Slag cooler of circulating fluidized bed boiler

Abstract

The utility model relates to the technical field of boiler slag coolers, and discloses a circulating fluidized bed boiler slag cooler which comprises a slag cooling cylinder and a water tank, one side of the slag cooling cylinder is movably connected with a coarse material discharge pipe, a medium material discharge pipe and a fine material discharge pipe, the bottom of the slag cooling cylinder is fixedly connected with a fixing ring, the bottom of the fixing ring is movably connected with a first spring, and the bottom of the fixing ring is fixedly connected with a second spring. The bottom of the first spring is fixedly connected with a supporting frame, the bottom of the slag cooling cylinder is fixedly connected with a vibration motor, the top of the slag cooling cylinder communicates with a conveying pipe and an exhaust pipe, the interior of the slag cooling cylinder is movably connected with a first funnel, the bottom of the first funnel is fixedly connected with a second funnel, and the bottom of the second funnel is fixedly connected with a third funnel. Through the arrangement of the funnel I, the funnel II, the funnel III, the spring I, the spring II and the vibration motor, the slag cooling cylinder can be promoted to achieve an automatic sieving function, so that the trouble that the slag cooling cylinder needs to be sieved additionally traditionally is avoided, and meanwhile, the working efficiency is also improved.

Description

Technical Field

[0001] The utility model relates to the technical field of boiler slag coolers, and more specifically to a circulating fluidized bed boiler slag cooler. Background Art

[0002] The slag cooler is also called a slag cooler. The slag cooler is mainly composed of a cylinder, a slag inlet box, a slag outlet box, a power transmission device, a base frame and an electrical control system. The temperature of the large slag discharged from the lower part of the circulating fluidized bed boiler furnace is between 850℃ and 950℃. If it is discharged directly or enters the slag removal system, it will endanger life safety and is not conducive to the safe operation of the slag removal system and equipment. The function of the slag cooler is to reduce the slag discharge temperature to a temperature that the slag removal equipment can withstand and recover the physical sensible heat of the slag discharge. The fluidized bed slag cooler can also return the fine particles in the slag discharge to the furnace to improve the boiler's combustion efficiency and limestone utilization.

[0003] However, the existing slag cooler has shortcomings when in use: the existing slag cooler can only cool the coal slag when in use. If you want to return the fine particles in the slag discharge to the furnace, you must sieve them through a sifter, which is not only troublesome in use, but also affects work efficiency. Utility Model Content

[0004] In order to overcome the above defects of the prior art, the utility model provides a circulating fluidized bed boiler slag cooler to solve the problems existing in the above background technology.

[0005] The utility model provides the following technical scheme: a circulating fluidized bed boiler slag cooler, comprising a slag cooler and a water tank, one side of the slag cooler is movably connected with a coarse material discharge pipe, a medium material discharge pipe and a fine material discharge pipe, the bottom of the slag cooler is fixedly connected with a fixing ring, the bottom of the fixing ring is movably connected with a spring 1, the bottom of the spring 1 is fixedly connected with a support frame, the bottom of the slag cooler is fixedly connected with a vibration motor, the top of the slag cooler is connected with a feed pipe and an exhaust pipe, the interior of the slag cooler is movably connected with a funnel 1, the bottom of the funnel 1 The bottom of the slag cooling cylinder is fixedly connected with a funnel 2, the bottom of the slag cooling cylinder is fixedly connected with a funnel 3, the bottom of the slag cooling cylinder is movably connected with a spring 2, the interior of the slag cooling cylinder is fixedly connected with a baffle cylinder and a baffle, one side of the slag cooling cylinder is connected with a water delivery pipe, the input end of the water delivery pipe is fixedly connected with a water pump 1, the input end of the water pump 1 is connected with a water extraction pipe, the input end of the water extraction pipe is fixedly connected with a water tank, one side of the slag cooling cylinder is connected with a drain pipe, the output end of the drain pipe is fixedly connected with a water pump 2, and the output end of the water pump 2 is connected with a water delivery pipe;

[0006] Preferably, the input end of the coarse material discharge pipe passes through the side wall of the cold slag cylinder and is connected to one side of funnel one, the input end of the medium material discharge pipe passes through the side wall of the cold slag cylinder and is connected to one side of funnel two, and the input end of the fine material discharge pipe passes through the side wall of the cold slag cylinder and is connected to one side of funnel three.

[0007] Preferably, the bottom of the second spring is connected to the bottom of the inside of the slag cooling cylinder, and the number of the first spring is four.

[0008] Preferably, the baffle tube is located outside the funnel, and two ends of the baffle tube are respectively connected to one side of the inner wall of the cooling slag tube.

[0009] Preferably, one end of the water supply pipe away from the second water pump is connected to the top of the water tank, and a baffle is fixedly connected to the inside of the water tank, and the inside of the baffle is penetrated by a plurality of holes.

[0010] Preferably, there are three partitions, and water outlets are provided on the tops of the three partitions.

[0011] Technical effects and advantages of the utility model:

[0012] 1. The utility model is provided with funnel one, funnel two, funnel three, spring one, spring two and a vibration motor, which can cause the cold slag barrel to achieve the effect of automatic screening. When in use, when the coal slag is input from the feeding pipe into the inside of the cold slag barrel, the vibration motor is started to cause spring one to drive the cold slag barrel to vibrate. At this time, when spring two is vibrated, it will drive the funnel to swing, thereby causing the coal slag to vibrate. At this time, coarse coal slag will be output from the coarse material discharge pipe, medium material coal slag will be output from the medium material discharge pipe, and fine coal slag will be output from the fine material discharge pipe, thereby achieving the effect of automatic screening, thereby avoiding the trouble of the traditional need to screen it separately, and also improving work efficiency.

[0013] 2. The utility model can achieve the effect of automatic water circulation by providing a partition, a baffle cylinder, a water pump 2 and a water tank. When water is input into the cold slag cylinder by the water pump 1, the water will heat up while cooling the coal slag through the high temperature conduction of the coal slag. At this time, the water will be squeezed from the water outlet to the position of the drain pipe by the continuous water supply of the water pump 1, so that the water pump 2 can suck the heated water into the water tank again for cooling, thereby prompting the water in the cold slag cylinder to keep a low temperature at all times, thereby accelerating the cooling speed of the coal slag and avoiding the waste of water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0015] Figure 2 It is a structural schematic diagram of the right side section of the utility model.

[0016] Figure 3 It is a schematic diagram of the structure of the utility model in top view.

[0017] The accompanying drawings are marked as follows: 1. slag cooling cylinder; 2. water tank; 3. exhaust pipe; 4. fixing ring; 5. spring 1; 6. support frame; 7. water pipe; 8. vibration motor; 9. coarse material discharge pipe; 10. medium material discharge pipe; 11. fine material discharge pipe; 12. material conveying pipe; 13. partition; 14. funnel 1; 15. funnel 2; 16. funnel 3; 17. spring 2; 18. baffle cylinder; 19. water outlet; 20. water pump 1; 21. suction pipe; 22. water supply pipe; 23. water pump 2; 24. drainage pipe. DETAILED DESCRIPTION

[0018] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely illustrative. The circulating fluidized bed boiler slag cooler involved in the present invention is not limited to the various structures recorded in the following embodiments. All other implementations obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0019] Reference to this utility model Figure 1-3The shown embodiment provides a circulating fluidized bed boiler slag cooler, comprising a slag cooler 1 and a water tank 2, one side of the slag cooler 1 is movably connected with a coarse material discharge pipe 9, a medium material discharge pipe 10 and a fine material discharge pipe 11, the bottom of the slag cooler 1 is fixedly connected with a fixing ring 4, the bottom of the fixing ring 4 is movably connected with a spring 1 5, the bottom of the spring 1 5 is fixedly connected with a support frame 6, the bottom of the slag cooler 1 is fixedly connected with a vibration motor 8, the top of the slag cooler 1 is connected with a feed pipe 12 and an exhaust pipe 3, the inside of the slag cooler 1 is movably connected with a funnel 14, the bottom of the funnel 1 14 is fixedly connected with a funnel 2 15, the bottom of the funnel 2 15 is fixedly connected with a funnel 3 16, the bottom of the funnel 3 16 is movably connected with a spring 2 17, the inside of the slag cooler 1 is fixedly connected with a baffle 18 and a partition 13, one side of the slag cooler 1 is connected with a water pipe 7, and the input end of the water pipe 7 is fixedly connected with a water pump 1. Pump 1 20, the input end of water pump 1 20 is connected with a pumping pipe 21, the input end of the pumping pipe 21 is fixedly connected with a water tank 2, one side of the cold slag barrel 1 is connected with a drain pipe 24, the output end of the drain pipe 24 is fixedly connected with water pump 23, the output end of water pump 23 is connected with a water supply pipe 22. When in use, when the coal slag is input into the interior of the cold slag barrel 1 from the feeding pipe 12, the vibration motor 8 is started to prompt the spring 1 5 to drive the cold slag barrel 1 to vibrate. At this time, when the spring 2 17 is vibrated, it will drive the funnel to swing, thereby prompting the coal slag to vibrate. At this time, the coarse coal slag will be output from the coarse material discharge pipe 9, the medium material coal slag will be output from the medium material discharge pipe 10, and the fine coal slag will be output from the fine material discharge pipe 11, thereby achieving the effect of automatic screening, thereby avoiding the trouble of the traditional need for additional screening, and also improving work efficiency.

[0020] Furthermore, the input end of the coarse material discharge pipe 24 passes through the side wall of the cold slag cylinder 1 and is connected to one side of funnel one 14, the input end of the medium material discharge pipe 10 passes through the side wall of the cold slag cylinder 1 and is connected to one side of funnel two 15, and the input end of the fine material discharge pipe 11 passes through the side wall of the cold slag cylinder 1 and is connected to one side of funnel three 16. The advantage of such an arrangement is that the coal slag can be automatically screened, avoiding the trouble of traditional additional screening.

[0021] Furthermore, the bottom of the second spring 17 is connected to the bottom of the inside of the cold slag tube 1, and there are four springs 5. The advantage of this arrangement is that it can prevent the cold slag tube 1 from vibrating at the same frequency as the funnel 14, thereby avoiding the problem of internal water overflow. At the same time, by adding a secondary spring, the vibration frequency of the funnel can also be increased, thereby speeding up the filtering efficiency of the coal slag.

[0022] Furthermore, the baffle tube 18 is located outside the funnel, and both ends of the baffle tube 18 are respectively connected to one side of the inner wall of the cooling slag tube 1. The advantage of this arrangement is that it can encourage water to remain in the middle of the cooling slag tube 1 and the baffle tube 18, thereby avoiding the problem of water flowing out of the discharge pipe.

[0023] Furthermore, one end of the water supply pipe 22 away from the water pump 23 is connected to the top of the water tank 2, and a baffle is fixedly connected to the inside of the water tank 2, and the inside of the baffle is penetrated by a plurality of holes. The advantage of such a setting is that the heated water can be transported from the drain pipe 24 to the water tank 2 for cooling and reuse, thereby enabling the water in the cold slag drum 1 to always maintain a low temperature state, while also avoiding the waste of water resources.

[0024] Furthermore, there are three partitions 13, and water outlets 19 are provided on the tops of the three partitions 13. The advantage of such a setting is that it can achieve the purpose of distinguishing between cold and hot water. When cold water is input, hot water will flow up through the partition of the partition 13, thereby prompting the hot water to flow from the water outlet 19 to the input end of the drain pipe 24, and then prompting the water pump 23 to pump out the hot water.

[0025] The working principle of the utility model is as follows: first, the water pump 20 is started to cause the cold water in the water tank 2 to be transported to the middle of the cold slag cylinder 1 and the baffle cylinder 18, and then the coal slag is input from the feeding pipe 12 to the inside of the funnel 14, and then the vibration motor 8 is started to cause the spring 5 to drive the cold slag cylinder 1 to vibrate, and when the spring 2 17 is vibrated, it will drive the funnel to swing, thereby causing the coal slag to vibrate, and then the coarse coal slag will be output from the coarse material discharge pipe 9, the medium material coal slag will be output from the medium material discharge pipe 10, and the fine coal slag will be output from the fine material discharge pipe 11, thereby achieving the effect of automatic screening, thereby avoiding the traditional need to additionally screen it. The trouble of screening is reduced, and the work efficiency is also improved. Finally, when the coal slag is input into the cold slag cylinder 1, the water will heat up while cooling the coal slag through the high temperature conduction of the coal slag. At this time, start the water pump 20, and the water will be squeezed by the continuous water supply of the water pump 20. At this time, the hot water will flow up through the partition of the partition 13, thereby prompting the hot water to flow from the water outlet 19 to the input end of the drain pipe 24, so that the water pump 23 can suck the heated water into the water tank 2 again for cooling, and then prompt the water in the cold slag cylinder 1 to keep a low temperature at all times, thereby accelerating the cooling speed of the coal slag and avoiding the waste of water resources.

[0026] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0027] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0028] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A circulating fluidized bed boiler slag cooler, comprising a slag cooling cylinder (1) and a water tank (2), characterized in that: One side of the slag cooling barrel (1) is movably connected with a coarse material discharge pipe (9), a medium material discharge pipe (10) and a fine material discharge pipe (11); the bottom of the slag cooling barrel (1) is fixedly connected with a fixing ring (4); the bottom of the fixing ring (4) is movably connected with a spring 1 (5); the bottom of the spring 1 (5) is fixedly connected with a support frame (6); the bottom of the slag cooling barrel (1) is fixedly connected with a vibration motor (8); the top of the slag cooling barrel (1) is connected with a feed pipe (12) and an exhaust pipe (3); the interior of the slag cooling barrel (1) is movably connected with a funnel 1 (14); the bottom of the funnel 1 (14) is fixedly connected with a funnel 2 (15); the bottom of the funnel 2 (15) is fixedly connected with a support frame (6); A funnel three (16) is connected, and the bottom of the funnel three (16) is movably connected to a spring two (17). The interior of the slag cooling cylinder (1) is fixedly connected to a baffle cylinder (18) and a partition plate (13). One side of the slag cooling cylinder (1) is connected to a water supply pipe (7). The input end of the water supply pipe (7) is fixedly connected to a water pump one (20). The input end of the water pump one (20) is connected to a water extraction pipe (21). The input end of the water extraction pipe (21) is fixedly connected to a water tank (2). One side of the slag cooling cylinder (1) is connected to a drainage pipe (24). The output end of the drainage pipe (24) is fixedly connected to a water pump two (23). The output end of the water pump two (23) is connected to a water supply pipe (22).

2. The circulating fluidized bed boiler slag cooler according to claim 1, characterized in that: The input end of the coarse material discharge pipe (9) passes through the side wall of the cold slag cylinder (1) and is connected to one side of the funnel one (14); the input end of the medium material discharge pipe (10) passes through the side wall of the cold slag cylinder (1) and is connected to one side of the funnel two (15); and the input end of the fine material discharge pipe (11) passes through the side wall of the cold slag cylinder (1) and is connected to one side of the funnel three (16).

3. The circulating fluidized bed boiler slag cooler according to claim 1, characterized in that: The bottom of the second spring (17) is connected to the bottom of the inside of the slag cooling tube (1), and the number of the first spring (5) is four.

4. The circulating fluidized bed boiler slag cooler according to claim 1, characterized in that: The baffle tube (18) is located outside the funnel, and two ends of the baffle tube (18) are respectively connected to one side of the inner wall of the slag cooling tube (1).

5. The circulating fluidized bed boiler slag cooler according to claim 1, characterized in that: One end of the water supply pipe (22) away from the second water pump (23) is connected to the top of the water tank (2), and a baffle is fixedly connected inside the water tank (2), and the inside of the baffle is penetrated by a plurality of holes.

6. The circulating fluidized bed boiler slag cooler according to claim 1, characterized in that: There are three partitions (13), and water outlets (19) are provided on the tops of the three partitions (13).

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