High-chlorine flue gas cooler

Abstract

The utility model discloses a high-chlorine flue gas cooler, which relates to the technical field of flue gas cooling equipment and comprises a bin body, a flue gas inlet and a flue gas outlet are arranged on the bin body, an air inlet is arranged on the bin body, a heat exchange tube is arranged in the bin body, and an ash removal device is arranged on the bin body. And the dust removing device works to remove dust ribs accumulated in the bin body, so that dust is prevented from adhering to the inner wall of the heat exchange pipe, the heat exchange effect of the whole device is better, the service life of the whole device is prolonged, and the practicability is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas cooling equipment, in particular to a high-chlorine flue gas cooler. Background Art

[0002] With the popularization of alternative fuel use and cement kiln co-treatment of solid waste and hazardous waste technology, the number of cement kilns equipped with dechlorination systems has increased rapidly to ensure the quality of cement clinker and the normal operation of cement kiln systems. The cement kiln dechlorination system is a system that extracts high-chlorine exhaust gas from the chlorine condensation area below the cement kiln decomposition furnace to reduce the chlorine content in the cement kiln. The cooling device that quickly cools the flue gas in this system is particularly important, but due to the high corrosiveness and high viscosity of high-dust and high-chlorine flue gas, the use of conventional air coolers has a high failure rate and occupies a large area. In addition, the layout space of cement production lines is usually limited, and high requirements are placed on operational continuity.

[0003] For example, the publication number CN214635296U disclosed a cement kiln SCR denitrification flue gas cooling system on November 9, 2021, including an inlet flue, a dual-fluid spray gun and a high-temperature fan outlet flue, the dual-fluid spray gun including a first dual-fluid spray gun and a second dual-fluid spray gun, one end of the inlet flue is connected to the high-temperature fan outlet flue, and the other end is connected to the connecting flue, the upper side of the connecting flue is fixedly provided with a first dual-fluid spray gun and a cold air valve in sequence, the lower side of the connecting flue is provided with an ash conveying system, the ash conveying system includes an ash hopper and an ash unloading valve, one end of the connecting flue is fixedly connected to the first flue, the first flue is connected to the raw material mill, the first flue is connected to the bag filter through the second flue, and the second flue is provided with a second dual-fluid spray gun. When the above-mentioned cooling device is in use, dust accumulates in the bin body, thereby making the cooling effect of the entire device worse. Summary of the invention

[0004] The utility model aims to provide a high-chlorine flue gas cooler with higher cooling performance. The utility model removes dust accumulated in the bin body through a dust removal device, thereby increasing the cooling effect of the entire device and having higher practicality.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model to solve its technical problem is: a high-chlorine flue gas cooler, including a warehouse body, the warehouse body is provided with a flue gas inlet and a flue gas outlet, the warehouse body is provided with an air inlet, the warehouse body is provided with a heat exchange pipe, and the warehouse body is provided with a dust removal device.

[0006] As a further solution of the utility model, an ash hopper is provided at the lower end of the bin body, the smoke outlet is arranged at the side end of the ash hopper, the smoke inlet is arranged at the upper end of the bin body, and the air inlet is arranged at the side end of the bin body.

[0007] As a further solution of the utility model, a fan is provided on the air inlet.

[0008] As a further solution of the utility model, a diffusion chamber is provided at the side end of the chamber body, and the air inlet is arranged on the diffusion chamber.

[0009] As a further solution of the utility model, fins are provided on the heat exchange tubes.

[0010] As a further solution of the present invention, the fin is spiral.

[0011] As a further solution of the present invention, the dust removal device includes a compression dust removal device and a vibration dust removal device.

[0012] As a further solution of the utility model, the compressed dust removal device includes a transverse pipe and an air intake pipe. The transverse pipe is connected to the outer wall of the warehouse body, the transverse pipe is connected to an external compressed air source, the transverse pipe is connected to one end of the air intake pipe, the other end of the air intake pipe extends into the warehouse body, and a control valve is provided on the air intake pipe.

[0013] As a further scheme of the utility model, the vibrating dust removal device includes a fixed plate, a fixed seat, a bearing seat, a rotating shaft, a pendulum, a motor, a driving pulley, a driven pulley and a transmission belt. The fixed plate is connected to the bin body, the fixed seat is connected to the fixed plate, the rotating shaft is connected to the fixed seat through the bearing seat, the pendulum is connected to the rotating shaft, the motor is connected to the fixed plate, the power output end of the motor is connected to the driving pulley, one end of the rotating shaft is connected to the driven pulley, and the driving pulley is connected to the driven pulley through the transmission belt.

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

[0015] The dust removal device removes the dust accumulated in the bin body, thereby preventing the dust from adhering to the inner wall of the heat exchange tube, thereby making the heat exchange effect of the entire device better, thereby increasing the service life of the entire device and making it more practical;

[0016] The heat exchange tubes are provided with fins to increase the heat exchange effect of the heat exchange tubes. In the present embodiment, the heat exchange tubes are vertically arranged and spaced in the bin body. The fins are spiral, which further increase the contact area between the heat exchange tubes and the air, thereby increasing the heat exchange effect and occupying a smaller area. The dust removal device includes a compression dust removal device and a vibration dust removal device. The compression dust removal device enters the bin body through compressed air to process the dust, or vibrates the heat exchange tubes in the bin body through the vibration dust removal device, thereby realizing dust removal. Stable dust removal is achieved through two different dust removal devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1It is a structural schematic diagram of the high-chlorine flue gas cooler of the utility model.

[0018] Figure 2 for Figure 1 Side view of.

[0019] Figure 3 for Figure 1 Top view of the .

[0020] Figure 4 for Figure 1 Schematic diagram of the heat exchange tube and fin structure.

[0021] Figure 5 for Figure 4 Schematic diagram of the cross-sectional structure.

[0022] Figure 6 for Figure 1 Schematic diagram of the pendulum and driving mechanism structure.

[0023] In the attached figure: 1-bin body, 2-ash hopper, 3-smoke inlet, 4-smoke outlet, 5-air inlet, 6-fan, 7-diffusion bin, 8-heat exchange tube, 9-fin, 10-cross tube, 11-inlet pipe, 12-fixed plate, 13-fixed seat, 14-bearing seat, 15-rotating shaft, 16-pendulum, 17-motor, 18-driving pulley, 19-driven pulley, 20-transmission belt. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0025] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0026] like Figure 1 As shown, the high-chlorine flue gas cooler includes a warehouse body 1, which is provided with a flue gas inlet 3 and a flue gas outlet 4. The warehouse body 1 is provided with an air inlet 5, and air enters the warehouse body 1 through the air inlet 5. An outlet is provided on the side of the warehouse body 1 opposite to the air inlet 5 for discharging the air after heat exchange. A heat exchange pipe 8 is provided in the warehouse body 1, and a dust removal device is provided on the warehouse body 1.

[0027] When in use, the flue gas enters the heat exchange tube 8 through the flue gas inlet 3 on the bin body 1, and the air enters the bin body 1 through the air inlet 5. The air cools the flue gas through the heat exchange tube 8, and the cooled flue gas is discharged through the flue gas outlet 4 on the bin body 1. After the entire device is used for a long time, the dust removal device will eliminate the dust accumulated in the bin body 1, thereby preventing dust from adhering to the inner wall of the heat exchange tube 8, so that the heat exchange effect of the entire device is better, thereby increasing the service life of the entire device and making it more practical.

[0028] Specifically, refer to Figure 1 An ash hopper 2 is provided at the lower end of the silo 1. Since the ash hopper 2 collects the fallen ash, the smoke outlet 4 is arranged at the side end of the ash hopper 2, the smoke inlet 3 is arranged at the upper end of the silo 1, and the air inlet 5 is arranged at the side end of the silo 1, so that the smoke enters the silo 1 from the upper side and is discharged from the lower side of the silo 1, the air enters from the left side of the silo 1, and the air after heat exchange is discharged from the right side.

[0029] Reference Figure 1-3 The air inlet 5 is provided with a fan 6 , which is a forced fan for realizing rapid flow of air into the warehouse body 1 . In this embodiment, two air inlets 5 are provided, both of which are arranged on the left side of the warehouse body 1 .

[0030] A diffusion chamber 7 is provided at the side end of the chamber body 1, and an air inlet 5 is arranged on the diffusion chamber 7, so that air can be stably blown into the chamber body 1 through the diffusion chamber 7. Specifically, the diffusion chamber 7 is conical.

[0031] Referring to Figures 4 and 5, fins 9 are provided on the heat exchange tube 8 to increase the heat exchange effect of the heat exchange tube 8. In this embodiment, the heat exchange tube 8 is vertically arranged and spaced apart in the silo body 1.

[0032] In this embodiment, the fins 9 are spiral-shaped, which further increases the contact area between the heat exchange tube 8 and the air, thereby increasing the heat exchange effect and occupying a smaller area.

[0033] The dust removal device includes a compression dust removal device and a vibration dust removal device. The compression dust removal device enters the silo 1 through compressed air to process the dust. The vibration dust removal device vibrates the heat exchange tube 8 inside the silo 1 to achieve dust removal. Stable dust removal can be achieved through two different dust removal devices.

[0034] Reference Figure 2, the compressed ash removal device includes a horizontal pipe 10 and an air inlet pipe 11. The horizontal pipe 10 is connected to the outer wall of the bin body 1. The horizontal pipe 10 is externally connected to a compressed air source. One end of the horizontal pipe 10 is connected to one end of the air inlet pipe 11, and the other end of the air inlet pipe 11 extends into the bin body 1. A control valve is provided on the air inlet pipe 11. The compressed air source allows compressed air to enter the bin body 1 through the horizontal pipe 10 and the air inlet pipe 11, thereby realizing the blowing work on the inner wall of the heat exchange pipe 8 inside the bin body 1. In this embodiment, there are nine air inlet pipes 11 on the horizontal pipe 10, and the control valve is an electromagnetic valve for controlling the on-off of the air inlet pipe 11.

[0035] Refer to Figure 6 , the vibrating ash removal device includes a fixing plate 12, a fixed seat 13, a bearing seat 14, a rotating shaft 15, a pendulum 16, a motor 17, a driving pulley 18, a driven pulley 19 and a transmission belt 20. The fixing plate 12 is connected to the bin body 1, the fixed seat 13 is connected to the fixing plate 12, the rotating shaft 15 is connected to the fixed seat 13 through the bearing seat 14, the pendulum 16 is connected to the rotating shaft 15, the motor 17 is connected to the fixing plate 12, the power output end of the motor 17 is connected to the driving pulley 18, one end of the rotating shaft 15 is connected to the driven pulley 19, and the driving pulley 18 is connected to the driven pulley 19 through the transmission belt 20. When the motor 17 works, the power output end of the motor 17 causes the driving pulley 18 to rotate. The rotation of the driving pulley 18 causes the transmission belt 20 to drive the driven pulley 19 to rotate. Further, the rotation of the driven pulley 19 causes the rotating shaft 15 to rotate, and the rotation of the rotating shaft 15 causes the pendulum 16 to rotate. Then, the pendulum 16 hammers the heat exchange pipe 8 inside the bin body 1, thereby realizing the dust removal work. In this embodiment, the fixing plate 12 is welded to the bin body 1. There are two fixed seats 13 on the fixing plate 12, and two bearing seats 14 are respectively provided on the two fixed seats 13, so that the two bearing seats 14 support the rotation of the rotating shaft 15. The motor 17 is connected to the fixing plate 12 by bolts.

[0036] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A high chlorine flue gas cooler, characterized in that: The invention comprises a silo (1), wherein the silo (1) is provided with a smoke inlet (3) and a smoke outlet (4), the silo (1) is provided with an air inlet (5), a heat exchange tube (8) is provided inside the silo (1), an ash removal device is provided on the silo (1), an ash hopper (2) is provided at the lower end of the silo (1), the smoke outlet (4) is arranged at the side end of the ash hopper (2), the smoke inlet (3) is arranged at the upper end of the silo (1), and the air inlet (5) is arranged at the side end of the silo (1).

2. The high chlorine flue gas cooler according to claim 1, characterized in that: The air inlet (5) is provided with a fan (6).

3. The high chlorine flue gas cooler according to claim 1, characterized in that: A diffusion chamber (7) is provided at the side end of the chamber body (1), and the air inlet (5) is arranged on the diffusion chamber (7).

4. The high-chlorine flue gas cooler according to any one of claims 1 to 3, characterized in that: The heat exchange tube (8) is provided with fins (9).

5. The high chlorine flue gas cooler according to claim 4, characterized in that: The fin (9) is spiral-shaped.

6. The high-chlorine flue gas cooler according to claim 5, characterized in that: The ash removal device comprises a compression ash removal device and a vibration ash removal device.

7. The high-chlorine flue gas cooler according to claim 6, characterized in that: The compression dust removal device comprises a transverse pipe (10) and an air intake pipe (11); the transverse pipe (10) is connected to the outer wall of the bin body (1); the transverse pipe (10) is externally connected to a compressed air source; the transverse pipe (10) is connected to one end of the air intake pipe (11); the other end of the air intake pipe (11) extends into the bin body (1); and a control valve is provided on the air intake pipe (11).

8. The high-chlorine flue gas cooler according to claim 6, characterized in that: The vibrating ash removal device comprises a fixed plate (12), a fixed seat (13), a bearing seat (14), a rotating shaft (15), a pendulum (16), a motor (17), a driving pulley (18), a driven pulley (19) and a transmission belt (20), wherein the fixed plate (12) is connected to the bin body (1), the fixed seat (13) is connected to the fixed plate (12), the rotating shaft (15) is connected to the fixed seat (13) via the bearing seat (14), the pendulum (16) is connected to the rotating shaft (15), the motor (17) is connected to the fixed plate (12), the power output end of the motor (17) is connected to the driving pulley (18), one end of the rotating shaft (15) is connected to the driven pulley (19), and the driving pulley (18) is connected to the driven pulley (19) via the transmission belt (20).

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