Slag penetrating prevention slag cooler

Abstract

The utility model discloses an anti-slag-penetration slag cooler, relates to the field of slag coolers, and mainly aims to solve the problem that high-temperature slag and fire can penetrate out of a channel in the middle of a spiral slag guide sheet of the slag cooler to damage slag conveying equipment at present. The device comprises a base, a rail of a barrel is arranged on a riding wheel of the base, a large chain wheel of the barrel is connected with a chain wheel of a motor through a chain, a slag discharge pipe extends into a slag inlet, and the other ends of a water inlet pipe and a water return pipe which are communicated with a water jacket of the barrel are connected with a rotary joint; a slag outlet is formed in the rear end of the barrel, a spiral slag guide sheet A is arranged on the inner wall of the barrel between the slag inlet and the slag outlet, and a stop block is arranged in a channel in the middle of the spiral slag guide sheet A. A water inlet and a water outlet are formed in the surface, in contact with the inner wall of the barrel body, of the spiral slag guide sheet A; a high-temperature slag penetration prevention section is arranged in the cylinder body in front of the spiral slag guide sheet A, and a low-temperature slag penetration prevention section is arranged in the cylinder body behind the spiral slag guide sheet A. The device has the advantage that fire disasters caused by slag penetration of the slag cooler are inhibited.

Description

Technical Field

[0001] This utility model relates to the field of slag coolers, specifically to a slag cooler that prevents slag penetration. Background Technology

[0002] A slag cooler is a device for cooling high-temperature slag. It includes a base, a motor reducer fixed on the base, two tracks fixed on the outer wall of the cylinder surrounding the cylinder, the tracks resting on the base's support rollers, a large sprocket on the outer wall of the cylinder, and a chain connecting the large sprocket to the drive sprocket of the motor reducer. The front end of the cylinder has a slag inlet connected to a slag discharge pipe, which is connected to the upper boiler. The rear end of the cylinder has a slag discharge port. The inner wall of the cylinder is welded with spiral slag guide plates. The cylinder has a double-wall structure, with a water jacket between the two walls containing cooling water. The outside of the cylinder has an inlet pipe and a return pipe connected to the water jacket. The inlet pipe is connected to the outlet on the rotary joint at the rear end of the cylinder, and the return pipe is connected to the rotary return pipe of the rotary joint. The motor reducer drives the cylinder to rotate, which in turn drives the slag forward in the cylinder while the cooling water cools the slag. The slag is then discharged from the slag discharge port.

[0003] The existing slag cooler has a spiral guide plate welded to the inner wall of the cylinder. That is, the outer diameter of the spiral guide plate is welded to the inner wall of the cylinder of the slag cooler, and there is a distance between the inner diameter of the spiral guide plate and the axial center line of the cylinder. In this way, an axial channel is formed in the middle of the inner wall of the cylinder (i.e. the middle of the spiral guide plate).

[0004] When a leak occurs in the boiler slag discharge system, the boiler's flame can be blown into the slag cooler by the boiler's positive pressure air. The high-temperature slag and flame, around 1000℃, enter the slag cooler and exit through the channel in the middle of the spiral guide plates, damaging the downstream slag conveying equipment. If the conveying equipment is a belt conveyor, it can cause the belt to catch fire and burn. If the conveying equipment is a scraper conveyor or chain bucket conveyor, the high-temperature flame can deform the equipment or even render it unusable.

[0005] The risk of a fire at the scene is extremely high, posing a significant danger. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide a slag-proof slag cooler that prevents high-temperature slag and fire from penetrating the slag cooler when there is a hole in the slag discharge.

[0007] The purpose of this utility model is achieved as follows: It includes a base, a motor reducer fixed on the base, a slag discharge pipe fixed at the front end of the base, a rotary joint connected to the rear end of the base, two tracks surrounding the cylinder fixed on the outer wall of the cylinder, rollers provided on the base at the positions corresponding to the two tracks, the two tracks on the outer wall of the cylinder respectively placed on the corresponding rollers of the base, a large sprocket provided on the cylinder between the two tracks, the large sprocket being connected to the drive sprocket of the motor reducer via a chain, a slag inlet at the front end of the cylinder, the slag discharge pipe extending into the slag inlet, several inclined slag guide plates A welded on the inner wall of the slag inlet, the cylinder having a double-wall structure, the space between the double walls of the cylinder being a water jacket, several water inlet pipes and water return pipes connected to the water jacket fixed on the outside of the cylinder, the other end of the water inlet pipe connected to the water outlet on the rotary joint, and the other end of the water return pipe connected to the rotary return pipe of the rotary joint; a slag outlet at the rear end of the cylinder, several inclined slag guide plates B welded on the inner wall of the slag outlet;

[0008] Its features are: a spiral guide plate A is welded on the inner wall of the cylinder between the slag inlet and the slag outlet, that is, the outer diameter of the spiral guide plate A is welded on the inner wall of the cylinder, and there is a distance between the inner diameter of the spiral guide plate A and the axial center line of the drum, forming an axial channel. A stop block matching the channel diameter is provided in the channel in the middle of the spiral guide plate A, and the stop block is fixed on the inner diameter of the spiral guide plate A.

[0009] The spiral guide plate A is made into a double-wall structure, with an inlet and an outlet on the surface that contacts the inner wall of the cylinder, that is, the internal space of the spiral guide plate A is connected to the water jacket of the cylinder.

[0010] To better prevent high-temperature slag and fire from penetrating through the spiral slag guide plate A of the slag cooler, a high-temperature anti-slag-penetration section can be added to the cylinder in front of the spiral slag guide plate A. This high-temperature anti-slag-penetration section includes a front support plate and a front partition plate. The front support plate is welded to the inner wall of the cylinder behind the slag inlet, and the front support plate contacts the rear end of the slag inlet. The front partition plate is welded to the inner wall of the cylinder in front of the spiral slag guide plate A. A distance is left between the front support plate and the front partition plate. Several front slag guide pipes are installed between the front support plate and the front partition plate, with the front and rear ends of each front slag guide pipe welded to the front support plate and the front partition plate, respectively. On the plate, the front support plate and the front partition plate have openings at the positions corresponding to each front guide slag pipe. A spiral guide slag plate B is welded to the inner wall of each front guide slag pipe; that is, the outer diameter of the spiral guide slag plate B is welded to the inner wall of the front guide slag pipe. There is a distance between the inner diameter of the spiral guide slag plate B and the axial centerline of the front guide slag pipe, forming an axial channel. A high-temperature stop block matching the channel diameter is installed in the channel in the middle of the spiral guide slag plate B. The high-temperature stop block is fixed to the inner diameter of the spiral guide slag plate B. The space between each front guide slag pipe is a front water storage chamber, which is connected to the water jacket. Several inclined guide slag plates C are provided on the side of the front partition plate facing the spiral guide slag plate A. The two ends of the guide slag plates C are welded to the inner wall of the cylinder and the front partition plate, respectively.

[0011] A low-temperature anti-slag-penetration section can also be added to the cylinder behind the spiral slag guide plate A. This low-temperature anti-slag-penetration section includes a rear support plate and a rear partition plate. The rear support plate is welded to the inner wall of the cylinder in front of the slag outlet, and the rear partition plate is welded to the inner wall of the cylinder behind the spiral slag guide plate A. A distance is left between the rear support plate and the rear partition plate. Several rear slag guide pipes are connected between the rear support plate and the rear partition plate; that is, the front and rear ends of each rear slag guide pipe are welded to the rear partition plate and the rear support plate, respectively. The rear support plate and the rear partition plate are positioned corresponding to each rear slag guide pipe. An opening is provided at the location, and a spiral guide plate C is welded to the inner wall of each rear slag guide pipe. The outer diameter of the spiral guide plate C is welded to the inner wall of the rear slag guide pipe, and there is a distance between the inner diameter of the spiral guide plate C and the axial centerline of the rear slag guide pipe, forming an axial channel. A low-temperature stop block matching the channel diameter is installed in the channel in the middle of the spiral guide plate C, and the low-temperature stop block is fixed to the inner diameter of the spiral guide plate C. The space between each rear slag guide pipe is a rear water storage chamber, which is connected to the water jacket. Several inclined guide plates D are provided on the side of the rear partition plate facing the spiral guide plate A. The two ends of the guide plates D are welded to the inner wall of the cylinder and the rear partition plate, respectively.

[0012] The advantages of this utility model are: because a stop block matching the diameter of the channel is installed in the middle of the spiral slag guide plate A, when there is a gap in the boiler slag discharge, the fire blown into the slag cooler by the positive pressure air of the boiler will be blocked by the stop block. This prevents the fire from passing through the middle of the slag cooler and damaging the slag conveying equipment, thus reducing the risk of fire.

[0013] Because it is equipped with a high-temperature anti-slag-penetration section, a medium-temperature anti-slag-penetration section, and a low-temperature anti-slag-penetration section, and a stop block is installed in the channel in the middle of the spiral slag guide plate of the three anti-slag-penetration sections, it can completely block the ejection of high-temperature slag material and furnace fire, and completely suppress the occurrence of fire caused by slag penetration of the cold slag machine. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0015] Figure 2 yes Figure 1 AA view;

[0016] Figure 3 yes Figure 1 BB view;

[0017] Figure 4 This is a schematic diagram of the left-side structure of this utility model;

[0018] Figure 5 This is a schematic diagram of the internal structure of the present invention. Detailed Implementation

[0019] The following is combined Figure 1-5 The present invention will be further described below;

[0020] It includes a base 1, a motor reducer 2 fixed on the base, a slag discharge pipe 3 fixed to the front end of the base, a rotary joint 4 connected to the rear end of the base, two tracks 5 fixed around the outer wall of the cylinder 8, rollers 6 provided on the base at the positions corresponding to the two tracks, the two tracks on the outer wall of the cylinder respectively placed on the corresponding rollers of the base, a large sprocket 7 provided on the cylinder between the two tracks, the large sprocket being connected to the drive sprocket of the motor reducer via a chain, a slag inlet 9 at the front end of the cylinder, and the slag discharge pipe extending into the slag inlet. Inside the inlet, several inclined guide plates A10 are welded to the inner wall of the slag inlet. The cylinder has a double-wall structure, and the space between the two walls is a water jacket. Several inlet pipes 11 and return pipes 12 connected to the water jacket are fixed to the outside of the cylinder. The other end of the inlet pipe is connected to the outlet on the rotary joint, and the other end of the return pipe is connected to the rotary return pipe of the rotary joint. The rear end of the cylinder is provided with a slag outlet 13, and several inclined guide plates B14 are welded to the inner wall of the slag outlet. The rotary joint is a commercially available product.

[0021] Its features are: a spiral slag guide plate A15 is welded on the inner wall of the cylinder between the slag inlet and the slag outlet, that is, the outer diameter of the spiral slag guide plate A is welded to the inner wall of the cylinder, and there is a distance between the inner diameter of the spiral slag guide plate A and the axial center line of the drum, forming an axial channel. A stop block 16 matching the channel diameter is provided in the channel in the middle of the spiral slag guide plate A. The stop block is fixed on the inner diameter of the spiral slag guide plate A, that is, the stop block blocks the channel in the middle of the slag guide plate A, preventing the fire in the boiler from passing through the channel and damaging the slag conveying equipment.

[0022] To improve the cooling effect, the spiral slag guide plate A can be made into a double-wall structure, with an inlet and an outlet on the surface that contacts the inner wall of the cylinder, that is, the internal space of the spiral slag guide plate A is connected to the water jacket of the cylinder.

[0023] To better prevent high-temperature slag and fire from penetrating through the spiral slag guide plate A of the slag cooler, a high-temperature anti-slag-penetration section can be added to the cylinder in front of the spiral slag guide plate A. This high-temperature anti-slag-penetration section includes a front support plate 17 and a front partition plate 18. The front support plate is welded to the inner wall of the cylinder behind the slag inlet, and the front support plate contacts the rear end of the slag inlet. The front partition plate is welded to the inner wall of the cylinder in front of the spiral slag guide plate A. A distance is left between the front support plate and the front partition plate. Several front slag guide pipes 19 are provided between the front support plate and the front partition plate, i.e., the front end and rear end of each front slag guide pipe are welded to the front support plate and the front partition plate respectively. The support plate and front partition plate have openings at the corresponding positions of each front guide slag pipe. A spiral guide slag plate B20 is welded to the inner wall of each front guide slag pipe; that is, the outer diameter of the spiral guide slag plate B is welded to the inner wall of the front guide slag pipe. There is a distance between the inner diameter of the spiral guide slag plate B and the axial centerline of the front guide slag pipe, forming an axial channel. A high-temperature stop block 21, matching the channel diameter, is installed in the channel in the middle of the spiral guide slag plate B. The high-temperature stop block is fixed to the inner diameter of the spiral guide slag plate B, effectively blocking the channel. The space between each front guide slag pipe is a front water storage chamber, which is connected to the water jacket. Several inclined guide slag plates C22 are provided on the side of the front partition plate facing the spiral guide slag plate A. The two ends of the guide slag plates C are welded to the inner wall of the cylinder and the front partition plate, respectively.

[0024] A low-temperature anti-slag-penetration section can also be added to the cylinder behind the spiral slag guide plate A. This low-temperature anti-slag-penetration section includes a rear support plate 23 and a rear partition plate 24. The rear support plate is welded to the inner wall of the cylinder in front of the slag outlet, and the rear partition plate is welded to the inner wall of the cylinder behind the spiral slag guide plate A. A distance is left between the rear support plate and the rear partition plate. Several rear slag guide pipes 25 are connected between the rear support plate and the rear partition plate, with the front and rear ends of each rear slag guide pipe welded to the rear partition plate and the rear support plate, respectively. Openings are provided on the rear support plate and the rear partition plate at the positions corresponding to each rear slag guide pipe. Each rear slag guide pipe has a spiral slag guide plate C26 welded to its inner wall. The outer diameter of the spiral slag guide plate C is welded to the inner wall of the rear slag guide pipe. There is a distance between the inner diameter of the spiral slag guide plate C and the axial centerline of the rear slag guide pipe, forming an axial channel. A low-temperature stop block 27, matching the channel diameter, is installed in the channel in the middle of the spiral slag guide plate C. The low-temperature stop block is fixed to the inner diameter of the spiral slag guide plate C, effectively blocking the channel. The space between each rear slag guide pipe is a rear water storage chamber, which is connected to the water jacket. Several inclined slag guide plates D28 are provided on the side of the rear partition plate facing the spiral slag guide plate A. The two ends of the slag guide plates D are welded to the inner wall of the cylinder and the rear partition plate, respectively.

[0025] The slag enters the high-temperature anti-slag-penetration section and is rapidly decomposed before entering each of the front slag tubes for cooling. High-temperature cut-off blocks are installed in each front slag tube to prevent the boiler fire from entering the front slag tube and exiting through it.

[0026] Because the high-temperature slag in the front guide slag pipe of the high-temperature anti-slag-penetration section needs to be rapidly cooled and concentrated into the medium-temperature section located between the high-temperature anti-slag-penetration section and the low-temperature anti-slag-penetration section for centralized cooling, the spiral guide slag plate A located in the medium-temperature section has a double-layer structure with water inside to quickly cool the slag. The stop block can prevent the slag and fire from penetrating through the middle of the spiral guide slag plate A.

[0027] The slag in the intermediate temperature section needs to be further cooled and decomposed rapidly before entering the rear slag guide pipe of the low-temperature slag-proof section, and then discharged from the slag outlet. The low-temperature stop block installed in the rear slag guide pipe of the low-temperature slag-proof section further prevents slag and fire from penetrating the device.

[0028] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structure made using the contents of this utility model specification and drawings, or directly or indirectly applied to other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A slag-proof cooling slag machine, including a base (1), a motor reducer (2) fixed on the base, a slag pipe (3) fixed at the front end of the base, a rotary joint (4) connected to the rear end of the base, two tracks (5) fixed on the outer wall of the cylinder (8), a support roller (6) provided at the position of the corresponding two tracks on the base, the two tracks on the outer wall of the cylinder respectively placed on the support rollers of the base, a large sprocket (7) provided on the cylinder between the two tracks, the large sprocket being connected to the drive sprocket of the motor reducer through a chain, a slag inlet (9) at the front end of the cylinder, the slag pipe extending into the slag inlet, the cylinder having a double-wall structure, the space between the double walls of the cylinder being a water jacket, several water inlet pipes (11) and water return pipes (12) connected to the water jacket fixed on the outside of the cylinder, the other end of the water inlet pipe being connected to the outlet on the rotary joint, the other end of the water return pipe being connected to the rotary return pipe of the rotary joint; a slag outlet (13) provided at the rear end of the cylinder. Its characteristics are: A spiral guide plate A (15) is welded on the inner wall of the cylinder between the slag inlet and the slag outlet. That is, the outer diameter of the spiral guide plate A is welded on the inner wall of the cylinder. There is a distance between the inner diameter of the spiral guide plate A and the axial center line of the drum, forming an axial channel. A stop block (16) matching the channel diameter is provided in the channel in the middle of the spiral guide plate A. The stop block is fixed on the inner diameter of the spiral guide plate A.

2. The slag-resistant cooling machine according to claim 1, characterized in that: The spiral guide plate A has a double-wall structure, with an inlet and an outlet on the surface that contacts the inner wall of the cylinder. That is, the internal space of the spiral guide plate A is connected to the water jacket of the cylinder.

3. The anti-slag-penetration slag cooler according to claim 1 or 2, characterized in that: Several inclined guide plates A (10) are welded on the inner wall of the slag inlet, and several inclined guide plates B (14) are welded on the inner wall of the slag outlet.

4. The anti-slag-penetration slag cooler according to claim 1 or 2, characterized in that: A high-temperature anti-slag-penetration section is added inside the cylinder in front of the spiral slag guide plate A. The high-temperature anti-slag-penetration section includes a front support plate (17) and a front partition plate (18). The front support plate is welded to the inner wall of the cylinder behind the slag inlet, and the front support plate is in contact with the rear end of the slag inlet. The front partition plate is welded to the inner wall of the cylinder in front of the spiral slag guide plate A. There is a distance between the front support plate and the front partition plate. Several front slag guide pipes (19) are provided between the front support plate and the front partition plate. That is, the front end and the rear end of each front slag guide pipe are respectively welded to the front support plate and the front partition plate. On the partition, the front support plate and the front partition are provided with openings at the corresponding positions of each front guide slag pipe. Each front guide slag pipe is welded with a spiral guide slag plate B (20). That is, the outer diameter of the spiral guide slag plate B is welded to the inner wall of the front guide slag pipe. There is a distance between the inner diameter of the spiral guide slag plate B and the axial center line of the front guide slag pipe, forming an axial channel. A high temperature stop block (21) matching the channel diameter is provided in the channel in the middle of the spiral guide slag plate B. The high temperature stop block is fixed on the inner diameter of the spiral guide slag plate B.

5. The slag-resistant cooling machine according to claim 4, characterized in that: The space between each guide slag pipe is a front water storage chamber, which is connected to the water jacket.

6. The slag-resistant cooling machine according to claim 4, characterized in that: Several inclined slag guide plates C (22) are provided on the side of the front partition facing the spiral slag guide plate A. The two ends of the slag guide plates C are respectively welded to the inner wall of the cylinder and the front partition.

7. The anti-slag-penetration slag cooler according to claim 1 or 2, characterized in that: in A low-temperature anti-slag-penetration section is added to the cylinder behind the spiral slag guide plate A. The low-temperature anti-slag-penetration section includes a rear support plate (23) and a rear partition plate (24). The rear support plate is welded to the inner wall of the cylinder in front of the slag outlet, and the rear partition plate is welded to the inner wall of the cylinder behind the spiral slag guide plate A. There is a distance between the rear support plate and the rear partition plate. Several rear slag guide pipes (25) are connected between the rear support plate and the rear partition plate. That is, the front end and the rear end of each rear slag guide pipe are welded to the rear partition plate and the rear support plate, respectively. The rear support plate and the rear partition plate are connected to the rear slag guide pipes. An opening is provided at the location, and a spiral guide plate C (26) is welded to the inner wall of each rear guide slag pipe. That is, the outer diameter of the spiral guide plate C is welded to the inner wall of the rear guide slag pipe. There is a distance between the inner diameter of the spiral guide plate C and the axial center line of the rear guide slag pipe, forming an axial channel. A low-temperature stop block (27) matching the channel diameter is provided in the channel in the middle of the spiral guide plate C. The low-temperature stop block is fixed on the inner diameter of the spiral guide plate C. The space between each rear guide slag pipe is a rear water storage chamber, which is connected to the water jacket.

8. The slag-cooling machine for preventing slag penetration according to claim 7, characterized in that: Several inclined slag guide plates D (28) are provided on the side of the rear partition plate facing the spiral slag guide plate A. The two ends of the slag guide plates D are respectively welded to the inner wall of the cylinder and the rear partition plate.

9. The anti-slag-penetration slag cooler according to claim 4, characterized in that: in A low-temperature anti-slag-penetration section is added to the cylinder behind the spiral slag guide plate A. The low-temperature anti-slag-penetration section includes a rear support plate (23) and a rear partition plate (24). The rear support plate is welded to the inner wall of the cylinder in front of the slag outlet, and the rear partition plate is welded to the inner wall of the cylinder behind the spiral slag guide plate A. There is a distance between the rear support plate and the rear partition plate. Several rear slag guide pipes (25) are connected between the rear support plate and the rear partition plate. That is, the front end and the rear end of each rear slag guide pipe are welded to the rear partition plate and the rear support plate, respectively. The rear support plate and the rear partition plate are connected to the rear slag guide pipes. An opening is provided at the location, and a spiral guide plate C (26) is welded to the inner wall of each rear guide slag pipe. That is, the outer diameter of the spiral guide plate C is welded to the inner wall of the rear guide slag pipe. There is a distance between the inner diameter of the spiral guide plate C and the axial center line of the rear guide slag pipe, forming an axial channel. A low-temperature stop block (27) matching the channel diameter is provided in the channel in the middle of the spiral guide plate C. The low-temperature stop block is fixed on the inner diameter of the spiral guide plate C. The space between each rear guide slag pipe is a rear water storage chamber, which is connected to the water jacket.

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