Novel boiler deslagging machine

Abstract

The utility model relates to the technical field of boiler slag removal, and particularly discloses a novel boiler slag removal machine which comprises a material transferring box and a slag conveying piece, a feeding port communicated with the bottom of a boiler is formed in one end of the top of the material transferring box, and a slag discharging port is formed in the end, away from the feeding port, of the bottom of the material transferring box. A feeding loop communicated between the feeding port and the slag discharging port is arranged in the material transferring box, and the slag conveying piece comprises a pipe chain conveying mechanism arranged in the feeding loop and used for conveying slag from the feeding port to the slag discharging port and a motor used for driving the pipe chain conveying mechanism to operate and work. A heat exchange piece located on the bottom side of the feeding loop and used for cooling slag in the feeding loop is arranged in the material transfer box, a plurality of supporting columns are symmetrically arranged at the bottom of the material transfer box, and the problems that for regular slag removal of a traditional boiler, the slag needs to be poured into a transfer trolley from the boiler manually, the slag removal efficiency is low, regular slag removal still can cause slag accumulation, and the slag removal efficiency is low are solved. And the problem of insufficient combustion of coal is solved.

Description

Technical Field

[0001] The present application relates to the technical field of boiler slag removal, and specifically discloses a novel boiler slag removal machine. Background Art

[0002] Large boiler equipment is often needed in some thermal power plants, ships, locomotives and industrial and mining enterprises. Most of these boilers use coal-fired technology to heat existing equipment by burning coal. After the coal is burned, slag will be produced in the boiler. If the slag in the boiler is not cleaned and discharged in time, it will seriously affect the normal combustion of the coal and the combustion efficiency, because the slag will take up a lot of space inside the boiler, resulting in a lack of oxygen inside the boiler, making the coal in the boiler burn incompletely.

[0003] The existing method of removing slag from a boiler is to open the furnace of the boiler regularly, and have workers discharge the slag from the bottom of the boiler and pour it onto a transfer vehicle, and then have the workers use the transfer vehicle to transfer the discharged slag to a slag recovery point. However, only by removing the slag regularly, there will still be problems such as slag accumulation and affecting the combustion utilization rate of coal, and the slag removal efficiency is low. Therefore, in view of this, the inventor provides a new boiler slag removal machine to solve the above problems. Utility Model Content

[0004] The utility model aims to solve the problem that in order to remove slag regularly from traditional boilers, the slag needs to be manually poured from the boiler into a transfer vehicle, which not only has low slag removal efficiency, but also regular slag removal still causes slag accumulation, resulting in incomplete combustion of coal.

[0005] In order to achieve the above-mentioned purpose, the basic scheme of the utility model provides a new type of boiler slag removal machinery, including a transfer box installed and connected to the bottom of the boiler and a slag conveying member arranged in the transfer box, a top end of the transfer box is provided with a feed port connected to the bottom of the boiler, a bottom end of the transfer box away from the feed port is provided with a slag discharge port, a feeding circuit connected between the feed port and the slag discharge port is provided in the transfer box, the slag conveying member includes a pipe chain conveying mechanism arranged in the feeding circuit and used to transport the slag from the feed port to the slag discharge port and a motor for driving the pipe chain conveying mechanism to operate, a heat exchange member located on the bottom side of the feeding circuit and used to cool the slag in the feeding circuit is provided in the transfer box, and a plurality of support columns are symmetrically provided at the bottom of the transfer box.

[0006] The principles and effects of this basic solution are:

[0007] 1. Compared with the prior art, the utility model realizes the transportation of slag from the bottom of the boiler to the slag discharge port by arranging a feeding loop and a pipe chain conveying mechanism, and does not require workers to directly contact the boiler for slag discharge, thereby improving the work efficiency of workers. At the same time, by arranging a heat exchanger, the slag discharged from the boiler is cooled down, so that the slag in the boiler is removed as soon as it is produced, which is convenient for continuous boiler slag removal at any time, eliminates the hidden danger of insufficient boiler coal combustion due to regular slag removal, and thus improves the working efficiency of the boiler, and solves the problem that traditional boilers need to manually pour the slag from the boiler into a transfer vehicle for regular slag removal, which not only has low slag removal efficiency, but also regular slag removal will still cause slag accumulation, resulting in insufficient coal combustion.

[0008] Furthermore, the feeding circuit includes a feed pipe connected to the bottom of the feed port, a discharge chamber connected to an end of the feed pipe away from the feed port, a return chamber connected to an end of the feed pipe close to the feed port, and a return pipe connected to the discharge chamber and an end of the return chamber away from the feed port, the bottom of the feed port is connected to the side of the feed pipe, the inner wall diameters of the feed pipe and the return pipe are equal, the bottom of the discharge chamber is connected to the slag discharge port, and the pipe chain conveying mechanism includes a driving sprocket rotatably connected in the return chamber, a driven sprocket rotatably connected in the discharge chamber, a feed chain connected between the driving sprocket and the driven sprocket in a closed-loop meshing manner, and a plurality of pushing chain pieces evenly arranged on the feed chain and used to push the slag in the feed pipe, the pushing chain pieces can pass through the feed pipe and the return pipe, and the driving sprocket is coaxially connected to the output end of the motor. By arranging a feed pipe, a discharge chamber, a return chamber and a return pipe, a movement space is provided for the pipe chain conveying mechanism and a fixed slag discharge channel is provided, thereby improving the work efficiency of slag removal. By utilizing a motor to drive the meshing transmission between the active sprocket, the feed chain and the driven sprocket, the slag discharged into the feed pipe from the feed port is pushed through the push chain and discharged from the discharge chamber. The structure is simple, and the slag removal operation is continuous.

[0009] Furthermore, a guide bevel is provided on the inner wall of one side of the discharge chamber near the return chamber for guiding the slag into the slag discharge port, the top of the guide bevel is connected with the bottom of the port of the feed pipe, and the bottom of the guide bevel is arranged flush with the top of the port of the return pipe. By arranging the guide bevel and making its top and bottom respectively connected or arranged flush with the feed pipe and the return pipe, not only can the slag discharged from the feed pipe be directly guided into the slag discharge port at the bottom of the discharge chamber, making the slag discharge more convenient, but also the slag can be prevented from entering the return pipe.

[0010] Furthermore, a blocking ring is provided at one end of the return pipe connected to the discharge chamber to prevent slag from entering the return pipe. The blocking ring is a circular ring structure inclined from the return pipe to the discharge chamber, and the inner diameter of the end of the blocking ring close to the discharge chamber is equal to the outer diameter of the pusher chain. By providing the blocking ring, slag is further prevented from entering the return pipe.

[0011] Furthermore, the feed pipe and the return pipe are both arranged horizontally, and the heat exchange component includes a longitudinal through groove arranged in the transfer box and located outside the bottom end of the feed pipe, a heat exchange plate installed in the longitudinal through groove and fitted with the bottom end of the feed pipe, and a plurality of circulating cooling water pipes installed in the through groove and used to heat the existing equipment, one end of the circulating cooling water pipe is connected to a cooling water tank, and the circulating cooling water pipes are tangentially in contact with the bottom surface of the heat exchange plate and the bottom surface of the through groove. By arranging the heat exchange plate and the circulating cooling water pipe, the high temperature waste heat of the slag is exchanged and utilized with the low temperature of the cooling water, which not only achieves the purpose of cooling the slag and prevents workers from being scalded by the slag, but also reuses the excess high temperature heat energy, making the boiler production safer and more environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0013] Figure 1 A schematic diagram showing the structure of a new boiler slag removal machine proposed in the embodiment of the present application

[0014] Figure 2 The embodiment of the present application is shown Figure 1 Enlarged view of the structure of part A in the middle. DETAILED DESCRIPTION

[0015] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0016] The figure marks in the drawings of the specification include: transfer box 1, feed port 2, slag discharge port 3, feeding circuit 4, support column 5, feed pipe 6, discharge chamber 7, return chamber 8, return pipe 9, driving sprocket 10, driven sprocket 11, feed chain 12, push chain 13, guide bevel block 14, baffle ring 15, longitudinal transverse groove 16, heat exchange plate 17, circulating cooling water pipe 18.

[0017] A new type of boiler slag removal machine, for example Figure 1As shown: it includes a transfer box 1 installed and connected to the bottom of the boiler and a slag conveying member arranged in the transfer box 1, a feed port 2 connected to the bottom of the boiler is provided at the left end of the top of the transfer box 1, a slag discharge port 3 is provided at the right end of the bottom of the transfer box 1, a feeding circuit 4 connected between the feed port 2 and the slag discharge port 3 is provided in the transfer box 1, the slag conveying member includes a pipe chain conveying mechanism arranged in the feeding circuit 4 and used for conveying the slag from the feed port 2 to the slag discharge port 3 and a motor for driving the pipe chain conveying mechanism to operate, a heat exchange member located on the bottom side of the feeding circuit 4 and used for cooling the slag in the feeding circuit 4 is provided in the transfer box 1, and a total of four support columns 5 are symmetrically provided at the bottom of the transfer box 1.

[0018] Among them, Figure 1 As shown, the feeding circuit 4 includes a feeding pipe 6 connected to the bottom of the feeding port 2, a discharging chamber 7 connected to the right end of the feeding pipe 6, a return chamber 8 connected to the left end of the feeding pipe 6, and a return pipe 9 connected between the left bottom end of the discharging chamber 7 and the right bottom end of the return chamber 8. The bottom of the feeding port 2 is connected to the side of the feeding pipe 6, the inner wall diameters of the feeding pipe 6 and the return pipe 9 are equal, and the bottom of the discharging chamber 7 is connected to the slag discharge port 3. The pipe chain conveying mechanism includes a driving sprocket 10 rotatably connected in the return chamber 8, a driven sprocket 11 rotatably connected in the discharge chamber 7, a feed chain 12 connected between the driving sprocket 10 and the driven sprocket 11 in a closed loop, and dozens of pusher chain pieces 13 evenly arranged on the feed chain 12 and used to push the slag in the feed pipe 6. The pusher chain pieces 13 can pass through the feed pipe 6 and the return pipe 9, and the driving sprocket 10 is coaxially connected to the output end of the motor.

[0019] Among them, Figure 1 As shown, the left inner wall of the discharge chamber 7 is provided with a guide bevel 14 for guiding the slag into the slag discharge port 3, the top of the guide bevel 14 is connected with the bottom of the port of the feed pipe 6, and the bottom of the guide bevel 14 is flush with the top of the port of the return pipe 9.

[0020] Among them, Figure 1 As shown, the right end of the return pipe 9 is provided with a blocking ring 15 for preventing slag from entering the return pipe 9. The blocking ring 15 is a circular ring platform structure inclined from the return pipe 9 to the discharge chamber 7. The inner diameter of the right end of the blocking ring 15 is equal to the outer diameter of the pushing chain 13.

[0021] Among them, Figure 2As shown, the feed pipe 6 and the return pipe 9 are both arranged horizontally, and the heat exchange component includes a longitudinal through groove provided in the transfer box 1 and located on the outside of the bottom end of the feed pipe 6, a heat exchange plate 17 installed in the longitudinal through groove and installed in close contact with the bottom end of the feed pipe 6, and dozens of circulating cooling water pipes 18 installed in the through groove and used to provide heat for the existing equipment. The water inlet ends of the circulating cooling water pipes 18 are connected to the cooling water tank, and the outer sides of the circulating cooling water pipes 18 are in tangential contact with the bottom surface of the heat exchange plate 17 and the bottom surface of the through groove.

[0022] During the specific implementation of the present invention, during the combustion of the boiler, the burned slag is discharged from the bottom of the boiler, and the slag falls into the feed pipe 6 through the feed port 2. At the same time, the motor drives the active sprocket 10 to rotate clockwise, thereby driving the driven sprocket 11 and the feed chain 12 to engage and operate, and the feed chain 12 drives the pusher chain 13 to perform a clockwise circular circulation along the inside of the feed loop 4. As the feed chain 12 circulates in the feed loop 4, the slag that falls into the feed pipe 6 is pushed by the running pusher chain 13 and moves along the feed pipe 6 to the discharge chamber 7. When the slag is discharged from the feed pipe 6, it falls into the discharge chamber 7 along the guide ramp 14 and enters the slag discharge port 3 at the bottom thereof. The worker places the transfer vehicle for loading the slag under the slag discharge port 3 and receives the slag discharged from the slag discharge port 3, and then transfers the slag to the slag recovery point by the transfer vehicle.

[0023] Compared with the prior art, the utility model realizes the transportation of slag from the bottom of the boiler to the slag discharge port 3 by setting a feeding circuit 4 and a pipe chain conveying mechanism. There is no need for workers to directly contact the boiler for slag discharge, which improves the work efficiency of workers. At the same time, by setting a heat exchange component, the slag discharged from the boiler is cooled, so that the slag in the boiler is removed as soon as it is produced, which is convenient for continuous boiler slag removal at any time, eliminates the hidden danger of insufficient boiler coal combustion due to regular slag removal, and thus improves the working efficiency of the boiler, and solves the problem that traditional boilers need to manually pour the slag from the boiler into a transfer vehicle for regular slag removal. Not only is the slag removal efficiency low, but regular slag removal will still cause slag accumulation, resulting in insufficient coal combustion.

[0024] Compared with the prior art, the utility model provides movement space for the pipe chain conveying mechanism and a fixed slag discharge channel by arranging a feed pipe 6, a discharge chamber 7, a return chamber 8 and a return pipe 9, thereby improving the working efficiency of slag removal. The motor is used to drive the meshing transmission between the active sprocket 10, the feed chain 12 and the driven sprocket 11, and then the slag discharged into the feed pipe 6 from the feed port 2 is pushed and discharged from the discharge chamber 7 through the push chain 13. The structure is simple, so that the slag removal operation is continuous. By arranging a heat exchange plate 17 and a circulating cooling water pipe 18, the low temperature of the cooling water is used to exchange and utilize the high temperature waste heat of the slag, which not only achieves the purpose of cooling the slag and prevents workers from being scalded by the slag, but also reuses the excess high temperature heat energy, making boiler production safer and more environmentally friendly.

[0025] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A new type of boiler slag removal machine, characterized by: The transfer box comprises a transfer box installed and connected to the bottom of the boiler and a slag conveying member arranged in the transfer box, wherein a feed port connected to the bottom of the boiler is arranged at one end of the top of the transfer box, a slag discharge port is arranged at one end of the bottom of the transfer box away from the feed port, a feeding circuit connected between the feed port and the slag discharge port is arranged in the transfer box, the slag conveying member comprises a pipe chain conveying mechanism arranged in the feeding circuit and used for conveying the slag from the feed port to the slag discharge port, and a motor for driving the pipe chain conveying mechanism to operate, a heat exchange member located on the bottom side of the feeding circuit and used for cooling the slag in the feeding circuit is arranged in the transfer box, and a plurality of support columns are symmetrically arranged at the bottom of the transfer box.

2. A new type of boiler slag removal machine according to claim 1, characterized in that: The feeding circuit includes a feed pipe connected to the bottom of the feed port, a discharge chamber connected to one end of the feed pipe away from the feed port, a return chamber connected to one end of the feed pipe close to the feed port, and a return pipe connected to the discharge chamber and the end of the return chamber away from the feed port. The bottom of the feed port is connected to the side of the feed pipe, the inner wall diameters of the feed pipe and the return pipe are equal, the bottom of the discharge chamber is connected to the slag discharge port, and the pipe chain conveying mechanism includes a driving sprocket rotatably connected in the return chamber, a driven sprocket rotatably connected in the discharge chamber, a feed chain connected between the driving sprocket and the driven sprocket in a closed-loop meshing manner, and a plurality of pushing chain pieces evenly arranged on the feed chain and used to push the slag in the feed pipe. The pushing chain pieces can pass through the feed pipe and the return pipe, and the driving sprocket is coaxially connected to the output end of the motor.

3. A new type of boiler slag removal machine according to claim 2, characterized in that: The inner wall of the discharge chamber close to the return chamber is provided with a guide bevel for guiding the slag into the slag discharge port. The top of the guide bevel is connected with the bottom of the port of the feed pipe, and the bottom of the guide bevel is flush with the top of the port of the return pipe.

4. A new type of boiler slag removal machine according to claim 3, characterized in that: The end where the return pipe is connected to the discharge chamber is provided with a blocking ring for preventing slag from entering the return pipe. The blocking ring is a circular ring structure inclined from the return pipe to the discharge chamber. The inner diameter of the end of the blocking ring close to the discharge chamber is equal to the outer diameter of the push chain.

5. A new type of boiler slag removal machine according to claim 4, characterized in that: The feed pipe and the return pipe are both arranged horizontally, and the heat exchange component includes a longitudinal through groove arranged in the transfer box and located on the outside of the bottom end of the feed pipe, a heat exchange plate installed in the longitudinal through groove and installed in close contact with the bottom end of the feed pipe, and a plurality of circulating cooling water pipes installed in the through groove and used to provide heat for the existing equipment. One end of the circulating cooling water pipe is connected to the cooling water tank, and the circulating cooling water pipes are in tangential contact with the bottom surface of the heat exchange plate and the bottom surface of the through groove.

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