Horizontal hydraulic ash removal device

Abstract

The utility model discloses a horizontal hydraulic ash removal device which comprises a frame body, a walking motor is arranged on the top of the inner side of the frame body in the length direction, a water injector, a rotating motor and a gun barrel body are arranged below the walking motor, and the water injector is fixedly connected with the driving end of the walking motor through a mounting frame. The rotating motor and the gun barrel body are located at the two ends of the water injector respectively, the rotating motor is fixedly connected with the mounting frame, and the gun barrel body is rotationally connected with the water injector. According to the horizontal hydraulic ash removal device, through the matching design of multiple structures, high-viscosity and high-hardness ash in a high-temperature area of a garbage waste heat boiler can be effectively removed, normal-temperature liquid water is sprayed to accumulated ash on the surface of a water cooling wall under high-temperature flue gas, and the ash removal efficiency is improved. The thermal stress generated when the accumulated dust is cooled by water and the impact of rapid volume expansion generated when liquid water absorbs heat and evaporates on the accumulated dust are utilized, so that the accumulated dust cracks and falls off, and the effect of cleaning the dust is achieved.

Description

Technical Field

[0001] This utility model relates to the field of waste incineration technology, and in particular to a horizontal hydraulic ash removal device. Background Technology

[0002] Waste incineration is the main method of waste disposal in my country. During the operation of waste incineration boilers, the high-temperature flue gas inside the furnace carries ash with low melting point, high viscosity and strong corrosiveness. This ash easily adheres to the heating surface of the waste heat boiler, reducing the heat exchange capacity and efficiency of the heat exchange surface. This leads to increased temperature in various parts of the flue and exhaust gas inside the furnace, high-temperature corrosion of the boiler heating surface and reduced boiler energy efficiency.

[0003] Traditional methods for addressing boiler ash accumulation include steam blowing, shock wave blowing, and sonic blowing. These methods utilize the direct impact of high-speed steam or the shock wave from gas combustion to remove ash. However, these methods are generally ineffective at removing high-viscosity, high-hardness ash from high-temperature areas such as superheaters and evaporators. To address the aforementioned technical problems, a new technical solution is proposed. Utility Model Content

[0004] Based on this, it is necessary to provide a horizontal hydraulic ash removal device to address the above-mentioned technical problems. Through the coordinated design of multiple structures, the device can effectively remove high-viscosity and high-hardness ash from the high-temperature area of ​​the waste heat boiler. The device sprays room-temperature liquid water onto the ash accumulated on the surface of the water-cooled wall under high-temperature flue gas. The thermal stress generated when the ash is cooled by the water and the rapid volume expansion generated when the liquid water absorbs heat and evaporates impact the ash, causing the ash to crack and fall off, thus achieving the ash removal effect.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A horizontal hydraulic ash removal device is used for ash removal in waste incineration boilers.

[0007] The horizontal hydraulic cleaning device specifically includes:

[0008] The frame body has a walking motor installed on the inner top and along its length. Below the walking motor are a water injector, a rotary motor, and a gun body. The water injector is fixedly connected to the drive end of the walking motor via a mounting bracket. The rotary motor and the gun body are located at both ends of the water injector. The rotary motor is fixedly connected to the mounting bracket, and the gun body is rotatably connected to the water injector. The output end of the rotary motor is fixedly connected to the gun body. A gun head body is detachably connected to the end of the gun body away from the water injector.

[0009] A protective outer panel is provided on the outside of the main frame body. One of the protective outer panels is provided with a connecting seat, which is connected to the water injector through a pipeline.

[0010] A water supply pipeline is located on the outside of the main frame body, and one end of the water supply pipeline is detachably connected to a connecting seat.

[0011] As a preferred embodiment of the horizontal hydraulic dust removal device provided by this utility model, the water supply pipeline includes a water delivery pipe, one end of which is detachably connected to a connecting seat 1 via a connecting seat 2, and the other end of which is fixedly connected to a filter screen. A pressure stabilizing pump and an electric valve are also respectively installed on the water delivery pipe.

[0012] In a preferred embodiment of the horizontal hydraulic cleaning device provided by this utility model, a stabilizing frame is fixedly connected to the inner side of one end of the frame body and the end away from the rotating motor. The gun rod body is located inside the stabilizing frame, and the stabilizing frame is slidably connected to the gun rod body.

[0013] As a preferred embodiment of the horizontal hydraulic cleaning device provided by this utility model, the stabilizing frame includes an annular frame, the upper and lower ends of which are fixedly connected to the frame body through fixed beams, and a plurality of ball bearings are arranged in an annular shape on the inner side of the annular frame, and the ball bearings are tumblingly connected to the annular frame.

[0014] In a preferred embodiment of the horizontal hydraulic cleaning device provided by this utility model, the ball bearings are configured in multiple sets, and the multiple sets of ball bearings are arranged parallel to each other along the axis of the annular frame.

[0015] In a preferred embodiment of the horizontal hydraulic cleaning device provided by this utility model, the gun head body is threadedly connected to the gun rod body, and the side of the gun head body is symmetrically provided with six nozzles at an angle.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The horizontal hydraulic ash removal device provided by this utility model, through the coordinated design of multiple structures, makes it easy to effectively remove high-viscosity and high-hardness ash in the high-temperature area of ​​the waste heat boiler. The device sprays room-temperature liquid water onto the ash accumulated on the surface of the water-cooled wall under high-temperature flue gas. The thermal stress generated when the ash is cooled by water and the rapid volume expansion generated when the liquid water absorbs heat and evaporates impact the ash, causing the ash to crack and fall off, thus achieving the ash removal effect. Attached Figure Description

[0018] To more clearly illustrate the solutions in this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 A schematic diagram of the internal structure of the main frame of the horizontal hydraulic cleaning device provided by this utility model;

[0020] Figure 2 A schematic diagram of the overall structure of the horizontal hydraulic cleaning device provided by this utility model;

[0021] Figure 3 A schematic diagram of the water supply pipeline of the horizontal hydraulic cleaning device provided by this utility model;

[0022] Figure 4 A schematic diagram of the structure of the stabilizer frame for the horizontal hydraulic dust removal device provided by this utility model;

[0023] Figure 5 Enlarged structural view of the stabilizer frame of the horizontal hydraulic dust removal device provided by this utility model;

[0024] Figure 6 A cross-sectional view of the main body of the gun head of the horizontal hydraulic cleaning device provided by this utility model.

[0025] The markings in the diagram are explained as follows:

[0026] 1. Frame main body; 2. Walking motor; 3. Mounting bracket; 4. Water injector; 5. Rotary motor; 6. Gun barrel main body; 7. Gun head main body; 8. Protective outer plate; 9. Connecting seat one; 10. Water supply pipeline; 11. Water delivery pipe; 12. Connecting seat two; 13. Filter screen; 14. Pressure stabilizing pump; 15. Electric valve; 16. Stabilizing frame; 17. Ring frame; 18. Fixed beam; 19. Ball bearing; 20. Nozzle. Detailed Implementation

[0027] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort should fall within the scope of protection of the present invention.

[0028] As described in the background section, traditional methods for dealing with boiler ash accumulation include steam blowing, shock wave blowing, and sonic blowing. These methods utilize the force of high-speed steam directly scouring or gas explosion-induced shock waves to remove ash. However, these methods are generally ineffective at removing high-viscosity, high-hardness ash from high-temperature areas such as superheaters and evaporators.

[0029] To solve this technical problem, this utility model provides a horizontal hydraulic ash removal device, which is used for ash removal in waste incineration boilers.

[0030] For details, please refer to Figure 1 - Figure 4 The horizontal hydraulic cleaning device specifically includes:

[0031] The frame body 1 has a walking motor 2 installed on the inner top and along the length direction. Below the walking motor 2, a water injector 4, a rotary motor 5, and a gun body 6 are respectively installed. The water injector 4 is fixedly connected to the drive end of the walking motor 2 through a mounting bracket 3. The rotary motor 5 and the gun body 6 are located at both ends of the water injector 4. The rotary motor 5 is fixedly connected to the mounting bracket 3. The gun body 6 is rotatably connected to the water injector 4. The output end of the rotary motor 5 is fixedly connected to the gun body 6. A gun head body 7 is detachably connected to the end of the gun body 6 away from the water injector 4.

[0032] The protective outer panel 8 is located on the outside of the frame body 1. One of the protective outer panels 8 is provided with a connecting seat 9, which is connected to the water injector 4 through a pipeline.

[0033] The water supply pipe 10 is located on the outside of the frame body 1, and one end of the water supply pipe 10 is detachably connected to the connecting seat 9.

[0034] The horizontal hydraulic ash removal device provided by this utility model, through the coordinated design of multiple structures, makes it easy to effectively remove high-viscosity and high-hardness ash in the high-temperature area of ​​the waste heat boiler. The device sprays room-temperature liquid water onto the ash accumulated on the surface of the water-cooled wall under high-temperature flue gas. The thermal stress generated when the ash is cooled by water and the rapid volume expansion generated when the liquid water absorbs heat and evaporates impact the ash, causing the ash to crack and fall off, thus achieving the ash removal effect.

[0035] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0036] Example 1:

[0037] Please refer to Figure 1 - Figure 4 A horizontal hydraulic cleaning device, comprising:

[0038] The frame body 1 has a walking motor 2 installed on its inner top and along its length. Below the walking motor 2 are a water injector 4, a rotary motor 5, and a gun body 6. The water injector 4 is fixedly connected to the drive end of the walking motor 2 via a mounting bracket 3. The rotary motor 5 and the gun body 6 are located at opposite ends of the water injector 4. The rotary motor 5 is fixedly connected to the mounting bracket 3, and the gun body 6 is rotatably connected to the water injector 4. The output end of the rotary motor 5 is fixedly connected to the gun body 6. A gun head body 7 is detachably connected to the end of the gun body 6 away from the water injector 4. To improve the stability of the gun body 6, a stabilizing frame 16 is fixedly connected to the inner side of one end of the frame body 1 away from the rotary motor 5. The gun body 6 is located inside the stabilizing frame 16, and the stabilizing frame 16 is slidably connected to the gun body 6.

[0039] As can be seen, the main body 6 of the gun rod of this device is arranged horizontally. The main body 6 is driven by the traveling motor 2 to move horizontally, which facilitates the installation of the device in the horizontal flue of the waste heat boiler. It can also be installed for cleaning without shutting down the boiler by using the manhole. Combined with the addition of a relief tube on the screen heat exchanger, it can achieve cleaning of the second and third flues with screen evaporators installed. The cleaning principle of this device is to spray room temperature liquid water onto the ash accumulated on the surface of the water-cooled wall under high temperature flue gas. The thermal stress generated when the ash is cooled by water and the rapid volume expansion generated when the liquid water absorbs heat and evaporates impact the ash, causing the ash to crack and fall off, thus achieving the cleaning effect. This is different from external force cleaning methods such as steam blowing, shock wave blowing, and sonic blowing.

[0040] This device uses independent walking motor 2 and rotary motor 5 to drive the gun body 6 forward and rotate. It can independently realize the forward and backward movement of the gun body 6 or independently realize the rotation of the gun body 6. Compared with the hydraulically driven gun body rotation, it has higher control precision and more uniform dust removal.

[0041] This device is equipped with a PLC, which can precisely control the forward and backward distance and the ash cleaning speed. It can automatically start and stop the pump and open and close the valve. It can monitor the ash cleaning water flow and water pressure throughout the process. If any deviation occurs, it will promptly alarm and automatically and safely stop the system operation.

[0042] The protective outer plate 8 is located on the outside of the frame body 1. One of the protective outer plates 8 is equipped with a connecting seat 9, which is connected to the water injector 4 through a pipeline. The protective outer plate 8 can effectively protect the internal structure of the frame body 1, and the connecting seat 9 can facilitate the connection of the device to an external water source.

[0043] The water supply pipeline 10 is located outside the main frame 1, with one end detachably connected to the connecting seat 9. Specifically, the water supply pipeline 10 includes a water delivery pipe 11, one end of which is detachably connected to the connecting seat 9 via the connecting seat 12, and the other end of which is fixedly connected to a filter screen 13. A pressure-stabilizing pump 14 and an electric valve 15 are also installed on the water delivery pipe 11. The water supply pipeline 10 meets the device's water supply needs. Starting the pressure-stabilizing pump 14 delivers external water to the device through the water delivery pipe 11. The electric valve 15 controls the start and stop of the water supply. The filter screen 13 facilitates the filtration of the intake water, reducing the intrusion of impurities and preventing blockages.

[0044] After receiving the start command, the device starts the pressure stabilizing pump 14 to provide water pressure of 0.3-0.4 MPa. The traveling motor 2 starts and pushes the mounting frame 3 to drive the gun body 6 forward along the length of the frame body 1. At the same time, the rotary motor 5 starts and rotates the gun body 6 synchronously. The gun body 6 extends into the furnace through the pre-made ash removal hole on the boiler water-cooled wall. When the gun body 7 advances to the preset ash removal starting point, the electric valve 15 is opened. Room temperature water is sprayed out through the nozzle 20 of the gun body 7 to form a water column that sprays onto the heated surface to be cleaned. The room temperature water rapidly vaporizes and expands when it encounters the high temperature ash, cleaning the ash off. When the gun body 7 advances to the preset ash removal ending point, the traveling motor 2 moves in the opposite direction and the gun body 6 begins to retreat. When the gun body 7 retreats to the preset ash removal starting point, the electric valve 15 is closed to stop ash removal. When the gun body 7 retreats to the starting point, the traveling motor 2 and the rotary motor 5 stop the gun body 6 from retreating and rotating, the pressure stabilizing pump 14 stops running, and the ash removal process ends.

[0045] Example 2:

[0046] The horizontal hydraulic cleaning device provided in Example 1 has been further optimized, specifically, as follows: Figure 5 As shown, the stabilizer 16 includes a ring frame 17. The upper and lower ends of the ring frame 17 are fixedly connected to the frame body 1 via fixed beams 18. A plurality of ball bearings 19 are arranged in a ring on the inner side of the ring frame 17, and the ball bearings 19 are in rolling connection with the ring frame 17. The ball bearings 19 are configured in multiple sets, and the multiple sets of ball bearings 19 are arranged parallel to each other along the axial direction of the ring frame 17.

[0047] Through the above structural design, the movement of the gun barrel body 6 can be limited by the stabilizer 16, reducing the shaking and deviation of the gun barrel body 6.

[0048] Example 3:

[0049] The horizontal hydraulic cleaning device provided in Example 1 has been further optimized, specifically, as follows: Figure 6 As shown, the gun head body 7 is threadedly connected to the gun barrel body 6, and the side of the gun head body 7 is symmetrically provided with six nozzles 20 at an angle.

[0050] Through the above structural design, the main body 7 of the gun head adopts six nozzles 20 arranged symmetrically and at an angle, which can clean the accumulated dust on the front, back and sides of the heated surface pipe, and achieve comprehensive dust removal.

Claims

1. A horizontal hydraulic dust removal device, characterized in that, include: A frame body (1) is provided with a walking motor (2) on the top inner side of the frame body (1) and along its length. A water injector (4), a rotary motor (5), and a gun body (6) are respectively provided below the walking motor (2). The water injector (4) is fixedly connected to the drive end of the walking motor (2) through a mounting bracket (3). The rotary motor (5) and the gun body (6) are located at both ends of the water injector (4). The rotary motor (5) is fixedly connected to the mounting bracket (3). The gun body (6) is rotatably connected to the water injector (4). The output end of the rotary motor (5) is fixedly connected to the gun body (6). A gun head body (7) is detachably connected to the end of the gun body (6) away from the water injector (4). A protective outer plate (8) is provided on the outside of the frame body (1), and a connecting seat (9) is provided on one of the protective outer plates (8). The connecting seat (9) is connected to the water injector (4) through a pipeline. A water supply pipeline (10) is located outside the frame body (1), and one end of the water supply pipeline (10) is detachably connected to the connecting seat (9).

2. The horizontal hydraulic cleaning device according to claim 1, characterized in that, The water supply pipeline (10) includes a water delivery pipe (11). One end of the water delivery pipe (11) is detachably connected to the first connecting seat (9) via the second connecting seat (12). The other end of the water delivery pipe (11) is fixedly connected to a filter screen (13). The water delivery pipe (11) is also equipped with a pressure stabilizing pump (14) and an electric valve (15).

3. The horizontal hydraulic cleaning device according to claim 1, characterized in that, A stabilizer (16) is fixedly connected to the inner side of one end of the frame body (1) and the end away from the rotary motor (5). The gun barrel body (6) is located inside the stabilizer (16), and the stabilizer (16) is slidably connected to the gun barrel body (6).

4. The horizontal hydraulic cleaning device according to claim 3, characterized in that, The stabilizer (16) includes a ring frame (17). The upper and lower ends of the ring frame (17) are fixedly connected to the frame body (1) through fixed beams (18). The inner side of the ring frame (17) is provided with a number of balls (19) in a ring shape. The balls (19) are in rolling connection with the ring frame (17).

5. The horizontal hydraulic cleaning device according to claim 4, characterized in that, The ball bearings (19) are configured in multiple groups, and the multiple groups of ball bearings (19) are arranged parallel to each other along the axis of the ring frame (17).

6. The horizontal hydraulic cleaning device according to claim 1, characterized in that, The gun head body (7) is threadedly connected to the gun barrel body (6), and the gun head body (7) has six nozzles (20) symmetrically arranged on its side with an angle.

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