Dynamic adjusting device for water seal of slagging machine of incinerator

Abstract

This utility model discloses a dynamically adjustable water seal device for an incinerator slag discharge machine, belonging to the field of slag treatment technology. It includes a slag discharge machine housing, with a slag discharge shaft connected to the top of the housing. A slag discharge port is located on the right side of the housing. A swing arm mechanism is located on the upper left side of the housing, and a hydraulic cylinder drive device for pushing the swing arm mechanism is located on the left side. A scraper frame is located below the swing arm mechanism, and a scraper is located on the right side of the scraper frame. A water tank is located below the hydraulic cylinder drive device. A water supply pipe for connecting to an external water source and an electrode level switch for monitoring the liquid level are located at the top of the water tank. A float valve and an overflow mechanism are located inside the water tank to control the liquid level. This utility model designs the overflow pipe of the incinerator slag discharge machine as a threaded, height-adjustable design, thereby achieving adjustment of the water seal liquid level. Simultaneously, the lower end of the slag discharge shaft is designed with a lower elevation, which increases the range of water seal adjustment.

Description

Technical Field

[0001] This utility model relates to the field of slag treatment technology, specifically to a dynamically adjustable water seal device for an incinerator slag discharge machine. Background Technology

[0002] A ash discharger is a type of ash removal equipment used in waste incineration boilers. The ash produced after municipal solid waste is burned in the boiler is pushed by the grate into the ash discharger housing, where it is cooled and then pushed out into an external ash storage pool.

[0003] The function of the water seal in the incinerator ash discharge machine:

[0004] (1) The water seal forms a barrier, isolating the high-temperature, slightly negative-pressure environment inside the incinerator from the external environment. This prevents harmful gases (such as dioxins and dust) from leaking out of the incinerator, ensuring a safe and environmentally friendly operating environment.

[0005] (2) The slag discharged from the combustion section of the incinerator is extremely hot. The water in the water seal can quickly cool the slag, avoiding damage to the slag discharge equipment caused by the high temperature and the impact force when the slag falls. The cooled slag is easier to process and transport.

[0006] (3) When the residue falls into the water seal, the water can effectively suppress the dust, reduce particulate pollution in the air, and improve the working environment.

[0007] (4) The water seal prevents external air from entering the incinerator and thus avoids affecting the combustion conditions inside the furnace (such as oxygen concentration and temperature). At the same time, the water seal also prevents the negative pressure environment inside the incinerator from being disrupted, ensuring the stability of the incineration process.

[0008] Problems with existing slag removal machines

[0009] (1) The water seal line of the slag discharge machine is fixed and inconvenient to adjust, resulting in the moisture content of the slag at the slag discharge port at the rear end of the slag discharge machine being too high or too low.

[0010] (2) The type, calorific value, or amount of residue processed by the incinerator may fluctuate due to seasonal, regional, or raw material changes. The fixed-height water seal cannot flexibly adjust the liquid level, which may lead to insufficient cooling of the residue or failure of the seal. For example, when the amount of residue suddenly increases, the water level may be too low, which may cause the high-temperature residue to directly contact the slag discharger parts, causing equipment damage.

[0011] (3) The bottom of the water seal may become clogged due to long-term accumulation of residue or sludge. If the height cannot be adjusted, the machine must be stopped and the water seal drained during cleaning, which will affect the continuity of production. The accumulation of sediment may also corrode the water seal structure and shorten its service life.

[0012] (4) The fixed water seal height is difficult to cope with the wear or deformation after long-term operation of the equipment (such as the wear of the slag remover scraper causing the slag to fall off the position), which may lead to local seal failure and increase the risk of harmful gas leakage.

[0013] (5) When the water level is too high, the evaporation of water increases, and water needs to be replenished frequently, which increases the consumption of water resources and heat energy; when the water level is too low, additional cooling measures are needed to prevent the residue from overheating, which leads to energy waste.

[0014] (6) In the event of a sudden malfunction (such as scraper jamming leading to residue accumulation), it is impossible to buffer the impact or strengthen the seal by temporarily raising the water level, so the machine must be shut down, which increases production losses.

[0015] To address the aforementioned problems, a dynamically adjustable water seal device for the incinerator slag discharge machine is needed. Utility Model Content

[0016] To solve the above-mentioned technical problems, this utility model provides a dynamically adjustable water seal device for an incinerator slag discharge machine.

[0017] The technical solution of this utility model is: a dynamically adjustable water seal device for an incinerator slag remover, comprising a slag remover housing, the top of which is connected to a slag discharge shaft, a slag outlet on the right side of the housing, a swing arm mechanism on the upper left side of the housing, a hydraulic cylinder drive device for pushing the swing arm mechanism on the left side of the swing arm mechanism, a scraper frame below the swing arm mechanism, a scraper on the right side of the scraper frame, a water tank below the hydraulic cylinder drive device, a water supply pipe for connecting to an external water source and an electrode level switch for monitoring the liquid level on the top of the water tank, and a float valve and an overflow mechanism for controlling the liquid level inside the water tank.

[0018] Furthermore, the overflow mechanism includes a threaded sleeve, the lower outer wall of which is fixedly connected to the bottom of the water tank by a fastener, the top of which is threadedly connected to an overflow pipe, and the lower end of which is connected to a drain pipe.

[0019] Note: By rotating the overflow pipe, the height of the overflow pipe can be adjusted, thus adjusting the height of the water seal line.

[0020] Furthermore, the fastener includes an upper flange and a lower flange disposed on the outer wall of the threaded sleeve. The upper flange is located on the inner wall of the bottom of the water tank, and the lower flange is located on the outer wall of the bottom of the water tank. The upper flange and the lower flange are connected by a screw, and a sealing gasket is provided between the lower flange and the outer wall of the bottom of the water tank.

[0021] Note: The threaded sleeve is fixed by the upper and lower flanges, and the sealing gasket enhances the sealing between the lower flange and the water tank.

[0022] Furthermore, the hydraulic cylinder driving device includes a drive base, and a hydraulic cylinder is obliquely hinged above the drive base. The telescopic end of the hydraulic cylinder is rotatably connected to the swing arm mechanism.

[0023] Explanation: The extension and retraction of the hydraulic cylinder drives the swing arm mechanism to scrape the waste residue from the bottom of the slag remover box.

[0024] Furthermore, the swing arm mechanism includes a bearing fixed to the top of the slag remover housing and a rotating shaft rotatably connected to the bearing. A fixing rod is fixedly connected to the rotating shaft via a connector, and the lower part of the fixing rod is fixed to the scraper frame.

[0025] Explanation: The fixed rod is pushed by the hydraulic cylinder, which in turn drives the entire swing arm mechanism to rotate around the rotating shaft, thereby causing the scraper frame to move to the right so that the scraper can scoop out the waste residue from the bottom of the slag removal machine box.

[0026] The beneficial effects of this utility model are:

[0027] This invention designs the water seal overflow pipe of the incinerator ash discharge machine as a threaded, height-adjustable design, thereby achieving adjustment of the water seal liquid level. Simultaneously, the lower end of the ash discharge shaft is designed with a lower elevation, which increases the range of water seal adjustment. The advantages of an adjustable water seal line are as follows:

[0028] (1) Adapt flexibly to changes in working conditions

[0029] By adjusting the water seal height, the liquid level can be optimized for different waste calorific values, residue amounts, or seasonal variations. Example: In winter, when the residue temperature is low, the water level is lowered to reduce evaporation; in summer, when the temperature is high, the water level is raised to enhance cooling.

[0030] (2) Enhance sealing and safety

[0031] The water seal height is dynamically adjusted to ensure that the liquid level always covers the residue falling area, preventing the leakage of harmful gases. It can cope with the deviation of the residue trajectory caused by equipment wear or deformation, maintaining a long-term sealing effect.

[0032] (3) Extend equipment life

[0033] By adjusting the water level, the impact of falling residue is buffered, reducing wear on mechanical components such as scrapers and chains. Direct contact between hot residue and equipment is avoided, minimizing thermal stress damage.

[0034] (4) Reduce maintenance costs and downtime

[0035] When clearing sediment, the water level can be temporarily lowered to expose the bottom, eliminating the need to completely drain the water seal and shortening maintenance time. The adjustment function can slow down the rate of siltation and reduce the frequency of cleaning.

[0036] (5) Energy conservation and resource optimization

[0037] Adjust the water level according to actual needs to reduce unnecessary water replenishment and evaporation losses, thereby reducing water consumption. Precisely control cooling efficiency to avoid energy waste caused by excessive cooling.

[0038] (6) Enhance emergency response capabilities

[0039] In the event of a sudden malfunction, the water level can be quickly raised to form a buffer layer, temporarily isolating the affected area and buying time for repairs. For example, if the scraper is stuck, raising the water level can prevent residue from accumulating and clogging the slag discharge port. Attached Figure Description

[0040] Figure 1 This is a schematic diagram of the structure of this utility model.

[0041] Figure 2 yes Figure 1 Enlarged view of point A in the middle.

[0042] Figure 3 This is a top view of the structure of this utility model.

[0043] Among them, 1-slag removal machine housing, 2-slag discharge shaft, 3-slag outlet, 4-swing arm mechanism, 5-cylinder drive device, 6-scraper frame, 61-scraper, 7-water tank, 71-water supply pipe, 72-electrode level switch, 73-float valve, 74-overflow mechanism, 741-threaded sleeve, 742-fixed parts, 743-overflow pipe, 744-drainage pipe, 7421-upper flange, 7422-lower flange, 7423-screw, 7424-sealing gasket, 51-drive seat, 52-hydraulic cylinder, 41-shaft seat, 42-rotating shaft, 43-connecting parts, 44-fixed rod. Detailed Implementation

[0044] Example 1:

[0045] like Figure 1 As shown, a dynamically adjustable water seal device for an incinerator slag remover includes a slag remover housing 1. The top of the slag remover housing 1 is connected to a slag discharge shaft 2. A slag outlet 3 is provided on the right side of the slag remover housing 1. A swing arm mechanism 4 is provided on the upper left side of the slag remover housing 1. A hydraulic cylinder drive device 5 for pushing the swing arm mechanism 4 is provided on the left side of the swing arm mechanism 4. A scraper frame 6 is provided below the swing arm mechanism 4. A scraper 61 is provided on the right side of the scraper frame 6. A water tank 7 is provided below the hydraulic cylinder drive device 5. A water supply pipe 71 for connecting to an external water source and an electrode level switch 72 for monitoring the liquid level are provided on the top of the water tank 7. A float valve 73 for controlling the liquid level and an overflow mechanism 74 are provided inside the water tank 7.

[0046] The overflow mechanism 74 includes a threaded sleeve 741. The lower outer wall of the threaded sleeve 741 is fixedly connected to the bottom of the water tank 7 via a fastener 742. An overflow pipe 743 is threadedly connected to the top of the threaded sleeve 741, and a drain pipe 744 is connected to the lower end of the threaded sleeve 741.

[0047] By rotating the overflow pipe 743, the height of the overflow pipe 743 can be adjusted, thereby adjusting the height of the water seal line.

[0048] The fastener 742 includes an upper flange 7421 and a lower flange 7422 located on the outer wall of the threaded sleeve 741. The upper flange 7421 is located on the inner wall of the bottom of the water tank 7, and the lower flange 7422 is located on the outer wall of the bottom of the water tank 7. The upper flange 7421 and the lower flange 7422 are connected by a screw 7423, and a sealing gasket 7424 is provided between the lower flange 7422 and the outer wall of the bottom of the water tank 7.

[0049] The threaded sleeve 741 is fixed by the upper flange 7421 and the lower flange 7422, and the sealing performance between the lower flange 7422 and the water tank 7 is enhanced by the sealing gasket 7424.

[0050] The hydraulic cylinder drive device 5 includes a drive base 51, and a hydraulic cylinder 52 is obliquely hinged above the drive base 51. The telescopic end of the hydraulic cylinder 52 is rotatably connected to the swing arm mechanism 4.

[0051] The extension and retraction of the hydraulic cylinder 52 pushes the swing arm mechanism 4 to cause the scraper frame 6 to scrape out the waste residue at the bottom of the slag removal machine box 1.

[0052] The swing arm mechanism 4 includes a bearing seat 41 fixed to the top of the slag remover housing 1 and a rotating shaft 42 rotatably connected to the bearing seat 41. A fixing rod 44 is fixedly connected to the rotating shaft 42 via a connector 43. The lower part of the fixing rod 44 is fixed to the scraper frame 6.

[0053] The hydraulic cylinder 52 pushes the fixed rod 44, which in turn drives the entire swing arm mechanism 4 to rotate around the rotating shaft 42, thereby causing the scraper frame 6 to move to the right and scrape out the waste slag at the bottom of the slag removal machine box 1.

[0054] The working method of the above embodiment 1 includes the following steps:

[0055] S1. The sleeve is fixed to the bottom of the water tank 7 by the fixing bracket 742. Cooling water is introduced into the water tank through the water supply pipe 71. The hydraulic cylinder 52 pushes the swing arm mechanism 4 to rotate around the rotating shaft 42, thereby driving the scraper frame 6 to reciprocate in the bottom of the slag removal machine box 1.

[0056] S2. Adjust the height of the overflow pipe 743 by rotating it, thereby controlling the height of the water cover.

[0057] In the above embodiments, the hydraulic cylinder 52, float valve 73, and electrode level switch 72 are all commercially available products. As long as they can achieve the function of this utility model, they are acceptable. Those skilled in the art can choose to use them based on common sense, and no special limitations are made here.

Claims

1. A dynamically adjustable water seal device for an incinerator slag discharge machine, characterized in that, The system includes a slag removal machine housing (1), the top of which is connected to a slag discharge shaft (2), a slag outlet (3) on the right side of the slag removal machine housing (1), a swing arm mechanism (4) on the upper left side of the slag removal machine housing (1), a hydraulic cylinder drive device (5) for pushing the swing arm mechanism (4) on the left side of the swing arm mechanism (4), a scraper frame (6) below the swing arm mechanism (4), a scraper (61) on the right side of the scraper frame (6), a water tank (7) below the hydraulic cylinder drive device (5), a water supply pipe (71) for connecting to an external water source and an electrode level switch (72) for monitoring the liquid level on the top of the water tank (7), and a float valve (73) and an overflow mechanism (74) for controlling the liquid level inside the water tank (7).

2. The dynamically adjustable water seal device for an incinerator slag discharge machine as described in claim 1, characterized in that, The overflow mechanism (74) includes a threaded sleeve (741), the lower outer wall of the threaded sleeve (741) is fixedly connected to the bottom of the water tank (7) by a fastener (742), the top of the threaded sleeve (741) is threadedly connected to an overflow pipe (743), and the lower end of the threaded sleeve (741) is connected to a drain pipe (744).

3. The dynamically adjustable water seal device for an incinerator slag discharge machine as described in claim 2, characterized in that, The fastener (742) includes an upper flange (7421) and a lower flange (7422) disposed on the outer wall of the threaded sleeve (741). The upper flange (7421) is located on the inner wall of the bottom of the water tank (7), and the lower flange (7422) is located on the outer wall of the bottom of the water tank (7). The upper flange (7421) and the lower flange (7422) are connected by a screw (7423), and a sealing gasket (7424) is provided between the lower flange (7422) and the outer wall of the bottom of the water tank (7).

4. The dynamically adjustable water seal device for an incinerator slag discharge machine as described in claim 1, characterized in that, The cylinder drive device (5) includes a drive base (51), and a hydraulic cylinder (52) is obliquely hinged above the drive base (51). The telescopic end of the hydraulic cylinder (52) is rotatably connected to the swing arm mechanism (4).

5. The dynamically adjustable water seal device for an incinerator slag discharge machine as described in claim 4, characterized in that, The swing arm mechanism (4) includes a bearing seat (41) fixed on the top of the slag remover housing (1) and a rotating shaft (42) rotatably connected to the bearing seat (41). A fixing rod (44) is fixedly connected to the rotating shaft (42) via a connector (43). The lower part of the fixing rod (44) is fixed to the scraper frame (6).

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