Rocker safety detection device for preventing ash hopper from being blocked by ash

Abstract

The utility model discloses a rocker safety detection device for preventing ash from being blocked by ash in an ash hopper, belongs to the field of boiler equipment, and solves the problem that the blockage of the ash hopper at the lower part of a fire grate cannot be found in time in the prior art. The device comprises a rotating rocker and a sleeve which are arranged on the side wall of the ash bucket, the sleeve penetrates through the side wall of the ash bucket and is relatively fixed with the ash bucket; the rotating rocker penetrates through the sleeve and rotates in the sleeve; a strip-shaped baffle plate is constructed at one end of the rotating rocker in the ash bucket, and a crank is constructed at one end of the rotating rocker outside the ash bucket; the sleeve is connected with an air cooling device; a rotary sealing device is arranged between the sleeve and the side wall of the ash bucket. According to the rocker safety detection device for preventing the ash hopper from being blocked by the ash disclosed by the utility model, an operator can rotate the crank to judge whether the ash is blocked or not during inspection, so that a furnace shutdown fault is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a rocker safety detection device for preventing ash chute from being blocked by ash, and belongs to the field of boiler equipment. BACKGROUND

[0002] All garbage incineration power plants in China use various forms of hydraulic mechanical grate as the main equipment of the garbage combustion system. An ash chute is usually used at the bottom of the grate to collect the ash after incineration on the grate, and an ash discharge valve is installed at the lower part of the ash chute. When the ash discharge valve is opened, the ash in the ash chute is discharged into the lower scraper, which is then transported to the slag removal machine to realize ash conveying. However, in actual operation, the ash chute at the lower part of the grate is often blocked. If this is not discovered in time, the high-temperature molten ash is easily hardened into coke blocks, eventually blocking the ash chute, causing the boiler to shut down. In order to avoid the occurrence of shutdown failure, we need to solve the problem of early detection and treatment of ash blocking. SUMMARY

[0003] The utility model provides a kind of rocker safety detection device for preventing ash chute from being blocked by ash, and operation personnel can rotate the handle to determine whether ash blocking occurs when conducting inspection, thereby avoiding the occurrence of shutdown failure.

[0004] The utility model adopts a kind of rocker safety detection device for preventing ash chute from being blocked by ash, comprising a rotating rocker arranged on the side wall of the ash chute.

[0005] The rocker safety detection device for preventing ash chute from being blocked by ash further comprises a sleeve arranged on the side wall of the ash chute, which penetrates the side wall of the ash chute and is fixed opposite to the ash chute. The rotating rocker penetrates the sleeve and rotates in the sleeve.

[0006] One end of the rotating rocker located in the ash chute is provided with a strip-shaped baffle, and the other end of the rotating rocker located outside the ash chute is provided with a handle.

[0007] The sleeve is connected with an air cooling device. The rotating sealing device is arranged between the sleeve and the side wall of the ash chute.

[0008] The air cooling device of the above-mentioned rocker safety detection device for preventing ash chute from being blocked by ash comprises a compressed air pipe, one end of which penetrates the side wall of the sleeve and communicates with the inside of the sleeve.

[0009] The compressed air pipe is provided with a control valve.

[0010] The rotating rocker is spaced apart from the inner wall of the sleeve, and the gap between the rotating rocker and the inner wall of the sleeve forms a cooling air chamber.

[0011] The optimized anti-ash chute clogging of the rocker safety detection device, the rotating sealing device comprises an inner flange plate one and an outer flange plate two, and the outer flange plate two is arranged in cooperation with the inner flange plate one; the inner flange plate one and the outer flange plate two are fixed through bolts;

[0012] The middle part of the inner flange plate one is provided with a through hole one, the end of the sleeve is inserted into the through hole one of the inner flange plate one and is fixed with the inner flange plate one; the middle segment of the rotating rocker is provided with a displacement limiting positioning ring, and the displacement limiting positioning ring is located between the inner flange plate one and the outer flange plate two.

[0013] The optimized anti-ash chute clogging of the rocker safety detection device, the inner flange plate one and the outer flange plate two have an annular sealing gasket therebetween.

[0014] The optimized anti-ash chute clogging of the rocker safety detection device, the inner flange plate one and the outer flange plate two have an annular sealing gasket therebetween.

[0015] The advantages of the present application are that: in the technical scheme of the present application, the operator manually rotates the rocker during each shift inspection, if the rocker can be rotated, it proves that there is no clogging inside, if it cannot be rotated, it proves that the ash chute is clogged, and the problem is found and treated in advance.

[0016] In order to avoid damage and burning of the rotating rocker caused by high-temperature ash and the like in the ash chute, a compressed air pipe is arranged on the sleeve in the present application, compressed air is blown into the cooling air chamber through the compressed air pipe, the airflow is increased, and the rotating rocker is cooled to prevent damage and burning of the rotating rocker.

[0017] In order to avoid the problem of leakage between the rotation of the rotating rocker and the sleeve, a graphite packing is arranged in the present application to seal the end of the sleeve between the rotating rocker and the sleeve, so as to avoid leakage. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The figure is a connection structure diagram of the rocker safety detection device and the ash chute of the present application;

[0019] Figure 2 The figure is a structure diagram of the present application;

[0020] Figure 3 The figure is a structure diagram of the air cooling device and the rotating sealing device of the present application. DETAILED DESCRIPTION

[0021] The technical characteristics of the present application will be further described below in combination with the drawings and specific embodiments.

[0022] As shown in the figure, the utility model is a kind of rocker safety detection device for preventing ash chute from being blocked by ash, including the rotary rocker 1 being arranged in ash chute side wall, rotary rocker 1 passes through ash chute side wall and is connected with ash chute rotation.

[0023] The technical scheme of the present application also provides a sleeve 2, which is arranged in the ash chute side wall, and a through hole is formed in the ash chute side wall for the sleeve 2 to pass through, the size of the through hole is matched with the sleeve 2, one end of the sleeve 2 passes through the through hole in the ash chute side wall, and the middle section of the sleeve 2 is welded and fixed with the through hole in the ash chute side wall in a sealed manner by welding.

[0024] The rotary rocker 1 passes through the sleeve 2 and rotates in the sleeve 2. The rotary rocker 1 can be a cylindrical rod made of high-temperature alloy steel, and the sleeve 2 can be a seamless steel pipe made of the same material as the rotary rocker 1. The high-temperature alloy steel of the rotary rocker 1 contains elements such as tungsten and molybdenum, which can maintain strength and toughness at high temperatures. The end of the rotary rocker 1 located in the ash chute is provided with a strip-shaped baffle 101. The baffle 101 can be in the shape of a strip-shaped rod, and the baffle 101 can be bent and formed from the end of the rotary rocker 1, or a rod made of the same material as the rotary rocker 1 can be welded to the end of the rotary rocker 1. The end of the rotary rocker 1 located outside the ash chute is provided with a handle, which can be in the form of a bakelite handle or a high-temperature rubber handle commonly used in the prior art.

[0025] The sleeve 2 is connected with an air cooling device.

[0026] In this embodiment, the air cooling device includes a compressed air pipe 3, one end of the compressed air pipe 3 passes through the side wall of the sleeve 2 and communicates with the inside of the sleeve 2. The compressed air pipe 3 is provided with a control valve 301.

[0027] In order to provide sufficient space for the compressed air to flow through the surface of the rotary rocker 1 in the sleeve 2, the rotary rocker 1 and the inner wall of the sleeve 2 are arranged in a spaced manner in this embodiment, and the gap between the rotary rocker 1 and the inner wall of the sleeve 2 forms a cooling air chamber 201. The compressed air flows in the cooling air chamber 201 to cool the rotary rocker 1 and prevent the rotary rocker 1 from being damaged or burned due to high-temperature ash in the ash chute.

[0028] In order to reduce the leakage, a rotary sealing device is arranged between the sleeve 2 and the ash chute side wall in this embodiment.

[0029] In this embodiment, the rotary sealing device includes an inner flange plate one 401 and an outer flange plate two 402. The outer flange plate two 402 is matched with the inner flange plate one 401, and the inner flange plate one 401 and the outer flange plate two 402 are fixed by bolts.

[0030] The middle part of the inner flange plate 401 is provided with a through hole 1, the end of the sleeve 2 is inserted into the through hole 1 of the inner flange plate 401, and the end of the sleeve 2 and the through hole 1 of the inner flange plate 401 are fixed by welding and sealed by welding caulking, so that the end of the sleeve 2 and the inner flange plate 1 are sealed. The inner flange plate 401 and the outer flange plate 402 have an annular sealing gasket 403, and the inner flange plate 401 and the outer flange plate 402 are in close contact with the sealing gasket 403.

[0031] The middle part of the outer flange plate 402 is provided with a through hole 2, and the size of the through hole 2 is slightly larger than the outer diameter of the rotating rocker 1, so that the rotating rocker 1 can pass through and rotate.

[0032] The middle part of the rotating rocker 1 is provided with a displacement limiting positioning ring 102, and the displacement limiting positioning ring 102 is an annular piece, and the displacement limiting positioning ring 102 is fixed on the middle part of the rotating rocker 1 by welding.

[0033] The inner flange plate 401 and the outer flange plate 402 form a space that can accommodate the displacement limiting positioning ring 102 due to the sealing gasket 403, and the displacement limiting positioning ring 102 is arranged between the inner flange plate 401 and the outer flange plate 402. Through the limitation of the displacement limiting positioning ring 102, the rotating rocker 1 can only rotate around the axis but cannot move axially.

[0034] The through hole 1 of the inner flange plate 401 has a graphite packing ring 404, and the end of the sleeve 2 inserted into the through hole 1 is in close contact with the graphite packing ring 404. After the sleeve 2 is inserted into the through hole 1 of the inner flange plate 401, the insertion depth of the sleeve 2 is less than the thickness of the inner flange plate 401, the graphite packing ring 404 is put into the through hole 1 of the inner flange plate 401 from the opening of the through hole 1 of the inner flange plate 401, and after the inner flange plate 401 and the outer flange plate 402 are installed, the end of the sleeve 2 and the sealing gasket 403 extrude the graphite packing ring 404 from both sides, and the graphite packing ring 404 seals the end of the sleeve 2. Moreover, the middle part of the graphite packing ring 404 has a through hole 3, and the rotating rocker 1 passes through the through hole 3, and after the graphite packing ring 404 is extruded, the inner wall of the through hole 3 of the graphite packing ring 404 contacts the rotating rocker 1 to form a rotating seal.

[0035] Of course, the above description is not a limitation of the present application, and the present application is not limited to the above examples. Within the scope of the present application, changes, modifications, additions or replacements made by ordinary skilled in the art should be within the protection scope of the present application.

Claims

1. A rocker safety detection device for preventing ash chute slagging, comprising a rotating rocker (1) arranged on the side wall of the ash chute; characterized in that: a sleeve (2) is arranged on the side wall of the ash chute, the sleeve (2) penetrates through the side wall of the ash chute and is fixed opposite to the ash chute; the rotating rocker (1) penetrates through the sleeve (2) and rotates in the sleeve (2); one end of the rotating rocker (1) located in the ash chute is provided with a strip-shaped baffle (101), and the other end of the rotating rocker (1) located outside the ash chute is provided with a rocking handle; the sleeve (2) is connected with an air cooling device; the sleeve (2) and the side wall of the ash chute are provided with a rotating sealing device. the air cooling device comprises a compressed air pipe (3), one end of the compressed air pipe (3) penetrates through the side wall of the sleeve (2) and communicates with the inside of the sleeve (2); 2. The anti-dust-hopper-clogging-rocker safety detection device according to claim 1, characterized in that: the compressed air pipe (3) is provided with a control valve (301). the rotating rocker (1) is arranged in a spaced manner with the inner wall of the sleeve (2), and the gap between the rotating rocker (1) and the inner wall of the sleeve (2) forms a cooling air chamber (201).

3. The anti-dust-hopper-clogging-rocker safety detection device according to claim 1, characterized in that: the rotating sealing device comprises an inner flange plate one (401) and an outer flange plate two (402), the outer flange plate two (402) is arranged in cooperation with the inner flange plate one (401); the inner flange plate one (401) and the outer flange plate two (402) are fixed by bolts; 4. The anti-dust-hopper-clogging-rocker safety detection device according to claim 1, characterized in that: the middle part of the inner flange plate one (401) is provided with a through hole one, the end of the sleeve (2) is inserted into the through hole one of the inner flange plate one (401) and fixed with the inner flange plate one (401); the middle segment of the rotating rocker (1) is provided with a displacement limiting positioning ring (102), and the displacement limiting positioning ring (102) is located between the inner flange plate one (401) and the outer flange plate two (402). the inner flange plate one (401) and the outer flange plate two (402) are provided with an annular sealing gasket (403).

5. The anti-dust-hopper-clogging-rocker safety detection device according to claim 4, characterized in that: the through hole one of the inner flange plate one (401) is provided with a graphite packing ring (404), and the end of the sleeve (2) inserted into the through hole one is in close contact with the graphite packing ring (404).

6. The anti-dust-hopper-clogging-rocker safety detection device of claim 4, wherein: ​

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