A feeding sealing device for a slag cooler

Abstract

The utility model relates to a slag cooler feed sealing device, belonging to the technical field of sealing devices. It includes a slag feed pipe and a slag feed port, the slag feed port is fixed on the side wall of the slag cooler, the slag feed pipe passes through the slag feed port and extends into the slag cooler; the part of the slag feed pipe located outside the slag cooler is sleeved with an elliptical plate; the outer periphery of the elliptical plate is sleeved with a floating sealing ring; the outer side of the floating sealing ring is fitted with a pressure plate; a packing is provided between the inner wall of the pressure plate and the slag feed pipe, and the packing is wound on the slag feed pipe; the packing is fitted with the elliptical plate and the floating sealing ring; a sealing pressure plate is fitted on one side of the packing relative to the elliptical plate; the elliptical plate is provided with a clamping bolt; the clamping bolt passes through the sealing pressure plate and the packing in sequence. The utility model further seals the gaps between the components by arranging the packing, the pressure plate and the clamping bolt, and the clamping state can be continuously adjusted after a period of use to prevent fine particles from leaking out of the slag cooler.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing devices, in particular to a feeding sealing device for a slag cooler. Background Art

[0002] Slag cooler is an accessory device used to cool and protect mechanical equipment. It is a device that circulates the cooling medium to take away the heat and dissipate it into the atmosphere to ensure the normal operation of the mechanical equipment. According to different working methods and performance requirements, slag coolers can be divided into water-cooled, air-cooled and oil-cooled types. Slag coolers usually consist of a feed port, a cooler, a conveying device, a fan and a discharge port. Among them, the cooler uses circulating water cooling or air cooling to cool the high-temperature slag to a certain temperature. The conveying device uses a chain or plate conveyor belt to transport the cooled slag to the discharge port.

[0003] With the application of low-nitrogen combustion technology in circulating fluidized boilers, the boiler return circulation rate has increased, and the slag particles discharged by the slag cooler have become finer, so that the slag leakage at the slag cooler inlet has become increasingly serious due to the finer particles, which has increased a lot of physical labor for boiler workers and polluted the boiler site hygiene. Through observation and analysis of the slag cooler inlet, it was found that Figure 3 As shown in the figure, due to the temperature change during the operation of the slag inlet, there is a gap between the floating sealing ring and the elliptical ring. At the same time, the gap becomes larger with long-term operation and wear, and fine particles in the slag leak out of the gap. Therefore, it is necessary to improve the sealing components of the slag inlet to solve the problem of slag leakage. Utility Model Content

[0004] Aiming at the problem of slag leakage due to the loose sealing of the slag inlet in the prior art, the utility model provides a slag cooler feeding sealing device to solve the above problem.

[0005] The utility model provides a feeding sealing device for a slag cooler, comprising a slag feeding pipe and a slag feeding port, the slag feeding port being fixed on the side wall of the slag cooler, the slag feeding pipe passing through the slag feeding port and extending into the slag cooler; a portion of the slag feeding pipe located outside the slag cooler is sleeved with an elliptical plate; a floating sealing ring is sleeved on the outer periphery of the elliptical plate; a pressure plate is fitted on the outer side of the floating sealing ring; a packing is provided between the inner wall of the pressure plate and the slag feeding pipe, the packing is wound around the slag feeding pipe; the packing is fitted with the elliptical plate and the floating sealing ring; a sealing pressure plate is fitted on one side of the packing opposite to the elliptical plate; the elliptical plate is provided with a clamping bolt; the clamping bolt passes through the sealing pressure plate and the packing in sequence.

[0006] Furthermore, the device also includes a second sealing ring arranged on the outside of the floating sealing ring; the second sealing ring abuts against the pressure plate; and the two are pressed together by a penetrating threaded fastener; the side of the second sealing ring opposite to the pressure plate abuts against the first sealing ring.

[0007] Furthermore, the inner side of the slag inlet is threadedly connected to a spiral blade; and the spiral blade abuts against a sealing ring.

[0008] Furthermore, the packing is graphite packing.

[0009] Furthermore, a connecting flange is provided at one end of the slag inlet pipe relative to the slag cooler.

[0010] Furthermore, the slag inlet pipe is arranged obliquely upward.

[0011] The working principle of the utility model is as follows: due to the temperature change during the operation of the slag inlet and the long-term operation wear, a gap is generated between the floating sealing ring and the elliptical plate, and the fine particles entering the slag cooler will leak out from the gap. The packing is wound around the slag inlet pipe; and the packing is fitted with the elliptical plate and the floating sealing ring, and then the packing is compacted with a pressing plate, so that the packing fits tightly with the elliptical plate and the floating sealing ring, and the gap between the two is sealed; the clamping bolt is responsible for tightening the clamping plate, the packing and the elliptical plate. After a period of use, tighten the clamping bolt, adjust the clamping plate, and follow up the packing to continue to achieve the sealing effect.

[0012] The beneficial effects of the utility model are:

[0013] The slag cooler feeding sealing device provided by the utility model further seals the gaps between the components by arranging packings, pressure plates and clamping bolts, and the clamping state can be continuously adjusted after being used for a period of time to prevent fine particles from leaking out of the slag cooler. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0016] Figure 2 This is a partial enlarged view of part A.

[0017] Figure 3 It is a schematic diagram of the structure of a part of the slag inlet pipe of an existing slag cooler.

[0018] In the figure, 1-slag inlet pipe, 2-slag inlet, 3-slag cooler, 4-elliptical plate, 5-floating sealing ring, 6-pressure plate, 7-packing, 8-sealing pressure plate, 9-tensioning bolt, 10-sealing ring 1, 11-sealing ring 2, 12-spiral blade. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0020] Example 1

[0021] A slag cooler feeding sealing device comprises a slag feeding pipe 1 and a slag feeding port 2, wherein the slag feeding port 2 is fixed on the side wall of the slag cooler 3, and the slag feeding pipe 1 passes through the slag feeding port 2 and extends into the slag cooler 3; the portion of the slag feeding pipe 1 located outside the slag cooler 3 is sleeved with an elliptical plate 4; a floating sealing ring 5 is sleeved on the outer periphery of the elliptical plate 4; a pressure plate 6 is fitted on the outer side of the floating sealing ring 5; a packing 7 is provided between the inner wall of the pressure plate 6 and the slag feeding pipe 1, and the packing 7 is wound on the slag feeding pipe 1; the packing 7 is fitted with the elliptical plate 4 and the floating sealing ring 5; a sealing pressure plate 8 is fitted on the side of the packing 7 opposite to the elliptical plate 4; the elliptical plate 4 is provided with a clamping bolt 9; the clamping bolt 9 passes through the sealing pressure plate 8 and the packing 7 in sequence.

[0022] Example 2

[0023] A slag cooler feeding sealing device comprises a slag feeding pipe 1 and a slag feeding port 2, wherein the slag feeding port 2 is fixed on the side wall of the slag cooler 3, the slag feeding pipe 1 passes through the slag feeding port 2 and extends into the slag cooler 3, and is arranged obliquely upward; a connecting flange is arranged at one end of the slag feeding pipe 1 opposite to the slag cooler 3; an elliptical plate 4 is sleeved on the part of the slag feeding pipe 1 located outside the slag cooler 3; a floating sealing ring 5 is sleeved on the outer periphery of the elliptical plate 4; a pressing plate 6 is attached to the outer side of the floating sealing ring 5; a packing 7 is arranged between the inner wall of the pressing plate 6 and the slag feeding pipe 1; the packing is a graphite packing; the packing 7 is wound around the slag feeding pipe 1; The packing 7 is fitted with the elliptical plate 4 and the floating sealing ring 5; a sealing pressure plate 8 is fitted on the side of the packing 7 opposite to the elliptical plate 4; the elliptical plate 4 is provided with a clamping bolt 9; the clamping bolt 9 passes through the sealing pressure plate 8 and the packing 7 in sequence; a sealing ring 11 on the outside of the floating sealing ring 5; the sealing ring 11 abuts against the pressure plate 6; and the two are pressed together by a penetrating threaded fastener; the sealing ring 11 abuts against the sealing ring 10 on the side opposite to the pressure plate 6; the inner side of the slag inlet 2 is threadedly connected to the spiral blade 12; the spiral blade 12 abuts against the sealing ring 10.

[0024] Although the present invention is described in detail by referring to the accompanying drawings and in combination with the preferred embodiments, the present invention is not limited thereto. Without departing from the spirit and essence of the present invention, a person skilled in the art may make various equivalent modifications or substitutions to the embodiments of the present invention, and these modifications or substitutions shall be within the scope of the present invention. Any person skilled in the art who is familiar with the present technical field may easily think of changes or substitutions within the technical scope disclosed in the present invention, and these shall be within the scope of protection of the present invention.

Claims

1. A slag cooler feed sealing device, comprising a slag feed pipe and a slag feed port, wherein the slag feed port is fixed on the side wall of the slag cooler, and the slag feed pipe passes through the slag feed port and extends into the slag cooler; an elliptical plate is sleeved on the portion of the slag feed pipe located outside the slag cooler; a floating sealing ring is sleeved on the outer periphery of the elliptical plate; a pressure plate is attached to the outer side of the floating sealing ring; and the characteristic is that: A packing is provided between the inner wall of the pressure plate and the slag inlet pipe, and the packing is wound on the slag inlet pipe; the packing is fitted with the elliptical plate and the floating sealing ring; a sealing pressure plate is fitted on the side of the packing opposite to the elliptical plate; the elliptical plate is provided with a clamping bolt; the clamping bolt passes through the sealing pressure plate and the packing in sequence.

2. The slag cooler feed sealing device according to claim 1, characterized in that: It also includes a second sealing ring arranged on the outside of the floating sealing ring; the second sealing ring abuts against the pressure plate; and the two are pressed tightly by a penetrating threaded fastener; the side of the second sealing ring opposite to the pressure plate abuts against the first sealing ring.

3. The slag cooler feed sealing device according to claim 2, characterized in that: The inner side of the slag inlet is threadedly connected with a spiral blade; the spiral blade is in contact with a sealing ring.

4. The slag cooler feed sealing device according to claim 1, characterized in that: The packing is graphite packing.

5. The slag cooler feed sealing device according to claim 1, characterized in that: The slag inlet pipe is provided with a connecting flange at one end thereof facing the slag cooler.

6. The slag cooler feed sealing device according to claim 1, characterized in that: The slag feeding pipe is arranged obliquely upward.

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