CN219014990U

CN219014990U - Sealing device for end part of liquid tank at upper part of annular cooler

Info

Publication number: CN219014990U
Application number: CN202223168823.4U
Authority: CN
Inventors: 宋宇
Original assignee: Northern Engineering and Technology Corp MCC
Current assignee: Northern Engineering and Technology Corp MCC
Priority date: 2022-11-29
Filing date: 2022-11-29
Publication date: 2023-05-12
Anticipated expiration: 2032-11-29

Abstract

The utility model relates to an end sealing device of an upper liquid tank of a ring cooler, which comprises a trolley breast board and a sealing cover, wherein an outer liquid tank and an inner liquid tank are respectively arranged on the trolley breast board, an outer ring plugboard seat and an inner ring plugboard seat are arranged at the lower edge of the sealing cover, and an outer ring plugboard seat and an inner ring plugboard seat are respectively fixed at the lower edge of the outer ring plugboard seat and the inner ring plugboard seat, and are respectively inserted into the outer liquid tank and the inner liquid tank. The advantages are that: due to the adoption of the structure, the utility model does not generate smoke flow in the annular area, thereby avoiding fine bulk materials and dust from entering the sealed liquid tank to form sludge and improving the operation rate of the annular cooler.

Description

Sealing device for end part of liquid tank at upper part of annular cooler

Technical Field

The utility model relates to the field of ring coolers, in particular to an end sealing device for a liquid tank at the upper part of a ring cooler.

Background

The annular cooler is one of main equipment for iron making in steel works and is used for cooling hot sinter, and whether the cooling of the sinter reaches the standard or not directly influences the product quality of the steel works. In the working process of the annular cooler, cooling air is ensured to continuously and effectively pass through the material layer, high-efficiency cooling is completed, and the production efficiency is improved; the quality of the cooled high-temperature flue gas is ensured, and the high-quality high-temperature flue gas is provided for enterprises so as to utilize waste heat, thereby increasing the operation benefit; the good upper seal not only can ensure the quality of high-temperature flue gas, but also can prevent the high-temperature flue gas from escaping and the middle-low-temperature flue gas from diffusing, maintain good working condition environment and bring good social benefit for enterprises.

At present, the upper seal of the annular cooler mainly adopts liquid seal, and the upper seal consists of an annular liquid groove fixed on a trolley breast board and an annular plugboard fixed on an upper seal cover of the trolley. The annular liquid groove rotates around the center of the annular cooler along with the trolley baffle plate, and the annular inserting plate is fixed. The annular liquid bath is filled with liquid, typically water.

The upper seal cover of the annular cooler can be divided into a cooling area and a non-cooling area. The non-cooling area mainly comprises a feeding place and a discharging place, and in order to restrain dust emission, a dust removing pipeline is arranged at a sealing cover of the non-cooling area, and the dust removing pipeline sucks a large amount of dust-carrying flue gas into the dust remover through negative pressure. Therefore, the negative pressure in the hood is large. The cooling area is sealed and covered with a micro negative pressure; a pressure differential may occur between the cooling zone and the non-cooling zone.

The annular area enclosed by the insert plate and the inner wall of the sump is often referred to as an annular air duct. Inside the sealed enclosure, a partition is typically used to isolate the cooled area from the uncooled area. The smoke in the smoke hood is blocked and cannot circulate. The annular air channels are communicated, so that a large amount of flue gas circulates in the annular air channels. The section of the annular air duct is smaller, the flow speed of flue gas in the annular air duct is very fast, the flue gas can carry fine bulk materials and dust to enter the annular area, the fine bulk materials and dust contact water in the liquid tank to enter the sealed liquid tank, sludge is formed at the bottom of the liquid tank after a period of accumulation, the sludge is very difficult to clean, and the normal work of the annular cooler can be seriously influenced when the sludge is not cleaned in time.

Disclosure of Invention

The utility model aims to provide a sealing device for the end part of a water tank at the upper part of an annular cooler.

The utility model aims at realizing the following technical scheme:

the utility model relates to an end sealing device of a liquid tank at the upper part of a circular cooler, which comprises a trolley breast board and a sealing cover, wherein an outer liquid tank and an inner liquid tank are respectively arranged on the trolley breast board, an outer ring plugboard seat and an inner ring plugboard seat are respectively fixed at the lower edge of the sealing cover, an outer sealing plugboard and an inner sealing plugboard are respectively fixed at the lower edge of the outer ring plugboard seat and the inner ring plugboard seat, and the outer sealing plugboard and the inner sealing plugboard are respectively inserted into the outer liquid tank and the inner liquid tank, so that the outer sealing plugboard and the inner sealing plugboard respectively form an annular air flue with the inner wall of the outer liquid tank and the inner liquid tank; the mineral feeding end sealing cover partition plate and the discharge end sealing cover partition plate isolate a cooling area and a non-cooling area in the annular cooler sealing cover; the outer ring end sealing device and the inner ring end sealing device are arranged in the annular air duct at the end surfaces of the cooling area and the non-cooling area of the sealing cover, and isolate the pressure area and the non-pressure area of the annular air duct.

Preferably, the outer ring end sealing device comprises a sealing groove body, a pull rod, a nut, a spring, a push plate and a rubber plate, wherein one end of the sealing groove body is arranged on an outer ring plugboard at the joint end face of a cooling area and a non-cooling area, a round hole through which a pull rod passes is formed in the outer ring plugboard, the pull rod passes through the round hole of the outer ring plugboard, one end of the pull rod is fixed on the outer side of the outer ring plugboard through a bolt, the other end of the pull rod extends into the sealing groove body respectively, the spring is sleeved on the pull rod, the push plate is arranged in the sealing groove body, one end of the push plate is fixedly connected with the pull rod, the other end of the push plate is fixedly connected with the rubber plate, the other end of the rubber plate is propped against the inner side wall of the outer liquid groove 1, the structure of the inner ring end sealing device is the same as the outer ring end sealing device, and the other end of the rubber plate is propped against the inner side wall of the inner liquid groove in opposite direction.

Preferably, the thickness of the rubber plate is more than or equal to 20mm.

Preferably, the number of the pull rods, the springs and the nuts is not less than three.

The utility model has the advantages that: according to the sealing device for the end part of the liquid tank at the upper part of the annular cooler, the sealing cover is divided into the cooling area and the non-cooling area, the ore feeding end sealing cover partition plate and the discharging end sealing cover partition plate are arranged at the joint end face of the ore feeding end cooling area and the non-cooling area, and the annular area is partitioned at the cooling area and the non-cooling area, so that no smoke flow is generated in the annular area, and the smoke can be effectively blocked from carrying fine bulk materials and dust into the annular area, so that the fine bulk materials and dust are prevented from entering the sealing liquid tank to form sludge, and the operation rate of the annular cooler is greatly improved.

Drawings

Fig. 1 is a plan view of the present utility model.

Fig. 2 is a section A-A of fig. 1.

Fig. 3 is an enlarged view at M of fig. 1.

Fig. 4 is an enlarged view at N of fig. 1.

Detailed Description

The utility model is further described below with reference to the accompanying drawings.

As shown in fig. 1-4, the upper liquid tank end sealing device of the annular cooler comprises a trolley baffle plate and a sealing cover 3, wherein an outer liquid tank 1 and an inner liquid tank 2 are respectively arranged on the trolley baffle plate 8, an outer ring plug board seat 61 and an inner ring plug board seat 62 are respectively fixed on the lower edge of the sealing cover 3, an outer sealing plug board 101 and an inner sealing plug board 102 are respectively fixed on the lower edge of the outer ring plug board seat 61 and the lower edge of the inner ring plug board seat 62, the outer sealing plug board 101 and the inner sealing plug board 102 are respectively inserted into the outer liquid tank 1 and the inner liquid tank 2, and the outer sealing plug board 101 and the inner sealing plug board 102 respectively form an annular air duct with the inner wall of the outer liquid tank 1 and the inner liquid tank 2; the mineral feeding end sealing cover partition board 4 and the discharge end sealing cover partition board 5 isolate a cooling area and a non-cooling area inside the annular cooler sealing cover 3; the outer ring end seal 71 and the inner ring end seal 72 are mounted in the annular air duct sealing the end faces of the cooling zone and the non-cooling zone of the cover to isolate the pressure zone and the non-pressure zone of the annular air duct.

Preferably, the outer ring end sealing device 71 consists of a sealing groove body 711, a pull rod 714, a nut 713, a spring 715, a push plate 716 and a rubber plate 712. One end of the sealing groove body 711 is arranged on the outer ring plugboard 101 at the joint end surface of the cooling area and the non-cooling area, a round hole through which a pull rod 714 passes is formed in the outer ring plugboard 101, one end of the pull rod 714 passes through the round hole of the outer ring plugboard 101, the other end of the pull rod is fixed on the outer side of the outer ring plugboard 101 through a bolt, the other end of the pull rod is respectively extended into the sealing groove body 711, a spring 715 is sleeved on the pull rod 714, the push plate 716 is arranged in the sealing groove body 711, one end of the push plate 716 is fixedly connected with the pull rod 714, the other end of the push plate is fixedly connected with the rubber plate 712, and the number of the pull rod, the spring and the nuts is not less than three; the other end of the rubber plate 712 is abutted against the inner side wall of the outer liquid tank 1, the structure of the inner ring end sealing device 72 is the same as that of the outer ring end sealing device 71, and the other end of the rubber plate 712 is abutted against the inner side wall of the inner liquid tank 2 and is opposite in direction.

When the rubber plate is installed, the rubber plate 12 of the outer ring end sealing device 71 is adjusted to be propped against the inner side wall of the outer liquid tank 1 by rotating the nut 13, the rubber plate 12 of the inner ring end sealing device 72 is propped against the inner side wall of the inner liquid tank 2, and meanwhile, the push plate 16 compresses the spring 15, so that the spring 15 has a certain pretightening force and can be continuously compressed. When the trolley breast board 8 deflects in the radial direction, the outer liquid groove 1 and the inner liquid groove 2 move a certain distance in the radial direction, the rubber plates 12 on the two sides of the outer ring inserting plate 101 and the inner ring inserting plate 102 move along with the outer ring inserting plate, and the sealing performance is not influenced by the radial deformation of the trolley breast board 8.

The device has the advantages of simple structure, very compact appearance of the outer ring end sealing device 71 and the inner ring end sealing device 72, long service life of the rubber plate 12, reliable sealing effect and stable performance.

Claims

1. The sealing device comprises a trolley breast board and a sealing cover, wherein an outer liquid groove and an inner liquid groove are respectively arranged on the trolley breast board, an outer ring plugboard seat and an inner ring plugboard seat are respectively fixed on the lower edge of the sealing cover, an outer sealing plugboard and an inner sealing plugboard are respectively fixed on the lower edge of the outer ring plugboard seat and the lower edge of the inner ring plugboard seat, and the outer sealing plugboard and the inner sealing plugboard are respectively inserted into the outer liquid groove and the inner liquid groove, so that the outer sealing plugboard and the inner sealing plugboard respectively form an annular air channel with the inner wall of the outer liquid groove and the inner liquid groove; the mineral feeding end sealing cover partition plate and the discharge end sealing cover partition plate isolate a cooling area and a non-cooling area in the annular cooler sealing cover; the outer ring end sealing device and the inner ring end sealing device are arranged in the annular air duct at the end surfaces of the cooling area and the non-cooling area of the sealing cover, and isolate the pressure area and the non-pressure area of the annular air duct.

2. The sealing device for the end part of the liquid tank on the upper part of the annular cooler according to claim 1, wherein the sealing device for the end part of the outer ring consists of a sealing groove body, a pull rod, a nut, a spring, a push plate and a rubber plate, one end of the sealing groove body is arranged on an outer ring inserting plate at the joint end face of a cooling area and a non-cooling area, a round hole through which the pull rod passes is formed in the outer ring inserting plate, one end of the pull rod passes through the round hole of the outer ring inserting plate and is fixed on the outer side of the outer ring inserting plate through a bolt, the other end of the pull rod extends into the sealing groove body respectively, the spring is sleeved on the pull rod, the push plate is arranged in the sealing groove body, one end of the push plate is fixedly connected with the pull rod, the other end of the push plate is fixedly connected with the rubber plate, the other end of the rubber plate is propped against the inner side wall of the outer liquid tank, the structure of the sealing device for the end part of the inner ring is identical to the sealing device for the end part of the outer ring, and the other end of the rubber plate is propped against the inner side wall of the inner liquid tank, and the direction is opposite to the direction.

3. The sealing device for the end of the upper liquid tank of the annular cooler according to claim 2, wherein the thickness of the rubber plate is more than or equal to 20mm.

4. The sealing device for the end of the upper liquid tank of the annular cooler according to claim 2, wherein the number of the pull rod, the spring and the nut is not less than three.