CN115095666A - Upper gas-liquid combined sealing device of circular cooler - Google Patents

Upper gas-liquid combined sealing device of circular cooler Download PDF

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Publication number
CN115095666A
CN115095666A CN202210855774.7A CN202210855774A CN115095666A CN 115095666 A CN115095666 A CN 115095666A CN 202210855774 A CN202210855774 A CN 202210855774A CN 115095666 A CN115095666 A CN 115095666A
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CN
China
Prior art keywords
liquid tank
plate
liquid
outer ring
inner ring
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Pending
Application number
CN202210855774.7A
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Chinese (zh)
Inventor
宋宇
相金东
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Northern Engineering and Technology Corp MCC
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Northern Engineering and Technology Corp MCC
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Application filed by Northern Engineering and Technology Corp MCC filed Critical Northern Engineering and Technology Corp MCC
Priority to CN202210855774.7A priority Critical patent/CN115095666A/en
Publication of CN115095666A publication Critical patent/CN115095666A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/40—Sealings between relatively-moving surfaces by means of fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D15/00—Handling or treating discharged material; Supports or receiving chambers therefor
    • F27D15/02—Cooling
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

The invention belongs to the technical field of ring cooling machines, and particularly relates to a gas-liquid combined sealing device on the upper part of a ring cooling machine. The high-pressure air can not only prevent hot waste gas in the smoke hood from contacting with the inner annular plate of the liquid tank, but also prevent tiny dust from entering the liquid tank to form sludge in the liquid tank.

Description

Upper gas-liquid combined sealing device of circular cooler
Technical Field
The invention belongs to the technical field of circular coolers, and particularly relates to a gas-liquid combined sealing device on the upper part of a circular cooler.
Background
The ring cooling machine is one of important equipment of sintering production technology, and is used for cooling high-temperature sinter, and the ring cooling machine is provided with a circular ring-shaped rotary body trolley, and the high-temperature sinter is uniformly distributed in an annular accommodating groove of the rotary trolley and runs around the center of the ring cooling machine along with the rotary body trolley, and cooling air blown by an air blower passes through the high-temperature sinter from the lower part of the rotary body trolley through an air box to exchange heat, so that the purpose of cooling the sinter is achieved by taking away heat through the cooling air, and for better recovering hot waste gas, sealing is performed between a baffle plate of the rotary body trolley and a smoke hood of the ring cooling machine. The liquid seal has better sealing effect than the traditional mechanical seal, and is widely used in the industry at present. The specific form is that a group of annular liquid tanks are arranged between a revolving body trolley breast board and an annular cold machine smoke cover, and liquid, usually water, is filled in the liquid tanks. However, in the operation process of the ring cooling machine, the high-temperature waste gas in the smoke hood can cause the annular plate in the liquid tank to deform seriously, and further can cause the welding part of the liquid tank to crack, so that the leakage phenomenon occurs. Meanwhile, fine bulk materials and dust can inevitably enter the sealed liquid tank, and sludge can be formed at the bottom of the tank after a period of time accumulation, so that the sludge is extremely difficult to clean, and the normal operation of the ring cooling machine can be seriously influenced due to untimely cleaning. At present, steel enterprises generally adopt a high-temperature resistant rubber plate or a steel wire brush to be additionally arranged between a smoke hood and the top of a trolley breast board to solve the problem of complaint, and because the sealing elements are in direct contact with the moving trolley breast board of the annular cooler, the resistance is increased, the energy consumption is increased, the abrasion of the sealing elements is serious, and the sealing elements need to be frequently replaced. The method can reduce the entering of bulk materials and dust into the liquid tank, but cannot solve the influence of high-temperature waste gas on the liquid tank, and needs to be further optimized in order to improve the utilization rate of the circular cooler equipment and reduce the cost.
Disclosure of Invention
The invention aims to provide a gas-liquid combined sealing device on the upper part of a ring cooling machine, which can effectively prevent high-temperature waste gas in a smoke hood of the ring cooling machine from contacting a liquid tank in the running process of the ring cooling machine, so that the welding part of the liquid tank is cracked, and the leakage phenomenon occurs.
The purpose of the invention is realized by the following technical scheme:
the invention discloses a gas-liquid combined sealing device at the upper part of a circular cooler, which is characterized by comprising a sealing liquid groove arranged between a trolley breast board of the circular cooler and a smoke hood, an inner ring sealing plate arranged on an inner ring plate of the smoke hood, an outer ring sealing plate arranged on an outer ring plate of the smoke hood, pipe brackets respectively arranged on the inner ring plate and the outer ring plate, a blowing device arranged on each pipe bracket, wherein the blowing device is connected with a blower through an air inlet pipeline, a pressure regulating valve is arranged at the air inlet of the air inlet pipeline,
the sealed flume comprises a first flume and a second flume, the first flume comprises a first flume inner ring plate, a first flume outer ring plate and a first flume bottom plate, the second flume comprises a second flume inner ring plate, a second flume outer ring plate and a second flume bottom plate,
each blowing device comprises a high-pressure gas pipeline, a plurality of nozzles connected at the bottom of the high-pressure gas pipeline,
the outer ring sealing plate is inserted into the first liquid tank, and the inner ring sealing plate is inserted into the second liquid tank.
The lower part of the nozzle is in a flat-mouth strip shape, and the angle of the high-pressure air blown out is 60-90 degrees.
The first liquid tank and the second liquid tank are connected with the bottom surface of the trolley fence of the annular cooler and rotate around the rotation center along with the trolley fence of the annular cooler of the sintering machine.
The high-pressure gas pipeline and the plurality of nozzles are made of stainless steel.
The invention has the advantages that:
(1) according to the gas-liquid combined sealing device on the upper part of the circular cooler, high-pressure wind can prevent hot waste gas in the smoke hood from contacting with the inner annular plate of the liquid tank, so that the problems that the liquid tank is deformed, a welding part is cracked, and the liquid tank leaks water are solved, and the high-pressure wind can prevent tiny dust from entering the inside of the liquid tank, so that sludge in the liquid tank is not formed, and the operation of the circular cooler is not influenced;
(2) according to the gas-liquid combined sealing device on the upper part of the circular cooler, the pipeline and the plurality of nozzles are made of stainless steel materials;
(3) according to the gas-liquid combined sealing device on the upper part of the ring cooling machine, part of gas flowing out of a blower of the ring cooling machine enters an air pipe through an air inlet pipeline and is sprayed out from a nozzle on the air pipe;
(4) according to the upper gas-liquid combined sealing device of the ring cooling machine, the width of the air outlet of the nozzle is 2-3mm, the length of the air outlet of the nozzle is 50mm, namely, gaps between the bottom of the smoke hood and the bottom plate of the liquid tank can be completely covered in the circumferential direction, and the gas consumption can be reduced;
(5) according to the gas-liquid combined sealing device on the upper part of the ring cooler, the pressure of hot waste gas in the smoke hood can be changed along with the cloth height of the ring cooler trolley, and the outlet of the pipeline is provided with the pressure regulating valve, so that the outlet pressure of a nozzle is greater than the pressure of the hot waste gas in the smoke hood;
(6) the gas-liquid combined sealing device at the upper part of the circular cooler has the advantages of low manufacturing cost, flexible disassembly and assembly and simple and convenient maintenance of the device.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a view a-a of fig. 1 of the present invention.
FIG. 3 is a schematic view of the nozzle of the present invention.
Fig. 4 is a view from direction B of fig. 3 according to the present invention.
Detailed Description
The following further describes the embodiments of the present invention with reference to the drawings.
As shown in fig. 1-4, the upper gas-liquid combined sealing device of the ring cooler of the invention is characterized by comprising a sealing liquid groove arranged between a trolley fence plate 5 of the ring cooler and a smoke hood 4, an inner ring sealing plate 9 arranged on an inner ring plate 41 of the smoke hood 4, an outer ring sealing plate 8 arranged on an outer ring plate 42 of the smoke hood 4, pipe brackets 11 respectively arranged on the inner ring plate 41 and the outer ring plate 42, a blowing device 10 arranged on each pipe bracket 11, wherein the blowing device 10 is connected with a blower 1 through an air inlet pipeline 2, a pressure regulating valve 3 is arranged at an air inlet of the air inlet pipeline 2,
the sealed liquid tank comprises a first liquid tank 6 and a second liquid tank 7, the first liquid tank 6 comprises a first liquid tank inner ring plate 61, a first liquid tank outer ring plate 63 and a first liquid tank bottom plate 62, the second liquid tank 7 comprises a second liquid tank inner ring plate 71, a second liquid tank outer ring plate 73 and a second liquid tank bottom plate 72,
each blowing device 10 comprises a high-pressure gas duct 101, a plurality of nozzles 102 connected to the bottom of this high-pressure gas duct 101,
the outer ring sealing plate 8 is inserted into the first liquid tank 6, and the inner ring sealing plate 9 is inserted into the second liquid tank 7.
The lower part of the nozzle 102 is in a flat-mouth strip shape, and the angle of the high-pressure air blown out is 60-90 degrees.
The first liquid tank 6 and the second liquid tank 7 are connected with the bottom surface of the circular cooler trolley sideboard 5 and rotate around the rotation center along with the circular cooler trolley sideboard 5 of the sintering machine.
The high-pressure gas pipeline 101 and the plurality of nozzles 102 are made of stainless steel.
As shown in fig. 1-3, the gas-liquid combined sealing device for the upper part of the circular cooler of the present invention comprises a sealing flume arranged between a trolley breast board 5 of the circular cooler and a smoke hood 4, and an inner ring sealing plate 9 and an outer ring sealing plate 8 arranged on the smoke hood 4, and is characterized in that the sealing flume comprises a first flume 6 and a second flume 7, wherein the first flume 6 is composed of a first flume inner ring board 61, a first flume outer ring board 63 and a first flume bottom board 62; the second liquid tank 7 consists of a second liquid tank inner ring plate 71, a second liquid tank outer ring plate 73 and a second liquid tank bottom plate 72, a pipe bracket 11 is arranged at the lower parts of the inner ring plate 41 and the outer ring plate 42 of the smoke hood 4, a high-pressure gas pipeline 101 is arranged on the pipe bracket 11, and a plurality of nozzles 102 are connected at the lower part of the high-pressure gas pipeline 101; the lower part of the nozzle 102 is in a flat-mouth strip shape, and the angle of the high-pressure air blown out is 60-90 degrees. The nozzles 102 are distributed to fully cover the gap between the bottom of the smoke hood 4 and the bottom plate of the liquid tank in the circumferential direction.
The first liquid tank 6 and the second liquid tank 7 are connected with the bottom surface of the trolley fence plate 5 of the circular cooler and rotate around the rotation center along with the trolley fence plate of the sintering machine.
The inner ring sealing plate 9 and the outer ring sealing plate 8 are respectively fixed on the outer walls of the inner ring plate and the outer ring plate of the smoke hood;
the blowing device is fixed on the inner walls of an inner ring plate 41 and an outer ring plate 42 of the smoke hood 4 through a pipe bracket 11;
the blowing device 10 consists of a high-pressure gas pipeline 101 and a plurality of nozzles 102, wherein the high-pressure gas pipeline 101 and the plurality of nozzles 102 are made of stainless steel; the nozzles 102 are installed at the bottom of the high-pressure gas pipeline 101, are uniformly arranged in the circumferential direction, and can completely cover the gap between the bottom of the smoke hood 4 and the bottom plate of the liquid tank in the circumferential direction. The lower part of the nozzle 102 is in a flat strip shape, and the angle of the high-pressure air blown out is 60-90 degrees.
The working principle of the invention is as follows: part of the gas from the blower 1 enters the high-pressure gas pipeline 101 through the gas inlet pipeline 2, and is sprayed out from the nozzle 102 at the lower part of the high-pressure gas pipeline 101 to form an air curtain to block the hot waste gas from contacting with the liquid tank. Because the hot waste gas pressure in the smoke hood 4 can change along with the cloth height of the circular cooler trolley, the pressure regulating valve 3 is arranged at the air inlet of the air inlet pipeline 2, and the outlet pressure of the nozzle 102 is larger than the hot waste gas pressure in the smoke hood 4. In addition, the inner ring sealing plate 9 is matched with the second liquid tank 7 filled with liquid to form sealing, the outer ring sealing plate 8 is matched with the first liquid tank 6 filled with liquid to form sealing, and the sealing between the smoke hood 4 and the trolley sideboard 5 of the ring cooling machine is realized through the matching of pressure airflow of the high-pressure gas pipeline 101 and the liquid sealing.
The gas-liquid combined sealing device at the upper part of the circular cooler has the advantages of low manufacturing cost, flexible assembly and disassembly, simple and convenient maintenance of the device, capability of preventing hot waste gas in the smoke hood from contacting with the inner annular plate of the liquid tank by high-pressure wind, no deformation of the liquid tank, cracking of a welding part and further water leakage of the liquid tank, capability of preventing tiny dust from entering the liquid tank by the high-pressure wind, and no influence on the operation of the circular cooler due to sludge formation in the liquid tank.

Claims (4)

1. A gas-liquid combined sealing device on the upper part of a ring cooler is characterized by comprising a sealing liquid tank arranged between a trolley fence plate of the ring cooler and a smoke hood, an inner ring sealing plate arranged on an inner ring plate of the smoke hood, an outer ring sealing plate arranged on an outer ring plate of the smoke hood, pipe brackets respectively arranged on the inner ring plate and the outer ring plate, and a blowing device arranged on each pipe bracket, wherein the blowing device is connected with an air blower through an air inlet pipeline, a pressure regulating valve is arranged at the air inlet of the air inlet pipeline,
the sealed liquid tank comprises a first liquid tank and a second liquid tank, the first liquid tank comprises a first liquid tank inner ring plate, a first liquid tank outer ring plate and a first liquid tank bottom plate, the second liquid tank comprises a second liquid tank inner ring plate, a second liquid tank outer ring plate and a second liquid tank bottom plate,
each blowing device comprises a high-pressure gas pipeline, a plurality of nozzles connected at the bottom of the high-pressure gas pipeline,
the outer ring sealing plate is inserted into the first liquid tank, and the inner ring sealing plate is inserted into the second liquid tank.
2. The upper gas-liquid combined sealing device of the circular cooler according to claim 1, wherein the lower part of the nozzle is in a flat strip shape, and the angle of the high-pressure air blown out is 60-90 degrees.
3. The upper gas-liquid combined sealing device of the circular cooler according to claim 1, wherein the first liquid tank and the second liquid tank are connected with the bottom surface of the circular cooler trolley breast board and rotate around the rotation center along with the circular cooler trolley breast board of the sintering machine.
4. The gas-liquid combined sealing device for the upper part of the circular cooler according to claim 1, wherein the high-pressure gas pipeline and the plurality of nozzles are made of stainless steel.
CN202210855774.7A 2022-07-21 2022-07-21 Upper gas-liquid combined sealing device of circular cooler Pending CN115095666A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210855774.7A CN115095666A (en) 2022-07-21 2022-07-21 Upper gas-liquid combined sealing device of circular cooler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210855774.7A CN115095666A (en) 2022-07-21 2022-07-21 Upper gas-liquid combined sealing device of circular cooler

Publications (1)

Publication Number Publication Date
CN115095666A true CN115095666A (en) 2022-09-23

Family

ID=83299348

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210855774.7A Pending CN115095666A (en) 2022-07-21 2022-07-21 Upper gas-liquid combined sealing device of circular cooler

Country Status (1)

Country Link
CN (1) CN115095666A (en)

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