WO2021196484A1 - 一种回转窑密封系统和回转窑设备 - Google Patents

一种回转窑密封系统和回转窑设备 Download PDF

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Publication number
WO2021196484A1
WO2021196484A1 PCT/CN2020/107522 CN2020107522W WO2021196484A1 WO 2021196484 A1 WO2021196484 A1 WO 2021196484A1 CN 2020107522 W CN2020107522 W CN 2020107522W WO 2021196484 A1 WO2021196484 A1 WO 2021196484A1
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WO
WIPO (PCT)
Prior art keywords
flange
housing
rotary kiln
water inlet
sealing system
Prior art date
Application number
PCT/CN2020/107522
Other languages
English (en)
French (fr)
Inventor
朱书成
王希彬
吕艳伍
李金峰
李仿
王永兴
Original Assignee
河南龙成煤高效技术应用有限公司
河北龙成煤综合利用有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 河南龙成煤高效技术应用有限公司, 河北龙成煤综合利用有限公司 filed Critical 河南龙成煤高效技术应用有限公司
Priority to JP2021568552A priority Critical patent/JP7387762B2/ja
Priority to AU2020440028A priority patent/AU2020440028B2/en
Priority to US17/619,410 priority patent/US20220381511A1/en
Priority to KR1020227001499A priority patent/KR102652304B1/ko
Priority to EP20929587.2A priority patent/EP3951300B1/en
Priority to CA3139231A priority patent/CA3139231C/en
Publication of WO2021196484A1 publication Critical patent/WO2021196484A1/zh
Priority to ZA2021/08968A priority patent/ZA202108968B/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
    • F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
    • F27B7/22—Rotary drums; Supports therefor
    • F27B7/24—Seals between rotary and stationary parts
    • 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
    • F16J15/50—Sealings between relatively-movable members, by means of a sealing without relatively-moving surfaces, e.g. fluid-tight sealings for transmitting motion through a wall
    • F16J15/52—Sealings between relatively-movable members, by means of a sealing without relatively-moving surfaces, e.g. fluid-tight sealings for transmitting motion through a wall by means of sealing bellows or diaphragms
    • 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
    • F27D9/00—Cooling of furnaces or of charges therein
    • 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
    • F27D9/00—Cooling of furnaces or of charges therein
    • F27D2009/0002—Cooling of furnaces
    • F27D2009/001—Cooling of furnaces the cooling medium being a fluid other than a gas
    • F27D2009/0013—Cooling of furnaces the cooling medium being a fluid other than a gas the fluid being water

Definitions

  • the present disclosure relates to the field of sealing technology, and in particular to a rotary kiln sealing system and rotary kiln equipment.
  • the blanking sealing mechanism between the blanking port and the receiving bin port not only satisfies the up and down, left and right swings, but also satisfies the sealing requirements.
  • the present disclosure provides a rotary kiln sealing system and rotary kiln equipment, which can solve the technical problem of how to make the blanking sealing mechanism swing up and down and left and right while meeting the sealing requirements.
  • the embodiment of the present disclosure provides a rotary kiln sealing system.
  • the rotary kiln sealing system includes a rotary kiln blanking cover blanking sealing system and a rotary kiln blanking cover air outlet sealing system, wherein the rotary kiln blanking cover blanking sealing system includes The discharging port, the discharging sealing mechanism and the receiving silo, the discharging port, the discharging sealing mechanism and the receiving silo are connected in sequence;
  • the gas outlet sealing system of the discharge hood of the rotary kiln includes an air outlet, a gas sealing mechanism, a gas pipe, an air outlet, The gas sealing mechanism and the gas pipeline are connected in sequence;
  • the rotary kiln sealing system includes a first shell and a second shell, the second shell is spaced around the first shell, and between the first shell and the second shell A first gap is left, one end of the first shell is fixedly connected with a first flange, and the second shell is fixedly connected with a second f
  • the first shell is far away from the first flange.
  • the other end is the free end located in the second flange.
  • the end of the second shell close to the first flange has a second gap with the first flange.
  • the second shell is provided with an elastic compensation joint. The ends are respectively sealed and connected with the first flange and the second flange, and the elastic compensation joint, the first flange and the second flange enclose a sealed cavity, so that the distance between the first flange and the second flange can be expanded and contracted;
  • the end surface of the first shell close to the second flange is fixedly connected with a first annular plate, the first shell, the first flange and the first annular plate form a cavity structure, and the second shell is close to the end surface of the first flange
  • a second annular plate is fixedly connected to the upper part, and the second shell, the second flange and the second annular plate form a cavity structure.
  • the up and down, left and right displacements can be set on the first flange and the second method.
  • the elastic compensation joint between the flanges realizes displacement buffering.
  • a first gap is left between the first shell and the second shell to ensure sufficient displacement space.
  • a second gap is provided between the end of the second housing close to the first flange and the first flange.
  • the displacement of the rotary kiln sealing mechanism is not limited when the rotary kiln rotates with the discharge hood, and the strict sealing of the sealing mechanism is met at the same time.
  • the sealing system of the rotary kiln includes the material sealing system of the material hood of the rotary kiln and the air sealing system of the material hood of the rotary kiln.
  • the blanking and sealing system of the feed hood of the rotary kiln includes a feeding port, a blanking sealing mechanism and a receiving silo.
  • the feeding port, the blanking sealing mechanism and the receiving silo are connected in sequence;
  • the gas port, the gas sealing mechanism, the gas pipeline, the gas outlet, the gas sealing mechanism and the gas pipeline are connected in sequence.
  • the first housing and the second housing are both provided with a water cooling cavity
  • the outer peripheral wall of the first housing is provided with a first water inlet and a first water outlet
  • the outer peripheral wall of the second housing is provided with a first water outlet.
  • Two water inlets and second water outlets, the first water inlet, the first water outlet, the second water inlet and the second water outlet penetrate the elastic compensation joint, and the first water inlet, the first water outlet, the second water inlet and The second water outlet is hermetically connected with the elastic compensation joint.
  • the positions of the first water inlet, the first water outlet, the second water inlet and the second water outlet on the outer peripheral wall of the first housing or the second housing can be adaptively adjusted according to actual requirements.
  • the first shell and the second shell are provided with a chamber containing a heat exchange medium.
  • the elastic compensation joint may be in contact with and received by the pyrolysis coal.
  • the radiant heat is almost absorbed by the two double-layer structure shells, so that the outer elastic compensation joint Materials can be better selected.
  • the cavity immediately outside the sealing system of the rotary kiln makes the elastic compensation section receive less internal radiant heat, and its material is relatively easy to choose.
  • the elastic compensation joint is an elastic rubber product or a metal corrugated compensation joint.
  • the elastic compensation joint is a metal corrugated compensation joint
  • the first water inlet, the first water outlet, the second water inlet, and the second water outlet are all composed of three sections of connecting pipes
  • the three-section connecting pipe includes a first metal pipe, a first hose, and a second metal pipe that are connected in sequence.
  • the first metal pipe in the first water inlet and the first water outlet is connected to the first metal pipe.
  • the first housing is connected, the first metal pipes in the second water inlet and the second water outlet are all connected to the second housing, the first water inlet, the first water outlet, and the first Both the two water inlets and the second metal hard pipe in the second water outlet are connected with the elastic compensation joint.
  • the aforementioned metal corrugated compensation joint is a metal expansion joint, made of stainless steel, and having a thickness of 1-2 mm.
  • the first hose has the function of compensating the position change of the sealing mechanism of the rotary kiln.
  • the first water inlet, the first water outlet, the second water inlet, and the second water outlet are all composed of two connecting pipes, so
  • the two sections of connecting pipes include a third metal hard pipe and a second hose that communicate with each other.
  • the first water inlet and the third metal hard pipe in the first water outlet are both connected to the first housing, so
  • the third metal hard pipes in the second water inlet and the second water outlet are both connected to the second housing, and the first water inlet, the first water outlet, the second water inlet and the first The second hoses in the two water outlets are all connected with the elastic compensation joint.
  • a first thermal insulation layer is provided in the first shell, and a second thermal insulation layer is provided in the second shell.
  • the two thermal insulation structures make the elastic expansion joints possible to contact and/or receive the radiant heat of the pyrolysis coal and are almost insulated by the two thermal insulation structures.
  • the outer peripheries of the first housing and the second housing are both provided with ventilation holes.
  • the number of vent holes is at least one, which can ensure that when the shell expands and contracts with heat, the gas existing in the insulation structure in the shell can enter and exit, so that the gas in the sealed shell will not cause the shell to expand and contract due to thermal expansion and contraction.
  • At least one ventilation gap is left at the connection between the first housing and the first flange, and at least one ventilation gap is left at the connection between the second housing and the second flange.
  • At least one ventilation gap is left at the connection between the first housing and the first annular plate; at least one ventilation gap is left at the connection between the second housing and the second annular plate.
  • the first housing is provided with a first insulation layer
  • the second housing is provided with a housing
  • the outer peripheral wall of the second housing is provided with a second water inlet and a second water outlet
  • the second water inlet and the second water inlet The water outlet penetrates the elastic compensation joint
  • the second water inlet and the second water outlet are both sealed and connected with the elastic compensation joint.
  • the second shell may be provided with a water cooling cavity, and the radiant heat in the shell can be taken away by circulating water, thereby meeting the requirements of heat insulation.
  • the above-mentioned first flange and the second flange are annular, the inner radius of the second flange is D, the inner radius of the first flange is B, and the inner radius of the first flange is B.
  • the thickness of the sidewall is C, the distance of the first gap is A, D>A+B+C.
  • the first shell and the second shell may collide, affecting the normal use of the sealing mechanism of the rotary kiln.
  • the first gap A takes the value of the maximum value of the maximum value of the rotary kiln blanking cover around the rotary kiln tail and the up and down, left and right jumps. If the value of A is too small, the collision damage between the first shell and the second shell may also be caused.
  • the thickness of the above-mentioned second annular plate is F, and the interval of the second gap is E, E>A+F.
  • the second housing, the second flange, and the second annular plate are welded to form a cavity structure.
  • a first annular plate is fixedly connected to the end surface of the first housing close to the second flange, and the first housing, the first flange and the first annular plate form a cavity structure.
  • the embodiment of the present disclosure also provides a rotary kiln equipment, which includes a rotary kiln kiln tail, a rotary kiln discharge cover, and a rotary kiln sealing system.
  • the kiln tail of the rotary kiln is connected with the discharge cover of the rotary kiln, and the discharge sealing system of the discharge cover of the rotary kiln and the gas discharge sealing system of the discharge cover of the rotary kiln are both installed on the discharge cover of the rotary kiln.
  • the up and down, left and right displacements can be compensated by the elasticity provided between the first flange and the second flange Section realizes displacement buffer.
  • the air outlet of the air outlet sealing system of the feed hood of the rotary kiln is opened above the feed hood.
  • the air outlet of the air outlet sealing system of the blanking cover of the rotary kiln is arranged on the end surface of the blanking cover.
  • the embodiment of the present disclosure also provides a rotary kiln equipment.
  • the rotary kiln blanking hood blanking sealing system includes a blanking opening, a blanking sealing mechanism, and a receiving silo opening that are connected in sequence, and the rotary kiln blanking hood discharges air.
  • the sealing system includes an air outlet and a gas pipeline, one end of the air outlet is connected to the receiving silo opening, the other end of the air outlet is connected to the gas pipeline, and the air outlet is configured to connect the receiving silo
  • the gas inside is guided to flow into the gas pipeline;
  • the blanking and sealing mechanism includes a first housing and a second housing.
  • the second housing is spatially arranged outside the first housing, and the first housing and the second housing are separated from each other.
  • a first gap is left between the first housing, a first flange is fixedly connected to one end of the first housing, a second flange is fixedly connected to the second housing in a direction away from the first flange, and the first flange is fixedly connected to the second housing.
  • the other end of a shell away from the first flange is a free end located in the second flange, and the end of the second shell close to the first flange is left with a second
  • the second housing is provided with an elastic compensation joint, and two ends of the elastic compensation joint are respectively connected to the first flange and the second flange in a sealed manner.
  • the elastic compensation joint, the first The flange and the second flange enclose a sealed cavity, so that the distance between the first flange and the second flange can be extended and contracted;
  • a first annular plate is fixedly connected to the end surface of the first housing close to the second flange, and the first housing, the first flange and the first annular plate form a cavity structure, so A second annular plate is fixedly connected to the end surface of the second housing close to the first flange, and the second housing, the second flange and the second annular plate form a cavity structure.
  • the gas and solid materials pass through the feeding system of the rotary kiln, the gas is separated in the receiving silo.
  • the beneficial effects of the embodiments of the present disclosure include, for example:
  • the embodiments of the present disclosure provide a rotary kiln sealing system and rotary kiln equipment.
  • the strict sealing of the exterior of the rotary kiln sealing system is realized by arranging a first shell, a second shell and an elastic compensation joint. There is enough movement adjustment range left and right, so that when the rotary kiln sealing system is installed on the discharge hood, the rotation with the rotary kiln will not be restricted.
  • the elastic compensation section realizes the compensation of the swing displacement.
  • the double-layer shell structure can absorb the radiant heat of the pyrolysis coal, making the material of the external sealing elastic compensation joint easier to choose and has a longer service life.
  • the structure provided by the embodiment of the present disclosure also avoids that the external elastic compensation section is exposed to radiant heat and the service life is shortened. Therefore, the rotary kiln equipment provided by the embodiments of the present disclosure can not only realize the up and down and left and right swings, but also meet the sealing requirements.
  • Figure 1 is a general schematic diagram of the first type of rotary kiln equipment provided by the embodiments of the disclosure
  • Fig. 2 is an internal schematic diagram of the first material blanking sealing mechanism provided by an embodiment of the present disclosure
  • Figure 3 is an internal schematic diagram of the first gas sealing mechanism provided by an embodiment of the present disclosure.
  • FIG. 4 is an internal schematic diagram of a second material blanking and sealing mechanism provided by an embodiment of the disclosure.
  • Figure 5 is an internal schematic diagram of a second type of gas sealing mechanism provided by an embodiment of the disclosure.
  • Figure 6 is a general schematic diagram of a second type of rotary kiln equipment provided by an embodiment of the present disclosure
  • Fig. 7 is an internal schematic diagram of a third gas sealing mechanism provided by an embodiment of the disclosure.
  • Figure 8 is an internal schematic diagram of a fourth type of gas sealing mechanism provided by an embodiment of the disclosure.
  • Figure 9 is an internal schematic diagram of a fifth gas sealing mechanism provided by an embodiment of the disclosure.
  • FIG. 10 is an internal schematic diagram of a third material blanking and sealing mechanism provided by an embodiment of the disclosure.
  • FIG. 11 is an internal schematic diagram of a fourth type of blanking and sealing mechanism provided by an embodiment of the disclosure.
  • Fig. 12 is an internal schematic diagram of a fifth material blanking sealing mechanism provided by an embodiment of the disclosure.
  • Fig. 13 is a general schematic diagram of the rotary kiln equipment provided in the third embodiment of the disclosure.
  • Icon 1-Rotary kiln tail; 2-Rotary kiln blanking cover; 3-Rotary kiln blanking cover blanking sealing system; 4-Rotary kiln blanking cover air sealing system; 5-Rotary kiln sealing system; 21-Horizontal Cylinder; 22-end face; 31-discharging port; 32-discharging sealing mechanism; 33-receiving silo port; 34-discharging silo; 3211-first flange; 3221-second flange; 3212-th A shell; 32121-overflow pipe; 3213-first annular plate; 3214-first water inlet; 3215-first water outlet; 3222-second shell; 3223-second annular plate; 3224-second inlet Nozzle; 3225-Second water outlet; 323-Elastic compensation section; 41-Air outlet; 42-Gas sealing mechanism; 43-Gas pipeline.
  • horizontal does not mean that the component is required to be absolutely horizontal or overhanging, but may be slightly inclined.
  • horizontal only means that its direction is more horizontal than “vertical”, and it does not mean that the structure must be completely horizontal, but can be slightly inclined.
  • this embodiment provides a rotary kiln equipment, which includes a rotary kiln kiln tail 1, a rotary kiln lower hood 2 and a rotary kiln sealing system 5.
  • the rotary kiln sealing system 5 includes a rotary kiln blanking hood air outlet sealing system 4 and a rotary kiln blanking hood blanking sealing system 3.
  • the gas outlet uses the rotary kiln blanking hood gas outlet sealing system 4, and the solid material uses the rotary kiln blanking hood blanking sealing system 3.
  • the gas outlet sealing system 4 of the rotary kiln blanking hood is arranged at the top of the rotary kiln blanking cover 2, and the rotary kiln blanking hood blanking sealing system 3 is arranged at the bottom of the rotary kiln blanking cover 2.
  • the feed hood 2 of the rotary kiln is composed of a transverse cylinder 21 and an end surface 22, and the transverse cylinder 21 and the end surface 22 are fixedly welded.
  • the material cover 2 can jump up and down with the rotation of the rotary kiln tail 1, the maximum amplitude of the jump is A, and A is less than 50mm.
  • the blanking sealing system 3 of the blanking hood of the rotary kiln includes a blanking port 31, a blanking sealing mechanism 32, and a receiving bin port 33.
  • the inner cavity is penetrated with the inner cavity of the transverse cylinder 21, and the other end of the blanking port 31 is connected to the receiving bin port 33 through a blanking sealing mechanism 32.
  • the blanking port 31, the blanking sealing mechanism 32, and the receiving bin port 33 are connected to each other by a flange.
  • materials When in use, materials can be delivered into the material-discharging sealing mechanism 32 from the material-discharging port 31, and discharged from the material-receiving bin port 33.
  • the blanking sealing mechanism 32 includes a first housing 3212 and a second housing 3222.
  • the second housing 3222 is spatially arranged outside the first housing 3212, and the elastic compensation section 323 Located outside the second housing 3222, one end of the first housing 3212 is fixedly connected with a first flange 3211, and the other end of the first housing 3212 away from the first flange 3211 is a free end located in the second flange 3221 The free end can move up and down along the length direction of the first housing 3212, and can also move left and right in the first gap.
  • the second housing 3222 is fixedly connected to the second flange 3221 in the direction away from the first flange 3211, and the two ends of the elastic compensation joint 323 are respectively connected to the first flange 3211 and the second flange 3221 in a sealing manner, so that the The distance between a flange 3211 and a second flange 3221 is freely stretchable, a first gap is left between the first housing 3212 and the second housing 3222, and the end of the second housing 3222 close to the first flange 3211 is connected to the A flange 3211 leaves a second gap.
  • the distance of the first gap is set to A.
  • the maximum value of the first gap is the maximum distance between the outer wall of the first housing 3212 and the inner wall of the second housing 3222.
  • the inner circle diameter of the second flange 3221 is larger than the inner circle diameter of the first flange 3211, the inner circle radius value of the first flange 3211 is B, and the first housing is arranged along the lower end surface of the inner circle of the first flange 3211 3212, extend down to the end surface of the second flange 3221, and seal and weld the first ring plate 3213 on the lower end surface of the first housing 3212, the first housing 3212, the first flange 3211 and the first ring plate 3213 are formed Welding and sealing structure, the thickness of the side wall of the first shell 3212 is C, and the radius of the inner circle of the second flange 3221 is D>A+B+C.
  • a second shell 3222 is arranged along the inner circle of the second flange 3221, extending upward to the distance (second gap) from the lower end surface of the first flange as E, and the second shell 3222 is sealed and welded to the upper end surface of the second flange 3222.
  • the thickness of the annular plate 3223, the second annular plate 3223 is F, E>A+F.
  • the second housing 3222, the second flange 3221 and the second annular plate 3223 form a welded sealing structure.
  • the outer peripheral wall of the first housing 3212 is provided with a first water inlet 3214 and a first water outlet 3215, and the first water inlet 3214 is in communication with the first water outlet 3215.
  • the outer peripheral wall of the second housing 3222 is provided with a second water inlet 3224 and a second water inlet 3224. There are two water outlets 3225, and the second water inlet 3224 and the second water outlet 3225 are in communication.
  • the first water inlet 3214, the first water outlet 3215, the second water inlet 3224, and the second water outlet 3225 all penetrate through the elastic compensation joint 323.
  • an elastic compensation section 323 is provided on the outer periphery of the second housing 3222.
  • the upper and lower ends of the elastic compensation section 323 are connected to the first flange 3211 and the second flange respectively. 3221 sealed connection.
  • the elastic compensation joint 323, the first flange 3211 and the second flange 3221 are enclosed to form a sealed cavity.
  • the material of the elastic compensation section 323 is a metal corrugated compensation section.
  • the material of the elastic compensation section 323 may also be a rubber product, as long as the elastic compensation function is satisfied, it is within the protection scope of the present disclosure.
  • the first water inlet 3214 and the first water outlet 3215 are both provided on the top of the first housing 3212, and the second water inlet 3224 and the second water outlet 3225 are both provided on the second housing The top of the body 3222.
  • the heat exchange medium water is used to reduce the temperature of the materials in the sealing mechanism to reduce the amount of heat radiation released to the outside.
  • the first water inlet 3214, the first water outlet 3215, the second water inlet 3224, and the second water outlet 3225 are all composed of three sections of connecting pipes.
  • the three-section connecting pipe includes a first metal hard pipe, a first hose, and a second metal hard pipe that are connected in sequence.
  • the first metal hard pipe of the first water inlet 3214 and the first water outlet 3215 and the first housing 3212 Connected, the first metal pipe in the second water inlet 3224 and the second water outlet 3225 is connected to the second housing 3222, the first water inlet 3214, the first water outlet 3215, the second water inlet 3224 and the second water outlet
  • the second metal hard pipes in the 3225 are all connected with the elastic compensation joint 323.
  • the gas outlet sealing system 4 of the rotary kiln blanking hood includes an air outlet 41, a gas sealing mechanism 42 and a gas pipe 43 that are connected in sequence, and the inner cavity of the gas outlet 41 is connected to the top of the rotary kiln blanking hood 2.
  • the gas is led out from the top of the lower hood 2 of the rotary kiln, passes through the gas sealing mechanism 42, and is led out from the gas pipe 43.
  • the gas pipeline 43 may be connected with a gas collection device or a purification device.
  • FIG. 3 the structure of the gas sealing mechanism 42 is shown in FIG. 3, and the gas sealing mechanism 42 is flanged to the gas outlet 41 of FIG. 1 along the direction indicated by the X arrow in FIG.
  • the first flange 3211 is connected with the air outlet 41 in FIG. 1.
  • the gas sealing mechanism 42 includes a first housing 3212 and a second housing 3222.
  • the second housing 3222 is spatially arranged outside the first housing 3212, and the elastic compensation joint 323 is located outside the second housing 3222 .
  • the bottom end of the first shell 3212 is fixedly connected with a first flange 3211, and the second shell 3222 is fixedly connected with a second flange 3221 at the top end.
  • the flange 3221 is hermetically connected so that the distance between the first flange 3211 and the second flange 3221 can be expanded and contracted freely.
  • the lower part of the first housing 3212 is provided with a first water inlet 3214, and water enters the first housing 3212 from the first water inlet 3214.
  • An overflow pipe 32121 is embedded in the first housing 3212.
  • the overflow pipe 32121 is L-shaped. One end of the overflow pipe 32121 extends to the top of the chamber of the first housing 3212.
  • the first water outlet 3215 outside the housing 3212 communicates with each other.
  • the cooling water When in use, the cooling water enters the chamber of the first housing 3212 from the first water inlet 3214 below the first housing 3212 and gradually rises. When the liquid level of the cooling water rises to the inlet of the overflow pipe 32121 When the height is higher, the water flows into the overflow pipe 32121 and flows out from the first water outlet 3215 below the first housing 3212. In this way, the heat exchange of cooling and insulation is realized.
  • the second housing 3222 of the gas sealing mechanism 42 is also provided with a water cooling cavity.
  • the second housing 3222 is provided with a second water inlet 3224 and a second water outlet 3225 on opposite sides of the second housing 3222.
  • the gas sealing mechanism 42 The second water inlet 3224 and the second water outlet 3225 are both disposed on the upper part of the second housing 3222. When in use, water enters from the second water inlet 3224 on the left side of the second housing 3222 in FIG.
  • the radiant heat of materials and coal gas is absorbed by the double-layer water-cooled shell structure in Figs. 2 and 3.
  • the material of the elastic compensation section 323 of the gas sealing mechanism 42 and the blanking sealing mechanism 32 are both elastic rubber products; and in Figures 2 and 3, the gas sealing The material of the elastic compensation joint 323 of the mechanism 42 and the blanking sealing mechanism 32 are both metal corrugated compensation joints.
  • the difference between the blanking sealing mechanism 32 shown in FIG. 4 and the blanking sealing mechanism 32 shown in FIG. 2 lies in: the second water inlet 3224 of the blanking sealing mechanism 32 Set at the bottom of the second housing 3222, the second water outlet 3225 of the blanking sealing mechanism 32 is set at the top of the second housing 3222; and in FIG. 2, the second water inlet 3224 and the second inlet 3224 of the blanking sealing mechanism 32 are The two water outlets 3225 are both arranged on the top of the second housing 3222.
  • the first water inlet 3214, the first water outlet 3215, the second water inlet 3224, and the second water outlet 3225 of the blanking sealing mechanism 32 are all composed of two connecting pipes.
  • the two-section connecting pipe includes a third metal hard pipe and a second hose that are connected to each other.
  • the third metal hard pipe of the first water inlet 3214 and the first water outlet 3215 is connected to the first housing 3212, and the second water inlet
  • the third metal pipes in the 3224 and the second water outlet 3225 are connected to the second housing 3222, and the second soft pipe in the first water inlet 3214, the first water outlet 3215, the second water inlet 3224 and the second water outlet 3225
  • the pipes pass through the elastic compensation section 323 and are connected to the elastic compensation section 323 in a sealed manner.
  • the second hose has the function of compensating the position change of the feeding mechanism.
  • the difference between the gas sealing mechanism 42 shown in FIG. 5 and the gas sealing mechanism 42 shown in FIG. 3 is that the second water inlet 3224 of the second housing 3222 of the gas sealing mechanism 42 is provided at the bottom of the second housing 3222.
  • the difference between the rotary kiln equipment shown in FIG. 6 and the rotary kiln equipment shown in FIG. The end face of the kiln blanking hood 2, the blanking sealing system 3 of the rotary kiln blanking cover is located at the bottom end of the rotary kiln blanking cover 2, and the rotary kiln blanking cover air outlet sealing system 4 in Figure 1 is all located in the rotary kiln blanking cover 2 top.
  • FIG. 7 The difference between the gas sealing mechanism 42 in FIG. 7 and the gas sealing mechanism 42 in FIG. 3 is that the double-layer shell does not contain the first water inlet 3214 and the first water outlet. 3215, the second water inlet 3224 and the second water outlet 3225.
  • An insulation layer is arranged in the double-layer shell. Specifically, a first heat preservation layer is provided in the first housing 3212, and a second heat preservation layer is provided in the second housing 3222.
  • vent gap at the welded connection with the first flange 3211 and the first annular plate 3213, the second housing 3222 and the second flange 3221 and the second annular plate 3223 Form a welded connection structure and leave at least one air-permeable gap.
  • the first shell 3212 of the gas sealing mechanism 42 has two vents on the outer shell
  • the second shell 3222 has two vents on the outer shell
  • the first housing 3212 of the gas sealing mechanism 42 is provided with a first thermal insulation layer, and the structure of the first housing 3212 is the same as the structure of the first housing 3212 in FIG. 7.
  • a water cooling cavity is provided in the second housing 3222, and a second water inlet 3224 and a second water outlet 3225 are respectively provided on both sides of the second housing 3222.
  • the second water inlet 3224 and the second water outlet 3225 are both provided on the top of the second housing 3222.
  • the gas sealing mechanism 42 shown in FIG. 9 is different from the gas sealing mechanism 42 in FIG. 8 in that, in FIG. 8, the second water inlet 3224 of the second housing 3222 is provided in the second housing. Below the body 3222.
  • the blanking sealing mechanism 32 in FIG. 10 includes a rotary kiln tail 1, a rotary kiln blanking cover 2 and a rotary kiln sealing system 5.
  • the rotary kiln sealing system 5 includes a rotary kiln blanking hood air outlet sealing system 4 and a rotary kiln blanking hood blanking sealing system 3.
  • the blanking sealing system 3 of the blanking hood of the rotary kiln includes a blanking opening 31, a blanking sealing mechanism 32 and a receiving silo opening 33.
  • the structure of the blanking sealing mechanism 32 is shown with reference to FIG. 10.
  • a first thermal insulation layer is provided in the first shell 3212, a cold cavity without water, a first water inlet 3214, and a first water outlet 3215.
  • the gas outlet sealing system 4 of the lower material cover of the rotary kiln includes a gas outlet 41, a gas sealing mechanism 42 and a gas pipe 43 which are connected in sequence.
  • the structure of the gas sealing mechanism 42 is shown in FIG. 3 of Embodiment 1.
  • the gas sealing mechanism 42 is flanged to the gas outlet 41 of FIG. 1 along the direction indicated by the X arrow in FIG.
  • a flange 3211 is connected with the air outlet 41 in FIG. 1.
  • the second water inlet 3224 outside the second housing 3222 of the blanking sealing mechanism 32 shown in FIG. 11 is provided at the lower part of the second housing 3222, and the second water outlet 3225 is provided at the second The upper part of the housing 3222.
  • the structure of the blanking sealing mechanism 32 in FIG. 12 is different from that of the blanking sealing mechanism in FIG. 10 in that the second housing 3222 is filled with a second insulation layer, and the second housing A vent hole (not shown in the figure) is provided on the outside of the 3222.
  • Fig. 13 is different from Fig. 1 in that the discharge hood air sealing system 4 of the rotary kiln in Fig. 1 is on the top of the rotary kiln discharge hood 2, and the discharge hood sealing system 3 of the rotary kiln is At the bottom of the feed hood 2 of the rotary kiln; and the air outlet sealing system 4 of the feed hood of the rotary kiln in FIG. 13 and the feed sealing system 3 of the feed hood of the rotary kiln share the feed sealing mechanism 32.
  • a lower silo 34 is fixedly connected to the bottom of the receiving silo opening 33, and an air outlet 41 is opened beside the lower silo 34, and the air outlet 41 is in communication with a gas pipeline 43.
  • the flue gas and materials enter the lower silo 34 from the blanking sealing mechanism 32 at the same time, and the gas is separated and discharged from the air outlet 41 on the top of the lower silo 34.
  • the present disclosure provides a rotary kiln sealing system and rotary kiln equipment, which can not only realize the swing in different directions, but also meet the sealing requirements.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
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Abstract

一种回转窑密封系统和回转窑设备，涉及密封技术领域。回转窑密封系统包括第一壳体（3212）和第二壳体（3222），第二壳体（3222）空间上环设于第一壳体（3212）外，且第一壳体（3212）与第二壳体（3222）之间留有第一间隙，第二壳体（3222）外设置有弹性补偿节（323）。

Description

一种回转窑密封系统和回转窑设备
相关申请的交叉引用
本公开要求于2020年04月01日提交中国专利局的申请号为2020102530332、名称为“一种回转窑密封系统和回转窑设备”的中国专利申请的优先权，其全部内容通过引用结合在本公开中。
技术领域
本公开涉及密封技术领域，具体而言，涉及一种回转窑密封系统和回转窑设备。
背景技术
目前，回转窑往往在启动开始时，轴线的直线度是最差的，回转窑的跳动也最大，但随着回转窑长时间运行，直线度将越来越趋于一条直线，回转窑的跳动会越来越小，但始终有跳动现象存在，回转窑下料罩跟随回转窑的转动而出现上下左右摆动，下料口随下料罩的上下左右摆动而摆动，对于煤或油页岩或生物质中低温热解而言，煤气既有毒性又有重大安全性问题，这就需要严格意义上的密封，不仅要求下料罩与回转窑窑尾之间严格密封，还要求下料罩的下料口与承接料仓口之间的下料密封机构在满足上下左右的摆动的同时，又能满足密封的需求。
发明内容
本公开提供了一种回转窑密封系统和回转窑设备，其能够解决如何在使下料密封机构在满足上下左右摆动的同时，又能满足密封需求的技术问题。
本公开的实施例可以这样实现：
本公开实施例提供了一种回转窑密封系统，该回转窑密封系统包括回转窑下料罩下料密封系统和回转窑下料罩出气密封系统，其中，回转窑下料罩下料密封系统包括下料口、下料密封机构和承接料仓，下料口、下料密封机构和承接料仓依次连通；回转窑下料罩出气密封系统包括出气口、煤气密封机构、煤 气管道，出气口、煤气密封机构和煤气管道依次连通；回转窑密封系统包括第一壳体和第二壳体，第二壳体空间上环设于第一壳体外，且第一壳体与第二壳体之间留有第一间隙，第一壳体一端固定连接有第一法兰，第二壳体在远离第一法兰的方向上固定连接有第二法兰，第一壳体远离第一法兰的另一端为位于第二法兰内的自由端，第二壳体靠近第一法兰的一端与第一法兰留有第二间隙，第二壳体外设置有弹性补偿节，弹性补偿节的两端分别与第一法兰和第二法兰密封连接，弹性补偿节、第一法兰以及第二法兰围成密封腔，以使第一法兰与第二法兰的间距能伸缩；
第一壳体靠近第二法兰的端面上固定连接有第一环形板，第一壳体、第一法兰以及第一环形板形成腔体结构，第二壳体靠近第一法兰的端面上固定连接有第二环形板，第二壳体、第二法兰以及第二环形板形成腔体结构。
当回转窑下料罩随回转窑转动而发生上下左右的位移时，通过连接回转窑密封系统，可以对回转窑密封系统的位移进行补偿，同时又能保证下料系统的严格密封。
具体地，当回转窑下料罩随回转窑转动而发生上下左右的位移时，通过连接本公开实施例提供的回转窑密封系统，上下左右的位移可以通过设置于第一法兰和第二法兰间的弹性补偿节实现位移缓冲，为防止第一壳体与第二壳体之间发生碰撞，在第一壳体与第二壳体之间留有第一间隙，以保证存在足够的位移空间。此外，为了防止第二壳体的端面与第一法兰发生之间发生接触碰撞，第二壳体靠近第一法兰的一端与第一法兰之间设置有第二间隙。
通过设置双层壳体(第一壳体与第二壳体)和弹性补偿节，使得回转窑密封机构随下料罩绕回转窑转动时，位移不受到限制，同时满足密封机构的严格密封。
回转窑密封系统包括回转窑下料罩下料密封系统和回转窑下料罩出气密封系统。其中，回转窑下料罩下料密封系统包括下料口、下料密封机构和承接料仓，下料口、下料密封机构和承接料仓依次连通；回转窑下料罩出气密封系统包括出气口、煤气密封机构、煤气管道，出气口、煤气密封机构和煤气管道依次连通。
在本公开可选的实施方式中，第一壳体和第二壳体内均设置有水冷腔，第一壳体外周壁设置有第一进水口和第一出水口，第二壳体外周壁设置有第二进水口和第二出水口，第一进水口、第一出水口、第二进水口和第二出水口贯穿于弹性补偿节，且第一进水口、第一出水口、第二进水口以及第二出水口与弹性补偿节密封连接。
第一进水口、第一出水口、第二进水口以及第二出水口在第一壳体或第二壳体的外周壁的位置可以根据实际需求进行自适应调整。
第一壳体和第二壳体内设有容纳换热介质的腔室。通过两道双层结构壳体(第一壳体和第二壳体)，使弹性补偿节可能接触和受到热解煤辐射热几乎被两道双层结构壳体吸收，使外部的弹性补偿节材料可以更好地选择。
此外，紧邻回转窑密封系统外部的腔体使得弹性补偿节受到内部的辐射热较小，其材料相对容易选择。
弹性补偿节为弹性橡胶制品或金属波纹补偿节。
在本公开可选的实施方式中，上述弹性补偿节为金属波纹补偿节时，所述第一进水口、第一出水口、第二进水口和第二出水口均由三段连接管构成，所述三段连接管包括依次连通的第一金属硬管、第一软管以及第二金属硬管，所述第一进水口和所述第一出水口中的第一金属硬管均与所述第一壳体连接，所述第二进水口和第二出水口中的第一金属硬管均与所述第二壳体连接，所述第一进水口、所述第一出水口、所述第二进水口以及所述第二出水口中的第二金属硬管均与所述弹性补偿节连接。
在本公开可选的实施方式中，上述金属波纹补偿节为金属膨胀节，材质为不锈钢，厚度为1-2mm。
第一软管具有补偿回转窑密封机构位置变化的功能。
在本公开可选的实施方式中，上述弹性补偿节为弹性橡胶制品时，所述第一进水口、第一出水口、第二进水口和第二出水口均由两段连接管构成，所述两段连接管包括相互连通的第三金属硬管和第二软管，所述第一进水口和所述第一出水口中的第三金属硬管均与所述第一壳体连接，所述第二进水口和第二出水口中的第三金属硬管均与所述第二壳体连接，所述第一进水口、所述第一出水口、所述第二进水口以及所述第二出水口中的第二软管均与所述弹性补偿节连接。
在其他实施方式中，第一壳体内设置有第一保温层，第二壳体内设置有第二保温层。两道保温结构，使弹性伸缩节可能接触和/或受到热解煤辐射热几乎被两道保温结构隔热。
在其中一种实施方式中，第一壳体和第二壳体的外周均开设有透气孔。透气孔的数目至少为一个，这样可以保证壳体内在热胀冷缩的情况下，壳体内保温结构存在的气体可以进出，不至于因密闭壳体内存在气体，导致壳体热胀冷缩变形。
在其中一种实施方式中，第一壳体与第一法兰的连接处至少留有一处透气缝隙，第二壳体与第二法兰的连接处至少留有一处透气缝隙。
在其中一种实施方式中，第一壳体与第一环形板的连接处至少留有一处透气缝隙；第二壳体与第二环形板的连接处至少留有一处透气缝隙。
在其他实施方式中，第一壳体内设置有第一保温层，第二壳体内设置有壳体，第二壳体外周壁设置有第二进水口和第二出水口，第二进水口和第二出水口贯穿弹性补偿节，且第二进水口和第二出水口均与弹性补偿节密封连接。
第二壳体可以设置有水冷腔，通过循环水以带走壳体内的辐射热，从而满足隔热的要求。
在本公开可选的实施方式中，上述第一法兰和第二法兰呈环形，第二法兰的内圆半径为D，第一法兰的内圆半径为B，第一法兰的侧壁厚度为C，第一间隙的间距为A，D>A+B+C。
若第二法兰的内圆半径D<A+B+C，则第一壳体与第二壳体可能发生碰撞，影响回转窑密封机构的正常使用。
(第一间隙)A的取值为回转窑下料罩围绕回转窑窑尾的回转而上下左右跳动最大值。A的取值过小也会造成第一壳体与第二壳体的碰撞损坏。
在本公开可选的实施方式中，上述第二环形板的厚度为F，第二间隙的间距为E，E>A+F。
在本公开可选的实施方式中，上述第二壳体、第二法兰以及第二环形板通过焊接形成腔体结构。
在本公开可选的实施方式中，上述第一壳体靠近第二法兰的端面上固定连接有第一环形板，第一壳体、第一法兰以及第一环形板形成腔体结构。
本公开实施例还提供一种回转窑设备，其包括回转窑窑尾、回转窑下料罩和回转窑密封系统。所述回转窑窑尾与所述回转窑下料罩连接，所述回转窑下料罩下料密封系统和所述回转窑下料罩出气密封系统均安装在所述回转窑下料罩上。当下料密封系统随回转窑转动而发生上下左右的位移时，通过连接本公开实施例提供的回转窑密封系统，上下左右的位移可以通过设置于第一法兰和第二法兰间的弹性补偿节实现位移缓冲。
回转窑下料罩出气密封系统的出气口开设于下料罩的上方。
在其他实施方式中，回转窑下料罩出气密封系统的出气口设置在下料罩的端面。
本公开实施例还提供了一种回转窑设备，所述回转窑下料罩下料密封系统包括依次连通的下料口、下料密封机构和承接料仓口，所述回转窑下料罩出气密封系统包括出气口和煤气管道，所述出气口的一端与所述承接料仓口连通，所述出气口的另一端与所述煤气管道连通，所述出气口配置成将所述承接料仓内的气体引导流入所述煤气管道内；
所述下料密封机构包括第一壳体和第二壳体，所述第二壳体空间上环设于所述第一壳体外，且所述第一壳体与所述第二壳体之间留有第一间隙，所述第一壳体一端固定连接有第一法兰，所述第二壳体在远离所述第一法兰的方向上固定连接有第二法兰，所述第一壳体远离所述第一法兰的另一端为位于所述第二法兰内的自由端，所述第二壳体靠近第一法兰的一端与所述第一法兰留有第二间隙，所述第二壳体外设置有弹性补偿节，所述弹性补偿节的两端分别与所述第一法兰和所述第二法兰密封连接，所述弹性补偿节、所述第一法兰以及所述第二法兰围成密封腔，以使所述第一法兰与所述第二法兰的间距能伸缩；
所述第一壳体靠近所述第二法兰的端面上固定连接有第一环形板，所述第一壳体、所述第一法兰以及所述第一环形板形成腔体结构，所述第二壳体靠近所述第一法兰的端面上固定连接有第二环形板，所述第二壳体、所述第二法兰以及所述第二环形板形成腔体结构。
即煤气与固态物料一起通过回转窑下料系统后，在承接料仓再分离煤气。
与现有技术相比，本公开实施例的有益效果包括，例如：
本公开实施例提供了一种回转窑密封系统和回转窑设备，通过设置第一壳体、第二壳体以及弹性补偿节实现了回转窑密封系统外部的严格密封，双层壳体结构在上下左右留有足够的活动调节范围，使得回转窑密封系统安装至下料罩上时，随回转窑转动不会受到限制。弹性补偿节实现了摆动位移的补偿。此外，双层壳体结构可以吸收热解煤辐射热，使得外部的密封的弹性补偿节材料更容易选择，使用寿命更长。本公开实施例提供的结构也避免了外部的弹性补偿节接触辐射热导致使用寿命缩短。因此，本公开实施例提供的回转窑设备在实现上下左右摆动的同时，又能满足密封的需求。
附图说明
为了更清楚地说明本公开实施例的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，应当理解，以下附图仅示出了本公开的某些实施例， 因此不应被看作是对范围的限定，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他相关的附图。
图1为本公开实施例提供的第一种回转窑设备总示意图；
图2是本公开实施例提供的第一种下料密封机构的内部示意图；
图3是本公开实施例提供的第一种煤气密封机构的内部示意图；
图4为本公开实施例提供的第二种下料密封机构的内部示意图；
图5为本公开实施例提供的第二种煤气密封机构的内部示意图；
图6是本公开实施例提供的第二种回转窑设备总示意图；
图7为本公开实施例提供的第三种煤气密封机构的内部示意图；
图8为本公开实施例提供的第四种煤气密封机构的内部示意图；
图9为本公开实施例提供的第五种煤气密封机构的内部示意图；
图10为本公开实施例提供的第三种下料密封机构的内部示意图；
图11为本公开实施例提供的第四种下料密封机构的内部示意图；
图12为本公开实施例提供的第五种下料密封机构的内部示意图；
图13为本公开实施例的第三种提供的回转窑设备总示意图。
图标：1-回转窑窑尾；2-回转窑下料罩；3-回转窑下料罩下料密封系统；4-回转窑下料罩出气密封系统；5-回转窑密封系统；21-横向筒体；22-端面；31-下料口；32-下料密封机构；33-承接料仓口；34-下料仓；3211-第一法兰；3221-第二法兰；3212-第一壳体；32121-溢流管；3213-第一环形板；3214-第一进水口；3215-第一出水口；3222-第二壳体；3223-第二环形板；3224-第二进水口；3225-第二出水口；323-弹性补偿节；41-出气口；42-煤气密封机构；43-煤气管道。
具体实施方式
为使本公开实施例的目的、技术方案和优点更加清楚，下面将结合本公开实施例中的附图，对本公开实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本公开一部分实施例，而不是全部的实施例。通常在此处附 图中描述和示出的本公开实施例的组件可以以各种不同的配置来布置和设计。
因此，以下对在附图中提供的本公开的实施例的详细描述并非旨在限制要求保护的本公开的范围，而是仅仅表示本公开的选定实施例。基于本公开中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本公开保护的范围。
应注意到：相似的标号和字母在下面的附图中表示类似项，因此，一旦某一项在一个附图中被定义，则在随后的附图中不需要对其进行进一步定义和解释。
在本公开的描述中，需要说明的是，术语“中心”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“内”、“外”、“顺时针”、“逆时针”等指示的方位或位置关系为基于附图所示的方位或位置关系，或者是该发明产品使用时惯常摆放的方位或位置关系，仅是为了便于描述本公开和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本公开的限制。此外，术语“第一”、“第二”、“第三”等仅用于区分描述，而不能理解为指示或暗示相对重要性。
此外，术语“水平”、“竖直”、“悬垂”等术语并不表示要求部件绝对水平或悬垂，而是可以稍微倾斜。如“水平”仅仅是指其方向相对“竖直”而言更加水平，并不是表示该结构一定要完全水平，而是可以稍微倾斜。
在本公开的描述中，还需要说明的是，除非另有明确的规定和限定，术语“设置”、“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本公开中的具体含义。
参照图1和图2所示，本实施例提供了一种回转窑设备，其包括回转窑窑尾1、回转窑下料罩2和回转窑密封系统5。回转窑密封系统5包括回转窑下料罩出气密封系统4和回转窑下料罩下料密封系统3。出煤气使用回转窑下料罩出气密封系统4，固态物料使用回转窑下料罩下料密封系统3。
本实施例中，回转窑下料罩出气密封系统4设置于回转窑下料罩2的顶部，回转窑下料罩下料密封系统3设置于回转窑下料罩2的底部。
其中，回转窑下料罩2由横向筒体21和端面22组成，横向筒体21和端面22固定焊接，回转窑下料罩2设置于回转窑窑尾1的外周，使用时，回转 窑下料罩2可随回转窑窑尾1的回转而上下左右跳动，跳动的最大振幅为A，A小于50mm。
回转窑下料罩下料密封系统3包括下料口31、下料密封机构32和承接料仓口33，下料口31一端与横向筒体21的底端密封连接，且下料口31的内腔与横向筒体21的内腔贯通，下料口31的另一端通过下料密封机构32与承接料仓口33连接。下料口31、下料密封机构32和承接料仓口33之间通过法兰盘相互连接。
使用时，物料可以从下料口31递送入下料密封机构32，并从承接料仓口33出。
参照图2所示，本实施例中，下料密封机构32包括第一壳体3212和第二壳体3222，第二壳体3222空间上环设于第一壳体3212外，弹性补偿节323位于第二壳体3222的外部，第一壳体3212的一端固定连接有第一法兰3211，第一壳体3212远离第一法兰3211的另一端为位于第二法兰3221内的自由端，该自由端可沿第一壳体3212的长度方向上下位移，也可在第一间隙内左右位移。第二壳体3222在远离第一法兰3211的方向上固定连接有第二法兰3221，弹性补偿节323的两端分别与第一法兰3211和第二法兰3221密封连接，以使第一法兰3211与第二法兰3221的间距自如伸缩，第一壳体3212与第二壳体3222之间留有第一间隙，第二壳体3222的靠近第一法兰3211的一端与第一法兰3211留有第二间隙。
本实施例设置第一间隙的间距为A。该第一间隙最大值为第一壳体3212的外壁与第二壳体3222内壁之间的最大间距值。
第二法兰3221的内圆直径比第一法兰3211的内圆直径大，第一法兰3211的内圆半径值为B，沿第一法兰3211的内圆下端面设置第一壳体3212，向下延伸至第二法兰3221的端面，并在第一壳体3212的下端面封焊第一环形板3213，第一壳体3212、第一法兰3211以及第一环形板3213形成焊接密封结构，第一壳体3212侧壁厚度为C，第二法兰3221的内圆半径D>A+B+C。
沿第二法兰3221的内圆设置第二壳体3222，向上延伸至距离第一法兰的下端面间距(第二间隙)为E，并在第二壳体3222的上端面封焊第二环形板3223，第二环形板3223的厚度为F，E>A+F。第二壳体3222、第二法兰3221以及第二环形板3223形成焊接密封结构。
第一壳体3212外周壁设置有第一进水口3214和第一出水口3215，且第一进水口3214和第一出水口3215连通，第二壳体3222外周壁设置第二进水口3224和第二出水口3225，且第二进水口3224和第二出水口3225连通。
第一进水口3214、第一出水口3215、第二进水口3224和第二出水口3225均贯穿于弹性补偿节323。
在第一法兰3211和第二法兰3221之间，在第二壳体3222的外周设置有弹性补偿节323，弹性补偿节323的上端和下端分别与第一法兰3211和第二法兰3221密封连接。弹性补偿节323、第一法兰3211以及第二法兰3221之间围合形成密封腔。
本实施例中，弹性补偿节323的材质为金属波纹补偿节。此外，在其他实施例中，弹性补偿节323的材质还可以是橡胶制品，只要满足弹性补偿的功能均在本公开的保护范围内。
本实施例中，参照图2所示，第一进水口3214和第一出水口3215均设置在第一壳体3212的顶部，第二进水口3224和第二出水口3225均设置在第二壳体3222的顶部。使用时，通过换热介质(水)实现密封机构中物料的降温，以减少对外释放的热辐射量。
在本实施例中，第一进水口3214、第一出水口3215、第二进水口3224以及第二出水口3225均由三段连接管构成。该三段连接管包括依次连通的第一金属硬管、第一软管以及第二金属硬管，第一进水口3214和第一出水口3215中的第一金属硬管与第一壳体3212连接，第二进水口3224和第二出水口3225中的第一金属硬管与第二壳体3222连接，第一进水口3214、第一出水口3215、第二进水口3224以及第二出水口3225中的第二金属硬管均与弹性补偿节323连接。结合图1，回转窑下料罩出气密封系统4包括依次连通的出气口41、煤气密封机构42和煤气管道43，且出气口41的内腔与回转窑下料罩2的顶部连通，使用时，煤气从回转窑下料罩2的顶部导出，穿过煤气密封机构42，并从煤气管道43导出。煤气管道43可以外接煤气收集装置或净化装置。
本实施例中，煤气密封机构42的结构参照图3所示，沿着图3中X箭头指示的方向将煤气密封机构42通过法兰连接于图1的出气口41上，煤气密封机构42的第一法兰3211与图1中的出气口41连接。
图3中，煤气密封机构42包括第一壳体3212和第二壳体3222，第二壳体3222空间上环设于第一壳体3212外，弹性补偿节323位于第二壳体3222的外部。
第一壳体3212的底端固定连接有第一法兰3211，第二壳体3222在顶端固定连接有第二法兰3221，弹性补偿节323的两端分别与第一法兰3211和第二法兰3221密封连接，以使第一法兰3211与第二法兰3221的间距自如伸缩，第一壳体3212与第二壳体3222之间留有第一间隙，第二壳体3222靠近第一 法兰3211的一端与第一法兰3211之间留有第二间隙。
参照图3，第一壳体3212的下部设置有第一进水口3214，水从第一进水口3214进入第一壳体3212中。第一壳体3212内埋设有溢流管32121，溢流管32121呈L形，溢流管32121的一端延伸至第一壳体3212的腔室顶部，溢流管32121的另一端与位于第一壳体3212外的第一出水口3215连通。
使用时，冷却水从第一壳体3212的下方第一进水口3214进入第一壳体3212的腔室中，并逐渐升高，当冷却水的液面升高至溢流管32121的进入口的高度时，水流入溢流管32121中，并从第一壳体3212下方的第一出水口3215流出。这样实现了冷却隔热的热交换。
煤气密封机构42的第二壳体3222内也设有水冷腔，第二壳体3222的相对两侧分别设置有第二进水口3224和第二出水口3225，本实施例中，煤气密封机构42的第二进水口3224和第二出水口3225均设置于第二壳体3222的上部。使用时，从图3中的第二壳体3222的左侧的第二进水口3224进水，待液面高度超过第二出水口3225的高度时，水流溢出第二壳体3222外。
本实施例中，通过图2和图3中的双层水冷壳体结构对物料和煤气的辐射热进行吸收。
在其它的一些实施例中，请参照图4和图5，煤气密封机构42与下料密封机构32的弹性补偿节323的材质均为弹性橡胶制品；而在图2和图3中，煤气密封机构42与下料密封机构32的弹性补偿节323材质均为金属波纹补偿节。
在其它一些实施例中，参照图4和图5，图4所示的下料密封机构32与图2所示的下料密封机构32的区别在于：下料密封机构32的第二进水口3224设置在第二壳体3222的底部，下料密封机构32的第二出水口3225设置在第二壳体3222的顶部；而在图2中，下料密封机构32的第二进水口3224和第二出水口3225均设置在第二壳体3222的顶部。
另外，在图4中，下料密封机构32的第一进水口3214、第一出水口3215、第二进水口3224以及第二出水口3225均由两段连接管构成。该两段连接管包括相互连通的第三金属硬管和第二软管，第一进水口3214和第一出水口3215中的第三金属硬管与第一壳体3212连接，第二进水口3224和第二出水口3225中的第三金属硬管与第二壳体3222连接，第一进水口3214、第一出水口3215、第二进水口3224以及第二出水口3225中的第二软管均贯通弹性补偿节323，并与弹性补偿节323密封连接。第二软管具有补偿下料机构位置变化的功能。
图5所示的煤气密封机构42与图3所示的煤气密封机构42的区别在于：煤气密封机构42的第二壳体3222的第二进水口3224设置在第二壳体3222的底部。
在图5中，煤气密封机构42进行煤气换热时，通冷水进入第二壳体3222底部的第二进水口3224，待第二壳体3222中的液面上升至第二出水口3225的高度时，水流沿第二出水口3225溢出。在第一壳体中，冷却水从第一壳体3212的下方第一进水口3214进入第一壳体3212的腔室中，并随着液面的升高至溢流管32121的高度时，流入溢流管32121中，并从第一壳体3212下方的第一出水口3215流出。这样实现了冷却隔热的热交换。
在其它的一些实施例中，参照图6，图6所示的回转窑设备与图1中所示的回转窑设备的区别在于，图6所示的回转窑下料罩出气密封系统4在回转窑下料罩2的端面，回转窑下料罩下料密封系统3位于回转窑下料罩2的底端，而图1的回转窑下料罩出气密封系统4均位于回转窑下料罩2顶端。
在其它的一些实施例中，请参照图7，图7中的煤气密封机构42与图3中的煤气密封机构42的区别在于，双层壳体不含第一进水口3214、第一出水口3215、第二进水口3224和第二出水口3225。双层壳体内均设置有保温层。具体的，第一壳体3212内设置有第一保温层，第二壳体3222内设置有第二保温层。
在其它的一些实施例中，也可以在与第一法兰3211和第一环形板3213焊接连接处至少留一处透气缝隙，第二壳体3222与第二法兰3221和第二环形板3223形成焊接连接结构且至少留一处透气缝隙。
本实施例中，煤气密封机构42的第一壳体3212外层壳体上留两个透气孔，第二壳体3222外层壳体上留两个透气孔。
在图8中，煤气密封机构42的第一壳体3212内设置有第一保温层，第一壳体3212的结构与图7中的第一壳体3212的结构相同。在图8中，第二壳体3222内设置有水冷腔，第二壳体3222的两侧分别设置有第二进水口3224和第二出水口3225。
在图8中，第二进水口3224和第二出水口3225均设置于第二壳体3222的顶部。使用时，从第二进水口3224进水，待水冷腔内的液面高度超过第二出水口3225时，循环水从第二出水口3225溢出。
在其它的一些实施例中，图9所示的煤气密封机构42与图8中的煤气密封机构42区别在于，在图8中，第二壳体3222的第二进水口3224设置于第 二壳体3222的下方。
在其它的一些实施例中，图10所示，图10中的下料密封机构32包括回转窑窑尾1、回转窑下料罩2和回转窑密封系统5。回转窑密封系统5包括回转窑下料罩出气密封系统4和回转窑下料罩下料密封系统3。
回转窑下料罩下料密封系统3包括下料口31、下料密封机构32和承接料仓口33。下料密封机构32的结构参照图10所示。第一壳体3212内设置有第一保温层，不含水冷腔、第一进水口3214、第一出水口3215。
第一壳体3212的外层与第一环形板3213的连接处留有一处透气缝隙。回转窑下料罩出气密封系统4包括依次连通的出气口41、煤气密封机构42和煤气管道43。
煤气密封机构42的结构参照实施例1的图3所示，沿着图3中X箭头指示的方向将煤气密封机构42通过法兰连接在图1的出气口41上，煤气密封机构42的第一法兰3211与图1中的出气口41连接。
在其它的一些实施例中，图11所示的下料密封机构32的第二壳体3222外部的第二进水口3224设置于第二壳体3222的下部，第二出水口3225设置于第二壳体3222的上部。在其它的一些实施例中，图12中的下料密封机构32的结构与图10中的下料密封机构的结构区别在于，第二壳体3222内充填有第二保温层，第二壳体3222外侧设置一个透气孔(图中未示出)。
在其它的一些实施例中，图13与图1不同的是，图1中的回转窑下料罩出气密封系统4在回转窑下料罩2的顶部，回转窑下料罩下料密封系统3在回转窑下料罩2的底部；而图13中的回转窑下料罩出气密封系统4与回转窑下料罩下料密封系统3共用下料密封机构32。在承接料仓口33的底部固定连接有下料仓34，在下料仓34的旁边开设置有出气口41，出气口41与煤气管道43连通。
使用时，烟气和物料同时从下料密封机构32中进入下料仓34，气体分离后从下料仓34顶部的出气口41排出。
以上仅为本公开的具体实施例而已，并不用于限制本公开，对于本领域的技术人员来说，本公开可以有各种更改和变化。凡在本公开的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本公开的保护范围之内。
工业实用性
综上所述，本公开提供了一种回转窑密封系统和回转窑设备，其在实现不 同方向摆动的同时，又能满足密封要求。

Claims (16)

  1. 一种回转窑密封系统，其特征在于，所述回转窑密封系统包括回转窑下料罩下料密封系统和回转窑下料罩出气密封系统，其中，所述回转窑下料罩下料密封系统包括下料口、下料密封机构和承接料仓，所述下料口、所述下料密封机构和所述承接料仓依次连通；所述回转窑下料罩出气密封系统包括出气口、煤气密封机构、煤气管道，所述出气口、所述煤气密封机构和所述煤气管道依次连通；所述下料密封机构和所述煤气密封机构均包括第一壳体和第二壳体，所述第二壳体空间上环设于所述第一壳体外，且所述第一壳体与所述第二壳体之间留有第一间隙，所述第一壳体一端固定连接有第一法兰，所述第二壳体在远离所述第一法兰的方向上固定连接有第二法兰，所述第一壳体远离所述第一法兰的另一端为位于所述第二法兰内的自由端，所述第二壳体靠近第一法兰的一端与所述第一法兰留有第二间隙，所述第二壳体外设置有弹性补偿节，所述弹性补偿节的两端分别与所述第一法兰和所述第二法兰密封连接，所述弹性补偿节、所述第一法兰以及所述第二法兰围成密封腔，以使所述第一法兰与所述第二法兰的间距能伸缩；
    所述第一壳体靠近所述第二法兰的端面上固定连接有第一环形板，所述第一壳体、所述第一法兰以及所述第一环形板形成腔体结构，所述第二壳体靠近所述第一法兰的端面上固定连接有第二环形板，所述第二壳体、所述第二法兰以及所述第二环形板形成腔体结构。
  2. 根据权利要求1所述的回转窑密封系统，其特征在于，所述回转窑密封系统还包括第一进水口、第一出水口、第二进水口和第二出水口，所述第一壳体和所述第二壳体内均设置有水冷密封腔，所述第一进水口和所述第一出水口设置在所述第一壳体外周壁，所述第一进水口和所述第一出水口均与所述第一壳体的水冷密封腔连通，所述第二进水口和所述第二出水口设置在所述第二壳体外周，所述第二进水口和所述第二出水口均与所述第二壳体的水冷密封腔连通，所述第一进水口、第一出水口、第二进水口和第二出水口贯穿所述弹性补偿节，且所述第一进水口、第一出水口、第二进水口和第二出水口均与所述弹性补偿节密封连接。
  3. 根据权利要求2所述的回转窑密封系统，其特征在于，所述弹性补偿节为弹性橡胶制品或金属波纹补偿节。
  4. 根据权利要求3所述的回转窑密封系统，其特征在于，当所述弹性补偿节为金属波纹补偿节时，所述第一进水口、第一出水口、第二进水口和第二出水口均由三段连接管构成，所述三段连接管包括依次连通的第一 金属硬管、第一软管以及第二金属硬管，所述第一进水口和所述第一出水口中的第一金属硬管均与所述第一壳体连接，所述第二进水口和第二出水口中的第一金属硬管均与所述第二壳体连接，所述第一进水口、所述第一出水口、所述第二进水口以及所述第二出水口中的第二金属硬管均与所述弹性补偿节连接。
  5. 根据权利要求3所述的回转窑密封系统，其特征在于，当所述弹性补偿节为弹性橡胶制品时，所述第一进水口、第一出水口、第二进水口和第二出水口均由两段连接管构成，所述两段连接管包括相互连通的第三金属硬管和第二软管，所述第一进水口和所述第一出水口中的第三金属硬管均与所述第一壳体连接，所述第二进水口和第二出水口中的第三金属硬管均与所述第二壳体连接，所述第一进水口、所述第一出水口、所述第二进水口以及所述第二出水口中的第二软管均与所述弹性补偿节连接。
  6. 根据权利要求1所述的回转窑密封系统，其特征在于，所述第一壳体内设置有第一保温层，所述第二壳体内设置有第二保温层。
  7. 根据权利要求6所述的回转窑密封系统，其特征在于，所述第一壳体和所述第二壳体的外周均开设有透气孔。
  8. 根据权利要求6或7所述的回转窑密封系统，其特征在于，所述第一壳体与第一法兰的连接处至少留有一处透气缝隙，所述第二壳体与第二法兰的连接处至少留有一处透气缝隙。
  9. 根据权利要求6-8任一项所述的回转窑密封系统，其特征在于，所述第一壳体与所述第一环形板的连接处至少留有一处透气缝隙；所述第二壳体与所述第二环形板的连接处至少留有一处透气缝隙。
  10. 根据权利要求1-9任一项所述的回转窑密封系统，其特征在于，所述第一壳体内设置有第一保温层，所述第二壳体内设置有水冷腔，所述回转窑密封系统还包括第二进水口和第二出水口，所述第二进水口和所述第二出水口设置在所述第二壳体外周，所述第二进水口和所述第二出水口均与所述水冷腔连通，第二进水口和第二出水口贯穿所述弹性补偿节，且所述第二进水口和第二出水口均与所述弹性补偿节密封连接。
  11. 根据权利要求1-10任一项所述的回转窑密封系统，其特征在于，所述第一法兰和所述第二法兰呈环形，所述第二法兰的内圆半径为D，所述第一法兰的内圆半径为B，所述第一法兰的侧壁厚度为C，所述第一间隙的间距为A，D>A+B+C。
  12. 根据权利要求11所述的回转窑密封系统，其特征在于，所述第二环形板的厚度为F，第二间隙的间距为E，E>A+F。
  13. 根据权利要求2-5任一项所述的回转窑密封系统，其特征在于，所述第一进水口和所述第一出水口均设置在所述第一壳体的下部，所述回转窑密封系统还包括溢流管，所述溢流管设置在所述第一壳体内，所述溢流管的一端延伸至所述第一壳体的顶部，所述溢流管的另一端与所述第一出水口连通。
  14. 一种回转窑设备，其特征在于，其包括回转窑窑尾、回转窑下料罩和权利要求1-13任一项所述的回转窑密封系统，所述回转窑窑尾与所述回转窑下料罩连接，所述回转窑下料罩下料密封系统和所述回转窑下料罩出气密封系统均安装在所述回转窑下料罩上。
  15. 根据权利要求14所述的回转窑设备，其特征在于，所述回转窑下料罩出气密封系统的出气口设置在所述下料罩的端面。
  16. 一种回转窑设备，其特征在于，其包括回转窑下料罩出气密封系统和回转窑下料罩下料密封系统，所述回转窑下料罩下料密封系统包括依次连通的下料口、下料密封机构和承接料仓口，所述回转窑下料罩出气密封系统包括出气口和煤气管道，所述出气口的一端与所述承接料仓口连通，所述出气口的另一端与所述煤气管道连通，所述出气口配置成将所述承接料仓口内的气体引导流入所述煤气管道内；
    所述下料密封机构包括第一壳体和第二壳体，所述第二壳体空间上环设于所述第一壳体外，且所述第一壳体与所述第二壳体之间留有第一间隙，所述第一壳体一端固定连接有第一法兰，所述第二壳体在远离所述第一法兰的方向上固定连接有第二法兰，所述第一壳体远离所述第一法兰的另一端为位于所述第二法兰内的自由端，所述第二壳体靠近第一法兰的一端与所述第一法兰留有第二间隙，所述第二壳体外设置有弹性补偿节，所述弹性补偿节的两端分别与所述第一法兰和所述第二法兰密封连接，所述弹性补偿节、所述第一法兰以及所述第二法兰围成密封腔，以使所述第一法兰与所述第二法兰的间距能伸缩；
    所述第一壳体靠近所述第二法兰的端面上固定连接有第一环形板，所述第一壳体、所述第一法兰以及所述第一环形板形成腔体结构，所述第二壳体靠近所述第一法兰的端面上固定连接有第二环形板，所述第二壳体、所述第二法兰以及所述第二环形板形成腔体结构。
PCT/CN2020/107522 2020-04-01 2020-08-06 一种回转窑密封系统和回转窑设备 WO2021196484A1 (zh)

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