WO2022062190A1 - Structure supérieure de four de four à rouleaux légers - Google Patents

Structure supérieure de four de four à rouleaux légers Download PDF

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Publication number
WO2022062190A1
WO2022062190A1 PCT/CN2020/134795 CN2020134795W WO2022062190A1 WO 2022062190 A1 WO2022062190 A1 WO 2022062190A1 CN 2020134795 W CN2020134795 W CN 2020134795W WO 2022062190 A1 WO2022062190 A1 WO 2022062190A1
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WO
WIPO (PCT)
Prior art keywords
furnace
heating rod
aluminum silicate
refractory brick
wall
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PCT/CN2020/134795
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English (en)
Chinese (zh)
Inventor
陈龙豪
周晓铿
吕华博
金磊
朱从健
Original Assignee
苏州汇科机电设备有限公司
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Publication of WO2022062190A1 publication Critical patent/WO2022062190A1/fr

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    • 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
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
    • F27B9/32—Casings
    • F27B9/34—Arrangements of linings
    • 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
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/02—Crowns; Roofs

Definitions

  • the invention belongs to the technical field of kilns, and in particular relates to a furnace top structure of a light-weight roller furnace.
  • the above-mentioned kilns are mainly but not absolutely limited to firing various electronic powder materials and electronic components, etc., the industry is accustomed to calling them electronic kilns; the above-mentioned roller furnaces are interpreted from their terms. It can be seen that the saggar or similar container carrying the electronic powder or electronic components contained in it is moved from the inlet end of the furnace to the outlet end by the rotation of the roller, and the whole process of the movement is the same as the above the burning process.
  • the kiln is usually divided into several different temperature zones according to the material properties and process requirements, such as preheating zone, heating zone, constant temperature zone, cooling zone, cooling zone, etc.
  • the furnace width of the roller furnace is reasonably increased, for example, the furnace width can be expanded to 1500mm or even larger, then at least the side-by-side transportation requirements for multiple saggers in a row can be met, for example, 330 ⁇ 330 ⁇ 100mm
  • the size of the saggar can make the four saggars in the row move side by side, thus achieving the effect of killing two birds with one stone, which can not only increase production capacity but also significantly save energy consumption.
  • the furnace roofs of the roller furnaces in the prior art including the patents exemplified above are all circular arc domes, although the roller furnaces with circular arc domes have the advantage of being relatively firm and stable in structure, the width of the furnace Limited, it is not enough to meet the high production capacity and low energy consumption requirements expected by manufacturers of electronic powder materials and electronic components. If in the absence of reasonable technical support measures, simply change the arc dome to a flat structure (that is, to an open-hearth furnace top structure) and increase the width of the furnace to meet the requirements of the aforementioned manufacturers, then the arch After leveling, due to the large span of the furnace roof, there is a risk of collapse and even undesired production accidents.
  • the weight of the furnace is significantly increased, and the heavy bricks have large heat storage.
  • the arc vault of the furnace cannot be constructed with light bricks.
  • the arc vault of the wide furnace is constructed with lightweight materials such as thermal insulation boards, the risk of roof collapse is greater.
  • the double-layer structure adopted by the aforementioned CN111351347A is essentially a technical means of compromise. Specifically, when the upper and lower furnaces are used at the same time, the output per unit time can be doubled compared with the single-layer furnace, but the energy consumption There is no saving, because the upper and lower furnaces are only superimposed on each other, which has made great achievements in improving the space utilization rate in terms of height, and their working methods are independent.
  • CN111351347A stacks two sets of furnaces that can be used independently and at the same time, which has the problems of troublesome transportation, on-site installation and daily inspection, and cannot play the role of increasing production and saving energy in essence.
  • the task of the present invention is to provide a method that is conducive to significantly increasing the output per unit time to meet the requirements of industrial production, is conducive to significantly increasing the heating rate, reducing heat storage and improving thermal insulation properties to save energy consumption and embody the current overall
  • the energy-saving and energy-saving economic spirit advocated by the society is beneficial to significantly reduce the weight of the furnace body to save transportation and installation costs, to significantly simplify the structure and significantly improve manufacturing efficiency to reduce manufacturing costs and save valuable labor resources.
  • the top structure of the high-quality roller furnace is beneficial to significantly reduce the weight of the furnace body to save transportation and installation costs, to significantly simplify the structure and significantly improve manufacturing efficiency to reduce manufacturing costs and save valuable labor resources.
  • a furnace top structure of a light-weight roller furnace includes a base; a furnace body, the furnace body includes a furnace shell, a furnace bottom lining, The left furnace wall lining, right furnace wall lining and furnace hearth, the furnace shell is supported on the base along the length direction of the base, the furnace bottom lining is arranged at the bottom of the furnace shell cavity in the length direction of the furnace shell, and the left furnace wall lining is corresponding to the base.
  • the position on the left side of the furnace bottom lining follows the length direction of the left cavity wall of the furnace shell cavity of the furnace shell, and the right furnace wall lining is located at a position corresponding to the right side of the furnace bottom lining and follows the length of the furnace jacket cavity of the furnace jacket.
  • the right cavity wall is arranged in the length direction, and the space formed by the furnace bottom lining, the left furnace wall lining and the right furnace wall lining constitutes the furnace hearth, and the furnace hearth is from the feeding port at one end of the furnace body in the length direction.
  • the saggar conveying rollers are arranged at intervals along the length direction of the furnace body and rotate, and the left end of the saggar conveying roller passes through the left furnace wall in turn
  • the lining and the furnace shell extend to the outside of the left side of the furnace body, the middle part corresponds to the furnace hearth, and the right end passes through the right furnace wall lining and the furnace shell in turn and extends to the outside of the right side of the furnace body;
  • the left end of the heating rod is supported on the left furnace wall lining and protrudes from the left side of the furnace shell, while the right end is supported on the right furnace wall lining and protrudes from the
  • the furnace top sealing and protecting mechanism is set in a horizontal state, and the left side of the furnace top sealing and protecting mechanism cooperates with the upper support in the length direction of the left furnace wall lining, the middle part corresponds to the top of the furnace, and the right side corresponds to the top of the furnace. Cooperate with the upper support of the right furnace wall lining.
  • the left furnace wall lining includes a left furnace wall aluminum silicate fiber board layer and a left furnace wall refractory brick layer, and the left furnace wall aluminum silicate fiber board layer is along the furnace shell.
  • the length direction of the left cavity wall of the furnace shell cavity is arranged and supported on the furnace bottom lining.
  • the upper plane of the left furnace wall refractory brick layer is flush with the upper plane of the left furnace wall aluminum silicate fiber board layer;
  • the right furnace wall lining includes the right furnace wall aluminum silicate The fiberboard layer and the right furnace wall refractory brick layer, the right furnace wall aluminum silicate fiberboard layer is arranged along the length direction of the right chamber wall of the furnace shell cavity of the furnace shell and is also supported on the furnace bottom lining, the right furnace wall
  • the refractory brick layer is composed of the right furnace wall refractory bricks, which are built upward from the furnace bottom lining at the position close to the left side of the right furnace wall aluminum silicate fiber board layer, and the upper plane of the right furnace wall refractory brick layer is connected to the right furnace wall.
  • the upper plane of the wall aluminum silicate fiber board layer is flush; the left end of the saggar conveying roller extends to the left side of the furnace body after passing through the left furnace wall refractory brick layer and the left furnace wall aluminum silicate fiber board layer in turn.
  • the right end of the saggar conveying roller extends to the outside of the right side of the furnace body after passing through the right furnace wall refractory brick layer and the right furnace wall aluminum silicate fiber board layer in turn;
  • the left ends of the upper heating rod and the lower heating rod are are supported on the refractory brick layer of the left furnace wall and the aluminum silicate fiber board layer of the left furnace wall, and the right ends of the upper heating rod and the lower heating rod are supported on the refractory brick layer of the right furnace wall and the aluminum silicate fiber board layer of the right furnace wall;
  • the The furnace top sealing mechanism and the left end of the skeleton mechanism cooperate with the left furnace wall refractory brick layer and the upper support of the left furnace wall aluminum silicate fiber board layer, while the right end cooperates with the right furnace wall refractory brick layer and the right furnace wall aluminum silicate fiber board.
  • the upper part of the layer supports and cooperates; the space formed by the cooperation of the left furnace wall refractory brick layer, the right furnace wall refractory
  • the left end of the saggar conveying roller is provided with a left heat insulating sleeve of the saggar conveying roller
  • the right end of the saggar conveying roller is provided with a right heat insulating sleeve of the saggar conveying roller
  • the left heat insulating sleeve of the saggar conveying roller is fixed with the left cavity wall of the furnace shell cavity of the furnace shell and is located in the aluminum silicate fiber board layer of the left furnace wall
  • the right heat insulating sleeve of the saggar conveying roller is connected to the furnace shell.
  • the right cavity wall of the furnace shell cavity of the shell is fixed and located in the right furnace wall aluminum silicate fiber board layer, and the left end of the saggar conveying roller and the left furnace wall aluminum silicate fiber board layer and the left furnace wall refractory brick layer are separated from each other.
  • a left hanging cavity is formed for avoiding the contact between the left end of the saggar conveying roller and the aluminum silicate fiber board layer of the left furnace wall and the refractory brick layer of the left furnace wall, and the right end of the saggar conveying roller is connected with the aluminum silicate fiber plate layer of the right furnace wall and the left furnace wall.
  • a right hanging cavity is formed between the refractory brick layers of the right furnace wall for preventing the right end of the saggar conveying roller from contacting the aluminum silicate fiber board layer of the right furnace wall and the refractory brick layer of the right furnace wall.
  • the right end of the left supporting refractory brick of the sleeve is supported on the upper part of the refractory brick layer of the left furnace wall, and an upper heating rod guard is supported on the right upper supporting strip and at a position corresponding to the right end of the upper heating rod sheathing sleeve.
  • the right end of the sleeve supports the right end of the refractory brick, and the left end of the right support refractory brick of the upper heating rod sheathing sleeve is supported on the upper part of the refractory brick layer of the right furnace wall, and the left end of the upper heating rod passes through the upper heating rod sheathing sleeve
  • the left supporting refractory brick protrudes out of the left side of the furnace shell, and the right end of the upper heating rod passes through the upper heating rod sheath tube and the right supporting refractory brick protrudes out of the right side of the furnace shell;
  • the position of the left end of the lower heating rod sheathing tube supports the left end of the left supporting refractory brick of the lower heating rod sheathing tube, and the right end of the left supporting refractory brick of the lower heating rod sheathing tube is supported on the bottom lining of the furnace.
  • the right lower support bar supports the right end of the lower heating rod sheathing tube right supporting refractory brick at a position corresponding to the right end of the lower heating rod sheathing tube, and the left end of the lower heating rod sheathing tube supports the right supporting refractory brick.
  • the left end of the lower heating rod protrudes out of the left side of the furnace shell through the left supporting refractory brick of the lower heating rod sheathing tube, and the right end of the lower heating rod passes through the lower heating rod sheathing tube and the right supporting refractory brick The brick sticks out of the right side of the furnace shell.
  • the furnace bottom lining is provided at the bottom of the furnace shell cavity in the length direction of the furnace shell in a masonry manner by using thermal insulation bricks, and the thermal insulation bricks are light clay thermal insulation bricks.
  • the thermal insulation bricks are light clay thermal insulation bricks.
  • an upper heating rod sheathing tube is provided on the left supporting refractory brick of the upper heating rod sheathing tube and at a position corresponding to the left end of the upper heating rod sheathing tube.
  • the supporting refractory brick through hole is provided on the right supporting refractory brick of the upper heating rod sheathing tube and at a position corresponding to the right end of the upper heating rod sheathing tube.
  • the left end of the upper heating rod sheathing tube passes through the left supporting refractory brick through hole of the upper heating rod sheathing tube, and the right end passes through the right supporting refractory brick through hole of the upper heating rod sheathing tube;
  • the position of the right end of the lower heating rod sheathing tube is provided with a right supporting refractory brick through hole of the lower heating rod sheathing tube, and the left end of the lower heating rod sheathing tube passes through the left supporting refractory brick through hole of the lower heating rod sheathing tube, and The right end passes through the through hole of the right supporting refractory brick of the lower heating rod sheath tube.
  • the left end of the upper heating rod is sleeved with a heat insulation sleeve at the left end of the upper heating rod, and the insulation sleeve at the left end of the upper heating rod and the upper heating rod protective sleeve are The lumen is matched, and the right end of the upper heating rod is sleeved with a heat insulation sleeve at the right end of the upper heating rod, and the heat insulation sleeve at the right end of the upper heating rod is matched with the lumen of the protective sleeve of the upper heating rod;
  • the left end of the lower heating rod is sleeved with a heat insulation sleeve at the left end of the lower heating rod.
  • the heat insulating sleeve at the right end of the lower heating rod is matched with the lumen of the protective sleeve of the lower heating rod.
  • the furnace top sealing mechanism includes a left aluminum silicate longitudinal support plate, an aluminum silicate right longitudinal support plate, an aluminum silicate felt and an aluminum silicate fiber board, and the aluminum silicate left and right longitudinal support plates
  • the longitudinal support plate has a group formed in a stepped arrangement, and the aluminum silicate left longitudinal support plate is arranged along the length direction of the left cavity wall of the furnace shell cavity of the furnace shell and supported on the left furnace wall aluminum silicate fiber board.
  • the aluminum silicate right longitudinal support plate also has a set of step-like arrangement, and the aluminum silicate right longitudinal support plate is arranged along the length direction of the right cavity wall of the furnace shell cavity of the furnace shell and supported on the said furnace shell.
  • the aluminum silicate felt is horizontally arranged between the aluminum silicate left longitudinal support plate and the aluminum silicate right longitudinal support plate, and the left edge of the aluminum silicate felt in the longitudinal direction
  • the part is supported on the upper part of the refractory brick layer of the left furnace wall, the middle part corresponds to the upper part of the furnace, and the right edge part in the length direction is supported on the upper part of the refractory brick layer of the right furnace wall.
  • the left side of the aluminum silicate fiber board is supported on the left longitudinal aluminum silicate support plate, the middle part is supported on the aluminum silicate felt, and the aluminum silicate fiber board
  • the right side in the longitudinal direction is supported on the right longitudinal support plate of aluminum silicate; the frame mechanism is inserted through the aluminum silicate felt and supported on the opposite side of the furnace shell cavity of the furnace shell.
  • the aluminum silicate left longitudinal support plate and the aluminum silicate right longitudinal support plate are aluminum silicate fiberboards;
  • the frame mechanism includes a frame tube left support bar, The right support bar of the skeleton tube and the skeleton tube spaced along the length direction of the aluminum silicate felt, the left support bar of the skeleton tube is fixed on the left cavity wall of the furnace shell cavity of the furnace shell and is connected with the skeleton tube.
  • the right support bar of the skeleton tube is fixed on the right cavity wall of the furnace shell cavity of the furnace shell and corresponds to the right end of the skeleton tube.
  • thermocouples for the temperature of the temperature zone, the thermocouples are probed into the furnace through the aluminum silicate fiber board and the aluminum silicate felt from top to bottom.
  • the skeleton tube is an alumina ceramic tube.
  • One of the technical effects of the technical solution provided by the present invention is that a skeleton mechanism is added to the furnace roof structure system, and the skeleton mechanism is inserted into the furnace top sealing mechanism in the state of being supported on the opposite side of the furnace shell, so The width of the furnace top sealing mechanism is increased to the requirement that it can be set in a horizontal state, and the left and right sides of the furnace top sealing mechanism are respectively matched with the upper supports of the left and right furnace wall linings, and the middle part corresponds to the top of the furnace.
  • the top sealing mechanism of the furnace does not need to be built with materials such as refractory bricks, and because the left and right furnace wall lining structures are reasonable, it is beneficial to significantly increase the heating and cooling speed, reduce heat storage and improve thermal insulation performance. It can save energy and reflect the spirit of energy-saving and energy-saving economy; thirdly, because the structure and material selection of the left and right furnace wall lining and furnace top sealing mechanism are reasonable, it is beneficial to significantly reduce the self-weight of the furnace body and save logistics. Fourth, because the overall structure is very simple, it is convenient to improve manufacturing efficiency, reduce manufacturing costs and save valuable labor resources.
  • FIG. 1 is a schematic diagram of an embodiment of the present invention.
  • FIG. 1 shows a base 1 of the structural system of a light roller furnace; shows a furnace body 2, which includes a furnace shell 21, a furnace bottom lining 22, a left furnace wall lining 23, The right furnace wall lining 24 and the furnace hearth 25, the furnace shell 21 is supported on the base 1 along the length direction of the base 1, that is to say, the furnace shell 21 is set on the base 1 as a carrier, and the furnace bottom lining 22 is set on the base 1.
  • the left furnace wall lining 23 is arranged along the length direction of the left cavity wall of the furnace shell cavity of the furnace shell 21 at a position corresponding to the left side of the furnace bottom lining 22, and the right furnace wall
  • the lining 24 is arranged along the length direction of the right cavity wall of the furnace jacket cavity of the furnace jacket 21 at a position corresponding to the right side of the furnace bottom lining 22.
  • the space formed by the left furnace wall lining 23 and the right furnace wall lining 24 is formed as the above-mentioned furnace 25, and the furnace 25 is from one end of the longitudinal direction of the furnace body 1.
  • the discharge port extending to the rear end of the other end in the length direction of the furnace body 1 as shown in FIG.
  • the saggar conveying rollers 3 arranged at intervals along the length direction of the furnace body 1 and rotating, the saggar conveying
  • the left end of the roller 3 extends to the left side of the furnace body 1 through the aforementioned left furnace wall lining 23 and the furnace shell 21 in turn, the middle part corresponds to the aforementioned furnace hearth 25, and the right end extends through the aforementioned right furnace wall lining 24 and the furnace shell 21 in turn.
  • the applicant shows the saggar 8 driven by the saggar conveying roller 3;
  • the upper heating rods 4 above the rollers 3 and the lower heating rods 5 which are also arranged at intervals along the longitudinal direction of the furnace body 1 and located below the saggar conveying rollers 3 are supported by the left ends of the upper heating rods 4 and the lower heating rods 5
  • the aforementioned furnace roof structure system is shown A furnace top sealing mechanism 6.
  • the saggar conveying roller 3 drives the sagger 8 to transport the sagger 8 from one end of the furnace 25, such as the aforementioned front end, that is, one end of the feeding port, to the other end of the furnace 25, such as the aforementioned rear end, that is, one end of the discharging port, it belongs to the prior art. Please refer to CN111351347A mentioned by the applicant in the above background art column, so the applicant will not repeat it.
  • the system of the above-mentioned furnace roof structure also includes a skeleton mechanism 7, and the skeleton mechanism 7 is supported on the opposite side of the aforesaid furnace shell 21.
  • the furnace top sealing and protection mechanism 6 is arranged in a horizontal state, and the left side of the furnace top sealing and protection mechanism 6 is supported and matched with the upper part in the length direction of the aforementioned left furnace wall lining 23, and the middle part corresponds to the aforementioned furnace chamber. 25, while the right side cooperates with the upper support of the aforementioned right furnace wall lining.
  • the skeleton mechanism 7 provides reliable structural strength for the furnace top sealing and protecting mechanism 6, so that the furnace top sealing and protecting mechanism 6 can be arranged horizontally without collapse. Therefore, the top of the furnace body 1 is in the structure of an open furnace top, and the structure of the open furnace top can significantly increase the width of the furnace 25, which is very beneficial for increasing the number of saggers 8 placed on the horizontal row, thereby improving the output per unit time. And reflect good energy-saving effect.
  • the aforementioned left furnace wall lining 23 includes a left furnace wall aluminum silicate fiber board layer 231 and a left furnace wall refractory brick layer 232 , and the left furnace wall aluminum silicate fiber board layer 231 is along the furnace shell cavity of the aforementioned furnace shell 21 .
  • the length direction of the left cavity wall is arranged and supported on the aforementioned furnace bottom lining 22, and the left furnace wall refractory brick layer 232 is formed by the left furnace wall refractory brick at the position of the left furnace wall aluminosilicate fiber board layer 231.
  • the aforementioned furnace bottom lining 22 is constructed by masonry upward, and the upper plane of the left furnace wall refractory brick layer 232 is flush with the upper plane of the left furnace wall aluminum silicate fiber board layer 231 .
  • the aforementioned right furnace wall lining 24 includes a right furnace wall aluminum silicate fiber board layer 241 and a right furnace wall refractory brick layer 242.
  • the right furnace wall aluminum silicate fiber board layer 241 is along the right cavity wall of the furnace shell cavity of the aforementioned furnace shell 21. The length direction is arranged and also supported on the aforementioned furnace bottom lining 22.
  • the right furnace wall refractory brick layer 242 is formed by the right furnace wall refractory brick at a position close to the left side of the right furnace wall aluminum silicate fiber board layer 241 from the aforementioned furnace bottom lining. 22 is constructed by masonry upward, and the upper plane of the right furnace wall refractory brick layer 242 is flush with the upper plane of the right furnace wall aluminum silicate fiber board layer 241 .
  • the aforementioned left furnace wall aluminum silicate fiber board layer 231 is located between the left cavity wall of the furnace shell cavity of the furnace shell 21 and the left furnace wall refractory brick layer 232, and the aforementioned right furnace wall silicic acid
  • the aluminum fiber board layer 241 is located between the right cavity wall of the furnace shell cavity of the furnace shell 21 and the refractory brick layer 242 of the right furnace wall.
  • the left end of the aforementioned saggar conveying roller 3 extends to the left side of the aforementioned furnace body 1 after passing through the left furnace wall refractory brick layer 232 and the left furnace wall aluminum silicate fiber board layer 231 in turn, while the The right end of the conveying roller 3 extends to the outside of the right side of the aforementioned furnace body 1 after passing through the right furnace wall refractory brick layer 242 and the right furnace wall aluminum silicate fiber board layer 241 in turn; the left ends of the aforementioned upper heating rod 4 and lower heating rod 5 Supported on the left furnace wall refractory brick layer 232 and the left furnace wall aluminum silicate fiber board layer 231, and the right ends of the upper heating rod 4 and the lower heating rod 5 are supported on the right furnace wall refractory brick layer 242 and the right furnace wall aluminum silicate fiber board On layer 241; the left end of the aforementioned furnace top sealing mechanism 6 together with the aforementioned skeleton mechanism 7 is matched with the left furnace wall re
  • a left end of the saggar conveying roller 3 is provided with a left heat-insulating sleeve 31 for the saggar conveying roller, and a right heat-insulating sleeve 32 for the saggar conveying roller is provided at the right end of the saggar conveying roller 3.
  • the roller left heat insulating sleeve 31 is fixed with the left cavity wall of the furnace shell cavity of the aforementioned furnace shell 21 and is located in the aforementioned left furnace wall aluminum silicate fiber board layer 231.
  • the right cavity wall of the furnace shell cavity is fixed and located in the aforementioned right furnace wall aluminum silicate fiber board layer 241, and between the left end of the saggar conveying roller 3 and the left furnace wall aluminum silicate fiber board layer 231 and the left furnace wall refractory brick layer 232 Each constitutes a left hanging cavity 33 for preventing the left end of the saggar conveying roller 3 from contacting with the left furnace wall aluminum silicate fiber board layer 231 and the left furnace wall refractory brick layer 232, while the right end of the saggar conveying roller 3 is in contact with the right furnace wall.
  • a right edge is formed to prevent the right end of the saggar conveying roller 3 from contacting the right furnace wall aluminum silicate fiber board layer 241 and the right furnace wall refractory brick layer 242. Suspended cavity 34 .
  • a cross-sectional shape of an L-shaped upper left support is fixed on the right cavity wall of the furnace shell cavity of the furnace shell 21 and at a position corresponding to the upper part of the aluminosilicate fiber board layer 241 of the aforesaid right furnace wall along the length direction of the right cavity wall with a cross-sectional shape of L.
  • the upper right support bar 212 in the shape of the glyph, the upper left support bar 211 and the upper right support bar 212 correspond to each other left and right and are parallel to each other in the length direction;
  • the lower position of the fiberboard layer 231 is fixed along the length direction of the left cavity wall with a left lower support strip 213 having an L-shaped cross-sectional shape, and is fixed on the right cavity wall of the furnace shell cavity of the furnace shell 21 and corresponding to the aforementioned right furnace.
  • a right lower support bar 214 with an L-shaped cross-sectional shape is fixed at the lower position of the wall aluminum silicate fiber board layer 241 along the length direction of the right cavity wall.
  • the directions are parallel to each other; the aforementioned upper heating rod 4 is arranged in an upper heating rod sheathing tube 41, and the aforementioned lower heating rod 5 is arranged in the lower heating rod sheathing tube 51; on the aforementioned upper left support bar 211 and corresponding to The position of the left end of the upper heating rod sheathing tube 41 supports the left end of the left supporting refractory brick 2111 of the upper heating rod sheathing tube, and the right end of the left supporting refractory brick 2111 of the upper heating rod sheathing tube is supported on the aforementioned left furnace wall refractory brick.
  • the upper part of the layer 232 supports the right end of the upper heating rod sheathing tube right supporting refractory brick 2121 on the aforementioned upper right supporting bar 212 and at a position corresponding to the right end of the aforementioned upper heating rod sheathing tube 41, and the upper heating rod sheathing
  • the left end of the tube right supporting refractory brick 2121 is supported on the upper part of the aforementioned right furnace wall refractory brick layer 242, and the left end of the aforementioned upper heating rod 4 protrudes out of the left side of the furnace shell 21 through the left supporting refractory brick 2111 of the upper heating rod sheathing tube,
  • the right end of the upper heating rod 4 protrudes out of the right side of the furnace shell 21 through the right supporting refractory brick 2121 of the upper heating rod sheathing tube;
  • the left end of the lower heating rod sheathing tube supports the left end of the left supporting refractory brick 2131, while the right end of the lower heating rod sheathing tube left supporting refractory
  • the right end of the lower heating rod sheathing tube right supporting refractory brick 2141 is supported, and the left end of the lower heating rod sheathing tube right supporting refractory brick 2141 is supported on the furnace bottom lining.
  • the left end of the lower heating rod 5 passes through the left supporting refractory brick 2131 of the lower heating rod sheathing tube and protrudes out of the left side of the furnace shell 21, while the right end of the lower heating rod 5 passes through the lower heating rod sheathing tube
  • the right supporting refractory brick 2131 Bricks 2141 protrude out of the right side of the furnace shell 21 .
  • the aforementioned furnace bottom lining 22 is provided at the bottom in the longitudinal direction of the furnace shell cavity of the aforementioned furnace shell 21 by masonry bricks.
  • the thermal insulating bricks are light clay thermal insulating bricks, but they may also be Diatomite thermal insulation brick, high alumina thermal insulation brick, alumina lightweight ball brick or mullite thermal insulation brick.
  • a through hole 21111 is provided on the left supporting refractory brick 2111 of the upper heating rod sheathing tube and at a position corresponding to the left end of the upper heating rod sheathing tube 41
  • the left end of the sleeve 41 passes through the left supporting refractory brick through hole 21111 of the upper heating rod sheathing tube, and the right end passes through the right supporting refractory brick through hole 21211 of the upper heating rod sheathing tube.
  • a through hole 21311 is provided on the left supporting refractory brick 2131 of the lower heating rod sheathing tube and at a position corresponding to the left end of the lower heating rod sheathing tube 51 .
  • a lower heating rod sheathing tube right supporting refractory brick through hole 21411 is opened on the right supporting refractory brick 2141 of the lower heating rod sheathing tube and at a position corresponding to the right end of the lower heating rod sheathing tube 51.
  • the left end of the sleeve 51 passes through the left support refractory brick through hole 21311 of the lower heating rod sheathing tube, and the right end passes through the right supporting refractory brick through hole 21411 of the lower heating rod sheathing tube.
  • the left end of the upper heating rod 4 is covered with a heat insulating sleeve 42 at the left end of the upper heating rod.
  • the right end of the upper heating rod 4 is sleeved with a heat insulating sleeve 43 at the right end of the upper heating rod, and the heat insulating sleeve 43 at the right end of the upper heating rod is matched with the lumen of the upper heating rod sheath tube 41;
  • There is a heat insulation sleeve 52 at the left end of the lower heating rod the left end heat insulation sleeve 52 of the lower heating rod is matched with the lumen of the lower heating rod protective sleeve 51, and the right end of the lower heating rod 5 is sleeved with heat insulation at the right end of the lower heating rod.
  • Sleeve 53, the heat insulation sleeve 53 at the right end of the lower heating rod is matched with the lumen of the lower heating rod sheath tube 51.
  • the aforementioned furnace top sealing mechanism 6 includes a left longitudinal aluminum silicate support plate 61, a right aluminum silicate longitudinal support plate 62, an aluminum silicate felt 63 and an aluminum silicate fiber board 64, and the aluminum silicate left longitudinal support plate
  • the aluminum silicate left longitudinal support plate 61 is arranged along the length direction of the left cavity wall of the furnace shell cavity of the furnace shell 21 and is supported on the aluminum silicate fiber board layer 231 of the left furnace wall.
  • the aluminum silicate right longitudinal support plate 62 also has a set of step-like arrangement, the aluminum silicate right longitudinal support plate 62 is arranged along the length direction of the right cavity wall of the furnace shell cavity of the furnace shell 21 and supported on the furnace shell 21.
  • the aluminum silicate felt 63 is horizontally arranged between the aluminum silicate left longitudinal support plate 61 and the aluminum silicate right longitudinal support plate 62, and the aluminum silicate felt 63 is horizontally arranged.
  • the left edge part in the longitudinal direction is supported on the upper part of the aforementioned left furnace wall refractory brick layer 232, the middle part corresponds to the upper part of the aforementioned furnace chamber 25, and the right edge part in the longitudinal direction is supported on the upper part of the aforementioned right furnace wall refractory brick layer 242,
  • the sides are supported on the aluminum silicate left longitudinal support plate 61, the middle part is supported on the aluminum silicate felt 63 in a flat state, that is, in a horizontal state, and the right side of the aluminum silicate fiber board 64 in the longitudinal direction is supported on the aluminum silicate right longitudinal direction.
  • the aforementioned skeleton mechanism 7 is inserted through the aforementioned aluminum silicate felt 63 and supported on the opposite side of the aforementioned furnace shell 21 of the furnace shell cavity.
  • a group of aluminum silicate left longitudinal support plates 61 have a height difference in the form of steps between each other, such as the height of the two on the right side and the left side.
  • the heights of the two pieces are inconsistent, and the difference in height between them is the aforementioned step concept.
  • a set of aluminum silicate right longitudinal support plates 62 is the same example, and the description will not be repeated. Since a set of aluminum silicate left and right longitudinal support plates 61 and 62 have steps, the widths of the aforementioned aluminum silicate fiber plates 64 are also different accordingly.
  • the width of one aluminosilicate fiberboard 64 is narrower than the upper two.
  • the aforementioned aluminum silicate left longitudinal support plate 61 and aluminum silicate right longitudinal support plate 62 are aluminum silicate fiberboards;
  • the aforementioned frame mechanism 7 includes a frame tube left support bar 71 and a frame tube right support bar 72 and skeleton tubes 73 spaced along the length direction of the aforementioned aluminum silicate felt 63, the cross-sectional shape of the left support bar 71 of the skeleton tube is L-shaped and fixed on the left cavity wall of the furnace shell cavity of the aforementioned furnace shell 21 and is connected with the left cavity wall of the furnace shell 21.
  • the cross-sectional shape of the right support bar 72 of the skeleton tube is L-shaped and fixed on the right cavity wall of the furnace shell cavity of the furnace shell 21 and corresponding to the right end of the skeleton tube 73, the skeleton tube 73
  • the left end of the frame tube is supported on the left support bar 71 of the frame tube
  • the middle part is inserted into the aforementioned aluminum silicate felt 63 and penetrates from the left side to the right side of the aluminum silicate felt 63
  • the right end of the frame tube 73 is supported on the right support bar of the frame tube. 72 on.
  • the aluminum silicate felt 63 can be supported in a grid-like or grid-like shape, and is sufficiently resistant to the upper part of the aluminum silicate felt 63 .
  • the accumulated weight of the aluminum silicate fiber board 64 applied to the aluminum silicate felt 63, especially, the weight of the aluminum silicate felt 63 and the aluminum silicate fiber board 64 is relatively light, so the safety of the flat furnace top can be fully guaranteed, Collapse and/or deflection will not occur, especially under the support of the skeleton tube 73 .
  • the structural system of the above-mentioned furnace top sealing mechanism 6 also includes a plurality of thermocouples 65 for measuring the temperature of the above-mentioned furnace 25 in different temperature zones, that is, there is at least one thermocouple corresponding to each temperature zone.
  • the thermocouple 65 is inserted into the furnace chamber 25 through the aluminosilicate fiber board 64 and the aluminum silicate felt 63 from top to bottom.
  • side thermocouples 9 can also be provided on the side of the furnace body 1 and corresponding to each temperature zone.
  • the aforementioned skeleton tube 73 is an alumina ceramic tube;
  • the aforementioned furnace shell 21 is a steel furnace shell such as a carbon steel furnace shell.

Abstract

La présente invention concerne une structure supérieure de four d'un four à rouleaux légers, se rapportant au domaine technique des fours. Le four à rouleau léger comprend : une base ; un corps de four, comprenant un boîtier de four, un revêtement de fond de four, un revêtement de paroi de four gauche, un revêtement de paroi de four droit et un foyer, le revêtement de fond de four, le revêtement de paroi de four gauche et le revêtement de paroi de four droit définissant ensemble le foyer ; un rouleau de transport de fouloir, l'extrémité gauche du rouleau de transport de fouloir s'étendant hors du côté gauche du corps de four, la partie centrale du rouleau de transport de fouloir correspondant au foyer, et l'extrémité droite du rouleau de transport de fouloir s'étendant hors du côté droit du corps de four ; et des tiges de chauffage supérieure et inférieure, les extrémités gauche des tiges de chauffage supérieure et inférieure étant supportées sur le revêtement de paroi de four gauche, et les extrémités droites des tiges de chauffage supérieure et inférieure étant supportées sur le revêtement de paroi de four droit. La structure supérieure de four comprend un mécanisme d'étanchéité et de protection de dessus de four et est caractérisée en ce qu'elle comprend en outre des mécanismes d'ossature qui sont insérés dans le mécanisme d'étanchéité et de protection de dessus de four dans un mode espacé dans l'état supporté sur les côtés opposés du boîtier de four ; le mécanisme d'étanchéité et de protection de dessus de four est disposé horizontalement ; le côté gauche du mécanisme d'étanchéité et de protection de dessus de four est en ajustement de support avec la partie supérieure du revêtement de paroi de four gauche ; la partie centrale du mécanisme d'étanchéité et de protection de dessus de four correspond à la partie supérieure du foyer ; et le côté droit du mécanisme d'étanchéité et de protection de dessus de four est en ajustement de support avec la partie supérieure du revêtement de paroi de four droit. La présente invention augmente le rendement en temps unitaire, réduit la consommation d'énergie, réduit le poids propre du corps de four, et présente une structure simple.
PCT/CN2020/134795 2020-09-25 2020-12-09 Structure supérieure de four de four à rouleaux légers WO2022062190A1 (fr)

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