CN116839358B - Atmosphere end burning furnace capable of saving nitrogen - Google Patents
Atmosphere end burning furnace capable of saving nitrogen Download PDFInfo
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- CN116839358B CN116839358B CN202311002319.3A CN202311002319A CN116839358B CN 116839358 B CN116839358 B CN 116839358B CN 202311002319 A CN202311002319 A CN 202311002319A CN 116839358 B CN116839358 B CN 116839358B
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 90
- 239000012298 atmosphere Substances 0.000 title claims abstract description 51
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 44
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 239
- 238000000034 method Methods 0.000 claims abstract description 17
- 238000007789 sealing Methods 0.000 claims abstract description 17
- 238000010438 heat treatment Methods 0.000 claims abstract description 14
- 238000010304 firing Methods 0.000 claims abstract description 4
- 238000007599 discharging Methods 0.000 claims description 17
- 230000005540 biological transmission Effects 0.000 claims description 15
- 238000001035 drying Methods 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 10
- 230000007246 mechanism Effects 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 230000008569 process Effects 0.000 abstract description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000005245 sintering Methods 0.000 abstract description 6
- 230000007547 defect Effects 0.000 abstract description 5
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 9
- 239000012299 nitrogen atmosphere Substances 0.000 description 8
- 238000010521 absorption reaction Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000002250 absorbent Substances 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 230000002745 absorbent Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000011358 absorbing material Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
Classifications
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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
- F27B9/04—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity adapted for treating the charge in vacuum or special atmosphere
- F27B9/045—Furnaces with controlled atmosphere
- F27B9/047—Furnaces with controlled atmosphere the atmosphere consisting of protective gases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B13/00—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement
- F26B13/10—Arrangements for feeding, heating or supporting materials; Controlling movement, tension or position of materials
- F26B13/14—Rollers, drums, cylinders; Arrangement of drives, supports, bearings, cleaning
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B13/00—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement
- F26B13/24—Arrangements of devices using drying processes not involving heating
- F26B13/26—Arrangements of devices using drying processes not involving heating using sorbent surfaces, e.g. bands or coverings on rollers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B23/00—Heating arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B5/00—Drying solid materials or objects by processes not involving the application of heat
- F26B5/16—Drying solid materials or objects by processes not involving the application of heat by contact with sorbent bodies, e.g. absorbent mould; by admixture with sorbent materials
-
- 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
- F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
- F27B9/20—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace
- F27B9/24—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace being carried by a conveyor
- F27B9/243—Endless-strand conveyor
-
- 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
- F27B9/36—Arrangements of heating devices
-
- 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
- F27B9/38—Arrangements of devices for charging
-
- 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
- F27B9/39—Arrangements of devices for discharging
-
- 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
- F27B9/40—Arrangements of controlling or monitoring devices
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Textile Engineering (AREA)
- Sustainable Development (AREA)
- Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention relates to the technical field of electronic component end sintering equipment, in particular to an atmosphere end burning furnace capable of saving nitrogen; comprising the following steps: the furnace body frame is used as a mounting platform, and a heating and heat-preserving furnace body is arranged at the upper position inside the furnace body frame; the heating and heat-preserving furnace body can heat the product; an atmosphere protection furnace liner is also arranged in the furnace body frame; the atmosphere protection furnace chamber provides a required atmosphere environment for the product and passes through the middle of the heating and heat preserving furnace body; the controller is used for controlling the automatic operation of the atmosphere burning furnace; the atmosphere end burning furnace further comprises: the feeding bin is connected to the feeding side of the furnace body frame; the invention aims at solving the problem of larger nitrogen consumption of the atmosphere end-firing furnace in the process of sintering electronic components, and realizes sealing of the furnace liner by adopting a water sealing method and a nitrogen curtain, thereby solving the defect of high nitrogen energy consumption of the existing equipment and reducing the production cost.
Description
Technical Field
The invention relates to the technical field of electronic component end sintering equipment, in particular to an atmosphere end burning furnace capable of saving nitrogen.
Background
The end burning process of the electronic component is generally realized by adopting a nitrogen atmosphere end burning furnace (atmosphere type mesh belt furnace); the existing nitrogen atmosphere end burning furnaces with various specifications in the market are limited by the original equipment design concept, and have the defect of great loss of nitrogen.
Taking a nitrogen atmosphere end burning furnace with a mesh belt with a width of 400mm as an example, the nitrogen consumption generally reaches about 1800L/min in daily production, and the nitrogen consumption is increased or decreased according to the length of equipment and an exhaust structure. This consumption is acceptable for continuous mass production, but for some companies with discontinuous small mass production, the energy consumption is totally unacceptable. The nitrogen atmosphere end burning furnaces in the market are all continuous mesh belt furnaces, and are characterized in that mesh belt conveying products enter a stainless steel pipe (furnace) with two open ends, and in order to ensure the atmosphere in the furnace, the two ends of an inlet and an outlet of the furnace are provided with nitrogen curtain structures, and the structures are mainly consumed by nitrogen.
The number of nitrogen curtains of the existing end burning furnace is 4, the nitrogen curtains are respectively designed at the upper and lower positions of an inlet and an outlet, and the nitrogen consumption of a single air curtain is generally 250-300L/min, so that the nitrogen consumption of the visible air curtain accounts for more than half of the total nitrogen consumption.
In view of the above, the present invention provides an atmosphere end burning furnace capable of saving nitrogen, which solves the above technical problems.
Disclosure of Invention
In order to make up the defects of the prior art, the invention provides the atmosphere end burning furnace capable of saving nitrogen, and aims to solve the problem that the atmosphere end burning furnace consumes large nitrogen in the process of sintering electronic components.
The technical scheme adopted for solving the technical problems is as follows: the invention relates to an atmosphere end burning furnace capable of saving nitrogen, which comprises the following steps:
the furnace body frame is used as a mounting platform, and a heating and heat-preserving furnace body is arranged at the upper position inside the furnace body frame; the heating and heat-preserving furnace body can heat the product according to the process requirements; an atmosphere protection furnace liner is also arranged in the furnace body frame; the atmosphere protection furnace chamber provides a required atmosphere environment for the product and passes through the middle of the heating and heat preserving furnace body; the furnace body frame comprises an iron frame, a protection hanging plate, a front workbench, a rear workbench and a mesh belt conveying mechanism;
the controller is used for controlling the automatic operation of the atmosphere burning furnace;
the atmosphere end burning furnace further comprises:
the feeding bin is connected to the feeding side of the furnace body frame and is in sealing connection with the atmosphere protection furnace liner;
the discharging bin is connected to the discharging side of the furnace body frame and is in sealing connection with the atmosphere protection furnace liner; the water tanks filled with water are respectively arranged in the feeding bin and the discharging bin;
a conveyor belt that is an endless belt-like metal chain, such as an endless belt-like stainless steel belt chain; the conveying mesh belt passes through a water tank in the feeding bin and enters the atmosphere protection furnace, then is discharged out of the hearth from the water tank in the discharging bin, and continuously runs through a power mechanism on the furnace body frame;
and the drying assembly is arranged in the feeding bin and the discharging bin and is used for drying the conveying mesh belt.
Preferably, the water tank is arranged in a U-shaped channel; the conveying net belt passes through the water tank through the guide wheel; the two groove walls of the water groove, which are close to the position of the drying assembly, are fixedly connected with a water removal box; the inner side of the water removal box is in sliding sealing connection with a sliding plate; one side of the sliding plate, which is close to each other, is provided with a unidirectional air inlet; the inside and the outside of the water removal box are communicated through a one-way air outlet; one surface of the two sliding plates, which is close to each other, is connected with a water absorbing piece; the conveying mesh belt passes through the two water absorbing pieces; the water absorbing piece can absorb water on the conveying mesh belt; the sliding plate is connected with the groove wall corresponding to the water groove through a spring.
Preferably, the one-way air outlet is arranged on the side wall of the water removal box, and an air inlet of the one-way air outlet is communicated with air above the water removal box; the width direction of the water removal box extends to the other two groove walls of the water groove; the inner wall of the dewatering box below is communicated with the lower part of the dewatering box through a one-way water outlet.
Preferably, both ends of the sliding plate in the horizontal direction are fixedly connected with the support plate; the support plate is arranged on one surface of the two sliding plates, which is close to each other; two rotating rods are rotatably connected between the two corresponding support plates; the rotating rod is fixedly connected with a rotating roller; the water absorbing piece is in a ring belt shape; the water absorbing piece is connected to the two rotating rollers in a transmission way; the water absorbing piece is divided into an inner transmission layer and an outer water absorbing layer; the water-absorbing layer may be made of a water-absorbing material, such as a sponge.
Preferably, the upper edge of the water absorbing piece in the horizontal direction is tightly attached to the support plate; the support plate is tightly attached to the inner wall of the water removal box; the transmission layer on the inner side of the water absorbing piece is made of airtight materials.
Preferably, the distance between the rotating roller at the lower position and the inner wall of the water removal box at the lower position is smaller than the thickness of the water absorption piece.
Preferably, the rotating rod is eccentrically and fixedly connected with the rotating roller; the distance between the rotating roller at the lower position and the inner wall of the water removal box at the lower position is intermittently smaller than the thickness of the water absorbing piece after the rotating rod rotates.
Preferably, the unidirectional air outlet hole opening on the water removal box is obliquely downwards aligned with the water absorbing piece on the other side of the conveying mesh belt; the unidirectional water outlet orifice on the water removal box is far away from the conveying mesh belt.
The beneficial effects of the invention are as follows:
1. the invention aims at solving the problem of larger nitrogen consumption of the atmosphere end-firing furnace in the process of sintering electronic components, and realizes sealing of the furnace liner by adopting a water sealing method and a nitrogen curtain, thereby solving the defect of high nitrogen energy consumption of the existing equipment and reducing the production cost.
2. According to the invention, the left water removing box and the right water removing box are changed in air pressure by shaking the conveying mesh belt back and forth, so that redundant water on the water absorbing piece is absorbed, the water absorbing effect of the water absorbing piece on the conveying mesh belt is ensured, after the water on the conveying mesh belt is absorbed by the water absorbing piece, the drying efficiency of the drying assembly on the conveying mesh belt is accelerated, and the energy loss is reduced.
3. According to the invention, the water absorbing member is driven around the two rotating rollers under the friction force of the conveying mesh belt, and the rotating rollers and the rotating rods are eccentrically and rotatably arranged, so that the water absorbing member is intermittently driven, on one hand, the water absorbing effect of the water absorbing member on the conveying mesh belt is ensured, and on the other hand, the water on the water absorbing member is further discharged.
Drawings
The invention will be further described with reference to the drawings and embodiments.
FIG. 1 is a block diagram of the present invention;
FIG. 2 is a diagram of a prior art burner curtain;
FIG. 3 is a block diagram of a feed bin of the present invention;
FIG. 4 is a block diagram of the discharge bin of the present invention;
FIG. 5 is a perspective view of the sink of the present invention;
FIG. 6 is a cross-sectional view of a sink in accordance with the present invention;
FIG. 7 is a schematic illustration of a conveyor belt passing between two dewatering boxes in accordance with the present invention;
FIG. 8 is a block diagram of a water removal cartridge of the present invention;
fig. 9 is an enlarged view at a in fig. 8;
FIG. 10 is an exploded view of the cartridge, slide, spring and absorbent member.
In the figure: furnace body frame 1, heating heat preservation furnace body 11, atmosphere protection stove courage 12, pan feeding storehouse 2, basin 21, stoving subassembly 22, pan feeding conveyer belt 23, pan feeding gate 24, pan feeding nitrogen gas curtain 25, ejection of compact storehouse 3, ejection of compact nitrogen gas curtain 31, ejection of compact gate 32, conveyer belt 4, dewatering box 5, one-way venthole 51, one-way apopore 52, slide 6, one-way inlet port 61, spring 62, extension board 63, commentaries on classics stick 64, commentaries on classics roller 65, water absorbing member 7, drive layer 71, water absorbing layer 72.
Detailed Description
The invention is further described in connection with the following detailed description in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
As shown in fig. 1 to 10, the present invention is described in detail in the following embodiments:
example 1:
an atmosphere end firing furnace for saving nitrogen, comprising:
the furnace body frame 1 is used as a mounting platform, and a heating and heat-preserving furnace body 11 is arranged at the upper position inside the furnace body frame 1; the heating and heat preserving furnace body 11 can heat the product according to the process requirement; an atmosphere protection furnace liner 12 is also arranged in the furnace body frame 1; the atmosphere protection furnace 12 provides a required atmosphere environment for the product and passes through the middle of the heating and heat preserving furnace body 11; the furnace body frame 1 comprises an iron frame, a protection hanging plate, a front workbench, a rear workbench and a mesh belt conveying mechanism;
the controller is used for controlling the automatic operation of the atmosphere burning furnace;
the atmosphere end burning furnace further comprises:
the feeding bin 2 is connected to the feeding side of the furnace body frame 1 and is in sealing connection with the atmosphere protection furnace liner 12;
the discharging bin 3 is connected to the discharging side of the furnace body frame 1 and is in sealing connection with the atmosphere protection furnace liner 12; a water tank 21 filled with water is arranged in each of the feeding bin 2 and the discharging bin 3;
a conveyor mesh belt 4, wherein the conveyor mesh belt 4 is an endless belt-shaped metal chain, such as an endless belt-shaped stainless steel mesh chain; the conveying mesh belt 4 passes through a water tank 21 in the feeding bin 2 and enters the atmosphere protection furnace 12, then is discharged out of the furnace from the water tank 21 in the discharging bin 3, and continuously runs through a power mechanism on the furnace body frame 1;
the drying assembly 22 is arranged in the feeding bin 2 and the discharging bin 3 and is used for drying the conveying mesh belt 4;
when the device works, the existing market has nitrogen atmosphere end burning furnaces with various specifications, and the device is limited by the original equipment design concept, so that the device has the defect of great loss of nitrogen; taking a nitrogen atmosphere end burning furnace with a width of 400mm as an example, the nitrogen consumption generally reaches about 1800L/min in daily production, and the nitrogen consumption is increased or decreased according to the length of equipment and an exhaust structure; this consumption is acceptable for mass continuous production, but for some companies with small mass discontinuous production, the energy consumption is totally unacceptable; the end furnace for burning nitrogen atmosphere in the market is a continuous mesh belt furnace, and is characterized in that mesh belts convey products into a stainless steel pipe (furnace) with two open ends, and in order to ensure the atmosphere in the furnace, the two ends of an inlet and an outlet of the furnace are provided with nitrogen curtain structures, wherein the nitrogen curtain structures are mainly consumed by nitrogen; the number of nitrogen curtains of the existing end burning furnace is 4, the nitrogen curtains are respectively designed at the upper and lower positions of an inlet and an outlet, and the nitrogen consumption of a single air curtain is generally 250-300L/min, so that the nitrogen consumption of the visible air curtain accounts for more than half of the total nitrogen consumption; the nitrogen curtain is provided with a sealed square flat box on or below the inlet and outlet of the furnace; the flat box is provided with an air inlet interface which is connected with the flowmeter and can control the air flow, one surface of the furnace liner is welded with the furnace liner in a sealing way, and a plurality of small holes which are uniformly distributed are formed in the surface of the furnace liner, and the air flow is ejected through the small holes to form an air curtain;
the feeding bin 2 and the discharging bin 3 are innovation points of distinguishing the existing equipment in the market, the feeding bin 2 and the discharging bin 3 are both in sealing connection with the atmosphere protection furnace 12, so that products can be conveniently assembled and disassembled, and the conveying mesh belt 4 can be conveniently and continuously fed and discharged, and the key of realizing nitrogen loss reduction is realized; in the feeding bin 2, a conveying mesh belt 4 enters the feeding bin 2 through a water tank 21, the conveying mesh belt 4 is heated and dried through a drying assembly 22 in the feeding bin 2 and is guided by air flow so that most of water vapor is discharged into the feeding bin 2, the dried conveying mesh belt 4 enters the upper part of the feeding bin 2, the height of the dried conveying mesh belt is flush with the working surface of an atmosphere protection furnace 12, a feeding conveying belt 23 intermittently moves to realize that materials are placed on the conveying mesh belt 4, the materials are conveyed by the conveying mesh belt 4 and are conveyed through a heating and heat-preserving furnace body 11, the materials are sintered, the feeding bin 2 is provided with a feeding gate 24 which can be opened in a manual or automatic mode, after the feeding gate 24 is opened, the materials can be placed on the feeding conveying belt 23 by hands or by a machine, the feeding conveying belt 23 is provided with a feeding nitrogen curtain 25 up and down, and the air curtain can be automatically opened before the feeding gate 24 is opened, and the external air is isolated; after the product is burned, the product enters the discharge bin 3, the product is conveyed onto a discharge conveying belt by a conveying mesh belt 4, a discharge nitrogen curtain 31 is opened, after a discharge gate 32 is opened, the material can be taken out by hands or by a machine, the conveying mesh belt 4 passes through a water tank 21 in the discharge bin 3 and then goes out of the discharge bin 3, and then the product is redirected from the bottom of a furnace body frame 1 to the feed bin 2, so that the circulation is formed, and the continuous conveying of the material is realized;
the equipment is used for continuously sintering the end of the electronic component in the nitrogen atmosphere, and has strict requirements on the hearth atmosphere; different from the prior equipment which adopts a nitrogen curtain to block the influence of external air on the atmosphere of a hearth, the equipment adopts a mode of combining a water sealing method with the nitrogen curtain to realize the sealing of the atmosphere protection furnace 12; the device adopts a water seal method to isolate the external air, so that the conveying mesh belt 4 can still move continuously; the intermittent gate is adopted to realize the great reduction of nitrogen consumption by adopting an open furnace of the prior equipment.
Example 2, this example differs from example 1 in that:
the water tank 21 is arranged in a U-shaped channel; the conveying mesh belt 4 passes through the water tank 21 through a guide wheel; the two groove walls of the water groove 21, which are close to the drying assembly 22, are fixedly connected with a water removal box 5; the inner side of the water removal box 5 is in sliding sealing connection with a sliding plate 6; one-way air inlets 61 are formed in the surfaces, close to each other, of the sliding plates 6; the inside and the outside of the water removal box 5 are communicated through a one-way air outlet hole 51; one surface of the two sliding plates 6, which are close to each other, is connected with a water absorbing piece 7; the conveying mesh belt 4 passes through two water absorbing pieces 7; the water absorbing piece 7 can absorb the water on the conveying mesh belt 4; the sliding plate 6 is connected with the groove wall corresponding to the water groove 21 through a spring 62.
In this embodiment, the unidirectional air outlet hole 51 is disposed on the upper side wall of the water removal box 5, and an air inlet of the unidirectional air outlet hole 51 is in air communication with the upper side of the water removal box 5; the width direction of the water removal box 5 extends to the other two groove walls of the water groove 21; the inner wall of the water removal box 5, which is positioned below, is communicated with the lower part of the water removal box 5 through a one-way water outlet 52;
in operation, in order to facilitate the description of the present embodiment, the present embodiment designates two water removal cartridges 5 as left water removal cartridge 5 and right water removal cartridge 5, simultaneously designates two slide plates 6 as left slide plate 6 and right slide plate 6, simultaneously designates two water absorbing members 7 as left water absorbing member 7 and right water absorbing member 7, and designates two springs 62 as left spring 62 and right spring 62; the conveying net belt 4 passes through one end of the water tank 21 to the other end under the guide effect of the guide wheel, the other end of the water tank 21 is close to one end of the drying assembly 22, two water removal boxes 5 are also arranged on the groove wall of the other end of the water tank 21, in the transmission process of the conveying net belt 4 by the guide wheel, the surface of the conveying net belt 4 is uneven, so that the conveying net belt 4 can shake or swing back and forth along with the transmission process of the guide wheel, in the movement process of the conveying net belt 4 towards the left water removal box 5, the conveying net belt 4 can drive the left sliding plate 6 through the left water absorption piece 7 and overcome the movement of the left spring 62, gas in the left water removal box 5 is compressed and discharged along the unidirectional water outlet hole 51 on the left water removal box 5, liquid in the left water removal box 5 is compressed and discharged along the unidirectional water outlet hole 52 on the left water removal box 5, in the movement process of the conveying net belt 4 towards the left water removal box 5, the right spring 62 can drive the right sliding plate 6 and the right water absorption piece 7 to abut against the conveying net belt 4 and move towards the left water removal box 5, and the negative pressure is formed by the left water absorption piece 7 and the right water absorption piece 6 is increased along the left air outlet hole 6 and the left air outlet hole 6; along with the movement process of the conveying mesh belt 4 towards the right dewatering box 5, the conveying mesh belt 4 drives the right sliding plate 6 through the right water absorbing piece 7 and overcomes the movement of the right spring 62, gas and liquid in the right dewatering box 5 are discharged under pressure, negative pressure is formed in the left dewatering box 5 at the same time, redundant moisture on the left water absorbing piece 7 is sucked away, the air pressure in the left dewatering box 5 and the right dewatering box 5 is changed through the back and forth shaking of the conveying mesh belt 4, redundant moisture on the water absorbing piece 7 is sucked away, the water absorbing effect of the water absorbing piece 7 on the conveying mesh belt 4 is guaranteed, after the moisture on the conveying mesh belt 4 is sucked away by the water absorbing piece 7, the drying efficiency of the drying assembly 22 on the conveying mesh belt 4 is quickened, the energy loss is reduced, and meanwhile, the moisture residue on the conveying mesh belt 4 is also reduced;
in this embodiment, the unidirectional water outlet 52 is disposed at a position below the water removal box 5, after water is sucked into the water removal box 5, water in the water removal box 5 falls at a position close to the unidirectional water outlet 52 under the action of gravity, and after the water removal box 5 is pressed, water at a position below the water removal box 5 is discharged along the unidirectional water outlet 52; in this embodiment, the unidirectional air outlet hole 51 is disposed at the upper position of the water removing box 5, after the air is sucked into the water removing box 5, the air in the water removing box 5 is compressed and discharged along the unidirectional air outlet hole 51, the air in the water removing box 5 is compressed and discharged above the water removing box 5, the width direction of the water removing box 5 extends to the other two groove walls of the water groove 21, so the air above the water removing box 5 can enter between the two water absorbing pieces 7 along the movement gap of the conveying mesh belt 4, and the air passes over and takes away the water on the water absorbing pieces 7 and enters into the corresponding water removing box 5 along the unidirectional air inlet hole 61, so the redundant water on the water absorbing pieces 7 can be taken away more quickly under the circulating air flow, and the water absorbing effect of the water absorbing pieces 7 is ensured.
Example 3, this example differs from example 2 in that:
the two ends of the sliding plate 6 in the horizontal direction are fixedly connected with supporting plates 63; the support plate 63 is arranged on one surface of the two sliding plates 6, which is close to each other; two corresponding support plates 63 are rotatably connected with two rotating rods 64; the rotating rod 64 is fixedly connected with a rotating roller 65; the water absorbing piece 7 is in a ring belt shape; the water absorbing piece 7 is connected to two rotating rollers 65 in a transmission way; the water absorbing element 7 is divided into an inner transmission layer 71 and an outer water absorbing layer 72; the water-absorbent layer 72 may be made of a water-absorbent material, such as a sponge.
In this embodiment, the edge of the water absorbing member 7 in the horizontal direction is tightly attached to the support plate 63; the support plate 63 is tightly attached to the inner wall of the water removal box 5; the transmission layer 71 inside the absorbent member 7 is made of an airtight material.
In this embodiment, the distance between the lower rotating roller 65 and the lower inner wall of the water removal cartridge 5 is smaller than the thickness of the water absorbing member 7.
In this embodiment, the rotating rod 64 is eccentrically and fixedly connected with the rotating roller 65; the distance between the lower rotating roller 65 and the lower inner wall of the water removal box 5 is intermittently smaller than the thickness of the water absorbing member 7 after the rotating rod 64 rotates.
In this embodiment, the hole openings of the unidirectional air outlet holes 51 on the water removal box 5 are obliquely aligned downwards to the water absorbing piece 7 on the other side of the conveying mesh belt 4; the orifice of the unidirectional water outlet 52 on the water removal box 5 is far away from the conveying mesh belt 4;
when in operation, the conveying mesh belt 4 moves between the two water absorbing pieces 7 in the transmission process in the water tank 21 under the action of the guide wheel, the two water absorbing pieces 7 are abutted against the two sides of the conveying mesh belt 4 under the action of the corresponding springs 62, the outer layer of the water absorbing piece 7 is provided with a water absorbing layer 72 with water absorbing effect, the water on the conveying mesh belt 4 is absorbed by the water absorbing layer 72 on the water absorbing piece 7, the conveying mesh belt 4 and the water absorbing piece 7 can generate certain friction force, the water absorbing piece 7 is transmitted on the outer walls of the two corresponding rotating rolls 65 under the action of the conveying mesh belt 4, when the rotating rolls 65 at the lower position rotate along with the eccentrically connected rotating rods 64, the outer wall of the rotating roll 65 at the lower position is circularly close to or far away from the inner wall at the lower part of the water removing box 5, so that the gap circulation between the outer wall of the rotating roll 65 at the lower position and the inner wall at the lower part of the water removing box 5 is reduced or increased, when the gap between the outer wall of the lower rotating roller 65 and the lower inner wall of the dewatering box 5 is reduced, the lower rotating roller 65 extrudes the water absorbing member 7, water in the water absorbing member 7 is extruded after being pressed, the water absorbing member 7 stops transmitting on the two rotating rollers 65 in the extrusion process of the lower rotating roller 65, the water absorbing effect of the water absorbing member 7 on the conveying mesh belt 4 is ensured, the lower rotating roller 65 can release the extrusion of the water absorbing member 7 in the gap between the outer wall of the lower rotating roller 65 and the lower inner wall of the dewatering box 5 in the process of increasing the gap, so that the water absorbing member 7 is transmitted around the two rotating rollers 65 under the friction force of the conveying mesh belt 4, the water absorbing member 7 is eccentrically rotated with the rotating rod 64 through the rotating roller 65, the intermittent transmission of the water absorbing member 7 is ensured, the water absorbing effect of the water absorbing member 7 on the conveying mesh belt 4 is ensured, on the other hand, the water on the water absorbing piece 7 is further discharged;
in this embodiment, the water absorbing member 7 is tightly attached to the support plate 63 in the horizontal direction, and the support plate 63 is tightly attached to the inner wall of the water removing box 5, and the transmission layer 71 on the inner side of the water absorbing member 7 is airtight, so that air flow can only flow into the water removing box 5 along the up-down gap between the annular water absorbing member 7 and the water removing box 5, and enters the water removing box 5 along the unidirectional air inlet hole 61 on the sliding plate 6, so that the air flow can intensively absorb the residual water on the water absorbing member 7; the rotating roller 65 and the rotating rod 64 are eccentrically connected, so that the water absorbing piece 7 can shake along with the rotation of the rotating roller 65, excessive water on the water absorbing piece 7 is convenient to drop in the shaking process of the water absorbing piece 7, and the water absorbing piece 7 transmits shaking to the conveying mesh belt 4, so that the conveying mesh belt 4 further shakes, the water on the conveying mesh belt 4 is further shaken off, and the water content on the conveying mesh belt 4 is reduced;
the air in the dewatering box 5 is pressed and discharged along the unidirectional air outlet hole 51, and the air flow discharged from the hole opening of the unidirectional air outlet hole 51 impacts the conveying mesh belt 4 because the hole opening of the unidirectional air outlet hole 51 is aligned with the part of the water absorbing piece 7 at the other side of the conveying mesh belt 4, which is not contacted with the conveying mesh belt 4, and the residual moisture on the conveying mesh belt 4 is further sprayed to the part of the other water absorbing piece 7 which is not contacted with the conveying mesh belt 4, and the water absorbing piece 7 moves the moisture towards the direction away from the conveying mesh belt 4 under the continuous transmission of the other water absorbing piece 7 and is extruded by the action of the rotating roller 65 which is arranged below; the liquid in the dewatering box 5 in this embodiment is pressed and discharged along the unidirectional water outlet 52, and the unidirectional water outlet 52 is far away from the conveying mesh belt 4, so that the liquid discharged from the unidirectional water outlet 52 is prevented from falling back onto the conveying mesh belt 4, and the liquid discharged from the unidirectional water outlet 52 flows down along the wall of the water tank 21.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in fig. 1, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the scope of the present invention, and furthermore, the terms "first", "second", "third", etc. are merely used for distinguishing the description, and should not be construed as indicating or implying relative importance.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (2)
1. An atmosphere end firing furnace for saving nitrogen, comprising:
the furnace body frame (1), the furnace body frame (1) is used as a mounting platform, and a heating and heat-preserving furnace body (11) is arranged at the upper position inside the furnace body frame (1); the heating and heat preserving furnace body (11) can heat the product; an atmosphere protection furnace liner (12) is also arranged in the furnace body frame (1); the atmosphere protection furnace pipe (12) provides a required atmosphere environment for the product and passes through the middle of the heating and heat preserving furnace body (11);
the controller is used for controlling the automatic operation of the atmosphere burning furnace;
the method is characterized in that the atmosphere end burning furnace further comprises:
the feeding bin (2) is connected to the feeding side of the furnace body frame (1) and is in sealing connection with the atmosphere protection furnace pipe (12);
the discharging bin (3) is connected to the discharging side of the furnace body frame (1) and is in sealing connection with the atmosphere protection furnace pipe (12); a water tank (21) filled with water is arranged in each of the feeding bin (2) and the discharging bin (3);
a conveying net belt (4), wherein the conveying net belt (4) is an endless belt-shaped metal chain; the conveying mesh belt (4) passes through a water tank (21) in the feeding bin (2) and enters the atmosphere protection furnace pipe (12), and then is discharged out of the furnace chamber from the water tank (21) in the discharging bin (3) and continuously runs through a power mechanism on the furnace body frame (1);
the drying assembly (22) is arranged in the feeding bin (2) and the discharging bin (3) and is used for drying the conveying mesh belt (4);
the water tank (21) is arranged in a U-shaped channel; the conveying mesh belt (4) passes through the water tank (21) through the guide wheel; the two groove walls of the water groove (21) close to the drying assembly (22) are fixedly connected with a water removal box (5); the inner side of the water removal box (5) is in sliding sealing connection with a sliding plate (6); one side of the sliding plate (6) close to each other is provided with a one-way air inlet hole (61); the inside and the outside of the water removal box (5) are communicated through a one-way air outlet hole (51); one surface of the two sliding plates (6) close to each other is connected with a water absorbing piece (7); the conveying mesh belt (4) passes through two water absorbing pieces (7); the water absorbing piece (7) can absorb water on the conveying mesh belt (4); the sliding plate (6) is connected with the groove wall corresponding to the water groove (21) through a spring (62);
the one-way air outlet hole (51) is arranged on the side wall of the water removal box (5), and an air inlet of the one-way air outlet hole (51) is communicated with air above the water removal box (5); the width direction of the water removal box (5) extends to the other two groove walls of the water groove (21); the inner wall of the water removal box (5) which is positioned below is communicated with the lower part of the water removal box (5) through a one-way water outlet (52);
two ends of the sliding plate (6) in the horizontal direction are fixedly connected with support plates (63); the support plate (63) is arranged on one surface of the two sliding plates (6) close to each other; two rotating rods (64) are rotatably connected between the two corresponding support plates (63); the rotating rod (64) is fixedly connected with a rotating roller (65); the water absorbing piece (7) is in a ring belt shape; the water absorbing piece (7) is connected to the two rotating rollers (65) in a transmission way; the water absorbing piece (7) is divided into an inner transmission layer (71) and an outer water absorbing layer (72);
the upper edge of the water absorbing piece (7) in the horizontal direction is tightly attached to the support plate (63); the support plate (63) is tightly attached to the inner wall of the water removal box (5); the transmission layer (71) on the inner side of the water absorbing piece (7) is made of an airtight material;
the distance between the rotating roller (65) at the lower position and the inner wall of the water removal box (5) at the lower position is smaller than the thickness of the water absorbing piece (7);
the rotating rod (64) is eccentrically and fixedly connected with the rotating roller (65); the distance between the rotating roller (65) at the lower position and the inner wall of the dewatering box (5) at the lower position is intermittently smaller than the thickness of the water absorbing piece (7) after the rotating rod (64) rotates.
2. The nitrogen-saving atmosphere furnace according to claim 1, wherein: the orifices of the unidirectional air outlet holes (51) on the water removal box (5) are obliquely downwards aligned with the water absorbing piece (7) on the other side of the conveying mesh belt (4); the orifice of the unidirectional water outlet (52) on the water removal box (5) is far away from the conveying mesh belt (4).
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| CN202311002319.3A CN116839358B (en) | 2023-08-09 | 2023-08-09 | Atmosphere end burning furnace capable of saving nitrogen |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311002319.3A CN116839358B (en) | 2023-08-09 | 2023-08-09 | Atmosphere end burning furnace capable of saving nitrogen |
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| CN116839358B true CN116839358B (en) | 2024-01-30 |
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| CN216838749U (en) * | 2021-11-29 | 2022-06-28 | 广东省汇林包装科技集团有限公司 | Straw pulp coiled material forming machine |
| CN217869000U (en) * | 2022-09-09 | 2022-11-22 | 南通航达热处理科技有限公司 | Mesh belt type furnace for brightness |
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| JPH1046236A (en) * | 1996-07-29 | 1998-02-17 | Nichia Chem Ind Ltd | Reducing gas circulating type reducing atmospheric furnace |
| JP2001141371A (en) * | 1999-11-11 | 2001-05-25 | Kanto Yakin Kogyo Kk | Atmosphere continuous furnace |
| JP2011080114A (en) * | 2009-10-07 | 2011-04-21 | Nippon Steel Engineering Co Ltd | Inlet side seal device of continuous annealing furnace |
| DE202009017481U1 (en) * | 2009-11-16 | 2010-06-17 | Otto Junker Gmbh | Device for gastight sealing of a furnace housing |
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| CN116839358A (en) | 2023-10-03 |
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