CN214388913U - Horizontal thin layer dryer with chain type scraper - Google Patents
Horizontal thin layer dryer with chain type scraper Download PDFInfo
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- CN214388913U CN214388913U CN202021936627.5U CN202021936627U CN214388913U CN 214388913 U CN214388913 U CN 214388913U CN 202021936627 U CN202021936627 U CN 202021936627U CN 214388913 U CN214388913 U CN 214388913U
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Abstract
The utility model discloses a horizontal thin layer desicator of band chain scraper blade, include: the drying box barrel comprises a feeding hole, a steam discharging hole and a discharging hole; the material heating system comprises two or more layers of heat transfer plates arranged at intervals along the height direction, and a first heating pipeline and a second heating pipeline which are respectively communicated with the inner cavities of the heat transfer plates; the inner cavity is used for accommodating a heating medium; the top of the heat transfer plate is used for distributing materials to be dried; each layer of heat transfer plate is used for carrying out heat conduction type heating on the material at the top of the heat transfer plate, and the heat transfer plate at the upper layer is used for carrying out heat radiation type heating on the material on the heat transfer plate below the heat transfer plate; the spreading and feeding system comprises a circulating conveying chain and a plurality of scraping plates arranged at intervals; the conveying chain is used for driving the scraper blade to move during operation so as to break up, distribute and convey materials through the scraper blade. This desicator passes through the cooperation of heat-conduction heating and thermal radiation heating, can promote heating efficiency and evaporation efficiency, can practice thrift the cost.
Description
Technical Field
The utility model relates to a drying device field especially relates to a take horizontal thin layer desicator of chain scraper blade.
Background
A dryer is a mechanical device that uses heat to evaporate moisture (generally, moisture or other volatile liquid components) in a material to obtain a material with a specified moisture content, and is a mechanical device for drying the material. The existing dryer can be divided into a direct heating type dryer and an indirect heating type dryer through a heating mode; for the indirect heating type dryer, the drying method specifically adopted by the dryer can be generally classified into: paddle driers, horizontal thin layer driers, horizontal disc driers, vertical disc driers, etc.
The existing indirect heating dryer has lower heating efficiency and drying efficiency.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides an aim at: the utility model provides a horizontal thin layer desicator of band chain formula scraper blade, it has promoted the heating efficiency of desicator through heat conduction heating and the cooperation of heat radiation heating mode, has improved the drying efficiency of material.
In order to achieve the purpose, the utility model adopts the following technical proposal:
a horizontal thin-layer dryer with chain scrapers, comprising:
the drying box barrel comprises a feeding hole, a steam discharging hole and a discharging hole;
the material heating system comprises two or more layers of heat transfer plates arranged at intervals along the height direction, and a first heating pipeline and a second heating pipeline which are respectively communicated with the inner cavities of the heat transfer plates; the inner cavity is used for accommodating a heating medium; the top of the heat transfer plate is used for distributing materials to be dried; each layer of heat transfer plate is used for carrying out heat conduction type heating on the material at the top of the heat transfer plate, and the heat transfer plate at the upper layer is used for carrying out heat radiation type heating on the material on the heat transfer plate below the heat transfer plate;
the spreading and feeding system comprises a circulating conveying chain and a plurality of scraping plates arranged at intervals along the length direction of the conveying chain; and a section of the conveying chain is arranged above each layer of the heat transfer plates and is used for driving the scraper blade to move during operation, so that materials on the heat transfer plates are scattered, distributed and conveyed through the scraper blade.
Preferably, the dryer further comprises a vacuum generator for reducing the air pressure inside the cylinder of the drying box.
Preferably, the first heating pipeline is connected with the second heating pipeline, and the dryer further comprises a medium circulating pump and a heat pump system; the heat pump system is used for recovering the steam discharged by the steam outlet and heating the heating medium in the second heating pipeline by utilizing the heat in the recovered steam; the medium circulating pump is used for conveying the heated heating medium in the second heating pipeline to the first heating pipeline and conveying the heated heating medium into the heat transfer plates.
Preferably, the heat transfer plate is a container-shaped heat transfer plate with a side wall arranged on the periphery of an upper opening, and the heat transfer plate is also provided with a discharge port; when the discharge port is opened, the materials on the heat transfer plates can be conveyed to the heat transfer plate of the next layer or the bottom of the cylinder body of the drying box by the scraper.
Preferably, the material spreading and feeding system further comprises chain wheels arranged at two ends of the heat transfer plate and a driving mechanism in driving connection with at least one chain wheel; the conveying chain is an annular chain, and two ends of the annular chain are respectively sleeved on the chain wheels at two ends of the heat transfer plate; the scrapers respectively protrude from the upper side and the lower side of the conveying chain, and when the annular chain runs circumferentially, materials on the heat transfer plates on the upper layer and the heat transfer plates on the lower layer are scattered, distributed and conveyed.
Preferably, the material spreading and feeding system comprises one, two or more groups of material pushing and feeding mechanisms; each group of material pushing and feeding mechanisms comprises two conveying chains and a plurality of scraping plates, the two conveying chains are arranged at intervals along the axial direction of the chain wheel, the scraping plates are fixed between the two conveying chains, and the plurality of scraping plates are arranged at intervals along the circumferential direction of the conveying chains; and the conveying chains in each group of the material pushing and feeding mechanisms synchronously operate.
Preferably, the heat transfer plate comprises a top plate and a bottom plate, and the top plate and the bottom plate are connected to form the closed inner cavity; a medium inlet and a medium outlet are formed in the cavity wall of the inner cavity, the medium inlet is communicated with the first heating pipeline, and the medium outlet is communicated with the second heating pipeline; and a turbulent flow structure is arranged in the inner cavity.
Preferably, the top plate is a corrugated plate, and the wave troughs of the corrugated plate are connected with the bottom plate; the heat transfer plate further comprises a side plate, and the side plate is connected with the corrugated plate and the bottom plate respectively to seal the inner cavity.
Preferably, a plurality of inner cavities are formed in the heat transfer plate, the inner cavities are isolated from each other, and the inner cavities are sequentially arranged along the length direction of the heat transfer plate; and the wall of each inner cavity is provided with a medium inlet and a medium outlet, the medium inlet is communicated with the first heating pipeline, and the medium outlet is communicated with the second heating pipeline.
Preferably, the material to be dried is a liquid material, a powdery material, kitchen garbage or sludge; the heat transfer plates are pressure-bearing heat transfer plates, and the heat transfer plates are stainless steel heat transfer plates or carbon steel heat transfer plates; the cylinder body of the drying box is a stainless steel cylinder body or a carbon steel cylinder body; the heating medium is steam, hot water, heat conduction oil or flue gas.
The utility model has the advantages that: set up the multilayer heat transfer plate, effectively utilize the heat radiation that adjacent layer heat transfer plate sent in order to heat the material, through the mode cooperation of heat-conduction heating and heat radiation heating, utilize heating medium's heat more high-efficiently, promoted the heating efficiency of material, the evaporation strength of unit area's material obtains improving, has promoted the drying efficiency of material, practices thrift the cost.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and examples.
FIG. 1 is a schematic structural diagram of a dryer according to an embodiment of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
fig. 3 is a second schematic structural diagram of a dryer according to an embodiment of the present invention;
fig. 4 is a third schematic structural diagram of a dryer according to an embodiment of the present invention;
FIG. 5 is a schematic structural view of the scraper of the dryer according to an embodiment of the present invention;
fig. 6 is a schematic view of the internal structure of the heat transfer plate of the dryer according to the embodiment of the present invention;
fig. 7 is a schematic structural view of the heat transfer plate of the dryer according to the embodiment of the present invention;
fig. 8 is a schematic structural view of a material pushing and feeding mechanism according to an embodiment of the present invention;
in the figure: 10. a drying box cylinder; 11. a feed inlet; 12. a steam exhaust port; 13. a discharge port; 14. a support; 21. a heat transfer plate; 2101. an inner cavity; 211. a top plate; 212. a base plate; 213. a turbulent flow structure; 214. a media inlet; 215. a media outlet; 22. a first heating line; 23. a second heating line; 31. a conveying chain; 32. a squeegee; 33. a sprocket; 34. a drive mechanism.
Detailed Description
In order to make the technical problems, technical solutions and technical effects achieved by the present invention more clear, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, unless otherwise explicitly specified or limited, the terms "connected" and "fixed" are to be understood broadly, e.g. as a fixed connection, a detachable connection or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The utility model provides a take horizontal thin layer desicator of chain scraper blade, it cooperates through heat-conduction heating and thermal radiation heating mode, has promoted the heating efficiency of desicator, has improved the drying efficiency of material.
As shown in fig. 1 to 8, in an embodiment of the horizontal thin-layer dryer with chain scraper of the present invention, the dryer includes:
a drying box cylinder 10 which comprises a feed inlet 11, a steam outlet 12 and a discharge outlet 13; the feed inlet 11 and the steam exhaust port 12 are respectively arranged at the top of the drying box cylinder 10, and the discharge outlet 13 is arranged at the bottom of the drying box cylinder 10;
the material heating system comprises two layers or three or more layers of heat transfer plates 21 arranged at intervals along the height direction, and a first heating pipeline 22 and a second heating pipeline 23 which are respectively communicated with an inner cavity 2101 of the heat transfer plates 21; the inner cavity 2101 is used for containing a heating medium; the top of the heat transfer plate 21 is used for placing materials to be dried; each layer of the heat transfer plates 21 is used for carrying out heat conduction type heating on the material on the top of the heat transfer plate, and the heat transfer plate 21 on the upper layer is used for carrying out heat radiation type heating on the material on the heat transfer plate 21 below the heat transfer plate 21;
the spreading and feeding system comprises a circulating conveying chain 31 and a plurality of scraping plates 32 arranged at intervals along the length direction of the conveying chain 31; the scraping plates 32 respectively protrude outwards from the upper side and the lower side of the conveying chain 31; a section of the conveying chain 31 is arranged above each layer of the heat transfer plates 21, and the conveying chain 31 is used for driving the scraper 32 to move during operation, so that materials on the heat transfer plates 21 below the conveying chain 31 are scattered, distributed and conveyed through the scraper 32; the scraper 32 is used for conveying the material on the heat transfer plate 21 from one end of the heat transfer plate 21 to the other end, and is also used for pushing the material out of the heat transfer plate 21, so that the material falls on the lower heat transfer plate 21 or the bottom of the dryer cylinder.
It should be noted that the steam in this embodiment refers to water vapor formed by evaporation of moisture in the material on the heat transfer plate 21 after being heated.
Wherein the heat transfer plates 21 of different layers are arranged such that the heat transfer plate 21 of the topmost layer is located below the feed port 11; the heat transfer plates 21 of the next layer are arranged to receive the material falling from the heat transfer plates 21 of the previous layer or to receive the material falling from said inlet 11. The number of layers of the heat transfer plates 21 may be designed according to the spatial size of the dry box cylinder 10.
In the dryer of the present invention, a heating medium is introduced into the inner cavity 2101 of the heat transfer plate 21, and a material to be dried is suitable for being introduced into the drying box cylinder 10 through the feed port 11, so that the material falls or is conveyed onto the heat transfer plate 21; the materials and the materials exchange heat with the heat transfer plate 21 in a heat conduction and heat radiation mode, moisture in the materials absorbs heat and evaporates, and the moisture is discharged out of the dryer through the steam outlet 12; meanwhile, the scraper 32 above the heat transfer plate 21 continuously moves along with the chain to break up the materials, so that the materials can be fully contacted with the heat transfer plate 21, and finally, the dry materials are discharged out of the dryer from the discharge port 13.
The existing indirect dryer usually heats materials only in a heat conduction mode, and the drying efficiency is limited.
The dryer of the utility model is provided with a plurality of layers of heat transfer plates 21 at intervals, so that the material on the top of the heat transfer plates 21 is contacted with the heat transfer plates 21, and the material is indirectly heated by the heating medium in the heat transfer plates 21 in a conduction way; the heat in the heating medium of the upper layer heat transfer plate 21 is transferred to the material on the adjacent lower layer heat transfer plate 21 in a heat radiation mode so as to heat the material on the lower layer in a heat radiation mode; through so setting up for treat that the dry material can heat through heat-conducting mode and thermal radiation's mode simultaneously, improved the heating efficiency of material, make the evaporation strength of unit area's material obtain improving, improved drying efficiency, can effectively utilize heating medium's heat to heat the material, can practice thrift drying cost, cost.
Further, the material to be dried may be, but is not limited to, a liquid material, or a powdery material, or kitchen waste, or sludge.
Further, the heating medium may be, but is not limited to, steam, or hot water, or diathermic oil, or flue gas.
Further, in another embodiment of the horizontal thin-layer dryer with chain scraper of the present invention, in order to save the running cost of the dryer, the dryer further comprises a vacuum generator; and the feed inlet 11, the steam exhaust port 12 and the discharge port 13 can be opened or closed.
Specifically, the vacuum generator is used for reducing the air pressure inside the drying box cylinder 10 so as to reduce the boiling point of the heating medium in the heat transfer plate 21 and accelerate the water evaporation efficiency; when the feed inlet 11, the steam exhaust port 12 and the discharge port 13 are all closed, a vacuum environment in the cylinder 10 of the drying box can be created through the vacuum generator.
The existing indirect heating dryer usually adopts high-temperature steam and heat conduction oil as heating media, when the temperature of the heating media is lower than 100 ℃, the material drying efficiency is very low, and a heat pump system cannot be adopted to carry out heat recovery on the steam.
The dryer in the embodiment can be used for heating the heat exchange medium by using a low-temperature heat source or a heat pump recovery system, the boiling point of the heat exchange medium is reduced to be lower than 100 ℃, the heating cost of the circulating heating medium can be saved, and the running cost of the dryer can be saved.
On the basis that has set up vacuum generator, in order to further practice thrift the running cost, the utility model discloses can utilize heat pump system to retrieve by the steam that evaporates out in the material in the desicator barrel utilizes the latent heat of steam, heats the circulation heating medium. In some embodiments, the circulating medium may be heated by the heat evolved during condensation of the vapor to a liquid.
Specifically, the drying box cylinder 10 can be a cylinder or a cuboid, and the drying box cylinder 10 is designed according to pressure bearing or suitable for vacuum operation conditions.
Specifically, the first heating pipeline 22 is communicated with the second heating pipeline 23, and the dryer further comprises a medium circulating pump and a heat pump system; the heat pump system is used for recovering the steam discharged from the steam outlet 12 and heating the heating medium flowing out of the second heating pipeline 23 by using the heat in the recovered steam; the medium circulation pump is configured to deliver the heating medium heated by the heat pump system in the second heating pipeline 23 to the first heating pipeline 22, and deliver the heating medium into the heat transfer plate 21.
Further, in another embodiment of the horizontal thin-layer dryer with chain scraper of the present invention, in order to solve the problem that the conventional indirect dryer cannot dry the liquid material, so that the application range of the dryer is wider, the heat transfer plate 21 of the present embodiment is a container type heat transfer plate 21.
Wherein, the liquid material is a solid-liquid mixed material and the like.
Specifically, the heat transfer plate 21 is a container-shaped heat transfer plate 21 with an opening at the upper part and side walls at the periphery, and the heat transfer plate 21 is further provided with a discharge port which can be opened or closed; when the discharge port is opened, the material on the heat transfer plate 21 can be conveyed to the heat transfer plate 21 of the next layer or conveyed to the bottom of the cylinder 10 of the drying box by the scraper 32. The heat transfer plate 21 is provided with an upper opening, so that liquid materials are conveniently led into the accommodating cavity of the heat transfer plate 21, and the scraper 32 is convenient for scattering the liquid materials, so that the materials are uniformly arranged on the heat transfer plate 21, and the drying speed can be increased. The dryer of this embodiment is capable of drying a liquid material.
Further, in another embodiment of the horizontal thin-layer dryer with chain scraper of the present invention, the spreading and feeding system further includes chain wheels 33 disposed at two ends of the heat transfer plate 21, and a driving mechanism 34 in driving connection with at least one of the chain wheels 33; a frame body is arranged in the cylinder body, and a wheel shaft of the chain wheel 33 is fixed on the frame body of the drying box; the conveying chain 31 is an annular chain, and two ends of the annular chain are respectively sleeved on the chain wheels 33 at two ends of the heat transfer plate 21; when the annular chain runs in the circumferential direction, the materials on the heat transfer plate 21 on the upper layer and the heat transfer plate 21 on the lower layer are scattered, distributed and conveyed.
Further, in order to avoid the scraper 32 being blocked by the chain wheel 33 when running to the chain wheel 33, the spreading and feeding system comprises one, two or more groups of material pushing and feeding mechanisms; each group of pushing and feeding mechanisms comprises two conveying chains 31 and a plurality of scraping plates 32.
Specifically, each group of pushing and feeding mechanisms comprises two groups of conveying assemblies, each group of conveying assemblies comprises an annular conveying chain 31 and two chain wheels 33 arranged at two ends of the annular conveying chain 31; the two groups of conveying assemblies are arranged at intervals along the axial direction of the chain wheel 33, so that the two conveying chains 31 are arranged at intervals along the axial direction of the chain wheel 33, the scrapers 32 are fixed between the two conveying chains 31, and the scrapers are arranged at intervals along the circumferential direction of the conveying chains 31; the conveying chains 31 in each group of material pushing and feeding mechanisms synchronously operate to drive the scrapers 32 to move, the scrapers 32 can pass through the space between the two chain wheels 33, and when the conveying chains 31 operate circumferentially, the chain wheels 33 cannot block the scrapers 32.
Specifically, in the height direction of the dryer, a part of the endless chain is positioned on top of the heat transfer plate 21 of the upper layer, and another part of the endless chain is positioned between the two layers of heat transfer plates 21.
Furthermore, the dryer is provided with a plurality of layers of heat transfer plates 21 and a plurality of annular conveying chains 31, and each two layers of heat transfer plates 21 are matched with one conveying chain 31, so that a material spreading and feeding system is convenient to arrange, and the material distributing and conveying efficiency can be improved.
In the embodiment, by adopting the annular conveying chain 31, when the conveying chain 31 runs, materials of the upper heat transfer plate 21 and materials of the lower heat transfer plate 21 can be scattered, distributed and conveyed by the scraper 32, so that the working efficiency is improved; meanwhile, in order to fit the plurality of layers of heat transfer plates 21 provided in the dryer, a plurality of conveying chains 31 may be provided. Adopt many annular conveying chain 31 to cooperate the desicator of multilayer conveying board, for adopting snakelike conveying chain 31 of making a round trip to meander to cooperate the desicator of multilayer conveying board, the structure is simpler, and conveying chain 31's operation is more reliable, can reduce the fault rate.
Further, the driving mechanism 34 includes a motor and a speed reducer, and the motor is in transmission connection with the sprocket 33 through the speed reducer; the speed reducer can be used for controlling the rotating speed of the chain wheel 33, so that the running speed of the conveying chain 31 and the material conveying speed are controlled.
Furthermore, the end of the scraper 32 is a saw-tooth-shaped scraper 32, so that the scraper can uniformly break up the materials, and the evaporation efficiency is improved; also suitable for scattering materials such as sludge and the like.
Further, in another embodiment of the horizontal thin-layer dryer with chain scraper of the present invention, the heat transfer plate 21 comprises a top plate 211 and a bottom plate 212, and the top plate 211 and the bottom plate 212 are connected to form the closed inner cavity 2101; a medium inlet 214 and a medium outlet 215 are arranged on the wall of the inner cavity 2101, the medium inlet 214 is communicated with the first heating pipeline 22, and the medium outlet 215 is communicated with the second heating pipeline 23; said heating medium being adapted to flow into said heat transfer plates 21 from said first heating conduit 22 and to flow out of said heat transfer plates 21 from said second heating conduit 23; a turbulent flow structure 213 is arranged in the inner cavity 2101.
In particular, the spoiler structure 213 may be, but is not limited to, a spoiler.
In this embodiment, the heat transfer plate 21 is formed by processing a double-layer metal plate composite interlayer, so that the inner cavity 2101 of the heat transfer plate 21 is suitable for flowing a heating medium to indirectly heat a material. Moreover, by arranging the turbulence structure 213 inside the inner cavity 2101, the fluid channel inside the heat transfer plate 21 can be changed, and the sectional area of the fluid channel can be changed, so that when the heating medium flows, the heating medium is blocked by the turbulence structure 213 to generate turbulence, the temperature of the heating medium is more uniform, the flow rate is more uniform, heat can be more uniformly and efficiently conducted to the top plate 211, and the drying effect of the material is improved.
Further, in order to make the evaporation effect of the moisture in the material better, the arc top plate 211 formed by bulging is adopted in the embodiment.
Specifically, the top plate 211 is a corrugated plate, and the wave troughs of the corrugated plate are connected with the bottom plate 212; the heat transfer plate 21 further comprises side plates, which are respectively connected to the corrugated plates and the bottom plate 212 to close the inner cavity 2101; so set up, through roof 211 and scraper blade 32's cooperation for the material is at the in-process of being transported, under scraper blade 32's promotion, is pushed to the crest of buckled plate for a moment, falls to the trough of buckled plate for a moment, and the material is heated more evenly, and heat exchange efficiency is higher, and drying effect is good.
Further, in another embodiment of the horizontal thin-layer dryer with chain scraper of the present invention, in order to improve the heating efficiency of the heat transfer plate 21 to the material, in order to avoid insufficient heat when the heat transfer plate 21 is long and the heating medium flows to the end, the heating effect of the end heat transfer plate 21 to the material is prevented from being reduced; in this embodiment, a plurality of the inner cavities 2101 are provided inside the heat transfer plate 21.
Specifically, the inner cavities 2101 are isolated from each other, and the inner cavities 2101 are sequentially arranged along the length direction of the heat transfer plate 21; a medium inlet 214 and a medium outlet 215 are arranged on the wall of each inner cavity 2101, the medium inlet 214 is communicated with the first heating pipeline 22, and the medium outlet 215 is communicated with the second heating pipeline 23. Through arranging the plurality of mutually isolated inner cavities 2101 in sequence along the material conveying direction, and realizing the circulation of the heating medium in each independent inner cavity 2101, the material can be guaranteed to be heated and dried efficiently at the head end and the tail end of the heat transfer plate 21, and the material heating efficiency and the drying efficiency are improved.
Further, in another embodiment of the horizontal thin layer dryer with chain scraper of the present invention, the heat transfer plate 21 is a pressure-bearing heat transfer plate 21, and the heat transfer plate 21 is a stainless steel heat transfer plate 21 or a carbon steel heat transfer plate 21.
Further, the cylinder 10 of the drying box is a stainless steel cylinder or a carbon steel cylinder.
Further, the drying box further comprises a support 14, the support 14 is vertically arranged in the drying box cylinder 10, and the heat transfer plate 21, the chain wheel 33, the first heating pipeline 22 and the second heating pipeline 23 are fixed on the support 14.
In the description herein, it is to be understood that the terms "upper", "lower", "left", "right", and the like are used in a descriptive sense and with reference to the illustrated orientation or positional relationship, and are used for convenience in description and simplicity in operation, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used merely for descriptive purposes and are not intended to have any special meaning.
In the description herein, references to the description of "an embodiment," "an example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be appropriately combined to form other embodiments as will be appreciated by those skilled in the art.
The technical principle of the present invention is described above with reference to specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without any inventive effort, which would fall within the scope of the present invention.
Claims (10)
1. The utility model provides a horizontal thin layer dryer of band chain formula scraper blade which characterized in that includes:
the drying box barrel (10) comprises a feeding hole (11), a steam discharging hole (12) and a discharging hole (13);
the material heating system comprises two or more layers of heat transfer plates (21) arranged at intervals along the height direction, and a first heating pipeline (22) and a second heating pipeline (23) which are respectively communicated with inner cavities (2101) of the heat transfer plates (21); the inner cavity (2101) is used for containing a heating medium; the top of the heat transfer plate (21) is used for distributing materials to be dried; each layer of the heat transfer plates (21) is used for carrying out heat conduction type heating on the material on the top of the heat transfer plate, and the heat transfer plate (21) on the upper layer is used for carrying out heat radiation type heating on the material on the heat transfer plate (21) below the heat transfer plate;
the spreading and feeding system comprises a circulating conveying chain (31) and a plurality of scraping plates (32) arranged at intervals along the length direction of the conveying chain (31); a section of the conveying chain (31) is arranged above each layer of the heat transfer plates (21), and the conveying chain (31) is used for driving the scraping plates (32) to move during operation, so that materials on the heat transfer plates (21) are scattered, distributed and conveyed through the scraping plates (32).
2. Horizontal lamellar dryer with chain scraper according to claim 1, characterized in that it also comprises a vacuum generator for reducing the gas pressure inside the drying box cylinder (10).
3. Horizontal thin-layer dryer with chain scraper according to claim 2, characterized in that the first heating line (22) is connected to the second heating line (23), the dryer further comprising a medium circulation pump and a heat pump system; the heat pump system is used for recovering the steam discharged by the steam outlet (12) and heating the heating medium in the second heating pipeline (23) by using the heat in the recovered steam; the medium circulating pump is used for conveying the heated heating medium in the second heating pipeline (23) to the first heating pipeline (22) and conveying the heated heating medium into the heat transfer plates (21).
4. The horizontal thin-layer dryer with chain scraper of claim 1, characterized in that the heat transfer plate (21) is a container-shaped heat transfer plate (21) with an upper opening and a side wall at the periphery, and the heat transfer plate (21) is further provided with a discharge port; when the discharge port is opened, the material on the heat transfer plate (21) can be conveyed to the heat transfer plate (21) of the next layer or the bottom of the drying box cylinder (10) by the scraper (32).
5. The horizontal thin-layer dryer with chain scrapers as claimed in any one of claims 1-4, wherein the material feeding system further comprises chain wheels (33) disposed at both ends of the heat transfer plate (21), and a driving mechanism (34) drivingly connected to at least one of the chain wheels (33); the conveying chain (31) is an annular chain, and two ends of the annular chain are respectively sleeved on the chain wheels (33) at two ends of the heat transfer plate (21); the scrapers (32) respectively protrude from the upper side and the lower side of the conveying chain (31), and when the annular chain runs circumferentially, materials on the heat transfer plate (21) on the upper layer and the heat transfer plate (21) on the lower layer are scattered, distributed and conveyed.
6. The horizontal thin-layer dryer with the chain scraper as claimed in claim 5, wherein the spreading feeding system comprises one, two or more groups of material pushing and feeding mechanisms; each group of the material pushing and feeding mechanisms comprises two conveying chains (31) and a plurality of scraping plates (32), the two conveying chains (31) are arranged at intervals along the axial direction of the chain wheel (33), the scraping plates (32) are fixed between the two conveying chains (31), and the scraping plates are arranged at intervals along the circumferential direction of the conveying chains (31); and the conveying chains (31) in each group of the material pushing and feeding mechanisms synchronously operate.
7. The horizontal scraped-surface dryer according to any one of claims 1 to 4, wherein said heat transfer plate (21) comprises a top plate (211) and a bottom plate (212), said top plate (211) and said bottom plate (212) being joined to form said closed internal cavity (2101); a medium inlet (214) and a medium outlet (215) are formed in the wall of the inner cavity (2101), the medium inlet (214) is communicated with the first heating pipeline (22), and the medium outlet (215) is communicated with the second heating pipeline (23); and a turbulent flow structure (213) is arranged in the inner cavity (2101).
8. Horizontal lamellar dryer with chain scraper according to claim 7, characterized in that the top plate (211) is a corrugated plate, the wave troughs of which are connected to the bottom plate (212); the heat transfer plate (21) further comprises side plates which are respectively connected with the corrugated plate and the bottom plate (212) to seal the inner cavity (2101).
9. The horizontal thin-layer dryer with chain scrapers of any one of claims 1-4, characterized in that a plurality of said inner cavities (2101) are formed inside said heat transfer plate (21), said plurality of said inner cavities (2101) are isolated from each other, and said plurality of said inner cavities (2101) are arranged in sequence along the length direction of said heat transfer plate (21); a medium inlet (214) and a medium outlet (215) are arranged on the wall of each inner cavity (2101), the medium inlet (214) is communicated with the first heating pipeline (22), and the medium outlet (215) is communicated with the second heating pipeline (23).
10. The horizontal thin-layer dryer with chain scrapers of any one of claims 1-4, characterized in that the material to be dried is liquid material, or powdery material, or kitchen waste, or sludge; the heat transfer plate (21) is a pressure-bearing heat transfer plate (21), and the heat transfer plate (21) is a stainless steel heat transfer plate (21) or a carbon steel heat transfer plate (21); the drying box cylinder (10) is a stainless steel cylinder or a carbon steel cylinder; the heating medium is steam, hot water, heat conduction oil or flue gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021936627.5U CN214388913U (en) | 2020-09-07 | 2020-09-07 | Horizontal thin layer dryer with chain type scraper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021936627.5U CN214388913U (en) | 2020-09-07 | 2020-09-07 | Horizontal thin layer dryer with chain type scraper |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114275982A (en) * | 2021-12-07 | 2022-04-05 | 成都易态科技有限公司 | Mud phosphorus recovery processing system, mud phosphorus evaporation system and mud phosphorus recovery processing method |
| CN114314536A (en) * | 2021-12-07 | 2022-04-12 | 成都易态科技有限公司 | Mud phosphorus evaporation plant |
| CN115031500A (en) * | 2022-06-09 | 2022-09-09 | 扬州科润德机械有限公司 | Vacuum baking bin |
| CN115430164A (en) * | 2022-07-28 | 2022-12-06 | 威海韩孚生化药业有限公司 | Drying device and drying method for liquid material |
| CN116717975A (en) * | 2023-08-07 | 2023-09-08 | 福建龙净环保股份有限公司 | Heat pump circulation drying system |
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2020
- 2020-09-07 CN CN202021936627.5U patent/CN214388913U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114275982A (en) * | 2021-12-07 | 2022-04-05 | 成都易态科技有限公司 | Mud phosphorus recovery processing system, mud phosphorus evaporation system and mud phosphorus recovery processing method |
| CN114314536A (en) * | 2021-12-07 | 2022-04-12 | 成都易态科技有限公司 | Mud phosphorus evaporation plant |
| CN114314536B (en) * | 2021-12-07 | 2024-02-02 | 成都易态科技有限公司 | Mud phosphorus evaporation plant |
| CN115031500A (en) * | 2022-06-09 | 2022-09-09 | 扬州科润德机械有限公司 | Vacuum baking bin |
| CN115031500B (en) * | 2022-06-09 | 2024-01-05 | 扬州科润德机械有限公司 | Vacuum baking bin |
| CN115430164A (en) * | 2022-07-28 | 2022-12-06 | 威海韩孚生化药业有限公司 | Drying device and drying method for liquid material |
| CN116717975A (en) * | 2023-08-07 | 2023-09-08 | 福建龙净环保股份有限公司 | Heat pump circulation drying system |
| CN116717975B (en) * | 2023-08-07 | 2023-11-14 | 福建龙净环保股份有限公司 | Heat pump circulation drying system |
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