CN111156810A - Drying heat recovery device for leather production - Google Patents
Drying heat recovery device for leather production Download PDFInfo
- Publication number
- CN111156810A CN111156810A CN202010073852.9A CN202010073852A CN111156810A CN 111156810 A CN111156810 A CN 111156810A CN 202010073852 A CN202010073852 A CN 202010073852A CN 111156810 A CN111156810 A CN 111156810A
- Authority
- CN
- China
- Prior art keywords
- air outlet
- drying
- heat recovery
- stoving
- leather production
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B15/00—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form
- F26B15/10—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions
- F26B15/12—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions the lines being all horizontal or slightly inclined
- F26B15/18—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions the lines being all horizontal or slightly inclined the objects or batches of materials being carried by endless belts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/04—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases
- B05D3/0406—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases the gas being air
- B05D3/0413—Heating with air
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/007—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by mechanical or physical treatments
- D06N3/0077—Embossing; Pressing of the surface; Tumbling and crumbling; Cracking; Cooling; Heating, e.g. mirror finish
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/02—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure
- F26B21/04—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure partly outside the drying enclosure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/005—Treatment of dryer exhaust gases
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
- Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
The invention discloses a drying heat recovery device for leather production, which comprises a conveying mechanism arranged in an oven, wherein the conveying mechanism consists of two groups of symmetrically distributed needle type conveyor belts, a supporting plate is arranged between each group of the needle type conveyor belts with the initial ends arranged outside the oven, and at least one pressing device is fixedly connected onto the supporting plate; the drying oven is at least internally provided with three drying inner cavities, and the top end of the drying oven corresponding to each drying inner cavity is provided with an exhaust pipe. Break through current two chamber structural design, utilize a plurality of chambeies to realize temperature gradient, simultaneously along with the increase of stoving inner chamber quantity, corresponding exhaust pipe exhaust harmful waste gas and steam are handled in several stoving inner chambers in the front, and terminal stoving inner chamber N exhaust pipe exhaust hot-blast can directly be used for tentatively drying in the air-out pipe that conveys to the top stoving inner chamber A through the pipeline.
Description
Technical Field
The invention relates to a heat recovery device, in particular to a drying heat recovery device for leather production.
Background
In the production process of polyurethane PU synthetic leather, which relates to a coating process, composite slurry is coated on base cloth, the base cloth coated with the composite slurry needs to be dried, the traditional composite slurry is oleoresin slurry, oleoresin contains a large amount of toxic and harmful gas, which brings great harm to environment and operators, and the synthetic leather made of oleoresin coating also can have toxic and harmful substances remained and harm to consumers, so the prior art starts to use nontoxic and harmless water-based resin to coat the base cloth, but the water-based resin contains a large amount of water molecules, the traditional oven equipment cannot meet the drying requirement, the drying equipment specially used for drying the water-based resin is appeared on the market at present, but the equipment structure is mostly designed into a front heating cavity and a rear heating cavity, the temperature gradient is generally 60-70 ℃, then directly raising the temperature to 100-140 ℃, and the design has the problems that the finally prepared synthetic leather has uneven surface cells due to quick water loss, and has poor folding resistance and stripping performance; in addition, the base cloth is conveyed forwards by the needle conveyor belt in the coating process, and the situation that the needles are separated from the base cloth in the conveying process is inevitable. Therefore, a drying heat recovery device for leather production is provided.
Disclosure of Invention
The invention mainly aims to provide a drying heat recovery device for leather production, which can effectively solve the problems in the background technology.
In order to achieve the purpose, the invention adopts the technical scheme that:
a drying heat recovery device for leather production comprises a conveying mechanism arranged in an oven, wherein the conveying mechanism consists of two groups of symmetrically distributed needle type conveyor belts, a supporting plate is arranged between each group of the needle type conveyor belts with the initial ends arranged outside the oven, and at least one pressing device is fixedly connected onto the supporting plate;
be equipped with three stoving inner chamber in the oven at least, the oven top that every stoving inner chamber corresponds all is equipped with the exhaust pipe, and the exhaust pipe N that terminal stoving inner chamber N top corresponds passes through the play tuber pipe A intercommunication in pipeline and the top stoving inner chamber A, and the intracavity all is equipped with steam heater in the remaining stoving except top stoving inner chamber A, steam heater respectively with correspond the play tuber pipe B intercommunication that sets up intracavity in each stoving, it all is equipped with the air outlet to go out tuber pipe A and play tuber pipe B.
Furthermore, the needle type conveyor belt comprises a chain, a plurality of supporting plates are distributed on the chain, the upper edge plates of the supporting plates are locked in threaded holes in two pin shafts of the same section of the chain through two bolt threads, and a plurality of vertical pricking pins are welded on the lower edge plates of the supporting plates.
Further, closing device is including fixing the support frame in the backup pad, the support frame upper end is equipped with the cylinder, cylinder piston rod end fixed connection fixed block, fixed block and connecting rod threaded connection, connecting rod end fixed connection pressure disk, the top of felting needle is arranged in to the pressure disk.
Further, a circle of extrusion piece consisting of thin metal wires is fixed on the edge of the pressing disc.
Furthermore, the air outlet pipe A and the air outlet pipe B both comprise an upper air outlet pipe and a lower air outlet pipe, and air outlets of the upper air outlet pipe and the lower air outlet pipe are distributed relatively.
Furthermore, the cross section of the air outlet is in an isosceles trapezoid shape, the end part of the air outlet is sealed, and a plurality of air outlet holes are formed in two side faces of the air outlet.
Furthermore, the end part of the air outlet is fixedly connected with a guide plate, and two sides of the guide plate are inclined.
Further, except on the exhaust pipe N that terminal stoving inner chamber N corresponds, the exhaust pipe that all the other stoving inner chambers correspond all communicates with the intake stack of the air exhauster that corresponds, and the air-out pipeline of each air exhauster all communicates with the tail gas treatment room.
Further, the tail gas treatment chamber is made of activated carbon.
Compared with the prior art, the invention has the following beneficial effects:
firstly, the existing two-cavity structural design is broken through, the temperature gradient is realized by utilizing a plurality of cavities, meanwhile, with the increase of the number of the drying inner cavities, harmful waste gas exhausted by the corresponding exhaust pipes is treated in the first drying inner cavities, and hot gas exhausted by the exhaust pipes N of the tail-end drying inner cavities can be directly conveyed to the air outlet pipe in the drying inner cavity A at the initial end through a pipeline for primary drying, so that heat is recycled, and energy is saved;
secondly, the arrangement of the pressing device enables the base cloth and the felting needles on the needle type conveyor belt to be pressed and attached at the initial end of the needle type conveyor belt, so that the felting needles penetrate through the base cloth, and the stability of the base cloth in the conveying process is ensured; in addition, the air cylinder matched with the pressing device and the thread matching of the connecting rod and the fixed block realize the longitudinal and transverse adjustment of the pressing device, the effect of penetrating through the felting needle is ensured, in addition, the pressing part is adopted for pressing, the thin iron wire has certain rigidity and flexibility, and under the condition of not influencing the transmission of the base cloth, the auxiliary base cloth penetrates through the felting needle;
opening holes on the side surface of an air outlet hole on the air outlet, instead of directly blowing the holes at the bottom against the base cloth, so that the base cloth is protected, and the defects of cracks, pits and the like on the surface of the leather caused by direct blowing are avoided; the arrangement of the guide plate is used for fully mixing heat flow with the hot air from the adjacent guide plate along the guide direction of the guide plate, so that the temperature, the wind power and the like of the drying inner cavity of the section are relatively uniform, and the drying and forming effects of the synthetic leather are stable and consistent;
and fourthly, exhaust pipelines led out from the other drying inner cavities except the tail end drying inner cavity N pass through a tail gas treatment chamber, harmful pollutants are adsorbed and then discharged, and the environment is protected.
Drawings
FIG. 1 is a schematic view of the overall structure of a drying heat recovery device for leather production according to the present invention;
FIG. 2 and FIG. 3 are side views of the pressing device of the drying heat recycling device for leather production according to the present invention;
FIG. 4 is a schematic diagram of a conveying structure of the drying heat recovery device for leather production (with a base cloth) according to the present invention;
FIG. 5 is a schematic enlarged view of a part of a conveying structure of the drying heat recovery device for leather production according to the present invention;
FIG. 6 is a schematic view of the connection structure of the needle type conveyor belt felting needles and the chain of the drying device for leather production of the present invention;
FIG. 7 is a schematic view of the matching structure of a blank holder device and a needle of the drying device for leather production according to the present invention;
fig. 8 is a schematic structural view of an air outlet pipe a or an air outlet pipe B of the drying device for leather production.
In the figure: 1. an oven; 2. A conveying mechanism; 3. A needle conveyor belt; 4. a support plate; 5. a pressing device; 501. a support frame; 502. a cylinder; 503. a fixed block; 504. a connecting rod; 505. a platen; 506. an extrusion; 7. Drying the inner cavity A at the initial end; 8. an air outlet pipe A; 9. a steam heater; 10. an air outlet pipe B; 11. an air outlet; 12. a tail end drying inner cavity N; 13. an exhaust duct N; 14. a needle; 15. an air outlet; 16. a baffle; 17. a tail gas treatment chamber; 31. a chain; 32. and (7) a supporting plate.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1-8, a drying heat recovery device for leather production comprises a conveying mechanism 2 arranged inside an oven 1, wherein the conveying mechanism 2 is composed of two groups of symmetrically distributed needle conveyor belts 3 (the power transmission directions of the two groups of needle conveyor belts refer to fig. 4, and fig. 4 is also the base cloth conveying direction), the needle conveyor belts 3 are arranged on a working frame, each needle conveyor belt 3 comprises a chain 31, supporting plates 32 are equidistantly distributed on the chain 31, the upper edge plates of the supporting plates 32 are locked in threaded holes on two pin shafts of the same section of the chain 31 through two bolt threads, a plurality of vertical pricking pins 14 are welded on the lower edge plates of the supporting plates 32, the transmission mode of the chain 31 is the prior art, and the motor is used for driving the gear to rotate, and the gear drives the chain;
a supporting plate 4 is arranged between chains 31 of each group of needle type conveyor belts 3 with the starting ends arranged outside the oven 1, the supporting plate 4 is designed as long as the transmission of the needle type conveyor belts 3 is not affected, the embodiment can be fixed on a working frame, two pressing devices 5 are fixedly connected to the supporting plate 4, the two pressing devices 5 are arranged in a straight line, each pressing device 5 comprises a supporting frame 501 fixed to the supporting plate 4, an air cylinder 502 is arranged at the upper end of each supporting frame 501, a fixing block 503 is fixedly connected to the end of a piston rod of the air cylinder 502, the fixing block 503 is in threaded connection with a connecting rod 504, a pressure plate 505 is fixedly connected to the end of the connecting rod 504, an extruding part 506 is arranged at the edge of the pressure plate 505, a circle of extruding part 506 made of thin metal wires;
four drying inner cavities are arranged in the oven 1, specifically, an initial drying inner cavity A7, a drying inner cavity B, a drying inner cavity C and a terminal drying inner cavity N12, the four drying inner cavities are separated by a partition plate made of a heat insulating material, the partition plate is arranged on the basis of not influencing the transmission of a needle type conveyor belt 3, the temperature transmission between the drying inner cavities is avoided to a certain extent, the top end of the oven 1 corresponding to the initial drying inner cavity A7 is provided with an exhaust duct A, the top end of the oven 1 corresponding to the drying inner cavity B is provided with an exhaust duct B, the top end of the oven 1 corresponding to the drying inner cavity C is provided with an exhaust duct C, the top end of the oven 1 corresponding to the terminal drying inner cavity N12 is provided with an exhaust duct N13, the exhaust duct N13 corresponding to the top end of the terminal drying inner cavity N6325 is communicated with an air outlet duct A8 in the initial drying inner cavity A7 through a pipeline, except for the initial drying inner cavity A7, the drying inner cavity B and the terminal drying inner cavity N6338 are provided with steam heaters 9, the exhaust ducts corresponding to exhaust ducts A10, the exhaust ducts corresponding to exhaust ducts, the exhaust ducts A5811, the exhaust duct A and the exhaust ducts corresponding to exhaust ducts of the exhaust duct B16, the exhaust duct B are respectively, the exhaust duct A18, the exhaust duct A are respectively, the exhaust duct A, the exhaust duct A is connected with the exhaust duct A, the exhaust duct A, the exhaust duct A exhaust duct.
It should be noted that, the invention is a drying heat recovery device for leather production, during operation, a base cloth to be dried is placed on a needle conveyor belt 3 by manual pulling at the beginning, the edge of the base cloth is pressed and passes through a needle 14, then an oven 1 is started to start operation, slurry is coated at one side, the base cloth coated with the slurry passes through a pressing device 5 in the process of transmission and drying, the pressing device 5 adjusts the longitudinal distance between a platen 505 and the base cloth through a cylinder 502 (the model of the cylinder 502 is AirTACXQGB50 x 50-FA, the connection mode of the cylinder 502 is not improved, the prior art is adopted) according to the distance between the base cloth and the pressing device 5, and adjusts the transverse distance between the platen 505 and the base cloth through the screw thread rotation of a connecting rod 504 and a fixed block 503, so as to ensure that an extruding part 506 can just press the base cloth and enable the needle 14 to pass through the base cloth; after adjustment, when the base cloth passes through, the extrusion pieces 506 distributed on the pressure plate 505 play a role of applying pressure, so that the felting needles 14 pierce the base cloth, and are conveyed to the initial-end drying inner cavity A7 along with the needle conveyor belt 3, the drying temperature of the initial-end drying inner cavity A7 is 40-60 ℃, and then the felting needles are sequentially conveyed to the drying inner cavity B, the drying inner cavity C and the tail-end drying inner cavity N12, the temperatures of the three cavities are respectively 60-80 ℃, 80-120 ℃ and 120-140 ℃, the base cloth is dried by hot air flows of the four drying inner cavities, is led out of the oven 1 along with the needle conveyor belt 3, and a guide roller higher than a working frame is arranged between the base cloth and a winding frame after the base cloth is led out, so that the base cloth is separated from the felt;
in the process, an exhaust pipe N13 of the tail-end drying cavity N12 is communicated with an exhaust pipe A8 in the initial-end drying cavity A7 through a pipeline 6 to provide a heat source for the initial-end drying cavity A8, the temperature is controlled to be 40-60 ℃, heat recycling is realized, the exhaust pipe A corresponding to the initial-end drying cavity A8, the exhaust pipe B corresponding to the drying cavity B and the exhaust pipe C corresponding to the drying cavity C are communicated with air inlet pipelines of the exhaust fan A, the exhaust fan B and the exhaust fan C respectively corresponding to the exhaust fan A, the exhaust fan B and the exhaust fan C, the air outlet pipelines of the exhaust fan A, the exhaust fan B and the exhaust fan C corresponding to the exhaust fan C are communicated with a tail gas treatment chamber 17, air flow is sucked out and then treated and then;
the air outlet structural design makes the interior hot-blast exhaust of tuber pipe A8 and tuber pipe B10 through the apopore 15 of side then guide plate 16 play and changes hot-blast direction of transfer and make the temperature, the wind-force of corresponding stoving inner chamber relatively homogeneous, avoids hot-blast direct blowing to arouse on the base cloth that the leather surface produces defects such as crackle, pit, plays the guard action to the base cloth simultaneously.
The above relates to the temperature control mode: the temperature in the drying inner cavity is determined by adjusting the air inflow, the temperature is generally controlled by an electromagnetic valve, the specific temperature is fed back by a temperature sensor, and the temperature is not adjusted in the later period after being adjusted once in production unless the technical parameter requirements of products to be dried are met; in addition, the above adjusting mode is the prior art.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. The utility model provides a leather production is with stoving heat recovery unit which characterized in that: the device comprises a conveying mechanism (2) arranged in an oven (1), wherein the conveying mechanism (2) consists of two groups of symmetrically distributed needle type conveyor belts (3), a supporting plate (4) is arranged between each group of the needle type conveyor belts (3) with the initial ends arranged at the outer side of the oven (1), and at least one pressing device (5) is fixedly connected onto the supporting plate (4);
be equipped with three stoving inner chamber in oven (1) at least, oven (1) top that every stoving inner chamber corresponds all is equipped with the exhaust pipe, and exhaust pipe N (13) that end stoving inner chamber N (12) top corresponds all is equipped with steam heater (9) through air-out pipe A (8) intercommunication in pipeline (6) and the top stoving inner chamber A (7), the intracavity all is equipped with in remaining stoving except top stoving inner chamber A (7), steam heater (9) respectively with correspond air-out pipe B (10) the intercommunication that sets up intracavity in each stoving, air-out pipe A (8) and air-out pipe B (10) all are equipped with air outlet (11).
2. The drying heat recovery device for leather production according to claim 1, characterized in that: the needle type conveyor belt (3) comprises a chain (31), a plurality of supporting plates (32) are distributed on the chain (31), the upper edge plates of the supporting plates (32) are locked in threaded holes in two pin shafts of the same section of the chain (31) through two bolt threads, and a plurality of vertical puncture needles (14) are welded on the lower edge plates of the supporting plates (32).
3. The drying heat recovery device for leather production according to claim 2, characterized in that: closing device (5) is including fixing support frame (501) on backup pad (4), support frame (501) upper end is equipped with cylinder (502), cylinder (502) piston rod end fixed connection fixed block (503), fixed block (503) and connecting rod (504) threaded connection, connecting rod (504) end fixed connection pressure disk (505), the top of felting needle (14) is arranged in pressure disk (505).
4. The drying heat recovery device for leather production according to claim 3, characterized in that: a circle of extrusion piece (506) composed of thin metal wires is fixed on the edge of the pressing disc (505).
5. The drying heat recovery device for leather production according to claim 1, characterized in that: the air outlet pipe A (8) and the air outlet pipe B (10) comprise an upper air outlet pipe and a lower air outlet pipe, and air outlets (11) of the upper air outlet pipe and the lower air outlet pipe are distributed relatively.
6. The drying heat recovery device for leather production according to claim 5, characterized in that: the cross section of the air outlet (11) is in an isosceles trapezoid shape, the end part of the air outlet is sealed, and a plurality of air outlet holes (15) are formed in two side faces of the air outlet (11).
7. The drying heat recovery device for leather production according to claim 6, characterized in that: the air outlet (11) tip fixedly connected with guide plate (16), guide plate (16) both sides are the slope form.
8. The drying heat recovery device for leather production according to claim 1, characterized in that: except on exhaust pipe N (13) that terminal stoving inner chamber N (12) correspond, all the exhaust pipes that all the other stoving inner chambers correspond all communicate with the intake stack of the air exhauster that corresponds, the air-out pipeline of each air exhauster all communicates with tail gas treatment room (17).
9. The drying heat recovery device for leather production according to claim 8, characterized in that: the tail gas treatment chamber (17) is made of activated carbon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010073852.9A CN111156810A (en) | 2020-01-22 | 2020-01-22 | Drying heat recovery device for leather production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010073852.9A CN111156810A (en) | 2020-01-22 | 2020-01-22 | Drying heat recovery device for leather production |
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| Publication Number | Publication Date |
|---|---|
| CN111156810A true CN111156810A (en) | 2020-05-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010073852.9A Pending CN111156810A (en) | 2020-01-22 | 2020-01-22 | Drying heat recovery device for leather production |
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| CN (1) | CN111156810A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021243571A1 (en) * | 2020-06-02 | 2021-12-09 | 李桂军 | Drying heat recovery apparatus for leather production |
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2020
- 2020-01-22 CN CN202010073852.9A patent/CN111156810A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021243571A1 (en) * | 2020-06-02 | 2021-12-09 | 李桂军 | Drying heat recovery apparatus for leather production |
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Application publication date: 20200515 |