CN112939410B - Multifunctional dryer and application thereof - Google Patents
Multifunctional dryer and application thereof Download PDFInfo
- Publication number
- CN112939410B CN112939410B CN202110137685.4A CN202110137685A CN112939410B CN 112939410 B CN112939410 B CN 112939410B CN 202110137685 A CN202110137685 A CN 202110137685A CN 112939410 B CN112939410 B CN 112939410B
- Authority
- CN
- China
- Prior art keywords
- shell
- parts
- hollow
- hollow shaft
- discs
- Prior art date
- 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.)
- Active
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/13—Treatment of sludge; Devices therefor by de-watering, drying or thickening by heating
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J4/00—Adhesives based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; adhesives, based on monomers of macromolecular compounds of groups C09J183/00 - C09J183/16
Abstract
The invention provides a multifunctional dryer which comprises a shell with a front end cover and a rear end cover, wherein a feed inlet is arranged at the upper part of the shell, a discharge outlet is arranged at the lower part of the shell, and an anti-sticking layer is arranged on the inner wall of the shell; the rotary table mechanism penetrates through two ends of the shell and is accommodated in the shell, the rotary table mechanism comprises a hollow shaft and a plurality of hollow discs which are equidistantly arranged in the axial direction of the hollow shaft, the hollow discs are communicated with the hollow shaft through pipelines, one end of the hollow shaft is rotationally communicated with a rotary joint, the upper part of the rotary joint is provided with a heat medium inlet, the lower part of the rotary joint is provided with a cold medium outlet, and anti-sticking layers are arranged on the outer walls of the hollow discs and the hollow shaft; the driving device comprises a driving mechanism and a transmission mechanism connected with the driving mechanism. The multifunctional dryer in the technical scheme can dry the sludge with the water content of 80% into the sludge with the water content of about 15%, and has the characteristics of good drying effect, high drying efficiency and low drying cost.
Description
Technical Field
The invention belongs to the technical field of drying machinery, and particularly relates to a multifunctional dryer and application thereof.
Background
The drier is a mechanical device for drying materials by using heat energy, and mainly uses heating to evaporate and escape moisture or other volatile liquid in the materials, so as to meet the specified moisture content requirement. The mechanism of the dryer can be classified into a box dryer, a conveyor type dryer, a disc type dryer, a vertical type dryer, a fluidized bed dryer, etc., and the disc type dryer is the most widely used in the field of sludge drying.
The drying heat sources of the existing disc type dryer are generally distributed in the interlayer of the shell and the hollow disc, the sludge in the dryer is dried through the heat sources in the interlayer of the shell, and the sludge attached to the hollow disc is dried through the heat sources in the hollow disc. Patent application number CN201420010569.1 discloses a disc type sludge dryer, the shell is in a sandwich cylinder shape, the sandwich heat transfer efficiency of the cylinder-shaped shell is low, and the cost of sludge drying is increased. The rotary disc of the disc type sludge dryer is accommodated in the shell, and comprises a hollow shaft and a disc formed by welding discs, and sludge is stirred through continuous rotation of the rotary disc so as to heat different sludge. However, the water-containing sludge has a large viscosity and can adhere to the interlayer between the disc and the shell, and the sludge drying surface is replaced less along with the rotation of the disc, so that the uniformity of sludge drying is reduced, and the drying efficiency is reduced.
Disclosure of Invention
In order to solve the technical problems, a first aspect of the invention provides a multifunctional dryer, which comprises a shell with a front end cover and a rear end cover, wherein a feed inlet is arranged at the upper part of the shell, a discharge outlet is arranged at the lower part of the shell, and an anti-sticking layer is arranged on the inner wall of the shell; the rotary table mechanism penetrates through two ends of the shell and is accommodated in the shell, the rotary table mechanism comprises a hollow shaft and a plurality of hollow discs which are equidistantly arranged in the axial direction of the hollow shaft, the hollow discs are communicated with the hollow shaft through pipelines, one end of the hollow shaft is rotationally communicated with a rotary joint, the upper part of the rotary joint is provided with a heat medium inlet, the lower part of the rotary joint is provided with a cold medium outlet, and anti-sticking layers are arranged on the outer walls of the hollow discs and the hollow shaft; the driving device comprises a driving mechanism and a transmission mechanism connected with the driving mechanism, and the transmission mechanism is rotationally connected with one end of the hollow shaft far away from the rotary joint.
Preferably, a honeycomb plate is arranged at the middle lower part of the outer wall of the shell, the honeycomb plate and the shell are surrounded to form a hollow heating jacket, and a hot medium inlet and a cold medium outlet are arranged on the honeycomb plate.
Preferably, the upper part of the heating jacket on the shell is provided with a scraper device, the scraper device comprises a connecting plate connected with the shell and a plurality of scrapers equidistantly arranged on the connecting plate, and each scraper is positioned between two hollow discs.
Preferably, two ends of the hollow shaft are respectively connected with the front end cover and the rear end cover in a rotating way through bearings and flanges.
Preferably, each hollow disc is formed by welding two discs, and a plurality of pushing sheets are connected to the spaced hollow discs at welding positions along the radial direction.
Preferably, reinforcing ribs are fixedly connected between different propelling pieces on the hollow disc.
Preferably, the transmission mechanism is selected from one of a belt transmission mechanism, a chain transmission mechanism and a gear transmission mechanism.
Preferably, the transmission mechanism is a chain transmission mechanism, and the chain transmission mechanism comprises a driving wheel connected with the driving mechanism, a chain with one end connected with the driving wheel, a driven wheel connected with the other end of the chain, and a bearing connected between the driven wheel and the hollow shaft.
Preferably, an access window is formed in the top of the shell.
The multifunctional dryer disclosed by the invention is applied to drying of liquid-containing raw materials.
Preferably, a tail gas outlet and an air inlet are formed in the top of the shell, and a fan device is connected to the tail gas outlet.
The beneficial effects are that: the inventor sets up honeycomb panel and casing and surrounds into hollow heating jacket, dashes into heating medium in the heating jacket, heats the raw materials in the casing, introduces another heat source that has heating medium except cavity axle and hollow disc, has improved the efficiency of drying. The honeycomb plate can enable the heating medium to be in a turbulent flow state in the heating jacket, so that the mass transfer efficiency is further improved, heat in the heating medium can be better and more transferred to the drying raw material, the drying efficiency is improved, and the drying time is shortened. Through setting up scraper device, prevent the caking phenomenon of dry raw materials, improve the homogeneity of dry raw materials, further improve the quality of drying. Through set up the anti-sticking layer on the inner wall of casing, reduce the adhesive force between mud and the shells inner wall, make inside mud can dry evenly, improve drying efficiency, save drying time, reduce drying cost. Through set up a plurality of hollow discs in the inside of casing, further for the mud that needs the drying provides the heat source, improve drying efficiency, through set up the anti-sticking layer on hollow disc, improve the change rate of dry face, make inside mud can dry evenly, improve drying efficiency, save drying time, reduce drying cost. The multifunctional dryer in the technical scheme can dry the sludge with the water content of 80% into the sludge with the water content of about 15%, and has the characteristics of good drying effect, high drying efficiency and low drying cost.
Drawings
Fig. 1 is a schematic overall front view of the dryer in example 1.
Fig. 2 is a schematic diagram showing the overall top view structure of the dryer in example 1.
FIG. 3 is a schematic view of the cross-sectional structure of the F-F plane in FIG. 2.
Fig. 4 is an enlarged view of the structure of the portion a in fig. 3.
FIG. 5 is a schematic view of the cross-sectional structure of the E-E plane in FIG. 1.
1-shell, 2-feed inlet, 3-discharge outlet, 4-hollow axle, 5-front end housing, 6-rear end housing, 7-hollow disc, 8-rotary joint, 9-heat medium inlet, 10-cold medium outlet, 11-propulsion blade, 12-driven wheel, 13-supporting seat, 14-honeycomb panel, 15-dome, 16-tail gas outlet, 17-air inlet, 18-access window, 19-hollow disc, 20-scraper, 21-heating jacket, 22-connecting plate.
Detailed Description
For the purposes of the following detailed description, it is to be understood that the invention may assume various alternative variations and step sequences, except where expressly specified to the contrary. Furthermore, except in any operating examples, or where otherwise indicated, all numbers expressing, for example, quantities of ingredients used in the specification and claims are to be understood as being modified in all instances by the term "about". Accordingly, unless indicated to the contrary, the numerical parameters set forth in the following specification and attached claims are approximations that may vary depending upon the desired properties to be obtained by the present invention. At the very least, and not as an attempt to limit the application of the doctrine of equivalents to the scope of the claims, each numerical parameter should at least be construed in light of the number of reported significant digits and by applying ordinary rounding techniques.
Notwithstanding that the numerical ranges and parameters setting forth the broad scope of the invention are approximations, the numerical values set forth in the specific examples are reported as precisely as possible. Any numerical value, however, inherently contains certain errors necessarily resulting from the standard deviation found in their respective testing measurements.
When a range of values is disclosed herein, the range is considered to be continuous and includes both the minimum and maximum values for the range, as well as each value between such minimum and maximum values. Further, when a range refers to an integer, each integer between the minimum and maximum values of the range is included. Further, when multiple range description features or characteristics are provided, the ranges may be combined. In other words, unless otherwise indicated, all ranges disclosed herein are to be understood to include any and all subranges subsumed therein. For example, a specified range from "1 to 10" should be considered to include any and all subranges between the minimum value of 1 and the maximum value of 10. Exemplary subranges from 1 to 10 include, but are not limited to, 1 to 6.1, 3.5 to 7.8, 5.5 to 10, and the like.
In order to solve the technical problems, a first aspect of the invention provides a multifunctional dryer, which comprises a shell with a front end cover and a rear end cover, wherein a feed inlet is arranged at the upper part of the shell, a discharge outlet is arranged at the lower part of the shell, and an anti-sticking layer is arranged on the inner wall of the shell; the rotary table mechanism penetrates through two ends of the shell and is accommodated in the shell, the rotary table mechanism comprises a hollow shaft and a plurality of hollow discs which are equidistantly arranged in the axial direction of the hollow shaft, the hollow discs are communicated with the hollow shaft through pipelines, one end of the hollow shaft is rotationally communicated with a rotary joint, the upper part of the rotary joint is provided with a heat medium inlet, the lower part of the rotary joint is provided with a cold medium outlet, and anti-sticking layers are arranged on the outer walls of the hollow discs and the hollow shaft; the driving device comprises a driving mechanism and a transmission mechanism connected with the driving mechanism, and the transmission mechanism is rotationally connected with one end of the hollow shaft far away from the rotary joint.
As a preferred technical solution, the anti-sticking layer is divided into an adhesive layer and a polytetrafluoroethylene layer which are adhered from bottom to top.
As a preferable technical scheme, the bonding layer comprises, by weight, 10-30 parts of methyl methacrylate, 10-30 parts of butyl acrylate, 5-10 parts of 2- (perfluorooctyl) ethyl methacrylate, 5-10 parts of vinyl trimethoxy silane, 0.5-2 parts of sodium dodecyl sulfate, 0.5-2 parts of p-octylphenol polyoxyethylene ether, 1-2 parts of sodium persulfate, 1-2 parts of inorganic filler and 50-150 parts of water.
As a preferable technical scheme, the polytetrafluoroethylene layer is mainly prepared from polytetrafluoroethylene.
Since the initial raw materials dried by the dryer all contain much moisture, the drying efficiency is low when the raw materials, such as sludge, which are easily sticky when they contain much moisture, are dried. Because the dried viscous material can be adhered to the inner wall of the shell, the surface of the hollow disc and the surface of the hollow shaft, the replacement of the drying surface is prevented, the raw material containing more water cannot be attached to the inner wall of the shell, the surface of the hollow disc or the surface of the hollow shaft in time to absorb the heat required for drying, and the drying efficiency and uniformity of the raw material are reduced. The inventor finds that the adhesion force of the water-containing sludge to the inner wall of the shell, the hollow disc and the outer wall of the hollow shaft can be reduced by coating an anti-sticking layer on the surfaces of the inner wall of the shell, the hollow disc and the outer wall of the hollow shaft, the drying surface of the hollow shaft can be replaced in time when the hollow shaft rotates, the drying efficiency is improved, the drying time is saved, and the drying cost is reduced. Polytetrafluoroethylene has high lubricity, anti-sticking property and high temperature resistance, but because the polytetrafluoroethylene has low surface energy and cannot be directly adhered to a smooth metal surface, the inventor sets a bonding layer with bonding effect between polytetrafluoroethylene and metal. The inventor selects an acrylic ester adhesive with better adhesive property and lower cost as a main raw material of the adhesive layer, and the inventor further improves the compatibility, wettability and cohesiveness of the adhesive layer and polytetrafluoroethylene by adding 2- (perfluorooctyl) ethyl methacrylate and vinyl trimethoxy silane into the acrylic ester adhesive, but the inventor finds that the consistency of the acrylic ester adhesive is smaller, and the acrylic ester adhesive is easy to precipitate when placed, so that the adhesive effect is affected when the adhesive is used.
As a preferable technical scheme, the raw materials for preparing the bonding layer further comprise a thickener, and the weight ratio of the thickener to the methyl methacrylate is (15-20): 1.
as a preferable technical scheme, the thickener is hydroxypropyl methyl cellulose, and the viscosity of the hydroxypropyl methyl cellulose is 10-15 ten thousand mPa.s.
The inventor has unexpectedly found that when a certain amount of hydroxypropyl methylcellulose with certain viscosity is selected as a thickening agent, not only the consistency and viscosity of the bonding layer can be improved, the stability of the whole adhesive is further improved, the occurrence of precipitation phenomenon is prevented, but also the wettability of the acrylic adhesive to polytetrafluoroethylene can be further improved, and the bonding performance between the acrylic adhesive and polytetrafluoroethylene is improved. However, when the viscosity of hydroxypropyl methylcellulose is large or small, the performance is not ideal. The inventor considers that possible reasons are that the hydroxypropyl methyl cellulose with certain viscosity can properly improve the viscosity of the acrylic adhesive, so that molecules in the acrylic adhesive can be well diffused to the metal surface and the polytetrafluoroethylene coating, and meanwhile, the proper molecular distance between the acrylic adhesive and the molecules between two interfaces is kept, so that the molecular acting force between different interfaces is improved, and the acrylic adhesive can exert better adhesive property. But the hydroxypropyl methyl cellulose with larger viscosity can greatly improve the viscosity of the acrylic adhesive, increase the resistance of molecules in the acrylic adhesive to diffuse to two interfaces, destroy the most proper distance between the molecules in the acrylic adhesive and molecules on the metal surface, and reduce the acting force among the molecules, thereby influencing the bonding performance. The hydroxypropyl methyl cellulose with smaller viscosity can not effectively improve the viscosity of the acrylic ester adhesive, and still has the phenomenon of precipitation during placement, thereby influencing the adhesive property. Although the stability and the adhesive property of the acrylic adhesive can be improved by adding hydroxypropyl methyl cellulose with certain viscosity, the heat transfer between the heat medium and the dried raw material can be affected by coating a layer of adhesive, and the heat transfer efficiency is reduced.
As a preferable technical scheme, the inorganic filler is nano silicon carbide, and the particle size of the nano silicon carbide is 50-80nm.
As a preferred technical scheme, the particle size of the nano silicon carbide is 50nm.
The inventors have unexpectedly found that by adding nano silicon carbide with a certain particle size, the influence of the bonding layer on heat transfer can be reduced, the heat transfer efficiency between a heat medium and the dried raw material can be improved, and the wear resistance of the bottom layer of the anti-sticking layer can also be improved. However, the nano silicon carbide with larger particle size has larger influence on the flatness of the polytetrafluoroethylene layer, so that impurities in the raw materials are easier to scratch the polytetrafluoroethylene layer, and the nano silicon carbide with smaller particle size can be aggregated to influence the bonding performance of the bonding layer.
As a preferable technical scheme, the preparation method of the bonding layer mainly comprises the following steps:
(1) Methyl methacrylate, butyl acrylate, 2- (perfluorooctyl) ethyl methacrylate, vinyltrimethoxysilane, sodium dodecyl sulfate, p-octylphenol polyoxyethylene ether and water are mixed and stirred to obtain a mixture A;
(2) Mixing one third of the mixture A with the same amount of water at 80-85 ℃, adding one third of sodium persulfate, reacting for 10-20min, and dripping the rest mixture A and sodium persulfate to obtain a mixture B;
(3) After the mixture was cooled to room temperature, the pH was adjusted to 7 using aqueous ammonia to give mixture C;
(4) Adding inorganic filler into the mixture C, stirring, adding thickener, and stirring.
As a preferred embodiment, the adhesive layer is formed by coating.
As a preferred technical solution, the polytetrafluoroethylene layer is formed by spraying.
As a preferable technical scheme, a honeycomb plate is arranged at the middle lower part of the outer wall of the shell, the honeycomb plate and the shell are surrounded to form a hollow heating jacket, and a hot medium inlet and a cold medium outlet are arranged on the honeycomb plate.
The inventor sets up honeycomb panel and casing and surrounds into hollow heating jacket, dashes into heating medium in the heating jacket, heats the raw materials in the casing, introduces another heat source that has heating medium except cavity axle and hollow disc, has improved the efficiency of drying. The honeycomb plate can enable the heating medium to be in a turbulent flow state in the heating jacket, so that the mass transfer efficiency is further improved, heat in the heating medium can be better and more transferred to the drying raw material, the drying efficiency is improved, and the drying time is shortened.
As a preferable technical scheme, the upper part of the heating jacket on the shell is provided with a scraper device, the scraper device comprises a connecting plate connected with the shell and a plurality of scrapers equidistantly arranged on the connecting plate, and each scraper is positioned between two hollow discs.
The inventor sets up scraper device, makes and is equipped with a scraper between two discs, and after bonding a large amount of dry raw materials piece between two hollow discs, separate caking dry raw materials through the effect of scraper, the homogeneity of drying between the raw materials makes the dry face constantly replace, improves drying efficiency.
As a preferable technical scheme, two ends of the hollow shaft are respectively connected with the front end cover and the rear end cover in a rotating way through bearings and flanges.
As a preferable technical scheme, each hollow disc is formed by welding two discs, and a plurality of pushing sheets are connected with each other at the welding position along the radial direction of the spaced hollow discs.
The inventor through setting up the propulsion piece, strengthen the stirring effect to the dry raw materials, make the dry raw materials be difficult for agglomerating, reduce the rotation resistance of carousel mechanism, improve the life of desiccator to be difficult for breaking the anti-sticking layer, improve drying efficiency.
As a preferable technical scheme, reinforcing ribs are fixedly connected between different propelling pieces on the hollow disc.
The hollow disc is formed by welding two discs, and when the hollow disc rotates, the hollow disc has stirring effect on dry raw materials, and simultaneously can bear larger pressure and resistance, and the welding part of the hollow disc is easy to crack, so that heating medium in the hollow disc leaks outwards, and the drying process is influenced. The inventor has not only improved the ability of hollow disc bearing pressure through the fixed joint strengthening rib in the welded part of hollow disc to the phenomenon that the welding department fracture of hollow disc leads to the heating medium to leak outward has been reduced.
As a preferred embodiment, the transmission mechanism is selected from one of a belt transmission mechanism, a chain transmission mechanism and a gear transmission mechanism.
As a preferable technical scheme, the transmission mechanism is a chain transmission mechanism, and the chain transmission mechanism comprises a driving wheel connected with the driving mechanism, a chain with one end connected with the driving wheel, a driven wheel connected with the other end of the chain, and a bearing connected between the driven wheel and the hollow shaft.
As a preferable technical scheme, the top of the shell is provided with an access window.
The inventor improves the convenience when maintaining through seting up the access window at the top of casing.
The multifunctional dryer disclosed by the invention is applied to drying of liquid-containing raw materials.
As a preferable technical scheme, a tail gas outlet and an air inlet are formed in the top of the shell, and a fan device is connected to the tail gas outlet.
The inventor is through connecting fan device in tail gas exit, in time with the tail gas exhaust device that produces in the drying process to fill certain air, maintain the inside stable pressure of desiccator.
In addition, the raw materials used are commercially available unless otherwise indicated.
Example 1
The utility model provides a multifunctional dryer, as shown in fig. 1-5, including casing 1, carousel mechanism and the drive arrangement that have front end housing and rear end housing, the below of casing is provided with supporting seat 13, the upper portion of casing 1 is equipped with the feed inlet 2 of dry raw materials, and the lower part is equipped with the discharge gate 3 of the raw materials that the drying is accomplished, the inner wall of casing 1 is provided with the anti-sticking layer, prevents to wait that the raw materials of drying from bonding reduces drying efficiency. The rotary table mechanism penetrates through two ends of the shell and is accommodated in the shell 1, the rotary table mechanism comprises a hollow shaft 4 penetrating through a front end cover and a rear end cover, and 56 hollow discs 7 which are equidistantly arranged on the hollow shaft 4 in the axial direction, the hollow discs 7 are all communicated with the hollow shaft 4 through pipelines, one end of the hollow shaft 4 is rotationally communicated with a rotary joint 8, a heat medium inlet 9 is arranged on the upper portion of the rotary joint 8, a cold medium outlet 10 is arranged on the lower portion of the rotary joint 8, the heat medium is flushed into the hollow shaft 4 through the heat medium inlet 9, the heat medium is guided into the hollow discs 7 through the pipelines by the hollow shaft 4, so that the hollow shaft 4 and the hollow discs 7 can both provide the heat medium for raw materials to be dried, the drying rate is improved, the drying time is saved, and the drying cost is reduced. After the heat medium has been supplied with heat, it flows out of the housing 1 through the pipe and the cold medium outlet 10. Each hollow disc 7 is formed by welding two discs, 4 pushing sheets 11 are connected to the welding positions of the two discs of the hollow discs 7 at intervals along the radial direction, reinforcing ribs are fixedly connected between the different pushing sheets 11 on the hollow discs 7, and the bearing strength of the hollow discs 7 is improved through the reinforcing ribs. When the hollow disc 7 rotates, the pushing piece 11 is in a rotating state at the same time, so that the stirring effect on the raw materials to be dried can be realized, the caking of the raw materials to be dried is avoided, and the effect of pushing the raw materials to be dried can be realized.
The two ends of the hollow shaft 4 are respectively connected with the front end cover 5 and the rear end cover 6 in a rotating way through bearings and flanges. The outer walls of the hollow disc 7 and the hollow shaft 4 are provided with anti-sticking layers, so that raw materials to be dried are prevented from being stuck and drying efficiency is reduced. The heat medium in this embodiment is water vapor. The driving device comprises a driving mechanism and a transmission mechanism connected with the driving mechanism, and the transmission mechanism is rotationally connected with one end of the hollow shaft far away from the rotary joint. The drive mechanism includes a motor and a transmission. The transmission mechanism is a chain transmission mechanism, and the chain transmission mechanism comprises a driving wheel connected with a motor, a chain with one end connected with the driving wheel, a driven wheel 12 connected with the other end of the chain, and a bearing connected between the driven wheel 12 and the hollow shaft 4. When the motor rotates, the driving wheel drives the chain to rotate, the driven wheel 12 is driven by the chain to rotate, the driven wheel 12 drives the hollow shaft 4 to rotate, and the hollow disc 7 is driven to rotate, so that the raw materials to be dried are stirred and dried. The upper part of the heating jacket 21 on the shell 1 is provided with a scraper device, the scraper device comprises a connecting plate 22 connected with the shell 1 and 27 scrapers 20 equidistantly arranged on the connecting plate 22, and each scraper 20 is positioned between two hollow discs 19. When the hollow shaft 4 rotates, the shell 1 is static relative to the hollow discs 19 relative to the static scraper 20 of the hollow shaft 4, so that caking and drying matters between two adjacent hollow discs 19 can be broken, the replacement speed of a drying surface is improved, and the drying efficiency is improved.
A honeycomb plate 14 is arranged at the middle lower part of the outer wall of the shell 1, the honeycomb plate 14 and the shell 1 are surrounded to form a hollow heating jacket 21, and a hot medium inlet and a cold medium outlet are arranged on the honeycomb plate 14. The upper part of the shell is designed into a dome 15, and the content of tail gas dust can be reduced by the higher dome 15. By arranging the honeycomb plate 14 and the shell 1 to form the hollow heating jacket 21, a heating medium is flushed into the heating jacket 21 to heat the raw materials in the shell 1, and a heat source with the heating medium is introduced besides the hollow shaft 4 and the hollow disc 7, so that the drying efficiency is improved. And the honeycomb plate 14 can enable the heating medium to be in a turbulent flow state in the heating jacket 21, so that the mass transfer efficiency is further improved, the heat in the heating medium can be better and more transferred to the drying raw material, the drying efficiency is improved, and the drying time is shortened. An overhaul window 18 is formed in the top of the shell 1, the convenience of operation during overhaul of the dryer is improved, a tail gas outlet 16 and an air inlet 17 are formed in the top of the shell, and a fan device is connected to the tail gas outlet 16. The fan device comprises a fan, tail gas is pulled out through the fan, so that the tail gas is not easy to dew, and drying and evaporating efficiency of the drying raw material is promoted. The working pressure inside the shell 1 and the hollow disc 7 is 1Mpa, and maintaining stable working pressure is beneficial to improving the drying rate. The dryer in this example was able to dry sludge having a water content of 85% to a water content of 15%.
The anti-sticking layer is divided into a bonding layer and a polytetrafluoroethylene layer from bottom to top, wherein the bonding layer comprises, by weight, 10 parts of methyl methacrylate, 10 parts of butyl acrylate, 10 parts of 2- (perfluorooctyl) ethyl methacrylate, 10 parts of vinyl trimethoxysilane, 0.5 part of sodium dodecyl sulfate, 0.5 part of p-octyl phenol polyoxyethylene ether, 1 part of sodium persulfate, 0.5 part of hydroxypropyl methylcellulose, 1 part of inorganic filler and 50 parts of water, the methyl methacrylate is purchased from Jinan ohui chemical company, the brand is ohui, and the butyl acrylate is purchased from Shandong Xue morning chemical engineering Co, the brand is: 00, wherein the 2- (perfluorooctyl) ethyl methacrylate is purchased from Hubei jin Leda chemical industry Co., ltd, CAS (CAS: 1996-88-9), the octyl phenol polyoxyethylene ether is purchased from Jiangsu maheng chemical industry Co., ltd, the hydroxypropyl methylcellulose is purchased from Armadillidium double chemical industry product factories, and the viscosity of the hydroxypropyl methylcellulose is 10 ten thousand mPa.s. The polytetrafluoroethylene layer is mainly prepared from polytetrafluoroethylene, the polytetrafluoroethylene is emulsion, and the polytetrafluoroethylene emulsion is purchased from Taicang Kelda plastic raw material Co., ltd, and the brand is 121D.
The inorganic filler is nano silicon carbide, the particle size of the nano silicon carbide is 50nm, and the nano silicon carbide is purchased from Yi Jin Xincai.
The preparation method of the bonding layer mainly comprises the following steps:
(1) Methyl methacrylate, butyl acrylate, 2- (perfluorooctyl) ethyl methacrylate, vinyltrimethoxysilane, sodium dodecyl sulfate, p-octylphenol polyoxyethylene ether and water are mixed and stirred to obtain a mixture A;
(2) Mixing one third of the mixture A with the same amount of water at 885 ℃, adding one third of sodium persulfate, reacting for 20min, and dripping the rest mixture A and sodium persulfate to obtain a mixture B;
(3) After the mixture was cooled to room temperature, the pH was adjusted to 7 using aqueous ammonia to give mixture C;
(4) Adding nano silicon carbide into the mixture C and stirring, and then adding hydroxypropyl methylcellulose and stirring to obtain the nano silicon carbide.
The adhesive layer is formed by a coating mode, and the polytetrafluoroethylene layer is formed by a spraying mode.
Example 2
This example differs from example 1 in that the adhesive layer was prepared from, by weight, 30 parts of methyl methacrylate, 30 parts of butyl acrylate, 10 parts of 2- (perfluorooctyl) ethyl methacrylate, 10 parts of vinyltrimethoxysilane, 2 parts of sodium dodecyl sulfate, 2 parts of p-octylphenol polyoxyethylene ether, 2 parts of sodium persulfate, 2 parts of hydroxypropyl methylcellulose, 2 parts of an inorganic filler, and 150 parts of water, the methyl methacrylate being purchased from austochi chemical company, trade name austochi, the butyl acrylate being purchased from shandong and the rising morning chemical technology company, trade name: 00, wherein the 2- (perfluorooctyl) ethyl methacrylate is purchased from Hubei jin Leda chemical industry Co., ltd, CAS (CAS: 1996-88-9), the octyl phenol polyoxyethylene ether is purchased from Jiangsu maheng chemical industry Co., ltd, the hydroxypropyl methylcellulose is purchased from Armadillidium double chemical industry product factories, and the viscosity of the hydroxypropyl methylcellulose is 10 ten thousand mPa.s. The polytetrafluoroethylene layer is mainly prepared from polytetrafluoroethylene, the polytetrafluoroethylene is emulsion, and the polytetrafluoroethylene emulsion is purchased from Taicang Kelda plastic raw material Co., ltd, and the brand is 121D. The inorganic filler is nano silicon carbide, the particle size of the nano silicon carbide is 50nm, and the nano silicon carbide is purchased from Yi Jin Xincai.
The preparation method of the bonding layer mainly comprises the following steps:
(1) Methyl methacrylate, butyl acrylate, 2- (perfluorooctyl) ethyl methacrylate, vinyltrimethoxysilane, sodium dodecyl sulfate, p-octylphenol polyoxyethylene ether and water are mixed and stirred to obtain a mixture A;
(2) Mixing one third of the mixture A with the same amount of water at 885 ℃, adding one third of sodium persulfate, reacting for 20min, and dripping the rest mixture A and sodium persulfate to obtain a mixture B;
(3) After the mixture was cooled to room temperature, the pH was adjusted to 7 using aqueous ammonia to give mixture C;
(4) Adding nano silicon carbide into the mixture C and stirring, and then adding hydroxypropyl methylcellulose and stirring to obtain the nano silicon carbide.
Example 3
This example differs from example 1 in that the adhesive layer was prepared from, by weight, 30 parts of methyl methacrylate, 30 parts of butyl acrylate, 10 parts of 2- (perfluorooctyl) ethyl methacrylate, 10 parts of vinyltrimethoxysilane, 2 parts of sodium dodecyl sulfate, 2 parts of p-octylphenol polyoxyethylene ether, 2 parts of sodium persulfate, 2 parts of hydroxypropyl methylcellulose, 2 parts of an inorganic filler, and 150 parts of water, the methyl methacrylate being purchased from austochi chemical company, trade name austochi, the butyl acrylate being purchased from shandong and the rising morning chemical technology company, trade name: 00, wherein the 2- (perfluorooctyl) ethyl methacrylate is purchased from Hubei jin Leda chemical industry Co., ltd, CAS (CAS: 1996-88-9), the octyl phenol polyoxyethylene ether is purchased from Jiangsu maheng chemical industry Co., ltd, the hydroxypropyl methylcellulose is purchased from Armadillidium double chemical industry product factories, and the viscosity of the hydroxypropyl methylcellulose is 15 ten thousand mPa.s. The polytetrafluoroethylene layer is mainly prepared from polytetrafluoroethylene, the polytetrafluoroethylene is emulsion, and the polytetrafluoroethylene emulsion is purchased from Taicang Kelda plastic raw material Co., ltd, and the brand is 121D. The inorganic filler is nano silicon carbide, the particle size of the nano silicon carbide is 50nm, and the nano silicon carbide is purchased from Yi Jin Xincai.
The preparation method of the bonding layer mainly comprises the following steps:
(1) Methyl methacrylate, butyl acrylate, 2- (perfluorooctyl) ethyl methacrylate, vinyltrimethoxysilane, sodium dodecyl sulfate, p-octylphenol polyoxyethylene ether and water are mixed and stirred to obtain a mixture A;
(2) Mixing one third of the mixture A with the same amount of water at 885 ℃, adding one third of sodium persulfate, reacting for 20min, and dripping the rest mixture A and sodium persulfate to obtain a mixture B;
(3) After the mixture was cooled to room temperature, the pH was adjusted to 7 using aqueous ammonia to give mixture C;
(4) Adding nano silicon carbide into the mixture C and stirring, and then adding hydroxypropyl methylcellulose and stirring to obtain the nano silicon carbide.
Example 4
This example differs from example 1 in that the adhesive layer was prepared from, by weight, 30 parts of methyl methacrylate, 30 parts of butyl acrylate, 10 parts of 2- (perfluorooctyl) ethyl methacrylate, 10 parts of vinyltrimethoxysilane, 2 parts of sodium dodecyl sulfate, 2 parts of p-octylphenol polyoxyethylene ether, 2 parts of sodium persulfate, 2 parts of an inorganic filler, and 150 parts of water, the methyl methacrylate being purchased from the company of chemical industry, ohui, trade name ohui, the butyl acrylate being purchased from the company of chemical industry, trade name of shandong, and the butyl acrylate being purchased from the company of chemical industry, trade name of shandong, ohui: 00, wherein the 2- (perfluorooctyl) ethyl methacrylate is purchased from Hubei jin Leda chemical industry Co., ltd, CAS 1996-88-9, the octyl phenol polyoxyethylene ether is purchased from Jiangsu maheng chemical industry Co., ltd, and the hydroxypropyl methylcellulose is purchased from double chemical industry product factories in Armadillidium city. The polytetrafluoroethylene layer is mainly prepared from polytetrafluoroethylene, the polytetrafluoroethylene is emulsion, and the polytetrafluoroethylene emulsion is purchased from Taicang Kelda plastic raw material Co., ltd, and the brand is 121D. The inorganic filler is nano silicon carbide, the particle size of the nano silicon carbide is 50nm, and the nano silicon carbide is purchased from Yi Jin Xincai.
The preparation method of the bonding layer mainly comprises the following steps:
(1) Methyl methacrylate, butyl acrylate, 2- (perfluorooctyl) ethyl methacrylate, vinyltrimethoxysilane, sodium dodecyl sulfate, p-octylphenol polyoxyethylene ether and water are mixed and stirred to obtain a mixture A;
(2) Mixing one third of the mixture A with the same amount of water at 885 ℃, adding one third of sodium persulfate, reacting for 20min, and dripping the rest mixture A and sodium persulfate to obtain a mixture B;
(3) After the mixture was cooled to room temperature, the pH was adjusted to 7 using aqueous ammonia to give mixture C;
(4) Adding nano silicon carbide into the mixture C and stirring to obtain the nano silicon carbide.
Example 5
This example differs from example 1 in that the adhesive layer was prepared from, by weight, 30 parts of methyl methacrylate, 30 parts of butyl acrylate, 10 parts of 2- (perfluorooctyl) ethyl methacrylate, 10 parts of vinyltrimethoxysilane, 2 parts of sodium dodecyl sulfate, 2 parts of p-octylphenol polyoxyethylene ether, 2 parts of sodium persulfate, 2 parts of hydroxypropyl methylcellulose, 2 parts of an inorganic filler, and 150 parts of water, the methyl methacrylate being purchased from austochi chemical company, trade name austochi, the butyl acrylate being purchased from shandong and the rising morning chemical technology company, trade name: 00, wherein the 2- (perfluorooctyl) ethyl methacrylate is purchased from Hubei jin Leda chemical industry Co., ltd, CAS (CAS: 1996-88-9), the octyl phenol polyoxyethylene ether is purchased from Jiangsu maheng chemical industry Co., ltd, the hydroxypropyl methylcellulose is purchased from Armadillidium double chemical industry product factories, and the viscosity of the hydroxypropyl methylcellulose is 5 ten thousand mPa.s. The polytetrafluoroethylene layer is mainly prepared from polytetrafluoroethylene, the polytetrafluoroethylene is emulsion, and the polytetrafluoroethylene emulsion is purchased from Taicang Kelda plastic raw material Co., ltd, and the brand is 121D. The inorganic filler is nano silicon carbide, the particle size of the nano silicon carbide is 50nm, and the nano silicon carbide is purchased from Yi Jin Xincai.
The preparation method of the bonding layer mainly comprises the following steps:
(1) Methyl methacrylate, butyl acrylate, 2- (perfluorooctyl) ethyl methacrylate, vinyltrimethoxysilane, sodium dodecyl sulfate, p-octylphenol polyoxyethylene ether and water are mixed and stirred to obtain a mixture A;
(2) Mixing one third of the mixture A with the same amount of water at 885 ℃, adding one third of sodium persulfate, reacting for 20min, and dripping the rest mixture A and sodium persulfate to obtain a mixture B;
(3) After the mixture was cooled to room temperature, the pH was adjusted to 7 using aqueous ammonia to give mixture C;
(4) Adding nano silicon carbide into the mixture C and stirring, and then adding hydroxypropyl methylcellulose and stirring to obtain the nano silicon carbide.
Example 6
This example differs from example 1 in that the adhesive layer was prepared from, by weight, 30 parts of methyl methacrylate, 30 parts of butyl acrylate, 10 parts of 2- (perfluorooctyl) ethyl methacrylate, 10 parts of vinyltrimethoxysilane, 2 parts of sodium dodecyl sulfate, 2 parts of p-octylphenol polyoxyethylene ether, 2 parts of sodium persulfate, 2 parts of hydroxypropyl methylcellulose, 2 parts of an inorganic filler, and 150 parts of water, the methyl methacrylate being purchased from austochi chemical company, trade name austochi, the butyl acrylate being purchased from shandong and the rising morning chemical technology company, trade name: 00, wherein the 2- (perfluorooctyl) ethyl methacrylate is purchased from Hubei jin Leda chemical industry Co., ltd, CAS (CAS: 1996-88-9), the octyl phenol polyoxyethylene ether is purchased from Jiangsu maheng chemical industry Co., ltd, the hydroxypropyl methylcellulose is purchased from Armadillidium double chemical industry product factories, and the viscosity of the hydroxypropyl methylcellulose is 10 ten thousand mPa.s. The polytetrafluoroethylene layer is mainly prepared from polytetrafluoroethylene, the polytetrafluoroethylene is emulsion, and the polytetrafluoroethylene emulsion is purchased from Taicang Kelda plastic raw material Co., ltd, and the brand is 121D. The inorganic filler is nano silicon carbide, the particle size of the nano silicon carbide is 800nm, and the nano silicon carbide is purchased from Yi Jin Xincai.
The preparation method of the bonding layer mainly comprises the following steps:
(1) Methyl methacrylate, butyl acrylate, 2- (perfluorooctyl) ethyl methacrylate, vinyltrimethoxysilane, sodium dodecyl sulfate, p-octylphenol polyoxyethylene ether and water are mixed and stirred to obtain a mixture A;
(2) Mixing one third of the mixture A with the same amount of water at 885 ℃, adding one third of sodium persulfate, reacting for 20min, and dripping the rest mixture A and sodium persulfate to obtain a mixture B;
(3) After the mixture was cooled to room temperature, the pH was adjusted to 7 using aqueous ammonia to give mixture C;
(4) Adding nano silicon carbide into the mixture C and stirring, and then adding hydroxypropyl methylcellulose and stirring to obtain the nano silicon carbide.
Example 7
This example differs from example 1 in that the adhesive layer is prepared from, by weight, 30 parts of methyl methacrylate, 30 parts of butyl acrylate, 10 parts of vinyltrimethoxysilane, 2 parts of sodium dodecyl sulfate, 2 parts of p-octylphenol polyoxyethylene ether, 2 parts of sodium persulfate, 2 parts of hydroxypropyl methylcellulose, 2 parts of an inorganic filler, and 150 parts of water, the methyl methacrylate being purchased from atan austochi chemical Co., trade name being austochi, the butyl acrylate being purchased from Shandong Xuechen chemical technology Co., trade name: 00, wherein the 2- (perfluorooctyl) ethyl methacrylate is purchased from Hubei jin Leda chemical industry Co., ltd, CAS (CAS: 1996-88-9), the octyl phenol polyoxyethylene ether is purchased from Jiangsu maheng chemical industry Co., ltd, the hydroxypropyl methylcellulose is purchased from Armadillidium double chemical industry product factories, and the viscosity of the hydroxypropyl methylcellulose is 10 ten thousand mPa.s. The polytetrafluoroethylene layer is mainly prepared from polytetrafluoroethylene, the polytetrafluoroethylene is emulsion, and the polytetrafluoroethylene emulsion is purchased from Taicang Kelda plastic raw material Co., ltd, and the brand is 121D. The inorganic filler is nano silicon carbide, the particle size of the nano silicon carbide is 50nm, and the nano silicon carbide is purchased from Yi Jin Xincai.
The preparation method of the bonding layer mainly comprises the following steps:
(1) Mixing and stirring methyl methacrylate, butyl acrylate, vinyl trimethoxy silane, sodium dodecyl sulfate, p-octyl phenol polyoxyethylene ether and water to obtain a mixture A;
(2) Mixing one third of the mixture A with the same amount of water at 885 ℃, adding one third of sodium persulfate, reacting for 20min, and dripping the rest mixture A and sodium persulfate to obtain a mixture B;
(3) After the mixture was cooled to room temperature, the pH was adjusted to 7 using aqueous ammonia to give mixture C;
(4) Adding nano silicon carbide into the mixture C and stirring, and then adding hydroxypropyl methylcellulose and stirring to obtain the nano silicon carbide.
Example 8
This example differs from example 1 in that the adhesive layer was prepared from, by weight, 30 parts of methyl methacrylate, 30 parts of butyl acrylate, 10 parts of 2- (perfluorooctyl) ethyl methacrylate, 2 parts of sodium dodecyl sulfate, 2 parts of p-octylphenol polyoxyethylene ether, 2 parts of sodium persulfate, 2 parts of hydroxypropyl methylcellulose, 2 parts of an inorganic filler, and 150 parts of water, the methyl methacrylate being purchased from the company of chemical industry, ohui, trade name ohui, the butyl acrylate being purchased from the company of chemical industry, trade name of shandong, and the trade name being: 00, wherein the 2- (perfluorooctyl) ethyl methacrylate is purchased from Hubei jin Leda chemical industry Co., ltd, CAS (CAS: 1996-88-9), the octyl phenol polyoxyethylene ether is purchased from Jiangsu maheng chemical industry Co., ltd, the hydroxypropyl methylcellulose is purchased from Armadillidium double chemical industry product factories, and the viscosity of the hydroxypropyl methylcellulose is 10 ten thousand mPa.s. The polytetrafluoroethylene layer is mainly prepared from polytetrafluoroethylene, the polytetrafluoroethylene is emulsion, and the polytetrafluoroethylene emulsion is purchased from Taicang Kelda plastic raw material Co., ltd, and the brand is 121D. The inorganic filler is nano silicon carbide, the particle size of the nano silicon carbide is 50nm, and the nano silicon carbide is purchased from Yi Jin Xincai.
The preparation method of the bonding layer mainly comprises the following steps:
(1) Methyl methacrylate, butyl acrylate, 2- (perfluorooctyl) ethyl methacrylate, sodium dodecyl sulfate, p-octylphenol polyoxyethylene ether and water are mixed and stirred to obtain a mixture A;
(2) Mixing one third of the mixture A with the same amount of water at 885 ℃, adding one third of sodium persulfate, reacting for 20min, and dripping the rest mixture A and sodium persulfate to obtain a mixture B;
(3) After the mixture was cooled to room temperature, the pH was adjusted to 7 using aqueous ammonia to give mixture C;
(4) Adding nano silicon carbide into the mixture C and stirring, and then adding hydroxypropyl methylcellulose and stirring to obtain the nano silicon carbide.
Performance testing
Performance test 1
Referring to the preparation methods of the adhesive layer and the polytetrafluoroethylene layer in examples 1 to 8, the adhesive layer was coated and the polytetrafluoroethylene layer was sprayed on the inside of the iron can body, and then the can body was placed in an oven at 100 ℃ for 48 hours, and whether the adhesive layer was separated from the can body or whether the polytetrafluoroethylene layer was separated from the adhesive layer was observed, and any of the records of separation was failed, and the record of no separation was failed, to evaluate the high temperature resistance.
Performance test II
Referring to the preparation methods of the adhesive layer and the polytetrafluoroethylene layer in examples 1 to 8, the adhesive layer was coated and the polytetrafluoroethylene layer was sprayed on the inside of the iron can body, after which the iron can body was filled with sludge having a water content of 80%, and then placed in an oven at 100 ℃ for 48 hours, and whether the adhesive layer was separated from the can body or whether the polytetrafluoroethylene layer was separated from the adhesive layer was observed, and any of the records of the separation was failed, and the record of the separation was failed, to evaluate the stability.
Performance test III
Referring to the preparation methods of the adhesive layer and the polytetrafluoroethylene layer in examples 1 to 8, the adhesive layer was coated and the polytetrafluoroethylene layer was sprayed on the inside of the iron can body, then the iron can body was filled with sludge having a water content of 80%, then the iron can body was placed in an oscillator for 50 revolutions per minute, the sludge was poured out after 48 hours of oscillation, and whether the adhesive layer was separated from the can body or whether the polytetrafluoroethylene layer was separated from the adhesive layer was observed, and the record of any one of the separation layers was failed, and the record of the separation was failed, so as to evaluate the abrasion resistance.
The test shows that the hydroxypropyl methylcellulose with certain viscosity can better improve the binding force between the binding layer and the metal layer as well as between the binding layer and the polytetrafluoroethylene, thereby further improving the stability and the friction resistance of the anti-sticking layer and prolonging the service life of the multifunctional dryer. The vinyl trimethoxy silane and the 2- (perfluorooctyl) ethyl methacrylate can improve the adhesive force between the adhesive layer and the polytetrafluoroethylene layer, and improve the overall stability and high temperature resistance.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the invention in any way, and any person skilled in the art may make modifications or alterations to the disclosed technical content to equivalent embodiments without departing from the technical content of the present invention, and any simple modification, equivalent changes and alterations to the above embodiments according to the technical substance of the present invention still fall within the scope of the technical solution of the present invention.
Claims (8)
1. The multifunctional dryer is characterized by comprising a shell with a front end cover and a rear end cover, wherein a feed inlet is arranged at the upper part of the shell, a discharge outlet is arranged at the lower part of the shell, and an anti-sticking layer is arranged on the inner wall of the shell; the rotary table mechanism penetrates through two ends of the shell and is accommodated in the shell, the rotary table mechanism comprises a hollow shaft and a plurality of hollow discs which are equidistantly arranged in the axial direction of the hollow shaft, the hollow discs are communicated with the hollow shaft through pipelines, one end of the hollow shaft is rotationally communicated with a rotary joint, the upper part of the rotary joint is provided with a heat medium inlet, the lower part of the rotary joint is provided with a cold medium outlet, and anti-sticking layers are arranged on the outer walls of the hollow discs and the hollow shaft; the driving device comprises a driving mechanism and a transmission mechanism connected with the driving mechanism, and the transmission mechanism is rotationally connected with one end of the hollow shaft far away from the rotary joint;
A honeycomb plate is arranged at the middle lower part of the outer wall of the shell, the honeycomb plate and the shell are surrounded to form a hollow heating jacket, and a hot medium inlet and a cold medium outlet are arranged on the honeycomb plate;
the anti-sticking layer is divided into a bonding layer and a polytetrafluoroethylene layer which are bonded from bottom to top;
the adhesive layer comprises, by weight, 10-30 parts of methyl methacrylate, 10-30 parts of butyl acrylate, 5-10 parts of 2- (perfluorooctyl) ethyl methacrylate, 5-10 parts of vinyl trimethoxy silane, 0.5-2 parts of sodium dodecyl sulfate, 0.5-2 parts of p-octylphenol polyoxyethylene ether, 1-2 parts of sodium persulfate, 1-2 parts of inorganic filler and 50-150 parts of water;
the polytetrafluoroethylene layer is mainly prepared from polytetrafluoroethylene;
the raw materials for preparing the bonding layer also comprise a thickener, and the weight ratio of the methyl methacrylate to the thickener is (15-20): 1, a step of;
the thickener is hydroxypropyl methyl cellulose, and the viscosity of the hydroxypropyl methyl cellulose is 10-15 ten thousand mPa.s;
the upper portion of heating jacket on the casing installs scraper device, scraper device includes the connecting plate that is connected with the casing, equidistance locates a plurality of scrapers on the connecting plate, every scraper all is located between two hollow discs.
2. The multifunctional dryer of claim 1, wherein the two ends of the hollow shaft are respectively rotatably connected with the front end cover and the rear end cover through bearings and flanges.
3. The utility dryer of claim 1 wherein each hollow disc is welded from two discs, the spaced hollow discs being radially connected to a plurality of pusher discs at the weld.
4. A multifunctional dryer according to claim 3, wherein reinforcing ribs are fixedly connected between different pushing sheets on the hollow disc.
5. The multi-function dryer of claim 1, wherein the transmission is selected from one of a belt transmission, a chain transmission, and a gear transmission.
6. The multifunctional dryer according to claim 5, wherein the transmission mechanism is a chain transmission mechanism, and the chain transmission mechanism comprises a driving wheel connected with the driving mechanism, a chain with one end connected with the driving wheel, a driven wheel connected with the other end of the chain, and a bearing connected between the driven wheel and the hollow shaft.
7. The multifunctional dryer of any one of claims 1 to 6, wherein the top of the housing is provided with an access window.
8. A multi-function dryer according to any one of claims 1-7 for use in the drying of liquid-containing raw materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110137685.4A CN112939410B (en) | 2021-02-01 | 2021-02-01 | Multifunctional dryer and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110137685.4A CN112939410B (en) | 2021-02-01 | 2021-02-01 | Multifunctional dryer and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112939410A CN112939410A (en) | 2021-06-11 |
| CN112939410B true CN112939410B (en) | 2023-04-28 |
Family
ID=76240927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110137685.4A Active CN112939410B (en) | 2021-02-01 | 2021-02-01 | Multifunctional dryer and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112939410B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0516365A1 (en) * | 1991-05-27 | 1992-12-02 | Mitsubishi Chemical Corporation | Adhesive resin composition |
| CN201306911Y (en) * | 2008-12-06 | 2009-09-09 | 兰州瑞德干燥技术有限公司 | Polyvinyl alcohol disc type oar blade drier |
| CN203593689U (en) * | 2013-10-12 | 2014-05-14 | 天通新环境技术有限公司 | Disc-type sludge drying forming equipment |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107188387B (en) * | 2017-07-03 | 2020-02-18 | 南京航空航天大学 | Industrial sludge drying and aging device, sludge treatment system and treatment method |
-
2021
- 2021-02-01 CN CN202110137685.4A patent/CN112939410B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0516365A1 (en) * | 1991-05-27 | 1992-12-02 | Mitsubishi Chemical Corporation | Adhesive resin composition |
| CN201306911Y (en) * | 2008-12-06 | 2009-09-09 | 兰州瑞德干燥技术有限公司 | Polyvinyl alcohol disc type oar blade drier |
| CN203593689U (en) * | 2013-10-12 | 2014-05-14 | 天通新环境技术有限公司 | Disc-type sludge drying forming equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112939410A (en) | 2021-06-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108786549B (en) | Glue mixing mechanism of laminating machine | |
| CN112939410B (en) | Multifunctional dryer and application thereof | |
| CN110513976A (en) | A kind of energy-saving graphene production equipment | |
| CN205762134U (en) | A kind of Industrial Boiler manufacture device for painting | |
| CN207857288U (en) | A kind of waterproof membrane manipulator high-precision automatic double surface gluer | |
| CN207472001U (en) | A kind of hollow blade stirs drying equipment | |
| CN207566522U (en) | It is a kind of to preheat booth material machine and the equipment with booth material machine | |
| CN207497721U (en) | It is a kind of to preheat booth material machine and the equipment with booth material machine | |
| CN202465472U (en) | Drying machine for sludge | |
| CN108889760A (en) | A kind of regeneration device and application method of Oil Paint Slag | |
| CN101876073A (en) | Enameling process and enameling device for inner lining of polymer ceramic pipeline | |
| CN114798378A (en) | Carbon sheet and aluminum-silicon composite material thereof | |
| CN212736644U (en) | Feeding device for production of silicone rubber impression material | |
| CN207385494U (en) | A kind of redox arrangement of carbon nanotubes catalyst | |
| CN208959858U (en) | A kind of silicone resin takes off low device | |
| CN208839566U (en) | A kind of fluorographite mixing apparatus | |
| CN209109050U (en) | It is a kind of for producing the blender of waterproof chemical coating | |
| CN208357457U (en) | A kind of regeneration device of Oil Paint Slag | |
| CN109364867A (en) | A kind of reaction kettle device applied to vulcanizing agent production and processing | |
| CN212819891U (en) | Preheating and stirring device for preparing modified asphalt | |
| CN209423630U (en) | A kind of reaction kettle device applied to vulcanizing agent production and processing | |
| CN107601092A (en) | It is a kind of to preheat stand material machine and the equipment with stand material machine | |
| CN217951221U (en) | Main shaft seal of coulter dryer | |
| CN219377514U (en) | Reverse flotation device of high-purity quartz sand | |
| CN218249678U (en) | High-modulus modified asphalt production device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |