CN112710145B - Silica gel not easy to be stained with ash and tunnel type drying oven for production thereof - Google Patents
Silica gel not easy to be stained with ash and tunnel type drying oven for production thereof Download PDFInfo
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- CN112710145B CN112710145B CN202110084738.0A CN202110084738A CN112710145B CN 112710145 B CN112710145 B CN 112710145B CN 202110084738 A CN202110084738 A CN 202110084738A CN 112710145 B CN112710145 B CN 112710145B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
- F26B17/02—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by belts carrying the materials; with movement performed by belts or elements attached to endless belts or chains propelling the materials over stationary surfaces
- F26B17/04—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by belts carrying the materials; with movement performed by belts or elements attached to endless belts or chains propelling the materials over stationary surfaces the belts being all horizontal or slightly inclined
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
- C08L83/04—Polysiloxanes
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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
- F26B21/004—Nozzle assemblies; Air knives; Air distributors; Blow boxes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/04—Antistatic
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Silicon Compounds (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention discloses silica gel not easy to be stained with ash and a tunnel type oven for producing the same, and relates to the technical field of silica gel production; in order to avoid the heat loss and eliminate the limitation of feeding; the oven comprises a main body, wherein mounting frames are arranged on two sides of the main body, the inner walls of the mounting frames on the two sides are respectively connected with two rollers in a rotating mode through shafts, a motor is fixed on the outer wall of one side of one mounting frame through screws, and one roller is connected to the output end of the motor in a rotating mode through a shaft; the silica gel comprises, by weight, 150-200 parts of vinyl silicone oil, 1-2 parts of hydrogen-containing silicone oil, 15-20 parts of a catalyst and 5-10 parts of antistatic particles. According to the invention, by arranging the sealing door, the conveying chain, the linkage rod and other structures, when the conveying belt conveys materials, the conveying chain and the conveying belt synchronously rotate, so that the linkage rod can contact the sealing door and prop the sealing door to two sides, and the materials can conveniently pass through.
Description
Technical Field
The invention relates to the technical field of silica gel production, in particular to silica gel not easy to be stained with ash and a tunnel type oven for producing the same.
Background
In the production of silica gel, often need carry out drying process to silica gel, generally adopt tunnel oven to dry more, and present tunnel oven avoids the heat to run off, the size relatively fixed of its feed inlet, thereby have certain limit for height requirement to the material, it is great to lead to the limitation, can not satisfy multiple production demand, although the open-type feed inlet can satisfy the stoving demand of most not unidimensional material, but its heat runs off comparatively seriously, the energy has been wasted, some ovens adopt the mode of opening the door to supply the material business turn over, but the difficult control when automatic opening the door, if adopt the manual door, then the manpower has been wasted.
Through retrieval, the patent with the Chinese patent application number of CN201320471760.1 discloses a tunnel oven, which comprises an oven body, a material conveying device and at least one heating device; the material conveying device is arranged in the oven box body and comprises a speed reducing motor and a conveying belt, and the speed reducing motor is connected with the conveying belt; the heating device comprises a threaded screw rod, an adjusting bracket and a heater, the threaded screw rod is arranged at the top of the oven body and connected with the adjusting bracket, and the heater is arranged on the adjusting bracket; and the threaded screw rod is provided with an adjusting handle. The tunnel oven in the above patent has the following disadvantages: the limitation in feeding cannot be eliminated while avoiding a large loss of heat.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides silica gel which is not easy to be stained with ash and a tunnel type oven for producing the silica gel.
In order to achieve the purpose, the invention adopts the following technical scheme:
the tunnel type drying oven comprises a main body, wherein mounting frames are arranged on two sides of the main body, the inner walls of the mounting frames on the two sides are respectively connected with two rollers in a rotating mode through shafts, a motor is fixed on the outer wall of one side of one mounting frame through screws, one roller is connected to the output end of the motor in a rotating mode through a shaft, the outer walls of the circumferences of the two rollers are connected with the same conveying belt in a rotating mode, and the outer walls of the circumferences of the two ends of the rollers are meshed with two symmetrical conveying chains; the utility model discloses a conveying chain, including conveyer chain, screw, threaded post, main part top, sealing door, discharge gate, conveying chain, the outer wall of one side of conveyer chain has evenly distributed's erection column through the screw fixation, the threaded post is installed through screw detachable to erection column top inner wall, threaded post top integral type is provided with the gangbar, the main part both sides are provided with feed inlet and discharge gate respectively, and feed inlet and discharge gate department of main part all install two sealing door through the spring hinge, the distance of sealing door bottom to the conveyer chain is less than the length of gangbar, is provided with stoving mechanism in the main part.
Preferably: the outer wall of one side of the sealing door is detachably provided with uniformly distributed fixing plates through assembling bolts, and the same elastic crumpled belt is bonded between the two fixing plates.
Further: and the outer wall of the top of the linkage rod is rotatably provided with a roller through a support frame.
Further preferred is: the drying mechanism comprises an air heater and two edge baffles, the two edge baffles are fixed on the inner side wall of the main body through screws, a circulation cavity is arranged between the two edge baffles, the inner walls of two sides of the circulation cavity are of arc-surface structures, and the air heater is fixed on the inner wall of one side of the circulation cavity through screws.
As a preferable aspect of the present invention: the inner wall of the top of the main body is provided with a fan moving plate through a spring hinge, the outer walls of two sides of the bottom end of the fan moving plate are fixed with linkage plates through screws, the distance from the bottom end of each linkage plate to the conveying chain is smaller than the length of each linkage rod, and the linkage plates are matched with the linkage rods in position.
Further preferred as the invention: the inner wall of one side of the circulation cavity is bonded with elastic hollow columns which are uniformly distributed, one ends of the elastic hollow columns are provided with air holes which are uniformly distributed, and the positions of the elastic hollow columns are matched with the linkage rods.
The silica gel not easy to be stained with ash comprises, by weight, 150-200 parts of vinyl silicone oil, 1-2 parts of hydrogen-containing silicone oil, 15-20 parts of a catalyst and 5-10 parts of antistatic particles.
On the basis of the scheme: the preparation method of the silica gel not easy to be stained with ash comprises the following steps:
s1: taking all raw materials for later use;
s2: heating the anti-static particles for preliminary melting;
s3: uniformly mixing vinyl silicone oil, hydrogen-containing silicone oil, a catalyst and melted antistatic particles;
s4: melt-extruding the mixed materials;
s5: installing a corresponding number of linkage rods according to the material quantity;
s6: placing the extruded material in a mould and conveying the material into a main body by a conveying belt for drying;
s7: and discharging after drying to obtain a silica gel product.
On the basis of the foregoing scheme, it is preferable that: the catalyst adopts 2, 4-dichlorobenzoyl peroxide, and in the step S6, the drying temperature is controlled to be 80-120 ℃.
The invention has the beneficial effects that:
1. according to the invention, by arranging the structures such as the sealing door, the conveying chain and the linkage rod, the linkage rod can be arranged on the corresponding mounting column according to the size of single feeding, so that the distribution length of the linkage rod is ensured to be consistent with the length of silica gel spread on the conveying belt; when the conveyer belt is carried the material, the transfer chain rotates with the conveyer belt is synchronous, make the gangbar can contact sealing door, and prop the sealing door to both sides, thereby the material of being convenient for passes through, and because the gangbar passes through the installation of screw thread post detachable, and the length that the gangbar distributes keeps unanimous with the length that silica gel spreads on the conveyer belt, when silica gel entered into the main part, the gangbar breaks away from sealing door, sealing door resets under the effect of spring hinge, thereby seal, the heat loss that has significantly reduced, the feeding space has been ensured again simultaneously, flexibility and reliability have been promoted.
2. Through setting up fixed plate, elasticity pincher trees area isotructure, can still keep the leakproofness in material top space when sealing door struts, avoid the heat to run off, and because the fixed plate can be dismantled through assembly bolt, the user can change the distance that the below elasticity pincher trees took to the conveyer belt according to material actual conditions to adapt to the not material of co-altitude, promoted the general use nature.
3. By arranging the roller, the contact with the sealing door can be smoother, the abrasion is reduced, the reliability is improved, and the service life is prolonged; through the circulation chamber that sets up cambered surface structure, can guide when the air heater exports hot-blast, do benefit to hot-blast circulation of formation in the circulation chamber, edge baffle can carry out certain shielding to both sides to promote the circulation effect.
4. Through setting up linkage plate, fan and moving the board, can be at the in-service of conveying chain along with the conveyer belt, through gyro wheel and linkage plate contact to fan the board to one side jack-up, after the linkage plate breaks away from the gyro wheel, fan the board and restore to the throne under the spring hinge effect, thereby the fan moves inside air, when gangbar installation quantity is a plurality of, can make the fan move the board and move repeatedly the fan, has promoted air flow ability, has strengthened the stoving effect.
5. Through setting up the hollow post of elasticity and gas pocket, can utilize the gangbar contact and extrude the hollow post of elasticity at the conveying chain during operation for the hollow post of elasticity deformation, thereby produce the air current in gas pocket department, further promoted air flowability.
Drawings
FIG. 1 is a schematic structural diagram of the tunnel type oven for producing silica gel which is not easy to be stained with ash and provided by the invention;
FIG. 2 is a schematic structural diagram of a tunnel oven conveyor belt and a conveyor chain for producing silica gel which is not easy to be stained with ash according to the present invention;
FIG. 3 is an enlarged view at A in FIG. 2;
FIG. 4 is a schematic structural view of an elastic crumple belt of a tunnel oven for producing silica gel, which is not easy to be stained with ash and provided by the invention;
FIG. 5 is a schematic structural view of a tunnel oven circulation cavity and a fan plate for producing silica gel which is not easy to be stained with ash according to the present invention;
fig. 6 is a schematic structural diagram of an elastic hollow column of a tunnel type oven for producing silica gel, which is not easy to be stained with ash.
In the figure: the device comprises a main body 1, a sealing door 2, a conveyor belt 3, a mounting rack 4, a roller 5, a motor 6, a conveyor chain 7, a mounting column 8, a linkage rod 9, a roller 10, a support frame 11, a threaded column 12, a fixing plate 13, an elastic crease belt 14, an assembly bolt 15, a fan-shaped plate 16, an air heater 17, a linkage plate 18, a circulation cavity 19, an edge baffle 20, an air hole 21 and an elastic hollow column 22.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.
In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the figures, which are based on the orientations and positional relationships shown in the figures, and are used for convenience in describing the patent and for simplicity in description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be construed as limiting the patent.
In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by one of ordinary skill in the art as appropriate.
Example 1:
a tunnel type drying oven for silica gel production not prone to being stained with dust is disclosed, and shown in figures 1-6, the tunnel type drying oven comprises a main body 1, mounting frames 4 are arranged on two sides of the main body 1, the inner walls of the mounting frames 4 on the two sides are respectively connected with two rollers 5 in a rotating mode through shafts, a motor 6 is fixed to the outer wall of one side of one mounting frame 4 through screws, one roller 5 is connected to the output end of the motor 6 in a rotating mode through a shaft, the outer circumferential walls of the two rollers 5 are connected with the same conveying belt 3 in a rotating mode, and two symmetrical conveying chains 7 are meshed with the outer circumferential walls of the two ends of the roller 5; the outer wall of one side of the conveying chain 7 is fixed with uniformly distributed mounting columns 8 through screws, the inner wall of the top of each mounting column 8 is detachably provided with a threaded column 12 through threads, the top of each threaded column 12 is integrally provided with a linkage rod 9, two sides of the main body 1 are respectively provided with a feeding port and a discharging port, the feeding port and the discharging port of the main body 1 are respectively provided with two sealing doors 2 through spring hinges, the distance from the bottom of each sealing door 2 to the conveying chain 7 is smaller than the length of each linkage rod 9, and a drying mechanism is arranged in the main body 1; by arranging the sealing door 2, the conveying chain 7, the linkage rod 9 and other structures, the linkage rod 9 can be arranged on the corresponding mounting column 8 according to the size of single feeding, and the length of the linkage rod 9 is ensured to be consistent with the length of silica gel spread on the conveying belt 3; when 3 transported substance material at conveyer belt, transfer link 7 rotates with conveyer belt 3 is synchronous, make gangbar 9 can contact sealing door 2, and strut sealing door 2 to both sides, thereby the material of being convenient for passes through, and because gangbar 9 passes through the installation of screw thread post 12 detachable, and the length that gangbar 9 distributes keeps unanimous with the length that silica gel spreads out on conveyer belt 3, when silica gel gets into in main part 1, gangbar 9 breaks away from sealing door 2, sealing door 2 resets under the effect of spring hinge, thereby seal, the heat loss that has significantly reduced, the feeding space has been ensured again simultaneously, flexibility and reliability have been promoted.
To further avoid heat loss; as shown in fig. 4, the outer wall of one side of the sealing door 2 is detachably provided with fixing plates 13 which are uniformly distributed through assembling bolts 15, and the same elastic crumple belt 14 is bonded between the two fixing plates 13; through setting up fixed plate 13, the pincher trees of elasticity area 14 isotructures, can still keep the leakproofness in material top space when sealing door 2 struts, avoid the heat to run off, and because fixed plate 13 can be dismantled through assembly bolt 15, the user can change the distance of below elasticity pincher trees area 14 to conveyer belt 3 according to material actual conditions to adapt to the not material of co-altitude, promoted the general purpose nature.
In order to improve the fluency of linkage; as shown in fig. 3, the outer wall of the top of the linkage rod 9 is rotatably provided with a roller 10 through a support frame 11; through setting up gyro wheel 10, can be more level and smooth with sealing door 2 contact, reduced wearing and tearing, promoted reliability and life.
In order to improve the drying effect; as shown in fig. 5, the drying mechanism includes a hot air blower 17 and two edge baffles 20, the two edge baffles 20 are fixed on the inner side wall of the main body 1 by screws, a circulation cavity 19 is arranged between the two edge baffles 20, the inner walls of two sides of the circulation cavity 19 are in an arc structure, and the hot air blower 17 is fixed on the inner wall of one side of the circulation cavity 19 by screws; through the circulation chamber 19 that sets up the cambered surface structure, can guide when air heater 17 exports the hot-blast, do benefit to hot-blast formation circulation in circulation chamber 19, edge baffle 20 can carry out certain shielding to both sides to promote the circulation effect.
In order to further improve the drying effect; as shown in fig. 5 and 6, a fan plate 16 is mounted on the inner wall of the top of the main body 1 through a spring hinge, linkage plates 18 are fixed on the outer walls of two sides of the bottom end of the fan plate 16 through screws, the distance from the bottom end of each linkage plate 18 to the conveying chain 7 is smaller than the length of each linkage rod 9, and the linkage plates 18 are matched with the linkage rods 9 in position; through setting up linkage board 18, fan movable plate 16, can be at conveying chain 7 along with the operation of conveyer belt 3, through gyro wheel 10 and linkage board 18 contact to fan movable plate 16 to one side jack-up, linkage board 18 breaks away from behind the gyro wheel 10, and fan movable plate 16 resets under the spring hinge effect, thereby fans and moves inside air, when gangbar 9 installation quantity is a plurality of, can make fan movable plate 16 fan repeatedly, has promoted air flow ability, has strengthened the stoving effect.
To further enhance the air fluidity within the circulation chamber 19; as shown in fig. 5 and 6, uniformly distributed elastic hollow columns 22 are bonded on the inner wall of one side of the circulation cavity 19, uniformly distributed air holes 21 are formed in one ends of the elastic hollow columns 22, and the positions of the elastic hollow columns 22 are matched with the linkage rod 9; through setting up the hollow post 22 of elasticity and gas pocket 21, can utilize gangbar 9 contact and extrude the hollow post 22 of elasticity when conveying chain 7 during operation for the hollow post 22 of elasticity deforms, thereby produces the air current in gas pocket 21 department, has further promoted air flow nature.
Example 2:
the silica gel not easy to be stained with ash comprises, by weight, 150-200 parts of vinyl silicone oil, 1-2 parts of hydrogen-containing silicone oil, 15-20 parts of a catalyst and 5-10 parts of antistatic particles.
The preparation method of the silica gel not easy to be stained with ash comprises the following steps:
s1: taking all raw materials for later use;
s2: heating the anti-static particles for preliminary melting;
s3: uniformly mixing vinyl silicone oil, hydrogen-containing silicone oil, a catalyst and melted antistatic particles;
s4: melt-extruding the mixed materials;
s5: installing a corresponding number of linkage rods 9 according to the material quantity;
s6: placing the extruded material in a mould and conveying the material into the main body 1 by a conveying belt 3 for drying;
s7: and discharging after drying to obtain a silica gel product.
Wherein the catalyst adopts 2, 4-dichlorobenzoyl peroxide, and in the step S6, the drying temperature is controlled to be 80-120 ℃.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (4)
1. The tunnel type drying oven comprises a main body (1) and is characterized in that mounting frames (4) are arranged on two sides of the main body (1), the inner walls of the mounting frames (4) on the two sides are respectively connected with two rollers (5) in a rotating mode through shafts, a motor (6) is fixed on the outer wall of one side of one mounting frame (4) through screws, one roller (5) is connected to the output end of the motor (6) in a rotating mode through a shaft, the outer walls of the circumferences of the two rollers (5) are connected with the same conveying belt (3) in a rotating mode, and two symmetrical conveying chains (7) are meshed with the outer walls of the circumferences of the two ends of each roller (5); the outer wall of one side of the conveying chain (7) is fixed with uniformly distributed mounting columns (8) through screws, the inner wall of the top of each mounting column (8) is provided with a threaded column (12) through threads in a detachable mode, a linkage rod (9) is integrally arranged at the top of each threaded column (12), a feeding port and a discharging port are respectively arranged on two sides of the main body (1), two sealing doors (2) are mounted at the feeding port and the discharging port of the main body (1) through spring hinges, the distance from the bottom of each sealing door (2) to the conveying chain (7) is smaller than the length of each linkage rod (9), a drying mechanism is arranged in the main body (1), uniformly distributed fixing plates (13) are detachably mounted on the outer wall of one side of each sealing door (2) through assembling bolts (15), and the same elastic crumple belt (14) is bonded between the two fixing plates (13); the novel conveying device is characterized in that a fan movable plate (16) is arranged on the inner wall of the top of the main body (1) through a spring hinge, linkage plates (18) are fixed to the outer walls of the two sides of the bottom end of the fan movable plate (16) through screws, the distance from the bottom end of each linkage plate (18) to a conveying chain (7) is smaller than the length of each linkage rod (9), and the linkage plates (18) are matched with the linkage rods (9) in position.
2. The tunnel type oven for producing silica gel not easy to be stained with ash as claimed in claim 1, characterized in that the roller (10) is rotatably mounted on the outer wall of the top of the linkage rod (9) through a support frame (11).
3. The tunnel type oven for producing silica gel, which is not easy to be stained with ash and is characterized in that the drying mechanism comprises a hot air blower (17) and two edge baffles (20), the two edge baffles (20) are fixed on the inner side wall of the main body (1) through screws, a circulation cavity (19) is arranged between the two edge baffles (20), the inner walls on two sides of the circulation cavity (19) are of arc-shaped structures, and the hot air blower (17) is fixed on the inner wall on one side of the circulation cavity (19) through screws.
4. The tunnel type oven for producing silica gel not prone to ash staining as claimed in claim 3, wherein uniformly distributed elastic hollow columns (22) are bonded on the inner wall of one side of the circulating cavity (19), uniformly distributed air holes (21) are formed in one ends of the elastic hollow columns (22), and the positions of the elastic hollow columns (22) are matched with the linkage rods (9).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110084738.0A CN112710145B (en) | 2021-01-22 | 2021-01-22 | Silica gel not easy to be stained with ash and tunnel type drying oven for production thereof |
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| CN202110084738.0A CN112710145B (en) | 2021-01-22 | 2021-01-22 | Silica gel not easy to be stained with ash and tunnel type drying oven for production thereof |
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| CN112710145B true CN112710145B (en) | 2022-07-08 |
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| CN115355689B (en) * | 2022-08-01 | 2024-02-02 | 山东瑞道地毯有限公司 | High-efficient drying device of carpet processing |
| CN117268085B (en) * | 2023-11-21 | 2024-01-23 | 山东瑞柯林环保科技有限公司 | Forming and drying device for denitration catalyst preparation |
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| CN206847298U (en) * | 2017-04-17 | 2018-01-05 | 宁波东方嘉迅加热设备有限公司 | A kind of horizontal drying machine |
| CN108571854A (en) * | 2018-04-09 | 2018-09-25 | 中铁第四勘察设计院集团有限公司 | A kind of the freezer combination of channels door system and disengaging freezer method of self-closing |
| CN212205542U (en) * | 2020-05-28 | 2020-12-22 | 江西极尊堂中药制药有限公司 | Medicinal material drying device of chinese-medicinal material processing usefulness |
| CN112107618A (en) * | 2020-09-22 | 2020-12-22 | 天马（安徽）国药科技股份有限公司 | Salvia miltiorrhiza powder preparation process and drying device thereof |
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Denomination of invention: A type of silica gel that is not easily stained with dust and its production tunnel oven Effective date of registration: 20230724 Granted publication date: 20220708 Pledgee: Lu'an rural commercial bank Limited by Share Ltd. Pledgor: Anhui dianhao trademark Technology Co.,Ltd. Registration number: Y2023980049308 |