CN112952288A - Method and device for manufacturing separator for improving performance of AGM separator - Google Patents
Method and device for manufacturing separator for improving performance of AGM separator Download PDFInfo
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- CN112952288A CN112952288A CN202110336193.8A CN202110336193A CN112952288A CN 112952288 A CN112952288 A CN 112952288A CN 202110336193 A CN202110336193 A CN 202110336193A CN 112952288 A CN112952288 A CN 112952288A
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- temperature drying
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B15/00—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form
- F26B15/10—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions
- F26B15/12—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions the lines being all horizontal or slightly inclined
- F26B15/14—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions the lines being all horizontal or slightly inclined the objects or batches of materials being carried by trays or racks or receptacles, which may be connected to endless chains or belts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/06—Chambers, containers, or receptacles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/06—Chambers, containers, or receptacles
- F26B25/14—Chambers, containers, receptacles of simple construction
- F26B25/18—Chambers, containers, receptacles of simple construction mainly open, e.g. dish, tray, pan, rack
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/22—Controlling the drying process in dependence on liquid content of solid materials or objects
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B3/00—Drying solid materials or objects by processes involving the application of heat
- F26B3/02—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air
Abstract
The invention discloses a method and a device for manufacturing a separator for improving the performance of an AGM separator, and relates to the technical field of AGM separator processing. Comprises Step1, weighing various raw materials for manufacturing AGM separator, and mixing to prepare mixed slurry; step2, carrying out negative pressure suction filtration and dehydration on the mixed slurry to obtain a formed wet partition plate; step3, cutting the obtained wet partition board according to a certain length and width to form a semi-finished partition board; and Step4, putting the obtained semi-finished partition board on a gradient drying device for pre-drying, high-temperature drying and low-temperature drying in sequence to obtain the finished partition board with the water content of 0.1-0.35%. The invention carries out drying in a stage drying mode, solves the problems of incomplete and uneven drying in the prior art, and improves the drying effect of the partition board.
Description
Technical Field
The invention belongs to the technical field of AGM separator processing, and particularly relates to a separator manufacturing method and device for improving the performance of an AGM separator.
Background
The accumulator separator is a porous insulating material, and is placed between the positive and negative plates of the accumulator to separate them from each other, so as to play the role of insulation and avoid short circuit of the accumulator. And meanwhile, ions participating in chemical reaction are allowed to pass in the charging and discharging processes of the storage battery, and for the sealed maintenance-free battery, oxygen separated out from the positive electrode is ensured to reach the negative electrode through the partition plate, so that oxygen absorption is completed. At present, the traditional separators commonly used in China comprise AGM separators, PVC separators, PP separators and the like, wherein the AGM separators are made of novel materials with excellent mechanical, physical and chemical properties. The separator, which is another important component of a lead acid battery in addition to the positive and negative plates, has a significant effect on the performance of the lead acid battery, particularly a valve regulated lead acid battery (VRLA), and is therefore also referred to as the third electrode of the VRLA battery. Since about 1970, AGM separators have been widely used for sealing lead-acid batteries and have achieved good application results, and have played a very important role in VRLA batteries.
The existing storage battery separator is dried in a disposable drying mode in the processing process, the water content obtained by detection is possibly lower than the actual water content due to the limitation of detection, so that the drying is incomplete and uneven, and the service performance and the service life of the storage battery separator are influenced.
Disclosure of Invention
The invention aims to provide a method and a device for manufacturing a separator, which are used for improving the performance of an AGM separator.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a method for manufacturing a separator for improving the performance of an AGM separator, which comprises the following steps:
step1, weighing various raw materials for manufacturing the AGM separator, and mixing to prepare mixed slurry;
step2, carrying out negative pressure suction filtration and dehydration on the mixed slurry to obtain a formed wet partition plate;
step3, cutting the obtained wet partition board according to a certain length and width to form a semi-finished partition board;
and Step4, putting the obtained semi-finished partition board on a gradient drying device for pre-drying, high-temperature drying and low-temperature drying in sequence to obtain the finished partition board with the water content of 0.1-0.35%.
Further, the Step1 also comprises the steps of adjusting the mass concentration of the mixed slurry to be 0.15-0.6% by using the existing water, and then adjusting the pH value to be 2.0-4.0 by using sulfuric acid with the density of 1.1-1.84 g/m 3.
Further, the AGM separator contains 70-80 parts of medium-alkali glass fiber cotton, 15-20 parts of high-alkali glass fiber, 5-10 parts of polyester bi-component chopped fiber, 0.5-2 parts of montmorillonite and 1-3 parts of fused quartz sand.
A gradient drying device comprises two parallel rails, a rail trolley capable of advancing along the length direction of the rails is arranged on the two rails in a matched mode, and a drying rack capable of advancing along the length direction of the rails is connected to the tail end of the rail trolley; the bottom side surface of the track is connected with a support column; a pre-drying bin, a high-temperature drying bin and a low-temperature drying bin which are respectively used for pre-drying, high-temperature drying and low-temperature drying are sequentially arranged along the length direction of the track; and the track penetrates through the pre-drying bin, the high-temperature drying bin and the low-temperature drying bin.
Furthermore, the structure of the pre-drying bin, the structure of the high-temperature drying bin and the structure of the low-temperature drying bin are the same; the pre-drying bin comprises a bottom plate, a U-shaped cover is arranged on the bottom plate, the upper surface of the bottom plate is connected with a track through a supporting block, and the lower surface of the bottom plate is fixed on the ground through supporting legs; two opening ends of the U-shaped cover are provided with sealing doors; a plurality of air inlets are uniformly distributed on one side wall of the U-shaped cover, and a plurality of air outlets and a humidity sensor are uniformly distributed on the other side wall of the U-shaped cover.
Furthermore, two ends of the U-shaped cover are provided with inverted U-shaped frames A, and the end parts of the U-shaped frames A are connected with the sealing door through an electric telescopic device A; the top and the bottom of one side surface of the sealing door close to the U-shaped cover are respectively provided with a sealing side plate A and a sealing side plate B; the U-shaped frame B is arranged on the bottom plate under the U-shaped frame A and is symmetrical to the U-shaped frame A, the electric telescopic device B is arranged on the U-shaped frame B, and a transition track is arranged at the end of the electric telescopic device B.
Further, still include the controller, the controller is connected electronic telescoping device A, electronic telescoping device B, humidity transducer and small rail car.
Further, the drying rack comprises a plurality of drying brackets which are stacked together; the drying bracket comprises a rectangular frame, four side edges of the rectangular frame are horizontally provided with a supporting rod, the upper surface of the supporting rod is provided with supporting columns, and the four supporting columns are distributed in a rectangular shape; four side edges of the rectangular frame are provided with supporting rods, and the lower side face of the rectangular frame is provided with a supporting sleeve which is matched with the supporting rods to be sleeved and positioned.
Furthermore, base blocks are respectively arranged on four corner sides of the upper surface of the rectangular frame, and an inner sleeve and an outer sleeve which are mutually sleeved are fixed on one side of each base block; a screw rod penetrates through the base block in a threaded manner, and the end part of the screw rod is rotatably connected to the outer sleeve and controls the outer sleeve to stretch along the length direction of the inner sleeve; the end part of the outer sleeve is connected with an L-shaped stop block, the bottom side surface of the L-shaped stop block is provided with a supporting bottom plate, the upper surface of the L-shaped stop block is connected with a clamping plate through at least two springs, a locking bolt penetrates through the clamping plate, and the upper surface of the L-shaped stop block is provided with a threaded blind hole connected with the locking bolt; the bottom side of the clamping plate is provided with at least two guide posts, and the upper surface of the L-shaped check block is provided with a guide blind hole matched with the guide posts.
Further, the telescopic direction of the outer sleeve and the inner sleeve is the same as or opposite to the diagonal line of one of the rectangular frames.
The invention has the following beneficial effects:
the invention carries out drying in a stage drying mode, solves the problems of incomplete and uneven drying in the prior art, and improves the drying effect of the partition plate, thereby integrally prolonging the service life of the partition plate; through humidity transducer, sealing door and small rail car's setting, realize placing the AGM baffle and carry out automatic drying behind the drying rack, reduce labour cost, raise the efficiency.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the structure of a gradient drying apparatus according to the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1 in accordance with the present invention;
FIG. 3 is a schematic view of the structure of the drying rack of the present invention;
FIG. 4 is a schematic view of a drying carriage according to the present invention;
FIG. 5 is a schematic front view of the structure of FIG. 4 according to the present invention;
FIG. 6 is an enlarged view of a portion of the invention shown at B in FIG. 5.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "opening," "upper," "lower," "thickness," "top," "middle," "length," "inner," "peripheral," and the like are used in an orientation or positional relationship that is merely for convenience in describing and simplifying the description, and do not indicate or imply that the referenced component or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present invention.
Referring to fig. 1-6, the present invention is a method for manufacturing a separator for improving the performance of an AGM separator, comprising the steps of:
step1, weighing various raw materials for manufacturing the AGM separator, and mixing to prepare mixed slurry;
step2, carrying out negative pressure suction filtration and dehydration on the mixed slurry to obtain a formed wet partition plate;
step3, cutting the obtained wet partition board according to a certain length and width to form a semi-finished partition board;
and Step4, putting the obtained semi-finished partition board on a gradient drying device for pre-drying, high-temperature drying and low-temperature drying in sequence to obtain the finished partition board with the water content of 0.1-0.35%.
In Step1, the mass concentration of the existing water is adjusted to 0.15-0.17%, and then the pH value is adjusted to 2.0-2.5 by sulfuric acid with the density of 1.1-1.24 g/m 3.
The addition of the montmorillonite improves the shock resistance, fatigue resistance, dimensional stability and gas barrier property of the AGM separator; the energy consumption of production is reduced by adding the fused quartz sand.
In Step4, hot air with the temperature of 80-100 ℃ is adopted for drying in the pre-drying stage until the water content of the semi-finished separator is 10-15%; hot air with the temperature of 180-190 ℃ is adopted for drying in the high-temperature drying stage until the water content of the semi-finished partition board is 1-3%, and then hot air with the temperature of 120-140 ℃ is adopted for drying in the low-temperature drying stage until the water content of the semi-finished partition board is 0.1-0.35%.
Meanwhile, the hot air discharged from the high-temperature drying stage can be subjected to temperature regulation and control and circulated to the low-temperature drying stage for use, the hot air discharged from the low-temperature drying stage is subjected to temperature regulation and control and circulated to the pre-drying stage, and the hot air discharged from the pre-drying stage is subjected to temperature regulation and control and circulated to the high-temperature drying stage.
A gradient drying device comprises two parallel rails 1, rail trolleys capable of advancing along the length direction of the rails 1 are arranged on the two rails 1 in a matching mode, and a drying rack 5 capable of advancing along the length direction of the rails 1 is connected to the tail end of each rail trolley; the bottom side surface of the track 1 is connected with a support column; a pre-drying bin 2, a high-temperature drying bin 3 and a low-temperature drying bin 4 which are respectively used for pre-drying, high-temperature drying and low-temperature drying are sequentially arranged along the length direction of the track 1; and the track 1 penetrates through the pre-drying bin 2, the high-temperature drying bin 3 and the low-temperature drying bin 4.
The structure of the pre-drying bin 2, the structure of the high-temperature drying bin 3 and the structure of the low-temperature drying bin 4 are the same; the pre-drying bin 2 comprises a bottom plate 21, a U-shaped cover 22 is arranged on the bottom plate 21, the upper surface of the bottom plate 21 is connected with the track 1 through a supporting block 211, and the lower surface of the bottom plate is fixed on the ground through supporting legs; two open ends of the U-shaped cover 22 are provided with sealing doors 25; a plurality of air inlets are uniformly distributed on one side wall of the U-shaped cover 22, and a plurality of air outlets and a humidity sensor are uniformly distributed on the other side wall of the U-shaped cover 22.
The two ends of the U-shaped cover are provided with inverted U-shaped frames A23, and the end part of the U-shaped frame A23 is connected with the sealing door 25 through an electric telescopic device A24; the top and the bottom of one side surface of the sealing door 25 close to the U-shaped cover 22 are respectively provided with a sealing side plate A251 and a sealing side plate B252; a U-shaped frame B26 which is symmetrical to the U-shaped frame A23 is arranged on the bottom plate 21 which is positioned right below the U-shaped frame A23, an electric telescopic device B27 is arranged on the U-shaped frame B26, and a transition track 28 is arranged at the end part of the electric telescopic device B27.
The device also comprises a controller, wherein the controller is connected with the electric telescopic device A24, the electric telescopic device B27, the humidity sensor and the rail trolley.
The drying rack 5 comprises a plurality of drying trays 50 stacked together; the drying bracket 50 comprises a rectangular frame 51, wherein four sides of the rectangular frame 51 are all horizontally provided with a support rod 52, the upper surface of the support rod 52 is provided with a support column 521, and the four support columns 521 are distributed in a rectangular shape; the surface sets up bracing piece 53, the downside is provided with and cup joints the support cover 531 of location with bracing piece 53 cooperation on four sides of rectangle frame 51.
The four pillars 521 which are distributed in a rectangular shape facilitate the partition board to be placed into the four pillars 521, and then the screw 543 is controlled to drive the four L-shaped stoppers 55 to move into the rectangular frame 51 until the supporting base plate 551 is located below the partition board, and the locking bolt 561 is rotated, so that the four corner sides of the partition board are fixed. Wherein the pillar 521 is a rubber pillar having elastic and elastic properties. In a state where the partition is placed on the rubber column, the end of the rubber column is slightly higher than the upper surface of the support base 551.
The telescoping direction of the outer sleeve 542 and the inner sleeve 541 is the same as or opposite to the diagonal of one of the rectangular frames 51.
The rail trolley is controlled to drive the drying rack 5 to move along the length direction of the rail 1, when the rail trolley is moved to one side of the pre-drying bin 2, the electric telescopic device A24 is controlled to retract, the electric telescopic device B27 is controlled to extend out, the rail trolley drives the drying rack 5 to enter the pre-drying bin 2 under the action of the transition rail 28, and then the electric telescopic device A24 is controlled to extend out, and the electric telescopic device B is controlled to retract. Enabling the sealing side plate A251 and the sealing side plate B252 to abut against the bottom plate 21 and the U-shaped cover 22 respectively, introducing hot air for drying, controlling the electric telescopic device A24 to retract and controlling the electric telescopic device B27 to extend out when the humidity sensor detects that the time value lasting for 10s is lower than 15%, and controlling the rail trolley to drive the drying rack 5 to move along the length direction of the rail 1 to move away from the pre-drying bin 2 and move to the high-temperature drying bin 3; when the humidity sensor in the high-temperature drying bin 3 detects that the time value lasting for 10s is lower than 3%, the high-temperature drying bin 3 is controlled to move into the low-temperature drying bin 4 after being dried according to the method, and when the humidity sensor in the low-temperature drying bin 4 detects that the time value lasting for 10s is lower than 0.35%, the low-temperature drying bin 4 is controlled to move out after being dried according to the method.
(1) The AGM separator contains 70 parts of medium-alkali glass fiber cotton, 15 parts of high-alkali glass fiber, 5 parts of polyester bi-component chopped fiber, 0.5 part of montmorillonite and 1 part of fused quartz sand.
(2) The AGM separator contains 80 parts of medium-alkali glass fiber cotton, 20 parts of high-alkali glass fiber, 10 parts of polyester bi-component chopped fiber, 2 parts of montmorillonite and 3 parts of fused quartz sand.
(3) The AGM separator contains 75 parts of medium-alkali glass fiber cotton, 17 parts of high-alkali glass fiber, 7 parts of polyester bi-component chopped fiber, 1 part of montmorillonite and 2 parts of fused quartz sand.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (10)
1. A method for manufacturing a separator for improving the performance of an AGM separator is characterized by comprising the following steps: the method comprises the following steps:
step1, weighing various raw materials for manufacturing the AGM separator, and mixing to prepare mixed slurry;
step2, carrying out negative pressure suction filtration and dehydration on the mixed slurry to obtain a formed wet partition plate;
step3, cutting the obtained wet partition board according to a certain length and width to form a semi-finished partition board;
and Step4, putting the obtained semi-finished partition board on a gradient drying device for pre-drying, high-temperature drying and low-temperature drying in sequence to obtain the finished partition board with the water content of 0.1-0.35%.
2. The method for manufacturing a separator according to claim 1, wherein the Step1 further comprises adjusting the mass concentration of the mixed slurry to 0.15-0.6% with water, and adjusting the pH to 2.0-4.0 with sulfuric acid having a density of 1.1-1.84 g/m 3.
3. The method and the device for manufacturing the AGM separator according to claim 1, wherein the AGM separator comprises 70-80 parts of medium alkali glass fiber cotton, 15-20 parts of high alkali glass fiber, 5-10 parts of polyester bicomponent chopped fiber, 0.5-2 parts of montmorillonite and 1-3 parts of fused quartz sand.
4. The gradient drying device for the method for manufacturing the partition board for improving the performance of the AGM partition board according to any one of the claims 1 to 3, wherein the gradient drying device comprises two rails (1) which are arranged in parallel, a rail trolley which can move along the length direction of the rail trolley is arranged on the two rails (1) in a matching way, and the tail end of the rail trolley is connected with a drying rack (5) which can move along the length direction of the rails (1);
the bottom side surface of the track (1) is connected with a supporting column;
a pre-drying bin (2), a high-temperature drying bin (3) and a low-temperature drying bin (4) which are respectively used for pre-drying, high-temperature drying and low-temperature drying are sequentially arranged along the length direction of the track (1);
and the track (1) penetrates through the pre-drying bin (2), the high-temperature drying bin (3) and the low-temperature drying bin (4).
5. A gradient drying device according to claim 4, characterized in that the pre-drying chamber (2), the high-temperature drying chamber (3) and the low-temperature drying chamber (4) have the same structure;
the pre-drying bin (2) comprises a bottom plate (21), a U-shaped cover (22) is arranged on the bottom plate (21), the upper surface of the bottom plate (21) is connected with the track (1) through a supporting block (211), and the lower surface of the bottom plate is fixed on the ground through supporting legs;
two open ends of the U-shaped cover (22) are provided with sealing doors (25);
a plurality of air inlets are uniformly distributed on one side wall of the U-shaped cover (22), and a plurality of air outlets and a humidity sensor are uniformly distributed on the other side wall of the U-shaped cover (22).
6. A gradient drying device according to claim 5, wherein the two ends of the U-shaped cover are provided with inverted U-shaped frames A (23), and the end parts of the U-shaped frames A (23) are connected with the sealing door (25) through an electric telescopic device A (24); the top and the bottom of one side surface of the sealing door (25) close to the U-shaped cover (22) are respectively provided with a sealing side plate A (251) and a sealing side plate B (252);
the U-shaped frame B (26) which is symmetrically arranged with the U-shaped frame A (23) is arranged on a bottom plate (21) under the U-shaped frame A (23), an electric telescopic device B (27) is arranged on the U-shaped frame B (26), and a transition track (28) is arranged at the end part of the electric telescopic device B (27).
7. A gradient drying apparatus according to claim 6, further comprising a controller, wherein the controller is connected to the electric telescopic apparatus A (24), the electric telescopic apparatus B (27), the humidity sensor and the rail car.
8. A gradient drying unit according to claim 4, characterized in that the drying rack (5) comprises several stacked drying carriages (50);
the drying bracket (50) comprises a rectangular frame (51), four side edges of the rectangular frame (51) are horizontally provided with a supporting rod (52), the upper surface of the supporting rod (52) is provided with a strut (521), and the four struts (521) are distributed in a rectangular shape;
the surface sets up bracing piece (53) on four sides of rectangle frame (51), downside are provided with and cup joint the support cover (531) of location with bracing piece (53) cooperation.
9. The gradient drying device according to claim 8, wherein base blocks (54) are respectively arranged on four corner sides of the upper surface of the rectangular frame (51), and an inner sleeve (541) and an outer sleeve (542) which are sleeved with each other are fixed on one side of each base block (54);
the base block (54) is also provided with a screw rod (543) in a threaded penetrating manner, the end part of the screw rod (543) is rotatably connected to the outer sleeve (542) and controls the outer sleeve (542) to stretch along the length direction of the inner sleeve (541);
the end part of the outer sleeve (542) is connected with an L-shaped block (55), the bottom side surface of the L-shaped block (55) is provided with a supporting bottom plate (551), the upper surface of the L-shaped block (55) is connected with a clamping plate (56) through at least two springs (562), the clamping plate (56) is also provided with a locking bolt (561) in a penetrating manner, and the upper surface of the L-shaped block (55) is provided with a threaded blind hole connected with the locking bolt (561); the bottom side of splint (56) is provided with two at least guide post (563), L type dog (55) upper surface is provided with the direction blind hole with guide post (563) complex.
10. A gradient drying apparatus according to claim 9, wherein the telescoping direction of the outer sleeve (542) and inner sleeve (541) is the same or opposite to the diagonal of one of said rectangular frames (51).
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| CN107879666A (en) * | 2017-10-12 | 2018-04-06 | 浙江畅通科技有限公司 | A kind of AGM dividing plates mineral wool |
| CN107887556A (en) * | 2017-10-12 | 2018-04-06 | 浙江畅通科技有限公司 | A kind of high-tensile AGM dividing plates |
| CN107887552A (en) * | 2017-10-12 | 2018-04-06 | 浙江畅通科技有限公司 | A kind of preparation method of modified AGM dividing plates |
| CN108832065A (en) * | 2018-06-28 | 2018-11-16 | 重庆纤维研究设计院股份有限公司 | A kind of high-performance AGM partition and preparation method thereof |
| CN109028917A (en) * | 2018-08-10 | 2018-12-18 | 南京林业大学 | A kind of AGM partition produces energy-saving method |
| CN211575841U (en) * | 2020-01-19 | 2020-09-25 | 安徽省天鸣农林科技综合开发有限公司 | Tray placing frame |
| CN112146411A (en) * | 2020-10-22 | 2020-12-29 | 合肥青鸾新能源科技有限公司 | Lithium cell battery polar plate production is with continuity intelligence drying system |
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