CN217367588U - Sodium carboxymethylcellulose extraction drying device - Google Patents

Abstract

The utility model discloses a sodium carboxymethylcellulose extraction drying device, belong to sodium carboxymethylcellulose processing technology field, can be attached to a large amount of powder on the filter screen to having aimed at air exhaust equipment under the operation of continuing, influence the outside discharge rate of vapor, and the filter screen is at the installation of exhaust pipe, the problem of very difficult manual disassembly and assembly, including drying box, gas collecting channel, ventilation pipe and the fan that one end is open, the below of carriage is provided with the powder and clears away the part, the carriage inboard can be dismantled and be provided with the filter screen, the powder clears away the part and includes the movable rod, cuts to pieces and rubs board and backup pad, the output shaft of motor and one of them one end of movable rod rigid coupling; the utility model discloses a setting of part is clear away to the powder, and wherein the movable rod in the part is clear away to the powder can strike off the powder on filter screen surface effectively at the in-process of the inside vapor of fan suction stoving incasement portion, reduces the coverage area of powder on filter screen surface, guarantees the flow rate when vapor passes through the filter screen.

Description

Sodium carboxymethylcellulose extraction drying device

Technical Field

The utility model belongs to the technical field of the sodium carboxymethylcellulose processing, concretely relates to sodium carboxymethylcellulose extracts drying device.

Background

Sodium carboxymethyl cellulose is the carboxymethylated derivative of cellulose, the most important ionic cellulose gum, and is usually an anionic high molecular compound prepared by reacting natural cellulose with caustic alkali and monochloroacetic acid, the molecular weight of the sodium carboxymethyl cellulose is thousands to millions, CMC-Na is white fibrous or granular powder, is odorless, tasteless and hygroscopic, and can be easily dispersed in water to form a transparent colloidal solution.

After the production of sodium carboxymethylcellulose colloidal solution among the prior art is accomplished, need often to dry with the help of independent drying device in order to obtain the sodium carboxymethylcellulose of powder, and generally can be equipped with alone on the current drying device who is used for sodium carboxymethylcellulose solution and use exhaust equipment, can outwards discharge the vapor that produces among the stoving operation process, in order to avoid vapor to push away in a large amount in the stoving case, form certain drop of water easily, influence the aridity of preparing the powder, and generally can install the filter screen in the exhaust pipe that is used for exhaust equipment installation, be convenient for in exhaust equipment continuous action process, block the powder, in order to avoid the powder that the stoving formed to be inhaled by exhaust equipment, and get into in the exhaust equipment, cause the influence to exhaust equipment's life, but still there are following not enough in the in-service use:

firstly, when the air exhaust equipment is continuously operated, a large amount of powder is attached to the filter screen in the air exhaust pipe, the surface of the filter screen is covered by a large area of the powder, and the outward discharge rate of water vapor is seriously affected.

In the prior art, the filter screen is installed in the exhaust pipe generally by directly using a plurality of bolts to fix the filter screen in the exhaust pipe, although the stability is good, in the actual dismounting process, personnel are required to manually extend into the exhaust pipe to twist the bolts, the space of the general exhaust pipe is narrow, manual operation is not convenient, the manual operation range is limited, and the actual dismounting efficiency can still be reduced by manually twisting one by one due to the use of a large number of bolts.

Therefore, need a sodium carboxymethylcellulose extraction drying device, the exhaust equipment who solves to exist among the prior art can be attached to in a large number on the filter screen under the operation continuously has the powder, covers filter screen surface large tracts of land, influences the outside discharge rate of vapor to the filter screen is at the installation of exhaust pipe, the very artifical dismouting of not being convenient for problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a sodium carboxymethylcellulose extracts drying device to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a sodium carboxymethylcellulose extraction drying device comprises a drying box with an open end, a gas collecting hood detachably arranged at the open end of the drying box, a vent pipe communicated and fixed to the top of the gas collecting hood and a fan arranged in the inner cavity of the vent pipe, wherein a U-shaped supporting frame is horizontally fixed in the middle of the inner cavity of the vent pipe, the fan is positioned above the supporting frame, a powder removing component is arranged below the supporting frame, and a filter screen is detachably arranged on the inner side of the supporting frame;

powder clearing part including rotate set up in movable rod, a plurality of between the inner wall of ventilation pipe both sides are inside for the cavity encircle set up in scrape and rub the board and slide on the movable rod roller body set up in scrape and scrape the backup pad in rubbing the board inner chamber, the one end of backup pad is worn out scrape and rub the board and with the roller body looks rigid coupling of movable rod, the other end of backup pad with scrape and rub and be fixed with a plurality of pressure spring between the inner wall of board top, one of them scrape and rub the board with the bottom surface of filter screen contacts, be fixed with the motor on the outer wall of ventilation pipe, the output shaft of motor with one of them end rigid coupling of movable rod.

What need explain in the scheme is, the uncovered department level of carriage be provided with the mounting panel that the filter screen side was fixed mutually, and the mounting panel with the uncovered end laminating of carriage, the equal vertical groove of wearing of having seted up in both ends of mounting panel, wear to be provided with in the inslot with the carriage opening end rotates the continuous regulation pole, wear the groove outer level be provided with adjust the locking plate of the terminal looks rigid coupling of pole, and the locking plate with the surface of mounting panel closely laminates, wear the groove with the locking plate size is equivalent.

It should be further noted that, the two opposite sides of the filter screen are horizontally and fixedly connected with support bars, and the inner side wall of the support frame is provided with slots matched with the support bars.

It should be further noted that an access slot corresponding to the mounting plate is horizontally formed in the outer wall of the ventilation pipe, a sealing plate is arranged outside an opening of the access slot, which is far away from the mounting plate, one end of the sealing plate is hinged to the outer wall of the ventilation pipe, a locking screw rod is threaded at the other end of the sealing plate, and a threaded hole matched with the locking screw rod is formed in the outer wall of the ventilation pipe.

As a preferred embodiment, a plurality of guide grooves are formed in the surface of the supporting plate, and limiting blocks fixedly connected with the bottoms of the inner side walls of the scraping and rubbing plates are slidably connected in the guide grooves.

As a preferred embodiment, one end of the movable rod, far away from the scraping plate, is in a triangular cone shape, and a rubber layer is glued on the outer wall of the end part of the triangular cone shape of the scraping plate.

As a preferred embodiment, a lifting rod is fixedly connected to the middle of one side, away from the filter screen, of the mounting plate, and the lifting rod is located in the taking groove.

Compared with the prior art, the utility model provides a pair of sodium carboxymethylcellulose extracts drying device includes following beneficial effect at least:

(1) through the arrangement of the powder removing part, the movable rod in the powder removing part can drive the supporting plate and the scraping plate to integrally rotate in real time in the process that the fan sucks water vapor in the drying box, so that the scraping plate can effectively scrape the surface of the filter screen to scrape the powder on the surface of the filter screen, the coverage area of the powder on the surface of the filter screen is reduced, and the flow rate of the water vapor passing through the filter screen is ensured.

(2) Through the setting of locking board, regulation pole and wear the groove, can make things convenient for the manual work to implement the dismantlement of filter screen in the ventilation pipe outside, guarantee operating space promptly, replaced traditional bolt fastening's mounting means again, only need simply adjust the position relation between locking board and the wear groove, make things convenient for the dismouting of filter screen, improve the actual dismouting efficiency of filter screen effectively.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of a partial structure of the present invention;

fig. 3 is a schematic view of the internal structure of the ventilation pipe of the present invention;

fig. 4 is a schematic view of the internal structure of the rubbing plate of the utility model;

FIG. 5 is a schematic view of the separated internal structure of the filter screen and the support frame of the present invention;

fig. 6 is a schematic view of the internal structure at a in fig. 5 according to the present invention.

In the figure: 1. a drying box; 2. a gas-collecting channel; 3. a vent pipe; 4. a fan; 5. a support frame; 6. filtering with a screen; 7. a movable rod; 8. a support plate; 9. a rubbing plate; 10. a limiting block; 11. a compression spring; 12. a motor; 13. mounting a plate; 14. lifting a pull rod; 15. adjusting a rod; 16. a locking plate; 17. penetrating a groove; 18. a supporting strip; 19. taking a groove; 20. a sealing plate; 21. and locking the screw rod.

Detailed Description

The present invention will be further described with reference to the following examples.

In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the following will combine the drawings of the embodiments of the present invention to clearly and completely describe the technical solution of the embodiments of the present invention, and obviously, the described embodiments are a part of the embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative labor are within the scope of the protection of the present invention based on the described embodiments of the present invention.

The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention. The condition in the embodiment can be further adjusted according to concrete condition the utility model discloses a it is right under the design prerequisite the utility model discloses a simple improvement of method all belongs to the utility model discloses the scope of claiming.

Referring to fig. 1-6, the utility model provides a sodium carboxymethylcellulose extraction drying device, which comprises a drying box 1 with an open end, a gas-collecting hood 2 detachably arranged at the open end of the drying box 1 through bolts, a vent pipe 3 communicated and fixed at the top of the gas-collecting hood 2, and a fan 4 arranged in the inner cavity of the vent pipe 3, wherein a U-shaped support frame 5 is horizontally fixed at the middle part in the inner cavity of the vent pipe 3, the fan 4 is positioned above the support frame 5, a powder cleaning component is arranged below the support frame 5, a filter screen 6 is detachably arranged at the inner side of the support frame 5, the powder cleaning component comprises a movable rod 7 rotatably arranged between the inner walls at two sides of the vent pipe 3, a plurality of rubbing plates 9 with inner cavities arranged on the roller body of the movable rod 7 in a surrounding manner, and a support plate 8 arranged in the inner cavity of the rubbing plates 9 in a sliding manner, one end of the support plate 8 penetrates through the rubbing plates 9 and is fixedly connected with the roller body of the movable rod 7, a plurality of compression springs 11 are fixed between the other end of the supporting plate 8 and the inner wall of the top end of the scraping plate 9, one scraping plate 9 is in contact with the bottom surface of the filter screen 6, a motor 12 is fixed on the outer wall of the ventilation pipe 3, and an output shaft of the motor 12 is fixedly connected with one end of the movable rod 7.

Through the arrangement of the powder cleaning component, the movable rod 7 in the powder cleaning component can drive the supporting plate 8 and the scraping plate 9 to integrally rotate in real time in the process of sucking the water vapor in the drying box 1 by the fan 4, so that the scraping plate 9 can effectively scrape the surface of the filter screen 6, the powder on the surface of the filter screen 6 is scraped, the coverage area of the powder on the surface of the filter screen 6 is reduced, the flow rate of the water vapor passing through the filter screen 6 is ensured, through the compression spring 11, when the scraping plate 9 rotates to a position abutting against the filter screen 6, the scraping plate 9 can be passively pressed to slide downwards on the plate body of the supporting plate 8 and compress the compression spring 11, the contact effect of the scraping plate 9 and the surface of the filter screen 6 can be increased when the scraping plate 9 contacts with the surface of the filter screen 6 by utilizing the resilience force of the compression spring 11, the rubbing force of the scraping plate 9 on the powder covered on the surface of the filter screen 6 is improved, wherein the drying box 1 is known from the file in the prior art of CN211987125U, since the drying box 1 of the latest prior art is a product with self-heating function.

Further as shown in fig. 3 and fig. 5, it is worth concretely explaining that an opening of the supporting frame 5 is horizontally provided with a mounting plate 13 fixed with a side edge of the filter screen 6, the mounting plate 13 is attached to an open end of the supporting frame 5, both ends of the mounting plate 13 are vertically provided with through grooves 17, an adjusting rod 15 rotatably connected with the open end of the supporting frame 5 is arranged in the through groove 17, a locking plate 16 fixedly connected with a tail end of the adjusting rod 15 is horizontally arranged outside the through groove 17, the locking plate 16 is closely attached to a surface of the mounting plate 13, and the through groove 17 is equivalent to the locking plate 16 in size.

Through the setting of locking plate 16, regulation pole 15 and wear groove 17, only need simply twist reverse locking plate 16, adjust locking plate 16 to the vertical position that accords with wearing groove 17, can directly spur mounting panel 13, remove filter screen 6 from the carriage 5 inboard, make things convenient for the dismantlement of filter screen 6.

As further shown in fig. 5 and 6, it is worth specifically describing that the two opposite side edges of the filter screen 6 are horizontally and fixedly connected with supporting bars 18, and the inner side wall of the supporting frame 5 is provided with slots matched with the supporting bars 18.

Through the setting of support bar 18 and slot, filter screen 6 is when 5 inboards in fact, and support bar 18 cooperatees with the slot, can be to the real-time supplementary supporting effect of filter screen 6, guarantees filter screen 6 at the inboard steadiness of support frame 5 to when filter screen 6 to 5 inboard male in-process of support frame, can aim at support bar 18 in advance and insert the slot, support bar 18 equally can cooperate with the slot, inject filter screen 6 and insert the inboard movable track of support frame 5, guarantee the stationarity.

Further as shown in fig. 2 and fig. 3, it is worth specifically explaining that an taking groove 19 corresponding to the mounting plate 13 is horizontally formed in the outer wall of the ventilation pipe 3, a sealing plate 20 is arranged outside an opening of the taking groove 19 away from the mounting plate 13, one end of the sealing plate 20 is hinged to the outer wall of the ventilation pipe 3, a locking screw 21 is threaded at the other end of the sealing plate 20, and a threaded hole matched with the locking screw 21 is formed in the outer wall of the ventilation pipe 3.

Through the setting of groove 19 and the sealing plate 20 of taking, the personnel only need pull sealing plate 20, will take groove 19 inside open, and the accessible space is guaranteed in the outside dismantlement of filter screen 6 of the manual work of implementing of ventilation pipe 3.

The scheme has the following working processes: when the drying box is used, the bolt at the joint of the gas collecting hood 2 and the drying box 1 can be loosened firstly, so that the gas collecting hood 2 is separated from the drying box 1, namely a certain amount of sodium carboxymethylcellulose solution is poured into the drying box 1 conveniently, after the pouring operation of the solution is finished, the gas collecting hood 2 is fixed on the opening of the drying box 1 by using the bolt again, the drying box 1 is opened, namely the drying box 1 can dry the sodium carboxymethylcellulose colloidal solution in the drying box, the fan 4 can be synchronously opened manually in the drying process of the sodium carboxymethylcellulose colloidal solution, namely the drying box 1 can continuously suck and discharge water vapor generated by processing the sodium carboxymethylcellulose colloidal solution, the pushing and accumulation of the water vapor in the drying box 1 is reduced, in addition, the motor 12 can be synchronously opened and operated in the continuous operation process of the fan 4, so that the movable rod 7 drives the plurality of support plates 8 on the roller body to do autorotation gradually, in the process of alternate rotation, the supporting plates 8 can synchronously drive the scraping and rubbing plates 9 on the plate bodies to operate in the same direction, when the plates 9 to be scraped rotate to the position where the plates are abutted against the filter screen 6, namely the scraping and rubbing plates 9 can be passively squeezed to slide downwards on the plate bodies of the supporting plates 8, so that the moving process of the movable rod 7 is not hindered, the compression spring 11 can be compressed in real time in the sliding process, the contact effect of the scraping and rubbing plates 9 and the surface of the filter screen 6 can be increased when the scraping and rubbing plates 9 are in contact with the surface of the filter screen 6 by utilizing the resilience force of the compression spring 11, the scraping and rubbing force of the scraping and rubbing plates 9 on the powder covered on the surface of the filter screen 6 is improved, and the covering area of the powder on the surface of the filter screen 6 is reduced;

if the filter screen 6 is worn after long-term use and needs maintenance and replacement, the locking screw 21 is firstly screwed to remove the locking screw 21 from the threaded hole, the locking effect on the sealing plate 20 is relieved, the sealing plate 20 is rotated to open the inside of the taking groove 19, a worker can immediately twist the locking plate 16 to rotate the adjusting rod 15 on the inner side of the through groove 17, the locking plate 16 is adjusted to be in a vertical state, the mounting plate 13 is directly pulled to remove the filter screen 6 from the inner side of the support frame 5, therefore, manual disassembly of the filter screen 6 outside the ventilation pipe 3 is facilitated, the operable space is ensured, the traditional bolt fixing installation mode is replaced, only the position relation between the locking plate 16 and the through groove 17 needs to be simply adjusted, the filter screen 6 is conveniently disassembled, and the actual disassembly and assembly efficiency of the filter screen 6 is effectively improved.

According to the working process, the following steps are known: through the arrangement of the movable rod 7, the supporting plate 8 and the scraping plate 9, the surface of the filter screen 6 can be effectively scraped, powder on the surface of the filter screen 6 can be scraped, the coverage area of the powder on the surface of the filter screen 6 can be reduced, and through the arrangement of the compression spring 11, when the scraping plate 9 is contacted with the surface of the filter screen 6, the contact effect of the scraping plate 9 and the surface of the filter screen 6 is increased, the scraping force of the scraping plate 9 on the powder covered on the surface of the filter screen 6 is improved, through the arrangement of the locking plate 16, the adjusting rod 15 and the through groove 17, the disassembly of the filter screen 6 is convenient, through the arrangement of the supporting bars 18 and the slots, when the filter screen 6 is actually arranged in the inner side of the supporting frame 5, can assist the supporting effect of the filter screen 6 in real time, ensure the stability of the filter screen 6 at the inner side of the supporting frame 5, by arranging the taking groove 19 and the sealing plate 20, the filter screen 6 can be manually detached from the outside of the ventilation pipe 3, and an operable space is ensured.

Further, as shown in fig. 4, it is worth specifically explaining that a plurality of guide grooves are formed in the surface of the supporting plate 8, and the guide grooves are slidably connected with a limiting block 10 fixedly connected with the bottom of the inner side wall of the scraping plate 9.

Through the arrangement of the limiting block 10 and the guide groove, when the scraping plate 9 abuts against the filter screen 6 and is extruded to slide down on the plate body of the supporting plate 8, the limiting block 10 slides in the guide, so that the moving track of the scraping plate 9 can be limited.

Further, as shown in fig. 4, it is worth specifically explaining that one end of the scraping plate 9, which is far away from the movable rod 7, is in a triangular cone shape, and a rubber layer is glued on an outer wall of the end of the scraping plate 9 in the triangular cone shape.

Due to the fact that the end, far away from the movable rod 7, of the scraping plate 9 is in the triangular cone shape, when the scraping plate 9 is in contact with the filter screen 6, the contact area between the scraping plate 9 and the filter screen 6 is reduced, the scraping effect of the scraping plate 9 on powder covered on the surface of the filter screen 6 is guaranteed, and due to the fact that the scraping plate 9 is arranged on the rubber layer on the outer wall of the end portion, in the triangular cone shape, of the scraping plate 9, abrasion of the scraping plate 9 is reduced when the scraping plate 9 is in contact with the filter screen 6.

As further shown in fig. 5, it should be noted that a lifting rod 14 is vertically fixed to a middle portion of the mounting plate 13, which is away from the filter screen 6, and the lifting rod 14 is located in the taking groove 19.

Through the setting of lifting rod 14, can make things convenient for personnel to draw the operation in real time to mounting panel 13 and filter screen 6.

To sum up: through the arrangement of the movable rod 7, the supporting plate 8 and the scraping plate 9, the surface of the filter screen 6 can be effectively scraped, powder on the surface of the filter screen 6 can be scraped, the coverage area of the powder on the surface of the filter screen 6 is reduced, through the arrangement of the compression spring 11, the contact effect of the scraping plate 9 and the surface of the filter screen 6 can be increased when the scraping plate 9 is in contact with the surface of the filter screen 6, the scraping force of the scraping plate 9 on the powder covered on the surface of the filter screen 6 is improved, through the arrangement of the locking plate 16, the adjusting rod 15 and the through groove 17, the disassembly of the filter screen 6 is facilitated, through the arrangement of the supporting bar 18 and the slot, when the filter screen 6 is actually arranged in the inner side of the supporting frame 5, the real-time auxiliary supporting effect on the filter screen 6 can be realized, the stability of the filter screen 6 on the inner side of the supporting frame 5 can be ensured, through the arrangement of the taking slot 19 and the sealing plate 20, the disassembly of the filter screen 6 outside the ventilation pipe 3 can be carried out manually, and the operable space can be ensured, the moving track of the scraping and rubbing plate 9 can be limited by the arrangement of the limiting block 10 and the guide groove, the contact area between the scraping and rubbing plate 9 and the filter screen 6 can be reduced by the arrangement that one end of the scraping and rubbing plate 9, which is far away from the movable rod 7, is in the shape of a triangular cone, the scraping and rubbing effect of the scraping and rubbing plate 9 on powder covered on the surface of the filter screen 6 is ensured, the abrasion of the scraping and rubbing plate 9 can be reduced by the arrangement of the rubber layer on the outer wall of the triangular cone-shaped end part of the scraping and rubbing plate 9, and the installation plate 13 and the filter screen 6 can be conveniently pulled and operated by personnel in real time by the arrangement of the lifting rod 14.

The fan 4 and the motor 12 are commercially available, and the fan 4 and the motor 12 are provided with a power supply, which belongs to the mature technology in the field and is fully disclosed, so repeated description is omitted in the specification.

Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the art, and the use of the term "including" or "comprising" in the present application shall mean that the element or item preceding the term covers the element or item listed after the term and its equivalents, but does not exclude other elements or items, and the term "connected" or "connected" is not limited to physical or mechanical connections, and may include electrical connections, whether direct or indirect, "upper", "lower", "left", "right", etc. merely indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may be changed accordingly.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. A sodium carboxymethylcellulose extraction and drying device comprises a drying box (1) with an open end, a gas collecting hood (2) detachably arranged at the open end of the drying box (1), a ventilation pipe (3) fixedly communicated with the top of the gas collecting hood (2), and a fan (4) arranged in the inner cavity of the ventilation pipe (3), and is characterized in that a U-shaped support frame (5) is horizontally fixed in the middle of the inner cavity of the ventilation pipe (3), the fan (4) is positioned above the support frame (5), a powder cleaning component is arranged below the support frame (5), and a filter screen (6) is detachably arranged on the inner side of the support frame (5);

powder clearing part including rotate set up in movable rod (7), a plurality of between ventilation pipe (3) both sides inner wall encircle for the cavity set up in scrape rubbing board (9) and slide on movable rod (7) the roller body set up in backup pad (8) in scraping rubbing board (9) inner chamber, wear out the one end of backup pad (8) cut rub board (9) and with the roller body looks rigid coupling of movable rod (7), the other end of backup pad (8) with cut and be fixed with a plurality of pressure spring (11) between rubbing board (9) top inner wall, one of them cut rub board (9) with the bottom surface of filter screen (6) contacts, be fixed with motor (12) on the outer wall of ventilation pipe (3), the output shaft of motor (12) with one of them end rigid coupling of movable rod (7).

2. The sodium carboxymethylcellulose extracting and drying device according to claim 1, which is characterized in that: the uncovered department level of carriage (5) be provided with mounting panel (13) that filter screen (6) side was fixed mutually, and mounting panel (13) with the uncovered end laminating of carriage (5), the equal vertical logical groove (17) of having seted up in both ends of mounting panel (13), be provided with in logical groove (17) with carriage (5) opening end rotates regulation pole (15) that link to each other, logical groove (17) outer level be provided with adjust the locking plate (16) of pole (15) terminal looks rigid coupling, and locking plate (16) with the surface of mounting panel (13) closely laminates, logical groove (17) with locking plate (16) size is equivalent.

3. The sodium carboxymethylcellulose extracting and drying device according to claim 2, characterized in that: the equal level rigid coupling in two relative sides of filter screen (6) has support bar (18), seted up on the inside wall of carriage (5) with support bar (18) matched with slot.

4. The sodium carboxymethylcellulose extracting and drying device according to claim 3, characterized in that: the outer wall of ventilation pipe (3) go up the level seted up with the corresponding groove of taking (19) of mounting panel (13), the groove of taking (19) are kept away from the uncovered external of mounting panel (13) is provided with closing plate (20), the one end of closing plate (20) with the outer wall of ventilation pipe (3) is articulated to be linked to each other, locking screw (21) are worn to be equipped with by the other end screw thread of closing plate (20), set up on the outer wall of ventilation pipe (3) with locking screw (21) matched with screw hole.

5. The sodium carboxymethylcellulose extracting and drying device according to claim 1, which is characterized in that: a plurality of guide grooves are formed in the surface of the supporting plate (8), and limiting blocks (10) fixedly connected with the bottoms of the inner side walls of the scraping and rubbing plates (9) are connected in the guide grooves in a sliding mode.

6. The sodium carboxymethylcellulose extracting and drying device according to claim 1, which is characterized in that: cut and rub board (9) and keep away from the one end of movable rod (7) is the triangular cone form, and cut and rub board (9) and glue on the outer wall that is triangular cone form tip and have the rubber layer.

7. The sodium carboxymethylcellulose extracting and drying device according to claim 4, characterized in that: the mounting plate (13) is far away from the middle part of one side of the filter screen (6) is fixedly connected with a lifting rod (14) in a perpendicular mode, and the lifting rod (14) is located in the taking groove (19).

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