CN115384955A - Aerogel heat preservation mortar is with preventing condensing storage device - Google Patents

Aerogel heat preservation mortar is with preventing condensing storage device Download PDF

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Publication number
CN115384955A
CN115384955A CN202210803514.5A CN202210803514A CN115384955A CN 115384955 A CN115384955 A CN 115384955A CN 202210803514 A CN202210803514 A CN 202210803514A CN 115384955 A CN115384955 A CN 115384955A
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CN
China
Prior art keywords
storage device
spiral
multiunit
holding vessel
ring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202210803514.5A
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Chinese (zh)
Inventor
李智航
张玉佳
谭力文
王明利
邓芳
刘美君
殷月星宏
唐中军
张国栋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chongqing Vocational College Of Architecture And Technology
Original Assignee
Chongqing Vocational College Of Architecture And Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chongqing Vocational College Of Architecture And Technology filed Critical Chongqing Vocational College Of Architecture And Technology
Priority to CN202210803514.5A priority Critical patent/CN115384955A/en
Publication of CN115384955A publication Critical patent/CN115384955A/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D88/00—Large containers
    • B65D88/54—Large containers characterised by means facilitating filling or emptying
    • B65D88/64—Large containers characterised by means facilitating filling or emptying preventing bridge formation
    • B65D88/68—Large containers characterised by means facilitating filling or emptying preventing bridge formation using rotating devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D90/00—Component parts, details or accessories for large containers
    • B65D90/0093—Devices for cleaning the internal surfaces of the container and forming part of the container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G33/00—Screw or rotary spiral conveyors
    • B65G33/24—Details
    • B65G33/34—Applications of driving gear
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G65/00—Loading or unloading
    • B65G65/30—Methods or devices for filling or emptying bunkers, hoppers, tanks, or like containers, of interest apart from their use in particular chemical or physical processes or their application in particular machines, e.g. not covered by a single other subclass
    • B65G65/34—Emptying devices
    • B65G65/40—Devices for emptying otherwise than from the top
    • B65G65/46—Devices for emptying otherwise than from the top using screw conveyors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2590/00—Component parts, details or accessories for large containers
    • B65D2590/0091—Ladders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2590/00—Component parts, details or accessories for large containers
    • B65D2590/22—Safety features

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)

Abstract

The invention discloses an anti-condensation storage device for aerogel thermal insulation mortar, which comprises a storage tank, wherein a stirring rod is installed, the bottom end of the stirring rod extends into the space of the storage tank, a first spiral sleeve ring and a second spiral sleeve ring are installed on the outer surface of the stirring rod in a threaded embedded mode, the first spiral sleeve ring is located above the second spiral sleeve ring, a plurality of groups of uniformly arranged scraping rods are installed on the outer surface of the first spiral sleeve ring, a scraping ring is installed at one end of each group of scraping rods, inclined rods are installed at the bottoms of the scraping rods, and the bottoms of the inclined rods are attached to the outer surface of the second spiral sleeve ring. According to the invention, the whole body can move up and down in the storage tank, and can perform vertical twitching operation on mortar, so that the mortar is effectively prevented from being condensed, and the mortar adhered to the inner wall of the storage tank can be scraped.

Description

Aerogel heat preservation mortar is with preventing storage device that condenses
Technical Field
The invention relates to the technical field of storage devices, in particular to an anti-condensation storage device for aerogel thermal insulation mortar.
Background
Aerogel heat preservation mortar is done the aerogel granule in gypsum mortar or lime mortar, and coefficient of thermal conductivity can accomplish 0.028, and is still better than ordinary expanded polystyrene board heat preservation effect, because the mortar is stood still for a long time and is placed, the condition that condenses appears easily simultaneously, so need be equipped with corresponding rabbling mechanism in mortar storage device.
The existing storage device for aerogel thermal insulation mortar has the following defects:
the existing storage device for aerogel thermal insulation mortar is in practical application, when mortar is stored in the storage device for a long time, residues are easy to exist on the inner wall of the storage device, the residues are not cleaned in time, the quality of the next mortar storage is easy to influence, meanwhile, the mortar is kept stand for a long time, the coagulation condition is easy to appear, and the quality of the mortar is also influenced.
Disclosure of Invention
The invention aims to provide an anti-condensation storage device for aerogel thermal insulation mortar, which solves the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an aerogel heat preservation mortar is with preventing storage device that congeals, includes the holding vessel, first servo motor is installed to the centre at the top of holding vessel, the puddler is installed to first servo motor's output, and inside the bottom of puddler extended the space that gets into the holding vessel, first spiral lantern ring and second spiral lantern ring are installed through the screw gomphosis to the surface of puddler, and just first spiral lantern ring is located the top of second spiral lantern ring, the surface mounting of the first spiral lantern ring has the pole of scraping that the multiunit evenly arranged, the multiunit scrape the one end of pole and install scraping ring, multiunit scrape the bottom of pole and all install the tilting bar, and the bottom of tilting bar all laminates with the surface of second spiral lantern ring.
As preferred, the discharging pipe is installed to the bottom of holding vessel, the connecting pipe is installed through the flange in the bottom of discharging pipe, the ejection of compact machine is installed to the bottom of connecting pipe, the bearing frame is installed to the back wall of ejection of compact machine, second servo motor is installed in the front of ejection of compact machine, spiral feed rod is installed to second servo motor's output, and the tail end of spiral feed rod extends the inside that gets into the bearing frame, the ejection of compact mouth of pipe of arranging around two sets of is installed to the bottom of ejection of compact machine.
Preferably, the bottom of the stirring rod is sleeved with a fixer, two groups of symmetrically arranged fixing rods are mounted on the outer surface of the fixer, and one ends, far away from the fixer, of the fixing rods are attached to the inner wall of the storage tank.
Preferably, a plurality of groups of annular railings are installed at the top of the storage tank, a plurality of groups of annular railings are installed at the top of each annular railing, a first escalator and a second escalator are installed on one side of the surface of the storage tank, and the first escalator is located above the second escalator.
Preferably, a support column is installed at the bottom of the discharging machine, and a fixing column is installed at the bottom of the support column.
Preferably, the outer surface of the storage tank is provided with a support ring, the bottom of the support ring is provided with a plurality of groups of support frames which are uniformly distributed, and a plurality of groups of fixing frames are arranged at the bottom of the support frames.
Compared with the prior art, the invention has the beneficial effects that:
1. by operating the first servo motor, the output shaft of the first servo motor drives the stirring rod to rotate, and the first spiral sleeve ring and the second spiral sleeve ring of the stirring rod are in threaded embedded connection, so that the first spiral sleeve ring and the second spiral sleeve ring move up and down while the stirring rod rotates, then the outer surface of the first spiral sleeve ring is driven, the scraping rings assembled by a plurality of groups of scraping rods correspondingly move up and down along the inner wall of the storage tank, at the moment, the scraping rings can scrape and rub part of residues adhered to the inner wall of the storage tank downwards, residues can be prevented, and meanwhile, the whole formed by the scraping rings, a plurality of groups of inclined rods and a plurality of groups of scraping rods can perform up-and-down twitching operation on mortar, so that the coagulation condition of the whole can be effectively prevented;
2. mortar in the holding vessel flows to the discharging pipe from the inside, then carry to the inside of ejection of compact machine through the connecting pipe, through operation second servo motor, then its output shaft drives the rotation of spiral pay-off pole, because second servo motor can move towards clockwise and two sets of directions of anticlockwise rotation, if one side discharge gate of ejection of compact machine breaks down, can be through reversing the direction, make it rotate towards another direction, dredge the maintenance operation to one side discharge gate that breaks down again, then can effectively avoid influencing the efficiency of the storage device ejection of compact.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention;
FIG. 3 is a schematic view of the installation structure of the scraping rod, the scraping ring and the inclined rod of the present invention;
fig. 4 is a schematic structural diagram of the second servo motor, the screw feeding rod and the bearing seat of the present invention.
In the figure: 1. a storage tank; 2. a first servo motor; 3. a stirring rod; 4. a first helical collar; 5. a second helical collar; 6. a scraping rod; 7. scraping rings; 8. an inclined lever; 9. a holder; 10. a fixing rod; 11. A discharge pipe; 12. a discharging machine; 13. a second servo motor; 14. a bearing seat; 15. a discharge port; 16. A screw feed rod; 17. an annular rail; 18. an annular handrail; 19. a first escalator; 20. a second escalator; 21. a support ring; 22. a support frame; 23. a support column; 24. fixing the column; 25. a fixing frame.
Detailed Description
Referring to fig. 1-4, an embodiment of the present invention is shown:
the utility model provides an aerogel heat preservation mortar is with preventing storage device that condenses, including holding vessel 1, install first servo motor 2 in the middle of the top of holding vessel 1, puddler 3 is installed to first servo motor 2's output, and inside the bottom of puddler 3 extended the space that gets into holding vessel 1, first spiral lantern ring 4 and second spiral lantern ring 5 are installed through the screw gomphosis to the surface of puddler 3, and first spiral lantern ring 4 is located the top of second spiral lantern ring 5, the surface mounting of first spiral lantern ring 4 has the even pole 6 of scraping that arranges of multiunit, the one end of pole 6 is scraped to the multiunit is installed and is scraped ring 7, slope pole 8 is all installed to the bottom that the pole 6 was scraped to the multiunit, and the bottom of slope pole 8 all with the surface laminating of second spiral lantern ring 5.
The storage tank 1 has a large space and can store aerogel, the first servo motor 2 is operated, then the output shaft of the first servo motor drives the stirring rod 3 to rotate, the stirring rod 3, the first spiral sleeve ring 4 and the second spiral sleeve ring 5 are connected in a threaded embedded manner, so that the first spiral sleeve ring 4 and the second spiral sleeve ring 5 correspondingly move up and down along the outer surface of the stirring rod 3 while the stirring rod 3 rotates, then the outer surface of the first spiral sleeve ring 4 is driven, the scraping rings 7 assembled by the multiple groups of scraping rods 6 correspondingly move up and down along the inner wall of the storage tank 1, at the moment, the scraping rings 7 can scrape and rub part of residues adhered to the inner wall of the storage tank 1 downwards, and meanwhile, the whole volume formed by the scraping rings 7, the multiple groups of inclined rods 8 and the multiple groups of scraping rods 6 is large, so that the mortar can be pumped up and down while moving up and down in the storage tank 1 integrally, and the coagulation condition can be effectively prevented.
Discharging pipe 11 is installed to the bottom of holding vessel 1, the connecting pipe is installed through the flange in the bottom of discharging pipe 11, ejection of compact machine 12 is installed to the bottom of connecting pipe, bearing frame 14 is installed to the back wall of ejection of compact machine 12, second servo motor 13 is installed in the front of ejection of compact machine 12, spiral feed rod 16 is installed to the output of second servo motor 13, and the tail end of spiral feed rod 16 extends the inside that gets into bearing frame 14, discharging pipe 11 that two sets of front and back were arranged is installed to the bottom of ejection of compact machine 12.
Mortar in the holding vessel 1 flows out to discharging pipe 11 from the inside, then carry to the space inside of ejection of compact machine 12 through the connecting pipe, later through operation second servo motor 13, then its output shaft drives spiral feed bar 16 and rotates, because second servo motor 13 can rotate towards clockwise and two sets of directions anticlockwise, and ejection of compact machine 12 has two discharge gates 15, can make its ejection of compact faster, if one side discharge gate 15 of ejection of compact machine 12 breaks down, can pass through the reversal direction, make it rotate towards another direction, dredge the maintenance operation to one side discharge gate 15 that breaks down again.
Fixer 9 has been cup jointed to the bottom of puddler 3, and the surface mounting of fixer 9 has two sets of symmetrical arrangement's dead lever 10, and the dead lever 10 keeps away from the one end of fixer 9 and all laminates with the inner wall of holding vessel 1.
Because the bottom of puddler 3 has cup jointed fixer 9, and the laminating of the inner wall of holding vessel 1 is fixed with surface mounting dead lever 10 of fixer 9, can fix the position of its puddler 3, makes its steady rotation.
A plurality of groups of annular railings 17 are installed at the top of the storage tank 1, annular handrails 18 are installed at the tops of the plurality of groups of annular railings 17, a first escalator 19 and a second escalator 20 are installed on one side of the surface of the storage tank 1, the first escalator 19 is located above the second escalator 20, a supporting column 23 is installed at the bottom of the discharging machine 12, and a fixing column 24 is installed at the bottom of the supporting column 23.
The top of the storage tank 1 is provided with a fence consisting of a plurality of groups of annular railings 17 and annular handrails 18, so that the protection effect can be achieved, the first escalator 19 and the second escalator 20 are convenient for people to go up and down the storage tank 1, the device at the top of the storage tank 1 is convenient to inspect, and the supporting columns 23 and the fixing columns 24 are all used for supporting the discharging machine 12.
The outer surface mounting of holding vessel 1 has support ring 21, and the support ring 21 bottom is installed the support frame 22 of multiunit evenly arranging, and multiunit mount 25 is installed to the bottom of multiunit support frame 22.
The support ring 21 and the support frame 22 are used for supporting the storage tank 1, and the fixing frame 25 is used for fixing the support frame 22, so that the stability of the support frame 22 is improved.
The working principle is as follows: in the storage tank 1, by operating the first servo motor 2, an output shaft drives the stirring rod 3 to rotate, the stirring rod 3 is embedded with an upper first spiral sleeve ring 4 and a lower first spiral sleeve ring 5 in a threaded manner, the upper first spiral sleeve ring 4 is provided with a scraping rod 6 and a scraping ring 7, the lower second spiral sleeve ring 5 is provided with a plurality of groups of inclined rods 8 and a scraping rod 6 which are connected, the upper and lower operation is carried out after the rotation is started, mortar on the inner wall of the storage tank 1 can be scraped while the mortar is stirred, meanwhile, the whole formed by the scraping ring 7, the groups of inclined rods 8 and the groups of scraping rods 6 can be pumped up and down while the mortar moves up and down in the storage tank 1, and then the coagulation condition of the mortar is effectively prevented, when the mortar in the storage tank 1 starts to be discharged, the mortar flows out of the discharge pipe 11 from the inside, and is conveyed into the discharge machine 12 along a connecting pipe, then, by operating the second servo motor 13, the output shaft of the second servo motor can be driven to rotate clockwise or anticlockwise, and the two groups of the discharge ports 15 are matched, when one group of the discharge ports 15 is blocked, and the other group of the discharge ports 15 can be used, and the mortar is prevented from delaying the inner part of the storage device from being discharged.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (7)

1. The utility model provides an aerogel heat preservation mortar is with preventing condensing storage device, includes holding vessel (1), its characterized in that: a first servo motor (2) is installed in the middle of the top of the storage tank (1), a stirring rod (3) is installed at the output end of the first servo motor (2), and the bottom end of the stirring rod (3) extends into the space of the storage tank (1);
the utility model discloses a scraper bar, including puddler, stirring rod, first spiral lantern ring (4) and second spiral lantern ring (5) are installed through the screw gomphosis to the surface of puddler (3), and first spiral lantern ring (4) are located the top of second spiral lantern ring (5), the surface mounting of first spiral lantern ring (4) has scraping pole (6) that the multiunit was evenly arranged, multiunit the one end of scraping pole (6) is installed and is scraped ring (7), multiunit the bottom of scraping pole (6) all installs sloping pole (8), and the bottom of sloping pole (8) all laminates with the surface of second spiral lantern ring (5).
2. The anti-condensation storage device for the aerogel thermal insulation mortar according to claim 1, characterized in that: discharging pipe (11) are installed to the bottom of holding vessel (1), the connecting pipe is installed through the flange in the bottom of discharging pipe (11), ejection of compact machine (12) is installed to the bottom of connecting pipe, bearing frame (14) are installed to the back wall of ejection of compact machine (12).
3. The anti-condensation storage device for the aerogel thermal insulation mortar according to claim 2, characterized in that: the front of ejection of compact machine (12) is installed second servo motor (13), spiral feed rod (16) are installed to the output of second servo motor (13), and the tail end of spiral feed rod (16) extends the inside that gets into bearing frame (14), discharge gate (15) that two sets of front and back were arranged are installed to the bottom of ejection of compact machine (12).
4. The aerogel thermal insulation mortar anti-condensation storage device as claimed in claim 1, wherein: fixer (9) have been cup jointed to the bottom of puddler (3), the surface mounting of fixer (9) has two sets of symmetrical arrangement's dead lever (10), and dead lever (10) keep away from the one end of fixer (9) and all laminate with the inner wall of holding vessel (1).
5. The aerogel thermal insulation mortar anti-condensation storage device as claimed in claim 1, wherein: multiunit annular railing (17) are installed at the top of holding vessel (1), multiunit annular handrail (18) are installed at annular railing (17) top, first staircase (19) and second staircase (20) are installed to one side on holding vessel (1) surface, and just first staircase (19) are located the top of second staircase (20).
6. The anti-condensation storage device for the aerogel thermal insulation mortar according to claim 2, characterized in that: a supporting column (23) is installed at the bottom of the discharging machine (12), and a fixing column (24) is installed at the bottom of the supporting column (23).
7. The anti-condensation storage device for the aerogel thermal insulation mortar according to claim 1, characterized in that: the outer surface mounting of holding vessel (1) has support ring (21), support ring (21) bottom is installed the support frame (22) that the multiunit was evenly arranged, multiunit mount (25) are installed to the bottom of support frame (22).
CN202210803514.5A 2022-07-07 2022-07-07 Aerogel heat preservation mortar is with preventing condensing storage device Pending CN115384955A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210803514.5A CN115384955A (en) 2022-07-07 2022-07-07 Aerogel heat preservation mortar is with preventing condensing storage device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210803514.5A CN115384955A (en) 2022-07-07 2022-07-07 Aerogel heat preservation mortar is with preventing condensing storage device

Publications (1)

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CN115384955A true CN115384955A (en) 2022-11-25

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106732161A (en) * 2016-12-08 2017-05-31 无锡海特信成高分子科技有限公司 A kind of drawing mechanism for adhesive agitator
CN211392472U (en) * 2019-10-24 2020-09-01 北京国科诚泰农牧设备有限公司 Fine feed storage device
CN212607090U (en) * 2020-05-25 2021-02-26 贵州吉瑞源实业有限公司 Prevent blockking up fly ash discharging device
CN213650658U (en) * 2020-09-27 2021-07-09 建德南方水泥有限公司 Cement manufacture is with hanging storehouse
CN215157609U (en) * 2021-04-24 2021-12-14 济南鹏发建筑机械有限公司 Auxiliary stirring, dredging and discharging device for discharging of cement bin
CN215206472U (en) * 2021-07-12 2021-12-17 唐山凯捷脱硫石膏制品有限公司 Dry-proof material storage device for gypsum mortar
CN215624178U (en) * 2021-05-24 2022-01-25 常州顺邦建材科技有限公司 Prevent concrete mortar storage tank of ejection of compact of being convenient for of stifled type
CN216224142U (en) * 2021-11-15 2022-04-08 上海允继化工新材料有限公司 A stirring device with residual material cleaning function

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106732161A (en) * 2016-12-08 2017-05-31 无锡海特信成高分子科技有限公司 A kind of drawing mechanism for adhesive agitator
CN211392472U (en) * 2019-10-24 2020-09-01 北京国科诚泰农牧设备有限公司 Fine feed storage device
CN212607090U (en) * 2020-05-25 2021-02-26 贵州吉瑞源实业有限公司 Prevent blockking up fly ash discharging device
CN213650658U (en) * 2020-09-27 2021-07-09 建德南方水泥有限公司 Cement manufacture is with hanging storehouse
CN215157609U (en) * 2021-04-24 2021-12-14 济南鹏发建筑机械有限公司 Auxiliary stirring, dredging and discharging device for discharging of cement bin
CN215624178U (en) * 2021-05-24 2022-01-25 常州顺邦建材科技有限公司 Prevent concrete mortar storage tank of ejection of compact of being convenient for of stifled type
CN215206472U (en) * 2021-07-12 2021-12-17 唐山凯捷脱硫石膏制品有限公司 Dry-proof material storage device for gypsum mortar
CN216224142U (en) * 2021-11-15 2022-04-08 上海允继化工新材料有限公司 A stirring device with residual material cleaning function

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Application publication date: 20221125