CN112378171A - Gypsum powder drying machine for gypsum board production line - Google Patents
Gypsum powder drying machine for gypsum board production line Download PDFInfo
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- CN112378171A CN112378171A CN202011278265.XA CN202011278265A CN112378171A CN 112378171 A CN112378171 A CN 112378171A CN 202011278265 A CN202011278265 A CN 202011278265A CN 112378171 A CN112378171 A CN 112378171A
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- gypsum powder
- pipe
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- hot air
- box
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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
- F26B3/10—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 the gas or vapour carrying the materials or objects to be dried with it
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/14—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers
- B02C18/142—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers with two or more inter-engaging rotatable cutter assemblies
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B1/00—Preliminary treatment of solid materials or objects to facilitate drying, e.g. mixing or backmixing the materials to be dried with predominantly dry solids
- F26B1/005—Preliminary treatment of solid materials or objects to facilitate drying, e.g. mixing or backmixing the materials to be dried with predominantly dry solids by means of disintegrating, e.g. crushing, shredding, milling the materials to be dried
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
- F26B17/10—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by fluid currents, e.g. issuing from a nozzle, e.g. pneumatic, flash, vortex or entrainment dryers
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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
- F26B25/001—Handling, e.g. loading or unloading arrangements
- F26B25/002—Handling, e.g. loading or unloading arrangements for bulk goods
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Microbiology (AREA)
- Crushing And Pulverization Processes (AREA)
- Disintegrating Or Milling (AREA)
Abstract
The invention relates to a gypsum powder dryer for a gypsum board production line, which comprises a feed barrel, a material conveying pipe and a crushing box which are sequentially connected in a penetrating manner, wherein the upper end of the feed barrel is connected with a feed pipe in a penetrating manner, and the front end of the feed barrel is connected with a first hot air branch pipe in a penetrating manner. The crushing device is arranged at the front end inside the crushing box, and a third motor for driving the crushing device to operate is fixed to the top of the crushing box. A bottom air box is connected below the crushing box in a through mode, a partition plate with filter cloth is arranged at the joint of the crushing box and the bottom air box, and a second hot air branch pipe is connected with the bottom air box in a through mode. The second hot air branch pipe and the first hot air branch pipe are communicated with the hot air inlet main pipe. A feeding pipe is vertically arranged above the crushing box, and the tail end of the feeding pipe is connected with a discharging pipe in a through mode. According to the invention, hot air is combined with the rotating blades, so that the gypsum powder is crushed while being dried, and the dryness and the particle size uniformity of the gypsum powder are ensured.
Description
Technical Field
The invention belongs to the technical field of gypsum board production equipment, and particularly relates to a gypsum powder dryer for a gypsum board production line.
Background
In the gypsum board production line, need to send into the powder line pipeline after the wet feeding of gypsum is dried by the fire to smash, traditional feeding mode leads to the dry humidity of gypsum powder inhomogeneous easily, and the granule is not uniform in size.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the invention overcomes the defects of the prior art and provides a gypsum powder dryer for a gypsum board production line.
The technical scheme adopted by the invention for solving the problems in the prior art is as follows:
the utility model provides a gypsum powder desiccator for gypsum board production line, includes by preceding feed barrel, conveying pipeline, the crushing case of through connection in proper order after to, feed barrel upper end through connection has the inlet pipe, front end through connection has first hot-blast branch pipe.
Smash incasement portion front end and be equipped with at least a set of reducing mechanism, reducing mechanism includes blade group, second belt pulley, pivot, and on a plurality of cover blade groups were fixed in the pivot periphery, the pivot horizontal arrangement was put in smashing incasement portion central point, and the at least one end of pivot was worn to establish to smash the incasement portion, and with belt pulley fixed connection.
The blade group surround by 2 ~ 6 arc-shaped blades and form, the blade diameter is the same with crushing incasement portion height.
A third motor is fixed to the top of the crushing box, and a second synchronous belt is sleeved on the output end of the third motor and the second belt pulley.
The position below the crushing box and at the rear end of the crushing device is connected with a bottom air box in a through mode, a partition plate with filter cloth is arranged at the joint of the crushing box and the bottom air box, and the bottom air box is connected with a second hot air branch pipe in a through mode.
The second hot air branch pipe and the first hot air branch pipe are communicated with the hot air inlet main pipe.
The position above the crushing box, which is opposite to the bottom air box, is connected with a vertically arranged feeding pipe in a through mode, and the tail end of the feeding pipe is connected with a discharging pipe in a through mode.
Preferably, the diameter of the feed barrel is larger than that of the conveying pipe, and a circular truncated cone-shaped pipe barrel is arranged at the joint of the feed barrel and the conveying pipe.
A flow guide barrel with an isosceles trapezoid cross section is arranged between the crushing box and the feeding pipe.
Preferably, the material twisting device is arranged inside the material conveying pipe and comprises a front material twisting plate and a rear material twisting plate which are arranged at intervals in the front and the rear direction, the front material twisting plate and the rear material twisting plate are composed of a circular gear ring and a plurality of metal wires fixed inside the gear ring, and the metal wires on the front material twisting plate and the rear material twisting plate are arranged in a crossed mode.
And part of the circular gear rings of the front material twisting plate and the rear material twisting plate are leaked to the outside of the material conveying pipe and are covered with gear boxes.
The circular gear ring of preceding strand board is connected with first gear engagement, and the circular gear ring of back strand board is connected with second gear engagement, and second gear one end is fixed with first belt pulley, and first gear, second gear, first belt pulley rotate the cover jointly and locate on the center pin, and the center pin both ends are connected with gear box inner wall both sides fixed connection or rotation.
The gear box outside is fixed with first motor, and first motor output shaft wears to establish to gear box inside and overlaps and be equipped with third belt pulley, the third gear rather than fixed connection, and the common cover of third belt pulley and first belt pulley is equipped with first synchronous belt, and the third gear is connected with first gear engagement.
Preferably, the front ends of the front cutter-twisting plate and the rear cutter-twisting plate are respectively provided with a first scraper, the diameter of each first scraper is the same as that of the gear ring of the front cutter-twisting plate and the rear cutter-twisting plate, the two ends of each first scraper are fixedly connected with the inner wall of the conveying pipe, and the first scrapers are in contact with the metal wires of the front cutter-twisting plate and the rear cutter-twisting plate.
Preferably, the partition plate comprises a frame, filter cloth and a fixing net, the diameter of a filter hole of the filter cloth is smaller than the diameter of gypsum powder particles, the filter cloth is fixed inside the partition plate, and the fixing net is fixed at the upper end or the upper end and the lower end of the filter cloth.
Preferably, the feeding pipe is internally provided with a horizontally arranged circular filter screen, the diameter of filter holes of the filter screen is the same as that of gypsum powder particles, and the outer diameter of the filter screen is the same as the inner diameter of the feeding pipe.
Preferably, the filter screen center wear to be equipped with the pivot, the pivot top is worn to establish to the unloading outside and is connected with the second motor output, the pivot bottom is fixed with the second scraper blade, second scraper blade top surface and filter screen bottom surface contact.
Preferably, the second scraper blade is obliquely arranged, and an included angle between the second scraper blade and a horizontal plane at the front end of the rotation direction of the second scraper blade is less than 90 degrees.
The bottom of the rotating shaft is fixedly provided with a third scraper, and the top surface of the third scraper is in contact with the bottom surface of the filter screen and is vertical to the bottom surface of the filter screen.
Preferably, the tail end of the discharge pipe is penetrated into the inside of the material collecting box, two different end faces of the material collecting box are respectively provided with a box door and a return air pipe, a joint of the return air pipe and the container is provided with a filter bag, and the filter bag can prevent gypsum powder from entering the return air pipe.
A method for drying gypsum powder comprises the following steps:
A. the gypsum powder wet material enters the feeding barrel through the feeding pipe, and then is blown into the conveying pipe by hot air blown by the first hot air branch pipe, and the gypsum powder on the surface of the gypsum powder wet material is dried by the hot air;
B. first motor passes through first gear, second gear drive front reamer board, back reamer board and rotates, will smash through the wet material of gypsum powder between them.
The third gear is meshed with the first gear, and the second gear is connected with the third belt pulley through the first belt pulley and the first synchronous belt, so that the first gear and the second gear are opposite in steering, the front winch plate and the rear winch plate are opposite in steering, and the crushing effect of the front winch plate and the rear winch plate on gypsum powder is optimized;
C. the wet gypsum powder material passing through the material twister enters the crushing box and is further crushed by the rotating blade group, and the hot air is contacted with the crushed wet gypsum powder material to dry the gypsum powder;
D. the gypsum powder is blown to the upper part of the bottom air box by the first hot air branch pipe, the airflow blown by the second hot air branch pipe is blown out through the partition plate, the gypsum powder is blown into the feeding pipe upwards, the movement track of the gypsum powder is changed, the gypsum powder vertically moves upwards, the part is equivalent to the lifting of the gypsum powder, the gypsum powder is fully contacted with the hot air blown by the second hot air branch pipe, and the drying effect of the gypsum powder is optimized;
get into the gesso of material loading intraduct and filter through the filter screen, the filtration pore diameter of filter screen is the same with the gesso particle diameter, therefore inside the fully kibbling gesso accessible filter screen flowed into the discharging pipe, and not fully kibbling gesso can be smashed by rotatory second scraper blade, and then passes through the filter screen.
Compared with the prior art, the invention has the following beneficial effects:
(1) the gypsum powder is dried by hot air, and the evaporated water vapor can be discharged out of the dryer along with the hot air, so that the dryness of the interior of the dryer is kept constantly.
(2) The process that the gesso circulates passes through rotatory hank glassware and blade in proper order, and hank glassware and blade can smash the gesso, further optimizes the drying effect of gesso.
(3) The filter screen is arranged at the gypsum powder outlet, and the diameter of the filter holes of the filter screen is the same as the diameter of gypsum powder particles, so that the gypsum powder can be completely smashed during discharging, and the consistency of the size of the gypsum powder particles of the discharged material is ensured.
(4) The gypsum powder has a certain distance of ascending space before discharging, and is blown by hot air from bottom to top, so that the drying effect of the gypsum powder is further optimized.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a first external view of a gypsum powder dryer for a gypsum board production line according to the present invention,
figure 2 is a second profile view of the present invention,
figure 3 is a central cross-sectional view of the present invention,
figure 4 is a cross-sectional view of the bottom gas tank of the present invention taken at the center thereof,
figure 5 is a diagram of the construction of the strander of the present invention,
figure 6 is a cross-sectional view of a first flight of the invention,
figure 7 is a block diagram of the impeller of the present invention,
figure 8 is an exploded view of the separator plate structure of the present invention,
FIG. 9 is a view showing the structure of the second squeegee according to the present invention.
In the figure: 1-feeding barrel, 101-feeding pipe, 2-feeding pipe, 201-gear box, 202-first scraper, 3-crushing box, 301-guide barrel, 4-feeding pipe, 5-discharging pipe, 6-collecting box, 601-box door, 602-air return pipe, 603-filter bag, 7-bottom air box, 701-clapboard, 7011-frame, 7012-filter cloth, 7013-fixing net, 8-hot air inlet main pipe, 801-first hot air branch pipe, 802-second hot air branch pipe, 9-twisting device, 901-front twisting plate, 902-rear twisting plate, 10-central shaft, 1001-first gear, 1002-second gear, 1003-first belt pulley, 1004-first synchronous belt, 11-first motor, 1101-third belt pulley, 1102-a third gear, 12-a blade group, 1201-a second belt pulley, 1202-a rotating shaft, 13-a second motor, 1301-a rotating shaft, 1302-a second scraper blade, 1303-a third scraper blade, 14-a third motor, 15-a second synchronous belt, 16-a filter screen and 17-a support frame.
Detailed Description
The attached drawings are the best embodiment of the gypsum powder dryer for the gypsum board production line, and the invention is further described in detail by combining the attached drawings.
As shown in attached drawings 1, 2 and 3, the gypsum powder dryer for the gypsum board production line comprises a feeding barrel 1, a material conveying pipe 2 and a crushing box 3 which are sequentially communicated from front to back. The diameter of the feed barrel 1 is larger than that of the feed delivery pipe 2, a truncated cone-shaped pipe barrel is arranged at the joint of the feed barrel 1 and the feed delivery pipe 2, the upper end of the feed barrel 1 is connected with the feed pipe 101 in a through mode, and the front end of the feed barrel is connected with the first hot air branch pipe 801 in a through mode.
The material twisting device 9 is arranged inside the material conveying pipe 2, and the material twisting device 9 comprises a front material twisting plate 901 and a rear material twisting plate 902 which are arranged at intervals in the front-rear direction. As shown in fig. 5, the front cutter plate 901 and the rear cutter plate 902 are both composed of a circular gear ring and a plurality of metal wires fixed inside the gear ring, and the metal wires on the same cutter plate are all arranged in parallel. The metal wires on the rear winch plate 902 and the front winch plate 901 are arranged in a crossed mode.
And part of the circular gear rings of the front cutter material plate 901 and the rear cutter material plate 902 leak to the outside of the material conveying pipe 2 and are covered with a gear box 201.
The circular gear ring of preceding strand board 901 is connected with first gear 1001 meshing, and the circular gear ring of back strand board 902 is connected with second gear 1002 meshing, and second gear 1002 one end is fixed with first belt pulley 1003, and first gear 1001, second gear 1002, first belt pulley 1003 rotate the cover jointly and locate on center pin 10, and center pin 10 both ends and gear box 2 inner wall both sides fixed connection or rotation are connected.
A first motor 11 is fixed outside the gear box 2, an output shaft of the first motor 11 penetrates through the gear box 2 and is sleeved with a third belt pulley 1101 and a third gear 1102 which are fixedly connected with the first motor, the third belt pulley 1101 and the first belt pulley 1003 are sleeved with a first synchronous belt 1004, and the third gear 1102 is meshed with the first gear 1001.
The front ends of the front cutter-twisting plate 901 and the rear cutter-twisting plate 902 are respectively provided with a first scraper 202, the diameter of each first scraper 202 is the same as that of the gear rings of the front cutter-twisting plate 901 and the rear cutter-twisting plate 902, two ends of each first scraper 202 are fixedly connected with the inner wall of the conveying pipe 2, and the first scrapers 202 are in contact with metal wires of the front cutter-twisting plate 901 and the rear cutter-twisting plate 902. In order to reduce the resistance of the first blade 202 against hot wind, the horizontal cross-sectional shape of the first blade 202 is a shuttle shape as shown in fig. 6.
As shown in fig. 3, at least one set of crushing device is disposed at the front end inside the crushing box 3, the crushing device includes a blade set 12, a second belt pulley 1201, and a rotating shaft 1202, the blade set 12 is fixed on the circumferential surface of the rotating shaft 1202, the rotating shaft 1202 is horizontally disposed at the central position inside the crushing box 3, and at least one end of the rotating shaft 1202 penetrates through the crushing box 3 and is fixedly connected with the belt pulley 1201.
The blade group 12 is formed by surrounding 2-6 arc-shaped blades in an annular array, and the diameter of each blade is the same as the height of the inside of the crushing box 3.
The crushing case 3 of this embodiment is inside to be equipped with 2 ~ 5 reducing mechanism groups, and the mutual staggered arrangement of each group's reducing mechanism's blade group 12.
The top of the crushing box 3 is fixed with a third motor 14, and the output end of the third motor 14 and the second belt pulley 1201 are sleeved with a second synchronous belt 15.
As shown in fig. 4, a bottom air box 7 is connected to a portion below the crushing box 3 at the rear end of the crushing device in a penetrating manner, and a partition 701 is provided at a joint between the crushing box 3 and the bottom air box 7. As shown in fig. 8, the partition plate 701 includes a frame 7011, a filter cloth 7012, and a fixing net 7013, wherein the diameter of the filter holes of the filter cloth 7012 is smaller than the diameter of gypsum powder particles, the filter cloth 7012 is fixed inside the partition plate 701, and the fixing net 7013 is fixed at the upper end or upper and lower ends of the filter cloth 7012.
The bottom air box 7 is connected with a second hot air branch pipe 802 in a penetrating way, hot air is blown upwards through the partition plate 701, and the filter cloth 7012 can be prevented from being blown up by the hot air for the fixing position 7013 above the filter cloth 7012.
The partition plate 701 is located at the rear ends of all the crushing devices, the gypsum powder crushed by the crushing devices is blown into the upper portion of the partition plate 701 through the first hot air branch pipes 801, and the part of the gypsum powder is blown upwards through hot air blown by the second hot air branch pipes 802 and is blown into the feeding pipe 4.
The second hot blast branch pipe 802 and the first hot blast branch pipe 801 are both communicated with the hot blast air inlet header pipe 8. The hot air inlet main pipe 8 is connected with a hot air supply pipeline of a plant area through a valve.
The inside circular filter screen 16 that is equipped with the horizontal arrangement of material loading pipe 4, the diameter of filter 16 filtration pore is the same with the diameter of gesso granule, the filter screen 16 external diameter is the same with material loading pipe 4 internal diameter.
As shown in fig. 9, a rotating shaft 1301 penetrates through the center of the filter screen 16, the top of the rotating shaft 1301 penetrates through the outer portion of the feeding pipe 4 and is connected to the output end of the second motor 13, a second scraper 1302 is fixed at the bottom of the rotating shaft 1301, and the top surface of the second scraper 1302 contacts with the bottom surface of the filter screen 16.
The second scraping board 1302 is obliquely arranged, and an included angle between the second scraping board 1302 and a horizontal plane at the front end of the rotation direction of the second scraping board 1302 is smaller than 90 degrees.
And a third scraper 1303 is fixed at the bottom of the rotating shaft 1301, and the top surface of the third scraper 1303 is in contact with the bottom surface of the filter screen 16 and is perpendicular to the bottom surface.
When the second scraper 1302 rotates, the gypsum powder attached to the lower surface of the screen 16 and not passing through the screen 16 at all is crushed, and the part of the gypsum powder is crushed and passes through the screen 16.
The gypsum powder discharged from the discharge pipe 5 can directly flow into a gypsum board production line and can also be collected independently.
When needing to collect alone, discharging pipe 5 end wear to establish to the workbin 6 inside, two terminal surfaces that the workbin 6 is different that gather be equipped with chamber door 601, return air pipe 602 respectively, return air pipe 602 and 6 knecks of container are equipped with filter bag 603, filter bag 603 can block that the gesso enters into return air pipe 602 inside. The gypsum powder is gathered in the material collecting box 6, and after the gypsum powder is collected, the box door 601 can be opened to take out the gypsum powder. The hot air flows into the plant boiler and other equipment capable of utilizing the residual heat through the return air pipe 602, and the residual heat in the hot air is reused.
Install support frame 17 between feed bucket 1, conveying pipeline 2, 3 bottoms of crushing case and the ground, gypsum board production line still includes automatically controlled cabinet with gypsum powder desiccator, the inside PLC that is equipped with of automatically controlled cabinet, PLC and gypsum board production line carry out electric connection with so electrical components that gypsum powder desiccator contained, and the factory power provides the required power of work for the electrical components that gypsum board production line contains with gypsum powder desiccator.
A method for drying gypsum powder comprises the following steps:
A. the gypsum powder wet material enters the feeding barrel 1 through the feeding pipe 101, and then is blown into the conveying pipe 2 by hot air blown by the first hot air branch pipe 801, and the gypsum powder on the surface of the gypsum powder wet material is dried by the hot air;
B. the first motor 11 drives the front cutter blade 901 and the rear cutter blade 902 to rotate through the first gear 1001 and the second gear 1002, and the gypsum powder wet material passing through the front cutter blade and the rear cutter blade is crushed.
Because the third gear 1102 is meshed with the first gear 1001 and the second gear 1002 is connected with the third pulley 1101 through the first pulley 1003 and the first synchronous belt 1004, the directions of the first gear 1001 and the second gear 1002 are opposite, so that the directions of the front material twisting plate 901 and the rear material twisting plate 902 are opposite, and the gypsum powder crushing effect of the front material twisting plate 901 and the rear material twisting plate 902 is optimized;
E. the wet gypsum powder material passing through the material twister 9 enters the crushing box 3 and is further crushed by the rotating blade group 12, and the wet gypsum powder material after being crushed is contacted with hot air to dry the gypsum powder;
F. the gypsum powder is blown into the upper part of the bottom air box 7 by the first hot air branch pipe 801, the airflow blown by the second hot air branch pipe 802 is blown out through the partition plate 701, the gypsum powder is blown into the feeding pipe 4 upwards, the movement track of the gypsum powder is changed, the gypsum powder vertically moves upwards, the part is equivalent to the upward lifting of the gypsum powder, the gypsum powder is enabled to be fully contacted with hot air blown out by the second hot air branch pipe 802, and the drying effect of the gypsum powder is optimized;
the gypsum powder entering the interior of the feeding pipe 4 is filtered by the filter screen 16, and the diameter of the filter holes of the filter screen 16 is the same as the particle diameter of the gypsum powder, so that the completely pulverized gypsum powder can flow into the discharging pipe 5 through the filter screen 16, and the incompletely pulverized gypsum powder can be pulverized by the rotating second scraper 1302, and then pass through the filter screen 16.
The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (10)
1. The utility model provides a gypsum powder desiccator for gypsum board production line which characterized in that:
comprises a feed barrel (1), a material conveying pipe (2) and a crushing box (3) which are sequentially communicated from front to back, wherein the upper end of the feed barrel (1) is communicated with a feed pipe (101), the front end is communicated with a first hot air branch pipe (801),
at least one group of crushing devices are arranged at the front end inside the crushing box (3), each crushing device comprises a blade group (12), a second belt pulley (1201) and a rotating shaft (1202), a plurality of sets of blade groups (12) are fixed on the circumferential surface of the rotating shaft (1202), the rotating shaft (1202) is horizontally arranged at the central position inside the crushing box (3), at least one end of the rotating shaft (1202) penetrates through the outer part of the crushing box (3) and is fixedly connected with the belt pulleys (1201),
the blade group (12) is formed by surrounding 2-6 arc-shaped blades in an annular array, the diameter of each blade is the same as the internal height of the crushing box (3),
a third motor (14) is fixed on the top of the crushing box (3), a second synchronous belt (15) is sleeved on the output end of the third motor (14) and a second belt pulley (1201) together,
a bottom air box (7) is connected in a penetrating way at the position below the crushing box (3) and at the rear end of the crushing device, a partition plate (701) with filter cloth (7012) is arranged at the interface of the crushing box (3) and the bottom air box (7), a second hot air branch pipe (802) is connected in a penetrating way at the bottom air box (7),
the second hot air branch pipe (802) and the first hot air branch pipe (801) are communicated with a hot air inlet main pipe (8),
the upper part of the crushing box (3) is in through connection with a vertically arranged feeding pipe (4) at a position opposite to the bottom air box (7), and the tail end of the feeding pipe (4) is in through connection with a discharging pipe (5).
2. The gypsum powder dryer for gypsum board production line according to claim 1, characterized in that:
the diameter of the feed barrel (1) is larger than that of the feed delivery pipe (2), a truncated cone-shaped pipe barrel is arranged at the joint of the feed barrel (1) and the feed delivery pipe (2),
a flow guide barrel (301) with an isosceles trapezoid cross section is arranged between the crushing box (3) and the feeding pipe (4).
3. The gypsum powder dryer for gypsum board production line according to claim 1 or 2, characterized in that:
a material twisting device (9) is arranged in the material conveying pipe (2), the material twisting device (9) comprises a front material twisting plate (901) and a rear material twisting plate (902) which are arranged at intervals in the front and the rear, the front material twisting plate (901) and the rear material twisting plate (902) are respectively composed of a circular gear ring and a plurality of metal wires fixed in the gear ring, the metal wires on the front material twisting plate (901) and the rear material twisting plate (902) are arranged in a crossed manner,
a part of the circular gear rings of the front cutter-grinding plate (901) and the rear cutter-grinding plate (902) leaks to the outside of the material conveying pipe (2) and is covered with a gear box (201),
the circular gear ring of the front material twisting plate (901) is meshed with the first gear (1001), the circular gear ring of the rear material twisting plate (902) is meshed with the second gear (1002), one end of the second gear (1002) is fixed with a first belt pulley (1003), the first gear (1001), the second gear (1002) and the first belt pulley (1003) are jointly and rotatably sleeved on the central shaft (10), two ends of the central shaft (10) are fixedly or rotatably connected with two sides of the inner wall of the gear box (2),
a first motor (11) is fixed to the outer portion of the gear box (2), an output shaft of the first motor (11) penetrates through the gear box (2) and is sleeved with a third belt pulley (1101) and a third gear (1102) which are fixedly connected with the first motor, a first synchronous belt (1004) is sleeved on the third belt pulley (1101) and the first belt pulley (1003) together, and the third gear (1102) is meshed with the first gear (1001).
4. The gypsum powder dryer for gypsum board production line according to claim 3, characterized in that:
the front ends of the front cutter-twisting plate (901) and the rear cutter-twisting plate (902) are respectively provided with a first scraper (202), the diameter of each first scraper (202) is the same as that of the gear rings of the front cutter-twisting plate (901) and the rear cutter-twisting plate (902), the two ends of each first scraper (202) are fixedly connected with the inner wall of the conveying pipeline (2), and the first scrapers (202) are in contact with metal wires of the front cutter-twisting plate (901) and the rear cutter-twisting plate (902).
5. The gypsum powder dryer for gypsum board production line according to claim 1, 2 or 4, wherein:
the partition plate (701) comprises a frame (7011), filter cloth (7012) and a fixing net (7013), the diameter of a filter hole of the filter cloth (7012) is smaller than the diameter of gypsum powder particles, the filter cloth (7012) is fixed inside the partition plate (701), and the fixing net (7013) is fixed at the upper end or the upper end and the lower end of the filter cloth (7012).
6. The gypsum powder dryer for gypsum board production line according to claim 1, 2 or 4, wherein:
the feeding pipe (4) is internally provided with a horizontally arranged circular filter screen (16), the diameter of filter holes of the filter screen (16) is the same as that of gypsum powder particles, and the outer diameter of the filter screen (16) is the same as the inner diameter of the feeding pipe (4).
7. The gypsum powder dryer for gypsum board production line according to claim 6, wherein:
the center of the filter screen (16) is provided with a rotating shaft (1301) in a penetrating mode, the top of the rotating shaft (1301) is provided with the outer portion of the feeding pipe (4) in a penetrating mode and connected with the output end of the second motor (13), the bottom of the rotating shaft (1301) is fixedly provided with a second scraper blade (1302), and the top surface of the second scraper blade (1302) is in contact with the bottom surface of the filter screen (16).
8. The gypsum powder dryer for gypsum board production line according to claim 7, wherein:
the second scraping plate (1302) is obliquely arranged, the included angle between the second scraping plate (1302) and the horizontal plane at the front end of the rotation direction is less than 90 degrees,
and a third scraper blade (1303) is fixed at the bottom of the rotating shaft (1301), and the top surface of the third scraper blade (1303) is in contact with the bottom surface of the filter screen (16) and is vertical to the bottom surface.
9. The gypsum powder dryer for gypsum board production line according to claim 1, 2, 4, 7 or 8, wherein:
discharging pipe (5) end wear to establish to the workbin (6) inside, two terminal surfaces that the workbin (6) that gather together differ on be equipped with chamber door (601), return air pipe (602) respectively, return air pipe (602) and container (6) kneck are equipped with and cross filter bag (603), cross filter bag (603) and can block that the gesso enters into inside return air pipe (602).
10. A method for drying gypsum powder is characterized by comprising the following steps:
A. the wet gypsum powder material enters the feeding barrel (1) through the feeding pipe (101), and then is blown into the conveying pipe (2) by hot air blown by the first hot air branch pipe (801), and the gypsum powder on the surface of the wet gypsum powder material is dried by the hot air;
B. the first motor (11) drives the front cutter blade (901) and the rear cutter blade (902) to rotate through the first gear (1001) and the second gear (1002) to crush the gypsum powder wet material passing through the front cutter blade and the rear cutter blade,
the third gear (1102) is meshed with the first gear (1001), and the second gear (1002) is connected with the third belt pulley (1101) through the first belt pulley (1003) and the first synchronous belt (1004), so that the first gear (1001) and the second gear (1002) are reversely rotated, the front cutter plate (901) and the rear cutter plate (902) are reversely rotated, and the crushing effect of the front cutter plate and the rear cutter plate on gypsum powder is optimized;
C. the wet gypsum powder material passing through the material twisting device (9) enters the crushing box (3) and is further crushed by the rotating blade group (12), and the wet gypsum powder material is contacted with hot air to dry the gypsum powder;
D. the gypsum powder is blown into the upper part of the bottom air box (7) by the first hot air branch pipe (801), air flow blown by the second hot air branch pipe (802) is blown out through the partition plate (701), the gypsum powder is blown into the interior of the feeding pipe (4) upwards, the motion track of the gypsum powder is changed, the gypsum powder moves vertically upwards, and the part is equivalent to the upward lifting of the gypsum powder, so that the gypsum powder is fully contacted with hot air blown out by the second hot air branch pipe (802), and the drying effect of the gypsum powder is optimized;
the gypsum powder entering the feeding pipe (4) is filtered through the filter screen (16), the diameter of the filter holes of the filter screen (16) is the same as the diameter of the gypsum powder particles, so that the completely crushed gypsum powder can flow into the discharging pipe (5) through the filter screen (16), and the incompletely crushed gypsum powder can be crushed by the rotating second scraper blade (1302) and further passes through the filter screen (16).
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| CN112378171B (en) | 2022-07-15 |
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Address after: No.7000 Guangdian Road, Zhoucun District, Zibo City, Shandong Province, 255399 Applicant after: Shandong Jingxin Machinery Equipment Co.,Ltd. Address before: No.7000 Guangdian Road, Zhoucun District, Zibo City, Shandong Province, 255399 Applicant before: ZIBO JINGXIN ELECTRICAL AND MECHANICAL MANUFACTURING Co.,Ltd. |
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