CN104874490B - A vertical sedimentation type scraper discharge centrifuge - Google Patents

Abstract

The invention discloses a kind of vertical settling type unloading under scraper centrifuge, including following operating procedure：1), before centrifuge charging, cylinder starts, and air cylinder driven lifting shaft simultaneously drives closed cap to move, and the endoporus of rotary drum bottom small end is closed by closed cap, and mair motor drives mainshaft driven band wheel drive rotary drum and closed cap rotation；2) when, centrifuge feeds, mixed material is added in rotary drum, under the influence of centrifugal force, solid-liquid is layered, and liquid is aspirated away；3), scraper, rotary drum reduce rotating speed, are rotated with relatively low rotating speed, start scraper oil cylinder, the solid on rotatory drum wall is scraped by scraper the bottom of rotary drum；4), it is beaten；5), beating terminates, and paddle and scraper is risen, rotating speed raising speed, carries out separation of solid and liquid again, aspirates away liquid again by liquid pipe is skimmed；6), discharging.Present configuration is simple, and it is multi-functional to integrate separation, beating, discharging etc., reduces operation, and process route is compact, improves production efficiency.

Description

A vertical sedimentation type scraper discharge centrifuge

technical field

The invention belongs to the field of centrifuges, and in particular relates to a vertical sedimentation type scraper discharge centrifuge.

Background technique

Centrifuge is a kind of equipment widely used in chemical, pharmaceutical and other industries for solid-liquid separation. In many processes, it is necessary to fully stir and mix the materials scraped by the centrifuge for the first time with a solvent, and then separate them for the second time after washing. . Under normal circumstances, after being separated by the scraper discharge centrifuge, the material scraped by the scraper is discharged from the discharge hole at the bottom of the drum and needs to enter another tank for beating. After the beating is completed, it enters the centrifuge for separation. There are many demands, the process route is long, the process is many, and the input cost is high.

Contents of the invention

The object of the present invention is to solve the above-mentioned technical problems.

The purpose of the present invention is achieved in this way: a vertical sedimentation type scraper discharge centrifuge, including a machine base, the top of the machine base is connected to the machine cover through the casing, the inside of the casing is provided with a drum, and the right side of the machine base is set There is a motor seat, and the main motor is arranged on the motor seat. It is characterized in that: the middle part of the drum is provided with a closed cover, the upper part of the closed cover is a conical section, the lower part of the closed cover is a cylindrical section, and the outer ring of the cylindrical section of the closed cover is set. There is a sealing ring and is matched with the inner hole of the small end of the lower part of the drum; the four corners of the bottom of the machine base are connected by damping shock absorbers and brackets, a receiving hopper is arranged in the center hole of the machine base, and a discharging hopper is arranged under the receiving hopper. The center of the hopper is provided with a bearing seat, and the bearing seat is provided with a bearing, a main shaft, and a lifting shaft in sequence from outside to inside; a main shaft driven pulley is installed at the lower end of the main shaft, and the driving pulley on the output shaft of the main motor is connected to the main shaft driven belt through a belt. There is a cylinder inside the driven pulley of the main shaft, the output end of the cylinder is connected with the bottom of the lifting shaft, the bottom of the cylinder is provided with a rotary joint, the top of the lifting shaft is connected with the top of the closing cover; the upper left side of the cover is provided with a beating device, a scraper oil cylinder is arranged on the upper right side of the machine cover, and an air pipe is arranged on the left side of the scraper oil cylinder on the machine cover; a scraper is arranged on the protruding end of the scraper oil cylinder, and a nozzle is arranged under the scraper, and a flexible pipe is connected between the nozzle and the air pipe. Tube, nozzle, and scraper are all on the right side of the drum and facing the inner wall of the drum; the beating device includes a base, a motor, and a driving pulley is arranged on the output shaft of the motor, and the driving pulley passes through the belt and the driven pulley Connection, the left side of the base is provided with an outer cylinder, the right side of the base is provided with an oil cylinder, and the top of the piston rod of the oil cylinder is provided with a connecting rod; the left side of the outer cylinder is fixed with a motor, and the end cover on the top of the outer cylinder is connected with the driven There is a seal between the small end outer ring of the pulley, and a rotating shaft is arranged inside the outer cylinder, which is connected to the inner hole of the outer cylinder through bearing A, and the upper end of the outer ring of the rotating shaft is connected to the driving pulley through a key , the inside of the rotating shaft is provided with a stirring shaft, the top of the stirring shaft is connected with the connecting rod through the bearing B, and the lower end of the stirring shaft is provided with a stirring paddle, which is located on the left side inside the drum.

No filter holes are provided on the inner wall of the drum.

The upper part of the inner hole of the rotating shaft is provided with internal splines, and the upper part of the outer circle of the stirring shaft is provided with external splines.

Including the following steps:

1) Before feeding the centrifuge, the cylinder starts, the cylinder drives the lifting shaft and drives the closing cover to move, the closing cover closes the inner hole at the lower end of the drum, and the main motor drives the main shaft driven pulley to drive the drum and the closing cover to rotate. Reach the feed speed;

2) When the centrifuge feeds, add the mixed material into the drum, under the action of centrifugal force, the solid and liquid are separated, and the liquid phase is sucked out through the skimmer;

3) For material scraping, the drum reduces the speed and rotates at a lower speed, starts the scraper cylinder, and scrapes the solids on the wall of the drum to the bottom of the drum through the scraper;

4) Beating, add beating liquid, start the motor, the driving pulley drives the driven pulley to rotate through the belt, the driven pulley drives the stirring shaft to rotate in the outer cylinder through the rotating shaft, and the stirring paddle installed at the lower end of the stirring shaft also follows Synchronous rotation; start the oil cylinder, the piston rod of the oil cylinder drives the stirring shaft through the connecting rod to make a downward movement while rotating, the outer spline of the stirring shaft slides down on the inner spline of the rotating shaft, and the oil cylinder drives the stirring paddle to drop into the material liquid , driven by the motor, the stirring shaft drives the stirring paddle to rotate at a high speed and stir at a high speed. At the same time, in order to enhance the beating effect, the scraper also enters the material liquid, and the high-pressure gas is injected from the air pipe and sprayed out from the nozzle, so that the material liquid is fully mixed;

5) After the beating is finished, the stirring paddle and the scraper are raised, the speed is increased, and the solid-liquid separation is performed again, and the liquid is also sucked out through the skimming pipe;

6) Unloading, start the cylinder to move the closing cover upwards, so that the discharge hole of the drum is opened, the drum reduces the speed, and the scraper cylinder is started to scrape the solids on the wall of the drum to the discharge hole of the drum through the scraper , and discharge out of the machine from the hopper.

The invention is simple in structure, integrates separation, beating, unloading and other functions, does not need additional beating and mixing equipment, is convenient to operate, reduces procedures, compact process route, improves production efficiency, and has good economic and social benefits for popularization and application .

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

Fig. 2 is the structural representation of beating device of the present invention

In the figure: 1. Beating device; 2. Drum; 3. Housing; 4. Main shaft; 5. Closure cover; 6. Lifting shaft; 7. Bearing seat; .Bracket; 11. Hopper; 12. Cylinder; 13. Main shaft driven pulley; 14. Main motor; 15. Nozzle; 16. Scraper; 17. Machine cover; 18. Scraper cylinder; 19. Gas pipe; ; 102. outer cylinder; 103. rotating shaft; 104. stirring shaft; 105. motor; 106. driving pulley; 107. belt; 108. driven pulley; 109. bearing A; 110. bearing B; 111. Connecting rod; 112. oil cylinder; 113. stirring paddle.

detailed description

The present invention will be further described below in conjunction with accompanying drawing, but not as limiting the present invention:

A vertical subsidence type scraper discharge centrifuge, including a machine base 8, the top of the machine base 8 is connected to the machine cover 17 through the casing 3, the inside of the casing 3 is provided with a drum 2, and the right side of the machine base 8 is provided with a motor The motor seat is provided with a main motor 14, the middle part of the drum 2 is provided with a closed cover 5, the upper part of the closed cover 5 is a conical section, the lower part of the closed cover 5 is a cylindrical section, and the outer ring of the cylindrical section of the closed cover 5 is set There is a sealing ring and cooperates with the inner hole of the small end of the lower part of the drum 2; the four corners of the bottom of the machine base 8 are connected by a damping type shock absorber 9 and the bracket 10, and a receiving hopper is arranged in the center hole of the machine base 8, and the lower part of the receiving hopper is arranged There is a discharge hopper 11, and the center of the receiving hopper is provided with a bearing seat 7, and the bearing seat 7 is sequentially provided with a bearing, a main shaft 4, and a lifting shaft 6 from the outside to the inside; the lower end of the main shaft 4 is equipped with a main shaft driven pulley 13, and the main motor 14 outputs The driving pulley on the shaft is connected to the main shaft driven pulley 13 through a belt; the main shaft driven pulley 13 is provided with a cylinder 12, the output end of the cylinder 12 is connected with the bottom of the lifting shaft 6, and the bottom of the cylinder 12 is provided with a rotary joint. The top of the lifting shaft 6 is connected with the top of the closing cover 5; a beating device 1 is arranged on the upper left side of the machine cover 17, a scraper oil cylinder 18 is arranged on the upper right side of the machine cover 17, and an air pipe is arranged on the left side of the scraper oil cylinder 18 on the machine cover 17 19. A scraper 16 is provided on the extended end of the scraper oil cylinder 18, and a nozzle 15 is arranged below the scraper 16. A hose is connected between the nozzle 15 and the air pipe 19. The nozzle 15 and the scraper 16 are all on the right side of the drum 2 and Toward the inner wall of the drum 2; the beating device 1 includes a base 101, a motor 105, the output shaft of the motor 105 is provided with a driving pulley 106, the driving pulley 106 is connected with a driven pulley 108 through a belt 107, and the base 101 The left side of the outer cylinder 102 is provided with an outer cylinder 102, the right side of the base 101 is provided with an oil cylinder 112, and the top of the piston rod of the oil cylinder 112 is provided with a connecting rod 111; the left side of the outer cylinder 102 is fixed with a motor 105, and the top of the outer cylinder 102 is A seal is provided between the end cover and the small end outer ring of the driven pulley 108, and a rotating shaft 103 is arranged inside the outer cylinder 102, and the rotating shaft 103 is connected with the inner hole of the outer cylinder 102 through a bearing A109, and the rotating shaft 103 The upper end of the outer ring is connected with the driven pulley 108 through a key, and the stirring shaft 104 is arranged inside the rotating shaft 103, and the top end of the stirring shaft 104 is connected with the connecting rod 111 through the bearing B110, and the stirring paddle 113 is arranged at the lower end of the stirring shaft 104. The paddle 113 is located on the left side inside the drum 2; the inner wall of the drum 2 is not provided with filter holes; the upper part of the inner hole of the rotating shaft 103 is provided with an internal spline, and the upper part of the outer circle of the stirring shaft 104 is provided with an external spline.

During specific implementation, the operation steps are as follows: 1), before the centrifuge feeds, the cylinder 12 starts, the cylinder 12 drives the lifting shaft 6 and drives the closing cover 5 to move, the closing cover 5 seals the inner hole of the small end of the bottom of the drum 2, and the main motor 14 drives the main shaft driven pulley 13 to drive the drum 2 and the closing cover 5 to rotate to reach the feeding speed; 2), when feeding the centrifuge, add the mixed material in the drum 2, and under the action of centrifugal force, the solid-liquid separation layer, the liquid phase is sucked out through the skimming pipe; 3), scraping material, the drum 2 reduces the speed, rotates at a lower speed, starts the scraper cylinder 18, and scrapes the solid on the wall of the drum 2 by the scraper 16 Fall to the bottom of drum 2; 4), beating, add beating liquid, start motor 105, driving pulley 106 drives driven pulley 108 to rotate through belt 107, driven pulley 108 drives stirring shaft 104 outside by rotating shaft 103 The cylinder body 102 rotates inside, and the stirring paddle 113 installed at the lower end of the stirring shaft 104 also rotates synchronously; the cylinder 112 is started, and the piston rod of the oil cylinder 112 drives the stirring shaft 104 to perform downward movement while rotating through the connecting rod 111, and the stirring shaft 104 The outer spline of the shaft slides downward on the inner spline of the rotating shaft 103, and the oil cylinder 112 drives the stirring paddle 113 to drop into the feed liquid. Driven by the motor 105, the stirring shaft 104 drives the stirring paddle 113 to rotate and stir at a high speed. The effect scraper 16 also enters in the feed liquid, and the high-pressure gas is introduced from the air pipe 19 to be ejected from the nozzle 15, so that the feed liquid is fully mixed; Carry out solid-liquid separation again, and the liquid is also sucked out through the skimming pipe; 6), unloading, start the cylinder 12 to move the closing cover 5 upwards, so that the blanking hole of the drum 2 is opened, the drum 2 reduces the speed, and starts The scraper cylinder 18 scrapes the solids on the wall of the drum 2 to the discharge hole of the drum 2 through the scraper 16, and discharges them out of the machine from the discharge hopper 11.

Apparently, the above-mentioned embodiments are only examples for clearly illustrating the present invention, rather than limiting the implementation. For those of ordinary skill in the art, on the basis of the above description, other changes or changes in different forms can also be made, and it is not necessary and impossible to exhaustively enumerate all the implementation modes here, and the obvious Variations or changes are still within the protection scope of the present invention.

Claims (4)

1. a kind of vertical settling type unloading under scraper centrifuge, including support (8), passes through casing (3) and cover above support (8) (17) connect, casing (3) is internally provided with rotary drum (2), and support is provided with motor cabinet on the right side of (8), is provided with main electricity on motor cabinet Machine (14), it is characterised in that：The middle part of described rotary drum (2) is provided with closed cap (5), and closed cap (5) top is conical section, closes It is cylindrical section to close cover (5) bottom, and the cylindrical section outer ring of closed cap (5) is provided with sealing ring interior with rotary drum (2) bottom small end Hole coordinates；Support (8) bottom corner is all connected by damp type damper (9) and support (10), and the center in the hole of support (8) sets Be equipped with receiving hopper, the lower section of receiving hopper is provided with discharge bucket (11), receiving hopper be provided centrally with bearing block (7), bearing block (7) Bearing, main shaft (4), lifting shaft (6) are disposed with from outside to inside；Main shaft (4) lower end is provided with mainshaft driven belt wheel (13), main Driving pulley on motor (14) output shaft connects mainshaft driven belt wheel (13) by belt；Set inside mainshaft driven belt wheel (13) Cylinder (12) is equipped with, the output end of cylinder (12) is connected with the bottom of lifting shaft (6), and the bottom of cylinder (12) is provided with rotation and connects Head, the top of lifting shaft (6) are connected with the top of closed cap (5)；On the left of cover (17), top is provided with beating apparatus (1), machine On the right side of lid (17), top is provided with scraper oil cylinder (18), and the left side of cover (17) upper blade oil cylinder (18) is provided with tracheae (19)； Be provided with scraper (16) on the external part of scraper oil cylinder (18), the lower section of scraper (16) is provided with nozzle (15), nozzle (15) with Flexible pipe is connected between tracheae (19), and nozzle (15), scraper (16) are all in rotary drum (2) inner right side and towards the interior of rotary drum (2) Wall；Described beating apparatus (1) include base (101), motor (105), are provided with driving pulley on the output shaft of motor (105) (106), driving pulley (106) is connected with driven pulley (108) by belt (107), and the left side of base (101) is provided with outer tube Body (102), the right side of base (101) are provided with oil cylinder (112), and the piston rod top of oil cylinder (112) is provided with connecting rod (111)； The left side of outer cylinder body (102) is fixed with motor (105), outside the small end of the end cap at outer cylinder body (102) top and driven pulley (108) Seal is provided between circle, outer cylinder body (102) is internally provided with rotary shaft (103), rotary shaft (103) passes through bearing A (109) It is connected with the endoporus of outer cylinder body (102), the upper end of rotary shaft (103) outer ring is connected with driven pulley (108) by key, rotary shaft (103) shaft (104) is internally provided with, and the top of shaft (104) is connected with connecting rod (111) by bearing B (110), stirs The lower end for mixing axle (104) is provided with paddle (113), and paddle (113) is located at rotary drum (2) inside left.

2. a kind of vertical settling type unloading under scraper centrifuge according to claim 1, it is characterised in that：Described rotary drum (2) on inwall, filter bores are not provided with.

3. a kind of vertical settling type unloading under scraper centrifuge according to claim 1, it is characterised in that：Described rotating shaft (103) endoporus top is provided with internal spline, and the cylindrical epimere of shaft (104) is provided with external splines.

4. a kind of vertical settling type unloading under scraper centrifuge according to claim 1, it is characterised in that：Including following behaviour Make step：

1), before centrifuge charging, cylinder (12) starts, and cylinder (12) drives lifting shaft (6) and drives closed cap (5) to move, and closes Close cover (5) to close the endoporus of rotary drum (2) bottom small end, mair motor (14) drives mainshaft driven belt wheel (13) to drive rotary drum (2) Rotate with closed cap (5), reach feed rotation；

2) when, centrifuge feeds, mixed material is added in rotary drum (2), under the influence of centrifugal force, solid-liquid is layered, and liquid phase is led to Cross slash liquid pipe to aspirate away liquid；

3), scraper, rotary drum (2) reduce rotating speed, are rotated with relatively low rotating speed, start scraper oil cylinder (18), will by scraper (16) Solid on rotary drum (2) wall scrapes the bottom of rotary drum (2)；

4), it is beaten, beating liquid is added, starts motor (105), driving pulley (106) drives driven pulley by belt (107) (108) rotate, driven pulley (108) drives shaft (104) to rotate in outer cylinder body (102) by rotary shaft (103), installs Paddle (113) also synchronous rotary therewith in shaft (104) lower end；Start oil cylinder (112), the piston rod of oil cylinder (112) Shaft (104) is driven to make descending motion while rotation by connecting rod (111), the external splines of shaft (104) is in rotating shaft (103) slide downward on internal spline, oil cylinder (112) drive paddle (113) to drop in feed liquid, in the band of motor (105) Under dynamic, shaft (104) drives paddle (113) high-speed rotation stirring, while also entering to strengthen beating resultses scraper (16) Enter in feed liquid, the gas for being passed through high pressure from tracheae 19 is sprayed from nozzle (15) so that feed liquid is sufficiently mixed；

5), beating terminates, and paddle (113) and scraper (16) is risen, rotating speed raising speed, carries out separation of solid and liquid again, same logical Cross slash liquid pipe to aspirate away liquid；

6), discharging, starts cylinder (12) and closed cap (5) is moved upwards so that the material-dropping hole of rotary drum (2) is opened wide, and rotary drum (2) drops The slow-speed of revolution, starts the material-dropping hole that the solid on rotary drum (2) wall is scraped scraper oil cylinder (18) rotary drum (2) by scraper (16) In, and from outside discharge bucket (11) discharge machine.