Horizontal spiral pushing centrifugal machine capable of synchronously separating and cleaning

Abstract

The invention relates to a horizontal spiral pushing centrifugal machine capable of synchronously separating and cleaning, which is characterized in that a rotary drum is divided into a separating section and a cleaning section, a spiral pushing barrel is divided into an inner end barrel and an outer end barrel, and solid-liquid mixed materials are separated by the separating section and the inner end barrel; the cleaning section and the outer end barrel are used for cleaning the separated solid-phase material to eliminate residues on the solid-phase material, so that the solid-phase material separated by the horizontal spiral pushing centrifugal machine has no residual liquid-phase material, secondary cleaning and centrifugal separation are not needed, the technological process is greatly simplified, the labor intensity is reduced, and the working efficiency is improved. The material separating and cleaning efficiency is improved, and the production efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of centrifuges, and in particular relates to a horizontal spiral pusher centrifuge capable of performing simultaneous separation and cleaning operations. Background Art

[0002] Horizontal screw pusher centrifuge is often used in the separation process of solid-liquid mixed materials. It has many advantages such as good separation effect, convenient discharge, and sustainable separation. However, it is impossible to clean the material multiple times during the separation process. After the solid phase material is separated from the liquid phase material, there is still a little liquid phase material remaining on the solid phase material that cannot be removed. The separated solid phase material needs to be collected, transferred, cleaned, and separated again to eliminate the liquid phase material remaining on the solid phase material. Obviously, this process is very complicated and requires a lot of time and labor. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a horizontal spiral pusher centrifuge with simultaneous separation and cleaning operations, so as to solve the technical problem that after the traditional horizontal spiral pusher centrifuge separates the solid-liquid mixed material, some liquid phase material still remains on the solid phase material, and the solid phase material needs to be cleaned twice, resulting in a complicated process flow and the need for secondary centrifugal separation.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a horizontal spiral pusher centrifuge for separation and cleaning synchronous operation, comprising a base, a shaft seat fixedly connected to the base, a rotating shaft rotatably connected to the shaft seat and horizontally arranged, a driving motor driving the rotating shaft to rotate, a rotating drum connected to the rotating shaft and rotating synchronously with the rotating shaft, and an outer shell covering the rotating drum, wherein the rotating shaft is a hollow shaft, a central shaft is coaxially arranged at the center of the rotating shaft, the central shaft is rotatably connected to the rotating shaft, one end of the central shaft extends into the rotating drum and is connected to a spiral pusher barrel, the spiral pusher barrel is coaxially arranged with the rotating drum, and spiral blades are arranged on the outer wall of the spiral pusher barrel The other end of the central shaft extends out of the rotating shaft and is connected to the second passive pulley, the end of the rotating shaft away from the drum is connected to the first passive pulley, the output shaft of the driving motor is sequentially connected with the first active pulley and the second active pulley, the first active pulley is connected to the first passive pulley through a belt, the second active pulley is connected to the second passive pulley through a belt, the transmission ratio of the first active pulley and the first passive pulley is different from the transmission ratio of the second active pulley and the second passive pulley, and the driving motor drives the rotating shaft and the central shaft to rotate differentially.

[0005] The rotary drum comprises a coaxially arranged bottom plate, a separation section connected to the bottom plate, and a cleaning section connected to the separation section. The bottom plate is connected to the end of the rotating shaft. The separation section and the cleaning section are both in a cone barrel shape. The large-diameter end of the separation section is fixedly connected to the outer edge of the bottom plate, the small-diameter end of the separation section is connected to the small-diameter end of the cleaning section, the large-diameter end of the cleaning section is in clearance with the liquid blocking plate in the outer shell, an annular separation chamber is formed between the spiral push barrel and the inner wall of the rotary drum, a plurality of drainage holes are circumferentially opened on the bottom plate, the drainage holes communicate with the internal cavity of the outer shell and the separation chamber, the drainage holes are circumferentially arranged on the outer edge of the spiral push barrel, and a large number of filter holes are opened on the side wall of the cleaning section of the rotary drum.

[0006] The spiral pushing cylinder includes an inner end cylinder and an outer end cylinder which are connected to each other. The inner end cylinder is a conical cylinder with a small mouth and a large bottom, and a cloth cavity with a small mouth and a large bottom is arranged inside the inner end cylinder. The bottom of the inner end cylinder is sealed and fixedly connected to the central axis; the outer end cylinder is a conical cylinder with openings at both ends. The small-diameter end of the outer end cylinder is fixedly connected to the mouth of the inner end cylinder, and the large-diameter end of the outer end cylinder extends to the large-diameter end of the cleaning section. The inner end cylinder is opposite to the separation section, and the outer end cylinder is opposite to the cleaning section.

[0007] A feed pipe and a cleaning pipe are connected to the outer shell. The feed pipe extends from the large-diameter end of the outer end tube into the inner end tube. Several feed ports are opened on the side wall of the inner end tube. The feed port is located at the position with the largest inner diameter of the cloth cavity; the cleaning pipe extends from the large-diameter end of the outer end tube into the outer end tube. Several cleaning ports are opened on the side wall of the outer end tube. An annular water baffle is also connected to the inner wall of the outer end tube. The water baffle is located on the side of the cleaning port close to the large-diameter of the outer end tube. The head of the cleaning pipe faces the side wall of the outer end tube and is directly opposite to the cleaning port.

[0008] An annular partition is connected to the inner wall of the shell, the partition is located in the middle of the drum and opposite to the liquid blocking plate, the partition and the liquid blocking plate divide the internal cavity of the shell into three parts, which are a separation liquid collecting chamber corresponding to the separation section, a cleaning liquid collecting chamber corresponding to the cleaning section, and a slag discharge chamber connected to the large-diameter end of the cleaning section. The shell is also provided with a separation liquid discharge pipe connected to the separation liquid collecting chamber, a cleaning liquid discharge pipe connected to the cleaning liquid collecting chamber, and a slag discharge pipe connected to the slag discharge chamber.

[0009] A water blocking ring is connected to the outer wall of the drum, the outer diameter of the water blocking ring is larger than the inner diameter of the partition, and the water blocking ring is arranged in the separation liquid collecting chamber and is close to the partition.

[0010] As a preferred solution, a cover is hingedly connected to the shell, and the cover is directly opposite to the large-diameter end of the cleaning section.

[0011] As a preferred solution, two viewing windows are further provided on the housing, respectively used for observing the separation liquid collecting chamber and the cleaning liquid collecting chamber.

[0012] As a preferred solution, a filter cloth is attached to the inner wall of the cleaning section, and the filter cloth covers all filter holes.

[0013] As a preferred solution, the side wall of the cleaning section and the side wall of the outer end tube are parallel to each other.

[0014] The beneficial effects of the present invention are as follows: the present invention divides the drum into a separation section and a cleaning section, divides the spiral pusher cylinder into an inner end cylinder and an outer end cylinder, utilizes the separation section and the inner end cylinder to separate the solid-liquid mixture, utilizes the cleaning section and the outer end cylinder to clean the separated solid phase material to eliminate the residue on the solid phase material, so that there is no residual liquid phase material on the solid phase material after separation by the horizontal spiral pusher centrifuge of the present invention, and no further cleaning and centrifugal separation are required, which greatly simplifies the process flow, reduces labor intensity, improves the efficiency of material separation and cleaning, and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The specific embodiments of the present invention are further described in detail below with reference to the accompanying drawings, wherein: Figure 1 It is a structural schematic diagram of the horizontal spiral pusher centrifuge of the present invention; Figure 2 It is a schematic diagram of the assembly structure of the rotary drum and the spiral push barrel of the present invention; Figure 1 and Figure 2 In: 1. base; 2. shaft seat; 3. rotating shaft; 4. driving motor; 5. rotating drum; 501. bottom plate; 502. separation section; 503. cleaning section; 6. outer shell; 7. central axis; 8. spiral push cylinder; 801. inner end cylinder; 802. outer end cylinder; 9. spiral blade; 10. first passive pulley; 11. second passive pulley; 12. first active pulley; 13. second active pulley; 14. belt; 15. liquid blocking plate; 16. Separation chamber; 17. Drain hole; 18. Filter hole; 19. Fabric chamber; 20. Feed pipe; 21. Cleaning pipe; 22. Feed port; 23. Cleaning port; 24. Water retaining plate; 25. Partition plate; 26. Separation liquid collecting chamber; 27. Cleaning liquid collecting chamber; 28. Slag discharge chamber; 29. ​​Separation liquid discharge pipe; 30. Cleaning liquid discharge pipe; 31. Slag discharge pipe; 32. Water blocking ring; 33. Cover; 34. Window; 35. Filter cloth. DETAILED DESCRIPTION

[0016] The specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0017] like Figure 1 and Figure 2The horizontal spiral pusher centrifuge for separation and cleaning synchronous operation shown in the figure comprises a base 1, a shaft seat 2 fixedly connected to the base 1, a rotating shaft 3 rotatably connected to the shaft seat 2 and arranged horizontally, a driving motor 4 driving the rotating shaft 3 to rotate, a rotating drum 5 connected to the rotating shaft 3 and rotating synchronously with the rotating shaft 3, and a shell 6 covering the rotating drum 5, wherein the rotating shaft 3 is a hollow shaft, a central shaft 7 is coaxially arranged at the center of the rotating shaft 3, the central shaft 7 is rotatably connected to the rotating shaft 3, one end of the central shaft 7 extends into the rotating drum 5 and is connected to a spiral pusher 8, the spiral pusher 8 is coaxially arranged with the rotating drum 5, a spiral blade 9 is arranged on the outer wall of the spiral pusher 8, and the outer edge of the spiral blade 9 is close to the inner wall of the rotating drum 5 The other end of the central shaft 7 extends out of the rotating shaft 3 and is connected to the second passive pulley 11. The end of the rotating shaft 3 away from the drum 5 is connected to the first passive pulley 10. The output shaft of the driving motor 4 is sequentially connected with a first active pulley 12 and a second active pulley 13. The first active pulley 12 is connected to the first passive pulley 10 through a belt 14, and the second active pulley 13 is connected to the second passive pulley 11 through a belt 14. The transmission ratio of the first active pulley 12 and the first passive pulley 10 is different from the transmission ratio of the second active pulley 13 and the second passive pulley 11. The driving motor 4 drives the rotating shaft 3 and the central shaft 7 to perform differential rotation to realize the pushing function.

[0018] The rotary drum 5 includes a coaxially arranged bottom plate 501, a separation section 502 connected to the bottom plate 501, and a cleaning section 503 connected to the separation section 502. The bottom plate 501 is connected to the end of the rotating shaft 3. The separation section 502 and the cleaning section 503 are both in a cone barrel shape. The large-diameter end of the separation section 502 is fixedly connected to the outer edge of the bottom plate 501, and the small-diameter end of the separation section 502 is connected to the small-diameter end of the cleaning section 503. The large-diameter end of the cleaning section 503 is gap-matched with the liquid blocking plate 15 in the outer shell 6. An annular separation chamber 16 is formed between the spiral push barrel 8 and the inner wall of the rotary drum 5. A plurality of drainage holes 17 are circumferentially opened on the bottom plate 501. The drainage holes 17 communicate with the internal cavity of the outer shell 6 and the separation chamber 16. The drainage holes 17 are circumferentially arranged on the outer edge of the spiral push barrel 8. A large number of filter holes 18 are opened on the side wall of the cleaning section 503 of the rotary drum 5.

[0019] Since the diameter of the port connecting the separation section 502 and the bottom plate 501 is large, the liquid phase material will converge toward the bottom plate 501 when subjected to the centrifugal force, and then be discharged from the drainage hole 17 .

[0020] The spiral pushing cylinder 8 includes an inner end cylinder 801 and an outer end cylinder 802 which are connected to each other. The inner end cylinder 801 is a conical cylinder with a small mouth and a large bottom, and a cloth cavity 19 with a small mouth and a large bottom is arranged inside the inner end cylinder 801. The bottom of the inner end cylinder 801 is sealed and fixedly connected to the central axis 7; the outer end cylinder 802 is a conical cylinder with openings at both ends. The small-diameter end of the outer end cylinder 802 is fixedly connected to the mouth of the inner end cylinder 801, and the large-diameter end of the outer end cylinder 802 extends to the large-diameter end of the cleaning section 503. The inner end cylinder 801 is opposite to the separation section 502, and the outer end cylinder 802 is opposite to the cleaning section 503.

[0021] A feed pipe 20 and a cleaning pipe 21 are connected to the outer shell 6. The feed pipe 20 extends from the large-diameter end of the outer end tube 802 into the inner end tube 801. The side wall of the inner end tube 801 is provided with several feed ports 22, and the feed port 22 is located at the position with the largest inner diameter of the material distribution cavity 19; the cleaning pipe 21 extends from the large-diameter end of the outer end tube 802 into the outer end tube 802. The side wall of the outer end tube 802 is provided with several cleaning ports 23. An annular water baffle 24 is also connected to the inner wall of the outer end tube 802. The water baffle 24 is located on the side of the cleaning port 23 close to the large-diameter side of the outer end tube 802. The head of the cleaning pipe 21 faces the side wall of the outer end tube 802 and is directly opposite to the cleaning port 23.

[0022] An annular partition 25 is connected to the inner wall of the shell 6. The partition 25 is located in the middle of the drum 5 and opposite to the liquid blocking plate 15. The partition 25 and the liquid blocking plate 15 divide the inner cavity of the shell 6 into three parts, which are the separation liquid collection chamber 26 corresponding to the separation section 502, the cleaning liquid collection chamber 27 corresponding to the cleaning section 503, and the slag discharge chamber 28 connected to the large-diameter end of the cleaning section 503. The shell 6 is also provided with a separation liquid discharge pipe 29 connected to the separation liquid collection chamber 26, a cleaning liquid discharge pipe 30 connected to the cleaning liquid collection chamber 27, and a slag discharge pipe 31 connected to the slag discharge chamber 28. A water blocking ring 32 is connected to the outer wall of the drum 5. The outer diameter of the water blocking ring 32 is greater than the inner diameter of the partition 25. The water blocking ring 32 is arranged in the separation liquid collection chamber 26 and is close to the partition 25.

[0023] The water blocking ring 32 and the partition plate 25 prevent the liquid phase material entering the separation liquid collection chamber 26 from entering the cleaning liquid collection chamber 27 to avoid loss of the liquid phase material. The water blocking ring 32 and the liquid blocking plate 15 prevent the cleaning waste liquid entering the cleaning liquid collection chamber 27 from entering the separation liquid collection chamber 26 and the slag discharge chamber 28.

[0024] In this embodiment, a cover 33 is preferably hinged on the outer shell 6 , and the cover 33 is directly opposite to the large-diameter end of the cleaning section 503 . The cover 33 is provided to facilitate cleaning and maintenance of the interior of the outer shell 6 .

[0025] In this embodiment, two viewing windows 34 are preferably provided on the housing 6 , which are used to observe the separation liquid collecting chamber 26 and the cleaning liquid collecting chamber 27 , respectively.

[0026] In this embodiment, a filter cloth 35 is attached to the inner wall of the cleaning section 503 . The filter cloth 35 covers all the filter holes 18 . The filter cloth 35 can block the solid phase material from passing through the filter holes 18 and also prevent the solid phase material from blocking the filter holes 18 .

[0027] In this embodiment, the side wall of the cleaning section 503 and the side wall of the outer end tube 802 are parallel to each other, so that the solid phase material can be smoothly pushed into the slag discharge chamber 28.

[0028] The working process of the present invention is: Figure 1 and Figure 2 As shown, after the user starts the horizontal screw pusher centrifuge, the solid-liquid mixture is charged into the distribution chamber 19 through the feed pipe 20. The solid-liquid mixture enters the separation chamber 16 from the feed port under the centrifugal force in the distribution chamber 19. The solid phase material is pressed against the inner wall of the separation section 502 of the drum 5 by the centrifugal force, and the liquid phase material is located inside the solid phase material and flows toward the large-diameter end of the separation section 502, and finally discharged into the separation liquid collection chamber 26 through the drainage hole 17. The solid phase material moves to the cleaning section 503 of the drum 5 under the driving action of the screw pusher 8 and the spiral blade 9.

[0029] At the same time, the user injects cleaning liquid into the outer end tube 802 through the cleaning pipe 21, and the cleaning liquid enters the separation chamber 16 between the cleaning section 503 and the outer end tube 802 through the cleaning port, and performs infiltration cleaning on the solid phase material moved between the cleaning section 503 and the outer end tube 802. Since the filter holes 18 are provided on the side wall of the cleaning section 503, the cleaning liquid penetrates the solid phase material and enters the cleaning liquid collecting chamber 27 from the filter holes 18. After the solid phase material is cleaned, it is continuously pushed by the spiral pushing barrel 8 and the spiral blades 9 and separates from the drum 5 from the large-diameter end of the cleaning section 503 and enters the slag discharge chamber 28.

[0030] The user collects liquid materials through the separation liquid discharge pipe 29 , collects cleaning waste liquid through the cleaning liquid discharge pipe 30 , and collects solid materials through the slag discharge pipe 31 .

[0031] The above embodiments are only illustrative of the principles and effects of the invention, as well as some embodiments of its application, and are not intended to limit the invention. It should be pointed out that a person skilled in the art can make several modifications and improvements without departing from the inventive concept of the invention, and all of these belong to the protection scope of the invention.

Claims

1. A horizontal spiral pusher centrifuge for separation and cleaning synchronous operation, comprising a base (1), a shaft seat (2) fixedly connected to the base (1), a rotating shaft (3) rotatably connected to the shaft seat (2) and arranged horizontally, a driving motor (4) driving the rotating shaft (3) to rotate, a rotating drum (5) connected to the rotating shaft (3) and rotating synchronously with the rotating shaft (3), and a housing (6) covering the rotating drum (5), characterized in that: The rotating shaft (3) is a hollow shaft. A central shaft (7) is coaxially arranged at the center of the rotating shaft (3). The central shaft (7) is rotatably connected to the rotating shaft (3). One end of the central shaft (7) extends into the rotating drum (5) and is connected to a spiral push barrel (8). The spiral push barrel (8) is coaxially arranged with the rotating drum (5). A spiral blade (9) is arranged on the outer wall of the spiral push barrel (8). The other end of the central shaft (7) extends out of the rotating shaft (3) and is connected to a second passive pulley (11). The end of the rotating shaft (3) away from the rotating drum (5) is connected to a first passive pulley (10). The output shaft of the motor (4) is sequentially connected with a first driving pulley (12) and a second driving pulley (13); the first driving pulley (12) is connected to the first passive pulley (10) through a belt (14); the second driving pulley (13) is connected to the second passive pulley (11) through a belt (14); the transmission ratio of the first driving pulley (12) and the first passive pulley (10) is different from the transmission ratio of the second driving pulley (13) and the second passive pulley (11); the driving motor (4) drives the rotating shaft (3) and the central shaft (7) to perform differential rotation; The rotating drum (5) comprises a coaxially arranged bottom plate (501), a separation section (502) connected to the bottom plate (501), and a cleaning section (503) connected to the separation section (502); the bottom plate (501) is connected to the end of the rotating shaft (3); the separation section (502) and the cleaning section (503) are both in a cone barrel shape; a large-diameter end of the separation section (502) is fixedly connected to the outer edge of the bottom plate (501); a small-diameter end of the separation section (502) is connected to a small-diameter end of the cleaning section (503); and the cleaning section (503) is connected to the bottom plate (501). One end of the large-diameter portion of the spiral pusher (503) is clearance-matched with the liquid blocking plate (15) in the outer shell (6); an annular separation chamber (16) is formed between the spiral pusher (8) and the inner wall of the drum (5); a plurality of drainage holes (17) are circumferentially provided on the bottom plate (501); the drainage holes (17) communicate with the inner cavity of the outer shell (6) and the separation chamber (16); the drainage holes (17) are circumferentially arranged on the outer edge of the spiral pusher (8); and a large number of filter holes (18) are provided on the side wall of the cleaning section (503) of the drum (5); The spiral push cylinder (8) comprises an inner end cylinder (801) and an outer end cylinder (802) which are connected to each other. The inner end cylinder (801) is a conical cylinder with a small opening and a large bottom, and a material distribution cavity (19) is arranged inside the inner end cylinder (801). The bottom of the inner end cylinder (801) is sealed and fixedly connected to the central shaft (7). The outer end cylinder (802) is a conical cylinder with two openings at both ends. The small-diameter end of the outer end cylinder (802) is fixedly connected to the opening of the inner end cylinder (801), and the large-diameter end of the outer end cylinder (802) extends to the large-diameter end of the cleaning section (503). The inner end cylinder (801) is opposite to the separation section (502), and the outer end cylinder (802) is opposite to the cleaning section (503). The outer shell (6) is connected to a feed pipe (20) and a cleaning pipe (21). The feed pipe (20) extends from the large-diameter end of the outer end tube (802) into the inner end tube (801). The side wall of the inner end tube (801) is provided with a plurality of feed ports (22). The feed ports (22) are located at the position where the inner diameter of the material distributing chamber (19) is the largest. The cleaning pipe (21) extends from the large-diameter end of the outer end tube (802) into the outer end tube (802). The side wall of the outer end tube (802) is provided with a plurality of cleaning ports (23). The inner wall of the outer end tube (802) is also connected to an annular water baffle (24). The water baffle (24) is located on the side of the cleaning port (23) close to the large-diameter side of the outer end tube (802). The head of the cleaning pipe (21) faces the side wall of the outer end tube (802) and is directly opposite to the cleaning port (23). An annular partition (25) is connected to the inner wall of the shell (6). The partition (25) is located in the middle of the drum (5) and is opposite to the liquid blocking plate (15). The partition (25) and the liquid blocking plate (15) divide the internal cavity of the shell (6) into three parts, namely, a separation liquid collection chamber (26) corresponding to the separation section (502), a cleaning liquid collection chamber (27) corresponding to the cleaning section (503), and a slag discharge chamber (28) connected to the large-diameter end of the cleaning section (503). The shell (6) is also provided with a separation liquid discharge pipe (29) connected to the separation liquid collection chamber (26), a cleaning liquid discharge pipe (30) connected to the cleaning liquid collection chamber (27), and a slag discharge pipe (31) connected to the slag discharge chamber (28); A water blocking ring (32) is connected to the outer wall of the drum (5); the outer diameter of the water blocking ring (32) is greater than the inner diameter of the partition (25); the water blocking ring (32) is arranged in the separation liquid collection chamber (26) and is adjacent to the partition (25).

2. The horizontal spiral pusher centrifuge according to claim 1, characterized in that: The housing (6) is also hinged with a cover (33), which is directly opposite to the large-diameter end of the cleaning section (503).

3. The horizontal spiral pusher centrifuge according to claim 1, characterized in that: The housing (6) is also provided with two viewing windows (34), which are used to observe the separation liquid collection chamber (26) and the cleaning liquid collection chamber (27), respectively.

4. The horizontal spiral pusher centrifuge according to claim 1, characterized in that: A filter cloth (35) is attached to the inner wall of the cleaning section (503), and the filter cloth (35) covers all the filter holes (18).

5. The horizontal spiral pusher centrifuge according to claim 1, characterized in that: The side wall of the cleaning section (503) and the side wall of the outer end tube (802) are parallel to each other.

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