Screw conveying mechanism of horizontal screw centrifuge

Abstract

The present invention discloses a screw conveying mechanism of a horizontal screw centrifuge, comprising a base, a shell is arranged at the middle position of the top of the base, a differential is rotatably connected at the middle position of one side of the shell, a drum is fixed on one side of the differential, a second drive motor is arranged on one side of the top of the shell, a second belt shaft is arranged on the output end of the second drive motor and the other side of the differential, a second belt is sleeved on the outer side of two groups of the second belt shafts, a discharge port is opened on one side of the top and bottom of the drum, and a ring rack is arranged on one side of the inner side of the drum. The present invention rotates the second screw rod inside the feed port, and when adding materials, the spiral blades on the second screw rod can quickly push the materials to the inside of the screw shaft, effectively avoiding the blockage of the feed port, and at the same time can reduce manual dredging, reduce labor, and improve work efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of screw conveying mechanisms, in particular to a screw conveying mechanism of a horizontal screw centrifuge. Background Art

[0002] Horizontal spiral unloading sedimentation centrifuge, that is, horizontal sedimentation spiral unloading centrifuge, is composed of a high-speed drum, a spiral pusher with the same rotation direction as the drum and a slightly higher or lower speed than the drum, and a differential. Under the action of the rotating centrifugal force, the solid slag in the original slurry is in the outermost layer and sticks to the inner wall of the drum, and the separated liquid phase is mainly in the middle layer. The solid slag is gradually pushed to the slag discharge port of the small section of the drum by the blades on the spiral pusher for discharge, and the separated liquid phase flows to the large end of the drum and is discharged from the liquid discharge hopper; this cycle is continuous to achieve the purpose of continuous solid-liquid sedimentation separation.

[0003] The current screw conveyor mechanism has certain shortcomings:

[0004] 1. When feeding the spiral conveyor mechanism, since the feed port is in a horizontal state, the material will be blocked inside the feed port. It is necessary to manually clear the blocked material and manually feed a small amount of material, which is time-consuming and reduces working time.

[0005] 2. While the centrifuge is working, the fixed material discharged through the shoe material port needs to be discharged through the discharge port. However, because the material after centrifugation is relatively hard and dry, it is easy to block the discharge port during discharge. If it is not cleaned in time, the material inside the shell cannot be discharged, affecting the centrifugal work;

[0006] 3. At the same time, the clean water from the centrifuge needs to be collected for use, but the existing clean water from the centrifuge may be directly discharged to the outside, and it is impossible to connect the water pipe to guide the clean water from the centrifuge to the location where it needs to be used. At the same time, the water outlet is not convenient for the water pipe to be connected. Summary of the invention

[0007] The object of the present invention is to provide a screw conveying mechanism for a horizontal screw centrifuge to solve the related problems raised in the above background technology.

[0008] To achieve the above object, the present invention provides the following technical solutions: The spiral conveying mechanism of a scroll centrifuge includes a base. At the middle position of the top of the base, there is a housing. At the middle position of one side of the housing, there is a differential rotatably connected. On one side of the differential, there is a fixed drum. On one side of the top of the housing, there is a second driving motor. On the output end of the second driving motor and the other side of the differential, there are second belt shafts. A second belt is sleeved on the outer sides of the two second belt shafts. On one side of the top and bottom of the drum, there are discharge ports. On one side inside the drum, there is an annular rack. At the middle position of the side of the housing away from the differential, there is a feed inlet rotatably connected. On one side of the feed inlet, there is a spiral shaft. Near the differential on one side inside the spiral shaft, there is a second screw rod. On one side of the outer side of the second screw rod, there is a first bevel gear. On one side of the top of the spiral shaft, there is a transmission shaft. At the top and bottom of the transmission shaft, there are a transmission gear and a second bevel gear respectively. On one side of the top of the base near the feed inlet, there is a first driving motor. On the outer side of the output end of the first driving motor and the outer side of the feed inlet, there are belt pulleys. A first belt is sleeved on the outer sides of the two belt pulleys. On one side of the output end of the first driving motor, there is a driving gear. On both sides of the bottom of the base, there are a material promoting mechanism and a connection component respectively.

[0009] Preferably, the material promoting mechanism includes a discharge port, a worm, a driven gear, a worm wheel and a first screw rod. The discharge port is located on one side of the bottom of the housing near the first driving motor. At the top of both ends inside the discharge port, there are first screw rods. At the bottom of one side of the discharge port, there is a worm. On the side of the worm away from the first screw rod, there is a driven gear. At the bottom of the first screw rod, there is a worm wheel.

[0010] Preferably, the connection component includes a water outlet, an internally threaded sleeve, a clamping plate, an inclined block and a bidirectional threaded rod. The water outlet is located on one side of the bottom of the housing away from the first driving motor. At the bottom of both sides inside the water outlet, there are bidirectional threaded rods. On both sides of the outer side of the bidirectional threaded rod, there are internally threaded sleeves. At the bottom of the internally threaded sleeve, there is a clamping plate. At the bottom inside the clamping plate, there is an inclined block.

[0011] Preferably, the clamping plate is in a U shape. At the bottom of the water outlet, there is a flange, and the flange is located inside the two clamping plates.

[0012] Preferably, the second bevel gear is located inside the spiral shaft and meshes with the first bevel gear, and the transmission gear meshes with the annular rack.

[0013] Preferably, the driven gear is located above the driving gear, and the driven gear meshes with the driving gear.

[0014] Preferably, fixed plates are provided at the tops of both ends of the discharge port, and the first spiral rod is connected to the fixed plates via bearings.

[0015] Preferably, the drum is located inside the shell, and the spiral shaft is located inside the drum.

[0016] Preferably, the worm and the worm wheel are located at the same horizontal height, and the worm and the worm wheel are meshed with each other.

[0017] Preferably, a guide block is provided at a middle position of the bottom of the inner part of the shell, and the guide block is located between the material outlet and the water outlet.

[0018] Compared with the prior art, the present invention provides a screw conveying mechanism for a horizontal screw centrifuge, which has the following features:

[0019] Beneficial effects:

[0020] 1. The present invention has a spiral shaft inside the drum, and the spiral shaft drives the transmission shaft to perform circular motion. The transmission shaft drives the transmission gear to move outside the annular rack. Since the annular rack and the transmission gear are meshed with each other, the transmission gear rotates on its own, and the second bevel gear is driven to rotate through the transmission shaft. The second bevel gear drives the second spiral rod to rotate through the first bevel gear, so that the second spiral rod rotates on its own inside the feed port. When adding materials, the spiral blades on the second spiral rod can quickly push the materials into the spiral shaft, effectively avoiding the blockage of the feed port. At the same time, it can reduce manual dredging, reduce labor, and improve work efficiency.

[0021] 2. The present invention utilizes the discharge port to discharge the centrifugal material inside the spiral shaft into the interior of the shell, and then discharges the material from the interior of the shell through the discharge port. At this time, the first driving motor can drive the driving gear to rotate, and the driving gear drives the worm to rotate through the driven gear, and the worm drives the worm wheel and the first spiral rod to rotate. The first spiral rod also discharges the material with a relatively hard texture through the bolt blades to prevent the discharge port from being blocked by the material, which can increase the falling speed of the material and promote the material.

[0022] 3. The present invention installs two sets of clamping plates below the water outlet, which can be contacted and quickly connected with the flange on the external water pipe. The two sets of internal threaded sleeves are brought close to each other under the action of the threads, and the flange on the water pipe is clamped. The inclined block contacts the flange of the water pipe, so that the flange of the water pipe and the flange of the water outlet can be squeezed and connected with each other. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a front cross-sectional view of the present invention;

[0024] Figure 2 is a side cross-sectional view of the present invention;

[0025] Figure 3 For the present invention Figure 1 A magnified view of;

[0026] Figure 4 It is a top cross-sectional view of the material promoting mechanism of the present invention;

[0027] Figure 5 It is a side view of the material promoting mechanism of the present invention;

[0028] Figure 6 It is a front cross-sectional view of the connection assembly of the present invention.

[0029] In the figure: 1. base; 2. material promotion mechanism; 201. discharge port; 202. worm; 203. driven gear; 204. worm wheel; 205. first screw rod; 3. connecting assembly; 301. water outlet; 302. internal threaded sleeve; 303. clamping plate; 304. inclined block; 305. bidirectional threaded rod; 4. housing; 5. first drive motor; 6. first belt; 7. feed port; 8. pulley; 9. discharge port; 10. second screw rod; 11. screw shaft; 12. drum; 13. second drive motor; 14. second belt shaft; 15. second belt; 16. differential; 17. ring rack; 18. transmission shaft; 19. driving gear; 20. first bevel gear; 21. second bevel gear; 22. transmission gear. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] See also Figure 1-6, the present invention provides a technical solution: the spiral conveying mechanism of a horizontal scroll centrifuge, including a base 1. At the middle position of the top of the base 1, a housing 4 is provided. At the middle position of one side of the housing 4, a differential 16 is rotatably connected. On one side of the differential 16, a rotating drum 12 is fixed. On one side of the top of the housing 4, a second driving motor 13 is provided. On the output end of the second driving motor 13 and the other side of the differential 16, second belt shafts 14 are provided. A second belt 15 is sleeved on the outer sides of the two groups of second belt shafts 14. On one side of the top and bottom of the rotating drum 12, discharge ports 9 are opened. On one side of the inner side of the rotating drum 12, an annular rack 17 is provided. At the middle position of the side of the housing 4 away from the differential 16, a feed inlet 7 is rotatably connected. On one side of the feed inlet 7, a spiral shaft 11 is provided. On the side of the inner part of the spiral shaft 11 close to the differential 16, a second spiral rod 10 is provided. On one side of the outer side of the second spiral rod 10, a first bevel gear 20 is provided. On one side of the top of the spiral shaft 11, a transmission shaft 18 is provided. At the top and bottom of the transmission shaft 18, a transmission gear 22 and a second bevel gear 21 are respectively provided. On one side of the top of the base 1 close to the feed inlet 7, a first driving motor 5 is provided. On the outer side of the output end of the first driving motor 5 and the outer side of the feed inlet 7, belt pulleys 8 are provided. A first belt 6 is sleeved on the outer sides of the two groups of belt pulleys 8. On one side of the output end of the first driving motor 5, a driving gear 19 is provided. On both sides of the bottom of the base 1, a material promoting mechanism 2 and a connecting component 3 are respectively provided.

[0032] As a preferred solution of this embodiment: the material promoting mechanism 2 includes a discharge port 201, a worm 202, a driven gear 203, a worm gear 204 and a first spiral rod 205. The discharge port 201 is located on one side of the bottom of the housing 4 close to the first driving motor 5. At the top of both ends inside the discharge port 201, the first spiral rod 205 is provided. At the bottom of one side of the discharge port 201, the worm 202 is provided. On the side of the worm 202 away from the first spiral rod 205, the driven gear 203 is provided. At the bottom of the first spiral rod 205, the worm gear 204 is provided, for the discharge of the outgoing material.

[0033] As a preferred solution of this embodiment: the connecting component 3 includes a water outlet 301, an internally threaded sleeve 302, a clamping plate 303, an inclined block 304 and a bidirectional threaded rod 305. The water outlet 301 is located on one side of the bottom of the housing 4 away from the first driving motor 5. At the bottom of both sides inside the water outlet 301, the bidirectional threaded rod 305 is provided. On both sides of the outer side of the bidirectional threaded rod 305, the internally threaded sleeves 302 are sleeved. At the bottom of the internally threaded sleeve 302, the clamping plate 303 is provided. At the bottom of the inside of the clamping plate 303, the inclined block 304 is provided, which can quickly connect the water pipe and transfer the water to the place where it is needed.

[0034] As a preferred solution of this embodiment: the clamping plate 303 is in a U shape. At the bottom of the water outlet 301, a flange is provided, and the flange is located inside the two groups of clamping plates 303, which can quickly connect the two groups of flanges.

[0035] As a preferred solution of this embodiment: the second bevel gear 21 is located inside the spiral shaft 11 and meshes with the first bevel gear 20, and the transmission gear 22 meshes with the annular rack 17, which can drive the first bevel gear 20 and the second bevel gear 21 to rotate.

[0036] As a preferred solution of this embodiment: the driven gear 203 is located above the driving gear 19, and the driven gear 203 and the driving gear 19 are meshed with each other, and can drive the worm 202 to rotate.

[0037] As a preferred solution of this embodiment: fixed plates are provided at the tops of both ends of the discharge port 201, and the first screw rod 205 is connected to the fixed plates through bearings, so that the first screw rod 205 can rotate stably.

[0038] As a preferred solution of this embodiment: the drum 12 is located inside the housing 4 , and the spiral shaft 11 is located inside the drum 12 .

[0039] As a preferred solution of this embodiment: the worm 202 and the worm wheel 204 are located at the same horizontal height, and the worm 202 and the worm wheel 204 are meshed with each other, so that the first drive motor 5 provides power for the rotation of the worm wheel 204 .

[0040] As a preferred solution of this embodiment: a guide block is provided at the middle position of the bottom of the housing 4, and the guide block is located between the discharge port 201 and the water outlet 301 to separate the separated materials from each other.

[0041] Embodiment 1, as Figure 4-5 As shown, by turning on the first drive motor 5, the feed port 7 and the pulley 8 cooperate with each other to rotate the feed port 7 and the screw shaft 11, and the screw shaft 11 is inside the drum 12. The screw shaft 11 drives the transmission shaft 18 to perform circular motion, and the transmission shaft 18 drives the transmission gear 22 to move on the outside of the annular rack 17. Since the annular rack 17 and the transmission gear 22 are meshed with each other, the transmission gear 22 rotates, and the second bevel gear 21 is driven to rotate through the transmission shaft 18. The second bevel gear 21 drives the second screw rod 10 to rotate through the first bevel gear 20, so that the second screw rod 10 rotates inside the feed port 7. When adding materials, the spiral blades on the second screw rod 10 can quickly push the materials to the inside of the screw shaft 11, which effectively avoids the blockage of the feed port 7. At the same time, it can reduce manual dredging, reduce labor, and improve work efficiency.

[0042] Embodiment 2, as Figure 4-5As shown, first, the flange of the external water pipe is brought into contact with the flange at the bottom of the water outlet 301, and at this time, the bidirectional threaded rod 305 is rotated, and the two groups of internal threaded sleeves 302 are brought close to each other under the action of the threads, so that the two groups of clamping plates 303 slide toward the outside of the two groups of flanges. When the beveled edge of the inclined block 304 contacts the bottom of the flange of the water pipe, it will push the flange of the water pipe to move upward, so that the two groups of flanges are tightly squeezed and connected, and a quick connection is made, so that clean water can be transferred to the required location through the external water pipe.

[0043] Working principle: by turning on the first drive motor 5 to work, the feed port 7 and the pulley 8 cooperate with each other to make the feed port 7 and the screw shaft 11 rotate, the screw shaft 11 is inside the drum 12, the screw shaft 11 drives the transmission shaft 18 to perform circular motion, the transmission shaft 18 drives the transmission gear 22 to move on the outside of the annular rack 17, because the annular rack 17 and the transmission gear 22 are meshed with each other, the transmission gear 22 rotates, and the second bevel gear 21 is driven to rotate through the transmission shaft 18, and the second bevel gear 21 drives the second screw rod 10 to rotate through the first bevel gear 20, so that the second screw rod 10 rotates inside the feed port 7. When adding materials, the spiral blades on the second screw rod 10 can quickly push the materials to the inside of the screw shaft 11, effectively avoiding the blockage of the feed port 7, and at the same time can reduce manual dredging, reduce labor, and improve work efficiency.

[0044] The material centrifuged inside the screw shaft 11 can be discharged into the interior of the housing 4 by means of the discharge port 9, and then discharged from the interior of the housing 4 through the discharge port 201. At this time, the first drive motor 5 can drive the driving gear 19 to rotate, and the driving gear 19 drives the worm 202 to rotate through the driven gear 203, and the worm 202 drives the worm wheel 204 and the first screw rod 205 to rotate. The first screw rod 205 also discharges the material with a relatively hard texture through the bolt blade, preventing the discharge port 201 from being blocked by the material, which can increase the speed of the material falling and promote the material

[0045] By installing two sets of clamping plates 303 below the water outlet 301, a quick contact connection can be made with the flange on the external water pipe. The two sets of internal threaded sleeves 302 are brought close to each other under the action of the threads, and the flange on the water pipe is engaged. The inclined block 304 contacts the flange of the water pipe, so that the flange of the water pipe and the flange of the water outlet 301 can be squeezed and connected with each other.

[0046] Finally, it should be noted that the above content is only used to illustrate the technical solution of the present invention, rather than to limit the scope of protection of the present invention. Simple modifications or equivalent substitutions of the technical solution of the present invention by ordinary technicians in this field do not deviate from the essence and scope of the technical solution of the present invention.

Claims

1. A screw conveying mechanism of a horizontal screw centrifuge, comprising a base (1), characterized in that: A housing (4) is provided at a middle position on the top of the base (1), a differential (16) is rotatably connected at a middle position on one side of the housing (4), a rotating drum (12) is fixed on one side of the differential (16), a second drive motor (13) is provided on one side of the top of the housing (4), a second belt shaft (14) is provided at the output end of the second drive motor (13) and the other side of the differential (16), a second belt (15) is sleeved on the outer sides of two sets of the second belt shafts (14), a discharge port (9) is provided on one side of the top and bottom of the rotating drum (12), a ring rack (17) is provided on one side of the inner side of the rotating drum (12), a feed port (7) is rotatably connected at a middle position on a side of the housing (4) away from the differential (16), a screw shaft (11) is provided on one side of the feed port (7), and the screw shaft (11) is provided on one side of the feed port (7). A second screw rod (10) is arranged on one side of the rotating shaft (11) near the differential (16), a first bevel gear (20) is arranged on one side of the outer side of the second screw rod (10), a transmission shaft (18) is arranged on one side of the top of the screw shaft (11), a transmission gear (22) and a second bevel gear (21) are arranged on the top and bottom of the transmission shaft (18), a first drive motor (5) is arranged on one side of the top of the base (1) near the feed inlet (7), pulleys (8) are arranged on the outer side of the output end of the first drive motor (5) and the outer side of the feed inlet (7), a first belt (6) is sleeved on the outer side of the two groups of pulleys (8), a driving gear (19) is arranged on one side of the output end of the first drive motor (5), and a material promotion mechanism (2) and a connecting component (3) are arranged on both sides of the bottom of the base (1), The second bevel gear (21) is located inside the spiral shaft (11) and meshes with the first bevel gear (20), and the transmission gear (22) meshes with the annular rack (17). Wherein: the rotating drum (12) is located inside the outer shell (4), and the spiral shaft (11) is located inside the rotating drum (12).

2. The screw conveying mechanism of the horizontal screw centrifuge according to claim 1, characterized in that: The material promoting mechanism (2) comprises a material discharge port (201), a worm (202), a driven gear (203), a worm wheel (204) and a first screw rod (205); the material discharge port (201) is located at a side of the bottom of the housing (4) close to the first drive motor (5); the first screw rod (205) is arranged at the top of both ends of the material discharge port (201); the worm (202) is arranged at the bottom of one side of the material discharge port (201); the driven gear (203) is arranged on the side of the worm (202) away from the first screw rod (205); and the worm wheel (204) is arranged at the bottom of the first screw rod (205).

3. The screw conveying mechanism of the horizontal screw centrifuge according to claim 1, characterized in that: The connection assembly (3) comprises a water outlet (301), an internally threaded sleeve (302), a clamping plate (303), an inclined block (304) and a bidirectional threaded rod (305); the water outlet (301) is located at a side of the bottom of the housing (4) away from the first drive motor (5); the bottom of both sides of the water outlet (301) is provided with bidirectional threaded rods (305); the two sides of the outside of the bidirectional threaded rod (305) are sleeved with internally threaded sleeves (302); the bottom of the internally threaded sleeve (302) is provided with a clamping plate (303); and the bottom of the inside of the clamping plate (303) is provided with an inclined block (304).

4. The screw conveying mechanism of the horizontal screw centrifuge according to claim 3, characterized in that: The clamping plate (303) is in a U-shape, and a flange is provided at the bottom of the water outlet (301), and the flange is located inside the two groups of clamping plates (303).

5. The screw conveying mechanism of the horizontal screw centrifuge according to claim 2, characterized in that: The driven gear (203) is located above the driving gear (19), and the driven gear (203) and the driving gear (19) are meshed with each other.

6. The screw conveying mechanism of the horizontal screw centrifuge according to claim 2, characterized in that: Fixed plates are provided at the tops of both ends of the discharge port (201), and the first spiral rod (205) is connected to the fixed plate via a bearing.

7. The screw conveying mechanism of the horizontal screw centrifuge according to claim 2, characterized in that: The worm (202) and the worm wheel (204) are located at the same horizontal height, and the worm (202) and the worm wheel (204) are meshed with each other.

8. The screw conveying mechanism of the horizontal screw centrifuge according to claim 1, characterized in that: A guide block is provided at a middle position of the bottom of the shell (4), and the guide block is located between the material outlet (201) and the water outlet (301).

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