Cleaning mechanism of horizontal screw centrifuge

Abstract

The utility model relates to the technical field of automatic cleaning devices of horizontal screw centrifuges, in particular to a cleaning mechanism of a horizontal screw centrifuge, which comprises a centrifuge body and a rotary drum. A water tank is fixedly connected to the outer wall of the centrifugal machine body, a mixing mechanism is arranged in the water tank, a water pump is arranged at one end of the water tank, the water inlet end of the water pump communicates with an extraction pipe, one end of the extraction pipe extends into the water tank, the water outlet end of the water pump communicates with a hose, and the rotary drum is arranged in the centrifugal machine body. The stirring rod is driven by the motor to mix a sludge cleaning agent and water, the sludge cleaning agent and water are conveyed to a separation part in the rotary drum, the connecting nozzle is detached after conveying, the rotary drum is driven by the centrifugal machine body, cleaning liquid in the rotary drum cleans mud in the rotary drum, and the traditional mode of detaching and cleaning the rotary drum is changed. And meanwhile, water and the cleaning agent are mixed, so that the rotary drum is better cleaned.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic cleaning devices for horizontal screw centrifuges, in particular to a cleaning mechanism for horizontal screw centrifuges. Background Art

[0002] Horizontal screw centrifuge is a horizontal screw unloading, continuously operated sedimentation equipment. The drum and the screw rotate at high speed in the same direction with a certain differential speed. The material is continuously introduced into the inner cylinder of the feeding screw from the feed pipe, and enters the drum after acceleration. Under the action of the centrifugal field, the heavier solid phase is deposited on the drum wall to form a sediment layer. The feeding screw continuously pushes the deposited solid phase to the cone end of the drum and is discharged from the machine through the slag discharge port. The lighter liquid phase forms an inner liquid ring, which continuously overflows the drum from the overflow port at the large end of the drum and is discharged from the machine through the liquid discharge port.

[0003] During the downtime of the current decanter centrifuge, sludge will adhere to the loading drum. During the next startup, the drum will be damaged due to uneven stress, so it must be cleaned in advance. However, the existing decanter centrifuge cleaning method is to disassemble the internal separation device and manually wash it externally, which wastes time and consumes a lot of labor. Utility Model Content

[0004] The utility model aims to provide a cleaning mechanism for a horizontal screw centrifuge, so as to solve the problem in the background technology that the existing horizontal screw centrifuge cleaning is to dismantle the internal separation device for external manual flushing, and the disassembly process wastes time and consumes a lot of labor.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: comprising a centrifuge body and a drum; the outer wall of the centrifuge body is fixedly connected to a water tank, a mixing mechanism is arranged inside the water tank, a water pump is arranged at one end of the water tank, a water inlet end of the water pump is connected to an extraction pipe, one end of the extraction pipe extends into the water tank, a water outlet end of the water pump is connected to a hose, the drum is arranged inside the centrifuge body, one end of the drum is connected to a water inlet pipe, one end of the water inlet pipe extends outward through the centrifuge body, a connecting nozzle is arranged at the other end of the hose, and the connecting nozzle is butt-connected to one end of the water inlet pipe.

[0006] Preferably, the mixing mechanism comprises a motor and a stirring rod, the motor is fixedly connected to the outer wall of the water tank, and the output end of the motor extends into the interior of the water tank and is fixedly connected to the stirring rod.

[0007] Preferably, a water filling nozzle is provided on the top of the water tank, a transparent observation port is provided on the outer wall of the water tank, and a placement box is provided on the outer wall of the centrifuge body.

[0008] Preferably, the water outlet end of the connecting nozzle is inserted into the inside of the water inlet pipe, a fixing block is inserted into the inner wall of the connecting nozzle, a spring is arranged inside the connecting nozzle, one end of the spring is fixedly connected to the fixing block, and one end of the fixing block is inserted into the outer wall of the water inlet pipe.

[0009] Preferably, a fixing hole matching the fixing block is formed on the outer wall of the water inlet pipe, one end of the fixing block is plugged into the fixing hole, and the plug-in end of the fixing block is elliptical.

[0010] Preferably, a guide block is fixedly connected to the outer wall of the fixing block, a guide groove matching the guide block is provided inside the connecting nozzle, and one end of the guide block is inserted into the guide groove.

[0011] Compared with the prior art, the utility model has the following beneficial effects: the sludge cleaning agent and water are mixed by a stirring rod driven by a motor and transported to a separation position in the drum; after transportation, the connecting nozzle is disassembled, the drum is driven by the centrifuge body, and the cleaning liquid cleans the dirt in the drum inside the drum, thus changing the previous method of disassembling and cleaning the drum, reducing labor, and utilizing the mixture of water and cleaning agent to better clean the drum. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model from top view;

[0014] Figure 3 This is a schematic diagram of the cross-sectional structure of the connection nozzle and the water inlet pipe of the utility model;

[0015] Figure 4 For this utility model Figure 2 Schematic diagram of the enlarged structure of A in .

[0016] In the figure: 1. centrifuge body; 2. water inlet pipe; 3. water tank; 4. mixing mechanism; 41. motor; 42. stirring rod; 5. water adding nozzle; 6. water pump; 61. extraction pipe; 7. hose; 8. connecting nozzle; 9. transparent observation port; 10. drum; 11. fixing hole; 12. placement box; 81. fixing block; 82. spring; 83. guide block; 84. guide groove. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the implementation regulations described are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] Example

[0019] See also Figure 1-4 , as shown in the figure: This embodiment is a preferred implementation scheme in the present technical scheme, a horizontal screw centrifuge cleaning mechanism, comprising a centrifuge body 1 and a drum 10; a water tank 3 is fixedly connected to the outer wall of the centrifuge body 1, a mixing mechanism 4 is arranged inside the water tank 3, a water pump 6 is arranged at one end of the water tank 3, a water inlet end of the water pump 6 is connected to an extraction pipe 61, one end of the extraction pipe 61 extends to the inside of the water tank 3, a water outlet end of the water pump 6 is connected to a hose 7, the drum 10 is arranged inside the centrifuge body 1, one end of the drum 10 is connected to a water inlet pipe 2, one end of the water inlet pipe 2 extends outward through the centrifuge body 1, a connecting nozzle 8 is arranged at the other end of the hose 7, and the connecting nozzle 8 is connected to one end of the water inlet pipe 2.

[0020] like Figure 1 , 2 As shown, the mixing mechanism 4 includes a motor 41 and a stirring rod 42. The motor 41 is fixedly connected to the outer wall of the water tank 3, and the output end of the motor 41 extends into the water tank 3 and is fixedly connected to the stirring rod 42. The motor 41 is connected to a power source to drive the stirring rod 42 to rotate, thereby stirring and mixing the liquid inside the water tank 3.

[0021] like Figure 1 , 2 As shown, a water adding nozzle 5 is provided on the top of the water tank 3, a transparent observation port 9 is provided on the outer wall of the water tank 3, and a placement box 12 is provided on the outer wall of the centrifuge body 1. The water adding nozzle 5 provided on the top of the water tank 3 is used to add sludge cleaning agent and water.

[0022] like Figure 2 , 4 As shown, the water outlet end of the connecting nozzle 8 is inserted into the inside of the water inlet pipe 2, a fixing block 81 is inserted into the inner wall of the connecting nozzle 8, a spring 82 is arranged inside the connecting nozzle 8, one end of the spring 82 is fixedly connected to the fixing block 81, one end of the fixing block 81 is inserted into the outer wall of the water inlet pipe 2, through the fixing block 81 inserted into the inner wall of the connecting nozzle 8, when the connecting nozzle 8 is sleeved on the water inlet pipe 2, the fixing block 81 contacts and squeezes the outer wall of the water inlet pipe 2, so that the fixing block 81 moves toward the inside of the connecting nozzle 8, and the spring 82 fixedly connected to one end of the fixing block 81 is squeezed together, and when the connecting nozzle 8 and the water inlet pipe 2 are docked together, the fixing block 81 is inserted into the inside of the water inlet pipe 2.

[0023] like Figure 2 , 3 As shown, a fixing hole 11 matching with the fixing block 81 is formed on the outer wall of the water inlet pipe 2, one end of the fixing block 81 is plugged into the fixing hole 11, and the plugging end of the fixing block 81 is oval.

[0024] like Figure 4As shown, a guide block 83 is fixedly connected to the outer wall of the fixed block 81, and a guide groove 84 matching the guide block 83 is opened inside the connecting nozzle 8, one end of the guide block 83 is inserted into the guide groove 84, and the guide block 83 provided on the outer wall of the fixed block 81 is inserted into the guide groove 84 starting from the inside of the connecting nozzle 8, which is used to limit the movement of the fixed block 81.

[0025] In this embodiment, firstly, the various parts are installed. When the drum 10 inside the centrifuge needs to be cleaned, sludge cleaning agent is added to the water tank 3, and the power supply is connected through the motor 41 to drive the stirring rod 42 to rotate so that the sludge cleaning agent is mixed with water. The connecting nozzle 8 is sleeved on one end of the water inlet pipe 2, and the water outlet end of the connecting nozzle 8 is plugged into the inside of the water inlet pipe 2. The mixed cleaning liquid is extracted by the water pump 6, and the liquid is transported to the connecting nozzle 8 through the connected hose 7, and then transported to the separation part in the drum 10 through the water inlet pipe 2. After transportation, the connecting nozzle 8 is disassembled, and the drum 10 is driven by the centrifuge body 1. The cleaning liquid cleans the soil in the drum 10 inside the drum 10. Finally, the cleaned waste water is discharged through the discharge end of the centrifuge body 1, which changes the previous method of disassembling and cleaning the drum 10.

Claims

1. A cleaning mechanism for a horizontal screw centrifuge, comprising a centrifuge body (1) and a rotating drum (10); characterized in that: The outer wall of the centrifuge body (1) is fixedly connected to a water tank (3), a mixing mechanism (4) is arranged inside the water tank (3), a water pump (6) is arranged at one end of the water tank (3), a water inlet end of the water pump (6) is connected to an extraction pipe (61), one end of the extraction pipe (61) extends into the water tank (3), a water outlet end of the water pump (6) is connected to a hose (7), the drum (10) is arranged inside the centrifuge body (1), one end of the drum (10) is connected to a water inlet pipe (2), one end of the water inlet pipe (2) extends outward through the centrifuge body (1), and a connecting nozzle (8) is arranged at the other end of the hose (7), and the connecting nozzle (8) is butt-connected and connected to one end of the water inlet pipe (2).

2. A cleaning mechanism for a horizontal screw centrifuge according to claim 1, characterized in that: The mixing mechanism (4) comprises a motor (41) and a stirring rod (42); the motor (41) is fixedly connected to the outer wall of the water tank (3); and the output end of the motor (41) extends into the interior of the water tank (3) and is fixedly connected to the stirring rod (42).

3. A cleaning mechanism for a horizontal screw centrifuge according to claim 1, characterized in that: The top of the water tank (3) is provided with a water filling nozzle (5), the outer wall of the water tank (3) is provided with a transparent observation port (9), and the outer wall of the centrifuge body (1) is provided with a placement box (12).

4. A cleaning mechanism for a horizontal screw centrifuge according to claim 1, characterized in that: The water outlet end of the connecting nozzle (8) is inserted into the interior of the water inlet pipe (2), a fixing block (81) is inserted into the inner wall of the connecting nozzle (8), a spring (82) is arranged inside the connecting nozzle (8), one end of the spring (82) is fixedly connected to the fixing block (81), and one end of the fixing block (81) is inserted into the outer wall of the water inlet pipe (2).

5. A cleaning mechanism for a horizontal screw centrifuge according to claim 1, characterized in that: The outer wall of the water inlet pipe (2) is provided with a fixing hole (11) matching with the fixing block (81), one end of the fixing block (81) is plugged into the fixing hole (11), and the plugging end of the fixing block (81) is elliptical.

6. A cleaning mechanism for a horizontal screw centrifuge according to claim 4, characterized in that: The outer wall of the fixing block (81) is fixedly connected with a guide block (83); a guide groove (84) matching the guide block (83) is provided inside the connecting nozzle (8); one end of the guide block (83) is inserted into the guide groove (84).

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