Anti-blocking single-screw pump

Abstract

The utility model discloses an anti-blocking single-screw pump. The anti-blocking single-screw pump comprises a shell, a feeding port, a discharging port, a screw shaft, a rotary drum and a driving component. The screw shaft is sleeved in the rotary drum, the rotary drum rotates through the driving part, a plurality of groups of water outlet holes are formed in the rotary drum, the water outlet holes are connected with the water tank through pipelines, and the nozzle is mounted on a sleeve lining outside the rotary drum and corresponds to the water outlet holes. In the rotating process of the rotary drum, the screw shaft and the water outlet holes are effectively cleaned through spraying of a cleaning agent, and high-viscosity materials such as concrete are prevented from being blocked in the conveying process. According to the design, cleaning operation is simplified, the equipment dismounting frequency is reduced, the service life of equipment is prolonged, and the device is suitable for conveying high-viscosity particle-containing fluid.

Description

Technical Field

[0001] The utility model relates to the technical field of pumping equipment, in particular to an anti-clogging single-screw pump. Background Art

[0002] Single-screw pumps are a type of mechanical equipment commonly used to transport high-viscosity fluids. Due to their simple structure, good wear resistance, and smooth delivery, they are widely used in industries such as chemical, food, and construction. In the construction industry, single-screw pumps are particularly used to transport high-viscosity fluids containing particles, such as concrete and mortar.

[0003] In actual use, concrete, with its high viscosity, easily adheres to the screw surface. This layer of concrete gradually accumulates as the pump operates, resulting in a thicker layer of concrete on the screw surface, ultimately causing blockage. This blockage not only hinders the proper delivery of concrete but also increases the pump's operating load, shortening the equipment's lifespan and potentially even causing damage. Furthermore, conventional methods for addressing concrete blockages require disassembling the pump body and flushing the screw shaft, a laborious and inconvenient manual process. Repeated disassembly and assembly can also compromise the pump's seal, affecting performance.

[0004] Therefore, how to solve the problem of blockage that easily occurs when a single screw pump is conveying concrete has become a technical problem that urgently needs to be solved in this field. Utility Model Content

[0005] The purpose of the utility model is to provide a blockage-resistant single-screw pump, which can effectively solve the problem that high-viscosity particle-containing fluids such as concrete are prone to blockage during transportation, ensure smooth transportation of materials, and improve equipment operating efficiency and service life.

[0006] The technical solution adopted by the utility model to solve the above problems is: an anti-clogging single-screw pump, comprising a shell, the shell is provided with a feed port and a discharge port, and a screw shaft is rotatably arranged in the shell, the screw shaft is sleeved with a drum between the feed port and the discharge port, the drum is rotatably arranged in the shell and a driving component for driving the drum to rotate is provided on the shell, a plurality of groups of water outlet holes are opened in the circumference of the drum and a sleeve is provided, a plurality of groups of nozzles are arranged on the sleeve, and the nozzles are connected to the water tank through pipelines.

[0007] Preferably, the driving component includes a driving motor, which is rotatably connected to a rotating shaft. The rotating shaft is provided with a pair of driving gears, which mesh with an outer gear ring provided on the outer periphery of the rotating drum for transmission.

[0008] Preferably, the sleeve is provided with a mounting opening for mounting the nozzle, an overflow channel is provided on one side of the mounting opening, a sewage cavity is provided below the sleeve, and one end of the overflow channel is communicated with the sewage cavity.

[0009] Preferably, a drainage trough is obliquely provided at the bottom of the drainage chamber, and a drainage outlet is provided at the bottom of the drainage chamber near the lower part of the drainage trough.

[0010] Preferably, a base is provided below the shell, and the base is provided with a sealing cover opposite to the sewage outlet.

[0011] Preferably, the water outlet holes are staggered and evenly arranged in multiple layers along the axis of the drum, and the nozzles are evenly spaced and aligned with the water outlet holes in each layer.

[0012] Preferably, each layer of the drum is provided with 6 groups of water outlet holes, which are evenly distributed circumferentially and adjacent water outlet holes in each layer form an angle of 60° relative to the center of the drum cross section, and the water outlet holes in adjacent layers are staggered at an angle of 30°.

[0013] Preferably, the feed port is located above the shell, the lower portion of the feed port is connected to the storage cavity in the shell, one end of the storage cavity is connected to the guide channel, one end of the guide channel is connected to the discharge port, and the storage cavity expands outward.

[0014] Compared with the prior art, the present invention has the following advantages and effects:

[0015] This utility model utilizes a rotating drum around the screw shaft, utilizing the interaction between the nozzle and the water outlet to automatically spray detergent and continuously clean the screw shaft, effectively preventing clogging of high-viscosity materials such as concrete. The detergent is pulsed through the nozzle, coordinated with the rotation of the drum, improving flushing efficiency and effectiveness while preventing accumulation of material on the screw shaft surface and within the housing. Furthermore, the design of the drainage chamber and drain tank effectively removes impurities and residues generated during the cleaning process, simplifying the cleaning process and reducing the frequency of manual operations, thereby increasing the delivery efficiency and service life of the single-screw pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of an anti-clogging single-screw pump according to an embodiment of the present utility model.

[0017] Figure 2 This is an embodiment of the utility model Figure 1 Cross-sectional view along line A-A.

[0018] Figure 3 This is an embodiment of the utility model Figure 1 Cross-sectional view of B-B in the figure.

[0019] Figure 4 This is an embodiment of the utility model Figure 1 Cross-sectional view of C-C in the middle.

[0020] Figure numbers: shell 1, feed port 11, discharge port 12, screw shaft 13, drum 14, drive component 15, water outlet 16, sleeve 17, nozzle 18, pipeline 19, water tank 20, drive end 21, drive motor 22, rotating shaft 23, drive gear 24, outer ring gear 25, installation port 31, overflow channel 32, sewage chamber 33, sewage trough 34, sewage outlet 35, base 36, cover 37, storage chamber 41, material guide channel 42. DETAILED DESCRIPTION

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and through examples. The following examples are provided to explain the present invention, but the present invention is not limited to the following examples.

[0022] Example: See Figure 1 - Figure 4 This embodiment relates to a clog-resistant single-screw pump, which is specifically used for conveying high-viscosity fluids containing particulate matter, such as concrete. The pump comprises a housing 1, which is provided with a feed port 11 and a discharge port 12. A screw shaft 13 is rotatably disposed within the housing 1. A drum 14 is sleeved between the feed port 11 and the discharge port 12. The drum 14 is rotatably disposed within the housing 1 and is provided with a drive component 15 for driving the drum 14. The drum 14 is circumferentially formed with a plurality of water outlet holes 16 and sleeved with a bushing 17. The bushing 17 is provided with a plurality of nozzles 18. The nozzles 18 are connected to a water tank 20 via a pipe 19.

[0023] Specifically, in this embodiment, concrete is fed into the feed port 11, conveyed by the screw shaft 13 through rotation, and ultimately discharged from the discharge port 12. When concrete adheres to the screw shaft 13, a cleaning agent is pumped from the water tank 20 into the housing 1 through the nozzle 18. The cleaning agent in this embodiment can be an acidic cleaning agent. The concrete adhered to the screw shaft 13 is softened by the cleaning agent and discharged from the discharge port 12 under the rotation of the screw shaft 13. In this embodiment, the nozzle 18 is located below the rotating drum 14. The rotating drum 14 is rotated by the driving component 15. When the driving component 15 drives the rotating drum 14 to rotate until the water outlet 16 is offset from the nozzle 18, normal concrete conveying can be carried out. Only when the driving component 15 drives the rotating drum 14 to rotate until the water outlet 16 is aligned with the nozzle 18, can the cleaning agent be sprayed through the nozzle 18 and the water outlet 16 toward the screw shaft 13. When the cleaning agent is fully filled, the rotating drum 14 is driven to rotate again, causing the water outlet 16 to rotate to the inner surface of the sleeve 17.

[0024] The utility model realizes opening or closing of the nozzle 18 by rotating the drum 14. On the one hand, it can prevent the nozzle 18 from being blocked during normal concrete delivery. On the other hand, it can achieve relative sealing during the process of soaking the screw shaft 13 with a detergent, avoiding the detergent from flowing back to soak the nozzle 18 and causing corrosion. It can effectively clean the concrete attached to the screw shaft 13 and the housing 1, preventing its further accumulation and causing clogging of the pump body, so that the screw pump is always in a clean state, improving the pump's delivery efficiency and extending the service life of the equipment. At the same time, it also avoids the tedious operation of traditionally disassembling the pump body for cleaning.

[0025] In this embodiment, one end of the screw shaft 13 is provided with a drive end 21 for connection to an external motor shaft. A coupling is mounted on the drive end 21 to connect to the external motor shaft to ensure the rotation of the screw shaft 13. Furthermore, the drive component 15 includes a drive motor 22, which is rotatably connected to a rotating shaft 23. The rotating shaft 23 is provided with a pair of drive gears 24, which mesh with an external ring gear 25 disposed on the outer periphery of the rotating drum 14. The drive motor 22 drives the rotating shaft 23 to rotate, and the meshing of the drive gears 24 with the external ring gear 25 of the rotating drum 14 causes the rotating drum 14 to rotate.

[0026] The sleeve 17 is provided with a mounting opening 31 for mounting the nozzle 18. An overflow channel 32 is provided on one side of the mounting opening 31. A drainage chamber 33 is provided below the sleeve 17, and one end of the overflow channel 32 is connected to the drainage chamber 33. During the transportation of concrete, the water outlet 16 may be blocked by concrete. Therefore, before cleaning the screw shaft 13, the concrete at the water outlet 16 needs to be processed so that the detergent can pass through the water outlet 16. Specifically, the nozzle 18 maintains the detergent spraying state, and the driving component 15 drives the drum 14 to rotate. When the water outlet 16 passes the nozzle 18, the detergent flushes the concrete on it. The flushed detergent is discharged from the overflow channel 32 into the drainage chamber 33, achieving a cleaning effect on the concrete in the water outlet 16. The present invention effectively channels cleaning agents through the overflow channel 32. When the water outlet 16 is clogged, the nozzle 18 can spray the cleaning agent onto the concrete on the water outlet 16 for flushing. The flushed cleaning liquid, along with impurities, is discharged from the overflow channel 32 to the drain chamber 33. The drain chamber 33 is provided with a drain trough 34 at an angle at the bottom to facilitate the natural collection of dirt and blockages. The drain chamber 33 is provided with a drain outlet 35 at the bottom near the lower part of the drain trough 34 for discharging concrete residue accumulated during the cleaning process. In addition, a base 36 is provided below the housing 1. The base 36 is provided with a cover 37 opposite to the drain outlet 35. The drain chamber 33 can temporarily store a certain amount of concrete residue, which can be discharged together after the cover 37 is opened, thereby reducing the operator's operation frequency.

[0027] In this embodiment, the water outlet holes 16 are staggered and evenly arranged in multiple layers along the axis of the rotating drum 14. The nozzles 18 are evenly spaced and aligned with the water outlet holes 16 on each layer. Specifically, while the nozzles 18 continuously spray the detergent, the driving component 15 drives the rotating drum 14 to rotate continuously, causing the water outlet holes 16 and the nozzles 18 on each layer to continuously alternate, and the detergent is sprayed intermittently, forming pulses, which increases the flushing force and flushing effect. In this embodiment, a total of six groups of water outlet holes 16 are provided on each layer of the rotating drum 14. The water outlet holes 16 are evenly distributed circumferentially, and adjacent water outlet holes 16 on each layer form a 60° angle relative to the center of the circular cross-section of the rotating drum 14. The water outlet holes 16 on adjacent layers are staggered at a 30° angle.

[0028] The feed port 11 is located above the shell 1, and the bottom of the feed port 11 is connected to the storage chamber 41 in the shell 1. One end of the storage chamber 41 is connected to the guide channel 42, and one end of the guide channel 42 is connected to the discharge port 12. The storage chamber 41 expands outward, increasing its internal volume, and the guide thread of the screw shaft 13 is also expanded accordingly in the discharge chamber, which can increase the speed at which concrete enters the guide channel 42, improve the overall conveying efficiency of the pump, and reduce the risk of blockage during the feeding process.

[0029] The above contents described in this specification are merely examples of the present invention. Those skilled in the art of the present invention may make various modifications, additions, or substitute similar methods to the specific embodiments described, as long as they do not deviate from the contents of this specification or exceed the scope defined by the claims, and shall fall within the scope of protection of the present invention.

Claims

1. A single screw pump with anti-clogging function, comprising a housing, characterized in that: The shell is provided with a feed port and a discharge port, and a screw shaft is rotatably arranged in the shell. A rotating drum is sleeved on the screw shaft between the feed port and the discharge port. The rotating drum is rotatably arranged in the shell and a driving component for driving the rotating drum is provided on the shell. Several groups of water outlet holes are opened in the circumference of the rotating drum and a sleeve is provided. Several groups of nozzles are arranged on the sleeve, and the nozzles are connected to the water tank through pipelines.

2. The anti-clogging single-screw pump according to claim 1, characterized in that: The driving component includes a driving motor, which is rotatably connected to a rotating shaft. The rotating shaft is provided with a pair of driving gears, which mesh with an outer gear ring provided on the outer periphery of the rotating drum for transmission.

3. The anti-clogging single-screw pump according to claim 1, characterized in that: The sleeve is provided with an installation opening for installing the nozzle, an overflow channel is provided on one side of the installation opening, a sewage cavity is provided below the sleeve, and one end of the overflow channel is communicated with the sewage cavity.

4. The anti-clogging single-screw pump according to claim 3, characterized in that: The bottom of the sewage cavity is provided with a sewage trough at an angle, and a sewage outlet is provided at the bottom of the sewage cavity near the lower part of the sewage trough.

5. The anti-clogging single-screw pump according to claim 4, characterized in that: A base is also provided below the shell, and the base is provided with a sealing cover opposite to the sewage outlet.

6. The anti-clogging single-screw pump according to claim 1, characterized in that: The water outlet holes are staggered and evenly arranged in multiple layers along the axis of the drum, and the nozzles are evenly arranged and aligned with the water outlet holes in each layer.

7. The anti-clogging single-screw pump according to claim 6, characterized in that: There are 6 groups of water outlet holes on each layer of the rotating drum. The water outlet holes are evenly distributed around the circumference and the adjacent water outlet holes on each layer form an angle of 60 degrees relative to the center of the circular cross section of the rotating drum. The water outlet holes of adjacent layers are staggered at an angle of 30 degrees.

8. The anti-clogging single-screw pump according to claim 1, characterized in that: The feed port is located above the shell, and the bottom of the feed port is connected to the storage cavity in the shell. One end of the storage cavity is connected to the material guide channel, and one end of the material guide channel is connected to the discharge port. The storage cavity expands outward.

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