A cleaning device for a screw conveyor

Abstract

The application relates to the technical field of screw conveying mechanisms and relates to a cleaning device of a screw conveying mechanism, which comprises a cylinder body, a spraying assembly and a liquid supply assembly, the spraying assembly comprises a first spraying group and a second spraying group which are communicated with the cylinder body; the first spraying group comprises a plurality of first spraying members which are arranged on the peripheral wall of the cylinder body in a first direction at intervals; the second spraying group comprises a plurality of second spraying members which are arranged on the peripheral wall of the cylinder body in the first direction at intervals; the second spraying members and the first spraying members are arranged on the two sides of a reference plane and are staggered in the first direction; the central line of the projection of the first spraying members in the plane of the first direction and the reference plane form a first included angle alpha; the central line of the projection of the second spraying members in the plane of the first direction and the reference plane form a second included angle beta. The cleaning device does not need manual or complex internal operation, greatly simplifies the regular cleaning process and solves the problem of great cleaning difficulty.

Description

Technical Field

[0001] This utility model relates to the field of screw conveyor technology, and in particular to a cleaning device for a screw conveyor. Background Technology

[0002] In industries such as condiments and brewing, screw conveyors are used to transport materials. However, when using screw conveyors, if the materials being transported are sticky, a large amount of material often adheres to the blades, severely affecting the conveying efficiency. Furthermore, long-term adhesion of the material makes it prone to mold growth. If the material comes into contact with mold or mold falls into the material, it is extremely unsanitary for food production, making it difficult to guarantee food safety. Therefore, regular cleaning of the screw conveyor is usually necessary. However, due to the relatively enclosed nature of the screw mechanism and its limited internal space, cleaning is quite difficult. Utility Model Content

[0003] In order to solve the above-mentioned technical problems, or at least partially solve the above-mentioned technical problems, this application provides a cleaning device for a screw conveyor mechanism, which aims to solve the problem that the cleaning of residual materials in the screw conveyor mechanism is difficult.

[0004] This application provides a cleaning device for a screw conveyor mechanism, comprising:

[0005] A cylindrical body having a first direction and a second direction that are perpendicular to each other; wherein a plane passing through the first direction and perpendicular to the second direction is a reference plane;

[0006] The spraying assembly includes a first spraying group and a second spraying group connected to the cylinder body; wherein, the first spraying group includes a plurality of first spraying elements spaced apart along the first direction on the outer peripheral wall of the top of the cylinder body, and the second spraying group includes a plurality of second spraying elements spaced apart along the first direction on the outer peripheral wall of the top of the cylinder body, the second spraying elements and the first spraying elements are respectively disposed on both sides of the reference plane and are staggered in the first direction; the center line of the projection of the first spraying element in the plane of the first direction forms a first angle α with the reference plane, the first angle α being in the range of 0°<α≤45°, and the center line of the projection of the second spraying element in the plane of the first direction forms a second angle β with the reference plane, the second angle β being in the range of 0°<β≤45°;

[0007] The liquid supply assembly includes a liquid supply pipe disposed outside the cylinder, the liquid supply pipe being connected to the first spray member and the second spray member to provide cleaning medium to the first spray member and the second spray member.

[0008] In one embodiment, the range of the first included angle α is: 15°≤α≤30°.

[0009] In one embodiment, the range of the second included angle β is: 15°≤β≤30°.

[0010] In one embodiment, the liquid supply assembly further includes a connecting pipe, which is located above the spray assembly, and the surface of the liquid supply pipe facing the cylinder has a plurality of water outlets arranged at intervals along the first direction. The first spray member and the second spray member are both connected to their respective opposite water outlets through the connecting pipe.

[0011] In one embodiment, the first spraying element includes a first connector and a first nozzle, one end of the first connector is connected to the connecting pipe, the first nozzle is connected to the other end of the first connector, and the liquid outlet end of the first nozzle communicates with the inside of the cylinder.

[0012] The second spraying component includes a second connector and a second nozzle. One end of the second connector is connected to the connecting pipe, and the second nozzle is connected to the other end of the second connector. The liquid outlet end of the second nozzle communicates with the inside of the cylinder.

[0013] In one embodiment, both the first nozzle and the second nozzle are high-pressure atomizing nozzles, and the spray angle range of both the first nozzle and the second nozzle is 30°-45°.

[0014] In one embodiment, a first fixing seat and a second fixing seat are provided at intervals along the first direction on the outer peripheral wall of the top of the cylinder;

[0015] The first fixed base has a first insertion cavity communicating with the cylinder body. The first connector and the first nozzle are inserted into the first insertion cavity, and a portion of the first connector protrudes outside the first insertion cavity. The liquid outlet end of the first nozzle penetrates the bottom of the first insertion cavity and communicates with the inside of the cylinder body.

[0016] The second fixing seat has a second insertion cavity that communicates with the cylinder body. The second connector and the second nozzle are inserted into the second insertion cavity, and a portion of the second connector protrudes outside the second insertion cavity. The liquid outlet end of the second nozzle passes through the bottom of the second insertion cavity and communicates with the inside of the cylinder body.

[0017] In one embodiment, the cylinder has a feeding section and a discharging section at opposite ends, and both the feeding section and the discharging section are connected to the interior of the cylinder.

[0018] In one embodiment, the liquid supply assembly further includes a control valve and a flow sensor, the control valve and the flow sensor being sequentially connected to the liquid supply pipe.

[0019] In one embodiment, the liquid supply assembly further includes a pressure sensor disposed on the liquid supply pipe for monitoring pressure changes on the liquid supply pipe.

[0020] The technical solutions provided in this application have the following advantages compared with the prior art:

[0021] The first and second spray elements are directly arranged on the outer peripheral wall of the top of the cylinder, and the liquid supply pipe is located outside the cylinder. The cleaning medium is sprayed onto the rotating shaft and blades using only the first and second spray elements, which are connected to the inside of the cylinder. This eliminates the need to occupy additional internal space of the cylinder, effectively reducing the difficulty of cleaning operations caused by limited internal space. At the same time, through the cooperation of the external liquid supply pipe with the first and second spray elements, the cleaning medium can be sprayed directly onto the internal area to be cleaned at a preset angle. This eliminates the need for manual or complex mechanisms to operate inside the cylinder, greatly simplifying the periodic cleaning process and solving the problem of high cleaning difficulty. Attached Figure Description

[0022] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the present invention.

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] In the attached image:

[0025] Figure 1 This is a schematic diagram of the screw conveyor mechanism;

[0026] Figure 2 This is a connection diagram of Embodiment 1 of a cleaning device for a screw conveyor mechanism according to this application;

[0027] Figure 3 This is a structural schematic diagram of a cleaning device for a screw conveyor mechanism according to this application from another perspective;

[0028] Figure 4 This is an exploded schematic diagram of the second fixed seat and the second spraying component in the cleaning device of the screw conveyor mechanism of this application;

[0029] Figure 5 This is a schematic diagram of the structure of a cleaning device according to embodiment 2 of the spiral conveying mechanism of this application.

[0030] Icon labels:

[0031] 10. Cylinder body; 10a. Feeding section; 10b. Discharge section; 20. Drive motor; 30. Feeding assembly; 31. Rotating shaft; 32. Spiral blade; 40. First spray group; 41. First spray element; 411. First connector; 412. First nozzle; 50. Second spray group; 51. Second spray element; 511. Second connector; 512. Second nozzle; 60. Liquid supply assembly; 61. Liquid supply pipe; 61a. Discharge section; 62. Connecting pipe; 70. First fixed seat; 70a. First insertion cavity; 80. Second fixed seat; 80a. Second insertion cavity; 90. Control valve; 100. Flow sensor; 110. Pressure sensor; X, First direction; Y, Second direction; A, Reference plane. Detailed Implementation

[0032] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the orientations or positional relationships indicated by terms such as "front," "rear," "upper," "lower," "left," "right," "longitudinal," "horizontal," "vertical," "horizontal," "top," "bottom," "inner," "outer," "head," and "tail" are based on the orientations or positional relationships shown in the accompanying drawings, and are constructed and operated in a specific orientation. They are only for the convenience of describing this technical solution and do not indicate that the device or component referred to must have a specific orientation; therefore, they should not be construed as limitations on this utility model.

[0033] It should also be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. When an component is referred to as being "on" or "below" another component, the component can be located "directly" or "indirectly" on the other component, or there may be one or more intermediary components. The terms "first," "second," "third," etc., are only for the convenience of describing this technical solution and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first," "second," "third," etc., may explicitly or implicitly include one or more of that feature. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0034] In the following description, specific details such as particular system structures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of the present invention. However, those skilled in the art will understand that the present invention can be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

[0035] In related technologies, Figure 1 This is a schematic diagram of the screw conveyor mechanism. (Refer to...) Figure 1 A screw conveyor is a device used to transport materials to a designated location. It includes a cylinder 10, a feeding assembly 30 located inside the cylinder 10, and a drive motor 20. The feeding assembly 30 includes a rotating shaft 31 and helical blades 32. The rotating shaft 31 is rotatably disposed inside the cylinder 10, and the helical blades 32 are wound around the shaft of the rotating shaft 31 along its axial direction. One end of the rotating shaft 31 extends from one end of the cylinder 10 and is connected to the output shaft of the drive motor 20. Driven by the drive motor 20, the rotating shaft 31 drives the helical blades 32 to rotate, thereby conveying the material from one end of the cylinder 10 to the other and allowing it to flow out from inside the cylinder 10, thus achieving automatic material transport. However, during this process, if the conveyed material is sticky, a large amount of material often adheres to the helical blades 32. Long-term adhesion of the material can easily lead to mold growth. If the material comes into contact with the helical blades or mold falls into the material, it is extremely unsanitary for food production, making it difficult to guarantee food safety. Therefore, the spiral blades 32 and the shaft 31 located inside the cylinder 10 need to be cleaned regularly. However, since the shaft 31 is located inside the cylinder 10, workers need to remove the shaft 31 from inside the cylinder 10 for cleaning, and then put it back in after cleaning. This cleaning method is time-consuming and labor-intensive, leading to reduced production efficiency. To address this, this application provides a cleaning device for a spiral conveyor mechanism, which has a fast cleaning efficiency and can effectively solve the problem of the difficulty in cleaning residual materials inside the current spiral conveyor mechanism.

[0036] The first direction X and the second direction Y in the following embodiments are defined for ease of describing the positional relationship between components, specifically using the cylinder 10 as a reference. Here, the first direction X refers to the axial direction of the cylinder 10 (refer to...). Figure 1 The X direction in the diagram refers to the direction of the cylinder, and the second direction Y refers to the radial direction of the cylinder (see reference). Figure 3 (Y direction in the text). Furthermore, the cleaning medium in this embodiment can be water or a cleaning agent, etc., and is not limited thereto.

[0037] Example 1

[0038] Figure 2This is a connection diagram of Embodiment 1 of a cleaning device for a screw conveyor mechanism according to this application. Please refer to... Figure 2 The cleaning device of the screw conveyor mechanism includes a cylinder 10, a spraying assembly, and a liquid supply assembly 60. The cylinder 10 has a first direction X and a second direction Y that are perpendicular to each other; wherein, the plane passing through the first direction X and perpendicular to the second direction Y is the reference plane A. The liquid supply assembly 60 is used to supply the cleaning medium required for cleaning to the spraying assembly, which then sprays it into the cylinder 10. The high-pressure impact force of the spray can wash away the residual material adhering to the rotating shaft 31, thereby achieving the cleaning purpose. There is no need to remove the rotating shaft 31 from the cylinder 10 for cleaning, making cleaning more convenient.

[0039] Specifically, the spraying assembly includes a first spraying group 40 and a second spraying group 50 connected to the cylinder 10. The first spraying group 40 includes multiple first spraying elements 41 spaced apart along a first direction X on the outer periphery of the top of the cylinder 10, and the second spraying group 50 includes multiple second spraying elements 51 spaced apart along the first direction X on the outer periphery of the top of the cylinder 10. In other words, multiple first spraying elements 41 and second spraying elements 51 connected to the cylinder are spaced apart along the first direction X on the outer periphery of the top of the cylinder 10, allowing the liquid supply assembly 60 to deliver cleaning medium to the first spraying elements 41 and second spraying elements 51. Then, the first spraying elements 41 and second spraying elements 51 jointly spray the rotating shaft 31 and spiral blades 32 inside the cylinder 10, thereby washing away any adhering residual material. This solves the problem of difficult cleaning of residual material inside the spiral conveyor mechanism and also prevents long-term material retention and mold growth, ensuring the cleanliness of the conveying mechanism and meeting the stringent hygiene and safety requirements of the food industry.

[0040] The second spray element 51 and the first spray element 41 are respectively disposed on both sides of the reference plane A and are staggered in the first direction to ensure that the entire interior of the cylinder 10 is covered by spray, thereby increasing the spray area and avoiding large-area overlapping sprays. This achieves the cleaning effect with fewer spray elements. Simultaneously, it allows the cleaning medium to cover more areas inside the cylinder 10, thus comprehensively acting on the adhered residual material and effectively washing away residual material on the blades and the inner wall of the cylinder 10, thereby solving the problem of large amounts of material adhering and difficult to remove.

[0041] Because the blades of the screw conveyor are spirally inclined, the gaps between their surfaces and the inner wall of the cylinder 10 are high-risk areas for material adhesion. If the spray nozzles spray radially, they can only cover the local area directly opposite the cylinder wall, while the sides, backs, and gaps between the blades are prone to forming cleaning blind spots. Therefore, in this embodiment, the center line of the projection of the first spray nozzle 41 in the plane of the first direction X forms a first angle α with the reference plane A, the range of which is 0° < α ≤ 45°. The center line of the projection of the second spray nozzle 51 in the plane of the first direction X forms a second angle β with the reference plane A, the range of which is 0° < β ≤ 30°.

[0042] In other words, the center lines projected onto the first spray member 41 and the second spray member 51 in the first direction X-plane form a first angle α and a second angle β with the reference plane A, respectively. This allows the cleaning medium to be sprayed into the cylinder 10 at a certain angle, enabling the cleaning medium to directly impact the inclined surface, the spiral blades 32, and the cylinder wall. Compared to radial direct spraying, this eliminates cleaning blind spots caused by the spiral blades 32, resulting in better cleaning. Furthermore, the first spray group 40 and the second spray group 50 are staggered and work together with the spray members to spray the cleaning medium into the cylinder 10 at an angle. This ensures that the same axial position within the cylinder 10 is impacted by cleaning media from different circumferential angles, forming a multi-dimensional cross-spray. This creates a flow path for the cleaning medium within the cylinder 10 without dead angles, significantly increasing the overall coverage density and ensuring that every area where material adheres is effectively rinsed.

[0043] Specifically, the liquid supply assembly 60 includes a liquid supply pipe 61 and a connecting pipe 62. The liquid supply pipe 61 is located outside the cylinder 10 and above the spray assembly. The surface of the liquid supply pipe 61 facing the cylinder 10 has multiple water outlets arranged at intervals along the first direction X. The first spray member 41 and the second spray member are both connected to their respective water outlets through the connecting pipe 62, so as to spray the cleaning medium required for cleaning into the cylinder 10. In other words, by arranging the liquid supply pipe 61 outside the cylinder 10 and using the connecting pipe 62 to transport the cleaning medium in the liquid supply pipe 61 to the first spray member 41 and the second spray member, and then spraying it into the cylinder 10 by the first spray member 41 and the second spray member, the delivery of the cleaning medium can be completed without occupying additional space inside the cylinder 10, thus reducing the difficulty of cleaning operations caused by limited internal space.

[0044] It should be noted that the cleaning medium in the supply pipe 61 is pumped from the storage tank to the supply pipe 61 by the action of the power pump. How the power pump is used to pump the cleaning medium to the supply pipe 61 is common knowledge to those skilled in the art and will not be described in detail.

[0045] In summary, the cleaning device for the spiral conveyor mechanism of this application arranges the first spray member 41 and the second spray member directly on the outer peripheral wall of the top of the cylinder 10, and the liquid supply pipe 61 is located outside the cylinder 10. The cleaning medium is sprayed onto the rotating shaft 31 and blades only by the first spray member 41 and the second spray member 51 which are connected to the inside of the cylinder 10. There is no need to occupy additional internal space of the cylinder 10, which can effectively reduce the difficulty of cleaning operation caused by limited internal space. At the same time, through the cooperation of the external liquid supply pipe 61 with the first spray member 41 and the second spray member, the cleaning medium can be sprayed directly onto the internal area to be cleaned through a preset angle. There is no need for manual or complex mechanisms to go deep into the interior for operation, which greatly simplifies the process of regular cleaning and solves the problem of high cleaning difficulty.

[0046] Figure 3 This is a structural schematic diagram of a cleaning device for a screw conveyor mechanism according to this application from another perspective; Figure 4 This is an exploded view of the second fixed seat 80 and the second spraying component in the cleaning device of the screw conveyor mechanism of this application. (Refer to...) Figure 3 and Figure 4 Specifically, the first spraying component 41 includes a first connector 411 and a first nozzle 412. One end of the first connector 411 is connected to the connecting pipe 62, and the first nozzle 412 is connected to the other end of the first connector 411, with the liquid outlet end of the first nozzle 412 communicating with the interior of the cylinder 10. Similarly, the second spraying component includes a second connector 511 and a second nozzle 512. One end of the second connector 511 is connected to the connecting pipe 62, and the second nozzle 512 is connected to the other end of the second connector 511, with the liquid outlet end of the second nozzle 512 communicating with the interior of the cylinder 10.

[0047] It should be noted that since both the first spraying element 41 and the second spraying element 51 use a combination of a connector and a nozzle, they have the same structure. To avoid repetition, this embodiment uses the first spraying element 41 as an example to illustrate the working principle of the cleaning medium being sprayed into the cylinder 10, as follows:

[0048] First, connect the first nozzle 412 to one end of the first connector 411 and connect the liquid outlet end of the first nozzle 412 to the inside of the cylinder 10. At this time, the first nozzle 412 is fixed on the cylinder 10. Then, use the connecting pipe 62 to connect the other end of the first connector 411 to the liquid outlet 61a of the liquid supply pipe 61 so that the cleaning medium in the liquid supply pipe 61 can be passed to the first nozzle 412 and the cleaning medium can be sprayed into the inside of the cylinder 10 using the first nozzle 412.

[0049] For example, the connection between the first nozzle 412 and the first connector 411 and the second nozzle 512 and the second connector 511 can be a detachable connection, such as a threaded connection, a plug-in connection, or a snap-fit ​​connection, so that when the nozzle becomes clogged, worn, or needs to be replaced according to cleaning requirements, disassembly and assembly can be completed without complicated operations, thereby reducing maintenance difficulty.

[0050] For example, the first nozzle 412 and the second nozzle 512 are high-pressure atomizing nozzles, which can atomize the cleaning medium into fine droplets after pressurization. The high pressure characteristic gives the droplets a stronger impact force, which can directly penetrate the adhesion interface between the sticky material and the blade, destroy the material adhesion. In addition, the atomized droplets can increase the contact area with the material, ensuring that the cleaning medium evenly coats the residual material and accelerates its softening and peeling. Compared with the columnar water flow of non-atomizing nozzles, it can more efficiently remove stubborn adhering substances on the blade surface and gaps, thereby effectively solving the problem of large amounts of material adhering and difficult to remove.

[0051] In addition, it should be noted that when the material is pushed by the spiral blades inside the cylinder 10, it mainly moves along the axial direction and the radial pressure is relatively small. Furthermore, both the first nozzle 412 and the second nozzle 512 are high-pressure atomizing nozzles, and the nozzle orifice diameter is much smaller than the material particles. This makes it difficult for the material to flow back into the connecting pipe from the small opening of the nozzle during material conveying. In particular, for viscous materials, they will adhere to the cylinder wall due to surface tension, making it even more difficult for them to seep out through the small opening.

[0052] Furthermore, the range of the first included angle α is: 15°≤α≤30°; the range of the second included angle β is: 15°≤β≤30°. That is to say, if the angle values ​​of the first included angle α and the second included angle β are too small, the nozzle spray direction is close to the radial direction of the cylinder 10. At this time, the normal component of the cleaning medium (perpendicular to the blade surface) is strong, but the tangential component (along the blade surface) is weak, making it difficult to effectively peel off the sticky material on the inclined surface of the blade, and it is easy to form a cleaning blind zone due to the single direction; if the angle values ​​of the first included angle α and the second included angle β are too large, the nozzle spray direction is excessively biased towards the axial direction of the cylinder 10. Although the tangential component increases, the normal component decreases significantly, resulting in insufficient impact force of the cleaning medium on the blade surface, making it difficult to disperse stubborn residual materials. By setting the angles of the first included angle α and the second included angle β within the range of 15°-30°, the impact force of the cleaning medium can retain sufficient normal and tangential components at the same time, thus acting efficiently on viscous materials and covering areas such as the edge of the blade surface and the gap between the cylinder wall, which is beneficial to improving the cleaning effect.

[0053] In one embodiment, the spray angle range of both the first nozzle 412 and the second nozzle 512 is 30°-45°. That is, by combining the staggered layout of the first and second spray groups 50, and by spraying the first nozzle 412 and the second nozzle 512 into the cylinder 10 at a spray angle of 30°-45°, a fan-shaped spray is formed that overlaps with the spray from adjacent nozzles, creating a dense atomized coverage network inside the cylinder 10 without dead angles. This ensures that the front and back surfaces of the blades, the inner wall of the cylinder 10, and the spiral gaps are all fully acted upon by the cleaning medium, preventing incomplete cleaning due to limited internal space.

[0054] In one embodiment, a first fixing seat 70 and a second fixing seat 80 are provided at intervals along a first direction X on the outer peripheral wall of the cylinder 10. The first fixing seat 70 has a first insertion cavity 70a communicating with the cylinder 10. A first connector 411 and a first nozzle 412 are inserted into the first insertion cavity 70a, with a portion of the first connector 411 protruding outside the first insertion cavity 70a. The liquid outlet end of the first nozzle 412 penetrates the bottom of the first insertion cavity 70a and communicates with the interior of the cylinder 10. The second fixing seat 80 has a second insertion cavity 80a communicating with the cylinder 10. A second connector 511 and a second nozzle 512 are inserted into the second insertion cavity 80a, with a portion of the second connector 511 protruding outside the second insertion cavity 80a. The liquid outlet end of the second nozzle 512 penetrates the bottom of the second insertion cavity 80a and communicates with the interior of the cylinder.

[0055] For example, by providing a first fixing seat 70 and a second fixing seat 80 on the outer peripheral wall of the cylinder 10, the first connector 411 and the first nozzle 412 can be inserted into the first insertion cavity 70a of the first fixing seat 70 for fixation, and the second connector 511 and the second nozzle 512 can be inserted into the second insertion cavity 80a of the second fixing seat 80 for fixation. This avoids component displacement caused by the reaction force during high-pressure injection or vibration of the cylinder 10. In addition, the connector and nozzle can be directly inserted and removed from the insertion cavity, and the nozzle can be disassembled without the aid of other tools. This allows the nozzle to be quickly pulled out for deep cleaning or replacement when it is clogged or needs to be replaced.

[0056] In one embodiment, the cylinder 10 has a feed section 10a and a discharge section 10b at opposite ends, both of which are connected to the interior of the cylinder 10. Thus, the material to be conveyed can enter the cylinder 10 through the feed section 10a, and under the action of the rotating shaft 31 driving the spiral blades 32 to rotate, the material is conveyed from the end with the feed section 10a to the end with the discharge section 10b, and finally flows out through the discharge section 10b. Simultaneously, when cleaning the interior of the cylinder 10, opening the discharge section 10b allows the waste liquid to be discharged, preventing the waste liquid from accumulating inside the cylinder 10 and causing secondary pollution to the cleaned area.

[0057] Example 2

[0058] Figure 5 This is a schematic diagram of the structure of a cleaning device for a screw conveyor mechanism according to Embodiment 2 of this application. (Refer to...) Figure 5 Based on Embodiment 1, the liquid supply assembly 60 in this embodiment further includes a control valve 90, a flow sensor 100, and a pressure sensor 110. The control valve 90 and the flow sensor 100 are sequentially disposed on the liquid supply pipe 61, and the pressure sensor 110 is disposed on the liquid supply pipe 61. The pressure sensor 110 is used to monitor pressure changes on the liquid supply pipe 61, the flow sensor 100 is used to measure the flow rate of the incoming cleaning medium, and the control valve 90 is used to control the opening and closing of the liquid supply pipe 61 to achieve automatic start and stop of water supply operation. In addition, in this embodiment, the control valve 90 is specifically a Q681F-16P sanitary pneumatic ball valve, the flow sensor 100 is a FEH610 type flow sensor, and the pressure sensor 110 is a TPFADA type sensor.

[0059] For example, the flow sensor 100 can monitor the flow rate of the cleaning medium entering the supply pipe 61 in real time, and the pressure sensor 110 can synchronously report the pressure changes in the pipe. The combination of the two can accurately reflect the delivery status of the cleaning medium (such as whether the flow rate meets the standard and whether the pressure meets the high-pressure injection requirements). Then, the control valve 90 adjusts the flow rate according to the parameters fed back by the sensor. For example, when the flow rate is too low or the pressure is too high, the control valve 90 adjusts the opening or closing of the supply pipe 61 to ensure that the cleaning medium is always delivered to the nozzle at the preset flow rate and pressure, avoiding unstable cleaning effect due to fluctuations in medium parameters (such as insufficient rinsing force and residual material in some areas).

[0060] Furthermore, during the cleaning process, problems such as nozzle blockage (leading to a sudden increase in pipe pressure), leakage in connecting pipe 62 (leading to a sudden drop in pressure), or insufficient liquid supply (leading to abnormal flow) may occur. In this embodiment, the pressure sensor 110 and flow sensor 100 can quickly capture these abnormal signals and provide feedback to remind operators to perform timely maintenance—for example, a sudden pressure increase can be identified as nozzle blockage, allowing for rapid disassembly and cleaning; a sudden pressure drop can be used to check the sealing of connecting pipe 62. In this way, a "real-time monitoring-abnormality early warning" mechanism can be established, thereby reducing cleaning device failures caused by untimely fault detection and lowering the time cost of equipment downtime maintenance.

[0061] It is understood that the above embodiments only illustrate preferred embodiments of the present utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present utility model patent. It should be noted that for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present utility model, all of which fall within the protection scope of the present utility model. Therefore, all equivalent transformations and modifications made within the scope of the claims of the present utility model should fall within the coverage of the claims of the present utility model.

Claims

1. A cleaning device for a screw conveyor mechanism, characterized in that, include: A cylindrical body having a first direction and a second direction that are perpendicular to each other; wherein a plane passing through the first direction and perpendicular to the second direction is a reference plane; The spraying assembly includes a first spraying group and a second spraying group connected to the cylinder body; wherein, the first spraying group includes a plurality of first spraying elements spaced apart along the first direction on the outer peripheral wall of the top of the cylinder body, and the second spraying group includes a plurality of second spraying elements spaced apart along the first direction on the outer peripheral wall of the top of the cylinder body, the second spraying elements and the first spraying elements are respectively disposed on both sides of the reference plane and are staggered in the first direction; the center line of the projection of the first spraying element in the plane of the first direction forms a first angle α with the reference plane, the first angle α being in the range of 0°<α≤45°, and the center line of the projection of the second spraying element in the plane of the first direction forms a second angle β with the reference plane, the second angle β being in the range of 0°<β≤30°; The liquid supply assembly includes a liquid supply pipe disposed outside the cylinder, the liquid supply pipe being connected to the first spray member and the second spray member to provide cleaning medium to the first spray member and the second spray member.

2. The cleaning device for the screw conveyor mechanism according to claim 1, characterized in that, The range of the first included angle α is: 15°≤α≤30°.

3. The cleaning device for the screw conveyor mechanism according to claim 1, characterized in that, The range of the second included angle β is: 15°≤β≤30°.

4. The cleaning device for the screw conveyor mechanism according to claim 1, characterized in that, The liquid supply assembly further includes a connecting pipe, which is located above the spray assembly. The surface of the liquid supply pipe facing the cylinder has a plurality of water outlets arranged at intervals along the first direction. The first spray member and the second spray member are both connected to their respective opposite water outlets through the connecting pipe.

5. The cleaning device for the screw conveyor mechanism according to claim 4, characterized in that, The first spraying component includes a first connector and a first nozzle. One end of the first connector is connected to the connecting pipe, and the first nozzle is connected to the other end of the first connector. The liquid outlet end of the first nozzle communicates with the inside of the cylinder. The second spraying component includes a second connector and a second nozzle. One end of the second connector is connected to the connecting pipe, and the second nozzle is connected to the other end of the second connector. The liquid outlet end of the second nozzle communicates with the inside of the cylinder.

6. The cleaning device for the screw conveyor mechanism according to claim 5, characterized in that, Both the first nozzle and the second nozzle are high-pressure atomizing nozzles, and the spray angle range of both the first nozzle and the second nozzle is 30°-45°.

7. The cleaning device for the screw conveyor mechanism according to claim 5, characterized in that, A first fixing seat and a second fixing seat are provided at intervals along the first direction on the outer peripheral wall of the top of the cylinder; The first fixed base has a first insertion cavity communicating with the cylinder body. The first connector and the first nozzle are inserted into the first insertion cavity, and a portion of the first connector protrudes outside the first insertion cavity. The liquid outlet end of the first nozzle penetrates the bottom of the first insertion cavity and communicates with the inside of the cylinder body. The second fixing seat has a second insertion cavity that communicates with the cylinder body. The second connector and the second nozzle are inserted into the second insertion cavity, and a portion of the second connector protrudes outside the second insertion cavity. The liquid outlet end of the second nozzle passes through the bottom of the second insertion cavity and communicates with the inside of the cylinder body.

8. The cleaning device for the screw conveyor mechanism according to claim 1, characterized in that, The cylinder has a feeding section and a discharging section at opposite ends, and both the feeding section and the discharging section are connected to the interior of the cylinder.

9. The cleaning device for the screw conveyor mechanism according to claim 1, characterized in that, The liquid supply assembly also includes a control valve and a flow sensor, which are connected sequentially to the liquid supply pipe.

10. The cleaning device for the screw conveyor mechanism according to claim 9, characterized in that, The liquid supply assembly also includes a pressure sensor, which is located on the liquid supply pipe and is used to monitor pressure changes on the liquid supply pipe.

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