Reaction kettle capable of being automatically cleaned and liquid product production line

Abstract

The invention relates to the technical field of liquid product production equipment, and provides a reaction kettle capable of being automatically cleaned and a liquid product production line, the reaction kettle capable of being automatically cleaned comprises a kettle body and further comprises a stirring rod, and the stirring rod is rotationally connected to the interior of the kettle body; the stirring fan blades are connected with the stirring rod, the stirring fan blades are arranged in the radial direction of the stirring rod, and at least two stirring fan blades are arranged in the length direction of the stirring rod at intervals; the fan-shaped nozzle is connected to one end, far away from the stirring rod, of the stirring fan blade, the water spraying direction of the fan-shaped nozzle points to the inner side wall of the kettle body, and the water spraying width direction of the fan-shaped nozzle is arranged along the length direction of the stirring rod; the water pump is communicated with the fan-shaped nozzle through a liquid pipeline, and the liquid pipeline comprises at least one rotary joint. The technical problems that after an existing reaction kettle completes product preparation, residues are left in the kettle body, workers need to enter the kettle body for cleaning, the cleaning efficiency is low, and certain safety risks exist can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of liquid product production equipment, and in particular to an automatically cleanable reaction kettle and a liquid product production line. Background Art

[0002] In the production and preparation of liquid products, such as glue and lubricating oil, a reactor is a commonly used equipment, which generally includes a reactor body for containing liquid, a feed inlet for adding raw materials is opened on the top of the reactor body, and a discharge port for pouring out the product is opened at the bottom of the reactor body; in order to promote the full reaction and fusion of the various components of the liquid product, a stirring rod is often rotatably connected inside the reactor, and a stirring fan blade is connected to the stirring rod. The length of the stirring fan blade is set along the radial direction of the stirring rod, and can rotate with the stirring rod in the reactor body and stir the liquid.

[0003] However, after the preparation of the liquid product is completed, there will often be liquid product residue on the inner wall of the kettle body, and the inside of the kettle body needs to be cleaned before the next round of liquid product preparation; the existing cleaning method is to manually enter the kettle body to clean the inner wall of the kettle body, which not only has low cleaning efficiency, but also has certain safety risks.

[0004] Although there are some automatic cleaning devices for reactors in the prior art, they often use a rotating brush or scraper to clean the inner wall of the reactor. For example, a reactor automatic cleaning device disclosed in publication number CN219765292U uses a cleaning disc with bristles to clean the reactor. However, if the inner wall of the reactor is to be completely cleaned, the brush and scraper need to have a considerable volume, which will occupy a large amount of internal space of the reactor body, thereby resulting in a decrease in the output of liquid products and a decrease in economic benefits. On the other hand, for a reactor body with a complex inner wall shape, such as a reactor body with internal components such as a heat exchange coil and a sensor bracket, it is difficult for the brush and scraper to accurately fit the inner wall of the reactor body, so the cleaning effect is also poor. In addition, the cleaning process of the brush and scraper is essentially to transfer the residue from the inner wall of the reactor body to the brush or scraper. Therefore, after completing the cleaning operation of the inner wall of the reactor body, it is necessary to send staff to enter the reactor body to clean or replace the brush or scraper, and it is still impossible to completely get rid of the manual operation in the reactor. Therefore, it is urgent to develop a new type of reactor that can be automatically cleaned. Summary of the invention

[0005] The purpose of the present invention is to overcome the technical problems that in the existing reactor, residues will remain inside the reactor body after product preparation is completed, manual entry is required to clean the reactor body, the cleaning efficiency is low and there are certain safety risks, and to provide a reactor and liquid product production line that can be automatically cleaned.

[0006] In a first aspect, the present invention provides an automatically cleanable reaction kettle, comprising a kettle body, and further comprising: A stirring rod, the stirring rod is rotatably connected to the inside of the kettle; A stirring blade, the stirring blade is connected to the stirring rod, the stirring blade is arranged along the radial direction of the stirring rod, and at least two stirring blades are arranged at intervals along the length direction of the stirring rod; A fan-shaped nozzle is connected to the end of the stirring blade away from the stirring rod, the water spraying direction of the fan-shaped nozzle is directed to the inner wall of the kettle body, and the width direction of the water spraying of the fan-shaped nozzle is set along the length direction of the stirring rod; A water pump is connected to the fan-shaped nozzle through a liquid pipeline, and the liquid pipeline includes at least one rotary joint.

[0007] In this solution, a fan-shaped nozzle is arranged at the end of the stirring blade, and the fan-shaped nozzle is connected to the water pump. When the water pump is started, a fan-shaped water flow can be sprayed out; and when the stirring blade rotates along with the stirring rod, the fan-shaped nozzle will rotate together with it in the kettle body, so that the fan-shaped water flow forms a cylindrical cleaning area, the diameter of the cylinder matches the diameter of the kettle body, and the height of the cylinder matches the length of the intersection line of the fan-shaped water flow and the inner wall of the kettle body, so that various parts of the inner wall of the kettle body located in the cleaning area can be flushed to complete the cleaning of the residue on the inner wall of the kettle body; and the rotary joint can prevent the liquid pipeline from being tangled due to the rotation of the stirring rod.

[0008] And because the present solution adopts a water flushing cleaning method, the water pump that provides pressure for the water flow can be arranged on the outside of the kettle body or on the top of the kettle body, etc., where it does not occupy the available volume of the kettle body, and is connected to the fan-shaped nozzle through a liquid pipeline, thereby reducing the encroachment of the present solution on the available volume of the kettle body; at the same time, the installation and rotation of the fan-shaped nozzle in the present solution also utilize the stirring rod and stirring blades inside the kettle body, which not only realizes the multiple uses of the stirring rod and stirring blades, but also enables the present solution to avoid the installation of a dedicated rotating mechanism for the fan-shaped nozzle, thereby further reducing the encroachment of the present solution on the internal space of the kettle body, which is beneficial to maintaining the production and economic benefits of the kettle body.

[0009] On the other hand, water flow can also penetrate into various tiny gaps, such as between two adjacent heat exchange coils, and between the heat exchange coil and the inner wall of the kettle body. Compared with a brush or scraper, it has fewer sanitary dead corners and better cleaning effects. It can clean kettle bodies with complex inner wall shapes, such as kettle bodies with heat exchange coils and sensor brackets.

[0010] The residues washed down from the inner wall of the kettle body will gather at the bottom of the kettle body with the water flow. Therefore, the residues can be poured out from the inside of the kettle body by opening the discharge port at the bottom of the kettle body. Unlike the prior art, the residues are only transferred to the brush or scraper, and it is not necessary to send staff to enter the kettle body to clean or replace the brush and scraper.

[0011] In summary, this solution can drive the fan-shaped nozzle to move in the kettle body through the rotation of the stirring rod and the stirring blades, and then flush the inner wall of the kettle body along the way, flush the residue from the inner wall of the kettle body and gather it at the bottom of the kettle body, and then open the discharge port at the bottom of the kettle body to complete the removal of the residue. There is no need to send staff to enter the inner wall of the kettle body for cleaning operations, and it has higher cleaning efficiency and lower safety risks. Compared with the existing technology using brushes or scrapers, this solution has less encroachment on the internal space of the kettle body, which is conducive to maintaining the production and economic benefits of the kettle body, and can be adapted to the kettle body with complex inner wall shapes.

[0012] Preferably, the water spraying direction of the fan-shaped nozzle and the length direction of the corresponding stirring blade have an angle less than ninety degrees.

[0013] Since the fan-shaped nozzle is arranged at the end of the stirring blade away from the stirring rod, if the fan-shaped nozzle is directly directed to the inner wall of the kettle body along the radial direction of the stirring rod, the water flow sprayed from the fan-shaped nozzle will quickly hit the inner wall of the kettle body and will not have time to diffuse to both sides, which will cause the cleaning range of the fan-shaped nozzle along the length direction of the stirring rod to be lower; therefore, this scheme chooses to make the angle between the direction of the fan-shaped nozzle and the length direction of the corresponding stirring blade an acute angle, which can increase the distance between the fan-shaped nozzle and the inner wall of the kettle body, so that the water flow sprayed from the fan-shaped nozzle can fully diffuse to both sides before reaching the kettle body, thereby obtaining a larger cleaning range.

[0014] Preferably, a visual sensor is also included, which is connected to the stirring fan blade and is used to obtain an image of the inner wall of the kettle body.

[0015] In this solution, a visual sensor is arranged on the stirring fan blade, which can facilitate the staff or the visual detection system to judge the cleaning effect of the inner wall of the kettle body through the image of the inner wall of the kettle body, so as to determine whether to end the cleaning operation or need to continue the cleaning operation; and because the visual sensor is connected to the stirring fan blade, the visual sensor can move in the kettle body driven by the stirring fan blade, so that the graphics of various positions in the kettle body can be obtained by one visual sensor, which is conducive to increasing the utilization rate of the visual sensor, reducing the total number of visual sensors, and thus reducing the manufacturing cost of this solution.

[0016] Preferably, the angle between the lens direction of the visual sensor and the length direction of the corresponding stirring blade is less than ninety degrees.

[0017] Similar to the fan-shaped nozzle, since the visual sensor is connected to the stirring blade, if the visual sensor directly points to the inner wall of the kettle body along the radial direction of the stirring rod, the field of view of the visual sensor will be limited; therefore, this scheme chooses to make the angle between the direction of the visual sensor and the length direction of the corresponding stirring blade an acute angle, which can increase the field of view of the visual sensor, thereby obtaining a more complete image of the inner wall of the kettle body with fewer sensors, which is conducive to increasing the utilization rate of the visual sensor, reducing the total number of visual sensors, and thereby reducing the manufacturing cost of this scheme.

[0018] Preferably, the stirring blade equipped with the visual sensor has an angle less than ninety degrees with the adjacent stirring blade equipped with the fan-shaped nozzle, the visual sensor is arranged along the circumferential surface of the stirring rod facing the fan-shaped nozzle, and the lens of the visual sensor is located within the water spraying range of the fan-shaped nozzle.

[0019] Since the water flow sprayed from the fan-shaped nozzle will spread to both sides along the length direction of the stirring rod, this scheme sets the stirring blade equipped with the visual sensor and the stirring blade equipped with the fan-shaped nozzle at a certain angle, and points the visual sensor toward the fan-shaped nozzle. The water flow sprayed from the fan-shaped nozzle can not only flush the inner wall of the kettle body, but also flush the visual sensor, thereby avoiding the situation where residues remain in the lens of the visual sensor and affect the judgment of the cleaning effect.

[0020] Preferably, it also includes a comparison module, which stores a standard image, and the standard image includes an image of the inner wall of the kettle in a clean state; the comparison module is used to receive the actual image acquired by the visual sensor and compare it with the standard image. When the difference between the actual image and the standard image exceeds a predetermined threshold, the comparison module can send a first signal.

[0021] Since identifying whether the kettle body is clean only requires comparing the image difference between the kettle body before and after cleaning, and does not involve the recognition of complex features, this solution adds a comparison module that can automatically determine the difference between the standard image and the actual image of the kettle body in a clean state, and output a first signal when the difference exceeds a predetermined threshold. The staff or the control system can decide whether further cleaning is needed based on whether the first signal is received, without the need to manually identify the actual image, which is conducive to allowing the reactor to be put into the next round of liquid product preparation more quickly.

[0022] Preferably, the stirring blade is also connected to a lighting device, and the lighting device points to the front of the visual sensor.

[0023] There will be various protruding structures on the inner wall of the kettle, such as heat exchange coils, stirring rod supports, temperature sensors and their mounting structures. If there are residues in the kettle, the residues will tend to adhere to these protruding structures. Therefore, this scheme arranges a lighting device on the stirring fan blade. On the one hand, it can provide basic lighting for the visual sensor to facilitate the imaging of the visual sensor; on the other hand, it can allow the protruding structure to cast a shadow on the side away from the lighting device. Since the shape of the shadow matches the shape of the protruding structure, it is possible to determine whether there are residues attached to the protruding structure by analyzing the shape of the shadow of the protruding structure; for example, for a cylindrical protruding structure, if its shadow shape is a triangle, there is a high probability that there are residues attached to the protruding structure; and since there is an obvious brightness difference between the shadow and the illuminated part, this scheme can also reduce the difficulty of judging the residues, thereby improving the efficiency and accuracy of judging the cleaning effect, which is conducive to the automation of judging the cleaning effect.

[0024] Preferably, the water spraying range of the fan-shaped nozzle along the length direction of the stirring rod is greater than or equal to the distribution spacing of the stirring blades.

[0025] This solution can ensure that the cleaning ranges of two adjacent fan-shaped nozzles in the height direction can be connected to each other, thereby avoiding the situation where part of the area in the kettle body is not covered by any fan-shaped nozzle.

[0026] Preferably, the fan-shaped nozzle is connected to the side of the stirring blade away from the rotation direction of the stirring blade.

[0027] That is, when the stirring blades rotate, the fan-shaped nozzle is located on the side of the stirring blades away from the rotation direction, which can prevent the fan-shaped nozzle from being directly washed by the liquid when the stirring blades stir the liquid, thereby reducing the risk of residue blocking the fan-shaped nozzle and causing the fan-shaped nozzle to be blocked.

[0028] In a second aspect, the present invention provides a liquid product production line, comprising an automatically cleanable reaction kettle of the present invention.

[0029] The liquid product production line of the present invention adopts the automatically cleanable reactor of the present invention to produce liquid products. After completing a round of liquid product preparation, it can automatically clean the inside of the reactor body and collect the residues at the bottom of the reactor body. The residues can be discharged by opening the discharge port. There is no need to send staff to enter the reactor body for manual cleaning, which has higher cleaning efficiency and lower safety risks.

[0030] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention provides a reaction kettle that can be automatically cleaned. The rotation of a stirring rod and a stirring blade drives a fan-shaped nozzle to move in the kettle body, thereby flushing the inner wall of the kettle body along the way, flushing the residue from the inner wall of the kettle body and gathering it at the bottom of the kettle body, and then opening the discharge port at the bottom of the kettle body to complete the removal of the residue. There is no need to send staff to enter the inner wall of the kettle body for cleaning operations, and it has higher cleaning efficiency and lower safety risks. Compared with the existing technology using a brush or a scraper, this solution occupies less space inside the kettle body, which is conducive to maintaining the production and economic benefits of the kettle body, and can be adapted to kettles with complex inner wall shapes.

[0031] 2. The present invention provides a liquid product production line, which produces liquid products by adopting the automatically cleanable reactor of the present invention. After completing a round of liquid product preparation, the inside of the reactor can be automatically cleaned without sending staff to enter the reactor for manual cleaning, thereby having higher cleaning efficiency and lower safety risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the three-dimensional structure of an automatic cleaning reaction kettle of the present invention; Figure 2 It is a schematic diagram of a half-section three-dimensional structure of an automatic cleaning reaction kettle of the present invention; Figure 3 yes Figure 2 The local enlarged structure diagram of A in the middle Figure 1 ; Figure 4 The side view of the cross-sectional structure of a self-cleaning reactor of the present invention is shown in FIG. Figure 1 ; Figure 5 It is a schematic diagram of a top view and cross-sectional structure of an automatic cleaning reaction kettle of the present invention; Figure 6 yes Figure 2 The local enlarged structure diagram of A in the middle Figure 2 ; Figure 7 The side view of the cross-sectional structure of a self-cleaning reactor of the present invention is shown in FIG. Figure 2 ; icon: 1- kettle body; 11- feed inlet; 12- discharge outlet; 2-stirring rod; 3-stirring blade; 31-mounting seat; 4-fan-shaped nozzle; 5-visual sensor. DETAILED DESCRIPTION

[0033] The present invention is further described in detail below in conjunction with test examples and specific implementation methods. However, this should not be understood as the scope of the above subject matter of the present invention being limited to the following embodiments, and all technologies realized based on the content of the present invention belong to the scope of the present invention.

[0034] Unless otherwise specified, in the description of the specific embodiments of the present invention, the terms indicating the orientation or position relationship such as "up", "down", "left", "right", "center", "inside", "outside", etc. are all expressions based on the orientation or position relationship shown in the drawings, or the orientation or position relationship when the invented product / equipment / device is usually used. These terms of orientation or position relationship are only for the convenience of describing the scheme of the present invention or simplifying the description in the specific embodiments, so as to facilitate the technicians to quickly understand the scheme, rather than indicating or implying that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific position relationship, and therefore cannot be understood as a limitation on the present invention.

[0035] In addition, if the terms "horizontal", "vertical", "overhanging", "parallel" and the like appear, it does not mean that the corresponding devices / components / elements are required to be absolutely horizontal or vertical or overhanging or parallel, but may be slightly tilted or have deviations. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but may be slightly tilted. Alternatively, it can be simplified to mean that the corresponding devices / components / elements are set in directions such as "horizontal", "vertical", "overhanging", "parallel", etc., and can have an error / deviation of ±10% relative to the corresponding direction setting, more preferably an error / deviation within ±8%, more preferably an error / deviation within ±6%, more preferably an error / deviation within ±5%, and more preferably an error / deviation within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its role in the scheme of the present invention.

[0036] In addition, the expressions “first”, “second”, “third”, etc., which appear in the terms, are merely used to distinguish the description of the same or similar components and should not be understood as emphasizing or implying the relative importance of specific components.

[0037] In addition, in the description of the embodiments of the present invention, "several", "plurality" and "a number" represent at least 2. It can be any number such as 2, 3, 4, 5, 6, 7, 8, 9, and even more than 9.

[0038] In addition, in the description of the technical solution of the present invention, unless otherwise clearly specified / defined / restricted, the terms "set", "install", "connect", "connected", "provided with", "laid", and "arranged" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, and can be welding, riveting, bolting, threading, and other commonly used connection means in the field. This connection can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the internal connection of two elements.

[0039] Example 1 like Figures 1 to 7 As shown, a reaction kettle that can be automatically cleaned includes a kettle body 1, a stirring rod 2, a driving device, a stirring blade 3, a fan-shaped nozzle 4 and a water pump; wherein the top of the kettle body 1 is provided with an openable and closable feeding port 11, and the bottom is provided with an openable and closable discharging port 12; the stirring rod 2 is rotatably connected to the inside of the kettle body 1, and its axis is arranged along the height direction of the kettle body 1; the driving device is connected to the stirring rod 2, and is used to drive the stirring rod 2 to rotate; the stirring blade 3 is connected to the stirring rod 2, and the length of the stirring blade 3 is arranged along the radial direction of the stirring rod 2, and at least two stirring blades 3 are arranged at intervals along the length direction of the stirring rod 2; the fan-shaped nozzle 4 is connected to the end of the stirring blade 3 away from the stirring rod 2, the water spraying direction of the fan-shaped nozzle 4 points to the inner wall of the kettle body 1, and the width direction of the water spraying of the fan-shaped nozzle 4 is arranged along the length direction of the stirring rod 2; the water pump is connected to the fan-shaped nozzle 4 through a liquid pipeline, and the liquid pipeline includes at least one rotary joint.

[0040] In the above embodiment, the fan-shaped nozzle 4 refers to Figure 4 As shown, the nozzles that can spread the water flow to both sides can directly adopt existing products. The number of fan-shaped nozzles 4 is determined according to actual needs, as long as the predetermined area of ​​the inner wall of the kettle body 1 can be cleaned. At least one fan-shaped nozzle 4 can be installed on each stirring blade 3, or fan-shaped nozzles 4 can be installed on only some stirring blades 3.

[0041] In the above embodiment, the liquid pipeline can be either a hole structure processed inside the stirring rod 2 and the stirring blade 3, or an independent pipeline component installed inside or outside the stirring rod 2 and the stirring blade 3; the rotary joint can be set at any position between the water pump and the stirring rod 2, such as the end of the stirring rod 2 or the water outlet pipe of the water pump.

[0042] In the above embodiments, the driving device includes but is not limited to a motor, a combination of a motor and a reducer, and a rotary cylinder.

[0043] In an optional embodiment, if Figure 3As shown, a mounting seat 31 is provided at one end of the stirring blade 3 away from the stirring rod 2, and the fan-shaped nozzle 4 is connected to the mounting seat 31; the mounting seat 31 is a hollow structure, and its internal space is used to accommodate the joint of the fan-shaped nozzle 4 and auxiliary equipment such as the solenoid valve, as well as the power supply and signal lines of the subsequent visual sensor 5, and to protect these auxiliary equipment and lines. The mounting seat 31 and the stirring blade 3 can be two parts of an integrated structure, or two independent components connected to each other. The latter can reduce the difficulty of manufacturing the stirring blade 3.

[0044] In an optional embodiment, the water spraying direction of the fan-shaped nozzle 4 and the length direction of the corresponding stirring blade 3 have an angle less than ninety degrees. Figure 5 The angle α is less than ninety degrees.

[0045] In an optional embodiment, the angle between the direction of the fan-shaped nozzle 4 and the length direction of the corresponding stirring blade 3 is α, and there are at least two different values ​​of α, for example Figure 4 and Figure 5 As shown, three layers of stirring blades 3 are arranged at intervals along the length direction of the stirring rod 2, and at least one fan-shaped nozzle 4 is arranged at both ends of each layer of stirring blades 3. Then, each fan-shaped nozzle 4 on the stirring blades 3 can have at least two different α, so that the inner wall of the reactor can be cleaned at different water spraying angles to improve the cleaning effect.

[0046] In an optional embodiment, a visual sensor 5 is further included, and the visual sensor 5 is connected to the stirring blade 3, for example, Figure 3 As shown, it is also connected to the mounting base 31 like the fan-shaped nozzle 4; the visual sensor 5 is used to obtain the image of the inner wall of the kettle body 1. The visual sensor 5 includes but is not limited to visible light sensors, infrared sensors, and laser scanners, as long as they can be used to obtain all images of the inner wall of the kettle body 1 that need to judge the cleaning effect; the specific methods include but are not limited to: using a camera with a large field of view, such as a 360° panoramic camera or a wide-angle camera to obtain the image of the inner wall of the kettle body 1 of all target areas at one time; or using an ordinary camera with a smaller field of view, when taking images, the camera takes multiple images at different angles as the stirring blades 3 rotate, and then the images of all target areas of the inner wall of the kettle body 1 are obtained by combining the multiple images; the number of visual sensors 5 is determined according to actual needs, as long as the imaging of the predetermined area of ​​the inner wall of the kettle body 1 can be completed, at least one visual sensor 5 can be installed on each stirring blade 3, or the visual sensor 5 can be installed only on some stirring blades 3, for example Figure 4 and Figure 5 As shown, three layers of stirring blades 3 are arranged at intervals along the length direction of the stirring rod 2 , but the visual sensor 5 is only arranged on the stirring blade 3 located in the middle, and only the fan-shaped nozzles 4 are arranged on the other stirring blades 3 .

[0047] In an optional embodiment, the angle between the lens direction of the visual sensor 5 and the length direction of the corresponding stirring blade 3 is less than 90 degrees. Figure 5 The β angle is less than ninety degrees.

[0048] In an optional embodiment, the stirring blade 3 equipped with the visual sensor 5 has an angle less than ninety degrees with the adjacent stirring blade 3 equipped with the fan-shaped nozzle 4, the visual sensor 5 is arranged along the circumferential surface of the stirring rod 2 facing the fan-shaped nozzle 4, and the lens of the visual sensor 5 is located within the water spraying range of the fan-shaped nozzle 4. For example Figures 4 to 5 As shown, three layers of stirring blades 3 are arranged at intervals along the length direction of the stirring rod 2, and a visual sensor 5 is arranged on the stirring blade 3 located in the middle, and the angle between the visual sensor 5 and the stirring blade 3 located at the bottom and equipped with a fan-shaped nozzle 4 is θ, and θ is not equal to 0, specifically less than ninety degrees, so that the visual sensor 5 and the corresponding fan-shaped nozzle 4 are one in front and the other in the rear along the circumference of the stirring rod 2, so that the visual sensor 5 is arranged along the circumference of the stirring rod 2 facing the fan-shaped nozzle 4, and the size of the water spray range of the fan-shaped nozzle 4 along the length direction of the stirring rod 2 is guaranteed, for example Figure 4 H1 is greater than or equal to the distance between the lens of the visual sensor 5 and the fan-shaped nozzle 4 along the length direction of the stirring rod 2, so that the lens of the sensor is located within the water spraying range of the fan-shaped nozzle 4. When the fan-shaped nozzle 4 sprays water, the water flow can not only flush the inner wall of the kettle body 1, but also flush the visual sensor 5.

[0049] It should be noted that the visual sensor 5 is arranged along the circumferential surface of the stirring rod 2 toward the fan-shaped nozzle 4. Figure 5 As shown, in the projection image on the plane perpendicular to the axial direction of the stirring rod 2, the visual sensor 5 points to the fan-shaped nozzle 4, but the visual sensor 5 may not be arranged toward the fan-shaped nozzle 4 in other directions.

[0050] In an optional embodiment, a comparison module is also included, which stores a standard image, and the standard image includes an image of the inner wall of the kettle body 1 in a clean state; the comparison module is communicatively connected to the visual sensor 5, the water pump and the drive device, and can receive the actual image acquired by the visual sensor 5, and compare it with the standard image, wherein the angle of the stirring rod 2 corresponding to the standard image is equal to the angle of the stirring rod 2 corresponding to the actual image; when the difference between the actual image and the standard image is greater than or equal to a predetermined threshold, a first signal is output; the first signal includes but is not limited to a sound signal, an optical signal, which is used to prompt the staff that the cleaning effect does not meet the expectations; or an electrical signal, which is used to drive the water pump and the drive device to continue working for a specified time; when the difference between the actual image and the standard image is lower than a predetermined threshold, a second signal is output, and the second signal includes but is not limited to a sound signal and an optical signal different from the first signal, which is used to prompt the staff that the cleaning effect has met the expectations; or an electrical signal is used to stop the water pump and the drive device.

[0051] In an optional implementation, since this embodiment only needs to compare the differences between the standard image and the actual image and does not involve the recognition of complex features, the comparison method between the standard image and the actual image can adopt existing technologies, such as hash method, histogram algorithm, and grayscale method.

[0052] In an optional embodiment, the visual sensor 5 is rotatably connected to the mounting base 31, and the axis of the rotational connection is perpendicular to the axis of the stirring rod 2, so that the visual sensor 5 can change the direction of the lens, and can be used to obtain image information of the inner wall of the kettle body 1 at different angles, so as to help the staff to more accurately judge the cleaning effect of the inner wall of the kettle body 1; the rotation of the visual sensor 5 relative to the mounting base 31 can be achieved in various ways, including but not limited to through a motor, a rotary cylinder, and a rotary hydraulic cylinder.

[0053] In an optional embodiment, the stirring blade 3 is also connected to a lighting device, which points to the front of the visual sensor 5. The lighting device can be separated from the visual sensor 5 and set at a different position from the visual sensor 5, or set near the visual sensor 5, or the visual sensor 5 integrated with the lighting device can be directly used.

[0054] In an optional embodiment, the water spraying range of the fan-shaped nozzle 4 along the length direction of the stirring rod 2 is greater than or equal to the distribution spacing of the stirring blades 3. Figure 4 As shown in H1 in FIG. 1 , it is sufficient to make it greater than or equal to the distribution spacing of the stirring blades 3 along the length direction of the stirring rod 2.

[0055] In an optional embodiment, the fan-shaped nozzle 4 is connected to the side of the stirring blade 3 that is away from the rotation direction of the stirring blade 3. Figure 5 As shown, if the rotation direction of the stirring blade 3 in the figure is counterclockwise, the fan-shaped nozzle 4 is connected to the front side of the stirring blade 3 along the counterclockwise direction.

[0056] In an optional embodiment, the fan-shaped nozzle 4 is rotatably connected to the mounting seat 31, and the axis of the rotation connection is perpendicular to the axis of the stirring rod 2, so that the fan-shaped nozzle 4 can change the water spraying direction; for example, when the fan-shaped nozzle 4 rotates to Figure 3 When the orientation is shown, the spray direction of the fan-shaped nozzle 4 is as follows Figure 4 As shown, it can be used to clean the inner wall of the kettle body 1; when the fan-shaped nozzle 4 rotates to Figure 6 When the orientation is shown, the spray direction of the fan-shaped nozzle 4 is as follows Figure 7 As shown, it can be used to clean the top of the kettle body 1; the rotation of the fan-shaped nozzle 4 relative to the mounting seat 31 can be achieved in various ways, including but not limited to through a motor, a rotating cylinder, and a rotating hydraulic cylinder.

[0057] In an optional embodiment, the water outlet pressure of the fan-shaped nozzle 4 is greater than or equal to 20 MPa, which is suitable for residues with high viscosity. The specific value depends on the difficulty of flushing the actual residues. For example, for trademark glue, the water blowing pressure of the fan-shaped nozzle 4 can be increased to 50 to 100 MPa.

[0058] In an optional embodiment, a heat exchange coil is further provided inside the kettle body 1, so that the present solution can heat or cool the internal liquid, and is suitable for the production of liquid products that require control of the reaction temperature, such as trademark glue or lubricating oil.

[0059] Example 2 A liquid product production line comprises the automatically cleanable reaction kettle of Example 1.

[0060] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A self-cleaning reactor, comprising a reactor body (1), characterized in that: Also includes: A stirring rod (2), the stirring rod (2) being rotatably connected to the interior of the kettle body (1); A stirring blade (3), the stirring blade (3) being connected to the stirring rod (2), the stirring blade (3) being arranged along the radial direction of the stirring rod (2), and at least two stirring blades (3) being arranged at intervals along the length direction of the stirring rod (2); a fan-shaped nozzle (4), the fan-shaped nozzle (4) being connected to an end of the stirring blade (3) away from the stirring rod (2), the water spraying direction of the fan-shaped nozzle (4) pointing toward the inner side wall of the kettle body (1), and the width direction of the water spraying of the fan-shaped nozzle (4) being arranged along the length direction of the stirring rod (2); A water pump, the water pump is connected to the fan-shaped nozzle (4) through a liquid pipeline, and the liquid pipeline includes at least one rotary joint.

2. The self-cleaning reactor according to claim 1, characterized in that: The water spraying direction of the fan-shaped nozzle (4) and the length direction of the corresponding stirring blade (3) have an angle of less than ninety degrees.

3. The self-cleaning reactor according to claim 2, characterized in that: It also comprises a visual sensor (5), the visual sensor (5) being connected to the stirring blade (3), and the visual sensor (5) being used to acquire an image of the inner wall of the kettle body (1).

4. The self-cleaning reactor according to claim 3, characterized in that: The angle between the lens orientation of the visual sensor (5) and the length direction of the corresponding stirring blade (3) is less than ninety degrees.

5. The self-cleaning reactor according to claim 4, characterized in that: The stirring blade (3) on which the visual sensor (5) is mounted has an angle of less than ninety degrees with the adjacent stirring blade (3) on which the fan-shaped nozzle (4) is mounted. The visual sensor (5) is arranged along the circumferential surface of the stirring rod (2) facing the fan-shaped nozzle (4), and the lens of the visual sensor (5) is located within the water spraying range of the fan-shaped nozzle (4).

6. The self-cleaning reactor according to claim 3, characterized in that: It also includes a comparison module, the comparison module stores a standard image, the standard image includes an image of the inner wall of the kettle body (1) in a clean state; the comparison module is used to receive an actual image acquired by the visual sensor (5) and compare it with the standard image, and when the difference between the actual image and the standard image exceeds a predetermined threshold, the comparison module can send a first signal.

7. The self-cleaning reactor according to claim 3, characterized in that: The stirring blade (3) is also connected to a lighting device, and the lighting device points to the front of the visual sensor (5).

8. The self-cleaning reactor according to any one of claims 1 to 7, characterized in that: The water spraying range of the fan-shaped nozzle (4) along the length direction of the stirring rod (2) is greater than or equal to the distribution spacing of the stirring blades (3).

9. The self-cleaning reactor according to any one of claims 1 to 7, characterized in that: The fan-shaped nozzle (4) is connected to a side of the stirring blade (3) that is away from the rotation direction of the stirring blade (3).

10. A liquid product production line, characterized in that: The invention comprises an automatically cleanable reaction kettle as claimed in any one of claims 1 to 9.

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