Stirring device capable of performing non-contact cleaning by using compressed air

Abstract

The invention relates to a stirring device using compressed air for non-contact cleaning, which comprises a compressed air supply system, a nozzle array system and a control system, and the compressed air supply system comprises an air compressor and a compressed air storage tank which are connected with each other; the nozzle array system comprises a motor, a speed reducer, a stirring shaft, blades, a dosing pipeline and a compressed air pipeline; the motor is connected with the speed reducer so as to drive the stirring shaft to rotate, the paddle is arranged on the stirring shaft, a washing nozzle array is arranged on the paddle, and the dosing pipeline is communicated with the compressed air pipeline and the washing nozzle array on the paddle; and the compressed air pipeline is communicated with the compressed air storage tank. Compared with the prior art, by means of an innovative cleaning mode and an intelligent control system, efficient and lossless cleaning of the stirrer blades is achieved. The system has the characteristics of wide applicability, high efficiency and intelligence, and can bring remarkable economic benefits and social benefits to the fields of water treatment, chemical production and the like.

Description

Technical Field

[0001] The invention belongs to the technical field of water treatment, and in particular relates to a stirring device which utilizes compressed air for contactless cleaning. Background Art

[0002] In modern chemical production and sewage treatment processes, mechanical stirring equipment undertakes core functions such as material mixing, reaction promotion and suspended matter dispersion. According to the 2022 industry report of the China Chemical Equipment Association, the installed capacity of industrial agitators in my country has exceeded 3.5 million units, of which the sewage treatment industry accounts for 41%. However, under continuous operation conditions, a flocculant deposition layer with a thickness of 5-15 mm will form on the surface of the blade (such as Figure 1 SEM electron microscope analysis shows that this complex pollutant contains 50-70% inorganic salt crystals, 20-30% organic polymers and microbial micelles.

[0003] However, traditional cleaning methods face three difficulties: First, low efficiency: a single cleaning takes several hours to several days, affecting production continuity.

[0004] 2. Safety hazards: Manual entry into a closed container poses a risk of poisoning and suffocation, and chemical residues may harm operators. 3. High costs: Frequent shutdowns lead to production capacity losses, and disassembly and maintenance require additional equipment and manpower. Therefore, it is particularly important to develop an efficient and automated cleaning system for the mixing device.

[0005] In view of this, the present invention is proposed. Summary of the invention

[0006] The present invention provides a stirring device for contactless cleaning using compressed air, which solves the technical problems mentioned in the above background technology by realizing an efficient and lossless cleaning process using compressed air.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A stirring device for contactless cleaning using compressed air, comprising a compressed air supply system, a nozzle array system and a control system:

[0009] The compressed air supply system includes an air compressor and a compressed air storage tank connected to each other;

[0010] The nozzle array system includes a motor, a reducer, a stirring shaft, blades, a dosing pipe, and a compressed air pipe; the motor is connected to the reducer to drive the stirring shaft to rotate, the blades are arranged on the stirring shaft, and a flushing nozzle array is arranged on the blades. The dosing pipe is connected to the compressed air pipe and the flushing nozzle array on the blades; the compressed air pipe is connected to the compressed air storage tank.

[0011] Preferably, in the compressed air supply system:

[0012] A filter, a stop valve, a pressure reducing valve and a pressure gauge are arranged on the pipeline connecting the compressed air pipeline and the compressed air storage tank.

[0013] Preferably, in the compressed air supply system:

[0014] A stop valve is provided on the pipeline connecting the air compressor and the compressed air storage tank.

[0015] Preferably, in the nozzle array system:

[0016] The flushing nozzle array is composed of a plurality of one-way check nozzles, and the one-way check nozzles are distributed over the entire surface of the blade.

[0017] Preferably, in the nozzle array system:

[0018] The one-way check nozzle comprises a nozzle housing, a connecting device and a silicone concave check membrane, wherein the connecting device is connected to a dosing pipeline and a compressed air pipeline;

[0019] The silicone concave check membrane is composed of four equal sector-shaped check membranes, and the silicone concave check membrane is concave inwardly and fixed on the nozzle housing;

[0020] The connecting device is provided with a cross limiting device, which includes two groups of ribs arranged crosswise with each other, and the two ends of the ribs are respectively connected to the inner wall of the connecting device;

[0021] The lowest point of the concave part of the silicone concave non-return membrane is located at the intersection of the two ribs.

[0022] Preferably, in the nozzle array system:

[0023] The first permanent magnets are arranged on the two right-angled sides of the sector-shaped non-return film, and the right-angled sides between two adjacent sector-shaped non-return films are magnetically connected by the first permanent magnets.

[0024] Preferably, in the nozzle array system:

[0025] The right-angle side of the fan-shaped non-return membrane coincides with the position of the rib.

[0026] Preferably, in the nozzle array system:

[0027] A second permanent magnet is also arranged on the rib, and the first permanent magnet on the right-angle side of the fan-shaped non-return film is magnetically connected with the second permanent magnet on the rib, so that the fan-shaped non-return film is fixed on the rib.

[0028] Preferably, in the nozzle array system:

[0029] The medicine adding pipeline and the compressed air pipeline are connected to the flushing nozzle array on the blade through an air-medicine common pipeline, and a flow meter is arranged on the air-medicine common pipeline.

[0030] Preferably, in the nozzle array system:

[0031] A blocking sensor is arranged on the blade.

[0032] Compared with the prior art, the present invention provides a stirring device that uses compressed air for contactless cleaning, which realizes efficient and non-destructive cleaning of the agitator blades through innovative cleaning methods and intelligent control systems. The system has wide applicability, high efficiency and intelligent characteristics, and will bring significant economic and social benefits to the fields of water treatment, chemical production, etc.

[0033] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0035] Figure 1 A schematic structural diagram of a compressed air supply system in a stirring device for contactless cleaning using compressed air provided by the present invention.

[0036] Figure 2 A schematic structural diagram of a nozzle array system in a stirring device for contactless cleaning using compressed air provided by the present invention.

[0037] Figure 3 A plan view of a one-way check nozzle in a stirring device for contactless cleaning using compressed air provided by the present invention.

[0038] Figure 4 A cross-sectional view of a one-way check nozzle in a stirring device for contactless cleaning using compressed air provided by the present invention.

[0039] Figure 5 The invention provides a schematic structural diagram of a silicone concave check membrane and a cross limit device in a stirring device that uses compressed air for contactless cleaning.

[0040] Figure 6 A schematic structural diagram of a fan-shaped check membrane in a stirring device that utilizes compressed air for contactless cleaning is provided for the invention.

[0041] Figure 7 The invention provides a schematic structural diagram of a nozzle array system in a stirring device that uses compressed air for contactless cleaning, including a flow meter and a blockage sensor.

[0042] In the figure:

[0043] 100. Compressed air supply system; 101. Air compressor; 102. Compressed air storage tank; 103. Stop valve; 104. Filter; 105. Pressure reducing valve; 106. Pressure gauge.

[0044] 200, nozzle array system; 201, motor; 202, reducer; 203, stirring shaft; 204, paddle; 205, dosing pipeline; 206, compressed air pipeline; 207, flushing nozzle array; 208, flow meter; 209, blockage sensor; 210, nozzle housing; 211, connecting device; 212, silicone concave check membrane; 213, cross limit device; 214, fan-shaped check membrane; 215, gas-drug common pipeline. DETAILED DESCRIPTION

[0045] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present invention.

[0046] like Figure 1-7 As shown, an embodiment of the present invention provides a stirring device for contactless cleaning using compressed air, including a compressed air supply system 100, a nozzle array system 200 and a control system:

[0047] In the stirring device for contactless cleaning using compressed air provided in the above embodiment, the compressed air supply system 100 includes an air compressor 101 and a compressed air storage tank 102 connected to each other; a filter 104, a stop valve 103, a pressure reducing valve 105 and a pressure gauge 106 are provided on the pipe connecting the compressed air pipeline 206 and the compressed air storage tank 102. A stop valve 103 is provided on the pipe connecting the air compressor 101 and the compressed air storage tank 102.

[0048] Specifically, in this embodiment, an energy-efficient air compressor 101 is selected as the air source, and a compressed air storage tank is provided to stabilize the air pressure output. This achieves the purpose of providing a stable and adjustable compressed air source. An adjustable pressure reducing valve 105 and a filter 104 are installed to ensure the stability and cleanliness of the output air pressure.

[0049] In the stirring device for contactless cleaning using compressed air provided in the above embodiment, the nozzle array system 200 includes a motor 201, a reducer 202, a stirring shaft 203, a paddle 204, a dosing pipe 205, and a compressed air pipe 206; the motor 201 is connected to the reducer 202 to drive the stirring shaft 203 to rotate, the paddle 204 is arranged on the stirring shaft 203, a flushing nozzle array 207 is arranged on the paddle 204, the dosing pipe 205 and the compressed air pipe 206 are connected to the flushing nozzle array 207 on the paddle 204; the compressed air pipe 206 is connected to the compressed air storage tank 102. The flushing nozzle array 207 is composed of a plurality of one-way check nozzles, and the one-way check nozzles are distributed over the entire surface of the paddle 204. The one-way check nozzle includes a nozzle housing 210, a connecting device 211 and a silicone concave check membrane 212, wherein the connecting device 211 is connected to the dosing pipe 205 and the compressed air pipe 206; the silicone concave check membrane 212 is composed of four equal fan-shaped check membranes 214, and the silicone concave check membrane 212 is concave and fixed on the nozzle housing 210; the connecting device 211 is provided with a cross-limiting device 213, and the cross-limiting device 213 includes two groups of ribs arranged crosswise, and the two ends of the ribs are respectively connected to the inner wall of the connecting device 211; the concave lowest point of the silicone concave check membrane 212 is located at the intersection of the two ribs. The first permanent magnet is provided on the two right-angled sides of the fan-shaped check membrane 214, and the right-angled sides between the two adjacent fan-shaped check membranes 214 are magnetically connected by the first permanent magnet. The right-angled sides of the fan-shaped check membrane 214 coincide with the positions of the ribs. A second permanent magnet is also provided on the rib, and the first permanent magnet on the right angle side of the fan-shaped check film 214 is magnetically connected to the second permanent magnet on the rib, so that the fan-shaped check film 214 is fixed on the rib. The dosing pipeline 205 and the compressed air pipeline 206 are connected to the flushing nozzle array 207 on the blade 204 through the air-pharmaceutical common pipeline 215, and a flow meter 208 is provided on the air-pharmaceutical common pipeline 215. A blocking sensor 209 is provided on the blade 204.

[0050] Specifically, in this embodiment, the nozzle array system 200 is designed with precisely arranged one-way check nozzles, which can evenly distribute the dosing and accurately spray different parts of the blade 204 to effectively remove sediments. The one-way check nozzle is made of wear-resistant and corrosion-resistant stainless steel to improve the service life and cleaning effect. The one-way check nozzle includes a nozzle housing 210, a connecting device 211, a silicone concave check membrane 212 and other components. Among them, the silicone concave check membrane 212 is designed with a "cross" cut on the silicone concave surface, so that four equal fan-shaped check membranes 214 are formed. When liquid / air passes through, the "cross" cut of the silicone concave check membrane 212 will allow the liquid / air to pass through due to elasticity; and when the external pressure is greater than or equal to the internal pressure, the "cross" cut of the silicone concave check membrane 212 will be compressed by its own elastic force to achieve a one-way check function.

[0051] In the above embodiment, in order to prevent the silicone concave check membrane 212 from excessively rebounding, a cross limit device 213 is specially designed. The cross limit device 213 includes two groups of ribs arranged crosswise with each other, and the two ends of the ribs are respectively connected to the inner wall of the connecting device 211; the lowest point of the concave part of the silicone concave check membrane 212 is located at the intersection of the two ribs.

[0052] In addition, in order to further prevent the silicone concave non-return membrane 212 from excessively rebounding, a first permanent magnet is provided on both right-angled sides of the fan-shaped non-return membrane 214, and the right-angled sides between two adjacent fan-shaped non-return membranes 214 are magnetically connected by the first permanent magnet. At the same time, a second permanent magnet is also provided on the rib, and the first permanent magnet on the right-angled side of the fan-shaped non-return membrane 214 is magnetically connected with the second permanent magnet on the rib, thereby fixing the fan-shaped non-return membrane 214 on the rib. When the dosing pump or compressed air is turned on, the internal pressure of the agitator is greater than the external pressure, and the liquid medicine breaks the magnetic connection of the permanent magnet of the fan-shaped non-return membrane 214 through the channel and enters the water pool; when the dosing pump is turned off, the internal pressure is equal to the external pressure, and the fan-shaped non-return membrane 214 is automatically closed, and the sealing is ensured due to the magnetic attraction.

[0053] In the present invention, the control system integrates flow regulation, timing control and feedback functions of the blocking sensor 209 to realize automation and intelligence of the cleaning process. Through the PLC controller and the touch screen operation interface, the automatic control and parameter setting of the cleaning process are realized. The pressure sensor and the position sensor are installed to monitor the air pressure and the nozzle position in real time to ensure the stability and safety of the cleaning process.

[0054] Working principle:

[0055] When the agitator is working, the dosing device adds medicine through the air-medicine common pipeline 215. When the flow rate displayed by the flow meter 208 decreases, it means that the flushing nozzle array 207 is blocked, and the control system automatically starts the cleaning program. Compressed air passes through the air-medicine common pipeline 215, and the compressed air supply system 100 starts to supply air, which is sent to the flushing nozzle array 207 through the air-medicine common pipeline 215 to clean the flushing nozzle array 207. The control system monitors the cleaning effect in real time and adjusts the injection parameters according to the feedback to ensure that the cleaning effect is optimal. After the cleaning is completed, the dosing device continues to add medicine through the air-medicine common pipeline 215, and the agitator enters the working state.

[0056] An agitator for contactless cleaning using compressed air provided in an embodiment of the present invention has the following advantages:

[0057] High efficiency and automation: automatic cleaning of the agitator blades 204 is realized, which greatly improves the cleaning efficiency and reduces the labor cost.

[0058] Non-destructive cleaning: Compressed air is used for non-contact cleaning to avoid physical damage to the blades 204.

[0059] Intelligent control: The cleaning process can be automated and intelligentized through the control system to improve the cleaning accuracy and effect.

[0060] Wide applicability: It is suitable for flocculation agitators of various types and specifications and has broad market application prospects.

[0061] The present invention realizes efficient and non-destructive cleaning of the agitator blade 204 through an innovative cleaning method and an intelligent control system. The system has wide applicability, high efficiency and intelligent characteristics, and will bring significant economic and social benefits to the fields of water treatment, chemical production, etc.

[0062] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0063] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. 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 can be slightly tilted.

[0064] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0065] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention. It should be noted that similar numbers and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

Claims

1. A stirring device for contactless cleaning using compressed air, comprising a compressed air supply system, a nozzle array system and a control system, characterized in that: The compressed air supply system includes an air compressor and a compressed air storage tank connected to each other; The nozzle array system includes a motor, a reducer, a stirring shaft, blades, a dosing pipe, and a compressed air pipe; the motor is connected to the reducer to drive the stirring shaft to rotate, the blades are arranged on the stirring shaft, and a flushing nozzle array is arranged on the blades. The dosing pipe is connected to the compressed air pipe and the flushing nozzle array on the blades; the compressed air pipe is connected to the compressed air storage tank.

2. A stirring device for contactless cleaning using compressed air according to claim 1, characterized in that: In the compressed air supply system: A filter, a stop valve, a pressure reducing valve and a pressure gauge are arranged on the pipeline connecting the compressed air pipeline and the compressed air storage tank.

3. A stirring device for contactless cleaning using compressed air according to claim 2, characterized in that: In the compressed air supply system: A stop valve is provided on the pipeline connecting the air compressor and the compressed air storage tank.

4. A stirring device for contactless cleaning using compressed air according to claim 3, characterized in that: In the nozzle array system: The flushing nozzle array is composed of a plurality of one-way check nozzles, and the one-way check nozzles are distributed over the entire surface of the blade.

5. A stirring device for contactless cleaning using compressed air according to claim 4, characterized in that: In the nozzle array system: The one-way check nozzle comprises a nozzle housing, a connecting device and a silicone concave check membrane, wherein the connecting device is connected to a dosing pipeline and a compressed air pipeline; The silicone concave check membrane is composed of four equal sector-shaped check membranes, and the silicone concave check membrane is concave inwardly and fixed on the nozzle housing; The connecting device is provided with a cross limiting device, which includes two groups of ribs arranged crosswise with each other, and the two ends of the ribs are respectively connected to the inner wall of the connecting device; The lowest point of the concave part of the silicone concave non-return membrane is located at the intersection of the two ribs.

6. A stirring device for contactless cleaning using compressed air according to claim 5, characterized in that: In the nozzle array system: The first permanent magnets are arranged on the two right-angled sides of the sector-shaped non-return film, and the right-angled sides between two adjacent sector-shaped non-return films are magnetically connected through the first permanent magnets.

7. A stirring device for contactless cleaning using compressed air according to claim 6, characterized in that: In the nozzle array system: The right-angle side of the fan-shaped non-return membrane coincides with the position of the rib.

8. A stirring device for contactless cleaning using compressed air according to claim 7, characterized in that: In the nozzle array system: A second permanent magnet is also arranged on the rib, and the first permanent magnet on the right-angle side of the fan-shaped non-return film is magnetically connected with the second permanent magnet on the rib, so that the fan-shaped non-return film is fixed on the rib.

9. A stirring device for contactless cleaning using compressed air according to claim 8, characterized in that: In the nozzle array system: The medicine adding pipeline and the compressed air pipeline are connected to the flushing nozzle array on the blade through an air-medicine common pipeline, and a flow meter is arranged on the air-medicine common pipeline.

10. The stirring device for non-contact cleaning using compressed air according to claim 8, characterized in that: In the nozzle array system: A blocking sensor is arranged on the blade.

Images