High-temperature self-cleaning microfilter
By using high-temperature and high-pressure steam cleaning technology, the problem of easy clogging of microfiltration screens has been solved, achieving efficient cleaning and stable operation, reducing labor intensity and power consumption, and making it suitable for water treatment equipment in multiple industries.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGMEN YUMENG FISHERY MASCH CO LTD
- Filing Date
- 2025-07-23
- Publication Date
- 2026-06-23
AI Technical Summary
The rotary filter screen of existing microfiltration machines is prone to clogging, resulting in poor cleaning effect, high labor intensity, increased power consumption and unstable equipment operation. Furthermore, substances such as grease, bacteria and algae in the water can easily cause clogging.
A high-temperature and high-pressure steam generator is used to provide high-temperature and high-pressure steam. The steam nozzle moves back and forth along the axis of the rotating drum, and in combination with the rotation of the drum, the filter screen is cleaned efficiently. The high temperature sterilizes and decomposes organic matter, and the latent heat released by steam condensation accelerates the removal of dirt, avoiding the use of chemical reagents.
It effectively reduces the frequency of filter clogging, lowers labor intensity, ensures continuous equipment operation, improves cleaning efficiency, and avoids secondary pollution, making it particularly suitable for chemically sensitive environments.
Smart Images
Figure CN224388261U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of microfiltration technology, and in particular to a high-temperature self-cleaning microfiltration machine. Background Technology
[0002] Microfilters are a commonly used filtration device in current water treatment technologies, widely applied across various industries. However, current microfilters on the market have some shortcomings. One such shortcoming is the trade-off between filtration precision and filtration efficiency. Higher precision filtration requires filter screens with higher mesh density, but higher density screens are prone to clogging, which is difficult to clean thoroughly even with high-pressure water guns, making it hard to restore effectiveness. When the rotary filter screen of a microfilter is not cleaned effectively, it easily becomes clogged, requiring frequent manual cleaning. This not only increases labor intensity and power consumption due to frequent rinsing but also affects the continuous operation of the equipment, reducing work efficiency. Furthermore, research has shown that grease, bacteria, algae, and other substances in the water can directly cause clogging of the rotary filter screen in microfilters. Utility Model Content
[0003] The purpose of this invention is to provide a high-temperature self-cleaning microfiltration machine that improves cleaning efficiency, reduces the frequency of filter screen clogging, lowers labor intensity, and ensures continuous and stable operation of the equipment.
[0004] To achieve the above objectives, this utility model provides a high-temperature self-cleaning microfiltration machine, including a frame and a rotary drum filter mechanism mounted on the frame. The frame is equipped with a high-temperature steam generator and a movable cleaning mechanism for cleaning the surface of the rotary drum filter mechanism. The high-temperature steam generator includes a water tank and a pressure tank. A booster pump is provided between the water supply port of the water tank and the water inlet of the pressure tank. The pressure tank has a built-in heater for heating water to form high-pressure steam. The movable cleaning mechanism includes a steam nozzle and a drive assembly. The output end of the drive assembly is connected to the steam nozzle and can drive the steam nozzle to reciprocate along the axis of the rotary drum. The steam nozzle is connected to the steam port of the pressure tank via a hose.
[0005] As a preferred embodiment of this utility model, the driving assembly includes a drive motor and a lead screw assembly. The drive motor is mounted on the frame and drives the screw of the lead screw assembly to rotate. The steam nozzle is connected to the nut slider of the lead screw assembly.
[0006] As a preferred embodiment of this utility model, the lead screw assembly is covered with a protective shell, the protective shell including a bottom shell and an upper cover covering the bottom shell. The cross-section of both the bottom shell and the upper cover is U-shaped. The screw of the lead screw assembly is disposed inside the bottom shell. The bottom sides of the nut slider are respectively provided with first mating grooves that slide and engage with the side walls of the bottom shell. The top sides of the nut slider are respectively provided with second mating grooves that slide and engage with the side walls of the upper cover. The second mating grooves are located outside the first mating grooves.
[0007] As a preferred embodiment of this utility model, a one-way valve is further provided between the water supply port of the water tank and the water inlet of the pressure tank, and the one-way valve is located on the rear side of the booster pump.
[0008] As a preferred embodiment of this utility model, the pressure tank is equipped with a water level detector.
[0009] As a preferred embodiment of this utility model, the steam port of the pressure tank is equipped with a solenoid valve.
[0010] As a preferred embodiment of this utility model, the high-temperature and high-pressure steam generator is provided with a protective shell for housing the water tank and pressure vessel.
[0011] As a preferred embodiment of this utility model, the mobile cleaning mechanism is disposed above the rotary drum filter mechanism.
[0012] Compared with the prior art, the high-temperature self-cleaning microfiltration machine of this utility model has the following advantages:
[0013] The steam nozzle in this invention can reciprocate along the axis of the rotating drum. During the cleaning process, the drum rotates simultaneously, ensuring uniform cleaning of the drum filter. A high-temperature steam generator provides high-temperature, high-pressure steam to clean the filter on the drum. The high-temperature, high-pressure steam sterilizes and decomposes organic matter on the drum filter. When the high-temperature steam comes into contact with a low-temperature object surface, the steam condenses into liquid water, releasing a large amount of latent heat of vaporization, further enhancing heat transfer efficiency and accelerating the softening of dirt. Under high pressure, the dirt is impacted and peeled off, loosened, and carried away by the steam. At the same time, the steam cleaning process does not require the addition of chemical reagents, avoiding secondary pollution. Attached Figure Description
[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.
[0015] Figure 1 This utility model provides an internal structural diagram of a high-temperature self-cleaning microfilter.
[0016] Figure 2An internal top view of a high-temperature self-cleaning microfilter provided by this utility model;
[0017] Figure 3 This is a schematic diagram of the structure of the high-temperature steam generator provided by this utility model;
[0018] Figure 4 A schematic diagram of the screw assembly provided by this utility model;
[0019] In the diagram, 1 is the frame; 2 is the rotary filter mechanism; 3 is the high-temperature steam generator; 31 is the water tank; 32 is the pressure tank; 33 is the booster pump; 34 is the heater; 35 is the one-way valve; 36 is the solenoid valve; 37 is the protective shell; 4 is the moving cleaning mechanism; 41 is the steam nozzle; 42 is the lead screw pair; 421 is the nut slider; 422 is the first mating groove; 423 is the second mating groove; 43 is the bottom shell; and 44 is the top cover. Detailed Implementation
[0020] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.
[0021] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0022] like Figures 1 to 4 As shown, a preferred embodiment of this utility model discloses a high-temperature self-cleaning microfiltration machine, comprising a frame 1 and a rotary drum filter mechanism 2 mounted on the frame 1. The frame 1 is equipped with a high-temperature steam generator 3 and a movable cleaning mechanism 4 for cleaning the surface of the rotary drum of the rotary drum filter mechanism 2. The high-temperature steam generator includes a water tank 31 and a pressure tank 32. In this embodiment, the high-temperature high-pressure steam generator is equipped with a protective shell 37 for mounting the water tank 31 and the pressure tank 32. A booster pump 33 is provided between the water supply port of the water tank 31 and the water inlet of the pressure tank 32. The pressure tank 32 contains a heater 34 for heating water to form high-pressure steam. The movable cleaning mechanism 4 includes a steam nozzle 41 and a drive assembly. The output end of the drive assembly is connected to the steam nozzle 41 and can drive the steam nozzle 41 to reciprocate along the axis of the rotary drum. The steam nozzle 41 is connected to the steam port of the pressure tank 32 via a flexible hose. The rotary drum filter mechanism 2 is an existing structure and will not be described again here.
[0023] The steam nozzle 41 in this invention can reciprocate along the axis of the rotating drum. During the cleaning process, the drum rotates simultaneously, ensuring uniform cleaning of the drum filter. A high-temperature, high-pressure steam generator provides high-temperature, high-pressure steam to clean the filter on the drum. The high-temperature steam can destroy the cell structure of microorganisms, causing protein denaturation and nucleic acid breakage, thereby killing pathogens such as bacteria, viruses, fungi, and mites. Most bacteria die within seconds at temperatures above 120°C, and spore-forming microorganisms can also be inactivated in a short time.
[0024] It can soften or melt organic dirt such as grease, wax, starch, and protein. Grease decreases in viscosity at high temperatures, making it easier to peel off from object surfaces. Proteins in food residues are denatured at high temperatures, weakening their adhesion to the surface and making them easier to wash away. When high-pressure steam is injected at high speed, it creates a powerful mechanical impact force that directly acts on dirt particles on the surface of the rotary filter screen, causing them to separate from the interface. Furthermore, steam can penetrate thick, high-density filter screens. The high molecular kinetic energy of high-pressure steam allows it to quickly penetrate into tiny pores, disrupting the adhesion between dirt and the substrate, loosening the dirt and carrying it away with the steam. The water molecules in high-temperature steam are highly active and have low surface tension, effectively wetting object surfaces and even penetrating beneath hydrophobic materials (such as grease-covered surfaces), weakening the adhesion between dirt and the substrate. When high-pressure steam comes into contact with a low-temperature object surface, the steam condenses into liquid water, releasing a large amount of latent heat of vaporization, further enhancing heat transfer efficiency and accelerating dirt softening. Simultaneously, the volume shrinks rapidly during condensation, creating localized negative pressure, which helps to draw in tiny particles. (In microfiltration systems, a common problem is that the water flow and the microfiltration unit's tonnage are mismatched, resulting in low rinsing frequency. This causes the filter screen on the rotating drum to dry out, and dirt adheres to the screen due to dehydration, rendering traditional liquid backwashing ineffective. Steam cleaning effectively solves this problem.) Furthermore, steam cleaning eliminates the need for added chemicals, avoiding secondary contamination. This is particularly beneficial in aquaculture settings where chemical control is extremely strict; high-temperature, high-pressure steam cleaning is suitable for chemically sensitive environments.
[0025] In order for the steam nozzle 41 to move smoothly back and forth to thoroughly clean the rotating drum, the drive assembly includes a drive motor and a lead screw assembly 42. The drive motor is mounted on the frame 1 and drives the screw of the lead screw assembly 42 to rotate. The steam nozzle 41 is connected to the nut slider 421 of the lead screw assembly 42.
[0026] In this embodiment, as Figure 4As shown, the lead screw assembly 42 is covered with a protective shell, which effectively protects the lead screw assembly 42 and prevents dirt and impurities from being thrown onto the lead screw assembly 42 during the operation of the microfilter, thus affecting the normal operation of the lead screw assembly 42. This prevents impurities from adhering to the lead screw assembly 42. The protective shell includes a bottom shell 43 and an upper cover 44 covering the bottom shell 43. The bottom shell 43 and the upper cover 44 both have U-shaped cross-sections. The screw of the lead screw assembly 42 is disposed inside the bottom shell 43. The bottom sides of the nut slider 421 are respectively provided with first mating grooves 422 that slide with the side walls of the bottom shell 43. The top sides of the nut slider 421 are respectively provided with second mating grooves 423 that slide with the side walls of the upper cover 44. The second mating grooves 423 are located outside the first mating grooves 422, thus effectively preventing interference between the nut slider 421 and the protective shell.
[0027] For example, such as Figure 3 As shown, a one-way valve 35 is also provided between the water supply port of the water tank 31 and the water inlet of the pressure tank 32. The one-way valve 35 is located on the rear side of the booster pump 33 to prevent the high-pressure steam formed in the pressure tank 32 from flowing back to the water tank 31, thus effectively protecting the booster pump 33.
[0028] For example, the pressure tank 32 is equipped with a water level detector, which can detect the water level in the pressure tank 32.
[0029] For example, the steam port of the pressure tank 32 is equipped with a solenoid valve 36 to effectively control the supply and cut-off of high-temperature and high-pressure steam.
[0030] For example, the mobile cleaning mechanism 4 is positioned above the rotary drum filter mechanism 2 to facilitate subsequent maintenance of the mobile cleaning mechanism 4.
[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0032] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.
Claims
1. A high-temperature self-cleaning microfiltration machine, comprising a frame and a rotary drum filter mechanism disposed on the frame, characterized in that, The frame is equipped with a high-temperature steam generator and a movable cleaning mechanism for cleaning the surface of the rotating drum of the rotary drum filter mechanism. The high-temperature steam generator includes a water tank and a pressure tank. A booster pump is provided between the water supply port of the water tank and the water inlet of the pressure tank. The pressure tank has a built-in heater for heating water to form high-pressure steam. The movable cleaning mechanism includes a steam nozzle and a drive assembly. The output end of the drive assembly is connected to the steam nozzle and can drive the steam nozzle to reciprocate along the axis of the rotating drum. The steam nozzle is connected to the steam port of the pressure tank through a hose.
2. The high-temperature self-cleaning microfiltration machine as described in claim 1, characterized in that, The drive assembly includes a drive motor and a lead screw assembly. The drive motor is mounted on the frame and drives the screw of the lead screw assembly to rotate. The steam nozzle is connected to the nut slider of the lead screw assembly.
3. The high-temperature self-cleaning microfiltration machine as described in claim 2, characterized in that, The lead screw assembly is covered by a protective shell, which includes a bottom shell and an upper cover covering the bottom shell. Both the bottom shell and the upper cover have a U-shaped cross-section. The screw of the lead screw assembly is disposed inside the bottom shell. The bottom sides of the nut slider are respectively provided with first mating grooves that slide and engage with the side walls of the bottom shell. The top sides of the nut slider are respectively provided with second mating grooves that slide and engage with the side walls of the upper cover. The second mating grooves are located outside the first mating grooves.
4. The high-temperature self-cleaning microfiltration machine as described in claim 1, characterized in that, A one-way valve is also provided between the water supply port of the water tank and the water inlet of the pressure tank, and the one-way valve is located on the rear side of the booster pump.
5. The high-temperature self-cleaning microfiltration machine as described in claim 1, characterized in that, The pressure tank is equipped with a water level detector.
6. The high-temperature self-cleaning microfiltration machine as described in claim 1, characterized in that, The pressure tank is equipped with a solenoid valve at its steam port.
7. The high-temperature self-cleaning microfiltration machine as described in claim 1, characterized in that, The high-temperature steam generator is equipped with a protective shell for housing the water tank and pressure vessel.
8. The high-temperature self-cleaning microfiltration machine as described in claim 1, characterized in that, The mobile cleaning mechanism is positioned above the rotary drum filter mechanism.