Energy-saving wastewater purification treatment equipment for a steam loom

Abstract

The application relates to the technical field of wastewater purification, in particular to an energy-saving wastewater purification treatment equipment for a steam loom, which comprises a gas floatation tank, a vertical partition plate is fixedly arranged in the gas floatation tank, and the vertical partition plate divides the gas floatation tank into a gas floatation area and a overflow area. The energy-saving wastewater purification treatment equipment for the steam loom is provided with a pure mechanical eccentric force-accumulating pressure screen structure, can automatically complete force accumulation, high-pressure screening and reset circulation operation relying on the floating sludge accumulation pressure, does not need to be provided with independent pneumatic equipment and an electric control sensing component, completely changes the operation mode that the traditional gas floatation equipment can only integrally discharge sludge and cannot classify and screen impurities, can accurately separate soft fibers and hard particle impurities in steam loom wastewater flocculation floating sludge, can improve wastewater purification precision, can realize separate recycling of textile fibers, can save production resources, can simplify the equipment structure, can reduce the overall machine power consumption and land occupation, and the energy-saving effect is remarkable.

Description

Technical Field

[0001] This invention relates to the field of wastewater purification technology, specifically to an energy-saving wastewater purification treatment device for steam looms. Background Technology

[0002] Steam looms continuously generate weaving wastewater during mass production. This type of wastewater has a unique composition, mainly consisting of cotton fibers, short chemical fibers, weaving sizing agents, lubricants, and hard particles such as silt. After being flocculated with chemicals, these impurities form a large amount of mixed flocculated scum. Currently, the core pretreatment equipment for this type of wastewater in the textile industry is mostly dissolved air flotation equipment. This equipment primarily uses microbubbles to adhere and flocculate impurities, which then float to the surface. Combined with a mechanical scraper structure, the scum is scraped off and discharged as a whole.

[0003] Existing conventional air flotation equipment has many substantial defects in actual use: First, the existing equipment can only achieve the overall collection and discharge of flocculated scum, and cannot classify and separate the flexible fiber impurities and hard particle impurities inside the scum. The fiber impurities and hard particles of mud and sand are mixed and piled up, which not only makes the waste residue have a high water content and difficult to compact and dewater, but also greatly increases the energy consumption and labor costs of subsequent sludge defiltration, transportation and disposal. Furthermore, pure textile fibers cannot be recycled and reused separately, resulting in the waste of textile raw material resources.

[0004] Secondly, traditional sludge scraping structures mostly adopt a fixed chain scraper method, where the contact area between the scraper and the water surface is fixed. This can easily lead to incomplete removal of floating sludge and localized sludge accumulation and clumping. Long-term operation can easily cause sludge blockage and machine jamming, resulting in poor equipment stability and requiring frequent shutdowns for maintenance, which affects the efficiency of continuous wastewater treatment operations.

[0005] Third, the existing scum conveying structure has a single function, only having a simple conveying function. During the scum conveying process, the attached sewage cannot be drained in time, and a large amount of sewage enters the subsequent treatment process with the waste residue, increasing the load on the downstream water treatment. At the same time, the loose waste residue after separation is very easy to fall back into the water body, causing fluctuations in the water quality of the wastewater treatment and making it difficult to guarantee the purification accuracy.

[0006] In view of this, we propose an energy-saving wastewater purification and treatment equipment for steam looms. Summary of the Invention

[0007] The purpose of this invention is to provide an energy-saving wastewater purification and treatment device for steam looms, to solve the problems mentioned in the background art, such as the inability of existing air flotation equipment to separate soft and hard impurities, high operating energy consumption, and poor scum treatment effect. To achieve the above objective, this invention provides the following technical solution: an energy-saving wastewater purification and treatment device for steam looms, comprising an air flotation tank, wherein a vertical partition plate is fixedly installed inside the air flotation tank, dividing the interior of the air flotation tank into an air flotation zone and an overflow zone.

[0008] The flotation tank and the upper end of the vertical partition plate are fixedly equipped with a scum conveying pipe, and a scum pushing screw is rotatably installed inside the scum conveying pipe.

[0009] The scum conveying pipe corresponding to the air flotation zone has a half-pipe support structure with an open upper side, and the bottom pipe wall of the scum conveying pipe corresponding to the overflow zone has several drainage holes.

[0010] The scum conveying pipe is equipped with an impurity separation fixing pipe inside the pipe body corresponding to the overflow scum area. The impurity separation fixing pipe and the inner wall of the scum conveying pipe form a soft fiber separation cavity. The inner cavity of the impurity separation fixing pipe is a hard particle receiving cavity. The pipe wall of the impurity separation fixing pipe is provided with several impurity separation through holes that connect the hard particle receiving cavity and the soft fiber separation cavity.

[0011] An impurity pushing tube is axially slidably assembled inside the impurity separation and fixing tube. The end of the impurity pushing tube near the slag pushing auger is a closed end face and is equipped with a one-way air inlet valve. The one-way air inlet valve is unidirectionally open from the inside of the impurity pushing tube toward the hard particle receiving cavity.

[0012] The tail end of the scum conveying pipe is movably fitted with a pneumatic extrusion sleeve, and a power storage compression spring is fixedly installed between the tail end of the scum conveying pipe and the pneumatic extrusion sleeve. Under normal conditions, the pneumatic extrusion sleeve is eccentrically abutted against the impurity pushing pipe.

[0013] A return spring is fixedly assembled between the impurity pushing tube and the pneumatic extrusion sleeve.

[0014] The bottom of the scum conveying pipe is fixedly connected to a fiber discharge outer sleeve that communicates with the soft fiber separation chamber. The bottom of the impurity separation fixing pipe is coaxially fixedly connected to a particle discharge inner sleeve. The particle discharge inner sleeve is coaxially inserted inside the fiber discharge outer sleeve. A particle discharge auger is rotatably assembled inside the particle discharge inner sleeve.

[0015] The lower ends of both the fiber discharge outer sleeve and the particle discharge inner sleeve are designed as constricting tapered openings.

[0016] Preferably, the slag-pushing auger is driven to rotate by a drive motor at the end of the slag conveying pipe. The drainage holes are arranged vertically and evenly in a matrix at the bottom of the slag conveying pipe corresponding to the overflow slag area. The diameter of the drainage holes is smaller than the minimum particle size of the flocculated slag. This can quickly remove the sewage attached to the slag while preventing the leakage of slag particles and making it less prone to dirt accumulation and blockage.

[0017] Preferably, one end of the impurity separation and fixing tube is fixedly connected to a tapered connecting tube, the outer end of which is sealed and fixed to the inner wall of the scum conveying tube. The other end of the impurity separation and fixing tube is fixedly fitted with a sealing and fixing ring, the outer ring of which is sealed and fixed to the inner wall of the scum conveying tube, forming a closed soft fiber separation chamber. The impurity separation through holes are inclined openings, and multiple sets of impurity separation through holes are arranged in a ring array along the wall of the impurity separation and fixing tube, and are inclined outward from the hard particle receiving chamber toward the soft fiber separation chamber.

[0018] Preferably, the inner side of the tail end of the scum conveying pipe is provided with a conical positioning hole coaxial with itself. The taper of the conical positioning hole is adapted to the end taper of the pneumatic extrusion sleeve, so as to realize automatic centering and positioning during the sliding process of the pneumatic extrusion sleeve.

[0019] Preferably, the one-way air inlet valve assembled at the end of the impurity push tube is a mechanical one-way valve. The one-way air inlet valve can only allow air to flow unidirectionally from the inside of the impurity push tube toward the hard particle receiving cavity, and completely seals off in the reverse direction.

[0020] Preferably, the outer diameter of the closed end face of the impurity pushing tube near the slag pushing auger is larger than the outer diameter of the tube body, forming an integral limiting step structure, which can limit the maximum sliding stroke of the impurity pushing tube and prevent the impurity pushing tube from sliding out of the impurity separation fixing tube.

[0021] Preferably, the end of the particle discharge auger extends into a particle discharge inner sleeve and is connected to an external drive motor. The outer diameter of the particle discharge auger is adapted to the inner diameter of the particle discharge inner sleeve to achieve stable particle conveying.

[0022] Preferably, the inner ring of the pneumatic extrusion sleeve has a lower wall thickness than the upper wall thickness, which makes the overall center of gravity of the pneumatic extrusion sleeve lower. Under normal conditions, the equipment can rely on its own weight to fall and form a fixed eccentric position, maintaining a misaligned contact with the impurity pushing tube.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows: In this invention, a purely mechanical eccentric power-storing pneumatic screening structure is set up. Relying on the pressure of scum accumulation, it automatically completes the cycle of power storage, high-pressure screening, and resetting. There is no need to configure independent pneumatic equipment and electronic control induction components. This completely changes the traditional operation mode of air flotation equipment, which can only discharge scum as a whole and cannot classify and screen impurities. It can accurately separate soft fibers and hard particulate impurities in the flocculated scum of steam loom wastewater. This not only improves the purification accuracy of wastewater, but also enables the separate recycling of textile fibers, saving production resources. At the same time, it simplifies the equipment structure, reduces the power consumption and floor space of the whole machine, and has a significant energy-saving effect.

[0024] In this invention, the automatic alignment, air compression, and reset are achieved through the cooperation of the storage compression spring, the reset spring, and the conical positioning hole, resulting in a purely mechanical cyclic operation. The structure has strong linkage and a low failure rate. No real-time manual intervention is required, making it suitable for long-term continuous and high-load wastewater treatment in textile mills. It solves the problems of easy slag accumulation, slag blockage, machine jamming, and frequent shutdown maintenance required by traditional scraper slag removal structures, significantly reducing equipment maintenance costs and downtime losses, and greatly improving operational stability.

[0025] In this invention, adhering sewage is automatically drained through the drainage holes, reducing the moisture content of the waste residue and alleviating the load on the downstream water treatment process. At the same time, a nested structure of fiber discharge outer sleeve and particle discharge inner sleeve is adopted, with a tapered pipe opening at the lower end. Soft fibers wrap hard particles to form an integrated waste residue strip, effectively preventing the hard particles from loosening and scattering, pipe blockage, and secondary backflow of waste residue to pollute the water body. This ensures stable wastewater quality and reduces the processing costs of subsequent waste residue dewatering and transportation. Attached Figure Description

[0026] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural cross-sectional view of the present invention; Figure 3 This is a bottom view of the three-dimensional structure of the scum conveying pipe and fiber discharge outer sleeve of the present invention; Figure 4 This is a partial exploded view of the scum conveying pipe and scum pushing auger of the present invention; Figure 5 This is a front sectional view of the scum conveying pipe, impurity separation and fixing pipe, and impurity pushing pipe of the present invention. Figure 6 This is a three-dimensional structural cross-sectional view of the scum conveying pipe, impurity separation and fixing pipe, and impurity pushing pipe of the present invention. Figure 7 For the present invention Figure 7 Enlarged view of point A in the middle; Figure 8 This is a three-dimensional structural cross-sectional view of the scum conveying pipe, fiber discharge outer sleeve, and particle discharge inner sleeve of the present invention. Figure 9 This is an exploded view of the impurity push tube, one-way air inlet valve, air pressure extrusion sleeve, and energy storage compression spring of the present invention.

[0027] In the diagram: 1. Flotation tank; 2. Vertical partition plate; 3. Scum conveying pipe; 4. Scum pushing auger; 5. Impurity separation fixing pipe; 6. Soft fiber separation chamber; 7. Hard particle receiving chamber; 8. Impurity separation through hole; 9. Impurity pushing pipe; 10. One-way air inlet valve; 11. Air pressure squeezing sleeve; 12. Power storage compression spring; 13. Return spring; 14. Fiber discharge outer sleeve; 15. Particle discharge inner sleeve; 16. Particle discharge auger; 17. Drainage through hole; 18. Constriction conical pipe opening; 19. Drive motor; 20. Conical connecting pipe; 21. Sealing fixing ring; 22. Conical positioning hole. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Please see Figures 1 to 9 This invention provides a technical solution: an energy-saving wastewater purification treatment device for steam looms, including an air flotation tank 1. The air flotation tank 1 serves as the supporting foundation, and a vertical partition plate 2 divides the water body into zones, strictly separating the air flotation reaction zone from the overflow and sludge discharge zone. This prevents floating sludge from being mixed into the water to be treated, ensuring the purity and continuity of sludge collection. A sludge conveying pipe 3 is installed across the air flotation tank 1 and the top of the vertical partition plate 2, employing a segmented irregular structure design. A semi-open upper pipe structure is provided corresponding to the air flotation zone, which can collect a large area of ​​flocculated sludge floating on the water surface, eliminating dead-angle sludge collection. The pipe body corresponding to the overflow sludge zone is closed, and drainage holes 17 are opened in the bottom matrix, simultaneously completing wastewater drainage during the sludge conveying process, achieving pre-dehydration of the sludge, and significantly reducing the moisture content of the waste residue.

[0030] The scum conveying pipe 3 integrates a fixed impurity separation pipe 5, which is sealed at both ends and enclosed by the pipe wall, forming an independent yet interconnected double-cavity structure inside the pipe body. The outer cavity forms a soft fiber separation cavity 6, and the through-hole cavity inside the pipe forms a hard particle receiving cavity 7. The two cavities are connected by annular arrayed impurity separation through-holes 8, providing stable cavity conditions for subsequent airflow screening and impurity classification. An impurity pushing pipe 9 is axially slidably fitted inside the impurity separation pipe 5. The closed end face of the pushing pipe can withstand the pressure of scum accumulation. Together with the tail pneumatic extrusion sleeve 11, the accumulating compression spring 12, and the return spring 13, it forms a complete purely mechanical accumulating reciprocating mechanism. Under normal conditions, relying on the eccentric characteristics of the pneumatic extrusion sleeve 11, it maintains a misaligned contact with the impurity pushing pipe 9, ensuring a unified initial standby state. After scum accumulation and pressure application, it can automatically complete a fully automatic cycle of sliding accumulating force, alignment and air compression, and pressure release and reset, without the need for electrical control or pneumatic auxiliary components. The structure is simplified and the operation is highly stable.

[0031] The bottom-nested double-pipe slag discharge structure enables the classified discharge of impurities. The bottom of the soft fiber separation chamber 6 is connected to the fiber discharge outer sleeve 14, which is specifically used to guide light fiber impurities. The hard particle receiving chamber 7 is coaxially connected to the particle discharge inner sleeve 15, and is equipped with a particle discharge auger 16 to actively transport hard mud, sand, and slurry lumps, avoiding the accumulation of heavy particles and clogging the pipes. The lower ends of both sets of sleeves are uniformly equipped with conical pipe openings 18, which can automatically shape the hard particles wrapped by soft fibers at the end of the slag discharge, forming regular strip-shaped waste residue, completely solving the defects of loose, easy backflow, and easy scattering of waste residue in traditional equipment.

[0032] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 9 As shown, the slag pusher auger 4 adopts a direct-drive method with an end drive motor 19, ensuring stable transmission and uniform torque. It can adapt to the pushing requirements of different slag accumulation amounts, ensuring uniform slag conveying and avoiding local slag accumulation and blockage. The drainage through-holes 17 adopt a matrix-style vertical through-hole arrangement structure, with the hole diameter strictly smaller than the minimum particle size of the flocculated slag. While ensuring rapid drainage of sewage, it completely blocks the leakage of slag particles, preventing waste residue loss. At the same time, the vertical through-holes have no dead corners for sludge accumulation, making them less prone to clogging during long-term operation and suitable for continuous operation of the equipment.

[0033] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 9As shown, the two ends of the impurity separation fixing pipe 5 are fully sealed by the tapered connecting pipe 20 and the sealing fixing ring 21, so that the soft fiber separation chamber 6 forms a closed cavity, ensuring no airflow leakage during high-pressure screening and ensuring stable screening pressure. The inclined impurity separation through holes 8 arranged in a ring array on the pipe wall adopt an opening method that is inclined from the inside to the outside. On the one hand, it can form a sliding blockage for hard mud and sand and hard slurry blocks, completely solving the problem of easy slag jamming and hole blockage in the straight hole structure; On the other hand, it can form a directional flow for soft cotton fibers and short chemical fibers, and with the circumferential uniform airflow, it can achieve uniform screening throughout the entire area, greatly improving the accuracy of impurity classification.

[0034] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 9 As shown, a conical positioning hole 22 is coaxially opened at the tail of the scum conveying pipe 3. Its taper is precisely matched with the taper of the end of the pneumatic extrusion sleeve 11. During the sliding process of the pneumatic extrusion sleeve 11, it can automatically center and align itself through the self-adaptive guidance of the conical surface, correct the normal eccentricity deviation, ensure the coaxiality of the air compression process, and make the high-pressure airflow uniform and stable output. This avoids the problems of air pressure leakage and uneven screening caused by the misalignment, and improves the stability of equipment operation.

[0035] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 9 As shown, the one-way air inlet valve 10 is a mechanical one-way valve, which does not require electrical control. It achieves automatic opening and sealing by relying solely on the pressure difference between the inside and outside of the cavity. When opening, the high-pressure airflow rushes into the hard particle receiving cavity 7 in one direction. When sealing, the cavity is completely sealed and there is no airflow backflow. It accurately matches the working rhythm of mechanical storage screening, prevents airflow backflow from affecting the screening effect, and has a simple and durable structure with a low failure rate.

[0036] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 9 As shown, the outer diameter of the closed end face of the impurity push tube 9 is larger than the outer diameter of the tube body, forming an integrated limiting step. During the axial sliding process of the impurity push tube 9, the maximum sliding stroke can be effectively limited to prevent the push tube from sliding excessively and falling out of the impurity separation fixing tube 5. At the same time, it ensures that the sliding stroke is constant each time, so that the storage stroke of the storage compression spring 12 and the high-pressure airflow pressure are consistent, ensuring the consistency and stability of the equipment's cyclic operation and reducing the probability of equipment failure.

[0037] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 9 As shown, the particle discharge auger 16 extends from the end of the particle discharge inner sleeve 15 and is connected to an external drive motor 19 to achieve independent and controllable drive. The outer diameter of the auger is precisely matched with the inner diameter of the inner sleeve, and the gap is uniform, which can stably transport hard particle impurities and avoid particle jamming, accumulation and pipe blockage. At the same time, the speed can be adjusted according to the amount of waste residue accumulation to adapt to different processing loads and ensure continuous and stable discharge of hard particles.

[0038] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 9 As shown, the pneumatic extrusion sleeve 11 adopts an eccentric wall thickness structure with a lower wall thickness greater than the upper wall thickness, which naturally lowers the overall center of gravity. Under normal conditions without external force intervention, the equipment falls stably by its own weight and forms a fixed eccentric contact with the impurity pushing tube 9. Stable eccentric power storage can be achieved without additional positioning or limiting structures. The structure is simplified and has no redundant parts, completely avoiding the defects of conventional coaxial structures that cannot achieve eccentric power storage, ensuring a uniform initial state before each operation, and higher accuracy of equipment cycle operation.

[0039] A method for using an energy-saving wastewater purification and treatment device for a steam loom includes the following steps: S1. After being pretreated by chemical flocculation, the wastewater from the steam loom is sent into the flotation zone of the flotation tank 1. The impurities in the wastewater, such as cotton fibers, short chemical fibers, silt, and hard slurry lumps, react fully with the chemicals to form flocculated scum. Under the adhesion of microbubbles, the flocculated scum floats steadily to the surface of the flotation zone. The upper open semi-pipe structure of the scum conveying pipe 3 above the flotation zone directly receives the floating scum, and the end drive motor 19 drives the scum pushing auger 4 to rotate at a uniform speed, continuously and steadily pushing the flocculated scum towards the overflow zone, realizing continuous scum feeding.

[0040] S2. The flocculated scum enters the scum conveying pipe 3 corresponding to the overflow zone via the scum pushing auger 4. During the conveying process, the free wastewater attached to the surface of the scum is quickly drained downwards through the vertical drainage holes 17 arranged in a matrix at the bottom of the pipe, effectively reducing the overall moisture content of the scum and reducing the water treatment load of subsequent processes. The drained flocculated scum is continuously pushed into the hard particle receiving cavity 7 of the impurity separation and fixing pipe 5. As the scum continues to accumulate, the pressure inside the cavity gradually increases. The pressure acts on the closed end face of the impurity pushing pipe 9, pushing the impurity pushing pipe 9 to slide smoothly towards the tail end along the axial direction of the impurity separation and fixing pipe 5.

[0041] S3. During the sliding process of the impurity pushing tube 9, the air pressure extrusion sleeve 11 is continuously pushed, causing the air pressure extrusion sleeve 11 to compress the energy storage spring 12 and complete the storage of elastic potential energy. As the pneumatic extrusion sleeve 11 continues to shift, its end gradually embeds into the conical positioning hole 22 at the tail of the scum conveying pipe 3. Under the guiding and limiting action of the conical surface, the normally eccentric pneumatic extrusion sleeve 11 automatically aligns coaxially, forming a coaxial fit structure with the impurity pushing pipe 9. At this time, the stored compression spring 12 rapidly releases its elastic potential energy, pushing the pneumatic extrusion sleeve 11 to slide rapidly axially, squeezing the sealed air at the tail to form a high-pressure airflow. High-pressure airflow opens the mechanical one-way air inlet valve 10 and rushes into the hard particle receiving chamber 7 at high speed. It forms a uniform circumferential screening airflow through the impurity separation through holes 8 arranged in a ring array, realizing the precise screening of soft and hard impurities. Soft fibers are blown into the soft fiber separation chamber 6 by the airflow, while hard particles are intercepted and retained.

[0042] S4. After a single screening operation is completed, the pressure of scum accumulation inside the hard particle receiving chamber 7 drops significantly. The reset spring 13 elastically resets, causing the impurity pushing tube 9 to slide and reset in the opposite direction. The pneumatic extrusion sleeve 11, relying on its own weight, forms an eccentric abutment structure again, and the equipment returns to its initial state, completing a single operation cycle. It can operate continuously and repeatedly. At the same time, the fiber impurities inside the soft fiber separation chamber 6 are discharged through the fiber discharge outer sleeve 14 under the action of airflow and gravity. Impurities such as mud, sand, and slurry lumps inside the hard particle receiving cavity 7 fall into the particle discharge inner sleeve 15 and are uniformly conveyed and discharged by the particle discharge auger 16. Finally, through the cooperation of two sets of constricting conical nozzles 18, the fiber wraps the hard particles and shapes them into an integrated waste strip, preventing waste from scattering, flowing back, and causing secondary pollution.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. An energy-saving wastewater purification and treatment device for steam looms, comprising an air flotation tank (1), characterized in that: The interior of the flotation tank (1) is divided into a flotation zone and a sludge overflow zone by a vertical partition plate (2); The flotation tank (1) and the upper end of the vertical partition plate (2) are fixedly equipped with a scum conveying pipe (3), and a scum pushing auger (4) is rotatably installed inside the scum conveying pipe (3). The scum conveying pipe (3) has a half-pipe support structure with an open upper side in the pipe body corresponding to the air flotation zone, and the bottom pipe wall of the scum conveying pipe (3) corresponding to the overflow zone is provided with several drainage holes (17). The scum conveying pipe (3) is fixedly equipped with an impurity separation fixing pipe (5) inside the pipe body corresponding to the scum overflow area. The impurity separation fixing pipe (5) and the inner wall of the scum conveying pipe (3) form a soft fiber separation cavity (6). The inner cavity of the impurity separation fixing pipe (5) is a hard particle receiving cavity (7). The pipe wall of the impurity separation fixing pipe (5) is provided with several impurity separation through holes (8) that connect the hard particle receiving cavity (7) and the soft fiber separation cavity (6). The impurity separation and fixing tube (5) is axially slidably fitted with an impurity pushing tube (9). The end of the impurity pushing tube (9) near the slag pushing auger (4) is a closed end face and is fitted with a one-way air inlet valve (10). The one-way air inlet valve (10) is unidirectionally guided from the inside of the impurity pushing tube (9) toward the hard particle receiving cavity (7). The tail end of the scum conveying pipe (3) is movably fitted with a pneumatic extrusion sleeve (11), and a power storage compression spring (12) is fixedly assembled between the tail end of the scum conveying pipe (3) and the pneumatic extrusion sleeve (11). Under normal conditions, the pneumatic extrusion sleeve (11) is eccentrically abutted against the impurity pushing pipe (9). A return spring (13) is fixedly assembled between the impurity push tube (9) and the pneumatic extrusion sleeve (11). The bottom of the scum conveying pipe (3) is fixedly connected to a fiber discharge outer sleeve (14) that communicates with the soft fiber separation chamber (6). The bottom of the impurity separation fixing pipe (5) is coaxially fixedly connected to a particle discharge inner sleeve (15). The particle discharge inner sleeve (15) is coaxially inserted inside the fiber discharge outer sleeve (14). A particle discharge auger (16) is rotatably assembled inside the particle discharge inner sleeve (15). The lower end openings of both the fiber discharge outer sleeve (14) and the particle discharge inner sleeve (15) are configured as constricting conical openings (18).

2. The energy-saving wastewater purification equipment for steam looms according to claim 1, characterized in that: The slag pusher auger (4) is driven to rotate by a drive motor (19) fixed at the end of the slag conveying pipe (3); The drainage holes (17) are evenly arranged in a matrix along the bottom of the scum conveying pipe (3) corresponding to the overflow scum area. The drainage holes (17) are vertical holes, and the diameter of the drainage holes (17) is smaller than the minimum particle size of the flocculated scum.

3. The energy-saving wastewater purification equipment for steam looms according to claim 1, characterized in that: The impurity separation and fixing pipe (5) is fixedly connected to a conical connecting pipe (20) at one end near the slag pushing auger (4). The outer end of the conical connecting pipe (20) is sealed and fixed to the inner wall of the slag conveying pipe (3). The other end of the impurity separation and fixing pipe (5) is fixedly equipped with a sealing and fixing ring (21). The outer ring of the sealing and fixing ring (21) is sealed and fixed to the inner wall of the slag conveying pipe (3). The impurity separation through hole (8) is an inclined opening structure. Several impurity separation through holes (8) are evenly arranged in a ring array along the wall of the impurity separation fixing tube (5). The impurity separation through holes (8) are inclined from the inside to the outside from the hard particle receiving cavity (7) toward the soft fiber separation cavity (6).

4. The energy-saving wastewater purification equipment for steam looms according to claim 1, characterized in that: The inner side of the tail of the scum conveying pipe (3) is provided with a conical positioning hole (22). The conical positioning hole (22) is coaxially arranged with the scum conveying pipe (3). The taper of the conical positioning hole (22) is adapted to the end taper of the pneumatic extrusion sleeve (11).

5. The energy-saving wastewater purification equipment for steam looms according to claim 1, characterized in that: The one-way air intake valve (10) is a mechanical one-way valve. The one-way air intake valve (10) only allows air to enter through the impurity push tube (9) towards the hard particle receiving cavity (7).

6. The energy-saving wastewater purification equipment for steam looms according to claim 1, characterized in that: The outer diameter of the closed end face of the impurity push tube (9) is larger than the outer diameter of the tube body, forming a limiting step to restrict the impurity push tube (9) from sliding out of the impurity separation and fixing tube (5).

7. The energy-saving wastewater purification equipment for steam looms according to claim 1, characterized in that: The end of the particle discharge auger (16) extends into the particle discharge inner sleeve (15) and is connected to an external drive motor (19). The outer diameter of the particle discharge auger (16) and the inner diameter of the particle discharge inner sleeve (15) are adapted to each other.

8. The energy-saving wastewater purification equipment for steam looms according to claim 1, characterized in that: The inner ring of the pneumatic extrusion sleeve (11) has a lower wall thickness than the upper wall thickness, which makes the overall center of gravity of the pneumatic extrusion sleeve (11) lower. Under normal conditions, it relies on its own weight to fall and form a fixed eccentric position, which is misaligned and abuts against the impurity push tube (9).

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