Textile wastewater treatment device and treatment process

Abstract

The present application relates to sewage treatment technical field, the present application provides a kind of textile sewage treatment device and treatment process, it includes sewage tank, sewage tank has cavity, cavity has located in middle feed inlet, located in the lower part of side wall waste outlet and located in the bottom of liquid outlet, waste outlet is several, along the bottom of cavity side interval arrangement, doser rotation is set in cavity, doser has dosing port, dosing port is located between feed inlet and liquid outlet, agitator rotation is set in the bottom of cavity, doser and agitator rotation direction is opposite, guide plate is set in waste outlet side, for the crystallization that agitator stirs to the edge of cavity is guided to waste outlet, to carry out waste removal. Through the above technical scheme, the technical problem of uneven mixing of drugs during wastewater treatment in related technology / prior art is solved, and the utilization rate of drugs is improved.

Description

Technical Field

[0001] The embodiments of the present invention relate to the field of wastewater treatment technology, specifically to a textile wastewater treatment device and treatment process. Background Technology

[0002] In the field of wastewater treatment, especially in scenarios with complex composition and large fluctuations in water quality, such as textile wastewater, traditional treatment devices have significant shortcomings in terms of reagent mixing efficiency, sediment separation, and waste discharge stability, making it difficult to meet the demand for efficient and economical treatment.

[0003] Existing wastewater treatment equipment suffers from significant structural design flaws. Relying solely on a flow field created by a single stirring direction leads to uneven reagent diffusion, resulting in locally excessively high or low concentrations and negatively impacting reaction efficiency. Traditional equipment suffers from inadequate wastewater discharge design, prone to clogging and incomplete discharge. A single or sparsely distributed wastewater discharge port causes localized accumulation of crystals at the bottom of the chamber, requiring frequent manual cleaning. Regarding flow field control, traditional equipment employs a single stirring method with low turbulence intensity, resulting in prolonged mixing time between reagents and wastewater. The unidirectional stirring creates "dead zones," making it difficult to disturb sediment at the bottom of the chamber, leading to hard scaling that not only increases cleaning difficulty but also reduces the effective volume of the chamber. Furthermore, the fixed installation of the dosing device prevents dynamic adjustment of the reagent release rate according to the wastewater pollution concentration. In the treatment of textile wastewater with significant water quality fluctuations, situations of excessive or insufficient reagent dosage frequently occur, further affecting treatment effectiveness. Summary of the Invention

[0004] To overcome the above-mentioned defects, the present invention provides a textile wastewater treatment device and treatment process, which solves the technical problem of uneven drug mixing during wastewater treatment in the prior art.

[0005] According to one aspect, at least one embodiment of the present invention provides a textile wastewater treatment apparatus, comprising: A wastewater tank has a cavity, the cavity having a feed inlet in the middle, a waste outlet in the lower part of the side wall, and a liquid outlet at the bottom. The waste outlet is a plurality of such outlets, which are spaced apart along the bottom periphery of the cavity. A dosing device is rotatably disposed within the cavity, and the dosing device has a dosing port located between the feed inlet and the liquid outlet; A stirrer is rotatably mounted at the bottom of the cavity, and the dosing device rotates in the opposite direction to the stirrer. A guide plate is disposed on one side of the waste discharge port to guide the crystals stirred by the stirrer to the edge of the cavity to the waste discharge port for waste discharge.

[0006] For example, at least one embodiment of this disclosure provides a textile wastewater treatment device, wherein the agitator has an annular structure, the upper end of the agitator has an arc-shaped agitation section, there are several arc-shaped agitation sections, which are evenly arranged along the circumference of the agitator, and a rectification gap is formed between two adjacent arc-shaped agitation sections.

[0007] For example, a textile wastewater treatment device provided in at least one embodiment of this disclosure further includes: A lifting baffle is provided at the liquid outlet. After the lifting baffle is lowered, it is used to unblock the liquid outlet. There is an installation gap between the lifting baffle and the peripheral wall of the liquid outlet. An annular baffle, which is raised and lowered and is disposed through the installation gap, is sealed to the raised baffle, and has a plurality of circumferentially arranged through holes on its side wall; A waste discharge baffle is oscillatingly disposed on one side of the waste discharge port. After oscillating, the waste discharge baffle is used to block or unblock the waste discharge port. After the lifting baffle descends, it drives the annular baffle to rise, which in turn drives the waste discharge baffle to oscillate and open the waste discharge port to achieve liquid discharge.

[0008] For example, at least one embodiment of this disclosure provides a textile wastewater treatment device in which the lifting baffle and the annular baffle are provided with opposing transmission racks at their bottoms, and the two transmission racks are meshed with the same idler gear to realize the reverse movement of the lifting baffle and the annular baffle.

[0009] For example, at least one embodiment of this disclosure provides a textile wastewater treatment device, wherein the bottom of the annular baffle further has a fixing part, and the textile wastewater treatment device further includes: The oscillating component has an oscillating groove at the bottom of the sewage tank. The oscillating component is oscillatingly disposed in the oscillating groove. The oscillating component has a pushing surface that abuts against the waste discharge baffle. After the oscillating component oscillates, the pushing surface pushes the waste discharge baffle to open the waste discharge port. The bottom of the oscillating component has a hinge part. A connecting rod is oscillatingly mounted at the bottom of the sewage tank. One end of the connecting rod is hinged to the fixed part, and the other end is hinged to the hinge part. After the connecting rod oscillates, it drives the waste discharge baffle to open the waste discharge port. An elastic rod, one end of which acts on the waste discharge baffle and the other end of which acts on the guide plate, is used to provide the force for the waste discharge baffle to close the waste discharge port.

[0010] For example, a textile wastewater treatment device provided in at least one embodiment of this disclosure further includes: A slag collection device, which is an annular cylinder, is located below the sewage tank and is used to collect the solid-liquid mixture discharged from the waste outlet. The slag collection device has a drain outlet at the bottom. A water collection device is provided below the liquid outlet, and the drain outlet is connected to the water collection device, for collecting the liquid flowing out of the liquid outlet and the drain outlet; A water removal component is provided, which is raised and lowered within the slag collection component and sealed to the slag collection component. After the water removal component descends, it is used to remove water from the slag collection component. A filter screen is disposed above the drain outlet to prevent crystallized material from entering the water collection component through the drain outlet.

[0011] For example, at least one embodiment of this disclosure provides a textile wastewater treatment device, wherein the slag collection component has a slag discharge port on its side, and the textile wastewater treatment device further includes: A rotating scraper is provided, which is rotatably arranged along the axis of the slag collecting member. After rotation, the scraper pushes the crystals at the bottom of the slag collecting member out of the slag discharge port. A slag discharge baffle is provided, which is raised and lowered on one side of the slag discharge port. When the slag discharge baffle is lowered, it is used to block the slag discharge port.

[0012] For example, at least one embodiment of this disclosure provides a textile wastewater treatment device in which an air inlet is provided on the slag discharge baffle, the air inlet being used to introduce air into the slag collection component, and the water removal component passing through one side of the air inlet when it is raised and lowered.

[0013] For example, at least one embodiment of this disclosure provides a textile wastewater treatment device, wherein the dosing device has an arc-shaped dosing section, and the lower end face of the arc-shaped dosing section has the dosing port.

[0014] This invention also proposes a textile wastewater treatment process using a textile wastewater treatment device, comprising the following steps: S1: Textile wastewater enters the cavity through the inlet of the wastewater tank of the textile wastewater treatment device, and the buffer zone formed in the middle of the cavity reduces the wastewater flow rate; the water level in the cavity is monitored by a liquid level sensor, and feeding is automatically stopped when the preset liquid level is reached; S2: Dosing and mixing of chemicals: Start the dosing device and rotate it clockwise to add coagulant into the wastewater at a uniform speed through the dosing port; at the same time, start the agitator and rotate it counterclockwise to form a shear flow field using the arc-shaped stirring part with the annular structure, so that the chemicals and wastewater are uniformly mixed. S3: Coagulation, Separation and Enrichment: Under the centrifugal force of the agitator, the mixed wastewater causes colloidal particles to coagulate into crystals and be pushed towards the edge of the cavity; the crystals are guided to the vicinity of the waste outlet by the inclined surface of the guide plate, and the crystals settle naturally due to gravity, achieving initial separation from the clean water; during this process, the lifting baffle is kept in the closed position to close the liquid outlet, and the waste outlet baffle is kept in the closed state, so that the crystals are enriched at the edge of the cavity.

[0015] The beneficial effects of the embodiments of the present invention are as follows: In this invention, the bottom stirring design of the cavity enhances the water flow disturbance at the bottom of the cavity, preventing the deposition of crystals. The tilt angle of the stirrer blades creates an upward circulation of water, driving the bottom sediment towards the edge, preparing for waste discharge. The tilted guide plate directs the flow of crystals pushed to the edge by the stirrer, reducing the adhesion of crystals to the cavity wall and improving the capture rate at the waste discharge port. The gap between the guide plate and the cavity wall creates micro-vortices that flush away residual crystals, reducing the frequency of manual cleaning and extending the continuous operation cycle of the equipment. Through the synergistic effect of its components, an integrated treatment process of "efficient mixing, rapid separation, and thorough waste removal" is achieved. Compared with traditional devices, the overall technical effect is improved in terms of treatment efficiency, reagent mixing uniformity, and treatment cycle; operational stability is enhanced, the thoroughness of crystal waste removal is improved, and the blockage rate of waste outlets is reduced; annual maintenance costs are lowered due to reduced cleaning and maintenance frequency, while reagent consumption is reduced due to increased reagent utilization; overall, this device improves operational efficiency and economy while ensuring treatment effectiveness. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of the present invention and these drawings without any creative effort.

[0017] Figure 1 This is a schematic diagram of a structure according to an embodiment of the present invention; Figure 2 for Figure 1 A top view of the structure in the embodiment; Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure of AA; Figure 4 for Figure 2 A magnified structural diagram of B in the diagram; Figure 5 for Figure 3A schematic diagram of the cross-sectional structure of the C-C section; Figure 6 for Figure 3 Schematic diagram of the cross-sectional structure of DD; Figure 7 for Figure 1 A schematic diagram of the stirrer in the embodiment; Figure 8 for Figure 1 The embodiment shows a schematic diagram of the filter structure.

[0018] In the diagram: Wastewater tank-1, cavity-101, inlet-102, waste outlet-103, liquid outlet-104, installation gap-105, swing trough-106, dosing device-2, dosing port-201, arc-shaped dosing section-202, agitator-3, arc-shaped agitator section-301, rectification gap-302, guide plate-4, lifting baffle-5, transmission rack-501, idler gear-50 2. Annular baffle-6, fixed part-601, through hole-602, waste discharge baffle-7, swinging part-8, push surface-801, hinge part-802, connecting rod-9, elastic rod-10, slag collection part-12, drain outlet-1201, slag discharge outlet-1202, water collection part-13, water removal part-14, filter screen-15, rotating scraper-16, slag discharge baffle-17, air inlet-1701. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it.

[0020] To keep the drawings concise, each drawing only schematically shows the parts relevant to the invention; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0021] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0022] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0023] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to 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 the present invention.

[0024] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0025] like Figures 1-8 The illustration shows a textile wastewater treatment device according to an embodiment of the present invention.

[0026] In some examples, the central inlet 102 of the cavity 101 is designed to allow wastewater entering the wastewater tank 1 to be initially mixed with the chemicals released by the dosing device 2. This allows for natural sedimentation under gravity, forming a pretreatment section, extending the reaction path between the wastewater and the chemicals, and improving mixing uniformity. Multiple waste outlets 103 on the lower side wall are spaced along the bottom perimeter, forming a ring-shaped waste discharge area. This avoids the risk of localized blockage at a single waste outlet, ensuring more thorough discharge of crystals and improving waste discharge efficiency. The bottom outlet 104 facilitates the centralized discharge of treated clean water, forming a discharge path that separates the clean water and sediment with the waste outlet 103, reducing the probability of clean water carrying sediment and resulting in more stable effluent quality. The rotating design of the dosing device 2 allows the chemicals to be evenly diffused into the wastewater as it rotates. The dosing port 201 is located in the reaction zone between the inlet 102 and the outlet 104, ensuring that the chemicals and wastewater contact within the optimal concentration range, thus improving chemical utilization. The release rate of the agent is controlled by adjusting the rotation speed, adapting to wastewater with different pollution concentrations and flexibly responding to fluctuations in the quality of textile wastewater. The agitator 3 and the dosing device 2 rotate in opposite directions (the dosing device rotates clockwise, and the agitator rotates counterclockwise), forming a bidirectional shear flow field. The turbulence intensity of the wastewater is increased to twice that of traditional unidirectional agitation, and the mixing time between the agent and the wastewater is further shortened. The bottom stirring design of cavity 101 enhances the water flow disturbance at the bottom of cavity 101, preventing the deposition of crystals. The tilt angle of the stirrer blades creates an upward circulation of water, driving the bottom sediment towards the edge, preparing for waste discharge. The inclined guide plate 4 directs the crystals pushed to the edge by the stirrer 3, reducing the adhesion of crystals to the cavity wall and improving the capture rate of waste discharge port 103. The gap between the guide plate 4 and the cavity wall creates micro-vortices, flushing away residual crystals, reducing the frequency of manual cleaning, and extending the continuous operation cycle of the equipment. Through the synergistic effect of its components, an integrated treatment process of "efficient mixing, rapid separation, and thorough waste removal" is achieved. Compared with traditional devices, the overall technical effect is improved in terms of treatment efficiency, reagent mixing uniformity, and treatment cycle; operational stability is enhanced, the thoroughness of crystal waste removal is improved, and the blockage rate of waste outlets is reduced; annual maintenance costs are lowered due to reduced cleaning and maintenance frequency, while reagent consumption is reduced due to increased reagent utilization; overall, this device improves operational efficiency and economy while ensuring treatment effectiveness.

[0027] In some examples, the rotating arc-shaped stirring section 301 creates a spiraling upward water flow, increasing the contact area between the wastewater and the reagent. At the same dosage, the demulsification efficiency of dye molecules in textile wastewater is improved, and the reaction time is shortened. The tilt angle of the arc-shaped stirring section 301 generates a radial thrust of water flow towards the edge of the cavity 101, increasing the migration speed of crystals towards the discharge port 103, increasing the concentration of crystals at the discharge port, and improving discharge efficiency.

[0028] The rectifying gap 302 between adjacent arc-shaped stirring sections 301 can buffer high-intensity turbulence, reduce the water flow velocity gradient at the edge of the cavity, prevent the crystals from dissolving again due to excessive disturbance, and ensure that the purity (solid content) of the crystals discharged from the waste outlet is improved.

[0029] The combined design of the annular structure of the agitator 3 with the arc-shaped stirring section 301 and the rectifying gap 302 enhances the mixing reaction between the reagent and the wastewater, while efficiently separating and promoting crystals, and reducing energy consumption and maintenance costs. This structure enables the device to exhibit stronger adaptability and treatment efficiency in the treatment of textile wastewater (containing high-fiber and high-color pollutants), providing a solid guarantee for subsequent wastewater discharge and effluent purification.

[0030] In some examples, the lifting baffle 5 is raised and lowered via an electric push rod, allowing for dynamic adjustment of the outlet 104 opening according to process requirements. When the annular baffle 6 rises to its highest position (above the plane of the outlet 104), its sidewall through-hole 602 forms a tortuous flow channel, extending the effluent path. The annular baffle 6 and the lifting baffle 5 are sealed together by a rubber sealing ring, effectively preventing sediment from entering the outlet 104. The swing angle of the waste discharge baffle 7 is sequentially linked with that of the lifting baffle 5 and the annular baffle 6: when the lifting baffle 5 descends, the annular baffle 6 rises synchronously, and the waste discharge baffle 7 swings, improving processing efficiency.

[0031] The swing axis of the waste discharge baffle 7 is higher than the bottom of the waste discharge port 103, and when the waste discharge baffle 7 is closed, it forms an inclined angle with the waste discharge port 103, which effectively prevents external liquid from flowing back in.

[0032] The coordinated design of the lifting baffle 5, the annular baffle 6, and the waste discharge baffle 7, through precise fluid control and dynamic sedimentation enhancement, breaks through the limitations of traditional wastewater treatment devices in solid-liquid separation efficiency and operational stability. This system is particularly suitable for wastewater treatment scenarios with high turbidity and easy scaling, such as textile wastewater, providing an efficient and reliable solution for industrial wastewater treatment.

[0033] In some examples, the transmission rack 501 at the bottom of the lifting baffle 5 and the annular baffle 6 achieves synchronous reverse movement via an idler gear 502. When the drive motor drives the lifting baffle 5 to descend, the idler gear 502 rotates counterclockwise, driving the annular baffle 6 to rise synchronously. By designing different tooth lengths for the rack 501, different stroke ratios are achieved. That is, when the lifting baffle 5 descends, the annular baffle 6 rises, precisely matching the opening and closing timing requirements of the liquid outlet 104 and the waste discharge outlet 103.

[0034] The single-motor drive with reverse transmission design reduces the number of drive components and lowers the complexity of the electrical control system, resulting in hardware cost savings. In the event of a power outage or drive failure, the lifting baffle 5 and the annular baffle 6 remain locked in their current positions, preventing the risk of sudden leakage. In contrast, traditional electric actuator systems may experience seal failure due to gravity sliding down during power outages.

[0035] In some examples, the push surface 801 of the swing member 8 adopts an arc-shaped design, which increases the contact area with the waste discharge baffle 7 and avoids deformation caused by local stress concentration. During swinging, the push surface 801 transmits the force evenly to the waste discharge baffle 7 through an involute motion trajectory, ensuring the stability of the opening of the waste discharge port 103. The swing groove 106 provides rigid guidance for the swing component 8, limiting its swing range within the design threshold and preventing damage to the connecting rod 9 or the waste discharge baffle 7 due to excessive swinging. The connecting rod 9 connects the fixed part 601 and the hinge part 802 through a hinge structure at both ends, converting the lifting motion of the annular baffle 6 into the swinging motion of the swing component 8. When the annular baffle 6 rises, the connecting rod 9 pushes the swing component 8 to swing, driving the waste discharge baffle 7 to open to a preset angle, realizing the linkage of "annular baffle rising - waste discharge baffle opening". The elastic element provides a continuous closing force for the waste discharge baffle 7. When the annular baffle 6 descends, the tension in the connecting rod 9 disappears, and the elastic rod 10 contracts under the action of the elastic element, causing the waste discharge baffle 7 to quickly reset, reducing the amount of clean water leakage after waste discharge. The extension and retraction stroke of the elastic rod 10, in conjunction with the deformation of the elastic element, can absorb the impact force when the waste discharge baffle 7 closes, reducing collision noise and simultaneously reducing the wear rate between the baffle and the waste discharge port 103. Through the linkage control of the annular baffle 6 and the waste discharge baffle 7, the opening timing of the waste discharge port 103 is matched with the peak concentration of the crystals, thereby increasing the solid content of a single waste discharge, reducing the number of waste discharges, and lowering the subsequent solid waste treatment costs. The coordinated design of the swing element 8, connecting rod 9, and elastic rod 10 constructs a complete mechanical linkage system of "drive-transmission-reset". Its core value lies in achieving precise timing control of the annular baffle 6 and the waste discharge baffle 7 through a purely mechanical structure, improving waste discharge efficiency and reliability while reducing energy consumption and maintenance costs. This system enhances the automation level and operational stability of textile wastewater treatment devices, and is particularly suitable for continuous operation requirements in high-frequency waste discharge scenarios.

[0036] In some examples, the slag collection component 12 adopts an annular cylindrical design (the diameter matches the bottom of the wastewater tank 1), collecting the solid-liquid mixture discharged from the waste outlet 103 in a 360° surround manner, avoiding the omission problem of traditional single-point collection and improving collection efficiency. The solid-liquid mixture undergoes initial stratification under gravity, with the liquid passing through the filter screen 15 and flowing out from the drain outlet 1201, while solid crystals are retained. The connection between the drain outlet 1201 and the water collection component 13 allows the separated liquid to directly enter the water collection system, reducing the risk of secondary pollution.

[0037] The water collecting component 13 simultaneously collects the purified water from the liquid outlet 104 and the separated water from the drain outlet 1201, forming a stratified flow channel through the annular baffle 6 to avoid disturbance when the two water streams mix. The sealing fit between the water removing component 14 and the slag collecting component 12 (using nitrile rubber sealing rings) forms a pressure chamber, applying uniform pressure to the crystals during descent, thus reducing the moisture content of the solid slag. The dewatering efficiency is improved compared to traditional natural drainage.

[0038] The lifting stroke of the dewatering component 14 is controlled by a servo motor, which can automatically adjust the pressing depth according to the thickness of the crystals. The filter screen 15 is made of stainless steel, which has high interception efficiency for crystals and a high liquid throughput, solving the problem of easy clogging of traditional filter screens. The preliminary separation of the slag collection component 12, the deep pressing of the dewatering component 14, and the precise interception of the filter screen 15 form a three-stage treatment, which reduces the water content of the solid slag and improves the liquid recovery rate.

[0039] The coordinated design of the slag collection component 12, water collection component 13, water removal component 14, and filter screen 15 constructs a closed-loop treatment system of "collection-separation-dehydration-recycling". Through mechanical structure innovation and automated control, the system improves solid-liquid separation efficiency, reduces operating costs, and enhances environmental performance.

[0040] In some examples, the slag discharge baffle 17 is vertically mounted on one side of the slag discharge port 1202. When it descends, it tightly blocks the slag discharge port 1202, preventing the crystals in the slag collecting component 12 from being discharged prematurely before dehydration or treatment is completed. When it rises, it quickly opens the slag discharge port 1202, and together with the pushing action of the rotating scraper 16, it achieves centralized slag discharge. This precise control matches the slag discharge process with the dehydration rhythm within the slag collecting component 12, ensuring a stable moisture content in the discharged crystals and improving the efficiency of subsequent solid waste treatment. The contact surface between the slag discharge baffle 17 and the slag discharge port 1202 adopts a sealing design (such as adding a rubber sealing ring). When it is lowered and closed, it can effectively prevent the leakage of liquid and odor inside the slag collection component 12, avoiding pollution to the surrounding environment. At the same time, the sealing structure reduces liquid loss, improves water resource recovery rate, and meets environmental protection and energy conservation requirements. The coordinated operation of the rotating scraper 16 and the slag discharge baffle 17 establishes an "active pushing - precise control" slag discharge system. The rotating scraper 16 ensures efficient aggregation of crystals and their pushing to the slag discharge port, while the slag discharge baffle 17 controls the timing of slag discharge and sealing, reducing the operation and maintenance costs of the equipment while ensuring the environmental friendliness and stability of the processing.

[0041] In some examples, the rotating scraper 16 abuts against the bottom of the slag collector 12, generating axial thrust during rotation to directionally push the crystals to the slag discharge port 1202. The scraper edge uses an elastic rubber strip, which can adapt to minor unevenness at the bottom of the slag collector 12, resulting in higher cleaning coverage. Especially in the edge area of ​​the annular slag collector, the scraper end effectively prevents crystal accumulation.

[0042] After the dewatering component 14 completes the pressing and rising, the slag discharge baffle 17 opens, and the rotating scraper 16 starts at the same time. The entire slag discharge cycle is short, saving cleaning time.

[0043] For intermittent dyeing and printing lines, the system can automatically adjust the slag discharge cycle according to the production rhythm. When the production line switches batches, the rapid slag discharge mode is automatically activated, which shortens the emptying time of the slag collection part 12 and improves production efficiency.

[0044] The coordinated design of the rotating scraper 16 and the slag discharge baffle 17 enables efficient discharge and precise sealing of the crystals. This system improves slag discharge efficiency, reduces energy consumption, and enhances equipment reliability and ease of maintenance.

[0045] In some examples, the air inlet 1701 introduces dry compressed air into the slag collecting component 12, forming an airflow channel between the crystals to accelerate moisture evaporation. Combined with the pressing action of the dewatering component 14, the moisture content of the solid slag is further reduced, improving the dewatering efficiency compared to single pressing.

[0046] This embodiment also proposes a textile wastewater treatment process. Textile wastewater enters the cavity 101 of the wastewater tank 1 through the inlet 102 using a textile wastewater treatment device. A buffer zone is formed in the middle of the cavity, reducing the wastewater flow rate from high to low within the pipe, thus minimizing disturbance to the crystals at the bottom. During the feeding process, a level sensor monitors the water level in the cavity in real time. Feeding automatically stops when a preset level is reached, ensuring sufficient space for subsequent treatment. The dosing device 2 is started and rotates clockwise, adding coagulant into the sewage at a uniform speed through the dosing port 201; at the same time, the agitator 3 rotates counterclockwise, and its annular arc-shaped stirring part 301 forms a shear flow field, so that the agent and sewage are uniformly mixed within 3 minutes.

[0047] Under the centrifugal force of the agitator 3, the mixed wastewater colloidal particles gradually agglomerate into crystals and are pushed towards the edge of the cavity 101. The guide plate 4 guides the crystals to the vicinity of the waste outlet 103 through a 45° inclined surface. During this process, the crystals settle naturally due to gravity and are initially separated from the clean water. The lifting baffle 5 is in the closed position, and the liquid outlet 104 is temporarily closed to ensure that the wastewater has sufficient reaction time in the cavity 101. The waste outlet baffle 7 remains closed, allowing the crystals to accumulate at the edge of the cavity and increasing their concentration. The system enters the waste discharge process. The lifting baffle 5 descends to open the liquid outlet 104. At the same time, through the linkage of the transmission rack 501 and the idler gear 502, the annular baffle 6 is driven to rise and open the through hole 602. The fixed part 601 of the annular baffle 6 drives the swinging part 8 to swing through the connecting rod 9. The pushing surface 801 pushes the waste discharge baffle 7 to open the waste discharge port 103. The crystals enter the slag collecting part 12 under the pushing force of the agitator 3. The elastic rod 10 is in a compressed state to reserve the reset force for the subsequent closing of the waste discharge baffle 7. After the crystals enter the slag collecting unit 12, the filter screen 15 filters the residual liquid (which enters the water collecting unit 13 through the drain outlet 1201), initially reducing the moisture content; the dewatering unit 14 descends and applies pressure to the crystals, and in conjunction with the dry airflow introduced through the air inlet 1701, the moisture content is further reduced. The rotating scraper 16 is activated, pushing the dehydrated crystals to the slag discharge outlet 1202. The slag discharge baffle 17 rises and opens, completing the discharge of solid waste. The clean water discharged from the outlet 104 is combined with the filtered water collected by the water collection unit 13. If reuse is required, it can be further treated by a reverse osmosis membrane for use in workshop cleaning and other processes, thereby improving the water saving rate. It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A textile wastewater treatment device, characterized in that, include: Wastewater tank (1), the wastewater tank (1) has a cavity (101), the cavity (101) has a feed inlet (102) located in the middle, a waste outlet (103) located in the lower part of the side wall and a liquid outlet (104) located at the bottom, the waste outlet (103) is a plurality of them, which are spaced apart along the bottom periphery of the cavity (101); A dosing device (2) is rotatably disposed inside the cavity (101). The dosing device (2) has a dosing port (201) located between the feed inlet (102) and the liquid outlet (104). A stirrer (3) is rotatably disposed at the bottom of the cavity (101), and the dosing device (2) rotates in the opposite direction to the stirrer (3); A guide plate (4) is provided on one side of the waste outlet (103) to guide the crystals stirred by the stirrer (3) to the edge of the cavity (101) to the waste outlet (103) for waste discharge; A lifting baffle (5) is provided at the liquid outlet (104). After the lifting baffle (5) is lowered, it is used to cancel the blocking of the liquid outlet (104). There is an installation gap (105) between the lifting baffle (5) and the peripheral wall of the liquid outlet (104). An annular baffle (6) is raised and lowered and is disposed through the installation gap (105). The annular baffle (6) is sealed to the raising baffle (5). The side wall of the annular baffle (6) has several circumferentially arranged through holes (602). Waste discharge baffle (7) is swayed and disposed on one side of the waste discharge port (103). After the waste discharge baffle (7) sways, it is used to block or unblock the waste discharge port (103). After the lifting baffle (5) descends, it drives the annular baffle (6) to rise, which drives the waste discharge baffle (7) to sway and open the waste discharge port (103) to realize liquid discharge. The bottom of the lifting baffle (5) and the annular baffle (6) are provided with oppositely arranged transmission racks (501). The two transmission racks (501) are meshed with the same idler gear (502) to realize the opposite movement of the lifting baffle (5) and the annular baffle (6).

2. The textile wastewater treatment device according to claim 1, characterized in that, The stirrer (3) has a ring structure and an arc-shaped stirring part (301) at the upper end. There are several arc-shaped stirring parts (301) arranged evenly along the circumference of the stirrer (3). A rectification gap (302) is formed between two adjacent arc-shaped stirring parts (301).

3. The textile wastewater treatment device according to claim 1, characterized in that, The bottom of the annular baffle (6) also has a fixing part (601), and the textile wastewater treatment device further includes: The oscillating component (8) has an oscillating groove (106) at the bottom of the sewage tank (1). The oscillating component (8) is oscillatingly disposed in the oscillating groove (106). The oscillating component (8) has a pushing surface (801). The pushing surface (801) abuts against the waste discharge baffle (7). After the oscillating component (8) oscillates, the pushing surface (801) pushes the waste discharge baffle (7) to open the waste discharge port (103). The bottom of the oscillating component (8) has a hinge part (802). A connecting rod (9) is oscillatingly disposed at the bottom of the sewage tank (1). One end of the connecting rod (9) is hinged to the fixed part (601), and the other end is hinged to the hinge part (802). After the connecting rod (9) oscillates, it is used to drive the waste discharge baffle (7) to open the waste discharge port (103). An elastic rod (10) is provided, with one end acting on the waste discharge baffle (7) and the other end acting on the guide plate (4) to provide the force for the waste discharge baffle (7) to close the waste discharge port (103).

4. The textile wastewater treatment device according to claim 1, characterized in that, Also includes: The slag collection component (12) is an annular cylinder, which is located below the sewage tank (1) and is used to collect the solid-liquid mixture discharged from the waste outlet (103). The bottom of the slag collection component (12) has a drain outlet (1201). A water collection device (13) is provided below the liquid outlet (104), and the drain outlet (1201) is connected to the water collection device (13) for collecting the liquid flowing out of the liquid outlet (104) and the drain outlet (1201); Water removal component (14) is raised and lowered inside the slag collection component (12) and sealed with the slag collection component (12). After the water removal component (14) descends, it is used to remove water from the slag collection component (12). A filter screen (15) is disposed above the drain outlet (1201) to prevent crystals from entering the water collection device (13) through the drain outlet (1201).

5. A textile wastewater treatment device according to claim 4, characterized in that, The slag collection component (12) has a slag discharge port (1202) on its side, and the textile wastewater treatment device further includes: A rotating scraper (16) is provided to rotate along the axis of the slag collecting member (12). After rotation, the scraper pushes the crystals at the bottom of the slag collecting member (12) out of the slag discharge port (1202). Slag discharge baffle (17) is raised and lowered on one side of the slag discharge port (1202). After the slag discharge baffle (17) is lowered, it is used to block the slag discharge port (1202).

6. A textile wastewater treatment device according to claim 5, characterized in that, The slag discharge baffle (17) is provided with an air inlet (1701), which is used to introduce air into the slag collection component (12). When the water removal component (14) is raised or lowered, it passes through the side of the air inlet (1701).

7. A textile wastewater treatment device according to claim 1, characterized in that, The dosing device (2) has an arc-shaped dosing section (202), and the lower end face of the arc-shaped dosing section (202) has the dosing port (201).

8. A textile wastewater treatment process, characterized in that, Using the textile wastewater treatment apparatus according to any one of claims 2 to 7 includes the following steps: S1: Textile wastewater enters the cavity (101) through the inlet (102) of the wastewater tank (1) of the textile wastewater treatment device, and the buffer zone formed in the middle of the cavity reduces the flow rate of wastewater; the water level in the cavity is monitored by a liquid level sensor, and feeding is automatically stopped when the preset liquid level is reached; S2: Dosing and mixing of chemicals: Start the dosing device (2) and rotate it clockwise to add coagulant into the sewage at a uniform speed through the dosing port (201); at the same time, start the agitator (3) and rotate it counterclockwise to form a shear flow field using the arc-shaped stirring part (301) with an annular structure, so that the chemicals and sewage are uniformly mixed. S3: Coagulation, Separation and Enrichment: Under the centrifugal force of the stirrer (3), the mixed wastewater causes colloidal particles to coagulate into crystals and be pushed to the edge of the cavity (101); the crystals are guided to the vicinity of the waste outlet (103) by the inclined surface of the guide plate (4), and the crystals settle naturally due to gravity to achieve preliminary separation from the clean water; during this process, the lifting baffle (5) is kept in the closed position to close the liquid outlet (104), and the waste outlet baffle (7) is kept in the closed state so that the crystals are enriched at the edge of the cavity.

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