Annealing wastewater treatment system

Abstract

The invention relates to an annealing wastewater treatment system, comprising: a storage assembly for storing annealing wastewater; the conveying assembly is used for conveying the annealing wastewater in the storage assembly; the conveying assembly is connected with the storage assembly; the neutralization assembly is used for neutralizing the annealing wastewater; the neutralizing assembly is connected with the conveying assembly; the reaction assembly is used for reacting a coagulant with suspended solids in the annealing wastewater; the reaction assembly is connected with the neutralization assembly; the precipitation component is used for precipitating suspended matters; the precipitation assembly is connected with the reaction assembly; the sludge storage assembly is used for storing suspended matters; the sludge storage assembly is connected with the precipitation assembly; the filtering assembly is used for filtering impurities; the filtering assembly is respectively connected with the conveying assembly and the precipitation assembly; the collecting assembly is used for storing the filtered water; and the collecting assembly is connected with the filtering assembly. The related indexes of the treated raw water all accord with the related index range.

Description

Technical Field

[0001] The invention relates to the technical field of wastewater treatment, and in particular to an annealing wastewater treatment system. Background Art

[0002] A certain amount of wastewater will be generated during the alloy heat treatment process, which mainly comes from alkali leaching, pickling, passivation and other links. The characteristics of heat treatment wastewater are as follows:

[0003] (1) Diverse sources: Wastewater comes from multiple processes, such as pickling, quenching, tempering, cleaning, etc., so the composition is complex and diverse;

[0004] (2) There are many types of pollutants: wastewater contains a variety of pollutants such as barium salts, nitrate salts, mineral oils, acid and alkali substances, etc. These substances have different chemical properties and toxicity;

[0005] (3) Large discharge volume: Especially in large-scale heat treatment plants, the amount of wastewater generated is usually large;

[0006] (4) Difficulty in treatment: Since wastewater contains multiple pollutants at high concentrations, it is relatively difficult to treat and requires a combination of multiple treatment technologies.

[0007] According to the characteristics of thermal treatment wastewater, the treatment process usually includes the following steps:

[0008] (1) Pretreatment: The wastewater is first cooled by cooling towers or cooling pools to room temperature or lower temperatures for subsequent treatment. At the same time, larger solid impurities are removed through the screen to prevent clogging of subsequent treatment equipment;

[0009] (2) Oil-water separation: Use physical methods, such as gravity sedimentation, centrifugal separation or flotation, to remove floating oil from wastewater. For emulsions, demulsifiers can be used to break the emulsions, so that the oil droplets can be coalesced before oil removal;

[0010] (3) Flocculation and sedimentation: Adding flocculants to wastewater helps suspended matter to condense into larger particles, which are then easily precipitated or filtered out;

[0011] (4) Chemical treatment: adjusting the pH of wastewater by adding acid or alkali, and removing specific pollutants by adding oxidants or reducing agents;

[0012] (5) Advanced treatment: Depending on the effluent quality requirements, it may be necessary to use advanced oxidation processes such as activated carbon adsorption and membrane separation technology (such as ultrafiltration and reverse osmosis) to further purify the water quality;

[0013] (6) Biological treatment: For certain pollutants suitable for biodegradation, biochemical treatment technologies, such as activated sludge method and biological filter, can be used to remove organic matter.

[0014] However, the traditional method is cumbersome and costly, so it needs to be improved. Summary of the invention

[0015] In view of this, the present invention provides an annealing wastewater treatment system.

[0016] Specifically, the present invention is achieved through the following technical solutions:

[0017] According to a first aspect of the present invention, there is provided an annealing wastewater treatment system, comprising:

[0018] A storage component, used for storing annealing wastewater;

[0019] A conveying component, used for conveying the annealing wastewater in the storage component; the conveying component is connected to the storage component;

[0020] A neutralization component, used for neutralizing the annealing wastewater; the neutralization component is connected to the conveying component;

[0021] A reaction component, used for the reaction between the coagulant and the suspended matter in the annealing wastewater; the reaction component is connected to the neutralization component;

[0022] A precipitation component, used for settling suspended matter; the precipitation component is connected to the reaction component;

[0023] A sludge storage component is used to store suspended matter; the sludge storage component is connected to the sedimentation component;

[0024] A filtering component, used for filtering impurities; the filtering component is connected to the conveying component and the precipitation component respectively;

[0025] The collecting component is used for storing filtered water; the collecting component is connected to the filtering component.

[0026] Optionally, the storage component includes: a water collection tank, and the water collection tank is connected to the conveying component.

[0027] Optionally, the conveying assembly comprises: a regulating tank and a water collection tank lifting pump, wherein the water collection tank lifting pump is respectively connected to the regulating tank and the water collection tank in the storage assembly.

[0028] Optionally, the neutralization component includes: a neutralization reaction tank, a regulating tank lifting pump and a first doser, wherein the regulating tank lifting pump is respectively connected to the regulating tank and the neutralization reaction tank in the conveying component, and the neutralization reaction tank is connected to the first doser.

[0029] Optionally, the reaction component includes: a coagulation reaction tank and a second doser, wherein the coagulation reaction tank is connected to the neutralization reaction tank and the second doser in the neutralization component respectively.

[0030] Optionally, the sedimentation component includes: an inclined tube sedimentation tank, and the inclined tube sedimentation tank is connected to the coagulation reaction tank in the reaction component.

[0031] Optionally, the sludge storage component includes: a sludge tank, which is connected to the inclined tube sedimentation tank in the sedimentation component.

[0032] Optionally, the filtration component includes: a sedimentation water tank, a filter lift pump, a quartz sand filter, an activated carbon filter, a water softener, an ultrafiltration unit, an intermediate water tank and a reverse osmosis unit, wherein the sedimentation water tank is respectively connected to the filter lift pump and the inclined tube sedimentation tank in the sedimentation component, the quartz sand filter is respectively connected to the filter lift pump, the activated carbon filter and the regulating tank in the conveying component, the activated carbon filter is respectively connected to the water softener and the regulating tank, the ultrafiltration unit is respectively connected to the water softener and the intermediate water tank, and the intermediate water tank is connected to the reverse osmosis unit.

[0033] Optionally, the collection component includes: a recycling water tank, and the recycling water tank is connected to the reverse osmosis unit in the filtering component.

[0034] Optionally, the filter assembly further comprises: a filter backwash pump, wherein the filter backwash pump is respectively connected to the quartz sand filter, the activated carbon filter, the water softener and a recycled water tank in the collection assembly.

[0035] The technical solution provided by the present invention brings at least the following beneficial effects:

[0036] The annealing wastewater treatment system provided in the present application shows an innovative wastewater treatment process design, which aims to solve the problems of cumbersome process and high cost in the traditional annealing wastewater treatment method. Storage component: used to temporarily store the wastewater generated from the annealing process to ensure that the wastewater is properly kept before treatment. Through centralized storage, it is easy to manage and subsequently treat. Transport component: transport the annealing wastewater in the storage component to the subsequent treatment component to achieve continuous and stable transportation of wastewater and improve treatment efficiency. Neutralization component: neutralize the annealing wastewater and adjust its pH value to a suitable range to create favorable conditions for subsequent treatment steps and reduce the difficulty and cost of treatment. Reaction component: add coagulant to make the suspended matter in the annealing wastewater react chemically with the coagulant to form flocs that are easy to precipitate, remove the suspended matter in the wastewater through chemical reaction, and improve the water quality. Sedimentation component: use gravity to make the suspended matter after the reaction settle to the bottom, achieve preliminary purification of the wastewater, remove most of the suspended matter in the wastewater through physical precipitation, and reduce the difficulty of subsequent treatment. Sludge storage component: Store the sludge precipitated in the sedimentation component for subsequent treatment or disposal, avoid sludge pollution to the environment, and facilitate the reuse or safe disposal of sludge. Filter component: Filter the precipitated wastewater to remove fine suspended matter and impurities, further improve the water quality, and ensure that the effluent meets the discharge standard or reuse requirements. Collection component: Store the filtered water for subsequent use or discharge, realize the resource utilization of wastewater, and reduce the waste of water resources. On the one hand, through modular design, the wastewater treatment process is decomposed into multiple independent components, each component completes a specific treatment task, making the treatment process clearer and simpler. On the other hand, by optimizing the treatment process, reducing unnecessary treatment steps and the use of chemicals, reducing treatment costs, and at the same time, by improving treatment efficiency, reducing energy consumption and labor costs. Thirdly, the color, smell and taste, turbidity, chloride, nitrate, hexavalent chromium, mercury, sodium, total hardness, manganese, iron, arsenic, cadmium, lead, TDS and other related indicators in the raw water treated by the system are in line with the relevant indicator range. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0038] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or related technical descriptions are briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0039] Figure 1 A schematic structural diagram of an annealing wastewater treatment system provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] Figure 1 An annealing wastewater treatment system suitable for an embodiment of the present invention is schematically shown.

[0042] Reference Figure 1 As shown, the present application provides an annealing wastewater treatment system, comprising:

[0043] A storage component, used for storing annealing wastewater;

[0044] A conveying component, used for conveying the annealing wastewater in the storage component; the conveying component is connected to the storage component;

[0045] A neutralization component, used for neutralizing the annealing wastewater; the neutralization component is connected to the conveying component;

[0046] A reaction component, used for the reaction between the coagulant and the suspended matter in the annealing wastewater; the reaction component is connected to the neutralization component;

[0047] A precipitation component, used for settling suspended matter; the precipitation component is connected to the reaction component;

[0048] A sludge storage component is used to store suspended matter; the sludge storage component is connected to the sedimentation component;

[0049] A filtering component, used for filtering impurities; the filtering component is connected to the conveying component and the precipitation component respectively;

[0050] The collecting component is used for storing filtered water; the collecting component is connected to the filtering component.

[0051] In the embodiment of the present application, the annealing wastewater stored in the storage component enters the neutralization component through the conveying component to be neutralized, the neutralized solution enters the reaction component to react with the coagulant to form larger particles, the solution after the reaction enters the precipitation component, the larger particles are precipitated and enter the sludge storage component for storage, the precipitated solution enters the filtration component for further filtration, and then the filtered water enters the collection component for aggregation for use. System integration: Integrate multiple processing components into one system to achieve continuity and automation of wastewater treatment and improve treatment efficiency. Process optimization: Through reasonable process design, avoid processing bottlenecks and redundant steps that may occur in traditional methods and reduce processing costs. Environmental friendliness: By reducing the amount of reagents used and improving the quality of effluent water, the negative impact on the environment is reduced, which meets the requirements of sustainable development. In summary, this annealing wastewater treatment system achieves high efficiency, low cost and environmental friendliness in wastewater treatment through modular design, process optimization and system integration.

[0052] Exemplarily, the storage component includes: a water collection tank, which is connected to the conveying component.

[0053] In the annealing wastewater treatment system, the storage component plays a vital role. It is responsible for collecting and temporarily storing the wastewater generated from the annealing process to ensure the smooth progress of the subsequent treatment steps. The storage component includes a sump, which is connected to the conveying component. As the starting point of wastewater treatment, the main function of the sump is to collect wastewater generated from the annealing process, which may contain various pollutants such as suspended matter, heavy metal ions, organic matter, etc. Before the wastewater is transported to the subsequent treatment components, the sump provides a temporary storage space, which helps to balance the difference between the rate of wastewater generation and the treatment capacity of the treatment system, ensuring the continuity and stability of the treatment process. The sump can also play a role in regulating water quality. By mixing wastewater generated in different time periods, the fluctuation of wastewater quality can be reduced, providing more stable water quality conditions for subsequent treatment. In some cases, the sump can also be used as a preliminary sedimentation tank. The wastewater stays in the sump for a period of time, and some suspended matter in it may settle to the bottom due to gravity, thereby reducing the burden on subsequent treatment components. The water collection tank is connected to the conveying component through appropriate pipes and pumping stations, so that when the wastewater accumulates to a certain amount, the conveying component can be started to extract the wastewater from the water collection tank and transport it to the subsequent treatment component. The role of the conveying component: The main function of the conveying component is to transport the wastewater in the water collection tank to the subsequent treatment component, which usually involves the use of pumps to ensure that the wastewater can be transported to the treatment system at an appropriate pressure and flow rate. Through the close connection with the water collection tank, the conveying component ensures the continuity and efficiency of wastewater treatment. Once the wastewater in the water collection tank reaches a certain water level or quantity, the conveying component will start and transport the wastewater to the next treatment step. Comprehensive benefits: The water collection tank is used as part of the storage component and is closely connected with the conveying component, which can realize the automation and continuity of wastewater treatment, which reduces the intervention of manual operation and improves the treatment efficiency. In addition, this design also helps to reduce treatment costs. By optimizing the collection and transportation process of wastewater, it can reduce the waste of energy and water resources, while reducing the operation and maintenance costs of the treatment system.

[0054] Exemplarily, the conveying assembly includes: a regulating tank and a water collection tank lifting pump, wherein the water collection tank lifting pump is respectively connected to the regulating tank and the water collection tank in the storage assembly.

[0055] In the annealing wastewater treatment system, the conveying component plays a key role in conveying wastewater from the storage component to the subsequent treatment component. The conveying component includes a regulating tank and a sump lift pump, wherein the sump lift pump is connected to the regulating tank and the sump in the storage component respectively. The main function of the regulating tank is to receive wastewater from the sump and make preliminary adjustments to the water quality of the wastewater through appropriate residence time and mixing process, which helps to balance the concentration of pollutants in the wastewater and provide more stable water quality conditions for subsequent treatment. By accumulating a certain amount of wastewater in the regulating tank, the flow of wastewater can be regulated, which helps to balance the difference between the rate of wastewater generation and the processing capacity of the treatment system, ensuring the continuity and stability of the treatment process. In some cases, the regulating tank can also be used as a preliminary sedimentation tank. The wastewater stays in the regulating tank for a period of time, and some of the suspended matter in it may settle to the bottom due to gravity, thereby reducing the burden on the subsequent treatment components. The main function of the sump lift pump is to extract the wastewater from the sump and transport it to the regulating tank, which usually involves the use of a pump to ensure that the wastewater can be transported to the next treatment step at an appropriate pressure and flow rate. The sump lifting pump is connected to the sump and regulating tank through pipelines. This connection method ensures that the wastewater can be smoothly transported from the sump to the regulating tank, realizing the continuity and automation of wastewater treatment. The sump lifting pump is usually equipped with a control system that can adjust the operating status of the pump according to the water level in the sump or the rate of wastewater generation, which helps to ensure the timeliness and efficiency of wastewater treatment. Comprehensive benefits: Taking the regulating tank and sump lifting pump as the core part of the conveying component and closely connecting them with the sump in the storage component can realize the automation, continuity and efficiency of wastewater treatment, which reduces the intervention of manual operation and improves the treatment efficiency. Through the water quality and flow regulation of the regulating tank, the stable operation of the subsequent treatment components can be ensured, while reducing the treatment cost. In addition, this design also helps to reduce energy consumption and waste of water resources, and improve the environmental protection and sustainability of wastewater treatment.

[0056] Exemplarily, the neutralization component includes: a neutralization reaction tank, a regulating tank lifting pump and a first doser, wherein the regulating tank lifting pump is respectively connected to the regulating tank and the neutralization reaction tank in the conveying component, and the neutralization reaction tank is connected to the first doser.

[0057] In the annealing wastewater treatment system, the main task of the neutralization component is to adjust the pH value of the wastewater to ensure that the subsequent treatment steps can be carried out under the most suitable conditions. The neutralization component includes a neutralization reaction tank, a regulating tank lift pump and a first doser, which work together through a specific connection method. The main function of the neutralization reaction tank is to receive wastewater from the regulating tank and adjust the pH value of the wastewater by adding appropriate chemicals (such as acid or alkali), which helps to neutralize the acidic or alkaline substances in the wastewater and provide more suitable water quality conditions for subsequent treatment. The neutralization reaction tank provides sufficient space and time for the added chemicals to fully mix and react with the wastewater, which ensures accurate adjustment of the pH value and reduces possible problems in subsequent treatment steps. The neutralization reaction tank is usually equipped with an outlet and a control system, which can control the flow rate and rate of the effluent according to the pH adjustment of the wastewater, which helps to ensure the continuity and stability of wastewater treatment. The main function of the regulating tank lifting pump is to extract wastewater from the regulating tank and transport it to the neutralization reaction tank, which ensures that the wastewater can be smoothly transferred from the regulating tank to the neutralization reaction tank, and realizes the continuity and automation of wastewater treatment. The regulating tank lifting pump is connected to the regulating tank and the neutralization reaction tank through pipelines respectively. This connection method ensures that the wastewater can be transported according to the predetermined path and flow rate, avoiding leakage and waste of wastewater. The regulating tank lifting pump is usually equipped with a flow control system, which can adjust the delivery rate of wastewater according to the needs of the neutralization reaction tank, which helps to ensure the efficiency and quality of wastewater treatment in the neutralization reaction tank. The main function of the first doser is to add an appropriate amount of chemical agents (such as acid or alkali) to the neutralization reaction tank, which are used to adjust the pH value of the wastewater and ensure that the wastewater maintains appropriate chemical properties during the treatment process. The first doser is usually equipped with a precise metering and control system, which can accurately control the amount of agent added according to the pH value of the wastewater and the needs of the neutralization reaction tank, which helps to avoid waste and excessive use of agents, while ensuring the accuracy and stability of wastewater treatment. The first doser is connected to the neutralization reaction tank through a pipeline and is usually equipped with monitoring equipment to monitor the pH value of the wastewater and the addition of the reagent in real time, which helps to promptly discover and deal with possible problems and ensure the continuity and efficiency of wastewater treatment. Comprehensive benefits: The neutralization reaction tank, the regulating tank lift pump and the first doser are the core parts of the neutralization component and are closely connected with the regulating tank in the conveying component, which can realize the automation, continuity and precision of wastewater treatment, which improves the treatment efficiency and quality while reducing the treatment cost. By accurately controlling the amount of reagent added and the delivery rate of the wastewater, the wastewater treatment process in the neutralization reaction tank can be ensured to be stable and reliable, and the impact on the environment can be reduced. In addition, this design also helps to improve the flexibility and adaptability of wastewater treatment, and can cope with changes in different water quality and treatment requirements.

[0058] Exemplarily, the reaction component includes: a coagulation reaction tank and a second dosing device, wherein the coagulation reaction tank is connected to the neutralization reaction tank and the second dosing device in the neutralization component respectively.

[0059] In the annealing wastewater treatment system, the main task of the reaction component is to promote the coagulation and flocculation reaction of suspended matter, colloidal substances, etc. in the wastewater by adding coagulants, so as to facilitate the subsequent precipitation and filtration treatment. The reaction component includes a coagulation reaction tank and a second doser, which work together with each other and with the neutralization reaction tank of the neutralization component through a specific connection method. The main function of the coagulation reaction tank is to receive wastewater from the neutralization reaction tank and add coagulants (such as iron salts, aluminum salts, etc.) to cause coagulation and flocculation reactions of suspended matter, colloidal substances, etc. in the wastewater. These reactions form larger particles or flocs, which are convenient for subsequent precipitation treatment. The coagulation reaction tank provides sufficient mixing and reaction space so that the added coagulant and wastewater are fully mixed and reacted, which ensures the accuracy and stability of the coagulation effect. The coagulation reaction tank is usually equipped with an outlet and a control system, which can adjust the flow rate and rate of the effluent according to the coagulation effect of the wastewater, which helps to ensure the continuity and stability of the wastewater treatment. The main function of the second doser is to add an appropriate amount of coagulant to the coagulation reaction tank. These coagulants are used to promote the coagulation and flocculation of suspended matter, colloidal substances, etc. in the wastewater to form particles or flocs that are easy to precipitate. The second doser is usually equipped with a precise metering and control system, which can accurately control the amount of coagulant added according to the nature of the wastewater, the needs of the coagulation reaction tank and the treatment objectives, which helps to avoid waste and excessive use of coagulants, while ensuring the accuracy and stability of wastewater treatment. The second doser is connected to the coagulation reaction tank through a pipeline, and is usually equipped with monitoring equipment to monitor the coagulation effect of the wastewater and the addition of coagulants in real time, which helps to promptly discover and deal with possible problems and ensure the continuity and efficiency of wastewater treatment. The coagulation reaction tank is connected to the neutralization reaction tank through a pipeline to receive wastewater from the neutralization reaction tank, which ensures that the wastewater undergoes coagulation reaction after neutralization treatment, providing more stable water quality conditions for subsequent precipitation and filtration treatment. After the wastewater in the neutralization reaction tank is adjusted to a suitable pH value, it is transported to the coagulation reaction tank through a pipeline to react with the added coagulant. This connection method ensures the continuity and automation of wastewater treatment. Comprehensive benefits: The coagulation reaction tank and the second doser are used as the core part of the reaction component and are closely connected with the neutralization reaction tank of the neutralization component, which can realize the automation, continuity and precision of wastewater treatment. This improves the treatment efficiency and quality while reducing the treatment cost. By accurately controlling the amount of coagulant added and the mixing reaction process of the wastewater, the wastewater treatment effect in the coagulation reaction tank can be ensured to be stable and reliable, and the impact on the environment can be reduced. In addition, this design also helps to improve the flexibility and adaptability of wastewater treatment, and can cope with changes in different water quality and treatment requirements.

[0060] Exemplarily, the sedimentation component includes: an inclined tube sedimentation tank, which is connected to the coagulation reaction tank in the reaction component.

[0061] In the embodiment of the present application, the core part of the sedimentation component is the inclined tube sedimentation tank, which is closely connected with the coagulation reaction tank in the reaction component, and together constitutes an important link in the wastewater treatment process. The main task of the inclined tube sedimentation tank is to use gravity to make the suspended matter, colloidal substances in the wastewater and flocs formed after the coagulation reaction settle to the bottom. The design of the inclined tube increases the sedimentation area and improves the sedimentation efficiency by using the laminar flow principle. After the wastewater flows into the inclined tube sedimentation tank from the coagulation reaction tank, the water flow speed slows down due to the increase in the inclination angle and surface area of ​​the inclined tube. The suspended matter and flocs gradually settle to the bottom under the action of gravity. At the same time, the water flow between the inclined tubes forms a laminar flow state, which reduces the turbulence and eddy current of the water flow, which is conducive to the stable precipitation of suspended matter. The inclined tube sedimentation tank is directly connected to the coagulation reaction tank through a pipeline to ensure that the wastewater can smoothly enter the sedimentation tank for sedimentation treatment after the coagulation reaction. This connection method ensures the continuity and automation of wastewater treatment. The main task of the coagulation reaction tank is to add coagulants to the wastewater so that the suspended matter, colloidal substances, etc. in the wastewater can coagulate and flocculate to form larger particles or flocs, which are convenient for subsequent sedimentation treatment. After the wastewater enters the coagulation reaction tank, the coagulant is added and properly mixed and stirred to make the coagulant react chemically with the suspended matter, colloidal substances, etc. in the wastewater to form larger particles or flocs, which are easy to remove in the subsequent sedimentation process. The coagulation reaction tank is connected to the inclined tube sedimentation tank through a pipeline to ensure that the wastewater can directly flow into the sedimentation tank for sedimentation treatment after the coagulation reaction. This connection method ensures the continuity and efficiency of wastewater treatment. Comprehensive benefits: Improve treatment efficiency: The close connection between the inclined tube sedimentation tank and the coagulation reaction tank enables the wastewater to undergo coagulation reaction and sedimentation treatment continuously and efficiently, improving the efficiency and quality of wastewater treatment. Reduce floor space: The design of the inclined tube sedimentation tank greatly increases the sedimentation area, while reducing the floor space and improving the space utilization of the wastewater treatment system. Reduce operating costs: By optimizing the design and connection method of the sedimentation tank, the operating cost of the wastewater treatment system can be reduced and the economic benefits can be improved.

[0062] Exemplarily, the sludge storage component includes: a sludge tank, which is connected to the inclined tube sedimentation tank in the sedimentation component.

[0063] In an embodiment of the present application, the sludge storage component is mainly composed of a sludge tank, and a direct connection is established between the sludge tank and the inclined tube sedimentation tank of the sedimentation component. As the main storage place for sludge, the sludge tank has a key role in receiving and temporarily storing sludge from the inclined tube sedimentation tank. The sludge contains suspended matter, colloidal substances, flocs produced by coagulation reactions and other impurities that are precipitated during the wastewater treatment process. When the sludge in the inclined tube sedimentation tank accumulates to a certain extent, it will be transported to the sludge tank through a sludge discharge pipeline. In the sludge tank, the sludge will be further precipitated, concentrated and stabilized to reduce its volume and reduce its potential impact on the environment. The sludge tank is connected to the inclined tube sedimentation tank through a sludge discharge pipeline, ensuring that the sludge can be smoothly transferred from the sedimentation tank to the sludge tank, avoiding the accumulation and overflow of sludge, and ensuring the stable operation of the wastewater treatment system. The inclined tube sedimentation tank is a key equipment in the wastewater treatment process. Its main function is to use gravity to make the suspended matter, colloidal substances and flocs formed after coagulation reaction in the wastewater settle to the bottom to form sludge. After the wastewater flows from the coagulation reaction tank into the inclined tube sedimentation tank, the water flow rate slows down due to the increase in the inclination angle and surface area of ​​the inclined tube. The suspended matter and flocs gradually settle to the bottom under the action of gravity. As the sedimentation process proceeds, the sludge layer will gradually thicken. When it reaches a certain thickness, it needs to be discharged into the sludge tank through the sludge discharge pipe for further treatment. The inclined tube sedimentation tank is connected to the sludge tank through the sludge discharge pipe. This connection method ensures that the sludge can be continuously and stably transferred from the sedimentation tank to the sludge tank, which provides convenience for subsequent sludge treatment. Comprehensive benefits: Improve treatment efficiency: The close connection between the sludge tank and the inclined tube sedimentation tank enables the sludge to be discharged from the sedimentation tank in a timely and effective manner, avoiding the accumulation and overflow of sludge and improving the overall treatment efficiency of the wastewater treatment system. Reduce operating costs: By optimizing the design and connection method of sludge discharge pipes, the energy consumption and wear during sludge transportation can be reduced, and the operating costs of the wastewater treatment system can be reduced. Protect the environment: The sludge in the sludge pool will be further stabilized to reduce its potential impact on the environment. This design helps to protect the ecological environment and achieve sustainable development of wastewater treatment.

[0064] Exemplarily, the filtration component includes: a sedimentation water tank, a filter lift pump, a quartz sand filter, an activated carbon filter, a water softener, an ultrafiltration unit, an intermediate water tank and a reverse osmosis unit, wherein the sedimentation water tank is respectively connected to the filter lift pump and the inclined tube sedimentation tank in the sedimentation component, the quartz sand filter is respectively connected to the filter lift pump, the activated carbon filter and the regulating tank in the conveying component, the activated carbon filter is respectively connected to the water softener and the regulating tank, the ultrafiltration unit is respectively connected to the water softener and the intermediate water tank, and the intermediate water tank is connected to the reverse osmosis unit.

[0065] In the embodiment of the present application, the supernatant water of the inclined tube sedimentation tank enters the sedimentation water tank and is lifted to the subsequent filter by the filter lifting pump: the sewage first enters the quartz sand filter to remove impurities such as suspended matter and colloids in the water, and the quartz sand filter water enters the activated carbon filter, which is used to filter out chemical organic matter, heavy metals, chroma, odor, residual chlorine, etc. in the water; the activated carbon filter water enters the water softener, which is used to remove calcium and magnesium ions in the water, reduce the hardness of the water, and reduce the scaling of the concentrated water side of the subsequent ultrafiltration membrane and reverse osmosis membrane. The water from the water softener enters the ultrafiltration unit, which can remove almost all bacteria, microorganisms, viruses, Escherichia coli, some macromolecular organic matter and all insoluble colloids in the water, so that the turbidity of the treated water is ≤0.2NTU and SDI ≤3. The water from the ultrafiltration unit enters the reverse osmosis unit after being transferred through the intermediate water tank. The reverse osmosis unit can remove most of the inorganic salts, particles, bacteria, viruses and other soluble substances in the water, so that the water is finally purified.

[0066] Exemplarily, the collection component includes: a recycling water tank, and the recycling water tank is connected to the reverse osmosis unit in the filtering component.

[0067] In the embodiment of the present application, the reverse osmosis effluent enters the reuse water tank for storage and is supplied to the water use point through the water supply pump.

[0068] Exemplarily, the filter assembly further includes: a filter backwash pump, wherein the filter backwash pump is respectively connected to the quartz sand filter, the activated carbon filter, the water softener and a recycled water tank in the collection assembly.

[0069] In an embodiment of the present application, the filter backwash pump can use the water in the recycled water tank to clean the quartz sand filter, the activated carbon filter, and the water softener.

[0070] The color, smell and taste, turbidity, chloride, nitrate, hexavalent chromium, mercury, sodium, total hardness, manganese, iron, arsenic, cadmium, lead, TDS and other related indicators of the raw water treated by the annealing wastewater treatment system provided in the present application all meet the relevant indicator ranges.

[0071] It should be noted that, in the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0072] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0073] In addition, the terms "installed", "set", "provided with", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0074] In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise specified, "plurality" means two or more.

[0075] The foregoing is merely a specific embodiment of the present invention, which enables those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features claimed herein.

Claims

1. An annealing wastewater treatment system, characterized in that: include: A storage component, used for storing annealing wastewater; A conveying component, used for conveying the annealing wastewater in the storage component; the conveying component is connected to the storage component; A neutralization component, used for neutralizing annealing wastewater; The neutralization component is connected to the conveying component; A reaction component, used for the reaction between the coagulant and the suspended matter in the annealing wastewater; the reaction component is connected to the neutralization component; A precipitation component, used for settling suspended matter; the precipitation component is connected to the reaction component; A sludge storage component is used to store suspended matter; the sludge storage component is connected to the sedimentation component; A filter assembly, used for filtering impurities; the filter assembly is connected to the conveying assembly and the precipitation assembly respectively; a collection assembly for storing filtered water; The collecting component is connected to the filtering component.

2. The annealing wastewater treatment system according to claim 1, characterized in that: The storage component includes: a water collection tank, and the water collection tank is connected to the conveying component.

3. The annealing wastewater treatment system according to claim 1, characterized in that: The conveying assembly comprises: a regulating tank and a water collection tank lifting pump, wherein the water collection tank lifting pump is respectively connected to the regulating tank and the water collection tank in the storage assembly.

4. The annealing wastewater treatment system according to claim 1, characterized in that: The neutralization component includes: a neutralization reaction tank, a regulating tank lifting pump and a first doser, wherein the regulating tank lifting pump is respectively connected to the regulating tank and the neutralization reaction tank in the conveying component, and the neutralization reaction tank is connected to the first doser.

5. The annealing wastewater treatment system according to claim 1, characterized in that: The reaction component comprises: a coagulation reaction tank and a second doser, wherein the coagulation reaction tank is connected to the neutralization reaction tank and the second doser in the neutralization component respectively.

6. The annealing wastewater treatment system according to claim 1, characterized in that: The sedimentation component comprises: an inclined tube sedimentation tank, and the inclined tube sedimentation tank is connected to the coagulation reaction tank in the reaction component.

7. The annealing wastewater treatment system according to claim 1, characterized in that: The sludge storage component comprises: a sludge tank, and the sludge tank is connected to the inclined tube sedimentation tank in the sedimentation component.

8. The annealing wastewater treatment system according to claim 1, characterized in that: The filtration component includes: a sedimentation water tank, a filter lift pump, a quartz sand filter, an activated carbon filter, a water softener, an ultrafiltration unit, an intermediate water tank and a reverse osmosis unit, wherein the sedimentation water tank is respectively connected to the filter lift pump and the inclined tube sedimentation tank in the sedimentation component, the quartz sand filter is respectively connected to the filter lift pump, the activated carbon filter and the regulating tank in the conveying component, the activated carbon filter is respectively connected to the water softener and the regulating tank, the ultrafiltration unit is respectively connected to the water softener and the intermediate water tank, and the intermediate water tank is connected to the reverse osmosis unit.

9. The annealing wastewater treatment system according to claim 1, characterized in that: The collection component comprises a recycling water tank, and the recycling water tank is connected to the reverse osmosis unit in the filtering component.

10. The annealing wastewater treatment system according to claim 8, characterized in that: The filter assembly further comprises: a filter backwash pump, and the filter backwash pump is respectively connected to the quartz sand filter, the activated carbon filter, the water softener and the recycled water tank in the collection assembly.

Images