Liquid hazardous waste full-process automatic work and real-time supervision system and method

Abstract

The invention relates to the field of liquid hazardous waste management, in particular to a liquid hazardous waste full-process automatic work and real-time supervision system and method. The system is remotely controlled by adopting a DCS (Distributed Control System), and is characterized by comprising a first hazardous waste working route, a second hazardous waste working route and a real-time supervision system, according to the invention, the problems of collection and real-time supervision of liquid hazardous wastes are solved; the liquid hazardous waste full-process real-time monitoring system realizes liquid hazardous waste full-process real-time monitoring of automatic collection and transportation of a liquid hazardous waste generation end, real-time monitoring of a storage tank, automatic generation and data verification of a digital machine account, information sharing of each link of the whole process and early warning and alarm integration, dynamically masters the liquid hazardous waste disposal process of the whole plant, realizes liquid hazardous waste full-process informatization management, and improves the working efficiency. The efficiency of collection, transportation, storage facility management, utilization processing and data acquisition of the liquid hazardous waste is improved, the consumption of manpower and material resources is reduced, information sharing of each link is realized, and the disposal efficiency is improved.

Description

Technical Field

[0001] The patent of this invention relates to the field of liquid hazardous waste management, and in particular to a full-process automation and real-time monitoring system and method for liquid hazardous waste. Background Art

[0002] Hazardous waste has one or more hazardous characteristics such as corrosiveness, toxicity, flammability, reactivity and infectivity. Among them, liquid hazardous waste (hereinafter referred to as liquid hazardous waste) has the characteristics of strong fluidity, high diffusivity and high volatility, and is prone to run, bubble, drip and leak, thus causing harm to the ecological environment such as water bodies, soil and atmosphere, as well as human life and health. Therefore, it is urgent to supervise the whole process of liquid hazardous waste generation, storage, transportation and disposal.

[0003] The "Hazardous Waste Storage Pollution Control Standard (GB 18597-2023)" breaks down hazardous waste storage facilities into four types: storage depots, storage yards, storage pools, and storage tanks; it clearly proposes to strengthen smart supervision, adopt electronic floor scales, electronic management ledgers and other technical means to conduct information management of the hazardous waste storage process, and improve the level of hazardous waste storage environmental management, which puts higher requirements on the supervision level of liquid hazardous waste.

[0004] At present, liquid hazardous waste generated by enterprises is usually directly poured into collection containers or storage tanks for storage. When it needs to be processed, it is transported to the disposal unit by vehicle after passing the relevant approval procedures and waits for the disposal unit to process it. However, this management model has the following main problems:

[0005] (1) Liquid hazardous waste is inconvenient to collect, and loading and unloading are manual operations, which can easily cause environmental pollution and personnel hazards during the collection, transportation, and transshipment processes;

[0006] (2) The operation status of the storage tank cannot be monitored in real time, and it is impossible to dynamically grasp the remaining storage space, abnormal operation status, etc.;

[0007] (3) The approval process for production, storage, transportation, and disposal is complex and often requires manual registration. Information sharing is difficult in all links of the entire process, supervision effectiveness is poor, data gaps (production volume, storage volume, and processing volume) are large, and disposal efficiency is low;

[0008] (4) Data are usually estimated and statistically analyzed, which results in low data accuracy;

[0009] (5) The ledgers are recorded manually and lack supervision, resulting in problems such as data delays and extraction errors, and the data validity is poor.

[0010] Based on the problems existing in the above-mentioned existing technologies, there is an urgent need for a full-process automated working method and a full-process real-time monitoring system for liquid hazardous waste that integrates information management and early warning alarms. Summary of the invention

[0011] The technical problem to be solved by the present invention is to provide a system and method for the full process automation and real-time supervision of liquid hazardous waste, which solves the collection and supervision problems of liquid hazardous waste. Through digital, paperless and standardized operation, the system realizes the automatic collection and transportation of liquid hazardous waste at the production end, real-time monitoring of storage tanks, automatic generation of digital ledgers and data verification, information sharing of all links in the whole process, and early warning alarms, which integrates the real-time supervision of the whole process of liquid hazardous waste. The information management of the whole process of liquid hazardous waste is realized, and the efficiency of the collection and transportation, storage facility management, utilization and processing, and data collection of liquid hazardous waste is improved, and the consumption of manpower and material resources is reduced.

[0012] The technical solutions adopted are:

[0013] A liquid hazardous waste full-process automated work and real-time monitoring system, which uses a DCS control system for remote control, including a first hazardous waste work route, a second hazardous waste work route and a real-time monitoring system;

[0014] The first hazardous waste work route is provided with a first waste production unit, and the first waste production unit is connected to a first intermediate tank, a storage tank, an external disposal unit, and an internal utilization facility through pipelines;

[0015] The second hazardous waste work route is provided with a second waste production unit, and the second waste production unit is connected to a second intermediate tank, a storage tank, an external disposal unit, and an internal utilization facility through pipelines;

[0016] The real-time monitoring system is installed on a computer and includes the following modules:

[0017] Basic configuration module, used to maintain the operation permissions of internal personnel, the list of liquid hazardous waste involved, basic information of storage tanks, liquid hazardous waste transportation process, and transfer form records;

[0018] The early warning model module is used to set the early warning parameter values ​​and rules for storage environment, alarm, outsourced disposal unit, data verification model, etc. When the detection parameter value exceeds the set value, the early warning work is started;

[0019] Storage monitoring module, used for real-time monitoring of storage tank operation and liquid level;

[0020] The ledger module automatically generates the liquid hazardous waste generation ledger, liquid hazardous waste internal utilization ledger, liquid hazardous waste outsourcing disposal ledger, tank entry ledger, and tank exit ledger based on the ledger data generation rules. When the ledger is generated, the data verification model is enabled to verify the data validity.

[0021] Self-assessment module, used to assess and demonstrate the safety and environmental risks of various liquid hazardous wastes;

[0022] Abnormal recording module, used for pre-alarm original data storage and information push;

[0023] Mobile terminal module, used for SMS push notification of abnormal record information;

[0024] Operation module, used to visualize the entire process of liquid hazardous waste transportation and remote operation;

[0025] The first hazardous waste work route and the second hazardous waste work route are controlled by the DCS system, and the whole process of liquid hazardous waste can be supervised through the real-time monitoring system in the background.

[0026] Preferably, on the first hazardous waste working route, the first valve, the first booster pump, the first flow meter and the eighth valve are installed in sequence on the pipeline between the first intermediate tank and the storage tank; the pipeline branches between the first flow meter and the eighth valve to form a first branch line, and the first branch line bypasses the storage tank and branches again, and is respectively connected to an outsourced disposal unit and internal utilization facilities.

[0027] Preferably, on the second hazardous waste working route, the pipeline coming out of the second intermediate tank is connected to the first branch line, and the second valve, the second booster pump and the second flow meter are installed in sequence on the pipeline between the second intermediate tank and the first branch line.

[0028] Preferably, the first branch line is provided with a valve at each branch, and a third valve, a fourth valve, a sixth valve, a fifth valve and a seventh valve are provided in sequence.

[0029] Preferably, a liquid level sensor is installed on the top of the storage tank, a third booster pump is installed on the pipeline at the bottom, and a temperature sensor is installed on the side wall.

[0030] Preferably, a fourth flow meter is provided at the entrance of the outsourced disposal unit, and a third flow meter is provided at the entrance of the internal utilization facility.

[0031] As a further preferred embodiment, the basic configuration module includes an authority configuration module, a liquid hazardous waste inventory module, a storage tank information maintenance module, a liquid hazardous waste transportation process module, and a transfer form recording module;

[0032] Among them, the permission configuration module is used to configure the operation rights and / or viewing rights and operation / viewing permission scope of the account;

[0033] The liquid hazardous waste list module is used to maintain the liquid hazardous waste list and its properties involved in the enterprise, including waste name, waste category, waste code, waste characteristics, industry source, main chemical components and content, and density;

[0034] The storage tank information maintenance module includes basic information, initial inventory, and transportation process; first, according to the storage of liquid hazardous waste, call the corresponding information of the liquid hazardous waste inventory module. Basic information includes storage tank name, storage tank code, affiliated unit, storage capacity, tank bottom area, tank height, and person in charge; initial inventory includes initial time and initial tank capacity; the transportation process includes the name, number, person in charge, affiliated unit, pipeline name, pipeline number, and internal treatment facility utilization or external disposal unit to which the tank is transported. Internal utilization facilities include pipeline name and pipeline number, facility name, facility number, affiliated unit, utilization / disposal method, facility design disposal capacity, and person in charge. External disposal units include pipeline name and pipeline number, outsourced unit name, business license number, business validity period, contract validity period, business category, utilization / disposal method, contact person, business license and other certification documents uploaded. When the storage tank information module maintenance is completed, the storage monitoring module automatically generates a storage tank model; the operation module automatically generates a liquid hazardous waste transportation visualization operation process; the data verification model module automatically generates an alarm model;

[0035] The liquid hazardous waste transportation process module is used to maintain the immediate production and immediate cleaning operation process of directly transporting the waste from the waste-generating unit to the internal utilization facility or external disposal unit without passing through the storage tank; according to the storage of liquid hazardous waste, the corresponding information of the liquid hazardous waste inventory module is called, and the waste-generating unit includes the name of the pipeline involved, the pipeline number, the name and number of the waste-generating unit, the person in charge and the unit to which it belongs; the internal utilization facility includes the facility name, facility number, unit to which it belongs, utilization / disposal method, facility design disposal capacity, and person in charge; the external disposal unit includes the name of the outsourced unit, the business license number, the business validity period, the contract validity period, the business category, the utilization / disposal method, and the contact person;

[0036] The transfer form record module is used to save and review the transfer forms from the output factory to the outsourced unit.

[0037] As a further preferred embodiment, the early warning model module includes a storage environment module, an alarm module, an outsourcing disposal module, and a data verification model module;

[0038] Among them, the storage environment module is used to set the pre- / alarm liquid level height, storage temperature, storage time, operating pressure range, and operating pressure range of the factory pipeline of the storage tank; as well as the working position number of each sensor; the pre- / alarm rule is: when the corresponding sensor detects that the actual working value exceeds the set value, the pre- / alarm work is started, and the abnormal recording module pre- / alarms once.

[0039] The alarm module can realize real-time review of storage tank and alarm monitoring video and alarm video recording and playback; the alarm includes combustible gas alarm and toxic gas alarm; the alarm rule is: when the infrared thermal imager captures a leak in the storage tank, or the video monitoring detects an alarm in the alarm, the video is captured and recorded, and the abnormal recording module alarms once.

[0040] Outsourcing disposal module: used to determine the disposal qualification, contract validity, and transfer form validity of the liquid hazardous waste outsourcing disposal unit; the pre-warning / alarm rules are: when the system detects that the pump flow meter of the factory pipeline has a reading, the business category of the outsourcing disposal unit corresponding to the pipeline is determined based on the transportation process maintained by the basic configuration module of the pipeline. If the liquid hazardous waste disposed by the outsourcing exceeds the business category of the enterprise, the abnormal record module will alarm once; contract validity period, if the current date is ≤30 days away from the contract validity expiration date, the abnormal record module will warn once; if the current time has passed the contract validity expiration date, the abnormal record module will alarm once. Check the basic configuration module-transfer form record. If there is no corresponding transfer form, the abnormal record module will alarm once.

[0041] Data verification model: used to verify the validity of ledger data, including generation, storage, and processing. It is used by enterprises to set acceptable error values ​​for data and verify whether 1) the generation of a certain liquid hazardous waste is equal to the processing volume; or 2) the generation is equal to the sum of the storage and processing volumes; the alarm rules are: 1) if (the processing volume of the day - the generation volume of the day) / the generation volume of the day > ± the acceptable error value, the abnormal recording module will alarm once; 2) or (calculated storage value data - actual storage value in the tank) / actual storage value in the tank > ± the acceptable error value, that is, [(the generation volume of the day - the processing volume of the day) - (current tank capacity - initial tank capacity) × density] / (current tank capacity - initial tank capacity) × density > ± the set acceptable error value, then the abnormal recording module will alarm once; the generation volume and processing volume are obtained by the ledger module.

[0042] As a further preference, the storage monitoring module is used for real-time dynamic monitoring of the operation of the liquid hazardous waste storage tanks throughout the plant, including the operation status, storage ledger, and liquid level trend chart. Clicking on the selected tank group will display the liquid level trend chart of the tank, and at the same time display the storage tank storage status ledger, including the storage tank name, number, name of the stored liquid hazardous waste, hazardous waste category, hazardous waste code, main chemical components and content, storage tank volume, storage tank height, liquid level height, storage temperature, and storage time. When the storage tank is operating normally, it displays blue; when the storage tank liquid level sensor detects that the liquid level height reaches the warning liquid level height set by the early warning model module, the storage tank color is displayed in yellow, and the abnormal recording module issues an alarm once; when the storage tank liquid level sensor detects that the liquid level height reaches the alarm liquid level height set by the early warning model module, the storage tank color is displayed in red, and the abnormal recording module issues an alarm once.

[0043] As a further preferred embodiment, the ledger module automatically generates various electronic ledgers based on the ledger data generation rules.

[0044] Among them, the liquid hazardous waste generation ledger includes: generation batch code, generation time, liquid hazardous waste name, waste category, waste code, main chemical components and content, hazardous characteristics, generation amount, generation unit and generation unit code;

[0045] The internal utilization record of liquid hazardous waste includes: self-utilization / disposal code, self-utilization / disposal time, liquid hazardous waste name, waste category, waste code, main chemical components and content, hazardous characteristics, self-utilization / disposal quantity, self-utilization / disposal method, facility name, facility code, and production batch code;

[0046] The external disposal record of liquid hazardous waste includes: outsourcing utilization / disposal code, factory time, liquid hazardous waste name, waste category, waste code, main chemical components and content, hazardous characteristics, outsourcing utilization / disposal quantity, outsourcing utilization / disposal method, outsourcing utilization / disposal unit name, license number, and generated batch code;

[0047] The record of liquid hazardous waste entering the tank includes: batch code, time of entry, name of liquid hazardous waste, waste category, waste code, main chemical components and content, hazardous characteristics, entry quantity, batch code, and production unit;

[0048] The liquid hazardous waste out-of-tank account includes: out-of-tank batch code, out-of-tank time, liquid hazardous waste name, waste category, waste code, main chemical components and content, hazardous characteristics, and out-of-tank quantity;

[0049] Based on the liquid hazardous waste pipeline flow meter, the values ​​of production volume, treatment volume, tank inflow volume, and tank outflow volume are automatically generated. The rules for generating ledger data are as follows:

[0050] Production or processing volume on the Nth day: A piece of information is automatically generated at zero o'clock on the N+1th day as the production / processing volume on the Nth day. If it is a mass flow meter, the data is the reading at zero o'clock on the N+1th day - the reading at zero o'clock on the Nth day; if it is a volume flow meter, the data is (volume reading at zero o'clock on the N+1th day - volume reading at zero o'clock on the Nth day) × density; a piece of data is automatically generated at zero o'clock on the N+1th day as the production / processing volume on the Nth day;

[0051] Real-time inflow or outflow of tank: if it is a mass flow meter, the data is the reading when the pump stops - the reading before the pump starts; if it is a volume flow meter, the data is (the reading when the pump stops - the reading before the pump starts) × density; every time liquid hazardous waste is detected to enter or leave the tank, a piece of data information is automatically generated in real time;

[0052] The data in other fields of each ledger are maintained by the basic configuration module and are automatically read and generated by the system.

[0053] Preferably, the data verification model is automatically started when the ledger is generated to verify the validity of the data; the generated volume is judged to be equal to the processed volume, that is, (the processed volume of the day - the generated volume of the day) / the generated volume of the day ≤ ± the acceptable error value (that is, ); or determine that the production volume is equal to the sum of the storage volume and the processing volume, that is, [(production volume on the day - processing volume on the day) - (current tank capacity - initial tank capacity) × density] / (current tank capacity - initial tank capacity) × density ≤ ± acceptable error value (i.e. ), the data passes the verification. The acceptable error value can be set in the early warning model module and can be set according to the needs of different enterprises.

[0054] Where D is the daily processing volume, P is the daily production volume, S is the current storage tank bottom area, H is the current storage tank liquid level height, V 0 is the initial tank capacity, ρ is the current density of liquid hazardous waste, and AEV is the acceptable error value of the model data.

[0055] As a further preference, the self-assessment module includes a storage statistics analysis unit, an abnormal statistics analysis unit, and an assessment unit;

[0056] Among them, the storage statistical analysis unit takes each storage tank as the object, comprehensively analyzes the storage quantity of liquid hazardous waste, storage environment conditions and abnormal operation conditions, and analyzes the main risk points of the storage tank; the abnormal statistical analysis unit takes each liquid hazardous waste as the object, comprehensively analyzes the abnormal warning / alarm conditions such as storage environment, alarms, data verification, and analyzes and evaluates high warning / alarm risk points; Assessment unit: Based on the first two units, through the liquid hazardous waste safety and environmental risk assessment model, the main risk links of liquid hazardous waste are identified to improve the company's refined management level of liquid hazardous waste.

[0057] Abnormal record module: reads data according to the early warning model module, and generates an abnormal record for each early warning or alarm. The abnormal record account includes: facility name, facility number, type (early warning or alarm), early warning / alarm description, start time, end time, status (unprocessed / completed), and submission instructions.

[0058] As a further preference, the mobile terminal module is associated with the abnormal record module, and each time an abnormal record information is generated, a text message reminder is pushed to the corresponding responsible person; including facility name, facility number, type, warning / alarm description, start time, end time, status, submission instructions, responsible person, and contact information.

[0059] Operation module: According to the liquid hazardous waste transportation process configured by the basic configuration module, each transportation process route is visualized and used to remotely control the start and stop control of the booster pumps and valves in each process.

[0060] A method for a full-process automated work and real-time monitoring system for liquid hazardous waste, using a full-process automated work and real-time monitoring system for business hazardous waste, characterized in that the work process includes the following:

[0061] The entire process is controlled by the DCS system. The first hazardous waste working route and the second hazardous waste working route can work simultaneously or separately.

[0062] When the first hazardous waste working route is in operation, the liquid hazardous waste generated by the first waste-producing unit is transported to the first intermediate tank through the pipeline. When the first valve and the eighth valve are opened and the third valve is closed, the liquid hazardous waste is pumped into the storage tank through the first booster pump and the first flow meter. When it is to be disposed of by an external contractor, the sixth valve is closed and the liquid hazardous waste is sent to the external contractor through the pipeline through the fifth valve and the fourth flow meter through the third booster pump;

[0063] and / or, when it is time to use it internally, the fifth valve is closed, the sixth valve and the seventh valve are opened, and the third booster pump is used to deliver the liquid to the internal utilization facility through the pipeline and the third flow meter;

[0064] And / or, the eighth valve and the seventh valve are closed, and the liquid hazardous waste generated by the first waste-producing unit is transported to the first intermediate tank through the pipeline, and then sent to the outsourced disposal unit through the first valve, the first booster pump, the first flow meter, the third valve, the fourth valve, the sixth valve, the fifth valve, and the fourth flow meter;

[0065] and / or, the eighth valve and the sixth valve are closed, and the liquid hazardous waste generated by the first waste-generating unit is transported to the first intermediate tank through the pipeline, and then to the internal utilization facility through the first valve, the first booster pump, the first flowmeter, the third valve, the fourth valve, the seventh valve, and the third flowmeter;

[0066] When the second hazardous waste working route is in operation, the liquid hazardous waste generated by the second waste-producing unit is transported to the second intermediate tank through the pipeline. When the second valve, the third valve, and the eighth valve are opened and the fourth valve is closed, the liquid hazardous waste is pumped into the storage tank through the second booster pump and the second flow meter. When it is to be disposed of by an external contractor, the sixth valve is closed and the liquid hazardous waste is sent to the external contractor through the pipeline through the third booster pump, the fifth valve, and the fourth flow meter.

[0067] and / or, when it is time to use it internally, the fifth valve is closed, the sixth valve and the seventh valve are opened, and the third booster pump is used to deliver the liquid to the internal utilization facility through the pipeline and the third flow meter;

[0068] And / or, when the second valve, the fourth valve, the sixth valve, and the fifth valve are opened, and the third valve and the seventh valve are closed, the liquid hazardous waste is sent to the outsourced disposal unit through the second booster pump, the second flow meter, and the fourth flow meter;

[0069] and / or, when the second valve, the fourth valve, and the seventh valve are opened, and the third valve and the sixth valve are closed, the liquid hazardous waste is delivered to the internal utilization facility through the second booster pump, the second flow meter, and the third flow meter;

[0070] When the first hazardous waste working route and the second hazardous waste working route transport the same type of liquid hazardous waste and both need to be transported to the storage tank for temporary storage, the liquid hazardous waste generated by the first waste-producing unit is transported through the pipeline and temporarily stored in the first intermediate tank. When the first valve and the eighth valve are opened, the liquid hazardous waste is pumped into the storage tank through the first booster pump and the first flow meter for temporary storage; the liquid hazardous waste generated by the second waste-producing unit is temporarily stored in the second intermediate tank through the pipeline. When the second valve and the third valve are opened and the fourth valve is closed, the liquid hazardous waste is pumped into the storage tank through the second booster pump and the second flow meter for temporary storage; when the liquid hazardous waste in the storage tank is outsourced for disposal, the fifth valve is opened, the sixth valve is closed, and it is sent to the outsourced disposal unit through the fourth flow meter;

[0071] And / or, when the liquid hazardous waste in the storage tank is to be utilized internally, the fifth valve is closed, the sixth valve and the seventh valve are opened, and the waste is delivered to the internal utilization facility via the third booster pump and the third flow meter;

[0072] When the entire process is automated, the real-time monitoring system is used to dynamically grasp the status of the liquid hazardous waste disposal process in the entire plant, monitor the remaining storage volume of the storage tank, liquid level trends, storage environment and other operating conditions in real time, effectively control internal utilization and outsourced disposal status, automatically generate electronic ledgers for each stage and verify data accuracy in real time, and pre-alarm for abnormal situations in the entire process, thereby realizing remote information-based supervision of the entire process of liquid hazardous waste collection, pipeline transportation, storage, internal utilization, and external disposal.

[0073] Actual enterprises are not limited to the above workflows, nor do they necessarily have all of the above workflows at the same time.

[0074] Wherein, the flow meter may be a mass flow meter or a volume flow meter, etc.;

[0075] Sensors: including temperature sensors, liquid level sensors, inlet and outlet flow sensors and pressure sensors; temperature sensors are used to detect the temperature of liquid hazardous waste in storage tanks; liquid level sensors are used to detect the height of the stored liquid level in storage tanks; inlet and outlet flow sensors are used to detect the inlet and outlet flow of storage tanks; pressure sensors are installed in the tank or in the factory pipeline to detect the pressure changes in the tank or pipeline in real time, and to detect and determine whether leakage and other abnormal conditions occur.

[0076] Video monitoring: It uses a combination of visible light cameras and infrared thermal imagers to detect liquid hazardous waste leakage in storage tanks, alarm monitoring and detection, and abnormal video capture and recording.

[0077] Alarm: explosion-proof or intrinsically safe. Toxic gas alarm and flammable gas alarm are configured according to the nature of the stored liquid hazardous waste.

[0078] Compared with the prior art, the present invention has the following beneficial effects:

[0079] 1) Provide a fully automated working method for liquid hazardous waste. Use intermediate tanks to temporarily store liquid hazardous waste generated by waste-producing units to realize pipeline collection of liquid hazardous waste; control the pipeline transportation of liquid hazardous waste to storage tanks, internal utilization units or external disposal units through booster pumps and flow meters; use temperature, liquid level and other sensors and video monitoring to monitor the operating status of storage tanks in real time to achieve continuous and automated operation of liquid hazardous waste. Avoid manual loading and unloading of liquid hazardous waste, manual registration and approval operations, and vehicle transportation of liquid hazardous waste, reduce the risk of liquid hazardous waste being discharged into the external environment and polluting the environment, and realize the automation of the entire process of liquid hazardous waste collection, storage, and treatment.

[0080] 2) Provide a full-process supervision system for liquid hazardous waste. The full-process supervision system can dynamically grasp the liquid hazardous waste disposal process of the entire plant, monitor the remaining storage volume of the storage tank, liquid level trend and other operating conditions in real time, effectively control internal utilization and outsourced disposal, and realize remote information supervision of the entire process of liquid hazardous waste collection, pipeline transportation, storage, internal utilization, and external disposal, effectively strengthen smart supervision, realize information sharing in all links, and improve disposal efficiency.

[0081] 3) Realize real-time monitoring of the storage facility environment. Through sensors such as liquid level and temperature, real-time information on the operating status of the storage tank, such as the liquid level trend, storage tank temperature, and remaining storage volume, can be obtained. Dispatch of hazardous waste transfer and disposal can be carried out according to the operating status of the storage tank, effectively improving the environmental management level of liquid hazardous waste storage.

[0082] 4) Automatic generation of electronic ledgers. The liquid hazardous waste full-process supervision system is used to sort out the process, and the flow meters corresponding to each process are used to automatically read the data. The liquid hazardous waste generation, internal utilization, and outsourced disposal ledgers can be automatically generated according to the ledger generation rules, with high data accuracy. The liquid hazardous waste full-process supervision system helps to track and process data, effectively solving the problems of low data accuracy due to human estimation and statistics, and poor effectiveness due to manual entry of ledgers.

[0083] 5) Automatic data verification. Provide data verification rules, perform data verification while generating the ledger, and verify whether the liquid hazardous waste meets the equation that the amount of production is equal to the sum of the treatment amount and the storage amount, to ensure that the data is complete, true, and accurate, and solve the problem of large gaps in the current data on the amount of liquid hazardous waste produced, stored, and treated by enterprises.

[0084] 6) Realize pre-alarm of abnormal situations in the whole process. The early warning model module realizes pre-alarm of the whole process of storage environment, liquid leakage, outsourcing disposal, and data validity. When the set parameter range is exceeded, the early warning model module starts working, generates pre-alarm information through the abnormal record module, and pushes reminders through mobile SMS to strictly control the safety and environmental risks of the whole process of liquid hazardous waste.

[0085] 7) Analyze the current status of liquid hazardous waste management and conduct self-assessment. For various types of liquid hazardous waste, analyze the generation, storage, and abnormal conditions, identify the main risk points, and use the liquid hazardous waste management process with low generation, high utilization rate, and good storage environment as a template to optimize other liquid hazardous waste management processes within the enterprise and improve the intelligent and refined management level of liquid hazardous waste throughout the plant. BRIEF DESCRIPTION OF THE DRAWINGS

[0086] Figure 1 This invention provides a full-process automated working system for liquid hazardous waste;

[0087] In the figure, 1-first waste production unit, 2-second waste production unit, 3-first intermediate tank, 4-second intermediate tank, 5-storage tank, 6-outsourced disposal unit, 7-internal utilization facility, 8-liquid level sensor, 9-temperature sensor;

[0088] 11-first valve, 12-second valve, 13-third valve, 14-fourth valve, 15-fifth valve, 16-sixth valve;

[0089] 17-the seventh valve; 18-the eighth valve;

[0090] 21-first booster pump, 22-second booster pump, 23-third booster pump;

[0091] 31 - first flow meter, 32 - second flow meter, 33 - third flow meter, 34 - fourth flow meter.

[0092] Figure 2 This is a framework diagram of a full-process supervision system for liquid hazardous waste according to the present invention.

[0093] Figure 3 It is a schematic diagram for dynamically displaying the storage situation of the storage tank of the present invention. DETAILED DESCRIPTION

[0094] The drawings are for illustrative purposes only. To better illustrate the present embodiment, some parts of the drawings are omitted, enlarged or reduced, and do not represent the size of the actual product. The terms "upper", "lower", "left", "right", "side", "outer", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0095] It should be understood that “first”, “second”, etc. are only for better illustrating the technical features of the present invention and for ease of understanding, and cannot be a limitation of the present invention.

[0096] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0097] Example 1

[0098] like Figure 1 As shown in the figure, a liquid hazardous waste full-process automated operation and real-time monitoring system is automatically controlled by a DCS control system (a DCS system is a computer system. Figure 1 It is not shown in the real-time monitoring system; the real-time monitoring system is also run on computer systems, mobile phone APPs and other clients. Figure 1 It cannot be displayed in the table above), including the first hazardous waste work route, the second hazardous waste work route and the real-time monitoring system;

[0099] The first hazardous waste working route is provided with a first waste generating unit 1, and the first waste generating unit 1 is connected to the first intermediate tank 3, the storage tank 5, the external disposal unit 6, and the internal utilization facility 7 through a pipeline. On the first hazardous waste working route, the first valve 11, the first booster pump 21, the first flow meter 31, and the eighth valve 18 are sequentially installed on the pipeline between the first intermediate tank 3 and the storage tank 5; the pipeline branches between the first flow meter and the eighth valve to form a first branch line, which bypasses the storage tank 5 and branches again, and is respectively connected to the external disposal unit 6 and the internal utilization facility 7.

[0100] In order to facilitate the closure of certain pipelines, valves are provided at each branch of the first branch line. A third valve 13 is provided between the pipelines connected to the second intermediate tank 4 of the first branch line, and a fourth valve 14 is provided after the pipelines connected to the second intermediate tank 4 are connected. As the first branch line is extended, the first branch line is divided into a pipeline leading to the external disposal unit 6 and a pipeline leading to the internal utilization facility 7. A sixth valve 16 is provided on the pipeline leading to the external disposal unit 6, and a fifth valve 15 is provided after the pipeline coming out of the bottom end of the storage tank 5 is connected to the pipeline leading to the external disposal unit 6. A seventh valve 17 is provided on the pipeline leading to the internal utilization facility 7.

[0101] The second hazardous waste working route is provided with a second waste producing unit 2, and the second waste producing unit 2 is connected to the second intermediate tank 4, the storage tank 5, the outsourced disposal unit 6, and the internal utilization facility 7 through pipelines; on the second hazardous waste working route, the pipeline coming out of the second intermediate tank 4 is connected to the first branch line, and the second valve 12, the second boosting pump 22, and the second flow meter 32 are installed in sequence on the pipeline between the second intermediate tank 4 and the first branch line.

[0102] A liquid level sensor 8 is installed on the top of the storage tank 5, a third booster pump 23 is installed on the pipeline at the bottom thereof, and a temperature sensor 9 is installed on the side wall thereof.

[0103] As a further preference, a fourth flow meter 34 is provided at the entrance of the outsourced disposal unit 6 , and a third flow meter 33 is provided at the entrance of the internal utilization facility 7 .

[0104] The first hazardous waste working route and the second hazardous waste working route are controlled by the DCS system. Each booster pump, valve, and flow meter are controlled by the DCS system, and can be remotely controlled. The entire process of liquid hazardous waste can be supervised through the real-time monitoring system in the background.

[0105] like Figure 2 As shown, the real-time monitoring system includes the following modules:

[0106] Basic configuration module, used to maintain the operation permissions of internal personnel, the list of liquid hazardous waste involved, basic information of storage tanks, liquid hazardous waste transportation process, and transfer form records;

[0107] The early warning model module is used to set the early warning parameter values ​​and rules for storage environment, alarm, outsourced disposal unit, data verification model, etc. When the detection parameter value exceeds the set value, the early warning work is started;

[0108] Storage monitoring module, used for real-time monitoring of storage tank operation and liquid level;

[0109] The ledger module automatically generates various electronic ledgers (liquid hazardous waste generation ledger, liquid hazardous waste internal utilization ledger, liquid hazardous waste outsourcing disposal ledger, liquid hazardous waste tank entry ledger, liquid hazardous waste tank exit ledger) based on the ledger data generation rules, and enables the data verification model to verify the data validity when the ledger is generated;

[0110] Self-assessment module, used to assess and demonstrate the safety and environmental risks of various liquid hazardous wastes;

[0111] Abnormal recording module, used for pre-alarm original data storage and information push;

[0112] Mobile terminal module, used for SMS push notification of abnormal record information;

[0113] The operation module is used to visualize the entire process of liquid hazardous waste transportation and remote operation.

[0114] The enterprise described in this example involves two liquid hazardous waste disposal processes, and its operating methods are as follows:

[0115] First working process: the waste organic solvent generated by the PVA device (i.e., the first waste generating unit 1) is temporarily stored in the first intermediate tank 3 through pipeline transportation. When the first valve 11 and the eighth valve 18 are opened, the waste organic solvent is pumped into the waste organic solvent tank (i.e., the storage tank 5) through the first booster pump 21 and the first flowmeter 31. When it is to be outsourced for disposal, the sixth valve 16 is closed and the waste organic solvent is sent to the waste organic solvent disposal unit (i.e., the outsourced disposal unit 6) through the pipeline through the second booster pump 23, the fifth valve 15 and the fourth flowmeter 34.

[0116] Second working process: the waste oil generated by the styrene device (i.e., the second waste generating unit 2) is temporarily stored in the second intermediate tank 4 through pipeline transportation. When the second valve 12, the fourth valve 14, and the seventh valve 17 are opened, and the third valve 13 and the sixth valve 16 are closed, the waste oil is sent to the waste oil utilization facility (i.e., the internal utilization facility 7) through the second booster pump 22, the second flow meter 32, and the third flow meter 33.

[0117] The relevant liquid hazardous waste management personnel of the enterprise log in to the liquid hazardous waste full process supervision system, specifically:

[0118] The basic configuration module is used to maintain and view basic information. Among them, the permission configuration module is used to configure account permissions and verify the scope of account operation permissions.

[0119] The liquid hazardous waste list module is used to maintain and browse the liquid hazardous waste list of the enterprise, namely the waste name, waste category, waste code, waste characteristics, industry source, main chemical components and content, density (ρ 0 ).

[0120] The storage tank information maintenance module is used for the maintenance and review of the liquid hazardous waste storage tanks involved in the enterprise, namely the basic information, initial inventory, and transportation process of the waste organic solvent tank (i.e. storage tank 5). When maintaining the storage tank, the basic information and characteristics of the waste organic solvent in the liquid hazardous waste inventory module are first called, and then the basic information of the waste organic solvent tank (i.e. storage tank 5) is maintained, including name, code, affiliated unit, storage capacity, tank bottom area (S), tank height, person in charge; initial inventory, the initial quantity is the existing storage quantity at the time of maintenance, i.e. the initial tank capacity (V 0 ) and the beginning time; the name, number, person in charge, affiliated unit, name of connected pipeline I, pipeline number of the transportation process maintenance PVA device (i.e. the first waste production unit 1), name of the waste organic solvent disposal unit (i.e. the outsourced disposal unit 6), business license number, business validity period, contract validity period, business category, utilization / disposal method, contact person, name of connected pipeline II, pipeline number. When the storage tank information module is maintained, the storage monitoring module automatically generates a waste organic solvent storage tank model; the operation module automatically generates a liquid hazardous waste transportation visualization operation process; the data verification model module automatically generates an alarm model.

[0121] The liquid hazardous waste transportation process module is used for the maintenance and review of the liquid hazardous waste transportation process that does not pass through the storage tank. During maintenance, the basic information and characteristics of the waste oil in the liquid hazardous waste inventory module are first called, and then the styrene unit (i.e. the second waste production unit 2), number, person in charge and his / her unit, the name of the connecting pipeline III, the pipeline number, the sludge utilization facility (i.e. the internal utilization facility 7) name, facility number, unit, utilization / disposal method, facility design disposal capacity, and person in charge are maintained. When the liquid hazardous waste transportation process module is maintained, the operation module automatically generates a liquid hazardous waste transportation visualization operation process; the data verification model module automatically generates an alarm model.

[0122] The transfer form record module is used to upload, save and review the transfer form of waste organic solvents from the factory to the waste organic solvent disposal unit (i.e., the outsourced disposal unit 6).

[0123] Early warning model module: used for setting and checking the early warning parameter value. When the detection parameter value exceeds the set value, the early warning work is started, including the storage environment module, alarm module, outsourcing disposal module, and data verification model module.

[0124] The storage environment module is used for storage environment parameter setting, review, and warning / alarm, including the waste organic solvent tank warning / alarm liquid level height, storage temperature, storage time, operating pressure range; and the operating pressure range of the factory pipeline II.

[0125] Alarm module: used for real-time review, recording, playback and alarm of monitoring video of waste organic solvent tank and its supporting alarm.

[0126] Outsourcing disposal module: used for information review and early warning / alarm of waste organic solvent disposal units (i.e. outsourcing disposal units 6), including business categories, contract validity periods and transfer forms.

[0127] Data verification model: used for enterprises to verify the waste organic solvents (AEV 1 ), waste oil (AEV 2 )Data acceptable error value setting.

[0128] The data verification rule for waste organic solvents is to judge The data passes verification.

[0129] The verification rule for dirty oil data is to judge The data passes verification.

[0130] like Figure 3 As shown, the storage monitoring module realizes real-time dynamic monitoring of the operation of the liquid hazardous waste storage tanks in the whole plant. Clicking on the selected tank group will display the liquid level trend chart of the tank, and at the same time display the storage status ledger of the storage tank, including the storage tank name, number, name of the stored liquid hazardous waste, hazardous waste category, hazardous waste code, main chemical components and content, storage tank volume, storage tank height, liquid level height (H), storage temperature, and storage time. When the storage tank is operating normally, it will be displayed in blue; when the storage tank liquid level sensor detects that the liquid level has reached the warning liquid level set by the warning model module, the color of the storage tank will be displayed in yellow, and the abnormal recording module will issue an alarm once; when the storage tank liquid level sensor detects that the liquid level has reached the alarm liquid level set by the warning model module, the color of the storage tank will be displayed in red, and the abnormal recording module will issue an alarm once.

[0131] The ledger module automatically generates a ledger of production, internal use, and outsourced disposal on the Nth day at midnight on the N+1th day.

[0132] The liquid hazardous waste generation ledger includes: generation batch code, generation time, liquid hazardous waste name, waste category, waste code, main chemical components and content, hazardous characteristics, generation amount, generation unit and code. Among them, the generation amount of waste organic solvents (P O ): mass flow reading of the first flow meter 31 at zero o'clock on the N+1th day - mass reading of the first flow meter 31 at zero o'clock on the Nth day; amount of dirty oil generated (P I ): Mass flow reading of the second flow meter 32 at zero o'clock on the N+1th day - mass flow reading of the second flow meter 32 at zero o'clock on the Nth day. Other data information is maintained by the basic configuration module and is automatically read and generated by the system.

[0133] The internal utilization record of liquid hazardous waste (dirty oil) includes: self-utilization / disposal code, self-utilization / disposal time, liquid hazardous waste name, waste category, waste code, main chemical components and content, hazardous characteristics, self-utilization / disposal amount, self-utilization / disposal method, facility name, facility code, and production batch code. I ): Mass flow reading of the third flow meter 33 at zero o'clock on the N+1th day - mass flow reading of the third flow meter 33 at zero o'clock on the Nth day. Other data information is maintained by the basic configuration module and is automatically read and generated by the system.

[0134] The external disposal record of liquid hazardous waste (waste organic solvent) includes: outsourcing utilization / disposal code, factory time, liquid hazardous waste name, waste category, waste code, main chemical components and content, hazardous characteristics, outsourcing utilization / disposal quantity, outsourcing utilization / disposal method, outsourcing utilization / disposal unit name, license number, and generation batch code. O ): Mass flow reading of the fourth flow meter 34 at zero o'clock on the N+1th day - mass flow reading of the fourth flow meter 34 at zero o'clock on the Nth day. Other data information is maintained by the basic configuration module and is automatically read and generated by the system.

[0135] The record of liquid hazardous waste (waste organic solvent) entering the tank includes: batch code, time of entry, name of liquid hazardous waste, waste category, waste code, main chemical components and content, hazardous characteristics, quantity entered, batch code, and unit of production. Among them, the quantity of waste organic solvent entering the tank: the mass reading of the first flow meter 31 when the pump stops - the mass reading of the first flow meter 31 before the pump starts. Other data information is maintained by the basic configuration module and automatically read and generated by the system.

[0136] The liquid hazardous waste (waste organic solvent) out-of-tank account includes: out-of-tank batch code, out-of-tank time, liquid hazardous waste name, waste category, waste code, main chemical components and content, hazardous characteristics, out-of-tank quantity. Among them, the out-of-tank quantity of waste organic solvent is: the mass flow reading of the fourth flow meter 34 when the pump stops - the mass flow reading of the fourth flow meter 34 before the pump starts. Other data information is maintained by the basic configuration module and automatically read and generated by the system.

[0137] The self-assessment module is used for the safety and environmental risk assessment and result display of the whole process management of waste organic solvents and waste oil. The storage statistical analysis unit is used for the assessment of the main risk points of storage tanks and the situation display; the abnormal statistical analysis unit is used for the risk assessment and situation display of the high-alarm / alarm points of the enterprise; the assessment unit is used for comprehensive analysis and evaluation of the main risk links of liquid hazardous waste and the situation display.

[0138] The abnormal record module is used to check and process the warning / alarm abnormal records generated by the early warning model module. The abnormal record account includes: facility name, facility number, type (warning or alarm), warning / alarm description, start time, end time, status (unprocessed / completed), and submission instructions.

[0139] The mobile terminal module is used for mobile terminal permission settings and abnormal record SMS push reminders of abnormal records in the abnormal record module.

[0140] The operation module is used for remote control of the entire process of waste organic solvents and dirty oil.

[0141] Example 2

[0142] The working method of the full-process automated operation of liquid hazardous waste of a certain enterprise described in this example is as follows: the alkali residue produced by the catalytic device I (i.e., the first waste-producing unit 1) is temporarily stored in the first intermediate tank 3 through pipe transportation. When the first valve 11 and the eighth valve 18 are opened, the alkali residue is pumped into the alkali residue tank (i.e., the storage tank 5) through the first booster pump 21 and the first flowmeter 31. The alkali residue produced by the catalytic device II (i.e., the second waste-producing unit 2) is temporarily stored in the second intermediate tank 4 through pipe transportation. When the second valve 12 and the third valve 13 are opened and the fourth valve 14 is closed, the alkali residue is pumped into the alkali residue tank (i.e., the storage tank 5) through the second booster pump 22 and the second flowmeter 32. When it is used internally, the fifth valve 15 is closed, and the alkali residue is sent to the alkali residue utilization facility (i.e., the internal utilization facility 7) through the third booster pump 23, the sixth valve 16, the third flowmeter 33, and the seventh valve 17. When the disposal capacity of the alkali residue utilization facility is overloaded, the sixth valve 16 is closed, and the alkali residue is sent to the alkali residue disposal unit (ie, the outsourced disposal unit 6) via the third booster pump 23, the fifth valve 15, and the fourth flow meter 34.

[0143] The relevant liquid hazardous waste management personnel of the enterprise log in to the liquid hazardous waste full-process supervision system, and the basic configuration module is used to maintain and review basic information.

[0144] The permission configuration module is used to configure account permissions and verify the scope of account operation permissions;

[0145] The liquid hazardous waste list module is used to maintain and browse the liquid hazardous waste list involved in the enterprise, namely the waste name, waste category, waste code, waste characteristics, industry source, main chemical components and content, and density (ρ') of alkali slag;

[0146] The storage tank information maintenance module is used for the maintenance and review of the liquid hazardous waste storage tanks involved in the enterprise, namely the basic information of the alkali slag tank, the initial inventory, and the transportation process. When maintaining the storage tank, first call the basic information and characteristics of the alkali slag in the liquid hazardous waste list module, and then continue to maintain the basic information of the alkali slag tank, including the name, code, affiliated unit, storage capacity, tank bottom area (S'), tank height, and person in charge; the initial inventory, the initial quantity is the storage quantity at the time of maintenance, that is, the initial tank capacity (V') and the initial time; the transportation process respectively maintains the name, number, person in charge, affiliated unit, connected pipeline I / pipeline II name and corresponding pipeline number of catalytic unit I / catalytic unit II, the name of the alkali slag utilization facility, facility number, affiliated unit, utilization / disposal method, facility design disposal capacity, person in charge, connected pipeline III name, pipeline number, alkali slag disposal unit name, business license number, business validity period, contract validity period, business category, utilization / disposal method, contact person, connected pipeline IV name, pipeline number. When the storage tank information module is maintained, the storage monitoring module automatically generates a alkali slag storage tank model; the operation module automatically generates a visual operation process for alkali slag transportation; and the data verification model module automatically generates an alarm model.

[0147] The transfer form record module is used to upload, save and review the transfer form from the alkali slag leaving the factory to the waste alkali slag disposal unit.

[0148] The early warning model module is used for pre-alarm parameter value, rule setting and review. When the detection parameter value exceeds the set value, the pre-alarm work is started, including storage environment module, alarm module, outsourcing disposal module, data verification model module (the acceptable error value of alkali slag data is set to AEV 3 ).

[0149] The storage environment module is used for setting, checking, and pre- / alarming storage environment parameters, including the pre- / alarming liquid level height, storage temperature, storage time, and operating pressure range of the alkali slag tank; and the operating pressure range of the factory pipeline IV.

[0150] Alarm module: used for real-time review, record playback and pre- / alarm of monitoring video of alkali slag tank and supporting alarm.

[0151] Outsourcing disposal module: used for information review and early warning / alarm of alkali slag disposal units, including business category, contract validity period and transfer form.

[0152] Data verification model module: used for setting and checking acceptable error values ​​of alkali slag.

[0153] The alkali residue data verification rule is to judge The data passes verification.

[0154] The storage monitoring module is used for dynamic monitoring of storage tank operation, viewing of liquid level trend charts, and storage status records, including the storage tank name, number, name of stored liquid hazardous waste, hazardous waste category, hazardous waste code, main chemical components and content, storage tank volume, storage tank height, liquid level height (H'), storage temperature, and storage time.

[0155] The ledger module is used to automatically generate and view the liquid hazardous waste generation ledger, internal utilization ledger, outsourced disposal ledger, tank entry ledger, and tank exit ledger. At zero o'clock on the N+1 day, a ledger for generation, internal utilization, and outsourced disposal on the Nth day is automatically generated.

[0156] One liquid hazardous waste generation record is generated for each of Catalytic Device I and Catalytic Device II every day, including: generation batch code, generation time, liquid hazardous waste name, waste category, waste code, main chemical components and content, hazardous characteristics, generation amount, generation unit and code. Among them, the generation amount of alkali slag of Catalytic Device I (P 1 ) is: the mass flow reading of the first flow meter 31 at zero o'clock on the N+1th day - the mass reading of the first flow meter 31 at zero o'clock on the Nth day; the amount of alkali slag produced by the catalytic device II (P 2 ) is: the mass flow reading of the second flow meter 32 at zero o'clock on the N+1th day - the mass flow reading of the second flow meter 32 at zero o'clock on the Nth day. Other data information is maintained by the basic configuration module and is automatically read and generated by the system.

[0157] The internal utilization record of liquid hazardous waste includes: self-utilization / disposal code, self-utilization / disposal time, liquid hazardous waste name, waste category, waste code, main chemical components and content, hazardous characteristics, self-utilization / disposal amount, self-utilization / disposal method, facility name, facility code, and production batch code. 1 ): Mass flow reading of the third flow meter 33 at zero o'clock on the N+1th day - mass flow reading of the third flow meter 33 at zero o'clock on the Nth day. Other data information is maintained by the basic configuration module and is automatically read and generated by the system.

[0158] The external disposal record of liquid hazardous waste includes: outsourcing utilization / disposal code, factory time, name of liquid hazardous waste, waste category, waste code, main chemical components and content, hazardous characteristics, outsourcing utilization / disposal quantity, outsourcing utilization / disposal method, outsourcing utilization / disposal unit name, license number, and batch code. 2 ): Mass flow reading of the fourth flow meter 34 at zero o'clock on the N+1th day - mass flow reading of the fourth flow meter 34 at zero o'clock on the Nth day. Other data information is maintained by the basic configuration module and is automatically read and generated by the system.

[0159] The record of liquid hazardous waste entering the tank includes: batch code, time of entry, name of liquid hazardous waste, waste category, waste code, main chemical components and content, hazardous characteristics, entry quantity, generation batch code, and generation unit. Among them, the amount of alkali slag entering the tank is automatically generated in real time according to the entry of the two pipelines into the tank, that is, the mass reading of the first flow meter 31 when the pump stops - the mass reading of the first flow meter 31 before the pump starts; or the mass reading of the second flow meter 32 when the pump stops - the mass reading of the second flow meter 32 before the pump starts. Other data information is maintained by the basic configuration module and automatically read and generated by the system.

[0160] The liquid hazardous waste out of the tank account includes: outbound batch code, outbound time, liquid hazardous waste name, waste category, waste code, main chemical components and content, hazardous characteristics, outbound quantity. Among them, the outbound quantity of alkali residue is automatically generated in real time according to the two pipelines entering the tank, that is, the mass flow reading of the third flow meter 33 when the pump stops - the mass flow reading of the third flow meter 33 before the pump starts; or the mass flow reading of the fourth flow meter 34 when the pump stops - the mass flow reading of the fourth flow meter 34 before the pump starts. Other data information is maintained by the basic configuration module and automatically read and generated by the system.

[0161] The self-assessment module is used for the safety and environmental risk assessment and result display of the whole process management of alkali slag. The storage statistical analysis unit is used for the assessment of the main risk points of storage tanks and the display of control conditions; the abnormal statistical analysis unit is used for the risk assessment and control conditions of the enterprise's high-alarm / alarm points; the assessment unit is used for comprehensive analysis and evaluation of the main risk links of liquid hazardous waste and the display of control conditions.

[0162] The abnormal record module is used to check and process the warning / alarm abnormal records generated by the early warning model module. The abnormal record account includes: facility name, facility number, type (warning or alarm), warning / alarm description, start time, end time, status (unprocessed / completed), and submission instructions.

[0163] The mobile terminal module is used for mobile terminal permission settings and abnormal record SMS push reminders of abnormal records in the abnormal record module.

[0164] The operation module is used for remote control of the entire alkali slag process.

[0165] Example 3

[0166] The working method of the full-process automation operation of liquid hazardous waste of a certain enterprise described in this example is as follows: the oily waste generated by the sewage field (i.e., the first waste-generating unit 1) is temporarily stored in the first intermediate tank 3 through pipeline transportation. When the first valve 11 and the eighth valve 18 are opened, the oily waste is pumped into the oil tank (i.e., the storage tank 5) through the first booster pump 21 and the first mass flowmeter 31. When it is ready for internal use, the fifth valve 15 is closed, and the alkali residue is sent to the recycling facility (i.e., the internal utilization facility 7) through the sixth valve 16, the seventh valve 17, the third booster pump 23, and the third mass flowmeter 33.

[0167] As in the first and second embodiments, the basic configuration module maintains basic information such as hazardous waste (oil-containing waste density C), storage conditions (bottom area S, initial tank capacity V), and transportation process, and the early warning model module maintains the pre-alarm parameter value setting (the acceptable error value is set to AEV 4 ), the system generates a transportation process model diagram in the operation module and a real-time dynamic monitoring model of the operation of the oil tank 5 in the storage monitoring module. When the oily waste starts to be transported from the sewage field 1 to the oil tank, the ledger module reads the status of the first booster pump 21 and the reading of the first flow meter 31. The amount of oil entering the tank is the mass flow reading when the pump stops minus the mass flow reading before the pump starts. Other data are brought in to automatically generate a tank entry ledger. When the level sensor of the oil tank 5 detects that the liquid level height (H) reaches the warning level height set by the warning model module, the system issues a warning reminder. Clicking on the tank can display the level trend graph of the tank; the abnormal record module simultaneously generates 1 warning record; the color of the tank group in the storage monitoring module changes from blue (normal operation status) to yellow. If the oily waste in the oil tank is still not disposed of, when the level sensor of the oil tank detects that the liquid level height reaches the alarm level height set in the warning model module, the system issues an alarm reminder. Clicking on the tank can display the level trend graph of the tank; the abnormal record module simultaneously generates 1 alarm record, and the color of the tank group in the storage monitoring module changes to red. At this time, the oily waste must be transferred from the oil tank to the recycling facility through the operation module, and an explanation must be submitted to the abnormal record module to lift the alarm. The ledger module reads the status of the third booster pump 23 and the reading of the third flow meter 33. The amount out of the tank is the mass flow reading when the pump stops - the mass flow reading before the pump starts. Other data is brought in to automatically generate a tank outflow ledger. At the same time, the pre-alarm / alarm is lifted according to the liquid level detected by the liquid level alarm. The ledger module automatically generates the ledger generated on the same day and the internal utilization ledger at zero o'clock on the second day. The generated amount (A) is the mass flow reading of the first flow meter 31 at zero o'clock on the second day - the mass flow reading at zero o'clock on the same day, and the self-utilization / disposal amount (B) is the mass flow reading of the third flow meter 33 at zero o'clock on the second day - the mass flow reading at zero o'clock on the same day. Other data is brought in to automatically generate the generation ledger and internal utilization ledger respectively. When the ledger is generated, the system automatically turns on the data verification function: check The ledger is automatically generated.

[0168] Embodiment 4:

[0169] The working method for the full-process automated operation of liquid hazardous waste of a certain enterprise described in this example is the same as that in Example 3.

[0170] When the ledger module automatically generates the day's production and internal use disposal ledger at midnight on the second day, check The alarm is activated, and an alarm message is generated in the abnormal record module, and the mobile terminal pushes an abnormal record SMS reminder. After manually checking the cause of the data abnormality and removing the alarm, the oil-containing waste generation and disposal ledgers are automatically generated.

[0171] Embodiment 5:

[0172] The working method for the full-process automated operation of liquid hazardous waste of a certain enterprise described in this example is the same as that in Example 3.

[0173] When the infrared thermal imager in the video surveillance of the oil tank 5 tank area captures a leak in the oil tank (i.e., storage tank 5), or the visible light camera video surveillance detects an alarm, the video is captured and recorded. At the same time, the abnormal record module generates an alarm message, and the mobile terminal pushes an abnormal record SMS reminder. The system can only release the alarm after the problem is repaired.

[0174] Embodiment 6:

[0175] The working method for the full-process automated operation of liquid hazardous waste of a certain enterprise described in this example is as follows: the waste alkali liquid generated by the device (i.e., the second waste-producing unit 2) is temporarily stored in the second intermediate tank 4 through a pipeline. When the third valve 13 and the seventh valve 17 are closed, the waste alkali liquid is sent to the outsourced disposal unit 6 through the second valve 12, the fourth valve 14, the sixth valve 16, and the fifth valve 15, through the second booster pump 22, the second volume flow meter 32, and the fourth mass flow meter 34.

[0176] As in the first, second and third embodiments, the basic configuration module maintains basic information such as hazardous waste (waste alkali density P'), transportation process, external disposal unit, etc., and the early warning model module maintains the pre-alarm parameter value setting (the acceptable error value of waste alkali liquid is set to AEV 5 ), the system generates a transportation process model diagram in the operation module at the same time. When the waste alkali starts to be transferred from the device (the second waste production unit 2) to the outsourced disposal unit 6, the ledger module automatically generates the waste alkali liquid production ledger and outsourced disposal ledger for the day at zero o'clock on the second day. The production volume (A') is the second day zero o'clock volume flow reading *P' of the second flow meter 32 - the day zero o'clock volume flow reading *P'', and the outsourced utilization / disposal volume (B') is the second day zero o'clock mass flow reading - the day zero o'clock mass flow reading of the fourth flow meter 33. Bring in other data to automatically generate the production ledger and outsourced disposal ledger respectively. When the ledger is generated, the system automatically turns on the data verification function: check When the pressure sensor in the factory pipeline detects that the pipeline operating pressure is lower than the minimum operating value set in the early warning model module, the system alarms, the abnormal record module generates an alarm message, and the mobile terminal pushes an abnormal record SMS reminder to detect and determine whether the pipeline has leaks and other abnormal conditions. The system can only release the alarm after the abnormal condition is repaired.

[0177] Embodiment 7:

[0178] The working method for the full-process automated operation of liquid hazardous waste of a certain enterprise described in this example is the same as that in Example 6.

[0179] When the ledger module automatically generates the ledger of the day's production and outsourcing disposal at midnight on the second day, the calculation The alarm is activated, and an alarm message is generated in the abnormal record module, and the mobile terminal pushes an abnormal record SMS reminder. After manually checking the cause of the data abnormality and removing the alarm, the waste alkali generation ledger and disposal ledger are automatically generated.

[0180] Embodiment 8:

[0181] The working method for the full-process automated operation of liquid hazardous waste of a certain enterprise described in this example is the same as that in Example 6.

[0182] When the system detects that the current date is ≤30 days from the expiration date of the contract signed with the outsourced disposal unit (the contract validity period in the basic configuration module), it will issue a warning once, the abnormal record module will generate a warning message, and the mobile terminal will push a warning record SMS reminder; if the new contract is not signed in time, so that the current date has exceeded the expiration date of the contract, it will issue an alarm once, the abnormal record module will generate an alarm message, and the mobile terminal will push an alarm record SMS reminder, until the alarm is lifted after the new outsourcing contract is uploaded, and the waste alkali can be transmitted to the outsourced unit.

[0183] Embodiment 9:

[0184] The working method for the full-process automated operation of liquid hazardous waste of a certain enterprise described in this example is the same as that in Example 6.

[0185] When the waste alkali starts to be transferred from the device (i.e. the second waste producing unit) to the outsourced disposal unit 6, the system detects whether there is a corresponding transfer form in the basic configuration module. If there is no corresponding transfer form, an alarm will be issued once, and the abnormal record module will generate an alarm message. The mobile terminal will push an abnormal record SMS reminder, and the second booster pump 22 will stop the pump immediately. The waste alkali cannot be transferred until the system detects the corresponding transfer form, stops the alarm, and the waste alkali transfer work proceeds normally.

[0186] It should be noted that the first waste generating unit 1, the second waste generating unit 2, the storage tank 5, the outsourcing disposal unit 6, and the internal utilization facility 7 may be different components or facilities in a specific embodiment and are not completely equivalent. The terms used in the present invention are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application.

[0187] Unless specifically stated otherwise, the relative arrangement of components and steps, the numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application.

[0188] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0189] Other matters not mentioned adopt the common practices in the prior art and will not be described in detail here.

[0190] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A full-process automated and real-time monitoring system for liquid hazardous waste, using a DCS control system for remote control, characterized in that: It includes the first hazardous waste work route, the second hazardous waste work route and the real-time monitoring system; The first hazardous waste work route is provided with a first waste production unit, and the first waste production unit is connected to a first intermediate tank, a storage tank, an external disposal unit, and an internal utilization facility through pipelines; The second hazardous waste work route is provided with a second waste production unit, and the second waste production unit is connected to a second intermediate tank, a storage tank, an external disposal unit, and an internal utilization facility through pipelines; The real-time monitoring system includes the following modules: Basic configuration module, used to maintain the operation permissions of internal personnel, the list of liquid hazardous waste involved, basic information of storage tanks, liquid hazardous waste transportation process, and transfer form records; The early warning model module is used to set the early warning parameter values ​​and rules for storage environment, alarm, outsourced disposal unit, data verification model, etc. When the detection parameter value exceeds the set value, the early warning work is started; Storage monitoring module, used for real-time monitoring of storage tank operation and liquid level; The ledger module automatically generates the ledger of liquid hazardous waste generation, the ledger of internal utilization of liquid hazardous waste, the ledger of outsourced disposal of liquid hazardous waste, the ledger of liquid hazardous waste entering tanks, and the ledger of liquid hazardous waste leaving tanks based on the ledger data generation rules. When the ledger is generated, the data verification model is enabled to verify the validity of the data. Self-assessment module, used to assess and demonstrate the safety and environmental risks of various liquid hazardous wastes; Abnormal recording module, used for pre-alarm original data storage and information push; Mobile terminal module, used for SMS push notification of abnormal record information; Operation module, used to visualize the entire process of liquid hazardous waste transportation and remote operation; The first hazardous waste working route and the second hazardous waste working route are controlled by a DCS system to enable the supervision system to conduct real-time monitoring of the entire process of liquid hazardous waste.

2. A liquid hazardous waste full-process automated operation and real-time monitoring system according to claim 1, characterized in that: On the first hazardous waste working route, the first valve, the first booster pump, the first flow meter and the eighth valve are installed in sequence on the pipeline between the first intermediate tank and the storage tank; the pipeline branches between the first flow meter and the eighth valve to form a first branch line, and the first branch line bypasses the storage tank and branches again, and is respectively connected to an outsourced disposal unit and internal utilization facilities.

3. A liquid hazardous waste full-process automated operation and real-time monitoring system according to claim 2, characterized in that: On the second hazardous waste working route, the pipeline coming out of the second intermediate tank is connected to the first branch line, and the second valve, the second booster pump and the second flow meter are installed in sequence on the pipeline between the second intermediate tank and the first branch line.

4. A liquid hazardous waste full-process automated operation and real-time monitoring system according to claim 3, characterized in that: The first branch line is provided with valves at each branch, and the third valve, the fourth valve, the sixth valve, the fifth valve and the seventh valve are provided in sequence.

5. The full-process automated operation and real-time monitoring system for liquid hazardous waste according to claim 1 is characterized in that: A liquid level sensor is installed on the top of the storage tank, a third booster pump is installed on the pipeline at the bottom of the storage tank, and a temperature sensor is installed on the side wall of the storage tank.

6. The full-process automated operation and real-time monitoring system for liquid hazardous waste according to claim 1 is characterized in that: A fourth flow meter is arranged at the entrance of the outsourced disposal unit, and a third flow meter is arranged at the entrance of the internal utilization facility.

7. The full-process automated operation and real-time monitoring system for liquid hazardous waste according to claim 1 is characterized in that: The basic configuration module includes an authority configuration module, a liquid hazardous waste inventory module, a storage tank information maintenance module, a liquid hazardous waste transportation process module, and a transfer form recording module; Among them, the permission configuration module is used to configure the operation rights and / or viewing rights and operation / viewing permission scope of the account; The liquid hazardous waste list module is used to maintain the liquid hazardous waste list and its properties involved in the enterprise, including waste name, waste category, waste code, waste characteristics, industry source, main chemical components and content, and density; The storage tank information maintenance module includes basic information, initial inventory, and transportation process; The liquid hazardous waste transportation process module is used to maintain the immediate production and immediate disposal process of directly transporting the liquid hazardous waste from the waste generating unit to the internal utilization facility or external disposal unit without passing through the storage tank; The transfer form record module is used to save and review the transfer forms from the output factory to the outsourced unit.

8. The full-process automated operation and real-time monitoring system for liquid hazardous waste according to claim 1 is characterized in that: The early warning model module includes a storage environment module, an alarm module, an outsourcing disposal module, and a data verification model module; Among them, the storage environment module is used to set the storage tank pre- / alarm liquid level height, storage temperature, storage time, operating pressure range, factory pipeline operating pressure range; and each sensor working position number; The alarm module can realize real-time viewing of storage tank and alarm monitoring videos and playback of alarm video records; the alarms include combustible gas alarms and toxic gas alarms.

9. The full-process automated operation and real-time monitoring system for liquid hazardous waste according to claim 1 is characterized in that: The liquid hazardous waste generation ledger includes: generation batch code, generation time, liquid hazardous waste name, waste category, waste code, main chemical components and content, hazardous characteristics, generation quantity, generation unit and generation unit code; The internal utilization record of liquid hazardous waste includes: self-utilization / disposal code, self-utilization / disposal time, liquid hazardous waste name, waste category, waste code, main chemical components and content, hazardous characteristics, self-utilization / disposal quantity, self-utilization / disposal method, facility name, facility code, and production batch code; The external disposal record of liquid hazardous waste includes: outsourcing utilization / disposal code, factory time, liquid hazardous waste name, waste category, waste code, main chemical components and content, hazardous characteristics, outsourcing utilization / disposal quantity, outsourcing utilization / disposal method, outsourcing utilization / disposal unit name, license number, and generated batch code; The record of liquid hazardous waste entering the tank includes: batch code, time of entry, name of liquid hazardous waste, waste category, waste code, main chemical components and content, hazardous characteristics, entry quantity, batch code, and production unit; The liquid hazardous waste out-of-tank account includes: out-of-tank batch code, out-of-tank time, liquid hazardous waste name, waste category, waste code, main chemical components and content, hazardous characteristics, and out-of-tank quantity; Based on the liquid hazardous waste pipeline flow meter, the values ​​of production volume, treatment volume, tank inflow volume, and tank outflow volume are automatically generated. The rules for generating ledger data are as follows: The amount of production or treatment on the Nth day: the mass flow reading at zero o'clock on the N+1th day - the mass flow reading at zero o'clock on the Nth day; or (the volume flow reading at zero o'clock on the N+1th day - the volume flow reading at zero o'clock on the Nth day) × the density of liquid hazardous waste; at zero o'clock on the N+1th day, a piece of data is automatically generated as the amount of production / treatment on the Nth day; Real-time inflow or outflow of the tank: mass flow reading when the pump stops - mass flow reading before the pump starts; or (volume flow reading when the pump stops - volume flow reading before the pump starts) × density of liquid hazardous waste; every time liquid hazardous waste is detected to enter or leave the tank, a piece of data information is automatically generated in real time; The data in other fields of each ledger are maintained by the basic configuration module and are automatically read and generated by the system.

10. A liquid hazardous waste full-process automated operation and real-time monitoring system according to claim 9, characterized in that: When the ledger is generated, the data verification model is automatically started to verify the validity of the data; Determine that the amount produced is equal to the amount processed, that is, Or determine that the amount produced is equal to the sum of the storage amount and the processing amount, that is, The data passes verification; Among them, D is the daily processing volume, P is the daily production volume, S is the current storage tank bottom area, H is the current storage tank liquid level height, V0 is the initial tank capacity, ρ is the current liquid hazardous waste density, and AEV is the acceptable error value of this model data.

11. The full-process automated operation and real-time monitoring system for liquid hazardous waste according to claim 1 is characterized in that: The self-assessment module includes a storage statistics analysis unit, an abnormal statistics analysis unit, and an assessment unit; Among them, the storage statistical analysis unit takes each storage tank as the object, comprehensively analyzes the storage quantity of liquid hazardous waste, storage environment conditions and abnormal operation conditions, and analyzes the main risk points of the storage tank; the abnormal statistical analysis unit takes each liquid hazardous waste as the object, comprehensively analyzes the abnormal warning / alarm conditions such as storage environment, alarms, data verification, and analyzes and evaluates high warning / alarm risk points; Assessment unit: Based on the first two units, through the liquid hazardous waste safety and environmental risk assessment model, the main risk links of liquid hazardous waste are identified to improve the company's refined management level of liquid hazardous waste.

12. The full-process automated operation and real-time monitoring system for liquid hazardous waste according to claim 1 is characterized in that: The mobile terminal module is associated with the abnormal record module, and each time an abnormal record information is generated, a text message reminder is sent to the corresponding responsible person; Includes facility name, facility number, type, warning / alarm description, start time, end time, status, submission instructions, responsible person, and contact information.

13. A method for a full-process automated operation and real-time monitoring system for liquid hazardous waste, using a full-process automated operation and real-time monitoring system for business hazardous waste as claimed in any one of claims 1 to 12, characterized in that: These include: The entire process is controlled by the DCS system. The first hazardous waste working route and the second hazardous waste working route can work simultaneously or separately. When the first hazardous waste working route is in operation, the liquid hazardous waste generated by the first waste-producing unit is transported to the first intermediate tank through the pipeline. When the first valve and the eighth valve are opened and the third valve is closed, the liquid hazardous waste is pumped into the storage tank through the first booster pump and the first flow meter. When it is to be disposed of by an external contractor, the sixth valve is closed and the liquid hazardous waste is sent to the external contractor through the pipeline through the fifth valve and the fourth flow meter through the third booster pump; and / or, when it is time to use it internally, the fifth valve is closed, the sixth valve and the seventh valve are opened, and the third booster pump is used to deliver the liquid to the internal utilization facility through the pipeline and the third flow meter; And / or, the eighth valve and the seventh valve are closed, and the liquid hazardous waste generated by the first waste-producing unit is transported to the first intermediate tank through the pipeline, and then sent to the outsourced disposal unit through the first valve, the first booster pump, the first flow meter, the third valve, the fourth valve, the sixth valve, the fifth valve, and the fourth flow meter; and / or, the eighth valve and the sixth valve are closed, and the liquid hazardous waste generated by the first waste-generating unit is transported to the first intermediate tank through the pipeline, and then to the internal utilization facility through the first valve, the first booster pump, the first flowmeter, the third valve, the fourth valve, the seventh valve, and the third flowmeter; When the second hazardous waste working route is in operation, the liquid hazardous waste generated by the second waste-producing unit is transported to the second intermediate tank through the pipeline. When the second valve, the third valve, and the eighth valve are opened and the fourth valve is closed, the liquid hazardous waste is pumped into the storage tank through the second booster pump and the second flow meter. When it is to be disposed of by an external contractor, the sixth valve is closed and the liquid hazardous waste is sent to the external contractor through the pipeline through the third booster pump, the fifth valve, and the fourth flow meter. and / or, when it is time to use it internally, the fifth valve is closed, the sixth valve and the seventh valve are opened, and the third booster pump is used to deliver the liquid to the internal utilization facility through the pipeline and the third flow meter; And / or, when the second valve, the fourth valve, the sixth valve, and the fifth valve are opened, and the third valve and the seventh valve are closed, the liquid hazardous waste is sent to the outsourced disposal unit through the second booster pump, the second flow meter, and the fourth flow meter; and / or, when the second valve, the fourth valve, and the seventh valve are opened, and the third valve and the sixth valve are closed, the liquid hazardous waste is delivered to the internal utilization facility through the second booster pump, the second flow meter, and the third flow meter; When the first hazardous waste working route and the second hazardous waste working route transport the same type of liquid hazardous waste and both need to be transported to the storage tank for temporary storage, the liquid hazardous waste generated by the first waste-producing unit is transported through the pipeline and temporarily stored in the first intermediate tank. When the first valve and the eighth valve are opened, the liquid hazardous waste is pumped into the storage tank through the first booster pump and the first flow meter for temporary storage; the liquid hazardous waste generated by the second waste-producing unit is temporarily stored in the second intermediate tank through the pipeline. When the second valve and the third valve are opened and the fourth valve is closed, the liquid hazardous waste is pumped into the storage tank through the second booster pump and the second flow meter for temporary storage; when the liquid hazardous waste in the storage tank is outsourced for disposal, the fifth valve is opened, the sixth valve is closed, and it is sent to the outsourced disposal unit through the fourth flow meter; And / or, when the liquid hazardous waste in the storage tank is to be utilized internally, the fifth valve is closed, the sixth valve and the seventh valve are opened, and the waste is delivered to the internal utilization facility via the third booster pump and the third flow meter; When the entire process is automated, the real-time monitoring system is used to dynamically grasp the status of the liquid hazardous waste disposal process in the entire plant, monitor the remaining storage volume of the storage tank, liquid level trends, storage environment and other operating conditions in real time, effectively control internal utilization and outsourced disposal status, automatically generate electronic ledgers for each stage and verify data accuracy in real time, and pre-alarm for abnormal situations in the entire process, thereby realizing remote information-based supervision of the entire process of liquid hazardous waste collection, pipeline transportation, storage, internal utilization, and external disposal.

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