Risk assessment grading method for dangerous chemical enterprises

Abstract

The invention discloses a risk assessment grading method for dangerous chemical enterprises, and relates to the technical field of safety management. In order to assist enterprises to know own safety risk conditions more clearly and accurately, the adopted scheme comprises the following steps: collecting seven data of enterprise characteristics, risk source conditions, safety management capability, accident records, emergency capability and regional and time sensitivity of dangerous chemical enterprises, converting the data into quantifiable indexes, and constructing a safety production risk evaluation system; respectively designing calculation models corresponding to the seven items of data, and calculating an actual score of each item of data; constructing an enterprise risk calculation model and summarizing the actual score of each item of data, and finally generating an enterprise risk value; and according to high-low ranking of the risk values, risk levels are divided according to a preset proportion interval, and enterprise risk level-to-level management is realized. According to the invention, the enterprise is helped to more comprehensively understand the safety risk condition of the enterprise, so that risk control measures can be formulated and implemented in a targeted manner.

Description

Technical Field

[0001] This invention relates to the field of safety management technology, specifically a risk assessment and classification method for hazardous chemical enterprises. Background Technology

[0002] In the field of safety management for hazardous chemical enterprises, risk assessment and classification is a crucial task. Currently, the industry generally uses a percentage-based system for this work. Based on the assessment and diagnosis results, enterprises are divided into four levels according to the degree of risk, from high to low: Red Level (score below 60 points), Orange Level (score between 60 and 75 points, excluding 75 points), Yellow Level (score between 75 and 90 points, excluding 90 points), and Blue Level (score of 90 points or above).

[0003] In terms of specific risk dimensions, such as process risk, equipment and facility risk, and tank farm risk, there are clear and detailed classification standards and criteria. For example, hazardous chemical processes that are included in the key regulatory scope are usually classified as Grade A (red) risk; while some other processes that are not classified into the typical chemical process sequence may be judged as Grade C (yellow) risk.

[0004] In practice, hazardous chemical companies often employ a combination of methods in risk assessment. Common methods include traditional approaches such as safety checklists, hazard and operability studies, and failure type and impact analysis. Furthermore, with continuous advancements in science and technology, a range of advanced detection technologies and data analysis methods are gradually being integrated into risk assessment systems. For instance, sensors are used to monitor key parameters such as the concentration and temperature of hazardous chemicals in real time, and big data analytics is employed to deeply mine and analyze massive amounts of historical data, thereby more accurately identifying potential risks.

[0005] Based on the specific results of the risk assessment of hazardous chemicals, enterprises will formulate and implement a series of targeted risk control measures. These measures cover multiple aspects, including technological upgrading, optimization and improvement of operating procedures, strengthening of employee safety training and education, and careful preparation of emergency plans. At the same time, to ensure the effectiveness and adaptability of risk control measures, enterprises will also conduct regular comprehensive assessments and dynamic adjustments to ensure they can fully cope with fluctuations in production conditions and changes in the external environment.

[0006] However, existing risk assessment systems still have certain limitations. To help enterprises gain a clearer and more accurate understanding of their own safety risks, it is necessary to design a risk assessment and grading method specifically for hazardous chemical enterprises. This method aims to help enterprises strictly comply with all relevant regulations on the safety management of hazardous chemicals, effectively avoid penalties that may be incurred due to violations, thereby comprehensively improving the enterprise's safety management level, effectively protecting the lives of employees and the safety of the surrounding environment, and promoting the enterprise to achieve its sustainable development goals. Summary of the Invention

[0007] This invention addresses the needs and shortcomings of current technological development by providing a risk assessment and classification method for hazardous chemical enterprises.

[0008] The present invention provides a risk assessment and classification method for hazardous chemical enterprises, and the technical solution adopted to solve the above-mentioned technical problems is as follows:

[0009] A risk assessment and classification method for hazardous chemical enterprises includes the following steps:

[0010] S1. Collect multi-dimensional data on hazardous chemical enterprises according to their risk characteristics, including seven items: enterprise characteristics, risk source status, safety management capabilities, accident occurrence status, emergency response capabilities, enterprise regional sensitivity status, and enterprise time sensitivity status. The collecting party shall periodically review and correct the collected data.

[0011] S2. Based on the three dimensions of risk probability, consequence severity and accident sensitivity, the seven collected data items are transformed into specific quantifiable indicators according to the SMART principle, providing an indicator basis for building a risk calculation model, and finally forming a comprehensive risk assessment indicator system for enterprise safety production.

[0012] S3. Based on the comprehensive risk assessment index system for enterprise safety production, calculation models are designed for the indicators included in the seven data items: enterprise characteristics, risk source status, safety management capability, accident occurrence status, emergency response capability, enterprise regional sensitivity status, and enterprise time sensitivity status. The actual score of each data item is obtained through each calculation model. An enterprise risk calculation model is constructed and the actual scores of all calculation models are summarized to finally generate the enterprise risk value, providing a quantitative basis for risk classification.

[0013] S4. Based on the enterprise risk value calculated by the enterprise risk classification model, and following the Pareto principle, sort the enterprises from high to low according to their enterprise risk values, and then classify the risk levels according to the preset ratio range.

[0014] Optionally, the enterprise characteristic items involved include three indicators: industry attributes, enterprise size, and fire safety. The enterprise characteristic item calculation model sums the products of each indicator value and its corresponding weight to obtain the actual score of the enterprise characteristic item.

[0015] The expression for the enterprise characteristic item calculation model is as follows:

[0016]

[0017] In the formula, n represents the number of indicators included in the enterprise characteristic item, specifically taking a value of 3, A 1i α represents the value of the i-th indicator in the enterprise characteristic items based on preset grading rules. 1i This represents the weight of the i-th indicator in the enterprise characteristic items.

[0018] Optionally, the risk source status items include five indicators: the number of major hazard sources, the number of first- and second-level risk points, the number of major hidden dangers under supervision, the number of special equipment, and the number of special operation personnel. The risk source status item calculation model sums the products of each indicator value and its corresponding weight to obtain the actual score of the risk source status item.

[0019] The expression for the risk source status item calculation model is as follows:

[0020]

[0021] In the formula, m represents the number of indicators included in the risk source status item, specifically taking a value of 5, A 2i α represents the value of the i-th indicator in the risk source status item based on a preset classification rule. 2i This represents the weight of the i-th indicator in the risk source status item.

[0022] Optionally, the safety management capability items involved include four indicators: the number of full-time safety management personnel, the level of compliance with safety production standardization, whether the enterprise has passed occupational safety and health management system certification, and the maturity of enterprise safety management. The safety management capability item calculation model sums the products of each indicator value and its corresponding weight to obtain the actual score of the safety management capability item.

[0023] The expression for the calculation model of safety management capability items is as follows:

[0024]

[0025] In the formula, p represents the number of indicators included in the safety management capability item, specifically taking a value of 4, A 3i α represents the value of the i-th indicator in the safety management capability category based on preset grading rules. 3i This represents the weight of the i-th indicator in the safety management capability category.

[0026] Optionally, the accident occurrence status item includes three indicators: the number of accidents in the previous year, the number of work-related accidents in the previous year, and the number of accidents causing economic losses of one million yuan in output value in the previous year. The accident occurrence status item calculation model sums the products of each indicator value and its corresponding weight to obtain the actual score of the accident occurrence status item.

[0027] The expression for the calculation model of the accident occurrence status item is as follows:

[0028]

[0029] In the formula, q represents the number of indicators included in the accident occurrence status item, specifically taking a value of 3, A 4i This represents the value of the i-th indicator in the accident occurrence status item based on a preset grading rule, α. 4i This represents the weight of the i-th indicator in the accident occurrence status item.

[0030] Optionally, the emergency response capability items include four indicators: emergency plan management, emergency supplies, number of emergency team personnel, and number of employee emergency drills in the previous year. The emergency response capability item calculation model sums the products of each indicator value and its corresponding weight to obtain the actual score of the emergency response capability item.

[0031] The expression for the emergency response capability calculation model is as follows:

[0032]

[0033] In the formula, r represents the number of indicators included in the emergency response capability item, specifically taking a value of 4, A 5i α represents the value of the i-th indicator in the emergency response capability category based on preset grading rules. 5i This represents the weight of the i-th indicator in the emergency response capability category.

[0034] Optionally, the enterprise's regional sensitivity items include two indicators: enterprise environmental location and enterprise geographical location. The calculation model for enterprise regional sensitivity items is to sum the products of each indicator value and its corresponding weight to obtain the actual score of the enterprise's regional sensitivity items.

[0035] The expression for the calculation model of the enterprise's regional sensitivity status item is as follows:

[0036]

[0037] In the formula, s represents the number of indicators included in the enterprise's regional sensitivity item, specifically taking a value of 2, A 6i This represents the value of the i-th indicator in the enterprise's regional sensitivity category, based on a preset classification rule. α 6i This represents the weight of the i-th indicator in the enterprise's regional sensitivity category.

[0038] Optionally, the time-sensitive status items of enterprises involved include enterprise safety production cycle indicators. The calculation model of enterprise time-sensitive status items is obtained by summing the products of the enterprise safety production cycle indicator values ​​and their corresponding weights.

[0039] The expression for the calculation model of enterprise time-sensitive status items is as follows:

[0040]

[0041] In the formula, t represents the number of indicators included in the enterprise's time-sensitive status item, specifically taking a value of 1, A 7i This represents the value of the i-th indicator in the enterprise's time-sensitive status category, based on a preset grading rule, α. 7i This represents the weight of the i-th indicator in the enterprise's time-sensitive status items.

[0042] Alternatively, the enterprise risk calculation model involved is the sum of the calculation models corresponding to seven data points: enterprise characteristics, risk source status, safety management capabilities, accident occurrence status, emergency response capabilities, enterprise regional sensitivity, and enterprise time sensitivity. The expression is as follows:

[0043] R = Z1 + Z2 + Z3 + Z4 + Z5 + Z6 + Z7

[0044] In the formula, Z1 represents the actual score of the enterprise characteristic item calculation model; Z2 represents the actual score of the risk source status item calculation model; Z3 represents the actual score of the safety management capability item calculation model; Z4 represents the actual score of the accident occurrence status item calculation model; Z5 represents the actual score of the emergency response capability item calculation model; Z6 represents the actual score of the enterprise regional sensitivity item calculation model; Z7 represents the actual score of the enterprise time sensitivity item calculation model; and R represents the enterprise risk value.

[0045] Optionally, risk levels can be categorized based on preset ratio ranges, as follows:

[0046] Companies ranked in the top 20% or higher are classified as Level 1 risk companies.

[0047] Companies ranked between 20% and 50% (including 50%) are classified as Level 2 risk companies.

[0048] Companies ranked between 50% and 80% (including 80%) are classified as Level 3 risk companies.

[0049] Companies ranked below 80% are classified as Level 4 risk companies.

[0050] The risk classification process is completed using the rules described above.

[0051] The risk assessment and classification method for hazardous chemical enterprises proposed in this invention has the following advantages compared with the prior art:

[0052] 1. This invention collects relevant data on hazardous chemical enterprises through multiple channels, covering dimensions such as enterprise characteristics, risk source status, safety management capabilities, accident occurrence status, emergency response capabilities, enterprise regional sensitivity, and enterprise time sensitivity. Then, through various calculation models and enterprise risk calculation models for hazardous chemical enterprises, an assessment is carried out based on the comprehensive risk classification standard for hazardous chemical enterprises, and finally, the enterprise risk level assessment result is obtained.

[0053] 2. This invention helps enterprises to gain a more comprehensive understanding of their own safety risks, thereby enabling them to develop and implement targeted risk control measures. By conducting risk assessment and classification of hazardous chemical enterprises, it can help them strictly comply with various relevant regulations on the safety management of hazardous chemicals, effectively avoid penalties that may be incurred due to violations, and thus comprehensively improve the enterprise's safety management level, effectively protect the lives and safety of employees and the surrounding ecological environment, and promote the enterprise to achieve its sustainable development goals. Attached Figure Description

[0054] Appendix Figure 1 This is a flowchart of the method of the present invention. Detailed Implementation

[0055] To make the technical solution, the technical problem solved, and the technical effect of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with specific embodiments.

[0056] Example 1:

[0057] Combined with appendix Figure 1 This embodiment proposes a risk assessment and classification method for hazardous chemical enterprises, which includes the following steps:

[0058] S1. Collect multi-dimensional data on hazardous chemical enterprises according to their risk characteristics, including seven items: enterprise characteristics, risk source status, safety management capabilities, accident occurrence status, emergency response capabilities, enterprise regional sensitivity status, and enterprise time sensitivity status. The collecting party shall periodically review and correct the collected data.

[0059] S2. Based on the three dimensions of risk probability, severity of consequences and accident sensitivity, the seven collected data items are transformed into specific quantifiable indicators according to the SMART principle, providing an indicator basis for building a risk calculation model, and finally forming a comprehensive risk assessment indicator system for enterprise safety production.

[0060] S3. Based on the comprehensive risk assessment index system for enterprise safety production, calculation models are designed for the indicators included in the seven data items: enterprise characteristics, risk source status, safety management capability, accident occurrence status, emergency response capability, enterprise regional sensitivity status, and enterprise time sensitivity status. The actual score of each data item is obtained through each calculation model. An enterprise risk calculation model is constructed and the actual scores of all calculation models are summarized to finally generate the enterprise risk value, providing a quantitative basis for risk classification.

[0061] The enterprise characteristics involved include three indicators: industry attributes, enterprise size, and fire safety, as shown in Table 1 below.

[0062] Table 1

[0063]

[0064] The enterprise characteristic item calculation model calculates the actual score of each enterprise characteristic item by summing the products of each indicator value and its corresponding weight. The expression for the enterprise characteristic item calculation model is as follows:

[0065]

[0066] In the formula, n represents the number of indicators included in the enterprise characteristic item, specifically taking a value of 3, A 1i α represents the value of the i-th indicator in the enterprise characteristic items based on preset grading rules. 1i This represents the weight of the i-th indicator in the enterprise characteristic items.

[0067] The risk source status items involved include five indicators: the number of major hazard sources, the number of first-level and second-level risk points, the number of major hidden dangers under supervision, the number of special equipment, and the number of special operation personnel, as shown in Table 2 below.

[0068] Table 2

[0069]

[0070] The risk source status item calculation model calculates the actual score of the risk source status item by summing the products of each indicator value and its corresponding weight. The expression for the risk source status item calculation model is as follows:

[0071]

[0072] In the formula, m represents the number of indicators included in the risk source status item, specifically taking a value of 5, A 2i α represents the value of the i-th indicator in the risk source status item based on a preset classification rule. 2i This represents the weight of the i-th indicator in the risk source status item.

[0073] The safety management capabilities involved include four indicators: the number of full-time safety management personnel, the level of compliance with safety production standardization, whether the enterprise has passed occupational safety and health management system certification, and the maturity of enterprise safety management, as shown in Table 3 below.

[0074] Table 3

[0075]

[0076]

[0077] The safety management capability calculation model calculates the actual score for each capability by summing the products of each indicator value and its corresponding weight. The expression for the safety management capability calculation model is as follows:

[0078]

[0079] In the formula, p represents the number of indicators included in the safety management capability item, specifically taking a value of 4, A 3i α represents the value of the i-th indicator in the safety management capability category based on preset grading rules. 3i This represents the weight of the i-th indicator in the safety management capability category.

[0080] The accident occurrence status items include three indicators: the number of accidents in the previous year, the number of work-related accidents in the previous year, and the number of accidents resulting in economic losses of one million yuan in output value in the previous year, as shown in Table 4 below.

[0081] Table 4

[0082]

[0083] The accident occurrence status item calculation model calculates the actual score by summing the products of each indicator value and its corresponding weight. The expression for the accident occurrence status item calculation model is as follows:

[0084]

[0085] In the formula, q represents the number of indicators included in the accident occurrence status item, specifically taking a value of 3, A 4i This represents the value of the i-th indicator in the accident occurrence status item based on a preset grading rule, α. 4i This represents the weight of the i-th indicator in the accident occurrence status item.

[0086] The emergency response capabilities involved include four indicators: emergency plan management, emergency supplies, number of emergency team personnel, and number of employee emergency drills in the previous year, as shown in Table 5 below.

[0087] Table 5

[0088]

[0089] The emergency response capability calculation model calculates the actual score for each capability by summing the products of each indicator value and its corresponding weight. The expression for the emergency response capability calculation model is as follows:

[0090]

[0091] In the formula, r represents the number of indicators included in the emergency response capability item, specifically taking a value of 4, A 5i α represents the value of the i-th indicator in the emergency response capability category based on preset grading rules. 5i This represents the weight of the i-th indicator in the emergency response capability category.

[0092] The sensitive status of enterprises involved includes two indicators: enterprise environmental location and enterprise geographical location, as shown in Table 6 below.

[0093] Table 6

[0094]

[0095] The calculation model for the enterprise's regional sensitivity item calculates the actual score by summing the products of each indicator value and its corresponding weight. The expression for the enterprise's regional sensitivity item calculation model is as follows:

[0096]

[0097] In the formula, s represents the number of indicators included in the enterprise's regional sensitivity item, specifically taking a value of 2, A 6i This represents the value of the i-th indicator in the enterprise's regional sensitivity category, based on a preset classification rule. α 6i This represents the weight of the i-th indicator in the enterprise's regional sensitivity category.

[0098] The time-sensitive items involved for enterprises include enterprise safety production cycle indicators, as shown in Table 7 below.

[0099] Table 7

[0100]

[0101] The calculation model for enterprise time-sensitive status items is to sum the products of the enterprise's safety production cycle index values ​​and their corresponding weights to obtain the actual score of the enterprise's time-sensitive status items.

[0102] The expression for the calculation model of enterprise time-sensitive status items is as follows:

[0103]

[0104] In the formula, t represents the number of indicators included in the enterprise's time-sensitive status item, specifically taking a value of 1, A 7i This represents the value of the i-th indicator in the enterprise's time-sensitive status category, based on a preset grading rule, α. 7i This represents the weight of the i-th indicator in the enterprise's time-sensitive status items.

[0105] The enterprise risk calculation model involved is the sum of the calculation models corresponding to seven data points: enterprise characteristics, risk source status, safety management capabilities, accident occurrence status, emergency response capabilities, enterprise regional sensitivity, and enterprise time sensitivity. The expression is as follows:

[0106] R = Z1 + Z2 + Z3 + Z4 + Z5 + Z6 + Z7

[0107] In the formula, Z1 represents the actual score of the enterprise characteristic item calculation model; Z2 represents the actual score of the risk source status item calculation model; Z3 represents the actual score of the safety management capability item calculation model; Z4 represents the actual score of the accident occurrence status item calculation model; Z5 represents the actual score of the emergency response capability item calculation model; Z6 represents the actual score of the enterprise regional sensitivity item calculation model; Z7 represents the actual score of the enterprise time sensitivity item calculation model; and R represents the enterprise risk value.

[0108] S4. Based on the enterprise risk value calculated by the enterprise risk classification model, and following the Pareto principle, sort the enterprises from high to low according to their enterprise risk values, and then classify the risk levels according to the preset ratio range.

[0109] When performing step S4, the risk level is divided according to the preset ratio range, as follows:

[0110] Companies ranked in the top 20% or higher are classified as Level 1 risk companies.

[0111] Companies ranked between 20% and 50% (including 50%) are classified as Level 2 risk companies.

[0112] Companies ranked between 50% and 80% (including 80%) are classified as Level 3 risk companies.

[0113] Companies ranked below 80% are classified as Level 4 risk companies.

[0114] The risk classification process is completed using the rules described above.

[0115] In summary, the risk assessment and classification method for hazardous chemical enterprises proposed in this invention can help enterprises strictly comply with all relevant regulations on the safety management of hazardous chemicals, effectively avoid penalties that may be incurred due to violations, thereby comprehensively improving the enterprise's safety management level, effectively protecting the lives and safety of employees and the surrounding ecological environment, and promoting the enterprise to achieve its sustainable development goals.

[0116] The above specific examples illustrate the principles and implementation methods of the present invention in detail. These embodiments are merely for the purpose of helping to understand the core technical content of the present invention. Based on the above specific embodiments of the present invention, any improvements and modifications made to the present invention by those skilled in the art without departing from the principles of the present invention should fall within the patent protection scope of the present invention.

Claims

1. A risk assessment and classification method for hazardous chemical enterprises, characterized in that, Includes the following steps: S1. Collect multi-dimensional data on hazardous chemical enterprises according to their risk characteristics, including seven items: enterprise characteristics, risk source status, safety management capabilities, accident occurrence status, emergency response capabilities, enterprise regional sensitivity status, and enterprise time sensitivity status. The collecting party shall periodically review and correct the collected data. S2. Based on the three dimensions of risk probability, consequence severity and accident sensitivity, the seven collected data items are transformed into specific quantifiable indicators according to the SMART principle, providing an indicator basis for building a risk calculation model, and finally forming a comprehensive risk assessment indicator system for enterprise safety production. S3. Based on the comprehensive risk assessment index system for enterprise safety production, design calculation models for the indicators contained in the seven data items: enterprise characteristics, risk source status, safety management capability, accident occurrence status, emergency response capability, enterprise regional sensitivity status, and enterprise time sensitivity status. The actual score of each data item is obtained through each calculation model. Construct enterprise risk calculation models and summarize the actual scores of all calculation models to finally generate enterprise risk values, providing a quantitative basis for risk classification. S4. Based on the enterprise risk value calculated by the enterprise risk classification model, and following the Pareto principle, sort the enterprises from high to low according to their enterprise risk values, and then classify the risk levels according to the preset ratio range.

2. The risk assessment and classification method for hazardous chemical enterprises according to claim 1, characterized in that, The enterprise characteristic items include three indicators: industry attributes, enterprise size, and fire safety. The enterprise characteristic item calculation model sums the products of each indicator value and its corresponding weight to obtain the actual score of the enterprise characteristic item. The expression for the enterprise characteristic item calculation model is as follows: In the formula, n represents the number of indicators included in the enterprise characteristic item, specifically taking a value of 3, A 1i α represents the value of the i-th indicator in the enterprise characteristic items based on preset grading rules. 1i This represents the weight of the i-th indicator in the enterprise characteristic items.

3. The risk assessment and classification method for hazardous chemical enterprises according to claim 2, characterized in that, The risk source status item includes five indicators: the number of major hazard sources, the number of first- and second-level risk points, the number of major hidden dangers under supervision, the number of special equipment, and the number of special operation personnel. The risk source status item calculation model sums the products of each indicator value and its corresponding weight to obtain the actual score of the risk source status item. The expression for the risk source status item calculation model is as follows: In the formula, m represents the number of indicators included in the risk source status item, specifically taking a value of 5, A 2i α represents the value of the i-th indicator in the risk source status item based on a preset classification rule. 2i This represents the weight of the i-th indicator in the risk source status item.

4. The risk assessment and classification method for hazardous chemical enterprises according to claim 3, characterized in that, The safety management capability item includes four indicators: the number of full-time safety management personnel, the level of compliance with safety production standardization, whether the enterprise has passed occupational safety and health management system certification, and the maturity of enterprise safety management. The calculation model of the safety management capability item is to sum the products of each indicator value and its corresponding weight to obtain the actual score of the safety management capability item. The expression for the calculation model of safety management capability items is as follows: In the formula, p represents the number of indicators included in the safety management capability item, specifically taking a value of 4, A 3i α represents the value of the i-th indicator in the safety management capability category based on preset grading rules. 3i This represents the weight of the i-th indicator in the safety management capability category.

5. The risk assessment and classification method for hazardous chemical enterprises according to claim 4, characterized in that, The accident occurrence status item includes three indicators: the number of accidents in the previous year, the number of work-related accidents in the previous year, and the number of accidents causing economic losses of one million yuan in output value in the previous year. The accident occurrence status item calculation model sums the products of each indicator value and its corresponding weight to obtain the actual score of the accident occurrence status item. The expression for the calculation model of the accident occurrence status item is as follows: In the formula, q represents the number of indicators included in the accident occurrence status item, specifically taking a value of 3, A 4i This represents the value of the i-th indicator in the accident occurrence status item based on a preset grading rule, α. 4i This represents the weight of the i-th indicator in the accident occurrence status item.

6. The risk assessment and classification method for hazardous chemical enterprises according to claim 5, characterized in that, The emergency response capability item includes four indicators: emergency plan management, emergency supplies, number of emergency team personnel, and number of employee emergency drills in the previous year. The emergency response capability item calculation model sums the products of each indicator value and its corresponding weight to obtain the actual score of the emergency response capability item. The expression for the emergency response capability calculation model is as follows: In the formula, r represents the number of indicators included in the emergency response capability item, specifically taking a value of 4, A 5i α represents the value of the i-th indicator in the emergency response capability category based on preset grading rules. 5i This represents the weight of the i-th indicator in the emergency response capability category.

7. The risk assessment and classification method for hazardous chemical enterprises according to claim 6, characterized in that, The enterprise's regional sensitivity status item includes two indicators: enterprise environmental location and enterprise geographical location. The calculation model for the enterprise's regional sensitivity status item is to sum the products of each indicator value and its corresponding weight to obtain the actual score of the enterprise's regional sensitivity status item. The expression for the calculation model of the enterprise's regional sensitivity status item is as follows: In the formula, s represents the number of indicators included in the enterprise's regional sensitivity item, specifically taking a value of 2, A 6i This represents the value of the i-th indicator in the enterprise's regional sensitivity category, based on a preset classification rule. α 6i This represents the weight of the i-th indicator in the enterprise's regional sensitivity category.

8. The risk assessment and classification method for hazardous chemical enterprises according to claim 7, characterized in that, The enterprise time-sensitive status item includes the enterprise safety production cycle indicator. The calculation model of the enterprise time-sensitive status item is obtained by summing the product of the enterprise safety production cycle indicator value and the corresponding weight. The expression for the calculation model of enterprise time-sensitive status items is as follows: In the formula, t represents the number of indicators included in the enterprise's time-sensitive status item, specifically taking a value of 1, A 7i This represents the value of the i-th indicator in the enterprise's time-sensitive status category, based on a preset grading rule, α. 7i This represents the weight of the i-th indicator in the enterprise's time-sensitive status items.

9. A risk assessment and classification method for hazardous chemical enterprises according to claim 8, characterized in that, The enterprise risk calculation model is the sum of the calculation models corresponding to seven data points: enterprise characteristics, risk source status, safety management capabilities, accident occurrence status, emergency response capabilities, enterprise regional sensitivity, and enterprise time sensitivity. Its expression is as follows: R = Z1 + Z2 + Z3 + Z4 + Z5 + Z6 + Z7 In the formula, Z1 represents the actual score of the enterprise characteristic item calculation model; Z2 represents the actual score of the risk source status item calculation model. Z3 represents the actual score of the safety management capability calculation model; Z4 represents the actual score of the accident occurrence status calculation model; Z5 represents the actual score of the emergency response capability calculation model; Z6 represents the actual score of the enterprise's regional sensitivity status calculation model; Z7 represents the actual score of the enterprise's time-sensitive status calculation model; R represents the firm's risk value.

10. A risk assessment and classification method for hazardous chemical enterprises according to claim 1, characterized in that, Risk levels are categorized according to preset proportion ranges, as follows: Companies ranked in the top 20% or higher are classified as Level 1 risk companies. Companies ranked between 20% and 50% (including 50%) are classified as Level 2 risk companies. Companies ranked between 50% and 80% (including 80%) are classified as Level 3 risk companies. Companies ranked below 80% are classified as Level 4 risk companies. The risk classification process is completed using the above rules.

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