Compatibility method for cement kiln solid hazardous waste
By establishing a solid hazardous waste information database and a real-time monitoring and feedback system in the cement kiln, combining the compatibility ratio algorithm and harmful element control room, the intelligent identification and precise compatibility of solid hazardous waste are achieved, and the problems of low efficiency and emission of hazardous substances in traditional compatibility methods are solved, and the efficient, safe, resource-based utilization of solid hazardous waste and the stability of cement product quality are achieved.
Patent Information
- Application Number
- CN202510234359.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2025-06-20
AI Technical Summary
When traditional cement kilns deal with multi-source solid hazardous waste, the compatibility method relies on manual experience, making it difficult to comprehensively and effectively deal with the diversity of solid hazardous waste, resulting in low compatibility efficiency, unstable operation of cement kilns, increased emissions of harmful substances, and pose a threat to the quality of cement products.
A cement kiln solid hazardous waste compatibility method is proposed. By establishing a solid hazardous waste information database and real-time monitoring and feedback system, solid hazardous waste is intelligently identified, accurately classified and matched, and using the compatibility ratio algorithm and harmful element control room to achieve efficient, safe and resource-based utilization of solid hazardous waste, and providing intuitive compatibility scheme display and adjustment tools through the visual operation interface.
It has achieved efficient, safe and resource-based utilization of solid hazardous waste in cement kilns, improved the fuel substitution rate of cement kilns, reduced the emission of harmful substances, ensured the stability of cement product quality, and reduced the impact on the working conditions of cement kilns.
Smart Images
Figure CN120183522A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of solid waste and hazardous waste treatment, and particularly relates to a method for mixing solid and hazardous wastes in a cement kiln. Background Art
[0002] With the accelerating advancement of industrialization and urbanization, the generation of solid waste and hazardous waste has increased sharply, and their effective and safe treatment and resource utilization have become urgent problems to be solved. Co-disposal of solid and hazardous wastes in a cement kiln, as an environmentally friendly treatment method, has attracted much attention and application because it can significantly reduce the consumption of fossil fuels and greenhouse gas emissions. Developing raw fuel substitution technology is an effective way to achieve carbon emission reduction and cost reduction in the cement industry.
[0003] However, in the face of the characteristics of a wide variety of solid and hazardous wastes, complex and variable compositions, significant differences in calorific values, and unfixed harmful components, the mixing methods of traditional cement kilns for treating multi-source solid and hazardous wastes often rely on manual experience and are difficult to comprehensively and effectively address the complex challenges brought by these diversities. There are problems such as low mixing efficiency, unstable operation of the cement kiln, increased emissions of harmful substances, and threats to the quality of cement products.
[0004] Therefore, developing a technical system that can intelligently identify and accurately mix, improving the fuel substitution rate of the cement kiln, reducing the impact of the solid and hazardous waste disposal process on the operating conditions of the cement kiln, maximizing the suppression of the generation of harmful components in the flue gas from the source, and ensuring the stable and qualified control of the flue gas emissions and the content of harmful elements in the clinker has become the key to the current green and low-carbon development of the industry. Summary of the Invention
[0005] The purpose of the present invention is to overcome the above problems existing in the prior art, provide a method for mixing solid and hazardous wastes in a cement kiln, and propose a technical system that can intelligently identify and accurately mix to achieve the efficient, safe, and resource utilization of solid and hazardous wastes in the cement kiln, while ensuring the stability of the quality of cement products.
[0006] To achieve the above technical purposes and reach the above technical effects, the present invention is realized through the following technical solutions: A method for mixing solid and hazardous wastes in a cement kiln, comprising the following steps; S1: Establish an information database of solid and hazardous wastes, and detect domestic waste, waste tires, waste rubber, biomass fuel, sludge, and hazardous waste, etc. through installed information recognition equipment, identify and classify the wastes through data recognition and classification equipment, crush the classified solid and hazardous wastes through the feeding crusher chamber, and transport them through a mixer and a piston pump; S2: Through the compatibility ratio algorithm, classify the shredded solid hazardous waste according to compatibility, calorific value, morphological properties, and pollution factors. For solid hazardous waste containing alkali metals such as potassium, sodium, and magnesium, and halogen elements such as fluorine and chlorine, match it with hazardous waste that can react with it to form stable compounds to generate a compatibility plan. S3: Establish a real-time monitoring and feedback system. Use real-time detection cameras and gas detection equipment to monitor the burning solid hazardous waste in real time, use network sensor equipment and Internet technology to feedback the burning data, and recalculate through the compatibility ratio algorithm. S4: Feeding position and method. Build a new pre-combustion furnace to conduct secondary combustion and feeding of the classified solid hazardous waste. S5: Build a harmful element control room. Use harmful element detection and analysis equipment to detect and analyze the harmful elements generated by combustion in real time. Use harmful element purification equipment to purify them in real time according to the detection data to meet the emission requirements and then discharge them. S6: Build a visual operation interface. Provide intuitive and easy-to-understand compatibility plan display and adjustment tools for operators through multiple display devices and controllable operation panels.
[0007] Preferably, the data identification and classification device is used to identify different types of solid hazardous waste and integrate and classify them.
[0008] Based on the above technical features, by identifying different types of solid hazardous waste and integrating and classifying them, it is convenient to carry out subsequent processing steps for different types of solid hazardous waste.
[0009] Preferably, the feeding crusher cabin is used to crush the solid hazardous waste into lumps with a size of less than 2 cm and perform drying treatment.
[0010] Based on the above technical features, by crushing and drying the solid hazardous waste through the feeding crusher cabin, its subsequent burning effect is better.
[0011] Preferably, the compatibility ratio algorithm classifies the shredded solid hazardous waste according to compatibility, calorific value, morphological properties, and pollution factors. For solid hazardous waste containing alkali metals and halogen elements, match it with hazardous waste that can react with it to form stable compounds to generate a compatibility plan.
[0012] Based on the above technical features, by burning the waste with similar or related compatibility, calorific value, morphological properties, and pollution factors after compatibility, secondary hazards during combustion can be avoided.
[0013] Preferably, the real-time monitoring and feedback system consists of real-time detection cameras, gas detection equipment, network sensor equipment, and Internet technology.
[0014] Based on the above technical features, the operator can observe the real-time data of waste during combustion through the monitoring and feedback system.
[0015] Preferably, the pre-combustion furnace adopts a stepped design, and the pre-combustion furnace is provided with an SMP solid hazardous waste pipeline feeding port. The body of the pre-combustion furnace is of welded structure, with casting material laid inside, and heat-resistant steel plates laid on the upper layer of the stepped casting material.
[0016] Based on the above technical features, through the design of the pre-combustion furnace, problems such as reducing atmosphere and coating that may be caused by directly feeding waste into the decomposition furnace are avoided.
[0017] Preferably, the harmful element control room is composed of harmful element detection equipment, analysis equipment and purification equipment.
[0018] Based on the above technical features, through the harmful element control room, different harmful elements generated by combustion can be purified and discharged after reaching the standard.
[0019] Preferably, the harmful element detection equipment is used to monitor halogen elements, alkali metals and heavy metals.
[0020] Based on the above technical features, the harmful element detection equipment is used to monitor halogen elements, alkali metals and heavy metal harmful elements generated by combustion in real time.
[0021] Preferably, the harmful element analysis equipment is used to analyze halogen elements, alkali metals and heavy metals, and after selecting the compatibility method, the harmful element purification equipment is used to purify them.
[0022] Based on the above technical features, by analyzing halogen elements, alkali metals and heavy metals, different harmful elements are purified through the element purification equipment.
[0023] Preferably, the visual operation interface is composed of multiple groups of display screen devices and a controllable operation panel.
[0024] Based on the above technical features, by the operator operating multiple groups of display screen devices and the controllable operation panel, it is convenient for the operator to operate.
[0025] In summary, the present invention includes at least one of the following beneficial effects: The present invention provides a method for mixing solid hazardous waste in a cement kiln. By establishing a solid hazardous waste information database, domestic waste, waste tires, waste rubber, biomass fuel, sludge and hazardous waste are detected, and the waste is identified and classified by data identification and classification equipment. The classified solid hazardous waste is crushed by the feeder crushing chamber, and then conveyed by a mixer and a plunger pump, so that the classification effect of the solid hazardous waste information is better.
[0026] The present invention provides a method for mixing solid and hazardous wastes in a cement kiln. Through a mixing ratio algorithm, the crushed solid and hazardous wastes are classified according to compatibility, calorific value, morphological properties, and pollution factors, and then mixed and burned to avoid secondary hazards during combustion. Functions such as data collection, intelligent analysis, real-time monitoring, and feedback are integrated to form a complete intelligent optimization mixing system.
[0027] The present invention provides a method for mixing solid and hazardous wastes in a cement kiln. Real-time monitoring is carried out through real-time detection cameras and gas detection devices, and the combustion data is fed back by using network sensor devices and Internet technology. Then, it is recalculated through the mixing ratio algorithm, and the classified solid and hazardous wastes are secondarily burned and fed into the new pre-built pre-combustion furnace. Through the real-time monitoring and feedback system, according to the changes in the operating state of the cement kiln, the intelligent optimization and dynamic adjustment of the mixing plan are realized.
[0028] The present invention provides a method for mixing solid and hazardous wastes in a cement kiln. Through multiple groups of display devices and a controllable operation panel, an intuitive and easy-to-understand mixing plan display and adjustment tool is provided for operators, a visual operation interface and a decision support system are provided, the operation difficulty is reduced, and the management efficiency is improved. Brief Description of the Drawings
[0029] Figure 1 is a schematic structural diagram of the method for mixing solid and hazardous wastes in a cement kiln according to the present invention; Figure 2 is a schematic structural diagram of the solid and hazardous waste information library according to the present invention; Figure 3 is a schematic structural diagram of the mixing ratio algorithm according to the present invention; Figure 4 is a schematic structural diagram of the real-time monitoring and feedback system according to the present invention; Figure 5 is a schematic structural diagram of the feeding position and method according to the present invention; Figure 6 is a schematic structural diagram of the harmful element control room according to the present invention; Figure 7 is a schematic structural diagram of the visual operation interface according to the present invention; In the drawings, the list of components represented by each reference numeral is as follows: 1 - Solid and hazardous waste information library, 2 - Mixing ratio algorithm, 3 - Real-time monitoring and feedback system, 4 - Feeding position and method, 5 - Harmful element control room, 6 - Visual operation interface. Detailed Description of the Embodiment
[0030] The following further describes the present invention in detail Figure 1-7 with reference to the attached drawings.
[0031] Please refer to Figure 1-7As shown in the figure, an embodiment provided by the present invention: a method for mixing solid hazardous wastes in a cement kiln, comprising the following steps; S1. Establish a solid hazardous waste information database 1, and detect domestic waste, waste tires, waste rubber, biomass fuel, sludge, hazardous waste, etc. through the installed information recognition equipment. Identify and classify the wastes through the data recognition and classification equipment, crush the classified solid hazardous wastes through the feeder crushing chamber, and transport them through the mixer and plunger pump.
[0032] S2. Through the mixing ratio algorithm 2, classify the crushed solid hazardous wastes according to compatibility, calorific value, morphological properties, and pollution factors. For solid hazardous wastes containing alkali metals such as potassium, sodium, magnesium, and halogen elements such as fluorine and chlorine, match them with hazardous wastes that can react with them to form stable compounds to generate a mixing plan.
[0033] The mixing ratio algorithm 2 burns the wastes with similar or related compatibility, calorific value, morphological properties, and pollution factors after mixing.
[0034] S3. Establish a real-time monitoring and feedback system 3, monitor the burning solid hazardous wastes in real time through real-time detection cameras and gas detection equipment, use network sensor equipment and Internet technology to feedback the burning data, and recalculate through the mixing ratio algorithm 2.
[0035] The real-time monitoring and feedback system 3 is composed of real-time detection cameras, gas detection equipment, network sensor equipment, and Internet technology.
[0036] S4. Feeding position and method 4, conduct secondary combustion and feeding of the classified solid hazardous wastes through the newly built pre-combustion furnace.
[0037] The pre-combustion furnace adopts a stepped design, is provided with an SMP solid hazardous waste pipeline feeding port, the main body of the pre-combustion furnace is a welded structure, refractory castables are laid inside, and heat-resistant steel plates are laid on the upper layer of the stepped castables.
[0038] S5. Build a harmful element control room 5, detect and analyze the harmful elements generated by combustion in real time through harmful element detection and analysis equipment, and use harmful element purification equipment to purify them in real time according to the detection data, and then discharge them after meeting the emission effect.
[0039] The harmful element control room 5 is composed of harmful element detection equipment, analysis equipment, and purification equipment. The detection equipment is used to monitor halogen elements, alkali metals, and heavy metals, the analysis equipment is used to analyze halogen elements, alkali metals, and heavy metals, and after selecting the mixing method, purify them through the purification equipment.
[0040] S6. Construct a visual operation interface 6, which provides intuitive and easy-to-understand display and adjustment tools for the compatibility plan for operators through multiple groups of display devices and controllable operation panels.
[0041] The visual operation interface 6 is composed of multiple groups of display devices and controllable operation panels.
[0042] In summary, the specific implementation method is as follows: By establishing a solid and hazardous waste information database 1, detecting domestic waste, waste tires, waste rubber, biomass fuel, sludge, hazardous waste, etc., and identifying and classifying the waste through data recognition and classification equipment, so that the classified solid and hazardous waste can be crushed by the feeder crushing chamber, and transported through a mixer and a plunger pump, making the classification effect of solid and hazardous waste information better. Through the compatibility ratio algorithm, waste with similar or related compatibility, calorific value, morphological properties, and pollution factors is combusted after compatibility, thus avoiding secondary hazards during combustion. Integrate functions such as data acquisition, intelligent analysis, real-time monitoring, and feedback into one, forming a complete intelligent optimization compatibility system. Conduct real-time monitoring through real-time detection cameras and gas detection equipment, use network sensor equipment and Internet technology to feedback the combustion data, and recalculate through the compatibility ratio algorithm. Through the newly built pre-combustion furnace, the classified solid and hazardous waste is put into secondary combustion, and a real-time monitoring and feedback system is adopted to realize the intelligent optimization and dynamic adjustment of the compatibility plan according to the changes in the operating state of the cement kiln. Through multiple groups of display devices and controllable operation panels, intuitive and easy-to-understand display and adjustment tools for the compatibility plan are provided for operators, providing a visual operation interface and a decision support system, reducing the operation difficulty and improving the management efficiency.
[0043] The above are all the preferred embodiments of the present invention. The protection scope of the present invention is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.
Claims
1. A method for mixing cement kiln solid and hazardous waste, characterized in that: The steps include: S1: Establish a solid and hazardous waste information database (1), covering the chemical composition, physical properties, calorific value, and heavy metal content of multi-source solid and hazardous waste; use information identification equipment to detect multi-source solid and hazardous waste such as domestic garbage, waste tires, waste rubber, biomass fuel, sludge, and hazardous waste; use data identification and classification equipment to identify and classify the waste; use the feeder crushing cabin to crush the classified solid and hazardous waste, and transport it through the mixer and plunger pump; S2: Using the matching and proportioning algorithm (2), the crushed solid hazardous waste is classified according to compatibility, calorific value, morphological properties and pollution factors, and solid hazardous waste containing alkali metals and halogen elements is matched with hazardous waste that can react with them to form stable compounds to generate a matching scheme; S3: Establish a real-time monitoring and feedback system (3), monitor the burning solid hazardous waste in real time through real-time detection cameras and gas detection equipment, and use network sensor equipment and Internet technology to feedback the combustion data, and recalculate and optimize the matching scheme through the matching ratio algorithm (2); S4: Addition location and method (4), secondary combustion of classified solid and hazardous wastes through newly built pre-combustion furnaces; S5: Build a harmful element control room (5), use harmful element detection and analysis equipment to detect and analyze harmful elements produced by combustion in real time, use harmful element purification equipment to purify them in real time according to the detection data, and then discharge them after they meet the emission effect; S6: Build a visual operation interface (6) to provide operators with intuitive and easy-to-understand combination scheme display and adjustment tools through multiple display devices and controllable operation panels.
2. A cement kiln solid and hazardous waste compatibility method according to claim 1, characterized in that: The data identification and classification equipment is used to identify different types of solid and hazardous wastes and to integrate and classify them.
3. A cement kiln solid and hazardous waste compatibility method according to claim 1, characterized in that: The feeder crushing cabin is used to crush solid hazardous waste into block objects below 2 cm and perform drying treatment.
4. A cement kiln solid and hazardous waste compatibility method according to claim 1, characterized in that: The compatibility and matching algorithm (2) classifies the crushed solid hazardous waste according to compatibility, calorific value, morphological properties and pollution factors, and matches solid hazardous waste containing alkali metals and halogen elements with hazardous waste that can react with them to form stable compounds to generate a matching scheme.
5. The method for mixing cement kiln solid and hazardous waste according to claim 1, characterized in that: The real-time monitoring and feedback system (3) is composed of a real-time detection camera, a gas detection device, a network sensor device and Internet technology.
6. A cement kiln solid and hazardous waste compatibility method according to claim 1, characterized in that: The pre-combustion furnace adopts a stepped design and is provided with an SMP solid hazardous waste pipeline feeding port. The pre-combustion furnace body is a welded structure with masonry casting materials inside, and a heat-resistant steel plate is laid on the upper layer of the stepped casting materials.
7. The method for mixing cement kiln solid and hazardous waste according to claim 1, characterized in that: The harmful element control room (5) is composed of harmful element detection equipment, analysis equipment and purification equipment.
8. A cement kiln solid and hazardous waste compatibility method according to claim 7, characterized in that: The harmful element detection equipment is used to monitor halogen elements, alkali metals and heavy metals.
9. A cement kiln solid and hazardous waste compatibility method according to claim 7, characterized in that: The harmful element analysis equipment is used to analyze halogen elements, alkali metals and heavy metals, and to purify them using the harmful element purification equipment after selecting a matching method.
10. A cement kiln solid and hazardous waste compatibility method according to claim 1, characterized in that: The visual operation interface (6) is composed of multiple groups of display screen devices and controllable operation panels.