Shield muck drying system

Abstract

The invention relates to the technical field of environmental protection and engineering, in particular to a shield muck drying system which comprises a muck pretreatment module, a muck dehydration module, a material transportation module, a water liquid conveying module and an automatic control module. The muck pretreatment module is used for crushing large muck and preliminarily screening and cleaning the muck; the muck dewatering module is used for finely cleaning, screening and dewatering muck. Through mutual cooperation of the muck pretreatment module, the muck dehydration module, the material transportation module, the water liquid conveying module and the automatic control module, the muck treatment efficiency is improved, the resource recycling rate is increased, and the environment pollution and the construction cost are reduced; the system can adapt to shield engineering projects of different scales and types, and has wide application prospects in underground engineering such as urban subways and tunnels due to the characteristics of high efficiency, environmental protection and intelligence.

Description

Technical Field

[0001] The invention belongs to the field of environmental protection and engineering technology, and specifically relates to a shield slag drying system. Background Art

[0002] my country is paying more and more attention to environmental issues, and the management of various wastes is becoming more and more strict and standardized. The "Technical Specifications for Construction Waste Treatment" issued by the Ministry of Housing and Urban-Rural Development stipulates that the reduction of construction waste should be implemented from the source, and construction debris, engineering mud, construction waste and demolition waste should be used on site first. Most urban subway tunnel construction in China adopts shield excavation. Each kilometer of subway shield construction produces at least 45,000 m3 of debris. Recycling and reusing shield debris can generate huge economic benefits. At present, physical methods such as sedimentation, filtration and centrifugation are mainly used for shield debris slurry treatment. Although these methods can achieve the separation and purification of debris slurry to a certain extent, their processing capacity is limited and it is difficult to meet the needs of efficient construction. Especially in the process of large-scale shield construction, the manual processing speed is slow, resulting in low processing efficiency. In this regard, we propose a shield debris drying system. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a shield slag drying system to solve the above technical problems.

[0004] To achieve the above object, the present invention provides the following technical solutions: a shield slag drying system, the slag drying system comprising: a slag pretreatment module, a slag dehydration module, a material transportation module, a water liquid conveying module and an automatic control module;

[0005] The slag pretreatment module is used to crush large pieces of slag, and to preliminarily screen and clean the slag;

[0006] The slag dewatering module is used to carefully clean, screen and dewater the slag;

[0007] The material transportation module is used to transport materials between various processes;

[0008] The water-liquid transport module is used to transport clean water in the cleaning process and discharge the filtrate and sewage in each process;

[0009] The automation control module is used to control each module and monitor the operating status of each link in real time, and automatically adjust the operation mode according to preset parameters.

[0010] Preferably, the working steps of the shield slag drying system are:

[0011] S1. The unprocessed slag on the material transport module is sent to the crushing unit for crushing, and then enters the first screening unit;

[0012] S2, the first screening unit performs preliminary screening on the slag, and the screened material enters the first sand washing unit;

[0013] S3, the first sand washing unit cleans the material and enters the second sand washing unit;

[0014] S4, the second sand washing unit performs more in-depth cleaning and preliminary dehydration, and enters the dehydration vibration unit;

[0015] S5, the dehydration vibration unit dehydrates the fine sand and enters the second screening unit;

[0016] S6, the second screening unit further dewatering treatment;

[0017] S7. The material transport module transports the dried materials to a storage location for use.

[0018] Preferably, the slag pretreatment module includes a first screening unit, a crushing unit and a first sand washing unit. The first screening unit is used to perform preliminary screening on the incoming slag to remove large impurities and materials that are not suitable for further processing. The crushing unit is used to crush large pieces of slag to ensure that the input material is uniform and loose. The first sand washing unit is used to clean the screened slag to remove mud and impurities on the surface.

[0019] Preferably, the slag dewatering module includes a second sand washing unit, a dewatering vibration unit and a second screening unit. The second sand washing unit is used for more in-depth cleaning and preliminary dewatering of the slag fine sand to improve the grading and cleanliness of the sand and gravel. The dewatering vibration unit is used for using high-frequency dewatering vibration screening to dewater the fine sand. The second screening unit is used for further dewatering the fine sand output by the dewatering vibration unit to reduce the moisture content and improve the quality of the fine sand.

[0020] Preferably, the material transport module adopts a fully enclosed design and is equipped with a dust removal device to reduce dust pollution generated during material transportation. It is also equipped with a weight sensor unit and a flow control unit to achieve precise measurement and automatic regulation of material transportation through the cooperation of the automatic control module.

[0021] Preferably, the automation control module has remote monitoring and diagnosis functions, which can realize remote monitoring of the operating status of the equipment, real-time data viewing and fault diagnosis through a wireless network. When an abnormality is detected or the operating parameters exceed the safe range, the power supply is automatically cut off and an alarm is issued.

[0022] Preferably, the specific steps of remote monitoring and diagnosis of the working status of the automation control module are:

[0023] A1. Collect the status data of the module unit through the sensor unit and transmit it to the automation control module through the wireless network;

[0024] A2. The automation control module analyzes and processes the received data information and monitors the operating status and parameters in real time;

[0025] A3. When the warning conditions are met, the system automatically cuts off the power supply and sounds an alarm, and displays the cause of the fault and the fault module on the display unit to help managers quickly locate the cause of the problem.

[0026] Preferably, in step A1, the sensing unit is installed on the slag pretreatment module, slag dehydration module, material transportation module and water liquid transport module to monitor the working status of the module in real time and collect information including material weight, working speed, working time, water flow size, working screen and unit working temperature.

[0027] Preferably, in step A2, the automation control module receives data from the sensor unit and performs preliminary data verification and cleaning, and compares the received data with the preset working parameter range of each module unit to evaluate the operating status and performance of the module unit.

[0028] Preferably, the warning range in step A3 is set as:

[0029] B1. Normal state, the working state is within the preset parameters, the automation control module automatically records, and the alarm of the display unit is displayed in green;

[0030] B2, Minor abnormality, the working status data is greater than or less than the set parameter by 10%, the automatic control module automatically records and issues a warning sound reminder, and the display unit alarm is displayed in yellow;

[0031] B3, moderate abnormality, the working status data is greater than or less than the set parameter by 15%, the automatic control module automatically records and issues a warning sound reminder, and the display unit alarm is displayed in orange;

[0032] B4. Severe abnormality, the working status data is greater than or less than the set parameter by 15%, the automation control module automatically records, issues a warning sound and automatically cuts off the power supply, and the alarm on the display unit is displayed in red.

[0033] Compared with the prior art, the present invention has the following beneficial effects:

[0034] The present application improves the efficiency of slag treatment and resource recycling rate and reduces environmental pollution and construction costs through the cooperation of slag pretreatment module, slag dehydration module, material transportation module, water-liquid conveying module and automatic control module. The pretreatment and dehydration modules, including crushing, multi-stage screening and deep cleaning and dehydration, greatly improve the processing speed of slag, shorten the project cycle and reduce the construction cost. The system adopts a fully enclosed design and is equipped with a dust removal device, which effectively reduces the dust pollution generated by the transportation and treatment of materials. At the same time, the sewage and filtrate generated in the cleaning process are centrally treated through the water-liquid conveying module to avoid damage to the environment caused by arbitrary discharge. The system is equipped with an automatic control module, which can monitor the operating status of each module in real time and automatically adjust the operation mode according to preset parameters, greatly reducing the complexity and labor intensity of manual operation. The system can adapt to shield engineering projects of different scales and types, and has good adaptability and scalability. Its high efficiency, environmental protection and intelligence make it have broad application prospects in underground projects such as urban subways and tunnels. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is the flow chart of the shield slag drying system steps. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] The present invention provides a technical solution: a shield slag drying system, the slag drying system comprises: a slag pretreatment module, a slag dehydration module, a material transportation module, a water liquid conveying module and an automatic control module;

[0038] The slag pretreatment module is used to crush large pieces of slag, preliminarily screen and clean the slag. Through the built-in crushing device, large pieces of slag are quickly broken into uniform and easy-to-handle small pieces. The vibrating screen is used to effectively separate large impurities and materials that are not suitable for further processing, ensuring the smooth progress of the subsequent processing process;

[0039] The slag dehydration module is used to carefully clean, screen and dehydrate the slag. The module integrates advanced cleaning, screening and dehydration technologies to ensure that the fine sand in the slag can be cleaned and dehydrated to the greatest extent. In this process, the slag first passes through fine cleaning equipment to further remove the mud and fine impurities attached to the surface of the particles. Then, the material enters the high-frequency dehydration vibration screening unit. Through high-frequency vibration and screening, the fine sand is effectively dehydrated, significantly improving its cleanliness and gradation. Finally, after further processing by the secondary screening unit, it is ensured that the dehydrated fine sand reaches the preset moisture content standard, providing high-quality raw materials for subsequent resource utilization;

[0040] The material transportation module is used to transport materials between various process links, ensuring a stable and reliable material supply between various processing links;

[0041] The water-liquid transport module is used to transport clean water in the cleaning process and discharge filtrate and sewage in each process. Through scientific pipe network design and intelligent water circulation system, it realizes the effective utilization of cleaning water and harmless treatment of wastewater, effectively reducing the consumption of water resources and the risk of environmental pollution;

[0042] The automation control module is used to control each module and monitor the operating status of each link in real time, and automatically adjust the operation mode according to preset parameters.

[0043] Furthermore, the working steps of the shield slag drying system are:

[0044] S1. The unprocessed slag on the material transport module is sent to the crushing unit for crushing, and then enters the first screening unit to prepare for further screening and cleaning;

[0045] S2, the first screening unit performs preliminary screening on the slag, this step is to remove large stones and metal parts mixed in the slag and other non-recyclable impurities, and classify the slag according to the particle size. The screened materials, i.e., fine sand and smaller slag particles, enter the first sand washing unit;

[0046] S3. The materials entering the first sand washing unit are initially cleaned under the action of a strong water flow, and impurities such as mud and dust attached to the surface of the particles are effectively removed, which improves the cleanliness of the materials. The cleaned materials enter the second sand washing unit through a conveying device, ready for more in-depth processing;

[0047] S4, the second sand washing unit performs more in-depth cleaning and preliminary dehydration, using more efficient cleaning equipment and processes to ensure that the mud and fine impurities on the surface of the material are completely removed, and the material begins the preliminary dehydration process through physical action to reduce its moisture content. The cleaned and preliminarily dehydrated material is then sent to the dehydration vibration unit;

[0048] S5, the dehydration vibration unit dehydrates the fine sand. The fine sand and other materials are deeply dehydrated under the action of high-frequency vibration. The vibration screening equipment can not only effectively remove the excess water in the material, but also further improve the gradation of the fine sand and enter the second screening unit;

[0049] S6, the second screening unit further dehydrates the water, through fine screening and further dehydration measures,

[0050] The moisture content of fine sand is reduced to a minimum, while its quality is significantly improved;

[0051] S7. The material transportation module transports the dried materials to the storage location. The storage facilities have moisture-proof and dust-proof functions to ensure that the dried materials maintain their good quality during the storage process for use.

[0052] Furthermore, the slag pretreatment module includes a first screening unit, a crushing unit and a first sand washing unit. The first screening unit is used for preliminary screening of the incoming slag. The unit is equipped with a high-efficiency vibrating screen. These devices use the physical properties of the screen to effectively separate large stones, metal waste, concrete blocks and other impurities in the slag that are not suitable for further treatment, ensuring the smooth operation of subsequent processing equipment, avoiding unnecessary energy consumption and wear, and improving the overall processing efficiency. The crushing unit is used to crush large pieces of slag to ensure that the input is uniform and loose. The unit has a built-in high-performance crusher, which is made of advanced crushing technology and sturdy and durable materials and can easily cope with materials of various hardnesses. The first sand washing unit is used to clean the screened slag to remove mud and impurities on the surface. The cleaned slag particles enter the next process through a conveying equipment.

[0053] Furthermore, the slag dewatering module includes a second sand washing unit, a dewatering vibration unit and a second screening unit. The second sand washing unit is used to carry out more in-depth cleaning and preliminary dehydration of the slag fine sand. It is equipped with advanced sand washing equipment and technology. By finely controlling the water flow speed and direction, and utilizing the rotation and stirring action of the sand washing machine, the fine sand is cleaned in an all-round and in-depth manner. In this process, the mud, fine particles and attachments on the surface of the fine sand are effectively stripped off and discharged with the water flow, thereby improving the grading and cleanliness of the sand and gravel. The dewatering vibration unit is used to use High-frequency dehydration vibration screening is used to dehydrate fine sand. Its working principle is to use high-frequency vibration to make the fine sand particles form a thin layer on the screen and produce relative movement, and then use the friction and collision force between the particles to quickly discharge the moisture. The second screening unit is used to further dehydrate the fine sand output by the dehydration vibration unit. The unit is equipped with multiple layers of screens to further remove moisture and fine particles in the fine sand through step-by-step screening. Vacuum-assisted dehydration technology is used in the screening process to enhance the dehydration effect, reduce moisture content, and improve the quality of fine sand.

[0054] Furthermore, the material transportation module adopts a fully enclosed design and is equipped with a dust removal device to reduce dust pollution generated during material transportation, fundamentally solving the problem of material scattering and flying in traditional transportation methods. The entire transportation process is enclosed in a special container or pipeline, effectively isolating the material from the external environment. It is also equipped with a weight sensing unit and a flow control unit. The weight sensing unit monitors the weight changes of materials during transportation in real time through high-precision sensors to ensure that the amount of material transported each time meets the preset standards. The quality control unit automatically adjusts the transportation speed and flow according to production needs and system status to maintain the continuity and stability of material flow, and realizes accurate measurement and automatic adjustment of material transportation through the cooperation of the automation control module.

[0055] Furthermore, the automation control module integrates advanced Internet of Things technology to achieve remote monitoring of various devices in the system. The automation control module has remote monitoring and diagnosis functions. Through the wireless network, it can remotely monitor the operating status of the equipment, view real-time data and diagnose faults. This instant fault warning mechanism greatly shortens the fault response time and reduces the downtime losses caused by faults. When an abnormality is detected or the operating parameters exceed the safe range, the power supply is automatically cut off and an alarm is issued to prevent the situation from further deteriorating, thereby protecting the safety of personnel and equipment.

[0056] Furthermore, the specific steps of remote monitoring and diagnosis of the working status of the automation control module are as follows:

[0057] A1. The status data of the module units are collected through the sensor unit, and the data is safely and quickly transmitted to the automation control module using the wireless network, ensuring the real-time and accuracy of the data, providing a solid foundation for subsequent monitoring and diagnosis;

[0058] A2. The automation control module analyzes and processes the received data information. By comparing it with the preset safety range, the system can accurately determine whether the module unit is in normal working condition and monitor the operating status and parameters in real time;

[0059] A3. When the warning conditions are met, the system automatically cuts off the power supply and sounds an alarm to prevent the fault from expanding and causing further damage. The fault cause and fault module are displayed on the display unit to help managers quickly locate the cause of the problem, which not only improves the fault response speed, but also reduces the impact of the fault on the overall operation of the system.

[0060] Furthermore, in step A1, the sensor units are installed on the slag pretreatment module, slag dehydration module, material transportation module and water-liquid transport module to monitor the working status of the modules in real time, and collect information including material weight to provide a basis for metering control, working speed to evaluate the working efficiency and stability of the equipment, working time to provide data support for equipment maintenance, maintenance and energy consumption analysis, water flow size to ensure the reasonable allocation and effective utilization of water resources, working screen to provide an intuitive basis for remote monitoring and fault diagnosis, and unit working temperature to prevent equipment damage or safety hazards due to overheating.

[0061] Furthermore, in step A2, the automation control module receives data from the sensor unit. In order to ensure the accuracy and reliability of the data, the module will immediately perform a preliminary verification of the data. Through this step, the module can eliminate or mark abnormal data to provide a clean and reliable data source for subsequent analysis. After data verification, the automation control module will perform data cleaning and preprocessing. Data cleaning includes removing duplicate data, filling missing values, smoothing noise data, and converting data types. Preprocessing involves data normalization, standardization or dimensionality reduction to eliminate the impact of different dimensions on data analysis and reduce data dimensions to improve analysis efficiency. The pre-set working parameter range of each module unit is compared with the received data for statistical analysis to evaluate whether the operating status of the module unit is normal and whether the performance is up to standard.

[0062] Furthermore, the warning range in step A3 is set as:

[0063] B1. Normal state, the working state is within the preset parameters, the automation control module automatically records, and the display unit alarm is displayed in green;

[0064] B2, Minor abnormality, the working status data is greater than or less than the set parameter by 10%, the automatic control module automatically records and issues a warning sound reminder, and the display unit alarm is displayed in yellow;

[0065] B3, moderate abnormality, the working status data is greater than or less than the set parameter by 15%, the automatic control module automatically records and issues a warning sound reminder, and the display unit alarm is displayed in orange;

[0066] B4. Severe abnormality, the working status data is greater than or less than the set parameter by 15%, the automation control module automatically records, issues a warning sound and automatically cuts off the power supply, and the alarm on the display unit is displayed in red.

[0067] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0068] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A shield slag drying system, characterized in that: The slag drying system includes: slag pretreatment module, slag dehydration module, material transportation module, water liquid transmission module and automation control module; The slag pretreatment module is used to crush large pieces of slag, and to preliminarily screen and clean the slag; The slag dewatering module is used to carefully clean, screen and dewater the slag; The material transportation module is used to transport materials between various processes; The water-liquid transport module is used to transport clean water in the cleaning process and discharge the filtrate and sewage in each process; The automation control module is used to control each module and monitor the operating status of each link in real time, and automatically adjust the operation mode according to preset parameters.

2. The shield slag drying system according to claim 1 is characterized in that: The working steps of the shield slag drying system are: S1. The unprocessed slag on the material transport module is sent to the crushing unit for crushing, and then enters the first screening unit; S2, the first screening unit performs preliminary screening on the slag, and the screened material enters the first sand washing unit; S3, the first sand washing unit cleans the material and enters the second sand washing unit; S4, the second sand washing unit performs more in-depth cleaning and preliminary dehydration, and enters the dehydration vibration unit; S5, the dehydration vibration unit dehydrates the fine sand and enters the second screening unit; S6, the second screening unit further dewatering treatment; S7. The material transport module transports the dried materials to a storage location for use.

3. The shield slag drying system according to claim 1 is characterized in that: The slag pretreatment module includes a first screening unit, a crushing unit and a first sand washing unit. The first screening unit is used to perform preliminary screening on the incoming slag to remove large impurities and materials that are not suitable for further processing. The crushing unit is used to crush large pieces of slag to ensure that the input material is uniform and loose. The first sand washing unit is used to clean the screened slag to remove mud and impurities on the surface.

4. The shield slag drying system according to claim 1 is characterized in that: The slag dewatering module includes a second sand washing unit, a dewatering vibration unit and a second screening unit. The second sand washing unit is used for more in-depth cleaning and preliminary dewatering of the slag fine sand to improve the grading and cleanliness of the sand and gravel. The dewatering vibration unit is used for using high-frequency dewatering vibration screening to dewater the fine sand. The second screening unit is used for further dewatering the fine sand output by the dewatering vibration unit to reduce the moisture content and improve the quality of the fine sand.

5. The shield slag drying system according to claim 1 is characterized in that: The material transportation module adopts a fully enclosed design and is equipped with a dust removal device to reduce dust pollution generated during material transportation. It is also equipped with a weight sensor unit and a flow control unit. Through the cooperation of the automatic control module, accurate measurement and automatic adjustment of material transportation can be achieved.

6. The shield slag drying system according to claim 1 is characterized in that: The automation control module has remote monitoring and diagnosis functions. Through the wireless network, it can remotely monitor the operating status of the equipment, view real-time data and diagnose faults. When an abnormality is detected or the operating parameters exceed the safe range, the power supply will be automatically cut off and an alarm will be issued.

7. The shield slag drying system according to claim 6, characterized in that: The specific steps for remote monitoring and diagnosis of the working status of the automation control module are as follows: A1. Collect the status data of the module unit through the sensor unit and transmit it to the automation control module through the wireless network; A2. The automation control module analyzes and processes the received data information and monitors the operating status and parameters in real time; A3. When the warning conditions are met, the system automatically cuts off the power supply and sounds an alarm, and displays the cause of the fault and the fault module on the display unit to help managers quickly locate the cause of the problem.

8. The shield slag drying system according to claim 7 is characterized in that: In step A1, the sensor unit is installed on the slag pretreatment module, slag dehydration module, material transportation module and water liquid transportation module to monitor the working status of the module in real time and collect information including material weight, working speed, working time, water flow size, working picture and unit working temperature.

9. The shield slag drying system according to claim 7, characterized in that: In step A2, the automation control module receives data from the sensor unit and performs preliminary data verification and cleaning. It compares the received data with the preset working parameter range of each module unit to evaluate the operating status and performance of the module unit.

10. The shield slag drying system according to claim 1, characterized in that: The warning range in step A3 is set as: B1. Normal state, the working state is within the preset parameters, the automation control module automatically records, and the display unit alarm is displayed in green; B2, Minor abnormality, the working status data is greater than or less than the set parameter by 10%, the automatic control module automatically records and issues a warning sound reminder, and the display unit alarm is displayed in yellow; B3, moderate abnormality, the working status data is greater than or less than the set parameter by 15%, the automatic control module automatically records and issues a warning sound reminder, and the display unit alarm is displayed in orange; B4. Severe abnormality, the working status data is greater than or less than the set parameter by 15%, the automation control module automatically records, issues a warning sound and automatically cuts off the power supply, and the alarm on the display unit is displayed in red.

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