A material residue treatment device and a control method thereof

Abstract

The present application relates to the technical field of material residue treatment equipment, and particularly relates to a material residue treatment device and a control method thereof. Through linkage regulation and control of the discharge temperature and the cooling water spraying amount, the cooling water amount can be dynamically matched according to the real-time temperature of the material residue, so that the precision and energy-saving operation of the cooling process are realized. Through the adoption of the hierarchical screening and multi-stage filtering structure, the hierarchical separation and discharge of coarse and fine material residues can be automatically completed in the conveying process, and efficient filtration is simultaneously performed on the circulating cooling water, so that fine residue particles are prevented from entering the circulating pipeline and the internal part of the water pump, the risk of part wear and blockage can be effectively reduced, and the long-term stable operation of the cooling circulation system is ensured. The present application integrates automatic detection and control logic, has the functions of temperature closed-loop regulation and water level interlocking protection, and can realize the integrated continuous operation of material residue cooling, hierarchical screening and water recycling, and is suitable for the high-temperature material residue treatment requirements of multiple scenes such as metallurgy and chemical industry.

Description

Technical Field

[0001] This invention relates to the field of slag treatment equipment technology, specifically to a slag treatment device and its automated control method that can integrate high-temperature slag cooling, grading and screening and circulating water treatment. Background Technology

[0002] In the production processes of metallurgy, chemical industry and other industries, a large amount of high-temperature slag is generated. This slag needs to be cooled, screened and separated before it can be utilized as a resource. Otherwise, it will not only waste resources, but may also cause safety hazards and environmental pollution due to high temperature and dust.

[0003] However, existing slag treatment equipment still has some shortcomings in practical use: First, most existing cooling systems are designed with a fixed flow rate, which cannot dynamically adjust the cooling water volume according to the real-time temperature of the slag. This results in either insufficient cooling leading to excessive slag temperature or excessive cooling causing water waste, making it difficult to balance cooling efficiency and economy. Secondly, existing slag treatment equipment generally suffers from poor slag separation and easy accumulation of impurities. The slag usually contains particles of different sizes. Traditional treatment equipment lacks an effective graded filtration structure, and fine particles can easily enter the cooling circulation system at the bottom of the equipment, causing blockage and wear of components such as water pumps and pipes. This not only increases the workload and cost of equipment maintenance, but also leads to the failure of the cooling circulation system. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a slag treatment device and its control method, which can realize the linkage regulation of slag temperature and cooling water volume, and simultaneously complete the grading and separation of coarse and fine slag and the filtration of circulating water, thereby improving cooling accuracy, water resource utilization rate and equipment operation reliability.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: I. A slag treatment device The present invention provides a slag treatment device, which mainly includes: a treatment tank 1, a filter plate 2, a drive motor 3, a temperature sensor 4, a controller 5, a main connecting water pipe 6, a water level sensor 7, and an electrically controlled water pump 8. The inner cavity of the processing box 1 is divided into an upper cavity and a lower cavity by a U-shaped filter plate 2 fixedly installed in the middle. An L-shaped feed pipe 101 is fixedly installed on the outer end face of the left side plate of the upper cavity. A first discharge pipe 103 is fixedly installed on the outer end face of the left side plate of the lower cavity. A second discharge pipe 105 is fixedly installed on the outer end face of the right side plate of the upper cavity. A cooling water replenishment pipe 104 is fixedly installed on the outer end face of the front side plate of the upper cavity. The drive motor 3 is fixedly installed on the outer end face of the left side plate of the upper cavity, and the drive shaft 301 of the drive motor 3 passes through the interior of the upper cavity in a direction parallel to the filter plate 2. A spiral blade 3011 is fixedly installed on the outside of the drive shaft 301. The main connecting water pipe 6 is fixedly installed on the top of the treatment tank 1, and the lower end of the main connecting water pipe 6 is connected to multiple branch water pipes 602 fixedly installed on the top of the treatment tank 1. Multiple nozzles 6021 are evenly arranged on the branch water pipes 602, and an electric control valve 601 is installed on the main connecting water pipe 6. The outlet pipe 801 of the electrically controlled water pump 8 is connected to the upper end of the main connecting water pipe 6, and the inlet pipe 802 of the electrically controlled water pump 8 is connected to the bottom of the lower cavity. A temperature sensor 4 is installed on the lower end face of the second discharge pipe 105, and a water level sensor 7 is installed on the side wall of the lower cavity. The drive motor 3, temperature sensor 4, water level sensor 7, electric water pump 8, and electric valve 601 are all electrically connected to the controller 5.

[0006] Preferably, the cross-section of the filter plate 2 and the second discharge pipe 105 is a lower semi-circle, and the lower end face of the filter plate 2 is flush with the lower end face of the second discharge pipe 105.

[0007] Preferably, the filter plate 2 has a plurality of screening holes 201 evenly distributed on its surface. The diameter of the screening holes 201 is determined according to a preset standard for separating material particles. The outer diameter of the blades 3011 of the drive shaft 301 is adapted to the inner diameter of the filter plate 2, so that the outer end face of the blades 3011 contacts the inner wall of the filter plate 2.

[0008] Preferably, an inclined guide plate 102 is installed inside the lower cavity, and the lower end of the inclined surface of the guide plate 102 is flush with the lower end surface of the first discharge pipe 103; a plurality of filter holes 1021 are uniformly opened on the guide plate 102, and the diameter of the filter holes 1021 is smaller than the particle size of the smallest particle in the slag to be treated.

[0009] Preferably, the inner diameter of the outlet pipe 801 of the electrically controlled water pump 8 is adapted to the inner diameter of the main connecting water pipe 6; multiple branch water pipes 602 are arranged in parallel at the top of the treatment tank 1, and multiple nozzles 6021 are installed at equal intervals on the bottom surface of each branch water pipe 602.

[0010] Preferably, the controller 5 is fixedly installed on the outer wall of the processing box 1, and the controller 5 is connected to a display 501.

[0011] II. A control method for a slag treatment device Based on the same inventive concept, the present invention also provides a control method for the slag treatment device described above, comprising the following steps: Step S1, System initialization: Set the target discharge temperature, cooling water level warning value, spray flow rate parameters and temperature to flow rate ratio coefficient, and complete the equipment power-on self-test; Step S2, Start feeding and conveying: The high-temperature slag to be processed enters the filter plate in the upper cavity of the processing box through the feed pipe. Start the drive motor, and drive the spiral blades to rotate at a constant speed through the drive shaft, pushing the slag along the filter plate to be continuously conveyed towards the second discharge pipe. Step S3, Start the circulating spray cooling: Start the electric water pump and open the electric valve so that the cooling water at the bottom of the lower chamber enters the main connecting water pipe through the inlet pipe, the electric water pump, and the outlet pipe in sequence, and then flows to each branch water pipe. It is then sprayed evenly onto the surface of the material slag through the nozzles to cool the high-temperature material slag. Step S4, linkage control of discharge temperature and cooling water spray volume: The temperature sensor collects the real-time temperature of the slag at the second discharge pipe. The controller uses a preset linkage control algorithm based on the real-time temperature of the slag to calculate and determine the target spray flow rate, and synchronously adjusts the opening of the electric control valve and the output power of the electric control water pump to match the actual spray flow rate with the target value, so as to realize the dynamic adjustment of cooling water volume with the temperature of the slag. Step S5, Grading and Screening and Cooling Water Circulation Filtration: During the material conveying process, small particles of material with a particle size smaller than the screening holes pass through the filter plate and fall into the guide plate of the lower chamber. They slide along the inclined guide plate surface to the first discharge pipe and are discharged, so as to realize the grading and discharge of coarse and fine material. At the same time, the sprayed cooling water carries the fine slag down to the guide plate. After the fine slag is intercepted by the filter holes of the guide plate, the cooling water flows back to the bottom of the lower chamber of the processing box for recycling. Step S6, Water level interlock protection: The cooling water level at the bottom of the lower chamber of the processing tank is monitored in real time by a water level sensor. When the cooling water level is lower than the warning value, a water replenishment reminder is triggered, and new cooling water is added through the cooling water replenishment pipe.

[0012] Preferably, in step S4, the preset linkage control algorithm has the following specific formula: Q=Q b +k×(T t -T s ) In the formula, Q is the target spray flow rate; Q b The base spray flow rate is the minimum maintainable flow rate to ensure basic cooling effect; k is the temperature-to-flow ratio coefficient, which is pre-calibrated based on the specific heat capacity of the slag, the processing capacity per unit time, and the heat exchange efficiency of the cooling water; T t T represents the real-time temperature of the slag at the discharge port. s The set target discharge temperature.

[0013] Preferably, in step S4, the target spray flow rate Q is subject to a flow constraint condition: Q min ≤Q≤Q max Q min Q is the preset minimum spray flow rate. max The rated maximum spray flow rate is determined based on the pipeline and water pump. And when T t ≤T s When -△T, Q takes Q. min When T t ≥T s When +△T, Q takes Q. max △T is the preset temperature control dead zone value.

[0014] Preferably, in step S6, the liquid level signal of the lower chamber of the processing tank is transmitted to the controller in real time through the water level sensor. When the cooling water level in the lower chamber is lower than the warning value, the controller issues a water replenishment prompt and limits the upper limit of the output power of the electric water pump to prevent the water pump from running dry and being damaged.

[0015] Compared with the prior art, the present invention has the following main advantages: 1. This invention achieves precise and energy-efficient operation of the cooling process by linking the discharge temperature with the cooling water spray volume and dynamically matching the cooling water volume according to the real-time temperature of the slag. Under the premise of ensuring that the slag is cooled to the standard and the discharge temperature is stable, the cooling water utilization efficiency is improved, water consumption is reduced, and the cooling process is achieved.

[0016] 2. This invention adopts a graded screening and multi-stage filtration structure, which can automatically complete the graded separation and discharge of coarse and fine slag during the conveying process. At the same time, it filters and intercepts slag particles in the circulating cooling water, preventing fine slag particles from entering the circulation pipeline and water pump. This can effectively reduce the risk of component wear and blockage, ensure the long-term stable operation of the cooling circulation system, and extend the service life of the equipment.

[0017] 3. This invention integrates automated detection and control logic, and has the functions of temperature closed-loop regulation and water level interlock protection. It can realize the integrated continuous operation of slag cooling, grading and screening, and water recycling, improve the overall efficiency and operational reliability of slag treatment, reduce the intensity of manual operation and maintenance, and adapt to the high-temperature slag treatment needs of metallurgy, chemical industry and other scenarios. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the external structure of the slag treatment device in an embodiment of the present invention; Figure 2 This is a schematic diagram of the internal structure of the processing box in an embodiment of the present invention; Figure 3 This is a schematic diagram of the main connecting water pipe and the branch water pipe in an embodiment of the present invention; Figure 4 This is a schematic diagram of the filter plate in an embodiment of the present invention; Figure 5 for Figure 4 A magnified schematic diagram of the local structure at point A; Figure 6 This is a schematic diagram of the electrically controlled water pump and its pipeline connection structure in an embodiment of the present invention; Figure 7 This is a schematic diagram of the drive shaft structure in an embodiment of the present invention; Figure 8 This is a side sectional view of the internal structure of the processing box in an embodiment of the present invention; Figure 9 This is an overall flowchart of the control method in an embodiment of the present invention.

[0019] In the diagram: 1. Processing tank; 101. Feed pipe; 102. Guide plate; 1021. Filter hole; 103. First discharge pipe; 104. Cooling water replenishment pipe; 105. Second discharge pipe; 2. Filter plate; 201. Screening hole; 3. Drive motor; 301. Drive shaft; 3011. Blade; 4. Temperature sensor; 5. Controller; 501. Display; 6. Main connecting water pipe; 601. Electrically controlled valve; 602. Branch water pipe; 6021. Nozzle; 7. Water level sensor; 8. Electrically controlled water pump; 801. Water outlet pipe; 802. Water inlet pipe. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention. Furthermore, the technical features involved in the various embodiments of this invention described below can be combined with each other as long as they do not conflict with each other.

[0021] It should be noted that, depending on the implementation needs, the various steps / components described in this application can be broken down into more steps / components, or two or more steps / components or parts of the operation of steps / components can be combined into new steps / components to achieve the purpose of this invention.

[0022] In this invention, unless otherwise expressly specified and limited, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise expressly and specifically limited.

[0023] Example 1: This example provides a slag treatment device, such as... Figures 1-8 As shown, it mainly includes: a processing tank 1, a filter plate 2, a drive motor 3, a temperature sensor 4, a controller 5, a main connecting water pipe 6, a water level sensor 7, and an electrically controlled water pump 8. The processing box 1 is divided into an upper chamber and a lower chamber by a U-shaped filter plate 2 fixedly installed in the middle. An L-shaped feed pipe 101 is fixedly installed on the outer end face of the left side plate of the upper chamber. A first discharge pipe 103 is fixedly installed on the outer end face of the left side plate of the lower chamber. A second discharge pipe 105 is fixedly installed on the outer end face of the right side plate of the upper chamber. A cooling water replenishment pipe 104 is fixedly installed on the outer end face of the front side plate of the upper chamber. The drive motor 3 is fixedly installed on the outer end face of the left side plate of the upper cavity, and the drive shaft 301 of the drive motor 3 passes through the interior of the upper cavity in a direction parallel to the filter plate 2. A spiral blade 3011 is fixedly installed on the outside of the drive shaft 301. The main connecting water pipe 6 is fixedly installed on the top of the treatment tank 1, and the lower end of the main connecting water pipe 6 is connected to multiple branch water pipes 602 fixedly installed on the top of the treatment tank 1. Multiple nozzles 6021 are evenly arranged on the branch water pipes 602, and an electric control valve 601 is installed on the main connecting water pipe 6. The outlet pipe 801 of the electrically controlled water pump 8 is connected to the upper end of the main connecting water pipe 6, and the inlet pipe 802 of the electrically controlled water pump 8 is connected to the bottom of the lower cavity. A temperature sensor 4 is installed on the lower end face of the second discharge pipe 105, and a water level sensor 7 is installed on the side wall of the lower cavity. The drive motor 3, temperature sensor 4, water level sensor 7, electric water pump 8, and electric valve 601 are all electrically connected to the controller 5.

[0024] In this embodiment, the cross-section of the filter plate 2 and the second discharge pipe 105 is a lower semi-circle, and the lower end face of the filter plate 2 is flush with the lower end face of the second discharge pipe 105.

[0025] In this embodiment, the filter plate 2 has a plurality of screening holes 201 uniformly opened on its surface. The diameter of the screening holes 201 is determined according to the preset material particle separation size standard. The outer diameter of the blades 3011 of the drive shaft 301 is adapted to the inner diameter of the filter plate 2, so that the outer end face of the blades 3011 contacts the inner wall of the filter plate 2. In this embodiment, an inclined guide plate 102 is installed inside the lower cavity, and the lower end of the inclined surface of the guide plate 102 is flush with the lower end surface of the first discharge pipe 103; a plurality of filter holes 1021 are uniformly opened on the guide plate 102, and the diameter of the filter holes 1021 is smaller than the particle size of the smallest particle in the slag to be treated.

[0026] In this embodiment, the inner diameter of the outlet pipe 801 of the electrically controlled water pump 8 is adapted to the inner diameter of the main connecting water pipe 6; multiple branch water pipes 602 are arranged parallel to each other on the top of the treatment tank 1, and multiple nozzles 6021 are installed at equal intervals on the bottom surface of each branch water pipe 602. The cooling water sprayed from the nozzles is directly poured onto the slag, which can achieve rapid cooling of the slag.

[0027] In this embodiment, the controller 5 is fixedly installed on the outer wall of the processing box 1, and the controller 5 is connected to a display 501.

[0028] Example 2: The working principle of the slag treatment device provided in this example is as follows: First, the slag to be processed enters the upper cavity of the processing tank 1 through the L-shaped feed pipe 101. The drive motor 3 is started, causing the drive shaft 301 to drive the spiral blades 3011 to rotate, thereby pushing the large slag particles in the upper cavity forward along the filter plate 2 and being discharged from the second discharge pipe 105. During this process, the electric water pump 8 is started to pump the cooling water pre-installed at the bottom of the lower cavity of the processing tank 1 into the main connecting water pipe 6, and spray it out through the nozzles 6021 on the branch water pipe 602, thereby cooling the slag. At the same time, the temperature sensor 4 installed at the second discharge pipe 105 monitors the temperature of the discharged slag in real time, and transmits the slag temperature to the controller 5 for linkage control with the electric valve 601 of the main connecting water pipe 6 and the electric water pump 8, so as to adjust the spray volume of cooling water in real time, thereby greatly improving the cooling efficiency of the slag.

[0029] Furthermore, small particles of material in the upper chamber fall from the screening holes 201 of the filter plate 2 onto the guide plate 102 in the lower chamber. Due to the inclined structure of the guide plate 102, the small particles of material on the surface of the guide plate 102 slide to the first discharge pipe 103 under their own gravity and are discharged, thereby achieving the separation of large and small particles of material (the size standard of the material particles can be adjusted by replacing the filter plates with different screening hole diameters). At the same time, the filter holes 1021 on the guide plate 102 can intercept small particles of material and allow cooling water to pass through, so that the cooling water is collected again at the bottom of the lower chamber and then drawn out by the inlet pipe of the electrically controlled water pump, thereby realizing the recycling of cooling water.

[0030] Furthermore, a water level sensor 7 is installed on the inner wall of the lower chamber of the treatment box 1. The water level sensor 7 monitors whether the cooling water level at the bottom of the lower chamber is below the warning value. When the cooling water level at the bottom of the lower chamber is lower than the warning value, the water level sensor 7 sends a signal to the controller 5. At the same time, the controller 5 sends a signal to the remote terminal to remind the operator to fill the cooling water in time through the cooling water replenishment pipe 104.

[0031] Example 3: Based on the same inventive concept, this example also provides a control method for the slag treatment device described above, such as... Figure 9 As shown, it includes the following steps: Step S1, System Initialization The target discharge temperature T is preset in controller 5. s Cooling water level warning value, spray flow rate upper and lower limits Q min / Q max Basic spray flow rate Q b The temperature and flow rate ratio coefficient k is set, and the drive motor 3, the electric water pump 8, the electric valve 601 and the sensor are powered on for self-test. After confirming that the equipment is normal, it enters the standby state.

[0032] Step S2, start feeding and conveying The high-temperature slag to be processed enters the filter plate 2 in the upper cavity of the processing box 1 through the feed pipe 101. The controller 5 starts the drive motor 3, which drives the spiral blades 3011 to rotate at a constant speed through the drive shaft 301, pushing the slag to be continuously conveyed along the filter plate 2 towards the second discharge pipe 105.

[0033] Step S3, start the circulating spray cooling The controller 5 controls the electric water pump 8 and the electric valve 601 to open. The cooling water at the bottom of the lower chamber enters the main connecting water pipe 6 through the inlet pipe 802, the electric water pump 8, and the outlet pipe 801. It then flows to each branch water pipe 602 and is evenly sprayed onto the surface of the material slag through the nozzle 6021 to cool the high-temperature material slag.

[0034] Step S4: Linked control of discharge temperature and cooling water spray volume Temperature sensor 4 collects the real-time temperature T of the slag at the second discharge pipe 105. t The temperature signal is transmitted to the controller 5. The controller 5 calculates the target spray flow rate Q according to the linkage control formula, and synchronously adjusts the opening degree of the electric control valve 601 and the output power of the electric control water pump 8 so that the actual spray flow rate matches the target value, thereby realizing the dynamic adjustment of cooling water volume with the temperature of slag.

[0035] Step S5: Grading and screening with cooling water circulation filtration During the material conveying process, small particles of material with a particle size smaller than the screening hole 201 pass through the filter plate 2 and fall onto the guide plate 102 of the lower chamber. They slide along the inclined guide surface to the first discharge pipe 103 and are discharged, thus achieving graded discharge of coarse and fine material. The cooling water after spraying carries the fine slag down to the guide plate 102. After the fine slag is intercepted by the filter hole 1021 of the guide plate 102, the cooling water flows back to the bottom of the lower chamber, completing the cycle and reuse.

[0036] Step S6, Water level interlock protection: Real-time monitoring of cooling water level; when the level is lower than the warning value, water replenishment protection is triggered. The water level sensor 7 monitors the cooling water level at the bottom of the lower chamber in real time. When the water level is lower than the preset warning value, it sends a signal to the controller 5. The controller 5 issues a water replenishment prompt through the display 501 and limits the maximum power of the electric water pump 8 to prevent the water pump from running dry and being damaged. The operator adds cooling water through the cooling water replenishment pipe 104 until the water level returns to the normal range.

[0037] The discharge temperature is controlled in conjunction with the cooling water spray volume, as follows: Q=Q b +k×(T t -T s ) In the formula, Q is the target spray flow rate, in m³ / s. 3 / h;Q b The base spray flow rate is the minimum sustained flow rate to ensure the base cooling effect, and its unit is m³ / s. 3 / h; k is the temperature-to-flow ratio coefficient, which is pre-calibrated based on the specific heat capacity of the slag, the throughput per unit time, and the heat exchange efficiency of the cooling water, and is expressed in m³ / h. 3 / (h·℃); T t T represents the real-time temperature of the slag at the discharge port, in °C. s To set the target discharge temperature, the unit is ℃.

[0038] Simultaneously set flow constraints: Q min ≤Q≤Q max Q min Q is the preset minimum spray flow rate. max The rated maximum spray flow rate is determined based on the pipeline and water pump; when T t ≤T s When -△T, Q takes Q. min When T t ≥T s When +△T, Q takes Q. max △T is a preset temperature control dead zone value, used to avoid frequent adjustments of valves and water pumps.

[0039] Furthermore, all parts of this application that are not described in detail are the same as or implemented using existing technology.

[0040] In summary: 1. This invention achieves precise and energy-efficient operation of the cooling process by linking the discharge temperature with the cooling water spray volume and dynamically matching the cooling water volume according to the real-time temperature of the slag. Under the premise of ensuring that the slag is cooled to the standard and the discharge temperature is stable, the cooling water utilization efficiency is improved, water consumption is reduced, and the cooling process is achieved.

[0041] 2. This invention adopts a graded screening and multi-stage filtration structure, which can automatically complete the graded separation and discharge of coarse and fine slag during the conveying process. At the same time, it filters and intercepts slag particles in the circulating cooling water, preventing fine slag particles from entering the circulation pipeline and water pump. This can effectively reduce the risk of component wear and blockage, ensure the long-term stable operation of the cooling circulation system, and extend the service life of the equipment.

[0042] 3. This invention integrates automated detection and control logic, and has the functions of temperature closed-loop regulation and water level interlock protection. It can realize the integrated continuous operation of slag cooling, grading and screening, and water recycling, improve the overall efficiency and operational reliability of slag treatment, reduce the intensity of manual operation and maintenance, and adapt to the high-temperature slag treatment needs of metallurgy, chemical industry and other scenarios.

[0043] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0044] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0045] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A slag treatment device, characterized in that: It includes a processing tank (1), a filter plate (2), a drive motor (3), a temperature sensor (4), a controller (5), a main connecting water pipe (6), a water level sensor (7), and an electric water pump (8); The inner cavity of the processing box (1) is divided into an upper cavity and a lower cavity by a U-shaped filter plate (2) fixedly installed in the middle. An L-shaped feed pipe (101) is fixedly installed on the outer end face of the left side plate of the upper cavity. A first discharge pipe (103) is fixedly installed on the outer end face of the left side plate of the lower cavity. A second discharge pipe (105) is fixedly installed on the outer end face of the right side plate of the upper cavity. A cooling water replenishment pipe (104) is fixedly installed on the outer end face of the front side plate of the upper cavity. The drive motor (3) is fixedly installed on the outer end face of the left side plate of the upper cavity, and the drive shaft (301) of the drive motor (3) passes through the interior of the upper cavity in a direction parallel to the filter plate (2). A spiral blade (3011) is fixedly installed on the outside of the drive shaft (301). The main connecting water pipe (6) is fixedly installed on the top of the treatment tank (1), and the lower end of the main connecting water pipe (6) is connected to multiple branch water pipes (602) fixedly installed on the top of the treatment tank (1). Multiple nozzles (6021) are evenly arranged on the branch water pipes (602), and an electric control valve (601) is installed on the main connecting water pipe (6). The outlet pipe (801) of the electrically controlled water pump (8) is connected to the upper end of the main connecting water pipe (6), and the inlet pipe (802) of the electrically controlled water pump (8) is connected to the bottom of the lower cavity. A temperature sensor (4) is installed on the lower end face of the second discharge pipe (105), and a water level sensor (7) is installed on the side wall of the lower cavity. The drive motor (3), temperature sensor (4), water level sensor (7), electric water pump (8) and electric valve (601) are all electrically connected to the controller (5).

2. The slag treatment device according to claim 1, characterized in that, The cross-sections of the filter plate (2) and the second discharge pipe (105) are both lower semi-circular, and the lower end face of the filter plate (2) is flush with the lower end face of the second discharge pipe (105).

3. The slag treatment device according to claim 2, characterized in that, The filter plate (2) has a plurality of screening holes (201) evenly distributed on its surface. The diameter of the screening holes (201) is determined according to the preset material particle separation size standard. The outer diameter of the blade (3011) of the drive shaft (301) is adapted to the inner diameter of the filter plate (2), so that the outer end face of the blade (3011) contacts the inner wall of the filter plate (2).

4. The slag treatment device according to claim 1, characterized in that, The lower cavity is equipped with an inclined guide plate (102), and the lower end of the inclined surface of the guide plate (102) is flush with the lower end of the first discharge pipe (103); a plurality of filter holes (1021) are evenly opened on the guide plate (102), and the diameter of the filter holes (1021) is smaller than the particle size of the smallest particle in the slag to be treated.

5. The slag treatment device according to claim 1, characterized in that, The inner diameter of the outlet pipe (801) of the electric water pump (8) is compatible with the inner diameter of the main connecting water pipe (6); multiple branch water pipes (602) are arranged in parallel at the top of the treatment tank (1), and multiple nozzles (6021) are installed at equal intervals on the bottom surface of each branch water pipe (602).

6. The slag treatment device according to claim 1, characterized in that, The controller (5) is fixedly installed on the outer wall of the processing box (1), and the controller (5) is connected to a display (501).

7. A control method for a slag treatment apparatus as described in any one of claims 1 to 6, characterized in that, Includes the following steps: S1, System Initialization: Set the target discharge temperature, cooling water level warning value, spray flow parameters and temperature to flow ratio coefficient, and complete the equipment power-on self-test; S2, Start feeding and conveying: The high-temperature slag to be processed enters the filter plate in the upper cavity of the processing box through the feed pipe. Start the drive motor, and drive the spiral blades to rotate at a constant speed through the drive shaft, pushing the slag along the filter plate to be continuously conveyed towards the second discharge pipe. S3, Start the circulating spray cooling: Start the electric water pump and open the electric valve so that the cooling water at the bottom of the lower chamber enters the main connecting water pipe through the inlet pipe, the electric water pump, and the outlet pipe in sequence, and then flows to each branch water pipe. It is then sprayed evenly onto the surface of the material slag through the nozzles to cool the high-temperature material slag. S4, linkage control of discharge temperature and cooling water spray volume: The temperature sensor collects the real-time temperature of the slag at the second discharge pipe. The controller uses a preset linkage control algorithm based on the real-time temperature of the slag to calculate and determine the target spray flow rate, and synchronously adjusts the opening of the electric control valve and the output power of the electric control water pump to make the actual spray flow rate match the target value, so as to realize the dynamic adjustment of cooling water volume with the temperature of the slag. S5, Grading and Screening with Cooling Water Circulation Filtration: During the material conveying process, small particles of material smaller than the screening holes pass through the filter plate and fall onto the guide plate of the lower chamber. They slide along the inclined guide plate surface to the first discharge pipe and are discharged, thus achieving graded discharge of coarse and fine material. At the same time, the sprayed cooling water carries the fine slag down to the guide plate. After the fine slag is intercepted by the filter holes of the guide plate, the cooling water flows back to the bottom of the lower chamber of the processing box for recycling. S6, Water Level Interlock Protection: The water level sensor monitors the cooling water level at the bottom of the lower chamber of the processing tank in real time. When the cooling water level is lower than the warning value, a water replenishment reminder is triggered, and new cooling water is added through the cooling water replenishment pipe.

8. The control method according to claim 7, characterized in that... In step S4, the preset linkage control algorithm has the following specific formula: Q=Q b +k×(T t -T s ) In the formula, Q is the target spray flow rate; Q b The base spray flow rate is the minimum maintainable flow rate to ensure basic cooling effect; k is the temperature-to-flow ratio coefficient, which is pre-calibrated based on the specific heat capacity of the slag, the processing capacity per unit time, and the heat exchange efficiency of the cooling water; T t T represents the real-time temperature of the slag at the discharge port. s The set target discharge temperature.

9. The control method according to claim 7, characterized in that... In step S4, the target spray flow rate Q is subject to a flow constraint condition: Q min ≤Q≤Q max Q min Q is the preset minimum spray flow rate. max The rated maximum spray flow rate is determined based on the pipeline and water pump. And when T t ≤T s When -△T, Q takes Q. min When T t ≥T s When +△T, Q takes Q. max △T is the preset temperature control dead zone value.

10. The control method according to claim 7, characterized in that... In step S6, the liquid level signal of the lower chamber of the treatment tank is transmitted to the controller in real time through the water level sensor. When the cooling water level in the lower chamber is lower than the warning value, the controller issues a water replenishment prompt and limits the upper limit of the output power of the electric water pump to prevent the water pump from running dry and being damaged.

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