A preheater intelligent design method and system based on BIM modeling optimization

Abstract

The application discloses a preheater intelligent design method and system based on BIM modeling optimization, and belongs to the technical field of computer-aided design, and is characterized in that the method comprises the following steps: S1, creating a parameterized family database of a preheater device based on BIM; S2, calculating and obtaining the specifications of a preheater single device and the size of a tower according to basic information of a production line; S3, inputting the size of the tower in a preheater design plug-in to generate a preheater tower; S4, calling preheater series single devices from the family database based on the preheater design plug-in; S5, calculating the separation efficiency of a cyclone cylinder through simulation software, and optimizing the structure of the cyclone cylinder through the feedback separation efficiency; S6, building a preheater, and completing equipment assembly through linkage adjustment of single devices; S7, automatically generating a material pipe based on the preheater design plug-in; and S8, checking a design scheme and outputting engineering drawings.

Description

Technical Field

[0001] This invention belongs to the field of computer-aided design technology, specifically relating to a preheater intelligent design method and system based on BIM modeling optimization. Background Technology

[0002] The preheater is a crucial component of a cement production line. During the design process, the speed and accuracy of the 3D modeling of the preheater directly impact the subsequent construction cycle. Cement clinker production lines typically involve numerous preheater units across multiple floor plans, resulting in a substantial workload for modeling.

[0003] Currently, in BIM-based 3D design, the parametric drawing of individual components such as cyclones and ducts in preheaters often involves setting multiple input parameters. These are drawn one by one in a family environment and then loaded into the project for assembly. Furthermore, the parameters between families are not correlated. For example, the inlet size of a cyclone and the outlet size of a corresponding duct are equal, but these parameters need to be set in separate families, resulting in a lot of repetitive work. In addition, the assembly of components such as cyclones, ducts, and material pipes in the preheater is highly interconnected. During the design process, if one component changes, multiple connected components also need to be changed simultaneously. However, in current 3D design, moving one component of the preheater or adjusting the size of one component does not allow other related components to move or change size simultaneously. This requires manual reconnection or adjustment of the equipment shape, which is time-consuming and inefficient.

[0004] In summary, the problems with existing technologies are:

[0005] (1) When drawing individual equipment families in the preheater using parametric drawing, many parameters need to be input, and the parameters between different types of families are not associated, resulting in a lot of repetitive work.

[0006] (2) During the preheater assembly process, after modifying one piece of equipment, other related equipment need to be readjusted manually, which makes it impossible to quickly obtain the optimal design solution, which takes a long time and results in low design efficiency. Summary of the Invention

[0007] The present invention aims to solve the technical problems existing in the known art: The present invention develops and designs an intelligent design method and system for a preheater based on BIM modeling optimization. By developing a preheater design plug-in, the tower of the preheater can be quickly generated, single equipment can be called, and different forms of material pipes can be automatically generated, realizing digital design and reducing the workload of designers. By associating the parameters between the single equipment of the preheater, the number of parameter inputs in the process of drawing parametric families is reduced, and the rapid construction of a single model is realized, reducing repetitive work. By establishing a database of preheater single equipment families, the rapid call of preheater models for cement production lines of different specifications can be realized. By establishing the connection relationship of connected equipment, the linkage adjustment function is realized, the optimal design scheme is quickly obtained, and the design efficiency is improved.

[0008] The first object of the present invention is to provide an intelligent design method for a preheater based on BIM modeling optimization, including:

[0009] S1: Create a parametric family database of preheater equipment based on BIM;

[0010] S2: Calculate and obtain the specifications of single preheater equipment and the dimensions of the tower according to the basic information of the production line (such as scale, raw fuel composition, weather conditions);

[0011] S3: Input the tower dimensions in the preheater design plug-in to generate the preheater tower;

[0012] S4: Call a series of single preheater equipment from the family database based on the preheater design plug-in;

[0013] S5: Calculate the separation efficiency of the cyclone through simulation software, and optimize the cyclone structure through the feedback separation efficiency;

[0014] S6: Set up the preheater and complete the equipment assembly by linkage adjustment of single equipment;

[0015] S7: Automatically optimize and generate material pipes based on the preheater design plug-in;

[0016] [[ID=2)7]]S8: Check the design scheme and output engineering drawings.

[0017] Preferably, S1 is specifically:

[0018] S1.1: Split the preheater equipment into a decomposition furnace, a smoke chamber, a cyclone, and an air duct;

[0019] S1.2: Create parametric families of the decomposition furnace, the smoke chamber, the cyclone, and the air duct based on the BIM platform. The parametric relationship is established in the family environment or imported through a CSV data file, and the parameter information of the equipment family is modified in the preheater setup environment;

[0020] S1.3: Encode the parameterized families, each code is labeled with family name, specifications and location information; the location information of the smoke chamber, decomposer furnace and air ducts at all levels is the center position of the air inlet, and the location information of each cyclone is the center position of the top of the volute. The location information can be modified in the preheater construction environment.

[0021] S1.4: Establish a family database. The database categorizes cyclones, air ducts, smoke chambers, and decomposition furnaces according to production line specifications and updates the family database in real time.

[0022] Preferably, in step S1.2, the establishment of the cyclone parameter family is based on:

[0023] The total height H, inner cylinder diameter d, eccentricity e1, and eccentricity e2 are directly proportional to the column diameter D, with the following ratios: H / D = 2 - 3.2, d / D = 0.4 - 0.6, e1 / D = 0.06 - 0.15, e2 / D = 0 - 0.3.

[0024] Entrance height a: In the formula, τ = 0.15 - 0.35, α is the horizontal angle at the entrance, and m = 0.3 - 0.6;

[0025] The width b of the top edge of the inlet and the height s of the inner cylinder are directly proportional to the height a of the inlet, with the ratios b / a = 0.3-0.6 and s / a = 0.5-1.5.

[0026] The width of the bottom edge of the entrance, c: c = b - 2 × e1 - e2;

[0027] Height H of the inclined section of the volute 1-2 H 1-2 = (ac) × tanα;

[0028] Height H of the straight section of the volute 1-1 H 1-1 =aH 1-2 ;

[0029] Cone height H3: In the formula, β is the angle between the inclined plane of the cone and the horizontal, and β ≥ 70°; The diameter of the lower part of the cone is determined based on the amount of raw material; if it is a skewed cone, the angle between the axis of the skewed cone and the horizontal should not be less than 60°.

[0030] Column height H2: H2 = Ha - H3;

[0031] Based on the above dimensional relationships, input the diameter D of the cyclone cylinder and the diameter of the lower part of the cone. Obtain all modeling dimensions, and then build a 3D model of the cyclone.

[0032] The parameter family of the decomposer is established based on the following: the size of the decomposer air outlet is equal to that of the bottom cyclone inlet; the diameter d1 of the decomposer air inlet is equal to that of the smoke chamber air outlet; the position of the decomposer constriction center is related to the floor elevation of the preheater tower, and the decomposer constriction center is located 1-3m below the floor; the height of the decomposer upward and downward pipes are open parameters that can be adjusted during the preheater construction process.

[0033] The establishment of the duct parameter family is based on the following: the diameter of the duct inlet is equal to the diameter d of the inner cylinder of the next stage cyclone; the size of the duct outlet is consistent with the size of the inlet of the previous stage cyclone; the material distribution box is 1-2m away from the bottom of the duct and rotates 360° along the duct column.

[0034] Preferably, the preheater design plugin in S3 is embedded into the menu of the BIM software through an API interface. The plugin includes a preheater tower generation module, a family library calling module, and a material pipe generation module.

[0035] The function of the preheater tower generation module is as follows: input the length and width of the tower and the elevation of each floor, and generate the grid and tower; the tower includes floor slabs and columns. The floor slabs are generated at each floor elevation, and their length and width are consistent with the input tower dimensions; the columns are generated at the intersection of the grid.

[0036] The function of calling the family library module is: input the production line scale, select the preheater type and the type of individual equipment, and call the preheater equipment;

[0037] The function of the material tube generation module is to automatically generate a material tube based on the principle of minimum total length by selecting the outlet and inlet in the generated preheater, and then adjust it according to the collision situation after generation.

[0038] Preferably, in S4: the preheater type includes 3-7 stage preheaters, single-row preheaters, and double-row preheaters; after inputting the preheater type, the interface will pop up the codes of multiple cyclones, air ducts, decomposition furnaces, and smoke chambers, and the location information in the codes can be selectively input.

[0039] Preferably, in S5: a virtual model based on production information (raw material composition, fineness) and cyclone structure is established in the simulation CPFD software, and the separation efficiency is calculated; if the cumulative separation efficiency of the cyclone is less than 90%, the total height of the cyclone from the bottom to the top is increased sequentially, H1 = H*δ, where δ is 1.05 to 1.15.

[0040] If the separation efficiency still does not reach 90% after one round of modifications to the total height of the cyclone separator from the bottom to the top, a second round of modifications will be carried out, with a maximum of two rounds of modifications.

[0041] Preferably, in S6:

[0042] The preheater setup logic includes:

[0043] First, determine the positions of the smoke chamber and the bottom cyclone; the air inlet of the decomposition furnace is directly connected to the air outlet of the smoke chamber; the air outlet of the decomposition furnace is tangentially connected to the air inlet of the bottom cyclone; the air inlets of each level of duct are automatically connected to the air outlets of the next level of cyclone, and the air outlets are automatically connected to the air inlets of the previous level of cyclone. The air inlets of the cyclone and the air outlets of the ducts are connected tangentially. The length and direction of the inclined section of the air outlet duct are automatically adjusted according to the position of the air inlet of the cyclone, and the height of the duct is automatically adjusted according to the position of the volutes of the upper and lower cyclone stages.

[0044] Each level of cyclone separator is located on the floor plane, and the bottom of the cyclone separator column is more than 1200mm away from the floor plane; if the cyclone separator cone collides with the air duct, the cone will be adjusted to be a tilted cone, and during the adjustment process, the tilted cone will rotate while the volute will not rotate;

[0045] The distance between any two devices must be greater than 200mm, and the distance between the devices and the edge of the tower must be greater than 350mm;

[0046] The specific process of generating the feed tube is as follows:

[0047] First, select the type of material pipe. Then, select the discharge port and inlet at the bottom of the cyclone in the preheater construction environment. The material pipe is automatically generated according to the principle of minimum total length. The diameter of the material pipe is equal to the diameter of the discharge port at the bottom of the cyclone and the angle between the material pipe and the horizontal is not less than 60°.

[0048] For the feed pipe of the bottom cyclone, the feed inlet is located on the smoke chamber; for the feed pipe of the second to last cyclone, the feed inlet is located on the feeding box of the decomposition furnace, with 2-3 feed inlets. The feed pipe is of the multi-distribution type, and the distribution valve is automatically generated during the automatic generation of the feed pipe; for the feed pipes of other cyclones, the feed inlet is located on the feeding box of the air duct.

[0049] The position of the material distribution box is adjusted 360° along the air duct, and the position of the material distribution box is close to the horizontal distance of the cyclone discharge port.

[0050] The second objective of this invention is to provide a preheater intelligent design system based on BIM modeling optimization, comprising:

[0051] Database creation module: Creates a parametric family database for BIM-based preheater equipment;

[0052] Calculation module: Based on basic production line information (such as scale, raw material composition, and weather conditions), calculates the specifications of individual preheater units and tower dimensions;

[0053] Preheater Tower Generation Module: Input the tower dimensions in the preheater design plugin to generate the preheater tower;

[0054] Calling module: Based on the preheater design plugin, call individual preheater series devices from the family database;

[0055] Simulation and calculation module: Calculates the separation efficiency of the cyclone separator using simulation software to optimize the structure of individual equipment;

[0056] Assembly module: Build the preheater and adjust the individual equipment in conjunction to complete the equipment assembly;

[0057] Material tube generation module: Automatically generates material tubes based on preheater design plug-in;

[0058] Output module: Check the design scheme and output engineering drawings.

[0059] The database creation module is based on the BIM platform and is called by the calling module through coded information. The parameters of the created equipment family are adjusted in the equipment module.

[0060] The calculation module is provided by software that supports the calculation program or is embedded in the preheater design plugin;

[0061] The preheater tower generation module, the calling module, the assembly module, and the material pipe generation module are all used in the preheater construction environment. The modules are interconnected. During the use of the assembly module, more suitable individual equipment is called from the calling module according to the assembly situation. The material pipe generation module adjusts the material pipe scheme in real time according to the results of the assembly module.

[0062] The simulation calculation module can call the database to create device families and can feed back the simulation results to the equipment module to adjust the equipment parameters.

[0063] After the database creation module, calculation module, preheater tower generation module, calling module, assembly module, and material pipe generation module complete their actions, the output module will check for problems in the design scheme and issue reminders. Once the checks are correct, it will automatically generate engineering drawings that conform to the design specifications.

[0064] Preferably, the creation process of the database creation module is as follows:

[0065] S1.1: The preheater equipment is divided into a decomposition furnace, a flue, a cyclone separator, and air ducts;

[0066] S1.2: Based on the BIM platform, create parametric families of decomposition furnace, smoke chamber, cyclone, and air duct. The parametric relationships are established in the family environment or imported through CSV data files. The parameter information of the equipment family is modified in the preheater construction environment.

[0067] S1.3: Encode the parameterized families, each code is labeled with family name, specifications and location information; the location information of the smoke chamber, decomposer furnace and air ducts at all levels is the center position of the air inlet, and the location information of each cyclone is the center position of the top of the volute. The location information can be modified in the preheater construction environment.

[0068] S1.4: Establish a family database. The database categorizes cyclones, air ducts, smoke chambers, and decomposition furnaces according to production line specifications and updates the family database in real time.

[0069] Preferably, in step S1.2, the establishment of the cyclone parameter family is based on:

[0070] The total height H, inner cylinder diameter d, eccentricity e1, and eccentricity e2 are directly proportional to the column diameter D, with the following ratios: H / D = 2 - 3.2, d / D = 0.4 - 0.6, e1 / D = 0.06 - 0.15, e2 / D = 0 - 0.3.

[0071] Entrance height a: In the formula, τ = 0.15 - 0.35, α is the horizontal angle at the entrance, and m = 0.3 - 0.6;

[0072] The width b of the top edge of the inlet and the height s of the inner cylinder are directly proportional to the height a of the inlet, with the ratios b / a = 0.3-0.6 and s / a = 0.5-1.5.

[0073] The width of the bottom edge of the entrance, c: c = b - 2 × e1 - e2;

[0074] Height H of the inclined section of the volute 1-2 H 1-2 = (ac) × tanα;

[0075] Height H of the straight section of the volute 1-1 H 1-1 =aH 1-2 ;

[0076] Cone height H3: In the formula, β is the angle between the inclined plane of the cone and the horizontal, and β ≥ 70°; The diameter of the lower part of the cone is determined based on the amount of raw material; if it is a skewed cone, the angle between the axis of the skewed cone and the horizontal should not be less than 60°.

[0077] Column height H2: H2 = Ha - H3;

[0078] Based on the above dimensional relationships, input the diameter D of the cyclone cylinder and the diameter of the lower part of the cone. Obtain all modeling dimensions, and then build a 3D model of the cyclone.

[0079] The parameter family of the decomposer is established based on the following: the size of the decomposer air outlet is equal to that of the bottom cyclone inlet; the diameter d1 of the decomposer air inlet is equal to that of the smoke chamber air outlet; the position of the decomposer constriction center is related to the floor elevation of the preheater tower, and the decomposer constriction center is located 1-3m below the floor; the height of the decomposer upward and downward pipes are open parameters that can be adjusted during the preheater construction process.

[0080] The establishment of the duct parameter family is based on the following: the diameter of the duct inlet is equal to the diameter d of the inner cylinder of the next stage cyclone; the size of the duct outlet is consistent with the size of the inlet of the previous stage cyclone; the material distribution box is 1-2m away from the bottom of the duct and rotates 360° along the duct column.

[0081] Preferably, the preheater design plugin in the preheater tower generation module is embedded into the menu of the BIM software through an API interface. The plugin includes a preheater tower generation module, a family library calling module, and a material pipe generation module.

[0082] The function of the preheater tower generation module is as follows: input the length and width of the tower and the elevation of each floor, and generate the grid and tower; the tower includes floor slabs and columns. The floor slabs are generated at each floor elevation, and their length and width are consistent with the input tower dimensions; the columns are generated at the intersection of the grid.

[0083] The function of calling the family library module is: input the production line scale, select the preheater type and the type of individual equipment, and call the preheater equipment;

[0084] The function of the material tube generation module is to automatically generate a material tube based on the principle of minimum total length by selecting the outlet and inlet in the generated preheater, and then adjust it according to the collision situation after generation.

[0085] Preferably, in the assembly module:

[0086] The preheater setup logic includes:

[0087] The smoke chamber is placed on the 1FL plane first; the bottom cyclone is placed on the 3FL plane; the air inlet of the decomposition furnace is directly connected to the air outlet of the smoke chamber; the air outlet of the decomposition furnace is tangentially connected to the air inlet of the bottom cyclone; the air inlets of each level of air duct are automatically connected to the air outlets of the next level of cyclone, and the air outlets are automatically connected to the air inlets of the previous level of cyclone. The air inlets of the cyclone and the air outlets of the air ducts are connected tangentially. The length and direction of the inclined section of the air duct outlet are automatically adjusted according to the position of the air inlet of the cyclone, and the height of the air duct is automatically adjusted according to the position of the volutes of the upper and lower cyclone.

[0088] Each level of cyclone separator is located on the floor plane, and the bottom of the cyclone separator column is more than 1200mm away from the floor plane; if the cyclone separator cone collides with the air duct, the cone will be adjusted to be a tilted cone, and during the adjustment process, the tilted cone will rotate while the volute will not rotate;

[0089] The distance between any two devices must be greater than 200mm, and the distance between the devices and the edge of the tower must be greater than 350mm;

[0090] The specific process of generating the feed tube is as follows:

[0091] First, select the type of material pipe. Then, select the discharge port and inlet at the bottom of the cyclone in the preheater construction environment. The material pipe is automatically generated according to the principle of minimum total length. The diameter of the material pipe is equal to the diameter of the discharge port at the bottom of the cyclone and the angle between the material pipe and the horizontal is not less than 60°.

[0092] For the feed pipe of the bottom cyclone, the feed inlet is located on the smoke chamber; for the feed pipe of the second to last cyclone, the feed inlet is located on the feeding box of the decomposition furnace, with 2-3 feed inlets. The feed pipe is of the multi-distribution type, and the distribution valve is automatically generated during the automatic generation of the feed pipe; for the feed pipes of other cyclones, the feed inlet is located on the feeding box of the air duct.

[0093] The position of the material distribution box is adjusted 360° along the air duct, and the position of the material distribution box is close to the horizontal distance of the cyclone discharge port.

[0094] The advantages and positive effects of this invention are:

[0095] 1. This invention reduces the number of parameter inputs during the parametric family drawing process by associating parameters between individual preheater units, enabling rapid construction of individual unit models and reducing repetitive work. Furthermore, by establishing a preheater unit family database, it allows for the rapid retrieval of preheater models for cement production lines of different specifications.

[0096] 2. This invention establishes a connection relationship between interconnected devices to achieve a linkage adjustment function. During the three-dimensional design process of the preheater, after adjusting one individual device, the related devices can be automatically adjusted, quickly obtaining the optimal design scheme and achieving high design efficiency.

[0097] 3. The preheater design plugin of the present invention includes a preheater tower generation module, a family library calling module, and a material pipe generation module, which can quickly generate preheater towers, call individual equipment, and automatically generate material pipes of different forms, realize digital design, and reduce the workload of designers. Attached Figure Description

[0098] Figure 1 This is a flowchart illustrating the implementation of the present invention;

[0099] Figure 2 This is a model diagram of a preheater according to a preferred embodiment of the present invention;

[0100] Figure 3 This is a top view of the preheater according to a preferred embodiment of the present invention;

[0101] Figure 4 This is a parametric front view of a cyclone tube according to a preferred embodiment of the present invention.

[0102] Figure 5 This is a parametric top view of the cyclone tube according to a preferred embodiment of the present invention;

[0103] Figure 6 This is a schematic diagram of the parameterization of the ductwork according to a preferred embodiment of the present invention;

[0104] Figure 7 This is the intended construction plan of the preheater in a preferred embodiment of the present invention.

[0105] The components are as follows: 1. Smoke chamber; 2. Decomposition furnace, 201. Upward pipe, 202. Downward pipe; 3. C6 cyclone; 4. C5 cyclone, 401. Volute, 402. Column, 403. Cone, 404. Inner cylinder, 405. Inner cylinder outlet, 406. Inlet, 407. Discharge port; 5. C4 cyclone; 6. C6-C5 duct, 601. Variable diameter section, 602. Column section, 603. Inclined section, 604. Spreading box, 605. Air outlet, 606. Air inlet; 7. C5-C4 duct; 8. C4 discharge pipe; 9. C5 discharge pipe, 901. Distributor valve; 10. C6 discharge pipe; 11. Column. Detailed Implementation

[0106] To make the above-mentioned objectives, control system design, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0107] This invention uses BIM-based modeling of a six-stage preheater as an example.

[0108] The technical solution of this invention is as follows:

[0109] like Figures 1 to 7 As shown, a preheater intelligent design method based on BIM modeling optimization includes the following steps:

[0110] S1: Create a parametric family database for preheater equipment based on the Revit platform.

[0111] S1.1: The preheater equipment is divided into smoke chamber 1, decomposition furnace 2, cyclone separator, and air duct;

[0112] S1.2: Create parametric families of smoke chamber 1, decomposition furnace 2, cyclone duct, and air duct based on the Revit platform. The parametric relationships are established in the family environment or imported through a CSV data file. The parameter information of the equipment family can be modified in the Revit working environment.

[0113] To more clearly describe the parametric relationships of the cyclone, we will use C5 cyclone 4 (see...) Figure 4 , Figure 5As an example: C5 cyclone 4 includes a volute 401, a column 402, a cone 403, and an inner cylinder 404. The spiral lines of the volute 401 are tangent to each other in sequence. The eccentricity of the arc segment R2 is e1, and the eccentricity of the arc segment R3 is e2. When e2 = 0, the volute is a double-centered large volute. When e2 > 0, the volute is a triple-centered large volute. The volute 401 can be either a double-centered large volute or a triple-centered large volute. The cone 403 can be either a straight cone or a skewed cone. The inlet 406 (cyclone air inlet) and the inner cylinder outlet 405 (air outlet) are located on the volute 401, and the discharge port 407 is located below the cone 403.

[0114] The establishment of the cyclone duct parameter family is based on:

[0115] The total height H, the inner cylinder diameter d (404 stainless steel), the eccentricity e1, and the eccentricity e2 are directly proportional to the column diameter D, with the following ratios: H / D = 2-3.2, d / D = 0.4-0.6, e1 / D = 0.06-0.15, and e2 / D = 0-0.3.

[0116] Entrance 406 height a: In the formula, τ = 0.15-0.35, α is the horizontal angle of the entrance, which is generally taken as 50°, and m = 0.3-0.6;

[0117] The width b of the top edge of the inlet 406 and the height s of the inner cylinder 404 are directly proportional to the height a of the inlet 406, with the ratios b / a = 0.3-0.6 and s / a = 0.5-1.5.

[0118] The width of the bottom edge of entrance 406 is c: c = b - 2 × e1 - e2;

[0119] Height H of the inclined section of the volute 401 1-2 H 1-2 = (ac)×tanα

[0120] Height H of the straight section of the volute 401 1-1 H 1-1 =aH 1-2 ;

[0121] Cone 403 height H3: In the formula, β is the angle between the inclined plane of the cone and the horizontal, which is generally taken as ≥70°; The diameter of the lower part of the cone is determined based on the amount of raw material; if it is a skewed cone (such as...). Figure 6 The angle between the axis of the skewed cone and the horizontal is not less than 60° (as shown in the diagrams for C6 cyclone 3 and C4 cyclone 5).

[0122] Height H2 of column 402: H2 = Ha - H3;

[0123] Based on the above dimensional relationships, input the diameter D of the cyclone cylinder and the diameter of the lower part of the cone in the family creation environment. With all modeling dimensions available, a 3D model of the cyclone can be quickly created.

[0124] The decomposition furnace 2 includes a cone, an upward pipe 201, a downward pipe 202, a connecting pipe, and a constriction. The air inlet is located below the cone and is connected to the air outlet of the smoke chamber 1. The air outlet is located on the downward pipe 202 and is connected to the air inlet of the bottom cyclone separator C6. The upward pipe 201 has multiple material distribution boxes 604. The upward and downward pipes are connected by a connecting pipe, which is a gooseneck pipe or a slanted section interface.

[0125] The parameter family of decomposer 2 is established based on the following: the size of the decomposer outlet is equal to that of the C6 cyclone 3 inlet; the diameter d1 of the decomposer 2 inlet is equal to that of the smoke chamber 1 outlet. The position of the decomposer constriction center is related to the floor elevation of the preheater tower, and the decomposer constriction center is located 1-3m below the floor level.

[0126] The heights of the ascending pipe 201 and descending pipe 202 of the decomposition furnace are open parameters and can be adjusted during the preheater construction process in the family creation environment. The total volume of the decomposition furnace must meet the requirement that the flue gas residence time is >6s.

[0127] By inputting the upward pipe D1, downward pipe D2, and constriction diameter d2 of the decomposition furnace, the decomposition furnace model can be obtained.

[0128] To more clearly describe the parametric relationships of the ductwork, C6-C5 ductwork 6 (see...) Figure 6 As an example: Duct 6 includes a reducing section 601, a column 602, and an inclined section 603. The air inlet 606 is located below the reducing section 601 and is connected to the air outlet of the next-stage cyclone separator. The air outlet 605 is located on the inclined section 603 and is connected to the air inlet of the previous-stage cyclone separator. The material distribution box 604 is located on the column 602.

[0129] The establishment of the duct parameter family is based on the following: the diameter of the duct inlet 606 is equal to the diameter d of the inner cylinder of the next stage cyclone; the size of the duct outlet 605 is consistent with the size of the inlet of the previous stage cyclone; the material distribution box 604 is 1 to 2 m away from the bottom of the duct at a distance h2, and can rotate 360° along the duct column.

[0130] The duct height h is the height difference between the upper and lower cyclone volute positions, and the outlet duct inclined section length l is the horizontal vertical length from the center of the lower cyclone volute to the outlet of the upper cyclone.

[0131] The duct height h and the length of the inclined section of the outlet duct l are open parameters that can be automatically adjusted according to the position of the cyclone during the preheater construction process.

[0132] S1.3: Parameterized families are automatically coded and bound to corresponding parameters. Each code is labeled with the family name, specifications, and location information. The location information for the smoke chamber, decomposer, and duct is the center position of the air inlet, and the location information for the cyclone separator is the center position of the top of the volute. The location information can be modified in the Revit working environment.

[0133] S1.4: Establish a family database. The database can be categorized according to production line specifications for smoke chamber 1, decomposition furnace 2, cyclone separator, and air duct, facilitating user searching and retrieval. Users can also update the family database in real time.

[0134] S2: Calculate the specifications of the preheater unit and the tower size based on the production line scale, raw material composition, weather conditions and other conditions.

[0135] The specifications of a single piece of equipment refer to its diameter. The tower dimensions include length, width, height, and the elevation of each floor.

[0136] S3: Enter the tower dimensions in the preheater design plugin to generate the preheater tower;

[0137] The preheater design plugin is embedded into the Revit menu via an API interface. The plugin includes a preheater tower generation module. The main functions of this module are: the user inputs the tower's length A, width B, and floor elevations; the module generates a grid and the tower itself. There are four grids in the length direction (A, B, C, D) and three grids in the width direction (1, 2, 3). The intersection of grid A and grid 1 is at point (0,0,0). The tower includes floor slabs and columns 11. Floor slabs are generated at each floor elevation, with length and width matching the input tower dimensions. Columns 11 are generated at the grid intersections.

[0138] S4: Based on the preheater design plugin, call the preheater series individual equipment from the family library;

[0139] The preheater design plugin also includes a family library module. The main function of the family library module is to allow users to input the production line scale, select the preheater type and the type of individual equipment, and then call the preheater equipment.

[0140] Preheater types include 3-7 stage preheaters, single-row preheaters, and double-row preheaters. After entering the preheater type, the interface will display the corresponding codes for multiple cyclones, ducts, decomposition furnaces, and smoke chambers. The location information in the codes can be entered by the user; the user needs to enter the location information for smoke chamber 1 and the bottom cyclone (C6 cyclone 3). The user can select one or more devices to be imported within the interface.

[0141] In this embodiment, the preheater is a 6-stage double-row preheater. The first-stage cyclone separator consists of four individual cyclone separators, while the other stages each consist of two individual cyclone separators. The cyclone separator is a three-core large volute, and the ascending and descending pipes of the decomposition furnace are connected by an inclined section.

[0142] S5: Calculate the cyclone separation efficiency using simulation software, and optimize the cyclone structure based on the feedback separation efficiency;

[0143] CPFD software is preferred for simulation calculations. A virtual model based on production information (raw material composition, fineness) and the cyclone structure is established in CPFD software; the cyclone structure can be retrieved from a parametric family database. The separation efficiency of the cyclone can be obtained through simulation calculations. If the cumulative separation efficiency of the cyclone is less than 90%, the height of the bottom cyclone (C6 cyclone 3) is increased first, and the calculation is repeated; if the efficiency is still less than 90%, the height of the next layer cyclone (C5 cyclone 4) is increased, and the calculation is repeated; and so on. When the cumulative separation efficiency is less than 90%, the total height H1 = H*δ from the bottom cyclone (C6 cyclone 3) to the top cyclone is increased sequentially, where δ is between 1.05 and 1.15. If the separation efficiency still does not reach 90% after one round of modifications to the total height of the cyclone from the bottom to the top, a second round of modifications is performed, with a maximum of two rounds of modifications.

[0144] S6: Install the preheater and adjust the individual equipment in conjunction to complete the equipment assembly;

[0145] The logic for building the preheater is as follows:

[0146] First, determine the positions of the smoke chamber and the bottom cyclone separator: Smoke chamber 1 is located at the center of axis B and C, and is placed on plane 1FL; cyclone separator 3 (C6) is placed on plane 3FL. The air inlet of decomposition furnace 2 is directly connected to the air outlet of smoke chamber 1; the air outlet of decomposition furnace 2 is tangentially connected to the air inlet of cyclone separator 3 (C6). The air inlet of duct C6-C5 (C6-C5) is automatically connected to the air outlet of the next-level cyclone separator 3 (C6), and its air outlet is connected to the previous-level cyclone separator 4 (C5). The air inlet of cyclone separator 4 (C5) and the air outlet of duct C6-C5 (C6-C5) are tangentially connected, and the length l of the C6-C5 air duct outlet is automatically adjusted according to the position of the air inlet of cyclone separator 4 (C5). The air inlet of duct C5-C4 (C5-C4) is automatically connected to the air outlet of the next-level cyclone separator 4 (C5), and its air outlet is connected to the previous-level cyclone separator 5 (C4). The air inlet of cyclone separator 5 (C4) and the air outlet of duct C5-C4 (C5-C4) are tangentially connected. Similarly, the air inlets of each duct are automatically connected to the air outlets of the next cyclone separator, and the air outlets are automatically connected to the air inlets of the previous cyclone separator. The air inlets of the cyclone separator and the air outlets of the ducts are connected tangentially. The length of the air outlet duct is automatically adjusted according to the position of the air inlet of the cyclone separator, and the height of the duct is automatically adjusted according to the position of the volutes of the upper and lower cyclone separators.

[0147] Each cyclone separator is located on the floor plane, and the distance h1 between the bottom of the cyclone separator column and the floor plane is greater than 1200mm. If the cyclone separator cone collides with the duct, the cone will be adjusted to be a tilted cone. During the adjustment process, the tilted cone can rotate while the volute does not rotate. In the figure, the cones of cyclone separator 5 (C4) and cyclone separator 3 (C6) are tilted cones.

[0148] The distance between any two devices must be greater than 200mm, and the distance between the device and the edge of the tower must be greater than 350mm.

[0149] S7: Automatically optimizes and generates material pipes based on preheater design plug-in.

[0150] The preheater design plugin also includes a material tube generation module. The main function of the material tube generation module is to allow users to select the outlet and inlet in the generated preheater and automatically generate the material tube according to the principle of minimum total length. After generation, the material tube can be adjusted according to the collision situation.

[0151] The specific process is as follows: First, select the type of material tube in the plugin, and then select the lower end outlet and inlet of the cyclone in the Revit working environment respectively. The material tube is automatically generated. The diameter of the material tube is equal to the diameter of the lower end outlet of the cyclone and the angle between the material tube and the horizontal is not less than 60°.

[0152] For the feed pipe of the bottom cyclone (C6 feed pipe 10), the feed inlet is located on the smoke chamber 1; for the feed pipe of the second to last cyclone (C5 feed pipe 9), the feed inlet is located on the feeding box of the decomposition furnace, with 3 feed inlets. The feed pipe is of the multi-distribution type, and the distribution valve 901 will be automatically generated at the appropriate position during the automatic generation of the feed pipe; for the feed pipes of other cyclones, such as C4 feed pipe 8, the feed inlet is located on the feeding box of C5-C4 air duct 7.

[0153] The material dispensing box can be adjusted 360° along the air duct, and the position of the material dispensing box should be as close as possible to the horizontal distance of the cyclone outlet.

[0154] S8: Check the design scheme and output engineering drawings.

[0155] The engineering drawings include a cross-sectional view of the preheater and floor plans for each floor. The layout and annotation format of the drawings have been pre-set, and the required engineering drawings can be automatically generated after the preheater is built.

[0156] A preheater intelligent design system based on BIM modeling optimization includes:

[0157] Database creation module: Creates a parametric family database for BIM-based preheater equipment; the specific creation process is as follows:

[0158] S1.1: The preheater equipment is divided into a decomposition furnace, a flue, a cyclone separator, and air ducts;

[0159] S1.2: Based on the BIM platform, create parametric families of decomposition furnace, smoke chamber, cyclone, and air duct. The parametric relationships are established in the family environment or imported through CSV data files. The parameter information of the equipment family can be modified in the preheater construction environment.

[0160] S1.3: Parameterized families are automatically coded, with each code labeled with the family name, specifications, and location information. The location information for the smoke chamber, decomposer, and various levels of air ducts is the center position of the air inlet, and the location information for each level of cyclone separator is the center position of the top of the volute. The location information can be modified in the preheater setup environment.

[0161] S1.4: Establish a family database. The database can be categorized according to production line specifications for cyclones, ducts, smoke chambers, and decomposition furnaces, facilitating user searching and retrieval. Users can also update the family database in real time.

[0162] S2: Calculate the specifications of the preheater unit and the tower size based on the production line scale, raw material composition, weather conditions, and other conditions.

[0163] Calculation module: Based on the production line scale, raw material composition, and weather conditions, calculates the specifications of the preheater unit and the tower dimensions;

[0164] Preheater Tower Generation Module: Input the tower dimensions in the preheater design plugin to generate the preheater tower;

[0165] Calling module: Based on the preheater design plugin, call individual preheater series devices from the family database;

[0166] Simulation and calculation module: Calculates the separation efficiency of the cyclone separator using simulation software to optimize the structure of individual equipment;

[0167] Assembly module: Build the preheater and adjust the individual equipment in conjunction to complete the equipment assembly;

[0168] Material tube generation module: Automatically generates material tubes based on preheater design plug-in;

[0169] Output module: Check the design scheme and output engineering drawings.

[0170] The establishment of the cyclone parameter family in step S1.2 is based on:

[0171] Figure 4 , Figure 5 This is a parameterized schematic diagram of the C5 cyclone 4.

[0172] The total height H, the inner cylinder diameter d (404 stainless steel), the eccentricity e1, and the eccentricity e2 are directly proportional to the column diameter D, with the following ratios: H / D = 2-3.2, d / D = 0.4-0.6, e1 / D = 0.06-0.15, and e2 / D = 0-0.3.

[0173] Entrance 406 height a: In the formula, τ = 0.15-0.35, α is the horizontal angle of the entrance, which is generally taken as 50°, and m = 0.3-0.6;

[0174] The width b of the top edge of the inlet 406 and the height s of the inner cylinder 404 are directly proportional to the height a of the inlet 406, with the ratios b / a = 0.3-0.6 and s / a = 0.5-1.5.

[0175] The width of the bottom edge of entrance 406 is c: c = b - 2 × e1 - e2;

[0176] Height H of the inclined section of the volute 401 1-2 H 1-2 = (ac)×tanα

[0177] Height H of the straight section of the volute 401 1-1 H 1-1 =aH 1-2 ;

[0178] Cone 403 height H3: In the formula, β is the angle between the inclined plane of the cone and the horizontal, which is generally taken as ≥70°; The diameter of the lower part of the cone is determined based on the amount of raw material; if it is a skewed cone (such as...). Figure 6 The angle between the axis of the skewed cone and the horizontal is not less than 60° (as shown in the diagrams for C6 cyclone 3 and C4 cyclone 5).

[0179] Height H2 of column 402: H2 = Ha - H3;

[0180] Based on the above dimensional relationships, input the diameter D of the cyclone cylinder and the diameter of the lower part of the cone. With all modeling dimensions available, you can quickly build a 3D model of a cyclone.

[0181] Based on the above dimensional relationships, input the diameter D of the cyclone cylinder and the diameter of the lower part of the cone. With all modeling dimensions available, you can quickly build a 3D model of a cyclone.

[0182] The establishment of the decomposer parameter family in step S1.2 is based on the following: the size of the decomposer outlet is equal to that of the bottom cyclone inlet; the diameter d1 of the decomposer inlet is equal to that of the flue gas outlet. The position of the decomposer constriction center is related to the floor elevation of the preheater tower, and the decomposer constriction center is located 1-3m below the floor.

[0183] The heights of the ascending and descending pipes of the decomposition furnace are open parameters and can be adjusted during the construction of the preheater.

[0184] The basis for establishing the duct parameter family in step S1.2 is: Figure 6 This is a parametric schematic diagram of duct C6-C5. The diameter of the duct inlet 606 is equal to the inner diameter d of the next stage cyclone 3 (C6); the size of the duct outlet 605 is the same as the size of the inlet (i.e., cyclone inlet) of the previous stage cyclone 4 (C5); the material distribution box 604 is 1-2m from the bottom of the duct and can rotate 360° along the duct column.

[0185] The duct height h and the length l of the inclined section 603 of the outlet duct are open parameters that can be automatically adjusted according to the position of the cyclone during the preheater construction process.

[0186] In step S2, the preheater design plugin is embedded into the BIM software's menu via an API interface. This plugin includes a preheater tower generation module, a family library calling module, and a material pipe generation module.

[0187] The main functions of the preheater tower generation module are: the user inputs the length, width and elevation of each floor of the tower, and generates the grid and tower; the tower includes floor slabs and columns, the floor slabs are generated at each floor elevation, and the length and width are consistent with the input tower dimensions; the columns are generated at the intersection of the grid.

[0188] The main function of the family library module is to allow users to input the production line scale, select the preheater type and the type of individual equipment, and then call up the preheater equipment.

[0189] The main function of the material tube generation module is: in the generated preheater, the user selects the outlet and inlet respectively, and the material tube is automatically generated according to the principle of minimum total length. After generation, it can be adjusted according to the collision situation.

[0190] In the module, preheater types include 3-7 stage preheaters, single-row preheaters, and double-row preheaters. After inputting the preheater type, the interface will display the corresponding codes for multiple cyclones, ducts, decomposition furnaces, and smoke chambers. The location information in the codes can be entered by the user; however, the user must enter the location information for the smoke chamber and the bottom cyclone. The location information for other equipment can be left blank. The user can select one or more equipment to be imported within the interface.

[0191] The logic for setting up the preheater in the calling module is mainly as follows:

[0192] The smoke chamber is placed on the 1FL plane first; the bottom cyclone separator is placed on the 3FL plane. The air inlet of the decomposition furnace is directly connected to the air outlet of the smoke chamber; the air outlet of the decomposition furnace is tangentially connected to the air inlet of the bottom cyclone separator. The air inlets of each duct are automatically connected to the air outlets of the next level cyclone separator, and the air outlets are automatically connected to the air inlets of the previous level cyclone separator. The air inlets of the cyclone separators and the air outlets of the ducts are connected tangentially. The length and direction of the inclined section of the air outlet duct are automatically adjusted according to the position of the air inlet of the cyclone separator, and the height of the air duct is automatically adjusted according to the position of the volutes of the upper and lower cyclone separators.

[0193] Each level of cyclone is located on the floor plane, and the bottom of the cyclone column is more than 1200mm away from the floor plane. If the cyclone cone collides with the air duct, the cone will be adjusted to be a tilted cone. During the adjustment process, the tilted cone can rotate while the volute does not rotate.

[0194] The distance between any two devices must be greater than 200mm, and the distance between the devices and the edge of the tower must be greater than 350mm.

[0195] The specific process of generating the material tube in the assembly module is as follows: First, select the type of material tube, and then select the discharge port and inlet at the lower end of the cyclone in the preheater construction environment. The material tube is automatically generated based on the principle of minimum total length. The diameter of the material tube is equal to the diameter of the discharge port at the lower end of the cyclone and the angle between the material tube and the horizontal is not less than 60°.

[0196] For the feed pipe of the bottom cyclone (C6 feed pipe 10), the feed inlet is located on the smoke chamber 1; for the feed pipe of the second to last cyclone (C5 feed pipe 9), the feed inlet is located on the feeding box of the decomposition furnace, with 2-3 feed inlets. The feed pipe is a multi-distribution type, and the distribution valve 901 will be automatically generated at the appropriate position during the automatic generation of the feed pipe; for the feed pipes of other cyclones (such as C4 feed pipe 5), the feed inlet is located on the feeding box of the air duct.

[0197] The material dispensing box can be adjusted 360° along the air duct, and the position of the material dispensing box should be as close as possible to the horizontal distance of the cyclone outlet.

[0198] The output module contains engineering drawings including preheater cross-sectional views and floor plans for each floor. The layout and annotation styles of the drawings are pre-configured, and the required engineering drawings will be automatically generated after the preheater is built.

[0199] An information data processing terminal is used to implement the above-mentioned intelligent design method for preheaters based on BIM modeling optimization.

[0200] A computer-readable storage medium includes instructions that, when executed on a computer, cause the computer to perform the aforementioned intelligent design method for preheaters based on BIM modeling optimization.

[0201] In the above embodiments, implementation can be achieved, in whole or in part, through software, hardware, firmware, or any combination thereof. When implemented, in whole or in part, as a computer program product, the computer program product includes one or more computer instructions. When the computer program instructions are loaded or executed on a computer, all or part of the processes or functions described in the embodiments of the present invention are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that integrates one or more available media. The available medium can be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., a solid-state drive (SSD)).

[0202] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention shall fall within the scope of the technical solution of the present invention.

Claims

1. A preheater intelligent design method based on BIM modeling optimization, characterized in that, include: S1: Create a parameterized family database for the BIM-based preheater equipment; specifically: S1.1: The preheater equipment is divided into a decomposition furnace, a flue, a cyclone separator, and air ducts; S1.2: Based on the BIM platform, create parametric families for the decomposition furnace, smoke chamber, cyclone, and ductwork. Parametric relationships are established in the family environment or imported via CSV data files. The parameter information of the equipment family is modified in the preheater setup environment; among which: The establishment of the cyclone duct parameter family is based on: The proportional relationships between the total height H, the inner cylinder diameter d, the eccentricity e1 of the R2 arc segment, the eccentricity e2 of the R3 arc segment, and the cylinder diameter D are H / D=2-3.2, d / D=0.4-0.6, e1 / D=0.06-0.15, and e2 / D=0-0.

3. Entrance height a: In the formula =0.15-0.35, α is the horizontal angle of the entrance, m=0.3-0.6; The width b of the top edge of the inlet and the height s of the inner cylinder are directly proportional to the height a of the inlet, with the ratios b / a = 0.3-0.6 and s / a = 0.5-1.

5. The width of the bottom edge of the entrance, c: c = b - 2 × e1 - e2; Height H of the inclined section of the volute 1-2 H 1-2 = (ac) × tanα; Height H of the straight section of the volute 1-1 H 1-1 =aH 1-2 ; Cone height H3: H3=(D-Ø) / 2×tanβ, where β is the angle between the inclined plane of the cone and the horizontal, β≥70°; Ø is the diameter of the lower part of the cone, which is determined according to the amount of raw material; if it is a skewed cone, the angle between the axis of the skewed cone and the horizontal shall not be less than 60°. Column height H2: H2 = Ha - H3; By inputting the diameter D of the cyclone cylinder and the diameter Ø of the lower part of the cone through the above dimensional relationships, all modeling dimensions are obtained, and then a three-dimensional model of the cyclone is established. S1.3: Encode the parameterized families, each code is labeled with family name, specifications and location information; the location information of the smoke chamber, decomposer furnace and air ducts at all levels is the center position of the air inlet, and the location information of each cyclone is the center position of the top of the volute. The location information can be modified in the preheater construction environment. S1.4: Establish a family database. The database is classified according to the production line specifications for cyclones, air ducts, smoke chambers, and decomposition furnaces. The family database is updated in real time. S2: Based on the basic information of the production line, calculate and obtain the specifications of the preheater unit and the tower dimensions; S3: Enter the tower dimensions in the preheater design plugin to generate the preheater tower; S4: Based on the preheater design plugin, call the individual preheater series devices from the family database; S5: Calculate the cyclone separation efficiency using simulation software, and optimize the cyclone structure based on the feedback separation efficiency; S6: Install the preheater and adjust the individual equipment in conjunction to complete the equipment assembly; S7: Automatic optimization generation of material pipe based on preheater design plug-in; S8: Check the design scheme and output engineering drawings.

2. The intelligent design method for preheaters based on BIM modeling optimization according to claim 1, characterized in that: In S1.2: The parameter family of the decomposer is established based on the following: the size of the decomposer air outlet is equal to that of the bottom cyclone inlet; the diameter d1 of the decomposer air inlet is equal to that of the smoke chamber air outlet; the position of the decomposer constriction center is related to the floor elevation of the preheater tower, and the decomposer constriction center is located 1-3m below the floor; the height of the decomposer upward and downward pipes are open parameters that can be adjusted during the preheater construction process. The establishment of the duct parameter family is based on the following: the diameter of the duct inlet is equal to the diameter d of the inner cylinder of the next stage cyclone; the size of the duct outlet is consistent with the size of the inlet of the previous stage cyclone; the material distribution box is 1~2m away from the bottom of the duct and rotates 360° along the duct column; the duct height and the length of the inclined section of the outlet are open parameters that are automatically adjusted according to the position of the cyclone during the preheater construction process.

3. The intelligent design method for preheaters based on BIM modeling optimization according to claim 2, characterized in that: The preheater design plugin in S3 is embedded into the menu of the BIM software through an API interface. The plugin includes a preheater tower generation module, a family library calling module, and a material pipe generation module. The function of the preheater tower generation module is as follows: input the length and width of the tower and the elevation of each floor, and generate the grid and tower; the tower includes floor slabs and columns. The floor slabs are generated at each floor elevation, and their length and width are consistent with the input tower dimensions; the columns are generated at the intersection of the grid. The function of calling the family library module is: input the production line scale, select the preheater type and the type of individual equipment, and call the preheater equipment; The function of the material tube generation module is to automatically generate a material tube based on the principle of minimum total length by selecting the outlet and inlet in the generated preheater, and then adjust it according to the collision situation after generation.

4. The intelligent design method for preheaters based on BIM modeling optimization according to claim 1, characterized in that, In S4: the preheater types include 3-7 stage preheaters, single-row preheaters, and double-row preheaters; after entering the preheater type, the interface will pop up the codes for multiple cyclones, air ducts, decomposition furnaces, and smoke chambers, and you can selectively enter the location information in the codes.

5. The intelligent design method for preheaters based on BIM modeling optimization according to claim 1, characterized in that, In S5: The simulation software is CPFD software. A virtual model based on production information and cyclone structure is established in CPFD software to calculate the separation efficiency. If the cumulative separation efficiency of the cyclone is less than 90%, the height of the bottom cyclone is increased first, and then the calculation is performed. If the efficiency is still less than 90%, the height of the next layer of cyclone is increased, and then the calculation is performed. And so on. That is, when the cumulative separation efficiency is less than 90%, the height of the cyclone from the bottom layer to the top layer is increased sequentially. The total height H1 = H●δ, where δ takes a value of 1.05~1.

15. If the separation efficiency still does not reach 90% after one round of modifications to the total height of the cyclone separator from the bottom to the top, a second round of modifications will be carried out, with a maximum of two rounds of modifications.

6. The intelligent design method for preheaters based on BIM modeling optimization according to claim 1, characterized in that, In S6: The preheater setup logic includes: First, determine the positions of the smoke chamber and the bottom cyclone; the air inlet of the decomposition furnace is directly connected to the air outlet of the smoke chamber; the air outlet of the decomposition furnace is tangentially connected to the air inlet of the bottom cyclone; the air inlets of each level of duct are automatically connected to the air outlets of the next level of cyclone, and the air outlets are automatically connected to the air inlets of the previous level of cyclone. The air inlets of the cyclone and the air outlets of the ducts are connected tangentially. The length and direction of the inclined section of the air outlet duct are automatically adjusted according to the position of the air inlet of the cyclone, and the height of the duct is automatically adjusted according to the position of the volutes of the upper and lower cyclone stages. Each level of cyclone separator is located on the floor plane, and the bottom of the cyclone separator column is more than 1200mm away from the floor plane; if the cyclone separator cone collides with the air duct, the cone will be adjusted to be a tilted cone, and during the adjustment process, the tilted cone will rotate while the volute will not rotate; The distance between any two devices must be greater than 200mm, and the distance between the devices and the edge of the tower must be greater than 350mm; The specific process of generating the feed tube is as follows: First, select the type of material pipe. Then, select the discharge port and inlet at the bottom of the cyclone in the preheater construction environment. The material pipe is automatically generated according to the principle of minimum total length. The diameter of the material pipe is equal to the diameter of the discharge port at the bottom of the cyclone and the angle between the material pipe and the horizontal is not less than 60°. For the feed pipe of the bottom cyclone, the feed inlet is located on the smoke chamber; for the feed pipe of the second to last cyclone, the feed inlet is located on the feeding box of the decomposition furnace, with 2-3 feed inlets. The feed pipe is of the multi-distribution type, and the distribution valve is automatically generated during the automatic generation of the feed pipe; for the feed pipes of other cyclones, the feed inlet is located on the feeding box of the air duct. The position of the material distribution box is adjusted 360° along the air duct, and the position of the material distribution box is close to the horizontal distance of the cyclone discharge port.

7. A preheater intelligent design system based on BIM modeling optimization, characterized in that, The system for implementing the BIM-based modeling optimization intelligent design method for preheaters as described in claim 1 includes: Database creation module: Creates a parametric family database for BIM-based preheater equipment; Calculation module: Based on the basic information of the production line, calculates the specifications of the preheater unit and the tower dimensions; Preheater tower generation module: Input the tower dimensions in the preheater design plugin to generate the preheater tower; Calling module: Based on the preheater design plugin, call individual preheater series devices from the family database; Simulation and calculation module: Calculates the separation efficiency of the cyclone separator using simulation software to optimize the structure of individual equipment; Assembly module: Build the preheater and adjust the individual equipment in conjunction to complete the equipment assembly; Material tube generation module: Automatically generates material tubes based on preheater design plug-in; Output module: Check the design scheme and output engineering drawings.

8. The intelligent design system for preheaters based on BIM modeling optimization according to claim 7, characterized in that, The preheater design plugin in the preheater tower generation module is embedded into the menu of the BIM software through an API interface. The plugin includes the preheater tower generation module, the family library calling module, and the material pipe generation module.

9. The intelligent design system for preheaters based on BIM modeling optimization according to claim 7, characterized in that: The database creation module is based on the BIM platform and is called by the calling module through coded information. The parameters of the created equipment family are adjusted in the equipment module. The calculation module is provided by software that supports the calculation program or is embedded in the preheater design plugin; The preheater tower generation module, the calling module, the assembly module, and the material pipe generation module are all used in the preheater construction environment. The modules are interconnected. During the use of the assembly module, more suitable individual equipment is called from the calling module according to the assembly situation. The material pipe generation module adjusts the material pipe scheme in real time according to the results of the assembly module. The simulation calculation module can call the database to create device families and can feed back the simulation results to the equipment module to adjust the equipment parameters. After the database creation module, calculation module, preheater tower generation module, calling module, assembly module, and material pipe generation module complete their actions, the output module will check for problems in the design scheme and issue reminders. Once the checks are correct, it will automatically generate engineering drawings that conform to the design specifications.

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