Large-scale physical simulation test similar model material recycling system and recycling method

Abstract

The application discloses a large-scale physical simulation test similar model material recycling system, which comprises a combined rock breaking device, a microwave processing device, a pneumatic conveying device and a main body counterforce frame; the combined rock breaking device is arranged on the main body counterforce frame; the microwave processing device is communicated with the combined rock breaking device through a first material conveying pipeline; the pneumatic conveying device comprises a rotary feeder, a Roots blower, an air induction fan, a dust remover, a coarse aggregate bin, a fine aggregate bin and a micro-fine powder bin; the dust remover and the air induction fan are connected to the coarse aggregate bin, the fine aggregate bin and the micro-fine powder bin; and a large-scale physical simulation test similar model material recycling method is also disclosed.The application can greatly improve the rock breaking efficiency and the material recycling rate, realizes closed dust-free conveying of the material, improves the automation and mechanization degree of the recycling system, reduces the labor intensity of the personnel, improves the laboratory environment, and reliably, simply, quickly and efficiently recycles and reuses the physical similar model material.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of geomechanical model test, in particular to a large-scale physical simulation test similar model material recycling system and method. BACKGROUND

[0002] The geomechanical model test method is an effective way to study some large-scale geotechnical engineering problems with complex engineering geological conditions. According to the similarity principle, a model similar to the prototype is constructed by using similar materials to carry out simulation tests, which can more directly and truly study engineering problems. Such large-scale physical simulation tests require a large amount of similar materials, and the preparation of materials requires a large amount of work and high cost. The required funds and time account for a large proportion of the entire model test. Therefore, the recycling of similar materials is of great significance to reduce the cost of the test, shorten the test period, and save resources and energy consumption.

[0003] However, the existing similar model material recycling system and method has the following problems: 1) the recycling rate of similar materials is not high enough; 2) a large amount of dust is generated during the crushing and recycling process of similar materials, which pollutes the laboratory environment, has poor working conditions, and harms the health of experimental personnel; 3) the existing equipment or device system has low integration, low mechanization and automation, and high labor intensity. SUMMARY

[0004] Therefore, the present application provides a large-scale physical simulation test similar model material recycling system and method, which aims to solve the problems in the prior art.

[0005] To solve the above technical problems, the present application adopts the following technical solutions:

[0006] A large-scale physical simulation test similar model material recycling system, comprising: a combined rock breaking device, a microwave processing device, a pneumatic conveying device, and a main body counterforce frame; the combined rock breaking device is arranged on the main body counterforce frame; the inlet of the microwave processing device is in communication with the combined rock breaking device through a first material conveying pipeline; the pneumatic conveying device comprises a rotary feeder, a Roots blower, an air induction fan, a dust collector, a coarse aggregate bin, a fine aggregate bin, and a micro-fine powder bin; the inlet of the rotary feeder is in communication with the outlet of the microwave processing device; the coarse aggregate bin, the fine aggregate bin, and the micro-fine powder bin are all in communication with the outlet of the rotary feeder; the Roots blower is in communication with the rotary feeder; and each of the coarse aggregate bin, the fine aggregate bin, and the micro-fine powder bin is connected with one dust collector and one air induction fan.

[0007] Preferably, the combined rock breaking device comprises a rock breaking mechanism and a three-dimensional moving guide rail; the three-dimensional moving guide rail is arranged on the main body counterforce frame; and the rock breaking mechanism is arranged on the three-dimensional moving guide rail.

[0008] Preferably, the rock breaking mechanism comprises a cutter head, a driving motor, a connecting bracket, a mounting seat and a crushing blade; the mounting seat is connected to the three-dimensional moving guide rail through the connecting bracket; a plurality of cutter heads are evenly distributed around the lower part of the mounting seat; the top end of each cutter head is connected to the output end of a driving motor; each driving motor is arranged at the top end of the mounting seat; the crushing blade is arranged at the bottom end of the cutter head; a negative pressure suction material channel is arranged through the connecting bracket and the middle part of the mounting seat; the negative pressure suction material channel is in communication with the first material conveying pipeline through a vacuum pump.

[0009] Preferably, the number of cutter heads is twelve; twelve cutter heads are evenly distributed around the negative pressure suction material channel.

[0010] Preferably, the number of crushing blades is four; four crushing blades are evenly distributed at the bottom end of the cutter head.

[0011] Preferably, the four crushing blades comprise two high-strength hard alloy knives and two diamond knives; the two high-strength hard alloy knives and the two diamond knives are arranged alternately.

[0012] Preferably, the microwave processing device comprises a sealed box, a microwave heating device and a vibrating screen; the microwave heating device and the vibrating screen are arranged in the sealed box.

[0013] Preferably, the rotary feeder comprises an electric rotary feeder, an automatic plug valve, an air extraction chamber and a gas-solid mixed accelerator; the Roots blower is provided with an air filter and a pressure transmitter.

[0014] A large-scale physical simulation test similar model material recycling method utilizes the large-scale physical simulation test similar model material recycling system, and comprises the following steps:

[0015] S1: The combined rock breaking device automatically breaks and collects the model, and the collected material is conveyed to the microwave processing device through the first material conveying pipeline;

[0016] S2: The microwave processing device reprocesses and screens the collected material;

[0017] S3: The material screened by the microwave processing device is classified and conveyed to each bin through the pneumatic conveying device.

[0018] The present application has the following technical effects compared with the prior art:

[0019] 1) The integrated system with high degree of mechanization and automation is successfully applied to the recycling of large-scale physical simulation test similar model material, realizing full-process mechanized operation, greatly reducing the labor intensity of personnel and improving the work efficiency;

[0020] 2) The combined rock breaking and recycling device of the present application is mounted on a three-dimensional moving guide rail, and is controlled by a corresponding program to realize automatic breaking and recycling, has strong rock breaking capacity, high efficiency, effectively reduces the tool wear rate, and is simple and convenient to operate;

[0021] 3) The present application can realize the grading screening of similar materials, effectively improve the recovery rate, and the material properties are more in line with natural aggregates;

[0022] 4) The present application can realize closed conveying of materials, improve the harsh environment of dust flying in the laboratory, and protect the health of workers;

[0023] 5) The application of the system and method can efficiently complete the recycling of similar materials, reduce the cost of similar materials for model test, shorten the test preparation period, and develop green, environmentally friendly and low-energy model test. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a schematic diagram of a large-scale physical simulation test similar model material recycling system;

[0025] Figure 2 is a structural schematic diagram of a combined rock breaking device;

[0026] Figure 3 is a structural schematic diagram of a three-dimensional moving guide rail;

[0027] Figure 4 is a structural schematic diagram of a rock breaking mechanism;

[0028] In the figure: 1, combined rock breaking device; 101, rock breaking mechanism; 1011, cutter head; 1012, driving motor; 1013, connecting bracket; 1014, mounting seat; 1015, breaking blade; 102, three-dimensional moving guide rail; 1021, X-axis moving guide rail; 1022, Y-axis moving guide rail; 1023, Z-axis moving guide rail; 2, microwave processing device; 3, rotary feeder; 4, main body counterforce frame; 5, first conveying pipeline; 6, negative pressure suction channel; 7, second conveying pipeline; 8, third conveying pipeline; 9, Roots blower; 10, induced draft fan; 11, dust collector; 12, coarse aggregate bin; 13, fine aggregate bin; 14, micro-fine powder bin. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0030] Referring to Figures 1-4 The present application provides a large-scale physical simulation test similar model material recycling system, comprising: a combined rock breaking device 1, a microwave processing device 2, a pneumatic conveying device, and a main body counterforce frame 4; the combined rock breaking device 1 is arranged on the main body counterforce frame 4; the feed inlet of the microwave processing device 2 is communicated with the combined rock breaking device 1 through a first material conveying pipeline 5; the pneumatic conveying device comprises a rotary feeder 3, a Roots blower 9, an air blower 10, a dust collector 11, a coarse aggregate bin 12, a fine aggregate bin 13, and a micro-fine powder bin 14; the feed inlet of the rotary feeder 3 is communicated with the discharge outlet of the microwave processing device 2 through a second material conveying pipeline 7; the coarse aggregate bin 12, the fine aggregate bin 13, and the micro-fine powder bin 14 are communicated with the discharge outlet of the rotary feeder 3 through a third material conveying pipeline 8; the Roots blower 9 is communicated with the rotary feeder 3; each of the coarse aggregate bin 12, the fine aggregate bin 13, and the micro-fine powder bin 14 is connected with a dust collector 11 and an air blower 10, and air is discharged from the air outlet after being filtered and cleaned, so that the working environment can be improved; after the model test is completed, the combined rock breaking device 1 is installed on a three-dimensional moving guide rail 102, the three-dimensional moving guide rail 102 drives the combined rock breaking device 1 to automatically break and collect the model, and the collected material is conveyed to the microwave processing device 2 through the first material conveying pipeline 5, the microwave processing device 2 reprocesses the collected material, and the material of different particle sizes closer to the nature of the aggregate is obtained through microwave heating and screening; the material screened by the microwave processing device 2 is conveyed into the rotary feeder 3 through the second material conveying pipeline 7, the Roots blower 9 generates positive pressure to convey the material of different particle sizes in the rotary feeder 3 into the corresponding coarse aggregate bin, fine aggregate bin, and micro-fine powder bin, and the recycling is completed; the entire system is integrated, mechanized, and highly automated, can effectively reduce the labor intensity, effectively improve the working environment, protect the health of workers, and has a high similar material recycling rate.

[0031] In the embodiment, the combined rock breaking device 1 comprises a rock breaking mechanism 101 and a three-dimensional moving guide rail 102; the three-dimensional moving guide rail 102 is arranged on the main body counterforce frame 4; the rock breaking mechanism 101 is arranged on the three-dimensional moving guide rail 102; the three-dimensional moving guide rail 102 can drive the rock breaking mechanism 101 to move in three axes, so as to achieve the purpose of point breaking.

[0032] In the embodiment, the three-dimensional moving guide rail 102 comprises an X-axis moving guide rail 1021, a Y-axis moving guide rail 1022, and a Z-axis moving guide rail 1023.

[0033] In the embodiment, the rock breaking mechanism 101 comprises a cutter head 1011, a driving motor 1012, a connecting bracket 1013, a mounting seat 1014 and a breaking blade 1015; the mounting seat 1014 is connected to the three-dimensional moving guide rail 102 through the connecting bracket 1013; a plurality of cutter heads 1011 are arranged below the mounting seat 1014; the top end of each cutter head 1011 is connected to the output end of a driving motor 1012, so that each cutter head 1011 is driven by a separate power source and rotates through shaft transmission; each driving motor 1012 is arranged at the top end of the mounting seat 1014; the breaking blade 1015 is arranged at the bottom end of the cutter head 1011; a negative pressure suction channel 6 is arranged through the middle part of the connecting bracket 1013 and the mounting seat 1014; the negative pressure suction channel 6 is in communication with the first material conveying pipeline 5 through a vacuum pump; a plurality of cutter heads 1011 are arranged around the negative pressure suction channel 6; in use, the driving motor 1012 is started, the driving motor 1012 drives the cutter head 1011 and the breaking blade 1015 to rotate to break the model into blocky materials, at the same time, the vacuum pump is started, the vacuum pump generates negative pressure in the negative pressure suction channel 6 to pump and convey the materials and convey the collected materials to the microwave processing device 2 through the first material conveying pipeline 5, and in the process, the three-dimensional moving guide rail 102 drives the whole rock breaking mechanism to move to realize point breaking.

[0034] In the embodiment, the number of cutter heads 1011 is twelve.

[0035] In the embodiment, the number of breaking blades 1015 is four; the four breaking blades 1015 are arranged at the bottom end of the cutter head 1011.

[0036] In the embodiment, the four breaking blades 1015 comprise two high-strength hard alloy knives and two diamond knives; the two high-strength hard alloy knives and the two diamond knives are arranged alternately to improve the rock breaking effect and efficiency.

[0037] In the embodiment, the microwave processing device 2 comprises a sealed box, a microwave heating device and a vibrating screen; the microwave heating device and the vibrating screen are arranged in the sealed box.

[0038] In the embodiment, the sealed box is provided with a feeding port and coarse and fine aggregate collecting areas to ensure that dust is not leaked out during the screening process.

[0039] In the embodiment, the microwave heating device and a protective cover are arranged on the top wall of the inner cavity of the sealed box; the protective cover prevents the broken materials from splashing and damaging the microwave heating device during mechanical grinding.

[0040] In the embodiment, the lower part of the sealed box is provided with three layers of screening meshes to perform multi-stage screening on the broken materials and realize classification and recovery of high-quality aggregates.

[0041] In the embodiment, the rotary feeder 3 comprises an electric rotary feeder, an automatic plug valve, an air extraction chamber and a gas-solid mixing accelerator; the sieved material in the microwave processing device 2 is classified and fed into the rotary feeder 3, the aggregate with different particle sizes is sequentially and cyclically fed into the electric rotary feeder through the automatic plug valve in the order from large to small, the positive pressure is generated by the Roots blower 9, and after being accelerated in the gas-solid mixing acceleration chamber, the aggregate is sent into the coarse aggregate bin 12, the fine aggregate bin 13 and the micro-fine powder bin 14 through the third feeding pipeline 8.

[0042] In the embodiment, the Roots blower 9 comprises an air filter and a pressure transmitter to provide the air pressure required for transporting the aggregate with different particle sizes.

[0043] In the embodiment, the rock breaking mechanism 101 is provided with a speed reduction mechanism to ensure that the power output meets the requirements.

[0044] The application also provides a large-scale physical simulation test similar model material recycling method using the large-scale physical simulation test similar model material recycling system, which comprises the following steps:

[0045] S1: after the model test is completed, the combined rock breaking device 1 is installed on the three-dimensional moving guide rail 102;

[0046] S2: the driving motor 1012 and the vacuum pump are started, the driving motor 1012 drives the cutter head 1011 and the breaking blade 1015 to rotate to break the model into blocky materials, the vacuum pump collects the materials through the negative pressure suction channel 6 and transports the collected materials to the microwave processing device 2 through the first feeding pipeline 5;

[0047] S3: during the rock breaking process, the corresponding program is used to control the tunneling parameters in real time, such as the breaking rotation speed, the tunneling position, the travel distance and the like, so as to realize the automatic breaking and collecting of the materials of the whole model;

[0048] S4: the collected materials are reprocessed by the microwave processing device 2, and the materials with different particle sizes which are closer to the properties of natural aggregate are obtained through microwave heating and sieving;

[0049] S5: the sieved materials in the microwave processing device 2 are classified and fed to the coarse aggregate bin 12, the fine aggregate bin 13 and the micro-fine powder bin 14 through the pneumatic conveying device.

[0050] The above is only a preferred embodiment of the application, and does not limit the technical scope of the application, so any slight modification, equivalent change and modification made according to the technical essence of the application to the above embodiment are still within the scope of the technical solution of the application.

Claims

1. A large-scale physical simulation test similar model material recycling system, characterized in that, It comprises: Combined rock breaking device (1), microwave processing device (2), pneumatic conveying device and main body counterforce frame (4); the combined rock breaking device (1) is arranged on the main body counterforce frame (4); the feed inlet of the microwave processing device (2) is communicated with the combined rock breaking device (1) through the first feeding pipe (5); the pneumatic conveying device comprises a rotary feeder (3), a Roots blower (9), an induced draft fan (10), a dust collector (11), a coarse aggregate bin (12), a fine aggregate bin (13) and a micro-fine powder bin (14); the feed inlet of the rotary feeder (3) is communicated with the discharge outlet of the microwave processing device (2); the coarse aggregate bin (12), the fine aggregate bin (13) and the micro-fine powder bin (14) are all communicated with the discharge outlet of the rotary feeder (3); the Roots blower (9) is communicated with the rotary feeder (3); the coarse aggregate bin (12), the fine aggregate bin (13) and the micro-fine powder bin (14) are all connected with the dust collector (11) and the induced draft fan (10); The combined rock breaking device (1) comprises a rock breaking mechanism (101) and a three-dimensional moving guide rail (102); the three-dimensional moving guide rail (102) is arranged on the main body counterforce frame (4); the rock breaking mechanism (101) is arranged on the three-dimensional moving guide rail (102); The rock breaking mechanism (101) comprises a cutter head (1011), a driving motor (1012), a connecting support (1013), a mounting seat (1014) and a crushing blade (1015); the mounting seat (1014) is connected to the three-dimensional moving guide rail (102) through the connecting support (1013); a plurality of cutter heads (1011) are uniformly distributed around the lower portion of the mounting seat (1014); the top end of each cutter head (1011) is connected to the output end of a driving motor (1012); each driving motor (1012) is arranged at the top end of the mounting seat (1014); the crushing blade (1015) is arranged at the bottom end of the cutter head (1011); a negative pressure suction channel (6) is arranged in the middle of the connecting support (1013) and the mounting seat (1014); the negative pressure suction channel (6) is communicated with the first feeding pipe (5) through a vacuum pump.

2. The large physical simulation test similar model material recycling system according to claim 1, characterized in that, The number of the crushing blades (1015) is four; the four crushing blades (1015) are uniformly distributed at the bottom end of the cutter head (1011).

3. The large physical simulation test similar model material recycling system according to claim 2, characterized in that, The four crushing blades (1015) comprise two high-strength hard alloy knives and two diamond knives.

4. The large physical simulation test similar model material recycling system according to claim 1, characterized in that, The microwave processing device (2) comprises a sealed box, a microwave heating device and a vibrating screen; the microwave heating device and the vibrating screen are arranged in the sealed box.

5. The large physical analog test scale model material recycling system of claim 1, wherein, The rotary feeder (3) comprises an electric rotary feeder, an automatic plug valve, an air extraction chamber and a gas-solid mixed accelerator; the Roots blower (9) is provided with an air filter and a pressure transmitter.

6. A large-scale physical simulation test similar model material recycling method, characterized in that, The large-scale physical simulation test similar model material recycling system as claimed in any one of claims 1-5 comprises the following steps: S1: The combined rock breaking device (1) automatically breaks and collects the model, and the collected material is transported to the microwave processing device (2) through the first material conveying pipeline (5); S2: The microwave processing device (2) reprocesses and screens the collected material; S3: The material screened by the microwave processing device (2) is classified and transported to each bin by the pneumatic conveying device.

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