CN212393019U - Device for frozen soil fragmentation - Google Patents

Abstract

The utility model provides a device for cracking frozen soil, which comprises a microwave radiator; the microwave radiator is rotatably arranged on the upright post through the multistage waveguide, the upright post is fixed on the chassis, and the microwave source is fixed on the chassis and is connected to the microwave radiator in a microwave transmission way. The utility model also provides a method of the cracked frozen soil of high energy microwave near field focus, adopt can reciprocate and directional microwave radiator down, carry out the frozen soil and unfreeze and smash, be applied to and carry out cracked to permanent frozen soil. The utility model discloses energy utilization is high, and cracked fast, weak point consuming time, the quick travel of being convenient for, easy operation has characteristics quick, safe, that the reliability is high, manual intervention is few.

Description

Device for frozen soil fragmentation

Technical Field

The utility model relates to a be used for cracked device of frozen soil belongs to the cracked field of frozen soil.

Background

The frozen soil is a soil body with the hardness of soil increased by transforming the water content in the soil body into crystals (ice) at subzero temperature, and the crystals are cemented into solid particles.

The perennial frozen soil in China accounts for 22.3 percent of the area of the Chinese soil, the seasonal frozen soil accounts for 52.7 percent of the area of the Chinese soil, and the third place in the world is mainly distributed in the Qinghai-Tibet plateau areas at high altitude and the northeast areas at high altitude, the areas are in severe cold regions, and the climate causes the formation of permanent frozen soil. Because a high-strength interface is easily formed between the ice structure in the frozen soil and the soil, the mechanical property of the frozen soil is hard and brittle, and the frozen soil is extremely difficult to damage, and becomes a bottleneck problem which is not solved for the construction of the industrial work in the alpine region for years. The traditional work construction means (such as drilling, trench digging and other equipment) and the steam and infrared fragmentation methods have the characteristics of shallow fragmentation depth, low fragmentation speed, long fragmentation time, high fragmentation energy consumption and low energy utilization rate, the requirements of field operations of army operations cannot be met when the hard and brittle characteristics of permafrost are faced, and the work construction of high and cold areas needs new frozen soil deconstruction theory and method for traction and support urgently. Previous studies have shown that properties of frozen earth are greatly affected by the interfacial bonding force between internal ice and earth.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a be used for cracked device of frozen soil, this be used for cracked device of frozen soil can be high-efficient, carry out frozen soil fast cracked.

The utility model discloses a following technical scheme can realize.

The utility model provides a device for cracking frozen soil, which comprises a microwave radiator; the microwave radiator is rotatably arranged on the upright post through the multistage waveguide, the upright post is fixed on the chassis, and the microwave source is fixed on the chassis and is connected to the microwave radiator in a microwave transmission way.

The multistage waveguide is two-stage, and is respectively a right transmission waveguide and a left transmission waveguide which are rotatably connected with each other.

The upright post is fixed perpendicular to the chassis.

The microwave radiator is hung at the end part of the multistage waveguide and faces downwards under the action of gravity.

The microwave radiator is positioned at the rear of the chassis, and the chassis is a truck chassis.

The end part of the short hydraulic cylinder can be rotationally fixed on the right transmission waveguide, and the other end of the short hydraulic cylinder is arranged on the upright post.

The end part of the long hydraulic cylinder can be rotationally fixed on the left transmission waveguide, and the other end of the long hydraulic cylinder is arranged on the upright post.

The bottom of the upright post is provided with a rotating disk.

And a cooling system is arranged on the microwave source.

The beneficial effects of the utility model reside in that: the energy utilization rate is high, the fragmentation speed is high, the time consumption is short, the rapid movement is convenient, the operation is simple, and the method has the characteristics of rapidness, safety, high reliability and less manual intervention.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic view of the structure of FIG. 1 from another perspective;

fig. 3 is a schematic view of the working principle of the present invention.

In the figure: 1-chassis, 2-microwave source, 3-upright post, 4-right transmission waveguide, 5-left transmission waveguide, 6-short hydraulic cylinder, 7-long hydraulic cylinder, 8-microwave radiator, 9-rotating disk, 10-cooling system, 11-pin shaft, 12-power supply, 13-magnetron, 14-waveguide, 15-liftable rotating device.

Detailed Description

The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.

A device for fragmentation of frozen earth as shown in figures 1 and 2 comprises a microwave radiator 8; the microwave radiator 8 is rotatably arranged on the upright post 3 through the multistage waveguide, the upright post 3 is fixed on the chassis 1, the microwave source 2 is fixed on the chassis 1, and the microwave is transmitted and connected to the microwave radiator 8.

The multistage waveguide is two-stage, and is respectively a right transmission waveguide 4 and a left transmission waveguide 5 which are rotatably connected with each other.

The upright 3 is fixed perpendicular to the chassis 1.

The microwave radiator 8 is suspended at the end of the multistage waveguide and faces downwards under the action of gravity.

The microwave radiator 8 is positioned at the rear part of the chassis 1, and the chassis 1 is a truck chassis.

The end part of a short hydraulic cylinder 6 can be rotationally fixed on the right transmission waveguide 4, and the other end of the short hydraulic cylinder 6 is arranged on the upright post 3.

The end part of a long hydraulic cylinder 7 can be rotationally fixed on the left transmission waveguide 5, and the other end of the long hydraulic cylinder 7 is arranged on the upright post 3.

The bottom of the upright post 3 is provided with a rotating disc 9.

The microwave source 2 is provided with a cooling system 10.

The utility model discloses can adopt and can reciprocate and directional microwave radiator down, carry out frozen soil and unfreeze and hit the bits of broken glass, be applied to and carry out cracked to permanent frozen soil.

Example 1

By adopting the scheme, the microwave source and the cooling system are respectively integrated into a cuboid device, the microwave source and the cooling system are fixedly installed at the position close to the chassis headstock, the cooling system is installed behind the microwave source, the bottom of the microwave source and the cooling system is fixedly connected with the chassis, the bottom end of the upright post is connected with the rotating disk, the rotating disk is fixedly connected with the chassis at the rear, the upright post can rotate on the rotating disk for 360 degrees, the right transmission waveguide is connected with the tail end of the upright post, the other end of the right transmission waveguide is connected with the left transmission waveguide, the other end of the left transmission waveguide is connected with a wedge-angle horn-shaped microwave radiator, hydraulic cylinders are connected between the upright post and the rotary transmission waveguide, the right transmission waveguide and the left transmission waveguide, the short hydraulic cylinder provides power for pitching of the rotary transmission waveguide, and the.

As shown in fig. 3, the microwave source device can generate a microwave field, the microwave field interacts with polar molecules in a medium to generate microwave energy, the microwave energy enters the microwave radiator through the rotatable transmission waveguide, the microwave radiator has a certain distance from the ground, the distance can be changed by stretching and retracting of the liftable rotating device 15 (such as a short hydraulic cylinder and a long hydraulic cylinder), the frozen soil absorbs the microwave energy in the microwave field to heat the frozen soil, and thermal stress is generated to achieve the effect of fragmentation.

In operation, the switch is turned on, the power supply 12 provides power for the entire device, and the voltage of the power supply is adjustable, i.e., the power of the entire circuit is adjustable, thereby changing the intensity of the applied electric field. The magnetron 13 generates microwaves and transmits them to the waveguide 14, and the microwave radiator has a radiation hole at the bottom end thereof through which the microwaves can radiate through frozen earth, and the heating and thawing of the frozen earth are described in the section of the utility model. When withdrawing, the rotating disc 9 is only required to rotate around the central shaft, and the right transmission waveguide and the left transmission waveguide are pitched so that the microwave radiator is placed on the chassis.

The upright post, the right transmission waveguide, the left transmission waveguide and the microwave radiator are hinged in a rotatable fixing mode.

The transmission route of the fragmentation microwave energy is chassis, microwave source, rotatable transmission waveguide, microwave radiator and frozen soil, the microwave source generates a microwave field, the microwave field is transmitted to the microwave radiator through the transmission waveguide, the microwave radiator faces the frozen soil to be fragmented, and the frozen soil absorbs microwave energy in the microwave field to heat the frozen soil, so that the fragmentation effect is achieved. The device comprises a chassis, a microwave source, an upright post, a right transmission waveguide, a left transmission waveguide, a short hydraulic cylinder, a long hydraulic cylinder, a microwave radiator, a rotating disk, a cooling system and a pin shaft. The microwave source device is equipped with power and magnetron in, the magnetron is connected with the power, the utility model discloses a short pneumatic cylinder and long pneumatic cylinder are adjusted radiator and the height on ground, and the power of microwave power is adjustable to this intensity of adjusting the microwave field, the magnetron can be gone out microwave signal transmission, has a plurality of waveguides in connecting the oral siphon with microwave radiator. The bottom end of the microwave radiator is provided with radiation holes, microwaves are radiated into frozen soil through the radiation holes, and the cooling system is used for cooling the chassis and the heat of the microwave source to prevent the device from being overheated.

The surface of the anode block of the magnetron consists of a plurality of resonant cavities, and each resonant cavity is equivalent to a resonant loop consisting of an inductance coil and a capacitor in a high-frequency transmitter. When the magnetron is in operation, the directions of the high-frequency electric fields induced by adjacent resonant cavities are opposite to each other, and the directions of the high-frequency electric fields on the fins are also opposite. When the charged particles are accelerated, there is electromagnetic radiation, so that the electrons transfer their energy from the DC electric field to the high-frequency electric field in the form of radiation when they are accelerated. When the electron movement is synchronous with the change of the high-frequency electric field, the electrons give kinetic energy obtained from the direct-current electric field to the high-frequency electric field continuously until the electrons hit the anode along with the movement to generate current. The cathode continuously emits electrons, the electrons continuously bring energy to a high-frequency electric field in the resonant cavity, so that the high-frequency electric field energy (namely microwave energy) in the resonant cavity is emitted out through the antenna and then transmitted to the radiator through the waveguide tube for radiation, the microwaves are radiated to the frozen soil, the frozen soil contains water and other polar molecules, the positive charges and the negative charges of the molecules are not overlapped, and the charging model of the frozen soil is equivalent to an electric dipole. Because the thermal motion of the polar molecules is disordered and the electric moment orientation of the electric dipole is disordered, the electric moment of the polar molecules is turned to an external electric field under the action of a microwave external field. If the direction of the external electric field changes, the direction of the electric moment of the polar molecules changes, and the polar molecules in the frozen soil collide with surrounding molecules to convert potential energy into heat energy.

Based on the above, in actual operation:

firstly, a power source which is easy to obtain and control hydraulic pressure is adopted, and stepless speed change control can be performed on the frozen soil fragmentation device;

secondly, the frozen soil is cracked by adopting microwave energy, under the same power consumption, the microwave cracked frozen soil is less in use time and higher in unfreezing speed, the unfreezing speed is 3-20 times of that of steam, energy is saved by 8-40 times, and the utilization rate of microwave energy is 4 times of that of infrared;

thirdly, the vehicle-mounted microwave device is adopted, so that the vehicle-mounted microwave device can be quickly moved to a frozen soil position to be cracked;

compared with the traditional blasting cracked frozen soil, the method has the characteristics of rapidness, safety, high reliability and less manual intervention;

the motion structure only has a left waveguide, and is driven by the waveguide and a rotating disc, the amplitude of the waveguide is changed by a hydraulic oil cylinder, and the rotating disc is driven by a hydraulic motor, so that the operation is simple;

and sixthly, the microwave source is cooled by adopting a cooling system, so that parameter drift of internal components caused by overheating of the microwave source is prevented, and the performance and the high reliability are ensured.

Claims (9)

1. A device for fragmentation of frozen earth, comprising a microwave radiator (8), characterized in that: the microwave radiator (8) is rotatably arranged on the upright post (3) through the multistage waveguide, the upright post (3) is fixed on the chassis (1), and the microwave source (2) is fixed on the chassis (1) and is connected to the microwave radiator (8) in a microwave transmission mode.

2. The apparatus for fragmentation of frozen earth of claim 1, wherein: the multistage waveguide is two-stage, and is respectively a right transmission waveguide (4) and a left transmission waveguide (5) which are rotatably connected with each other.

3. The apparatus for fragmentation of frozen earth of claim 1, wherein: the upright post (3) is fixed perpendicular to the chassis (1).

4. The apparatus for fragmentation of frozen earth of claim 1, wherein: the microwave radiator (8) is hung at the end of the multistage waveguide and faces downwards under the action of gravity.

5. The apparatus for fragmentation of frozen earth of claim 1, wherein: the microwave radiator (8) is positioned behind the chassis (1), and the chassis (1) is a truck chassis.

6. The apparatus for fragmentation of frozen earth of claim 2, wherein: the end part of a short hydraulic cylinder (6) can be rotationally fixed on the right transmission waveguide (4), and the other end of the short hydraulic cylinder (6) is arranged on the upright post (3).

7. The apparatus for fragmentation of frozen earth of claim 1, wherein: the end part of a long hydraulic cylinder (7) can be rotationally fixed on the left transmission waveguide (5), and the other end of the long hydraulic cylinder (7) is arranged on the upright post (3).

8. The apparatus for fragmentation of frozen earth of claim 1, wherein: the bottom of the upright post (3) is provided with a rotating disk (9).

9. The apparatus for fragmentation of frozen earth of claim 1, wherein: the microwave source (2) is provided with a cooling system (10).

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