CN212273992U

CN212273992U - Remains microwave treatment equipment with improved air inlet and outlet and air flow distribution structure

Info

Publication number: CN212273992U
Application number: CN202020899435.5U
Authority: CN
Inventors: 于洪亮; 李彪; 于海洋
Original assignee: GAOMI BLUE GULL MACHINERY TECHNOLOGY CO LTD
Current assignee: GAOMI BLUE GULL MACHINERY TECHNOLOGY CO LTD
Priority date: 2020-05-26
Filing date: 2020-05-26
Publication date: 2021-01-01
Anticipated expiration: 2030-05-26

Abstract

A remains microwave treatment facility with improved air intake and exhaust and airflow distribution structure, comprising a shell, a microwave heating chamber, a protective gas storage chamber, a flue gas purification chamber, a vacuum pump, an exhaust chamber, a refrigerator, a temperature sensor, a humidity sensor, a remains placing platform, a controller and a flow guide device which are arranged at the inner side of the shell, wherein the microwave heating chamber is provided with a microwave heater, a protective gas inlet pipe and a microwave heating chamber inlet pipe; and through the setting of parts such as each valve of controller automatic control, each electric telescopic handle, each pulley, fan, vacuum pump, refrigerator and each sensor, make the utility model discloses it is more automatic, intelligent to the processing procedure of remains.

Description

Remains microwave treatment equipment with improved air inlet and outlet and air flow distribution structure

Technical Field

The utility model relates to a remains handles environmental protection equipment technical field, specifically is a remains microwave treatment equipment with modified advances to exhaust and air current distribution structure.

Background

At present, human and animal carcasses in China each year comprise carcasses infected with epidemic diseases, dead or unknown causes of viral diseases, carcasses which are inspected to be harmful to the health of people and animals, and other carcasses which are regulated by China and need to be safely treated, the number of the carcasses is greatly increased in a short time due to epidemic outbreak and other reasons, if the carcasses cannot be treated in time or are not treated properly, serious environmental pollution can be caused, even germ diffusion and infection can be caused, and serious potential harm or direct harm can be brought to the health of human beings.

The incineration refers to that animal carcasses are directly incinerated into ash in a specific device by a high-temperature method, but a large amount of smoke gas and even dioxin are generated by incineration, so that the environmental pollution is serious, and the health and normal life of surrounding residents are seriously influenced. In addition, the distribution of the air flow within the incineration device limits the efficiency of the treatment of human and animal carcasses. Therefore, how to further improve the incineration device, improve the incineration effect, improve the treatment efficiency of the human and animal carcasses, and furthest save energy and protect environment is a problem to be solved urgently in the industry.

The above background disclosure is only provided to aid in understanding the concepts and technical solutions of the present invention, and it does not necessarily belong to the prior art of the present patent application, and it should not be used to assess the novelty and inventive step of the present application without explicit evidence that the above content has been disclosed at the filing date of the present patent application.

Disclosure of Invention

The present invention is directed to provide a remains microwave processing device with improved air intake and exhaust and air flow distribution structure to solve the above problems.

In order to achieve the above purpose, the utility model adopts the technical scheme that: a remains microwave treatment device with improved air inlet, outlet and airflow distribution structure comprises a shell, a microwave heating chamber arranged at the inner side of the shell, a protective gas storage chamber, a flue gas purification chamber, a vacuum pump, an exhaust chamber and a refrigerator, the microwave heating chamber is provided with a microwave heater, a protective gas inlet pipe and a microwave heating chamber inlet pipe, the microwave heating chamber is communicated with a protective gas storage cavity through the protective gas inlet pipe, a microwave source is connected with a refrigerator, the upper part of the microwave heating chamber is communicated with a flue gas purification cavity through a microwave heating chamber exhaust pipe, the flue gas purification cavity exhaust pipe is respectively controlled by an exhaust pipeline gas switching valve and a vacuum pipeline gas switching valve and is communicated with a vacuum protective chamber and an exhaust chamber in parallel, the temperature sensor is arranged in the microwave heating chamber, and the humidity sensor is arranged in the flue gas purification cavity exhaust pipe; the flow guide device is arranged in the microwave heating chamber and comprises a first flow guide grid, a second flow guide grid and a third flow guide grid, the second flow guide grid is arranged between the first flow guide grid and the third flow guide grid, the first flow guide grid is arranged close to an air inlet pipe of the microwave heating chamber and a protective gas inlet pipe, the second flow guide grid and the third flow guide grid are obliquely arranged relative to the upper surface of the wallboard and the remains placing platform, and the third flow guide grid is arranged close to an exhaust pipe of the microwave heating chamber; the first flow guide grid is provided with a plurality of strip-shaped first grid holes, and the openings of the first flow guide grid are uniformly distributed; the second flow guide grid is provided with a plurality of strip-shaped second grid holes, and the opening rate of the second grid holes of the second flow guide grid is distributed in a way that the upper part is small and the lower part is large; the third flow guide grid is provided with a plurality of strip-shaped third grid holes, and the opening rate of the third grid holes of the third flow guide grid is distributed in a large-scale mode and a small-scale mode.

When the microwave heating device is used specifically, the refrigerator is started to forcibly cool the microwave heater, and the microwave heater starts to heat and enters a water vapor evaporation stage. The main function of the water vapor evaporation stage is to heat the water in the remains into water vapor and discharge the water vapor. Two methods can be adopted at this stage, the first method is that the device is in a closed state, a vacuum process is adopted, and water vapor generated in the process is discharged through a vacuum pump; the second method is that the device is in an open state, an air inlet valve of the microwave heating chamber is opened, a fan in the exhaust cavity is opened, and water vapor generated in the process is discharged through the fan. The end of the stage is monitored and judged by a humidity sensor in the gas path. When the humidity of the gas in the gas path is lower than 30-50% measured by the humidity sensor, the device enters a carbonization stage.

The carbonization stage mainly has the function of carbonizing the remains, the temperature of the remains is increased to the temperature of cracking the components of the remains by absorbing microwaves in an oxygen-free state, and the cracking components mainly comprise micromolecular gas and carbon. In the process, the refrigerator starts to forcibly cool the exhaust pipe of the microwave heating chamber and the exhaust pipe of the flue gas purification chamber. The carbonization stage can adopt two methods, the first method is that the device is in a closed state, a vacuum process is adopted, and gas generated by microwave pyrolysis in the process is discharged through a vacuum pump; the second method is that the device is in an open state, an air inlet valve in the microwave heating chamber is opened, a fan in an exhaust cavity for introducing oxygen-free protective gas (such as carbon dioxide, argon, nitrogen and the like) into the microwave heating chamber is opened, and gas generated by microwave pyrolysis in the process is discharged through the fan. The end of the stage is judged by the temperature monitored and measured by a plurality of temperature sensors in the microwave heating chamber, the plurality of sensors prevent the temperature from being uneven or the individual sensors from being out of order, when any temperature reaches 300-600 ℃, the working of the stage is ended, and the device enters an ashing stage.

The main function of the ashing stage is to burn the carbon generated by carbonization into ash, so that the volume of the carbon generated in the carbonization stage can be greatly reduced and the carbon is easy to process. At the stage, the device is in an open state, an air inlet valve in the microwave heating chamber is opened, air, oxygen-enriched air or pure oxygen is filled into the microwave heating chamber, and smoke (gas generated by carbon and oxygen is mainly carbon dioxide) generated in the process is exhausted by a fan in the exhaust cavity. The end of this phase is judged by the temperature monitored and measured by the plurality of temperature sensors of the microwave heating chamber, the temperature in the microwave heating chamber gradually decreases as the carbon burns out, and the phase ends when the temperature of any one of the plurality of temperature sensors in the microwave heating chamber reaches 100 ℃.

The utility model discloses the characteristic to the remains is processed. In the first stage, water in the animal remains is heated and is quickly discharged by utilizing a vacuum or a fan; in the second stage, protein and the like in the animal remains are heated, the remains can be heated to the high-temperature for cracking by microwaves in an oxygen-free state, and the generated gas is quickly discharged by a vacuum pump or a fan; in the third stage, the residual carbon from the high-temperature cracking is subjected to aerobic combustion, and only carbon is combusted in the process, so that harmful gas is not generated; the generated carbon-oxygen compound gas is quickly discharged through the fan, and the fan plays a role in cooling.

The aperture ratio of the second grid holes of the second flow guide grid is in uneven distribution with small top and large bottom, the upper part has large resistance to air flow, the lower part has small resistance to air flow, and the upper part of the second flow guide grid is obliquely arranged close to the first flow guide grid so as to guide air to the lower part of the second flow guide grid, so that most of air flows to the lower part of the second flow guide grid and flows out through the second grid holes of the second flow guide grid, and downward-inclined air flow flowing towards remains on the remains placing platform is formed.

The aperture ratio of the third grid holes of the third flow guide grid is unevenly distributed, the upper part has small resistance to the air flow, the lower part has large resistance to the air flow, and the inclined third flow guide grid can guide the air flow from the lower part of the third flow guide grid to the upper part of the third flow guide grid because the upper part (the first area of the third flow guide grid) of the third flow guide grid is close to the exhaust pipe of the microwave heating chamber, so that most of the air flows to the upper part of the third flow guide grid and flows out through the third grid holes of the first area of the third flow guide grid to form the upward inclined air flow flowing towards the exhaust pipe of the microwave heating chamber, and the upward inclined air flow flowing towards the exhaust pipe of the microwave heating chamber is favorably discharged through the exhaust pipe of the.

The utility model can optimize the air flow distribution in the microwave heating chamber by arranging the flow guide device, which is helpful to improve the treatment efficiency of the remains; and through the setting of parts such as each valve of controller automatic control, each electric telescopic handle, each pulley, fan, vacuum pump, refrigerator and each sensor, make the utility model discloses it is more automatic, intelligent to the processing procedure of remains.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic structural diagram of a remains microwave processing device with an improved air intake and exhaust and air flow distribution structure according to a preferred embodiment of the present invention;

FIG. 2 is a schematic side view of the first air fence of FIG. 1;

FIG. 3 is a schematic side view of the second flow fence of FIG. 1;

FIG. 4 is a schematic side view of the third air fence of FIG. 1;

in the figure: a microwave heating chamber 10; a microwave heating chamber exhaust pipe 11; a microwave heater 12; an opening 13; a microwave heating chamber air inlet pipe valve 14; a microwave heating chamber inlet duct 142; a wall panel 15; a shielding gas storage chamber 20; a shielding gas inlet pipe 21; a shielding gas storage chamber vent valve 22; a flue gas cleaning chamber 30; a flue gas cleaning chamber exhaust pipe 31; an exhaust line gas switching valve 33; a vacuum line gas switching valve 35; a refrigerator 40; a refrigerant pipe 42; a vacuum pump 50; an exhaust chamber 60; a temperature sensor 70; a humidity sensor 80; a remains placement platform 90; a first electric telescopic rod 92; a first pulley 94; a slide rail 96; a vibration block 98; a controller 100; a housing 110; a deflector 120; a first flow fence 122; a first gate hole 123; a second flow fence 124; a second air fence first area 1241; a second air guide grid second area 1242; a second flow grid area 1243; a second gate hole 125; a third flow fence 126; a third flow fence first region 1261; a third flow grid second region 1262; a third flow grid section 1263; and a third gate hole 127.

Detailed Description

The invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic drawings and illustrate, by way of illustration only, the basic structure of the invention, and which therefore show only the constituents relevant to the invention.

As shown in fig. 1, a preferred embodiment of the present invention provides a remains microwave processing apparatus with an improved air intake, exhaust and air flow distribution structure, which comprises a casing 110, a microwave heating chamber 10 disposed inside the casing 110, a shielding gas storage chamber 20, a flue gas purification chamber 30, a refrigerator 40, a vacuum pump 50, an exhaust chamber 60, a temperature sensor 70, a humidity sensor 80, a remains placing platform 90, a controller 100, and a flow guide device 120.

The wall plate 15 is arranged in the microwave heating chamber 10, the microwave heater 12 is arranged on the wall plate 15, the microwave heater 12 conducts heat and dries quickly, microwaves generated by the microwave heater 12 can penetrate all cells including virus cells, the cells are heated and implosively broken, water and fat in the cells are separated, and the purpose of killing viruses is achieved at the same time. The microwave heater 12 is connected to the refrigerator 40 through a refrigerating pipe 42.

The microwave heating chamber 10 is communicated with the protective gas storage cavity 20 through a protective gas inlet pipe 21, the microwave heating chamber 10 is communicated with the flue gas purification cavity 30 through a microwave heating chamber exhaust pipe 11, and the flue gas purification cavity exhaust pipe 31 is controlled by an exhaust pipeline gas switching valve 33 and a vacuum pipeline gas switching valve 35 respectively to be communicated with a vacuum pump 50 and an exhaust cavity 60 in parallel. The temperature sensor 70 is arranged in the microwave heating chamber 10, and the humidity sensor 80 is arranged in the exhaust pipe 31 of the flue gas purification chamber. The controller 100 is connected with the temperature sensor 70 and the humidity sensor 80, and pneumatically controls the opening and closing of each valve, the controller 100 can control the opening and closing of the LED lamp strip 113, and can also switch between an alternating current power supply and the solar cell panel 111 to provide electricity for the remains microwave treatment equipment with the improved air inlet and outlet and air flow distribution structure. The temperature sensor 70 and the humidity sensor 80 transmit the detected temperature value and humidity value to the controller 100.

The upper portion of a first electric telescopic rod 92 is placed or connected with the remains placing platform 90, a first pulley 94 is fixedly connected with the lower portion of the first electric telescopic rod 92, a sliding rail 96 is arranged below the microwave heating chamber 10, the first pulley 94 is driven by a motor to rotate, the first pulley 94 can slide along the sliding rail 96 so as to convey the remains placing platform 90 to the lower portion of the microwave heating chamber 10, the first electric telescopic rod 92 can lift the remains placing platform 90 up and down, an opening 13 is formed in the bottom surface of the microwave heating chamber 10, gas sealing strips and microwave leakage-proof sealing strips are arranged on the peripheral side walls of the remains placing platform 90, and the remains placing platform 90 can be in sealing fit with the opening 13 of the microwave heating chamber 10.

In the above embodiment, the cavity wall of the microwave heating chamber 10 is made of a metal material, the remains placing platform 90 is made of a metal material, the inner side and the outer side of the cavity wall are provided with heat insulating layers, at least one side of 5 wall surfaces on the metal cavity wall is provided with the microwave heater 12 with air tightness, the heat insulating layer is made of at least one layer of heat insulating material with a low dielectric constant, the innermost layer of the cavity of the microwave heating chamber 10 is made of a ceramic or quartz material, the microwave heater 12 is provided with the rectangular waveguide with the O-ring, and the waveguide.

The deflector 120 is installed in the microwave heating chamber 10, and the deflector 120 includes a first deflector grid 122, a second deflector grid 124 and a third deflector grid 126. The second air fence 124 is located between the first air fence 122 and the third air fence 126 and is disposed to be inclined closer to the first air fence 122.

The first flow guiding grid 122 is perpendicular to the wall plate 15 and is disposed near the microwave heating chamber air inlet pipe 142 and the shielding gas inlet pipe 21. Specifically, the upper end of the first air guiding grid 122 is connected to the wall plate 15, and the lower end of the first air guiding grid 122 is connected to the inner wall of the bottom of the microwave heating chamber 10.

The second air guiding grid 124 and the third air guiding grid 126 are disposed obliquely relative to the wall plate 15 and the upper surface of the remains placing platform 90. The third baffle grid 126 is disposed adjacent to the microwave heating chamber exhaust duct 11. The upper ends of the second flow guiding grid 124 and the third flow guiding grid 126 are connected with the wall plate 15, and the lower ends of the second flow guiding grid 124 and the third flow guiding grid 126 are abutted against the upper surface of the remains placing platform 90. Specifically, the lower end of the second air fence 124 abuts against the left end of the upper surface of the remains placement platform 90, and the lower end of the third air fence 126 abuts against the right end of the upper surface of the remains placement platform 90.

As shown in fig. 2, the first flow guiding grid 122 is provided with a plurality of strip-shaped first grid holes 123, the openings of the first flow guiding grid 122 are uniformly distributed, and the opening ratio is 55% to 75%.

After turbulent airflow (the arrows in fig. 1 indicate airflow distribution) flowing out of the microwave heating chamber air inlet pipe 142 or the valve control protective gas inlet pipe 21 passes through the first grid holes 123 of the first flow guiding grid 122, the airflow can realize uniform flow.

As shown in fig. 3, the second flow guiding grid 124 is provided with a plurality of second grid holes 125. The second air fence 124 includes a first air fence area 1241, a second air fence area 1242 and a second air fence area 1243 which are uniformly distributed from top to bottom. The aperture ratio of the second gate holes 125 of the second air guide grid first area 1241 is 10% -25%, the aperture ratio of the second gate holes 125 of the second air guide grid second area 1242 is 20% -35%, and the aperture ratio of the second gate holes 125 of the second air guide grid third area 1243 is 55% -75%.

The aperture ratio of the second grid holes 125 of the second air fence 124 is unevenly distributed with a small top and a large bottom, the upper portion has large resistance to the air flow, the lower portion has small resistance to the air flow, and the upper portion of the second air fence 124 is arranged close to the first air fence 122 in an inclined manner to guide the air flow to the lower portion of the second air fence 124, so that most of the air flow flows to the lower portion of the second air fence 124 and flows out through the second grid holes 125 of the second air fence three areas 1243, and downward-inclined air flow flowing towards the remains on the remains placement platform 90 is formed.

As shown in fig. 4, the third air guiding grid 126 is provided with a plurality of elongated third grid holes 127. The third flow grid 126 comprises a first flow grid region 1261, a second flow grid region 1262 and a third flow grid region 1263 which are uniformly distributed from top to bottom. The aperture ratio of the third gate holes 127 of the third flow grid first region 1261 is 55% to 75%, the aperture ratio of the third gate holes 127 of the third flow grid second region 1262 is 20% to 35%, and the aperture ratio of the third gate holes 127 of the third flow grid third region 1263 is 10% to 25%. The third baffle grid first region 1261 faces and is close to the microwave heating chamber exhaust pipe 11.

The aperture ratio of the third grid holes 127 of the third flow guiding grid 126 is unevenly distributed with a large upper portion and a small lower portion, the upper portion has small resistance to the airflow, the lower portion has large resistance to the airflow, and since the upper portion (the first region 1261) of the third flow guiding grid 126 is disposed close to the microwave heating chamber exhaust pipe 11, the inclined third flow guiding grid 126 can guide the airflow from the lower portion of the third flow guiding grid 126 to the upper portion of the third flow guiding grid 126, so that most of the airflow flows to the upper portion of the third flow guiding grid 126 and flows out through the third grid holes 127 of the first region 1261, and an upward inclined airflow flowing towards the microwave heating chamber exhaust pipe 11 is formed, thereby facilitating the timely exhaust of the airflow through the microwave heating chamber exhaust pipe 11.

Optionally, a plurality of grooves are formed on the upper surface of the remains placing platform 90 at intervals, and the plurality of vibration blocks 98 are correspondingly fixed in the plurality of grooves.

The method for treating the remains by the remains microwave treatment equipment with the improved air inlet and outlet and air flow distribution structure comprises the following steps:

(1) and (3) water vapor evaporation stage: the controller 100 controls the first pulley 94 to slide along the slide rail 96, so that the remains placing platform 90 is moved to a position right below the microwave heating chamber 10, and then controls the electric telescopic rod 92 to stretch and contract, so that the remains placing platform 90 is in sealing fit with the opening 13 of the microwave heating chamber 10; then the controller 100 controls the refrigerator 40 to start, the refrigerator 40 performs forced cooling on the microwave heater 12, the microwave heater 12 starts, the microwave heater 12 is kept lower than 60 ℃, the microwave heating chamber air inlet pipe valve 14 on the microwave heating chamber air inlet pipe 142 is closed, the protective gas storage cavity exhaust valve 22 is kept closed, the vacuum pipeline gas switching valve 35 is opened, the exhaust pipeline gas switching valve 33 is closed, the exhaust cavity 60 is closed, the vacuum pump 50 is opened, and exhaust is performed through the vacuum pump 50; or the air inlet pipe valve 14 of the microwave heating chamber is opened, the exhaust valve 22 of the protective gas storage chamber is kept closed, the vacuum pipeline gas switching valve 35 is closed, the exhaust pipeline gas switching valve 33 is opened, the exhaust chamber 60 is opened, the vacuum pump 50 is closed, and the air is exhausted by the fan in the exhaust chamber 60;

in the above-mentioned water vapor evaporation stage, because the aperture ratio of the second grid holes 125 of the second air guiding grid 124 is uneven distribution with small top and large bottom, the upper portion has large resistance to the air flow flowing out from the air inlet pipe 142 of the microwave heating chamber, and the lower portion has small resistance to the air flow, and because the upper portion of the second air guiding grid 124 is disposed close to the first air guiding grid 122 in an inclined manner, the air can be guided to the lower portion of the second air guiding grid 124, so that most of the air flowing out from the air inlet pipe 142 of the microwave heating chamber flows to the lower portion of the second air guiding grid 124 and flows out through the second grid holes 125 of the third air guiding grid area 1243, so as to form a downward-inclined air flow flowing towards the remains on the remains placement platform 90, and to timely drive away the water vapor generated;

in addition, because the aperture ratio of the third grid holes 127 of the third flow guiding grid 126 is unevenly distributed, the upper portion has small resistance to the air and water vapor flow, and the lower portion has large resistance to the air and water vapor flow, and because the upper portion (the third flow guiding grid first region 1261) of the third flow guiding grid 126 is disposed close to the microwave heating chamber exhaust pipe 11, the inclined third flow guiding grid 126 can guide the air and water vapor flow from the lower portion of the third flow guiding grid 126 to the upper portion of the third flow guiding grid 126, so that most of the air and water vapor flow flows to the upper portion of the third flow guiding grid 126 and flows out through the third grid holes 127 of the third flow guiding grid first region 1261, and an upward inclined air and water vapor flow flowing towards the microwave heating chamber exhaust pipe 11 is formed, thereby facilitating timely exhausting the air and water vapor flow through the microwave heating chamber exhaust pipe 11.

(2) And (3) carbonization: when the humidity sensor 80 senses that the humidity of the gas in the gas path is lower than 30-50%, entering a carbonization stage, starting forced cooling of the microwave heating chamber exhaust pipe 11 and the flue gas purification cavity exhaust pipe 31 by the refrigerator 40 to enable the temperature to be lower than 40 ℃, closing the microwave heating chamber gas inlet pipe valve 14, opening the vacuum pipeline gas switching valve 35, closing the exhaust pipeline gas switching valve 33, closing the exhaust cavity 60, opening the vacuum pump 50, and exhausting through the vacuum pump 50; or the gas inlet pipe valve 14 of the microwave heating chamber is opened, the exhaust valve 22 of the protective gas storage cavity is opened, oxygen-free protective gas is introduced into the microwave heating chamber 10, the vacuum pipeline gas switching valve 35 is closed, the exhaust pipeline gas switching valve 33 is opened, the exhaust cavity 60 is opened, the vacuum pump 50 is closed, and exhaust is carried out through the fan in the exhaust cavity 60;

in the carbonization step, since the aperture ratio of the second grid holes 125 of the second flow guiding grid 124 is unevenly distributed with a small upper part and a large lower part, the upper part has a large resistance to the air flow flowing out of the microwave heating chamber air inlet pipe 142 and the oxygen-free shielding gas flow (carbon dioxide, argon, nitrogen, etc.) flowing out of the shielding gas inlet pipe 21, the lower part has a small resistance to the air flow and the oxygen-free shielding gas flow, and since the upper portion of the second flow guiding grid 124 is disposed near the first flow guiding grid 122 in an inclined manner to guide the air flow and the oxygen-free shielding gas to the lower portion of the second flow guiding grid 124, thus, most of the air flow and the oxygen-free protective gas flow to the lower part of the second flow guide grid 124 and flow out through the second grid holes 125 of the second flow guide grid three zone 1243 to form downward-inclined air flow and oxygen-free protective gas flow flowing towards the remains on the remains placing platform 90, and the remains are timely driven away to absorb the small molecular gas generated by microwave pyrolysis;

in addition, since the aperture ratio of the third grid holes 127 of the third flow guiding grid 126 is unevenly distributed with a large upper portion and a small lower portion, the upper portion has small resistance to the flow of the air, the oxygen-free shielding gas and the small molecule gas, and the lower portion has large resistance to the flow of the air, the oxygen-free shielding gas and the small molecule gas, and since the upper portion of the third flow guiding grid 126 (the third flow guiding grid first region 1261) is disposed close to the microwave heating chamber exhaust pipe 11, the inclined third flow guiding grid 126 can guide the flow of the air, the oxygen-free shielding gas and the small molecule gas from the lower portion of the third flow guiding grid 126 to the upper portion of the third flow guiding grid 126, so that most of the air, the oxygen-free shielding gas and the small molecule gas flow toward the upper portion of the third flow guiding grid 126 and flow out through the third grid holes 127 of the third flow guiding grid first region 1261 to form the flow of the air, the oxygen-free, the air, the oxygen-free protective gas and the small molecule gas flow can be discharged through the exhaust pipe 11 of the microwave heating chamber in time.

(3) And (3) an ashing stage: when the temperature sensor 70 detects that the temperature in the microwave heating chamber 10 reaches 600 ℃, the ashing stage is carried out, the microwave heating chamber air inlet pipe valve 14 is opened, air or rich oxygen or pure oxygen is filled into the microwave heating chamber 10, the protective gas storage chamber exhaust valve 22 is kept closed, the vacuum pipeline gas switching valve 35 is closed, the exhaust pipeline gas switching valve 33 is opened, the exhaust cavity 60 is opened, the vacuum pump 50 is closed, exhaust is carried out through the fan in the exhaust cavity 60, and when the temperature sensor 70 detects that the temperature in the microwave heating chamber 10 is reduced to 100 ℃, the ashing stage is ended.

In the above ashing stage, since the aperture ratio of the second grid holes 125 of the second flow guiding grid 124 is unevenly distributed with a small upper part and a large lower part, the upper part has a large resistance to the air, oxygen-enriched or pure oxygen flowing out from the air inlet pipe 142 of the microwave heating chamber, and the lower part has a small resistance to the air, oxygen-enriched or pure oxygen flowing out, and since the upper part of the second flow guiding grid 124 is arranged near the first flow guiding grid 122 in an inclined manner, the air, oxygen-enriched or pure oxygen can be guided to the lower part of the second flow guiding grid 124, so that most of the air, oxygen-enriched or pure oxygen flows out to the lower part of the second flow guiding grid 124 and flows out through the second grid holes 125 of the second flow guiding grid three zones 1243, and a downward-inclined air, oxygen-enriched or pure oxygen flowing towards the carbonized remains on the remains placement platform 90 is formed;

in addition, since the aperture ratio of the third grid holes 127 of the third flow guiding grid 126 is unevenly distributed with the upper portion larger than the lower portion, the resistance of the upper portion to the carbon dioxide gas flow is small, and the resistance of the lower portion to the carbon dioxide gas flow is large, and since the upper portion (the third flow guiding grid first region 1261) of the third flow guiding grid 126 is disposed close to the microwave heating chamber exhaust pipe 11, the inclined third flow guiding grid 126 can guide the carbon dioxide gas flow from the lower portion of the third flow guiding grid 126 to the upper portion of the third flow guiding grid 126, so that most of the carbon dioxide gas flow flows to the upper portion of the third flow guiding grid 126 and flows out through the third grid holes 127 of the third flow guiding grid first region 1261, and an upwardly inclined carbon dioxide gas flow flowing towards the microwave heating chamber exhaust pipe 11 is formed, thereby facilitating timely exhausting the carbon dioxide gas.

The above descriptions of the embodiments of the present invention that are not related to the present invention are well known in the art, and can be implemented by referring to the well-known technologies.

In light of the foregoing, it is to be understood that various changes and modifications may be made by those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. A remains microwave treatment equipment with improved air inlet and outlet and air flow distribution structure is characterized in that: the microwave heating chamber is communicated with the protective gas storage chamber through the protective gas inlet pipe, the microwave source is connected with the refrigerator, the upper part of the microwave heating chamber is communicated with the smoke purification chamber through a microwave heating chamber exhaust pipe, the smoke purification chamber exhaust pipe is respectively controlled by an exhaust pipe gas switching valve and a vacuum pipe gas switching valve to be communicated with the vacuum protective chamber and the exhaust chamber in parallel, the temperature sensor is arranged in the microwave heating chamber, and the humidity sensor is arranged in the smoke purification chamber exhaust pipe; the flow guide device is arranged in the microwave heating chamber and comprises a first flow guide grid, a second flow guide grid and a third flow guide grid, the second flow guide grid is arranged between the first flow guide grid and the third flow guide grid, the first flow guide grid is arranged close to an air inlet pipe of the microwave heating chamber and a protective gas inlet pipe, the second flow guide grid and the third flow guide grid are obliquely arranged relative to the upper surface of the wallboard and the remains placing platform, and the third flow guide grid is arranged close to an exhaust pipe of the microwave heating chamber; the first flow guide grid is provided with a plurality of strip-shaped first grid holes, and the openings of the first flow guide grid are uniformly distributed; the second flow guide grid is provided with a plurality of strip-shaped second grid holes, and the opening rate of the second grid holes of the second flow guide grid is distributed in a way that the upper part is small and the lower part is large; the third flow guide grid is provided with a plurality of strip-shaped third grid holes, and the opening rate of the third grid holes of the third flow guide grid is distributed in a large-scale mode and a small-scale mode.

2. The apparatus for microwave treatment of remains with improved air intake and exhaust and air flow distribution structure according to claim 1, wherein: the controller is connected with the temperature sensor and the humidity sensor and pneumatically controls the opening and closing of the valves.

3. The apparatus for microwave treatment of remains with improved air intake and exhaust and air flow distribution structure according to claim 1 or 2, wherein: the remains placing platform is placed or connected to the upper portion of the electric telescopic handle, a first pulley is fixedly connected to the lower portion of the electric telescopic handle, a slide rail is arranged below the microwave heating chamber, the first pulley on the lower portion of the electric telescopic handle can slide along the slide rail, the first electric telescopic handle can convey the remains placing platform to the bottom of the microwave heating chamber, the bottom surface of the microwave heating chamber is provided with an opening, gas sealing strips and microwave leakage-preventing sealing strips are arranged on the peripheral side wall of the remains placing platform, and the remains placing platform can be in sealing fit with the opening of the microwave heating chamber.

4. The apparatus for microwave treatment of remains with improved air intake and exhaust and air flow distribution structure according to claim 1 or 2, wherein: the wall of the microwave heating chamber is made of metal materials, the remains placing platform is made of metal materials, heat insulation layers are arranged on the inner side and the outer side of the wall of the microwave heating chamber, and at least one surface of a plurality of walls on the wall of the metal chamber is provided with a microwave heater with air tightness.

5. The apparatus for microwave treatment of remains with improved air intake and exhaust and air flow distribution structure according to claim 4, wherein: the microwave heating chamber is characterized in that the heat insulation layer is at least made of a layer of heat insulation material with a low dielectric constant, the innermost layer of the microwave heating chamber is made of ceramic or quartz material, the microwave heater is provided with a rectangular waveguide with an O-shaped ring, and the waveguide sealing material is made of ceramic or quartz.

6. The apparatus for microwave treatment of remains with improved air intake and exhaust and air flow distribution structure according to claim 1, wherein: a plurality of grooves are formed in the upper surface of the remains placing platform at intervals, and a plurality of vibration blocks are correspondingly fixed in the grooves.

7. The apparatus for microwave treatment of remains with improved air intake and exhaust and air flow distribution structure according to claim 1, wherein: the wall plate is provided with the microwave heater, the upper end of the first flow guide grid is connected with the wall plate, the lower end of the first flow guide grid is connected with the inner wall of the bottom of the microwave heating chamber, the upper ends of the second flow guide grid and the third flow guide grid are connected with the wall plate, and the lower ends of the second flow guide grid and the third flow guide grid are abutted against the upper surface of the remains placing platform.

8. The apparatus for microwave treatment of remains with improved air intake and exhaust and air flow distribution structure according to claim 1, wherein: the aperture ratio of the first flow guide grid is 55-75%; the second flow guide grid comprises a first flow guide grid area, a second flow guide grid area and a second flow guide grid area which are uniformly distributed from top to bottom, the aperture ratio of second grid holes in the first flow guide grid area is 10% -25%, the aperture ratio of second grid holes in the second flow guide grid area is 20% -35%, and the aperture ratio of second grid holes in the second flow guide grid area is 55% -75%; the third flow guide grid comprises a first third flow guide grid area, a second third flow guide grid area and a third flow guide grid area which are uniformly distributed from top to bottom, the aperture ratio of third grid holes in the first third flow guide grid area is 55% -75%, the aperture ratio of third grid holes in the second third flow guide grid area is 20% -35%, the aperture ratio of third grid holes in the third flow guide grid area is 10% -25%, and the first third flow guide grid area is right opposite to and close to the exhaust pipe of the microwave heating chamber.