CN115121597B - Vehicle-mounted van-type continuous microwave soil solid waste treatment equipment - Google Patents
Vehicle-mounted van-type continuous microwave soil solid waste treatment equipment Download PDFInfo
- Publication number
- CN115121597B CN115121597B CN202210758469.6A CN202210758469A CN115121597B CN 115121597 B CN115121597 B CN 115121597B CN 202210758469 A CN202210758469 A CN 202210758469A CN 115121597 B CN115121597 B CN 115121597B
- Authority
- CN
- China
- Prior art keywords
- nitrogen
- soil
- reaction bin
- purging
- treatment device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/06—Reclamation of contaminated soil thermally
- B09C1/065—Reclamation of contaminated soil thermally by pyrolysis
Abstract
The application provides vehicle-mounted van-type continuous microwave soil solid waste treatment equipment, which belongs to the technical field of soil remediation equipment, and comprises a soil treatment device and a nitrogen protection device, wherein the soil treatment device is provided with a reaction bin for treating organic matter polluted soil by microwaves, the reaction bin is communicated with a tail gas treatment system, and two ends of the reaction bin are respectively provided with a feed inlet and a discharge outlet which are suitable for the inlet and the outlet of polluted soil; the nitrogen protection device is provided with a nitrogen discharge pipe which is suitable for being communicated with the reaction bin, and is used for conveying nitrogen into the reaction bin, and the conveyed nitrogen forms an air curtain in the reaction bin so as to reduce the oxygen content in the reaction bin. The vehicle-mounted van-type continuous microwave soil solid waste treatment equipment provided by the application solves the technical problem that organic waste gas generated in the treatment process of soil polluted by organic matters is easy to explode, has the technical effects of reducing the oxygen content after nitrogen is input into a reaction bin, preventing external oxygen from entering the reaction bin by an air curtain, and effectively preventing the organic gas from exploding.
Description
Technical Field
The application belongs to the technical field of soil remediation equipment, and particularly relates to vehicle-mounted van-type continuous microwave soil solid waste treatment equipment.
Background
At present, main pollutants of the soil of a chemical polluted site comprise various volatile/semi-volatile organic matters, phosphorus-containing organic matters, nitrogen-containing organic matters and the like, and the polluted soil needs to be treated in order to meet the environmental protection requirement. In the prior art, the thermal desorption equipment is large fixed equipment, so that the thermal desorption equipment is inconvenient to move and cannot realize movable operation, and the mode of heating and removing pollutants to soil by the thermal desorption equipment can cause the change of a soil structure and prevent the soil pollutant from removing effect, so that the pollutants in the inner layer of the soil are subjected to high-temperature pyrolysis, and the desorption treatment of organic pollutants is not facilitated. In addition, organic waste gas can be generated in the soil treatment process polluted by organic matters, the organic waste gas belongs to inflammable and explosive gas, and when the reaction bin is provided with oxygen and the oxygen content reaches explosion conditions, the organic waste gas is easy to generate high-temperature explosion in the reaction bin, so that the equipment safety is seriously influenced.
Disclosure of Invention
The application aims to provide vehicle-mounted van-type continuous microwave soil solid waste treatment equipment, which aims to solve the technical problem that organic waste gas generated in the treatment process of soil polluted by organic matters is easy to explode.
In order to achieve the above purpose, the application adopts the following technical scheme: the utility model provides a on-vehicle van-type continuous microwave soil solid useless treatment facility, include:
the soil treatment device is provided with a reaction bin for treating organic matter polluted soil by microwaves, the reaction bin is communicated with the tail gas treatment system, and two ends of the reaction bin are respectively provided with a feed inlet and a discharge outlet which are suitable for the entry and exit of the polluted soil; and
the nitrogen protection device is provided with a nitrogen discharge pipe which is suitable for being communicated with the reaction bin, and is used for conveying nitrogen to the inside of the reaction bin, and the conveyed nitrogen forms an air curtain in the reaction bin so as to reduce the oxygen content in the reaction bin.
In a possible implementation manner, the vehicle-mounted van-type continuous microwave soil solid waste treatment device further comprises two groups of nitrogen protection partition boxes which are respectively arranged at the feed inlet and the discharge outlet, the inside of each nitrogen protection partition box is hollow, the nitrogen protection partition boxes are provided with material ports suitable for the entry and the exit of soil along the entry and exit direction of soil, the material ports are aligned with the feed inlet or the discharge outlet, a first nitrogen purging pipe is connected inside each nitrogen protection partition box, and the first nitrogen purging pipe is communicated with the nitrogen protection device and conveys nitrogen to the inside of each nitrogen protection partition box.
In one possible implementation manner, a first oxygen sensor is connected in the reaction bin, the first oxygen sensor is electrically connected with the soil treatment device, the soil treatment device is electrically connected with the nitrogen protection device, and the soil treatment device controls the nitrogen conveying amount of the nitrogen protection device according to the oxygen content monitored by the first oxygen sensor.
In one possible implementation manner, the nitrogen protection device comprises at least one group of nitrogen generators, one end of the nitrogen discharge pipe is communicated with the nitrogen output end of each nitrogen generator, the other end of the nitrogen discharge pipe is communicated with the reaction bin, and the reaction bin is in a positive pressure state in the process of conveying nitrogen.
In one possible implementation, the nitrogen protection device further comprises a power supply electrically connected to the nitrogen generator, the power supply being adapted to supply power to the nitrogen generator and being chargeable and dischargeable.
In a possible implementation manner, second oxygen sensors are uniformly distributed at the feed inlet and the discharge outlet, the second oxygen sensors are used for monitoring the oxygen content at the feed inlet and the discharge outlet, the second oxygen sensors are electrically connected with the soil treatment device, and the soil treatment device controls the nitrogen conveying amount of the nitrogen protection device according to the oxygen content monitored by the second oxygen sensors.
In a possible implementation manner, the reaction bin inner wall is rotationally connected with a rotating shaft, the rotating shaft is connected with a blowing rod of a hollow structure, the reaction bin inner wall is provided with a driver for driving the rotating shaft to rotate, a power output end of the driver is connected with the rotating shaft, the blowing rod swings in a fan shape and the swinging surface is in a vertical plane, the blowing rod is connected with a second nitrogen blowing pipe, and the second nitrogen blowing pipe is communicated with the nitrogen protection device and swings with the help of the blowing rod to blow nitrogen in a fan shape in the reaction bin.
In one possible implementation mode, the inner wall of the reaction bin is connected with an arc-shaped sliding rail, the middle part of the purging rod is connected with a sliding block, the sliding block is slidably connected with the arc-shaped sliding rail, and the purging rod is connected with a limiting part which is suitable for being abutted against the arc-shaped sliding rail.
In one possible implementation manner, one end of the purging rod is connected with the rotating shaft, the other end of the purging rod is a free end, a penetrating opening is formed in the position, close to the rotating shaft, of the purging rod, a penetrating opening is formed in the free end of the purging rod, one end of the second nitrogen purging pipe penetrates from the penetrating opening and penetrates from the penetrating opening, a nitrogen output end of the second nitrogen purging pipe is connected with a gas tap, and the gas tap is suitable for conveying nitrogen into the reaction bin.
In one possible implementation, the purge rod is a telescoping member and has the freedom to telescope toward the middle of the reaction cartridge.
The vehicle-mounted van-type continuous microwave soil solid waste treatment equipment provided by the application has the beneficial effects that: compared with the prior art, the vehicle-mounted van-type continuous microwave soil solid waste treatment equipment comprises a soil treatment device and a nitrogen protection device, wherein the soil treatment device is provided with a reaction bin for microwave treatment of organic matter polluted soil, the reaction bin is communicated with a tail gas treatment system, and two ends of the reaction bin are respectively provided with a feed inlet and a discharge outlet which are suitable for the entry and the exit of polluted soil; the nitrogen protection device is provided with a nitrogen discharge pipe which is suitable for being communicated with the reaction bin, the nitrogen protection device is used for conveying nitrogen into the reaction bin, the conveyed nitrogen forms an air curtain in the reaction bin so as to reduce the oxygen content in the reaction bin, the technical problem that organic waste gas generated in the treatment process of organic matter polluted soil is easy to explode is solved, the nitrogen protection device has the technical effects that the oxygen content is reduced after nitrogen is input into the reaction bin, the air curtain can prevent external oxygen from entering the reaction bin, and the explosion of the organic gas is effectively prevented.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments or the description of the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic perspective view of a vehicle-mounted van-type continuous microwave soil solid waste treatment device according to an embodiment of the present application;
fig. 2 is a schematic diagram of a front view structure of a vehicle-mounted van-type continuous microwave soil solid waste treatment device according to an embodiment of the present application;
fig. 3 is a schematic diagram of a front view structure of a reaction bin and two sets of nitrogen protection partition boxes of a vehicle-mounted van-type continuous microwave soil solid waste treatment device provided by an embodiment of the application;
fig. 4 is a schematic structural diagram of a reaction bin of a vehicle-mounted van-type continuous microwave soil solid waste treatment device according to an embodiment of the present application;
fig. 5 is a schematic diagram of a reaction bin part inner wall structure of a vehicle-mounted van-type continuous microwave soil solid waste treatment device according to another embodiment of the present application;
fig. 6 is a schematic diagram of the inner wall structure of a reaction bin portion of a vehicle-mounted van-type continuous microwave soil solid waste treatment apparatus according to another embodiment of the present application (before a second nitrogen purge tube is not installed);
FIG. 7 is a schematic structural view of a modified embodiment of the purge rod of FIG. 5 or FIG. 6.
Reference numerals illustrate:
10. a soil treatment device; 11. a reaction bin; 12. a first oxygen sensor; 13. a second oxygen sensor; 20. a nitrogen protection device; 21. a nitrogen gas discharge pipe; 30. a nitrogen protection partition box; 31. a material port; 32. a first nitrogen purge tube; 40. a rotating shaft; 50. a purge rod; 51. a slide block; 52. a penetration port; 53. a through outlet; 60. a driver; 70. a second nitrogen purge tube; 71. an air tap; 80. an arc slide rail.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.
Referring to fig. 1 to 7, the vehicle-mounted van-type continuous microwave soil solid waste treatment device provided by the application will now be described. The vehicle-mounted van-type continuous microwave soil solid waste treatment equipment comprises a soil treatment device 10 and a nitrogen protection device 20, wherein the soil treatment device 10 is provided with a reaction bin 11 for microwave treatment of organic matter polluted soil, the reaction bin 11 is communicated with a tail gas treatment system, and two ends of the reaction bin 11 are respectively provided with a feed inlet and a discharge outlet which are suitable for the entry and the exit of the polluted soil; the nitrogen protection device 20 is provided with a nitrogen discharge pipe 21 which is suitable for being communicated with the reaction chamber 11, the nitrogen protection device 20 is used for conveying nitrogen into the reaction chamber 11, and the conveyed nitrogen forms an air curtain in the reaction chamber 11 so as to reduce the oxygen content in the reaction chamber 11.
Compared with the prior art, the vehicle-mounted van-type continuous microwave soil solid waste treatment equipment provided by the application has the technical effects that the nitrogen is introduced into the reaction bin 11, the oxygen content is reduced after the nitrogen is mixed with the oxygen, the technical problem that organic waste gas generated in the treatment process of organic matter polluted soil is easy to explode is solved, the oxygen content is reduced after the nitrogen is introduced into the reaction bin 11, the air curtain can prevent external oxygen from entering the reaction bin 11, and the explosion of the organic gas is effectively prevented.
The vehicle-mounted van-type continuous microwave soil solid waste treatment equipment provided by the application is characterized in that soil is continuous in the treatment process, namely, soil input-soil treatment-soil output is continuous operation, compared with discontinuous or closed type soil, continuous operation is performed, when the soil is in contact with the outside air in the treatment process, oxygen in the air enters a reaction bin for continuous operation, and the oxygen is mixed with organic waste gas generated in the treatment process to explode, so that a nitrogen protection device 20 is required to be arranged in the application, nitrogen is filled into the reaction bin 11, the oxygen content in the reaction bin 11 is reduced, and the explosion of the organic waste gas is effectively prevented.
The microwave power in the soil treatment apparatus 10 was 75KW, and the use was: the method is suitable for thermal desorption treatment of polluted soil, the soil is required to be pre-crushed and sieved, the granularity is less than 10mm, a chain plate type conveying mechanism is used for conveying the soil, the highest temperature is resistant to 800 ℃, and the general use temperature range is 0-500 ℃.
The service environment of the device is as follows: the input power supply is three-phase, 380V (10% variation range), 50Hz; the distribution power is more than 105KW, and the device is applicable to flammable, explosive and corrosive gases, and accessories of the device comprise a moisture removal fan and a pipeline. The ambient temperature is-5-40 ℃ and the relative humidity is less than or equal to 80 percent.
Two groups of microwave suppressors are arranged in the soil treatment device 10, are respectively arranged at two ports of the reaction bin 11 and are made of stainless steel, the length is 1.5 meters, the table top lengths of the feed inlet and the discharge outlet are 0.7 meter, and the leakage prevention mode of the microwave suppressors is an inductive reactance type suppression sheet and absorption mode. The leakage of the microwave is less than 5mW/cm 2 (according with national standard).
Each structure and corresponding parameter that chain plate formula transport mechanism includes are: the speed regulating motor is a variable frequency speed regulating motor, the conveyor belt is of a structure of material holding and plate turning and transmission chain, the transmission is stable, and the service life is long. The material-holding turning plate adopts a ceramic glass structure inlaid in a hard carbon steel frame, has good microwave characteristics and is resistant to high temperature of materials. Or the material-holding turning plate is made of high-temperature resistant silicon carbide material. The conveying speed is 0.5-5m/min and the speed is adjustable. The driving wheel comprises a driving wheel and a driven wheel and is used for conveying the conveying belt. The equipment is internally provided with a stainless steel angle iron track for supporting and guiding the chain. The material conveying process is controlled by a program and operated by a touch screen. The chain plate type transmission mechanism is stepless speed change and adjustment, and variable frequency control is adopted to ensure stable and reliable transmission speed.
In this embodiment, the two nitrogen gas discharge pipes 21 are disposed above the feed inlet and the discharge outlet, and the air curtain generated by nitrogen gas is used to seal the feed inlet and the discharge outlet in an intangible manner, so that the reaction chamber 11 is internally provided with a sealed space, and then oxygen outside the reaction chamber 11 is not fed into the reaction chamber 11, and the inside of the reaction chamber 11 is always provided with nitrogen gas for inputting, and organic waste gas generated in the treatment process in the reaction chamber 11 is absorbed and treated by the tail gas treatment system, so that the oxygen content inside the reaction chamber 11 is always maintained at about 4%, and the oxygen gas is almost in an anaerobic environment, thereby effectively preventing the high-temperature explosion of the organic waste gas and reducing the safety risk.
The nitrogen protection device 20 is provided in at least one group.
In order to form a sealed environment in the reaction bin 11, in some embodiments, please refer to fig. 1 to 7, the vehicle-mounted van-type continuous microwave soil solid waste treatment device further includes two sets of nitrogen protection partition boxes 30 respectively disposed at the feed inlet and the discharge outlet, the interior of the nitrogen protection partition boxes 30 is hollow, the nitrogen protection partition boxes 30 have material openings 31 suitable for the entry and exit of soil along the entry and exit direction of soil, the material openings 31 are aligned with the feed inlet or the discharge outlet (along the horizontal direction), a first nitrogen purging pipe 32 is connected to the interior of the nitrogen protection partition boxes 30, and the first nitrogen purging pipe 32 is communicated with the nitrogen protection device 20 and conveys nitrogen to the interior of the nitrogen protection partition boxes 30.
By arranging two groups of nitrogen protection partition boxes 30, the amount of oxygen entering the reaction bin 11 from the feed inlet and the discharge outlet can be reduced, and high-temperature explosion in the reaction bin 11 is prevented.
The nitrogen purged by the first nitrogen purging pipe 32 can be operated simultaneously with the nitrogen input into the reaction chamber 11, when the equipment is started and the operation state is processed, the nitrogen is blown into the reaction chamber 11 and the nitrogen protection partition box 30, so that the oxygen content in the reaction chamber 11 is always kept below 4%, and the organic waste gas cannot explode in the anoxic environment, namely does not have explosion conditions.
Specifically, the nitrogen protection cuts off case 30 and is the cuboid, and the middle part can make the contaminated soil pass through, and nitrogen protection cuts off the inside nitrogen gas of case 30 and can also form the air curtain simultaneously, and nitrogen is from the top down sweeps promptly, can intangibly cut off oxygen to nitrogen protection cuts off the input in case 30 and the reaction storehouse 11. The inside of the nitrogen protection partition box 30 may also be in a positive pressure state.
The first nitrogen purging pipe 32 penetrates from the upper end of the nitrogen protection partition box 30, the air outlet end is located above the inside of the nitrogen protection partition box 30, and is in a vertically downward state to purge nitrogen, and the nitrogen in the portion can form an air curtain.
In order to monitor the oxygen content in the reaction chamber 11 in real time, so as to reasonably control the amount of nitrogen gas input into the reaction chamber 11 and maintain the oxygen content below 4%, in some embodiments, referring to fig. 1 to 7, a first oxygen sensor 12 is connected in the reaction chamber 11, the first oxygen sensor 12 is electrically connected with the soil treatment device 10, the soil treatment device 10 is electrically connected with the nitrogen protection device 20, and the soil treatment device 10 controls the nitrogen gas conveying amount of the nitrogen protection device 20 according to the oxygen content monitored by the first oxygen sensor 12.
The first oxygen sensor 12 can timely monitor the oxygen content, the monitored information can be timely transmitted to the soil treatment device 10, the current oxygen content in the reaction bin 11 can be timely observed on the soil treatment device 10, and a basis is provided for further reasonably controlling the amount of nitrogen input into the reaction bin 11, so that the oxygen content in the reaction bin 11 is reduced, and the generated organic waste gas explosion and the like are prevented.
In some embodiments, referring to fig. 1 to 7, the nitrogen protection device 20 includes at least one group of nitrogen generators, one end of a nitrogen discharge pipe 21 is connected to a nitrogen output end of the nitrogen generator, the other end is connected to the reaction chamber 11, and a positive pressure state is formed in the reaction chamber 11 during the process of delivering nitrogen. The nitrogen generator parameter was 15Nm 3 and/H99%, cooling the material under a thermal state condition, and protecting the environment of the positive pressure atmosphere.
The nitrogen generator is prepared by using nitrogen in air, the preparation cost is lower, nitrogen is also prepared by using the principles of compressed air and oxygen production, the nitrogen conveying amount, the switching on and switching off of the nitrogen generator and the like can be manually controlled by manpower, and the nitrogen generator can be electrically connected with the soil treatment device 10 and automatically controlled (comprising conveying of nitrogen) by the soil treatment device 10.
The soil treatment device 10 is provided with a PLC treatment system, and the nitrogen generator is electrically connected with the PLC treatment system, so that the automatic control of the nitrogen generator can be realized by controlling the on-off state, the conveying amount and the like of nitrogen through the control of the soil treatment device 10.
When the reaction bin 11 is in a positive pressure state, the generated organic waste gas can actively flow into a tail gas treatment system, and the tail gas treatment system is a part of the structure of the equipment, can treat the waste gas and discharges the gas meeting the environmental protection requirement.
The apparatus described above or below refers to the present application.
Specifically, the nitrogen generators used in the embodiment are four groups, the flow rates are 58L/min, so that materials (polluted soil) are in a positive pressure state under a thermal state condition and are in a nitrogen environment, the generated organic waste gas can not reach an explosion condition, explosion can not occur, and the potential safety hazard of equipment is reduced.
In some embodiments, referring to fig. 1-7, the nitrogen protection device 20 further includes a power supply (not shown) electrically connected to the nitrogen generator, the power supply being adapted to supply power to the nitrogen generator and being chargeable and dischargeable.
The power supply can supply power to the nitrogen generator independently of mains supply, and an inverter is preferably connected to the electric energy output end of the power supply, converts a direct-current power supply into an alternating-current power supply through the inverter and supplies power to the nitrogen generator.
Specifically, the power supply can be a UPS in the prior art, and can maintain to supply power to the nitrogen generator under the condition of abnormal power failure of equipment, so that nitrogen delivery interruption occurs. The inverter may not be used when UPS power is used.
The power supply can also be a mobile power supply in the prior art, can supply power to the nitrogen generator after being electrically connected with the nitrogen generator through a wire harness, can be charged and discharged, can be used for an infinite number of times, and improves the convenience of use.
The power supply is arranged inside the container, is detachably connected with the container, and is convenient to install and detach and convenient to use.
In some embodiments, referring to fig. 1 to 7, second oxygen sensors 13 are uniformly distributed at the feed inlet and the discharge outlet, the second oxygen sensors 13 are used for monitoring the oxygen content at the feed inlet and the discharge outlet, the second oxygen sensors 13 are electrically connected with the soil treatment device 10, and the soil treatment device 10 controls the nitrogen delivery amount of the nitrogen protection device 20 according to the oxygen content monitored by the second oxygen sensors 13.
The principle of the second oxygen sensor 13 is the same as that of the first oxygen sensor 12, but the arrangement positions are different, and three groups of oxygen sensors are provided, so that as long as the oxygen value detected by one group of oxygen sensors exceeds 4%, the soil treatment device 10 controls the nitrogen protection device 20 to start, and conveys nitrogen into the reaction bin 11, the conveying amount of the nitrogen is regulated by the soil treatment device 10, the oxygen content in the reaction bin 11 is maintained below 4%, and the risk of high-temperature explosion of organic waste gas is reduced.
The first oxygen sensor 12 and the second oxygen sensor 13 are all sensors capable of monitoring oxygen content in the prior art, an electric control system is arranged on the soil treatment device 10, and the current oxygen content value can be observed on the electric control system in real time, so that a basis is provided for reasonably controlling the nitrogen conveying amount of the nitrogen protection device 20.
In order to fully mix the nitrogen and the organic waste gas in the reaction chamber 11 and reduce the oxygen content, in some embodiments, please refer to fig. 1 to 7, the inner wall of the reaction chamber 11 is rotatably connected with a rotating shaft 40, the rotating shaft 40 is connected with a purging rod 50 with a hollow structure, the inner wall of the reaction chamber 11 is provided with a driver 60 for driving the rotating shaft 40 to rotate, a power output end of the driver 60 is connected with the rotating shaft 40, the purging rod 50 swings in a fan shape and the swinging surface is in a vertical plane, the purging rod 50 is connected with a second nitrogen purging pipe 70, and the second nitrogen purging pipe 70 is communicated with the nitrogen protection device 20 and purges nitrogen in a fan shape into the reaction chamber 11 by means of the swinging of the purging rod 50.
The driver 60 may be provided inside the inner wall of the reaction chamber 11 and connected to the rotation shaft 40 by a belt transmission or a chain transmission. When chain drive is used, the rotating shaft 40 is sleeved with a chain wheel, and the connection mode can be seen in the prior art.
Specifically, the second nitrogen purge pipe 70 and the first nitrogen purge pipe 32 operate simultaneously, and nitrogen is delivered into the reaction chamber 11 through the second nitrogen purge pipe 70, so that the nitrogen can be mixed with organic waste gas or oxygen and the like, the oxygen content in the reaction chamber 11 is reduced, and the oxygen content is always maintained below 4% along with the delivery of the nitrogen and the absorption of the tail gas treatment system, so that the gas in the reaction chamber 11 is maintained in a positive pressure balance state, and explosion accidents are prevented.
Specifically, the driver 60 is a motor, and has adjustable speed, and can rotate forward and backward, so as to drive the rotating shaft 40 to rotate, and the rotating shaft 40 usually has a rotating angle smaller than 180 ° and is in swinging reciprocating rotation, and along with the conveying of the nitrogen, the gas in the reaction bin 11 can be dispersed into a mixed state, so that the nitrogen is mixed with other gases.
The rotation plane of the purge rod 50 is in a vertical plane, and can swing or reciprocally rotate in the process of conveying nitrogen, so that the mixing efficiency of the gas in the reaction chamber 11 is improved, and the oxygen content is reduced.
Preferably, the purge rod 50 has a reverse Y-shaped structure, one end of which is connected to the rotating shaft 40, and the purge rod 50 is operated in a swinging manner when the rotating shaft 40 rotates.
In order to keep the purge rod 50 stable during the swing process, in some embodiments, referring to fig. 1 to 7, an arc-shaped slide rail 80 is connected to the inner wall of the reaction chamber 11, a slide block 51 is connected to the middle of the purge rod 50, the slide block 51 is slidably connected to the arc-shaped slide rail 80, and a limiting member adapted to abut against the arc-shaped slide rail 80 is connected to the purge rod 50.
Preferably, the sliding block 51 is located at the middle position of the side part of the purging rod 50, and the side part is arc-shaped and can slide with the arc-shaped sliding rail 80 in an adaptive manner, so that the purging rod 50 can swing stably or rotate in a reciprocating manner, uniform swing is realized, and compared with the condition that the purging rod 50 does not rotate, nitrogen and other gases can be mixed in a large range.
In order to enable the second nitrogen purging pipe 70 to be well fused with the purging rod 50, normal nitrogen transportation of the second nitrogen purging pipe 70 is not affected in the swinging process of the purging rod 50, in some embodiments, referring to fig. 1 to 7, one end of the purging rod 50 is connected with the rotating shaft 40, the other end is a free end, a penetrating opening 52 is formed in the position, close to the rotating shaft 40, of the purging rod 50, a penetrating opening 53 is formed in the free end, one end of the second nitrogen purging pipe 70 penetrates from the penetrating opening 52 and penetrates from the penetrating opening 53, a nitrogen output end of the second nitrogen purging pipe 70 is connected with a gas nozzle 71, and the gas nozzle 71 is suitable for transporting nitrogen into the reaction bin 11. The air tap 71 is provided with a plurality of output ports for outputting nitrogen gas in different directions.
Specifically, the second nitrogen purging pipe 70 is arranged in a triangle structure near the nitrogen output end, which is similar to a tee structure, because the purging rod 50 is in a Y shape, the second nitrogen purging pipe 70 is also in a Y shape, and the two are matched with each other. Namely, an outlet is added on the basis of the original nitrogen purging pipe, and nitrogen blown out from the outlet can face different directions, so that nitrogen can be purged in different directions in the reaction bin 11.
Of course, the purge rod 50 may be configured as a hollow column structure, and the second nitrogen purge tube 70 is a common pipeline, which penetrates into the purge rod 50 and is led out from one end, so that the nitrogen purge can be realized, but the nitrogen purge range is larger, the area is wider, the mixing efficiency with other gases is higher, and the increase of the oxygen content can be prevented in time.
In some embodiments, referring to fig. 1-7, purge rod 50 is a telescoping member and has the freedom to telescope toward the middle of reaction chamber 11. That is, the expansion and contraction of the purge rod 50 is along the horizontal direction or the vertical direction, and always faces the center of the reaction chamber 11, which has the effect of extending the position of the nitrogen gas to be transported into the reaction chamber 11, and the closer to the center of the reaction chamber 11, the higher the efficiency of mixing the nitrogen gas with other gases, the faster the mixing speed, and the capability of reducing the oxygen content as soon as possible, thereby preventing the occurrence of accidents such as explosion of organic waste gas. The telescopic member is manually adjustable and telescopic, the telescopic length is adjustable, and the telescopic member can be limited after being adjusted.
Wherein, the setting position of penetrating opening 52 does not influence the normal flexible operation of blowing stick 50, see from the fig. 7, penetrating opening 52 is located the right side of flexible position.
The soil treatment apparatus 10 may be a mobile organic contaminated soil microwave rapid thermal desorption apparatus in the prior art, and includes a frame, a link plate conveying mechanism, a microwave suppressor and a container, where the container may be placed on a vehicle, so as to implement vehicle-mounted van-type continuous microwave soil solid waste treatment. In addition, the container is internally provided with an air cooling system, a moisture removing system, a control system and an electric control cabinet, polluted soil is conveyed from one end of the chain plate conveying mechanism to the other end, the polluted soil is heated by microwaves in the conveying process, and solid wastes in the soil are heated and desorbed.
Specifically, the container size: 12.02 x 2.35 x 2.38m (length x width x height, standard), 2 metal doors are arranged on the front surface of the container, the left side door is opened as an operation control cabinet, and the right side door is an electric detection and maintenance door. The lower half part of the front surface of the container is provided with three container air inlets, the upper half part of the rear surface of the container is provided with five groups of corresponding container air outlets for air flow, the heat of equipment is taken away, a good working environment is kept, and the air inlet and the air outlet are respectively provided with a rainproof shutter and a fan, so that the container is suitable for outdoor work; meanwhile, no harmful gas is ensured in the container, and the safety of personnel is ensured. The back of the container is provided with a group of moisture discharging ports, and a reserved phi 300mm flange is arranged, so that the user can conveniently connect with a gas purifying structure or equipment. The right side of the container is provided with a double-door structure, after the container is opened, a user sends materials into a feeding hopper through a lifting machine (or manual feeding), and after the device is operated, continuous feeding can be realized. The left side of the container is opened, a blanking hopper and a screw conveyer which is arranged vertically are arranged in the container, after the device is operated, the processed materials can be discharged through the rear of the equipment, a discharge hole is reserved at the rear of the equipment, and a user can conveniently connect the subsequent material receiving process equipment.
The reaction chamber is about 11000 x 1300 x 190 mm (length x width x height, including feeding hopper and discharging blanking hopper), the reaction chamber 11 can also be called a heating box body, which is made of 304 stainless steel materials, and an insulation layer is arranged in the heating box body to ensure the internal temperature. The stainless steel blanking hopper, the auxiliary material scraping plate with adjustable height and the cake filter are arranged at the feeding port of the reaction bin 11, so that the thickness of the tight materials is ensured to be uniform, and the large-volume stone with the thickness of more than 10mm is prevented from being mixed into the reaction bin (pyrolysis cavity). The design and installation of the equipment generally allows for safety, stability, reliability, sanitation, and ease of operation and maintenance requirements. The frame is fixed with the container together to prevent shaking during use or transportation.
The microwave heating inside the device is realized through a microwave system, and parameters of the microwave system comprise: the microwave frequency is 2450MHz, the microwave power is 75KW, the microwave box body comprises six microwave heating boxes, and the effective heating length is about 6.6m. The microwave source adopts a genuine samsung 1KW air-cooled magnetron, so that the heat dissipation is good and the load resistance is strong; the power supply adopts an industrial variable frequency power supply, and is suitable for 24-hour continuous operation. In addition, the advanced multi-source multi-port broadband feed-in is adopted, so that the heat balance in the box body is ensured. The microwave feed mode is top feed. The microwave power adjusting range is 1-75KW.
The structure of the microwave heating box comprises: the box top sets up 5 loudspeaker shape moisture removal mouths, strengthens the moisture removal effect. The guide rail of the conveyor belt in the box body prevents deviation and is convenient for stable transmission and feeding. The microwave feed port is sealed and shielded by the ceramic plate, so that the influence of water vapor is prevented. An inner heat insulation structure and a heat insulation channel are arranged in the box body, so that heat dissipation is reduced, and the treatment effect is improved.
The device also comprises a temperature control system, which comprises infrared temperature measurement and microwave source temperature control, and adopts an infrared thermometer to be arranged at the front, middle and back of the equipment for immediately measuring the temperature of the internal materials and dynamically monitoring the temperature condition of drying and heating. The temperature of the microwave source is controlled to be a single microwave source, and a temperature protector is arranged for the single microwave source, so that abnormal temperature can be automatically protected.
The device also comprises a moisture removal system, in particular a centrifugal fan (1400-2800 m) comprising 5 groups of 750W 3 And H), carrying out gas forced exhaust in the 5 groups of boxes, wherein each fan can be independently switched on and off, and a manual air door is arranged corresponding to a pipeline, so that corresponding air flow can be manually set, and the internal temperature condition is adjusted. The 5-component machine pipelines are connected in parallel through the inside, one path of the 5-component machine pipelines are uniformly discharged out of the container, and customers are connected with corresponding gas collecting disposal devices according to needs. The exhaust pipe adopts stainless steel pipelines, is assembled by parallel connection and is used for discharging moisture, the front section rapidly discharges moisture, the rear section discharges high-temperature pyrolysis gas, and the rear section is arranged at the rear position corresponding to the fan, so that the influence of high temperature is avoided.
The control system of the device comprises: the control mode adopts industrial electrical automation PLC control, the touch screen is operated, the temperature measurement adopts three groups of infrared thermometers for temperature measurement, the temperature measurement range is 0-900 ℃, the microwave power adjustment range is 1-75KW and can be used in an adjustable way, and the number of microwave sources can be started according to actual needs, so that proper power is selected to save energy.
The reaction bin 11 of the device is divided into three functional areas, namely a drying heating area, a high-temperature desorption area and a constant-temperature blanking area.
Specifically, the device further comprises a mobile terminal (not shown in the figure), the electric control cabinet and the mobile terminal are both provided with communication units which are in mutual wireless communication connection, wireless communication is realized between the mobile terminal and the electric control cabinet, the electric control cabinet can control the operation of the nitrogen protection device 20, the operation of the nitrogen protection device 20 can be controlled on the mobile terminal, and then the conveying amount of nitrogen is reasonably controlled.
The foregoing description of the preferred embodiments of the application is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the application.
Claims (6)
1. Vehicle-mounted van-type continuous microwave soil solid waste treatment equipment, which is characterized by comprising:
the soil treatment device is provided with a reaction bin for treating organic matter polluted soil by microwaves, the reaction bin is communicated with the tail gas treatment system, and two ends of the reaction bin are respectively provided with a feed inlet and a discharge outlet which are suitable for the entry and exit of the polluted soil; two groups of microwave suppressors are arranged in the soil treatment device and are respectively arranged at two ports of the reaction bin; and
the nitrogen protection device is provided with a nitrogen discharge pipe which is suitable for being communicated with the reaction bin, and is used for conveying nitrogen into the reaction bin, and the conveyed nitrogen forms an air curtain in the reaction bin so as to reduce the oxygen content in the reaction bin;
the nitrogen protection partition box is hollow, is provided with a material port suitable for soil to enter and exit along the entering and exiting direction of soil, is aligned with the material port or the material outlet, is internally connected with a first nitrogen purging pipe, is communicated with the nitrogen protection device and conveys nitrogen to the inside of the nitrogen protection partition box;
the reaction bin is connected with a first oxygen sensor, the first oxygen sensor is electrically connected with the soil treatment device, the soil treatment device is electrically connected with the nitrogen protection device, and the soil treatment device controls the nitrogen conveying amount of the nitrogen protection device according to the oxygen content monitored by the first oxygen sensor;
the inner wall of the reaction bin is rotationally connected with a rotating shaft, the rotating shaft is connected with a purging rod with a hollow structure, the inner wall of the reaction bin is provided with a driver for driving the rotating shaft to rotate, the power output end of the driver is connected with the rotating shaft, the purging rod swings in a fan shape, the swinging surface of the purging rod is in a vertical plane, the purging rod is connected with a second nitrogen purging pipe, the second nitrogen purging pipe is communicated with the nitrogen protection device and is used for purging nitrogen in a fan shape into the reaction bin by means of swinging of the purging rod, and the purging rod is a telescopic member and has a degree of freedom of stretching towards the middle part of the reaction bin;
the soil treatment device comprises a container, wherein the container is placed on a vehicle, an air cooling system, a temperature control system, a moisture removal system, a control system, an electric control cabinet and a mobile terminal are arranged in the container, the electric control cabinet controls the nitrogen protection device to operate, and the mobile terminal is connected with the electric control cabinet in a wireless communication manner and is suitable for controlling the nitrogen protection device to operate.
2. The vehicle-mounted van-type continuous microwave soil solid waste treatment device according to claim 1, wherein the nitrogen protection device comprises at least one group of nitrogen generators, one end of the nitrogen discharge pipe is communicated with the nitrogen output end of the nitrogen generators, the other end of the nitrogen discharge pipe is communicated with the reaction bin, and the reaction bin is in a positive pressure state during nitrogen conveying.
3. The vehicle-mounted, continuous microwave soil solid waste treatment apparatus of claim 2, wherein the nitrogen protection device further comprises a power supply electrically connected to the nitrogen generator, the power supply adapted to supply power to the nitrogen generator and being chargeable and dischargeable.
4. The vehicle-mounted van-type continuous microwave soil solid waste treatment device according to claim 1, wherein second oxygen sensors are uniformly distributed at the feed inlet and the discharge outlet, the second oxygen sensors are used for monitoring the oxygen content at the feed inlet and the discharge outlet, the second oxygen sensors are electrically connected with the soil treatment device, and the soil treatment device controls the nitrogen conveying amount of the nitrogen protection device according to the oxygen content monitored by the second oxygen sensors.
5. The vehicle-mounted van-type continuous microwave soil solid waste treatment device according to claim 1, wherein the inner wall of the reaction bin is connected with an arc-shaped sliding rail, the middle part of the purging rod is connected with a sliding block, the sliding block is slidably connected with the arc-shaped sliding rail, and the purging rod is connected with a limiting piece suitable for being abutted against the arc-shaped sliding rail.
6. The vehicle-mounted van-type continuous microwave soil solid waste treatment device according to claim 1, wherein one end of the purging rod is connected with the rotating shaft, the other end of the purging rod is a free end, a penetrating opening is formed in the position, close to the rotating shaft, of the purging rod, a penetrating opening is formed in the free end of the purging rod, one end of the second nitrogen purging pipe penetrates through the penetrating opening and penetrates out of the penetrating opening, a nitrogen output end of the second nitrogen purging pipe is connected with an air tap, and the air tap is suitable for conveying nitrogen into the reaction bin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210758469.6A CN115121597B (en) | 2022-06-29 | 2022-06-29 | Vehicle-mounted van-type continuous microwave soil solid waste treatment equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210758469.6A CN115121597B (en) | 2022-06-29 | 2022-06-29 | Vehicle-mounted van-type continuous microwave soil solid waste treatment equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115121597A CN115121597A (en) | 2022-09-30 |
| CN115121597B true CN115121597B (en) | 2023-08-22 |
Family
ID=83382307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210758469.6A Active CN115121597B (en) | 2022-06-29 | 2022-06-29 | Vehicle-mounted van-type continuous microwave soil solid waste treatment equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115121597B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1201410A (en) * | 1995-10-06 | 1998-12-09 | 无毒系统有限公司(澳大利亚公司) | Volatile materials treatment system |
| CN102205339A (en) * | 2011-01-11 | 2011-10-05 | 青岛迈可威微波应用技术有限公司 | Microwave depolymerization equipment and method |
| CN207995871U (en) * | 2017-09-19 | 2018-10-23 | 昆明品世食品有限公司 | A kind of air-drying device |
| CN108746178A (en) * | 2018-07-13 | 2018-11-06 | 新疆维吾尔自治区固体废物管理中心 | A kind of energy saving thermal desorption processing unit in situ and processing method of oil pollution soil |
| CN108923017A (en) * | 2016-07-18 | 2018-11-30 | 山东科朗特微波设备有限公司 | Tunnel type battery material microwave preparation equipment |
| CN110465543A (en) * | 2018-05-11 | 2019-11-19 | 南开大学 | A kind of hot restorative procedure of organic polluted soil |
| CN111215439A (en) * | 2019-10-11 | 2020-06-02 | 广西博世科环保科技股份有限公司 | Method and device for controlling oxygen content of tail gas of thermal desorption system of organic contaminated soil |
| CN113577975A (en) * | 2021-08-02 | 2021-11-02 | 鸿灌环境技术有限公司 | Organic pollutant waste gas treatment method in ectopic indirect thermal desorption process |
| CN113751485A (en) * | 2020-06-04 | 2021-12-07 | 中石化绿能科技股份有限公司 | Soil pollution's heat treatment system |
-
2022
- 2022-06-29 CN CN202210758469.6A patent/CN115121597B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1201410A (en) * | 1995-10-06 | 1998-12-09 | 无毒系统有限公司(澳大利亚公司) | Volatile materials treatment system |
| CN102205339A (en) * | 2011-01-11 | 2011-10-05 | 青岛迈可威微波应用技术有限公司 | Microwave depolymerization equipment and method |
| CN108923017A (en) * | 2016-07-18 | 2018-11-30 | 山东科朗特微波设备有限公司 | Tunnel type battery material microwave preparation equipment |
| CN207995871U (en) * | 2017-09-19 | 2018-10-23 | 昆明品世食品有限公司 | A kind of air-drying device |
| CN110465543A (en) * | 2018-05-11 | 2019-11-19 | 南开大学 | A kind of hot restorative procedure of organic polluted soil |
| CN108746178A (en) * | 2018-07-13 | 2018-11-06 | 新疆维吾尔自治区固体废物管理中心 | A kind of energy saving thermal desorption processing unit in situ and processing method of oil pollution soil |
| CN111215439A (en) * | 2019-10-11 | 2020-06-02 | 广西博世科环保科技股份有限公司 | Method and device for controlling oxygen content of tail gas of thermal desorption system of organic contaminated soil |
| CN113751485A (en) * | 2020-06-04 | 2021-12-07 | 中石化绿能科技股份有限公司 | Soil pollution's heat treatment system |
| CN113577975A (en) * | 2021-08-02 | 2021-11-02 | 鸿灌环境技术有限公司 | Organic pollutant waste gas treatment method in ectopic indirect thermal desorption process |
Non-Patent Citations (1)
| Title |
|---|
| 颜红侠.《现代精细化工实验》.西北工业大学出版社,2015,(第1版),第33页. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115121597A (en) | 2022-09-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7832344B2 (en) | Method and apparatus of treating waste | |
| US7216593B2 (en) | Apparatus for treating liquid waste | |
| WO2009100049A1 (en) | Method and apparatus of treating waste | |
| CN115121597B (en) | Vehicle-mounted van-type continuous microwave soil solid waste treatment equipment | |
| CN110121750A (en) | Radioactive waste treatment facility | |
| CN110864298A (en) | Anaerobic treatment process for medical waste | |
| CN105107816A (en) | Disassembling method for waste television and equipment or disassembling equipment | |
| JP2002282817A (en) | Waste disposal equipment and disposal method for rendering harmful substance or subject including it harmless | |
| CN110542093A (en) | Energy-saving household garbage flash evaporation mineralization processor | |
| CN209858561U (en) | Continuous microwave soil remediation experimental equipment | |
| KR101092889B1 (en) | Continuous firing furnace | |
| CN213040930U (en) | Chemical material strip drying machine | |
| EP2666812A1 (en) | Method and apparatus for recycling of organic waste preferably used tires using microwave technique | |
| CN207599719U (en) | A kind of more spiral pyrolysis plants of microwave | |
| CN217964065U (en) | A pyrolysis seal processing system for doing wet refuse treatment | |
| CN2420504Y (en) | Processor for organic poisonous and harmful gas | |
| CN207494198U (en) | A kind of vehicle-mounted type soil remediation all-in-one machine | |
| CN111288457A (en) | Plasma furnace with feeding device | |
| CN214937761U (en) | High-temperature nitriding quenching device of vacuum pulse carburizing furnace | |
| CN211176835U (en) | Equipment for continuously treating medical waste at high temperature | |
| CN211976886U (en) | Plasma furnace with feeding device | |
| CN212396761U (en) | Internal heat type converter regeneration disposal device for hazardous waste powdered activated carbon | |
| CN205077007U (en) | Raw materials of serialization schizolysis in -process preheats conveyor | |
| CN214864702U (en) | Paint mixing device with air supply and exhaust system | |
| CN211875679U (en) | Conveying system for asphalt smoke |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |