CN110665951A - Thermal desorption device for organic contaminated soil - Google Patents
Thermal desorption device for organic contaminated soil Download PDFInfo
- Publication number
- CN110665951A CN110665951A CN201910879536.8A CN201910879536A CN110665951A CN 110665951 A CN110665951 A CN 110665951A CN 201910879536 A CN201910879536 A CN 201910879536A CN 110665951 A CN110665951 A CN 110665951A
- Authority
- CN
- China
- Prior art keywords
- crushing
- pipe
- thermal desorption
- contaminated soil
- organic contaminated
- 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.)
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Classifications
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/14—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/02—Crushing or disintegrating by roller mills with two or more rollers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
Abstract
The invention discloses a thermal desorption device for organic contaminated soil, which comprises a crushing device, a conveying device, a heating device and a gas treatment device, wherein the crushing device is connected with the conveying device through a discharging pipe, the conveying device is connected with the gas treatment device through a plurality of groups of first connecting pipes, the heating device heats the conveying device, the crushing device is fixedly connected with the top of a base through a connecting rod, a cooling cavity is arranged in the base, the heating device is arranged in the cooling cavity, the bottom parts of the left side and the right side of the cooling cavity are respectively connected with a water discharging pipe and a water inlet pipe, and the right side of the conveying device is connected with a discharging; according to the invention, the soil is preheated through the electric heating block, and is crushed through the crushing assembly and the crushing roller, so that the crushing effect is good, the thermal desorption effect of the soil is better, and meanwhile, after the soil is used, cooling water can be injected into the cooling cavity through the water inlet pipe, and the cooling speed of the heating device is increased.
Description
Technical Field
The invention relates to the technical field of layer contaminated soil treatment, in particular to a thermal desorption device for organic contaminated soil.
Background
Thermal desorption is used as a non-combustion technology, pollutants are converted from one state to another state through a heating mode, the pollutants are volatilized, chemical reactions such as oxidation and decomposition are not generated, the pollutant processing range is wide, the repaired soil can be reused, particularly, dioxin can be prevented from being generated by the processing mode of non-oxidative combustion of chlorine-containing organic matters, and the method is widely used for repairing the soil polluted by the organic pollutants. The thermal desorption devices currently on the market mainly have the following disadvantages:
although can set up crushing unit in the thermal desorption device on the market and carry out shredding to soil, nevertheless crushing effect is all comparatively general, leading to regularly carrying out the thermal desorption to massive soil, consuming time is of a specified duration, desorption effect is relatively poor, and the soil that needs to carry out the thermal desorption generally all has certain moisture, when smashing soil, soil is stained with easily and attaches on the score subassembly, cause the jam, the trouble of clearance ten minutes, traditional thermal desorption heating element needs the cool time of using the completion back of the needs is of a specified duration simultaneously, it is comparatively inconvenient to use.
Disclosure of Invention
The invention aims to overcome the problems in the prior art, and provides a thermal desorption device for organic contaminated soil, which preheats the soil through an electric heating block, crushes the soil through a crushing assembly and a crushing roller, has good crushing effect and better thermal desorption effect of the soil, and can inject cooling water into a cooling cavity through a water inlet pipe after use to accelerate the cooling speed of a heating device.
In order to achieve the technical purpose and achieve the technical effect, the invention is realized by the following technical scheme:
the utility model provides a thermal desorption device of organic contaminated soil, includes reducing mechanism, conveyor, heating device and gaseous processing apparatus, the reducing mechanism is connected with conveyor through unloading pipe, conveyor is connected with gaseous processing apparatus through the first connecting pipe of multiunit, heating device heats conveyor, reducing mechanism passes through connecting rod and base top fixed connection, it has the cooling cavity to open in the base, heating device arranges the cooling cavity in, cooling cavity left and right sides bottom is connected with drain pipe and inlet tube respectively, the conveyor right side is connected with row's material pipe.
Further, the smashing device comprises a smashing box, the top of the smashing box is provided with a feeding hopper, the side wall of the smashing box is provided with a motor, a rotating shaft is connected onto the motor, a detachable smashing assembly is arranged on the rotating shaft, a first blanking hopper is arranged in the smashing box and located below the smashing assembly, two groups of smashing rollers are arranged at the outlet of the first blanking hopper, a placing plate is arranged below the first blanking hopper, the placing plate is fixedly connected with the inner wall of the box body, a vibrating motor is arranged on the placing plate and is in contact with the first blanking hopper, a second blanking hopper is arranged at the bottom of the smashing box and is connected with the base through a connecting rod, and the outlet of the second blanking hopper is connected with a blanking pipe.
Further, smash the incasement wall and be equipped with the electrical heating piece, the electrical heating piece is located crushing unit top, crushing unit includes the multiunit carousel, carousel and pivot fixed connection, there are multiunit crushing sword, multiunit through bolted connection on the carousel crushing sword becomes the circumference and distributes.
Further, the conveying device is an auger conveyor.
Further, the heating device comprises a shell, the shell is arranged in the cooling cavity, an electric heating pipe is arranged in the shell, and heat conduction oil is filled in the shell.
Further, gas treatment device is including handling the case, it is connected with conveyor through first even pipe to handle the case, it is equipped with the filter screen to handle incasement right side, filter screen and processing incasement wall fixed connection, the filter screen right side is equipped with the activated carbon layer, it is connected with the second even pipe to handle case right side wall, the second is even managed and is equipped with the fan, the second is even intraductal bottom of tubes inserts the reaction box, the reaction box is arranged in on the base, be equipped with reaction solution in the reaction box, the reaction box is connected with the blast pipe.
Further, the filter screen is the HEPA filter screen.
Furthermore, the base bottom is equipped with the supporting leg, the supporting leg bottom is equipped with the gyro wheel.
Furthermore, an electromagnetic valve is arranged in the drain pipe.
The benefit effects of the invention are:
according to the invention, the soil is preheated through the electric heating block, the soil can be prevented from being adhered to the crushing assembly due to excessive humidity, the soil is crushed through the crushing assembly and the crushing roller, the crushing effect is good, the thermal desorption effect of the soil is better, the crushing knife on the crushing assembly can be disassembled, the device can be prevented from being incapable of being used after the crushing knife is damaged by small stones in the soil, the replacement is very convenient, and meanwhile, after the device is used, cooling water can be injected into the cooling cavity through the water inlet pipe, so that the cooling speed of the heating device is increased.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the crushing apparatus according to the present invention;
FIG. 3 is a schematic view of the shredder assembly of the present invention;
FIG. 4 is a schematic view of a heating apparatus according to the present invention;
FIG. 5 is a schematic view of the gas processing apparatus according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-5, the present invention is a thermal desorption device for organic contaminated soil, which comprises a crushing device 1, a conveying device 2, a heating device 3 and a gas treatment device 4, wherein the crushing device 1 is connected with the conveying device 2 through a discharge pipe 5, the conveying device 2 is connected with the gas treatment device 4 through a plurality of groups of first connecting pipes 14, the heating device 3 heats the conveying device 2, the crushing device 1 is fixedly connected with the top of a base 7 through a connecting rod 6, a cooling chamber 8 is arranged in the base 7, the heating device 3 is arranged in the cooling chamber 8, the left and right side bottoms of the cooling chamber 8 are respectively connected with a water discharge pipe 10 and a water inlet pipe 9, and the right side of the conveying device 2 is connected with a material discharge pipe 11.
The crushing device 1 comprises a crushing box 16, a feeding hopper 15 is arranged at the top of the crushing box 16, a motor 24 is arranged on the side wall of the crushing box 16, a rotating shaft 19 is connected onto the motor 24, a detachable crushing assembly 18 is arranged on the rotating shaft 19, a first blanking hopper 20 is arranged in the crushing box 16, the first blanking hopper 20 is positioned below the crushing assembly 18, two groups of crushing rollers 23 are arranged at an outlet of the first blanking hopper 20, a placing plate 22 is arranged below the first blanking hopper 20, the placing plate 22 is fixedly connected with the inner wall of a box body, a vibration motor 21 is arranged on the placing plate 22, the vibration motor 21 is contacted with the first blanking hopper 20, so that soil can conveniently slide along the first blanking hopper 20, a second blanking hopper is arranged at the bottom of the crushing box 16, the second blanking hopper is connected with a base 7 through a; smash 16 inner walls of case and be equipped with electric heating block 17, can preheat soil, electric heating block 17 is located crushing unit 18 top, and crushing unit 18 includes multiunit carousel 181, carousel 181 and 19 fixed connection of pivot, is connected with multiunit crushing sword 182 through bolt 183 on the carousel 181, is convenient for change crushing sword 182, and multiunit crushing sword 182 becomes the circumference and distributes, smashes effectually.
Wherein the conveying device 2 is a screw conveyor; the heating device 3 comprises a shell 24, the shell 24 is arranged in the cooling cavity 8, so that the heating device 3 can be cooled conveniently, an electric heating pipe 26 is arranged in the shell 24, heat conduction oil 25 is filled in the shell 24, and the heat conduction effect is good.
The gas treatment device 4 comprises a treatment box 27, the treatment box 27 is connected with the conveying device 2 through a first connecting pipe 14, a filter screen 28 is arranged on the right side in the treatment box 27, the filter screen 28 is fixedly connected with the inner wall of the treatment box 27, an activated carbon layer 29 is arranged on the right side of the filter screen 28 and can be used for adsorbing gas, a second connecting pipe 31 is connected with the right side wall of the treatment box 27, a fan 30 is arranged on the second connecting pipe 31, the bottom of the second connecting pipe 31 is inserted into a reaction box 33, the reaction box 33 is arranged on a base 7, a reaction solution 32 is arranged in the reaction box 33, the reaction box 33 is connected with an exhaust pipe 32, the filter screen 28 is an HEPA filter screen, and the; the bottom of the base 7 is provided with a supporting leg 12, and the bottom of the supporting leg 12 is provided with a roller 13, so that the device can move conveniently; an electromagnetic valve is arranged in the water discharge pipe 10, so that the cooling water can be conveniently discharged.
One specific application of this embodiment is: when the device is used, soil is added into the crushing box 16 through the feeding hopper 15, the electric heating block 17 carries out pre-heating treatment on the soil to prevent the soil from being excessively moist, the motor 24 drives the crushing assembly 18 to rotate through the rotating shaft 19, the crushing knife 182 carries out primary crushing treatment on the soil, the primarily crushed soil falls on the first blanking hopper 20 and falls between the two groups of crushing rollers 23 along the first blanking hopper 20, the crushing rollers 23 further crush the soil, the crushing effect is good, the vibration motor 21 drives the first blanking hopper 20 to vibrate to facilitate the sliding of the soil in the first blanking hopper 20, the crushed soil falls into the conveying device 2 through the blanking pipe 5, the conveying device 2 conveys the soil, the electric heating pipe 26 heats the heat conduction oil 25, the heat conduction oil 25 transfers the heat into the conveying device 2 to carry out thermal desorption treatment on the soil, harmful gas enters the treatment box 27 through the first connecting pipe 14, under the action of the fan 30, harmful gas is filtered when passing through the filter screen 28, the activated carbon layer 29 adsorbs the gas, the harmful gas enters the reaction box 33 through the second connecting pipe 31 to react with the reaction solution, and the reacted gas is discharged through the exhaust pipe 32.
In conclusion, the soil is preheated through the electric heating block, the soil is crushed through the crushing assembly and the crushing roller, the crushing effect is good, the thermal desorption effect of the soil is better, and meanwhile, after the soil is used, cooling water can be injected into the cooling cavity through the water inlet pipe, so that the cooling speed of the heating device is increased.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (9)
1. The utility model provides a thermal desorption device of organic contaminated soil, includes reducing mechanism (1), conveyor (2), heating device (3) and gas processing apparatus (4), its characterized in that: reducing mechanism (1) is connected with conveyor (2) through unloading pipe (5), conveyor (2) are connected with gas treatment device (4) through the first even pipe (14) of multiunit, heating device (3) heat conveyor (2), reducing mechanism (1) is through connecting rod (6) and base (7) top fixed connection, it has cooling chamber (8) to open in base (7), cooling chamber (8) are arranged in heating device (3), cooling chamber (8) are controlled both sides bottom and are connected with drain pipe (10) and inlet tube (9) respectively, conveyor (2) right side is connected with row material pipe (11).
2. The thermal desorption device for the organic contaminated soil according to claim 1, wherein: the crushing device (1) comprises a crushing box (16), a feeding hopper (15) is arranged at the top of the crushing box (16), a motor (24) is arranged on the side wall of the crushing box (16), a rotating shaft (19) is connected to the motor (24), a detachable crushing assembly (18) is arranged on the rotating shaft (19), a first blanking hopper (20) is arranged in the crushing box (16), the first blanking hopper (20) is positioned below the crushing assembly (18), two groups of crushing rollers (23) are arranged at the outlet of the first blanking hopper (20), a placing plate (22) is arranged below the first blanking hopper (20), the placing plate (22) is fixedly connected with the inner wall of a box body, a vibrating motor (21) is arranged on the placing plate (22), the vibrating motor (21) is in contact with the first blanking hopper (20), and a second blanking hopper is arranged at the bottom of the crushing box (16), the second discharging hopper is connected with a base (7) through a connecting rod (6), and the outlet of the second discharging hopper is connected with a discharging pipe (5).
3. The thermal desorption device for the organic contaminated soil according to claim 2, wherein: smash case (16) inner wall and be equipped with electrical heating piece (17), electrical heating piece (17) are located crushing unit (18) top, crushing unit (18) include multiunit carousel (181), carousel (181) and pivot (19) fixed connection, be connected with multiunit crushing sword (182), multiunit through bolt (183) on carousel (181) crushing sword (182) become the circumference and distribute.
4. The thermal desorption device for the organic contaminated soil according to claim 3, wherein: the conveying device (2) is an auger conveyor.
5. The thermal desorption device for the organic contaminated soil according to claim 4, wherein: the heating device (3) comprises a shell (24), the shell (24) is arranged in the cooling cavity (8), an electric heating pipe (26) is arranged in the shell (24), and heat conduction oil (25) is filled in the shell (24).
6. The thermal desorption device for the organic contaminated soil according to claim 5, wherein: gas treatment device (4) are including handling case (27), it is connected with conveyor (2) to handle case (27) through first even pipe (14), it is equipped with filter screen (28) to handle the right side in case (27), filter screen (28) and processing case (27) inner wall fixed connection, filter screen (28) right side is equipped with activated carbon layer (29), it has second even pipe (31) to handle case (27) right side wall connection, the second is equipped with fan (30) on even pipe (31), the second is even in pipe (31) bottom inserts reaction box (33), reaction box (33) are arranged in on base (7), be equipped with reaction solution (32) in reaction box (33), reaction box (33) are connected with blast pipe (32).
7. The thermal desorption device for the organic contaminated soil according to claim 6, wherein: the filter screen (28) is a HEPA filter screen.
8. The thermal desorption device for the organic contaminated soil according to claim 7, wherein: the base (7) bottom is equipped with supporting leg (12), supporting leg (12) bottom is equipped with gyro wheel (13).
9. The thermal desorption device for the organic contaminated soil according to claim 8, wherein: an electromagnetic valve is arranged in the drain pipe (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910879536.8A CN110665951A (en) | 2019-09-18 | 2019-09-18 | Thermal desorption device for organic contaminated soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910879536.8A CN110665951A (en) | 2019-09-18 | 2019-09-18 | Thermal desorption device for organic contaminated soil |
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| Publication Number | Publication Date |
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| CN110665951A true CN110665951A (en) | 2020-01-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910879536.8A Pending CN110665951A (en) | 2019-09-18 | 2019-09-18 | Thermal desorption device for organic contaminated soil |
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| CN (1) | CN110665951A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111495953A (en) * | 2020-04-27 | 2020-08-07 | 长沙柳腾科技有限公司 | Pretreatment equipment for ectopic leaching of petroleum-polluted gravel-containing soil |
| CN111940480A (en) * | 2020-06-22 | 2020-11-17 | 苏州市宏宇环境科技股份有限公司 | Thermal desorption device and method for repairing organic contaminated soil |
| CN112058892A (en) * | 2020-09-07 | 2020-12-11 | 生态环境部南京环境科学研究所 | Tank type thermal desorption device and desorption method based on thermal desorption auxiliary agent filling |
| CN112495501A (en) * | 2020-12-14 | 2021-03-16 | 湖南博川农业发展有限责任公司 | Building rubbish saline and alkaline land afforestation tree planting soil conditioner manufacture equipment |
| CN113145628A (en) * | 2021-04-29 | 2021-07-23 | 生态环境部南京环境科学研究所 | Thermal desorption repair device for soil polluted by POPs pesticides |
| CN113182342A (en) * | 2021-05-19 | 2021-07-30 | 山西八建集团有限公司 | Thermal desorption prosthetic devices who pollutes soil |
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| CN208960109U (en) * | 2018-10-12 | 2019-06-11 | 广州联丰香料科技有限公司 | A kind of pepper powder production of raw material for use grinding device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111495953A (en) * | 2020-04-27 | 2020-08-07 | 长沙柳腾科技有限公司 | Pretreatment equipment for ectopic leaching of petroleum-polluted gravel-containing soil |
| CN111940480A (en) * | 2020-06-22 | 2020-11-17 | 苏州市宏宇环境科技股份有限公司 | Thermal desorption device and method for repairing organic contaminated soil |
| CN112058892A (en) * | 2020-09-07 | 2020-12-11 | 生态环境部南京环境科学研究所 | Tank type thermal desorption device and desorption method based on thermal desorption auxiliary agent filling |
| CN112495501A (en) * | 2020-12-14 | 2021-03-16 | 湖南博川农业发展有限责任公司 | Building rubbish saline and alkaline land afforestation tree planting soil conditioner manufacture equipment |
| CN113145628A (en) * | 2021-04-29 | 2021-07-23 | 生态环境部南京环境科学研究所 | Thermal desorption repair device for soil polluted by POPs pesticides |
| CN113182342A (en) * | 2021-05-19 | 2021-07-30 | 山西八建集团有限公司 | Thermal desorption prosthetic devices who pollutes soil |
| CN113182342B (en) * | 2021-05-19 | 2022-07-19 | 山西八建集团有限公司 | Thermal desorption prosthetic devices who pollutes soil |
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Application publication date: 20200110 |
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