CN208261514U - Place heavy-metal contaminated soil abatement equipment - Google Patents
Place heavy-metal contaminated soil abatement equipment Download PDFInfo
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- CN208261514U CN208261514U CN201820455754.XU CN201820455754U CN208261514U CN 208261514 U CN208261514 U CN 208261514U CN 201820455754 U CN201820455754 U CN 201820455754U CN 208261514 U CN208261514 U CN 208261514U
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- 238000003756 stirring Methods 0.000 claims abstract description 45
- 238000010438 heat treatment Methods 0.000 claims abstract description 34
- 238000005070 sampling Methods 0.000 claims abstract description 19
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 8
- 238000001125 extrusion Methods 0.000 claims abstract description 7
- 230000008093 supporting effect Effects 0.000 claims description 67
- 238000001035 drying Methods 0.000 claims description 58
- 238000002485 combustion reaction Methods 0.000 claims description 33
- 239000007921 spray Substances 0.000 claims description 31
- 238000001816 cooling Methods 0.000 claims description 27
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 26
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 8
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- Processing Of Solid Wastes (AREA)
Abstract
It include the sampling system set gradually, formation system, heat treatment system and exhaust treatment system the utility model relates to place heavy-metal contaminated soil abatement equipment, sampling system includes sequentially connected bucket elevator and planet stirring device, it further include sampling system mobile platform, bucket elevator and planet stirring device are all set on sampling system mobile platform；The utility model is easy to remove and assembles, and occupied area is small, can build in target stains place, reduce transportation cost, reduce the risk of secondary pollution.Meanwhile the entire technique of the utility model is automatic operating, reduces human cost.2. the utility model constructs planetary stirring input mode, automation adobe extrusion forming process is provided, is suitable for all kinds of heavy-metal contaminated soils, treatment effeciency is high, good forming effect.3. the heating method that the utility model provides microwave heating and high-temperature steam combines, rapidly, thermal inertia is small, and temperature is easily controllable for heating.
Description
Technical field
The utility model relates to hazardous solid waste process fields, set more particularly to the improvement of place heavy-metal contaminated soil
It is standby.
Background technique
In recent years, with the Vicissitude of Industry Structure adjustment and city, contaminating enterprises face resettlement or closing.By
, Industrial " three Waste " draining technology outmoded in business equipment and management means are not perfect, make some poisonous and harmful heavy metallic pollutants
Foundation soil and underground water are entered, enterprise former address place is caused to become industrial pollution place.As in economically developed Pearl River Delta
Area, once the plant area of the enterprises such as densely covered hardware, chemical industry, steel, soil received serious heavy metal pollution, seriously affected
Local ecological environment, constrains expanding economy at the health for threatening people.Therefore, place heavy-metal contaminated soil
Reparation, it has also become influence people's lives, urban planning and sustainable development obtain a significant problem.
Currently, Heavy Metal Pollution Control technology can be mainly divided into such as cement solidification, plastic material packet of peripheral doses technology
Hold；Chemical remediation such as medicament stabilization technique；Biological prosthetic such as plant extraction, microorganism remediation.Due to industrial working heavy metal
The characteristics of pollution is in point pollution, i.e., there are contaminated and not contaminated situation, contaminated soil for same plant area different location
Its pollution level of earth is also not quite similar.Simultaneously, it is contemplated that the economic factors such as soil second development and utilization, it is desirable that soil remediation period
It cannot be too long.However, elution recovery technique can generate a large amount of ring waste, deals with improperly and will cause serious secondary pollution；
It is only rhizosphere range that plant extraction, which repairs depth, and repairing efficiency is long, it usually needs 5 years or more repair time；Microorganism is repaired
It is multiple more demanding to edaphic condition, limited by environmental factor larger, application range is relatively narrow.Therefore, elution technique, plant extraction,
The methods of microorganism remediation its repairing efficiency, effect are all difficult to meet the requirement of current heavy metal pollution place soil remediation.
Curing/stabilizing technology is mainly to pass through the occurrence patterns of change heavy metal in the soil to fix heavy metal, is hindered
Only its migration and diffusion in the environment, to reduce the murder by poisoning degree of heavy metal.Other opposite restorative procedures, solidification/stabilization
Change technology is widely used in heavy metal-polluted since cost is relatively low, easy for construction, repair time is short, environment long-term safety is good
Contaminate the improvement in place.Wherein, hot setting is treated as more common curing/stabilizing mode in recent years, as cement turns round
Kiln processing and brickization processing.The technology is to be fired into cement through high temperature for heavy-metal contaminated soil as a part of raw material
Or heavy metal can be not only fixed in stable mineral structure by brick, this process, eliminate the risk of heavy metal leakage,
The product being converted into can also be used as roadbed or construction material, realize the innoxious and recycling treatment of contaminated soil.
Traditional hot setting processing technique is limited by place, need to transport heavy-metal contaminated soil fixed venue into
Row is repaired, and transportation cost is higher, and may cause pollution on the way and contaminated sites in transportational process；Technique is cumbersome, equipment
The degree of automation is low, increases human cost；Brick body compression moulding technique is incomplete, and brick molding effect is poor, high rejection rate；
The heating of traditional stove is uneven, and cannot achieve being precisely controlled for temperature, be easy to cause and has not been cooked or heated long enough or burning, influences brick body quality；
Heating efficiency is low, and energy consumption is larger；Exhaust pollutant control is insufficient, especially using contaminated soil as raw material when, can generate largely
Volatile organic and heavy metal contaminants, these pollutants can not be completely removed, it would be possible to cause serious secondary dirt
Dye.
Summary of the invention
For the technical problems in the prior art, the purpose of this utility model is: providing a kind of more convenient, energy consumption
Lower automation high-temperature treatment equipment realizes the innoxious of heavy-metal contaminated soil, at recycling in a manner of environmentally friendly
It sets.
In order to achieve the above object, the utility model adopts the following technical solution for the utility model:
Place heavy-metal contaminated soil abatement equipment, including the sampling system, formation system, heat treatment system set gradually
And exhaust treatment system,
Sampling system includes sequentially connected bucket elevator and planet stirring device, further includes that sampling system is mobile flat
Platform, bucket elevator and planet stirring device are all set on sampling system mobile platform；
Formation system includes the vacuum-extruder set gradually, the first conveyer belt and the second conveyer belt, cutter's station, the first shifting
Moving platform and the second mobile platform, the top of the first conveyer belt are equipped with the first cutter for cutting off adobe from extruder,
The top of cutter's station is equipped with the second cutter for strip adobe to be cut into blocky adobe, and the second conveyer belt is located at the one of cutter's station
Side；Vacuum-extruder is located at first movement platform, and the first conveyer belt and cutter's station are located at the second mobile platform, planet stirring dress
The feed inlet of the discharge port and vacuum-extruder set connects；
Heat treatment system includes drying oven, microwave oven, cooling chamber, kiln car track and heat treatment system mobile platform,
Kiln car track sequentially passes through drying oven, microwave oven and cooling chamber, and is together in series, drying oven, microwave oven, cold
But room, kiln car track are located on heat treatment mobile platform, and drying oven, microwave oven are respectively equipped with waste gas outlet；
Exhaust treatment system includes aerobic burner, spray column and exhaust treatment system mobile platform, oxy combustion dress
Set and be located on exhaust treatment system mobile platform with spray column, oxy combustion device include sequentially connected blower, filter and
Combustion chamber, combustion chamber are equipped with catalytic bed, drying oven, microwave oven waste gas outlet connect aerobic burner
Air inlet, the gas outlet of oxy combustion device are connected with the air inlet of spray column.
Further, the top of the first conveyer belt is equipped with the first photoelectric sensor, and the first photoelectric sensor is located at the first transmission
The end of the direction of transfer of band, the first photoelectric sensor be used for incude from extruder extrusion adobe position, and send signal with
The movement of the first cutter is controlled, the top of cutter's station is equipped with the second photoelectric sensor, and the second photoelectric sensor is located at cutter's station
End, the second photoelectric sensor are used to incude the position of adobe, and send signal to control the movement of the second cutter.
Further, bucket elevator includes elevator bucket, the elevator bucket driving dress for promoting track and driving elevator bucket movement
It sets, elevator bucket driving device driving elevator bucket is moved along track is promoted；Planet stirring device include casing, cover, planetary plate with
And planet disk drive device, casing and cover cooperatively form an accommodating space, planetary plate is located in accommodating space, planetary plate packet
Including main shaft, stirring shovel component and muller component, planet disk drive device drives planetary plate around the main axis for being connected to cover,
Stirring shovel component and muller component are rotated clockwise around main shaft, and casing is equipped with feed hopper, and feed hopper is located at the one end for promoting track.
Further, drying oven is respectively equipped with the first elevator furnace in the front-end and back-end of the length direction of kiln car track
Door, the furnace body of drying oven are three layers of insulation construction, from inside to outside respectively alumina fibre plate, aluminium oxide blanket and metal shell,
Installation drying oven resistance wire, dry furnace electric thermo-couple and the first ceramics buckle in the furnace body of drying oven, the front of drying oven are equipped with the
One air inlet, the bottom of drying oven are equipped with the first lifting supporting plate, and the first ceramics buckle is set to the top of the first lifting supporting plate
On the side wall of drying oven, the top of drying oven is equipped with the first waste gas outlet, the air inlet of the first waste gas outlet and oxy combustion device
Mouthful.
Further, the upper surface of the first lifting supporting plate is equipped with track, track and kiln when the first lifting supporting plate is located at bottom
Vehicle orbital docking is moved to kiln car in the first lifting supporting plate, the track in the first lifting supporting plate, is alumina hollow ball
The track of material.When kiln car is moved to the first lifting supporting plate center along track, the first lifting supporting plate rises, and first buckles kiln
Vehicle blocks, the decline of the first lifting supporting plate.
Further, microwave oven is respectively equipped with the second lift in the front-end and back-end of the length direction of kiln car track
Fire door, the furnace body of microwave oven are three layers of insulation construction, from inside to outside respectively alumina fibre plate, aluminium oxide blanket and metal
Shell, the interior installation microwave generator of the furnace body of microwave oven, microwave heating furnace electric thermo-couple, steam spray pipe and the second ceramic card
Button, the bottom of microwave oven are equipped with the second lifting supporting plate, and the second ceramics buckle is set to the micro- of the top of the second lifting supporting plate
On the side wall of Wave heating furnace, the top of microwave oven is equipped with the second waste gas outlet, the second waste gas outlet and oxy combustion device
Air inlet.
Further, the upper surface of the second lifting supporting plate is equipped with track, track and kiln when the second lifting supporting plate is located at bottom
Vehicle orbital docking is moved to kiln car in the second lifting supporting plate, the track in the second lifting supporting plate, is alumina hollow ball
The track of material.When kiln car is moved to the second lifting supporting plate center along track, the second lifting supporting plate rises, and second buckles kiln
Vehicle blocks, the decline of the second lifting supporting plate.
Further, cooling chamber is the both ends open structure along kiln car track length direction, and the top of cooling chamber is equipped with air inducing
Machine, air-introduced machine are connected to the first air inlet of drying oven, and the side wall of cooling chamber is buckled equipped with third ceramics, and the bottom of cooling chamber is set
There is third lifting supporting plate, third ceramics buckle the top for being set to third lifting supporting plate, and the upper surface of third lifting supporting plate is equipped with
Track, when third lifting supporting plate is located at bottom, track and kiln car orbital docking, allow kiln car to be moved to third lifting supporting plate
On, the track in third lifting supporting plate is the track of alumina hollow ball material.Kiln car is moved to third lifting supporting plate along track
When center, third lifting supporting plate rises, and third buckle blocks kiln car, the decline of third lifting supporting plate.
Generally speaking, the utility model has the advantages that
1. the utility model is easy to remove and assembling, occupied area is small, can build in target stains place, reduce transport at
This, reduces the risk of secondary pollution.Meanwhile the entire technique of the utility model is automatic operating, reduces human cost.
2. the utility model constructs planetary stirring input mode, automation adobe extrusion forming process is provided, is fitted
For all kinds of heavy-metal contaminated soils, treatment effeciency is high, good forming effect.
The heating method that 3. the utility model provides microwave heating and high-temperature steam combines, heating is rapid, thermal inertia
Small, temperature is easily controllable.Microwave applicator, stove etc. itself will not be heated or largely absorb heat, and significantly reduce equipment energy consumption.
4. the utility model provides oxy combustion device, tail gas treatment process is improved, can effectively prevent hot setting
There is the secondary pollution of volatile heavy metal and organic matter in process.
Detailed description of the invention
Fig. 1 is the utility model place heavy-metal contaminated soil abatement equipment general structure schematic diagram.
Fig. 2 is the sampling system structural schematic diagram of the utility model place heavy-metal contaminated soil abatement equipment.
Fig. 3 be in Fig. 2 A to structural schematic diagram.
Fig. 4 is the formation system structural schematic diagram of the utility model place heavy-metal contaminated soil abatement equipment.
Fig. 5 be in Fig. 4 B to structural schematic diagram.
Fig. 6 is the heat treatment system structural schematic diagram of the utility model place heavy-metal contaminated soil abatement equipment.
Fig. 7 is the exhaust treatment system schematic diagram of the utility model place heavy-metal contaminated soil abatement equipment.
The utility model the utility model the utility model the utility model
Wherein Fig. 1 includes into Fig. 7:
1-1 is elevator bucket, 1-2 is to promote track；
2-1 is cover, 2-2 is spray tube, 2-3 is feed hopper, 2-4 is casing, 2-5 is motor, 2-6 is stirring shovel group
Part, 2-6-1 be stirring shovel bracket, 2-6-2 be the first stirring shovel group, 2-6-3 is the second stirring shovel group, 2-6-4 be the first countershaft,
2-6-5 is the second countershaft, 2-7 is muller component, 2-7-1 is the first muller, 2-7-2 is the second muller, 2-7-3 is first to scrape
Flitch, 2-7-4 are the second material scraping plate, 2-7-5 is muller bracket, 2-8 is Unloading sieve, 2-9 is main shaft；
3-1 is vacuum-extruder, 3-1-1 is teeter chamber, 3-1-2 is vacuum chamber, 3-1-3 is extruder chamber, 3-1-4 is crowded
Electromechanical machine, 3-1-5 are agitating shaft out, 3-1-6 is extrusion axle；3-2 is the first conveyer belt, 3-2-1 is the first cutter, 3-2-2 is
First photoelectric sensor；3-3 is cutter's station, 3-3-1 is the second cutter, 3-3-2 is the second photoelectric sensor, 3-3-3 is push plate；
3-4 is first movement platform；3-5 is the second mobile platform；3-6 is the second conveyer belt, 3-6-1 is mechanical arm；3-7 is strip
Adobe；3-8 is blocky adobe；
4-1 is kiln car, 4-2 is kiln car track, 4-3 is drying oven, 4-3-1 is the first lifting furnace door, 4-3-2 is dry
Dry furnace resistance wire, 4-3-3 are dry furnace electric thermo-couple, 4-3-4 is the first ceramics buckle, 4-3-5 is the first air inlet, 4-3-6 is
First lifting supporting plate, 4-3-7 are the first waste gas outlet, 4-4 is microwave oven, 4-4-1 is the second lifting furnace door, 4-4-2
For microwave generator, 4-4-3 be microwave heating furnace electric thermo-couple, 4-4-4 is steam spray pipe, 4-4-5 is the second ceramics buckle, 4-
4-6 is the second lifting supporting plate, 4-4-7 is the second waste gas outlet, 4-5 is cooling chamber, 4-5-1 is air-introduced machine, 4-5-2 is third pottery
Porcelain buckle, 4-5-3 are third lifting supporting plate, 4-6 is heat treatment system mobile platform；
5-1 is oxy combustion device, 5-1-1 is blower, 5-1-2 is filter, 5-1-3 is combustion chamber, 5-2 is spray
Tower, 5-3 are exhaust treatment system mobile platform.
Specific embodiment
It is next below that the utility model is described in more detail.
Embodiment 1,
As shown in Figures 1 to 7, place heavy-metal contaminated soil abatement equipment, including set gradually sampling system, forming
System, heat treatment system and exhaust treatment system, sampling system include sequentially connected bucket elevator and planet stirring device,
It further include sampling system mobile platform, bucket elevator and planet stirring device are all set on sampling system mobile platform.At
Type system include the vacuum-extruder 3-1 set gradually, the first conveyer belt 3-2, cutter's station 3-3, first movement platform 3-4 and
The top of second mobile platform 3-5, the first conveyer belt 3-2 is equipped with the first cutter 3-2-1 for cutting off adobe from extruder,
The top of cutter's station 3-3 is equipped with the second cutter 3-3-1 for strip adobe 3-7 to be cut into blocky adobe 3-8；Vacuum-extruder
3-1 is located at first movement platform 3-4, the first conveyer belt 3-2 and cutter's station 3-3 and is located at the second mobile platform 3-5, and planet stirs
The discharge port for mixing device is connect with the feed inlet of vacuum-extruder 3-1.Heat treatment system includes drying oven 4-3, microwave oven
4-4, cooling chamber 4-5, kiln car track 4-2 and heat treatment system mobile platform 4-6, kiln car track 4-2 sequentially pass through drying oven 4-
3, microwave oven 4-4 and cooling chamber 4-5, and being together in series, drying oven 4-3, microwave oven 4-4, cooling chamber 4-5,
Kiln car track 4-2 is located on heat treatment mobile platform, and drying oven 4-3, microwave oven 4-4 are respectively equipped with waste gas outlet.Tail
Gas processing system includes aerobic burner 5-1, spray column 5-2 and exhaust treatment system mobile platform 5-3, oxy combustion device
5-1 and spray column 5-2 is located on exhaust treatment system mobile platform 5-3, and oxy combustion device 5-1 includes sequentially connected wind
Machine 5-1-1, filter 5-1-2 and combustion chamber 5-1-3, are equipped with catalytic bed inside the 5-1-3 of combustion chamber, drying oven 4-3, micro-
The waste gas outlet of Wave heating furnace 4-4 connects the air inlet of aerobic burner 5-1, the gas outlet of oxy combustion device 5-1 and spray
The air inlet for drenching tower 5-2 is connected.Oxy combustion device 5-1 uses three layers of insulation construction, from inside to outside respectively alumina fibre
Plate, aluminium oxide blanket and metal shell.Connect offgas duct, the combustion air of the waste gas outlet of drying oven 4-3 and microwave oven 4-4
Pipe is connected with blower 5-1-1, and blower 5-1-1 is connected with filter 5-1-2, and filter 5-1-2 is connected with combustion chamber 5-1-3.Combustion
It burns and is equipped with catalytic bed in the middle part of the 5-1-3 of room, top is equipped with gas outlet and is connected with spray column 5-2.
As shown in figure 4, the top of the first conveyer belt 3-2 is equipped with the first photoelectric sensor 3-2-2, the first photoelectric sensor 3-
2-2 is located at the end of the direction of transfer of the first conveyer belt 3-2, and the first photoelectric sensor 3-2-2 is squeezed out for incuding from extruder
Adobe position, and send signal to control the movement of the first cutter 3-2-1, the top of cutter's station 3-3 is equipped with the second light inductance
Device 3-3-2, the second photoelectric sensor 3-3-2 is answered to be located at the end of cutter's station 3-3, the second photoelectric sensor 3-3-2 is for incuding
The position of adobe, and signal is sent to control the movement of the second cutter 3-3-1.The side of cutter's station 3-3 is equipped with the second conveyer belt
The other side of 3-6, cutter's station 3-3 are equipped with push plate 3-3-3, and the direction of motion of the second conveyer belt 3-6 is perpendicular to the first conveyer belt
3-2, the direction of motion of push plate 3-3-3 is identical as the direction of motion of the second conveyer belt 3-6, and the second conveyer belt 3-6 is located at second and moves
Moving platform 3-5.The top of second conveyer belt 3-6 is equipped with the mechanical arm 3-6-1 for moving adobe.First movement platform 3-4 and
Second mobile platform 3-5 is respectively equipped with locking system.Vacuum-extruder 3-1 includes teeter chamber 3-1-1, vacuum chamber 3-1-2, squeezes
Room 3-1-3 and driving device out, teeter chamber 3-1-1 are connected to vacuum chamber 3-1-2, and vacuum chamber 3-1-2 and extruder chamber 3-1-3 connect
It is logical, agitating shaft 3-1-5 is equipped in teeter chamber 3-1-1, extruder chamber 3-1-3 is equipped with extrusion axle 3-1-6, and extruder motor 3-1-4 drives
Dynamic agitating shaft 3-1-5 and extrusion axle 3-1-6 rotation.
As shown in Figure 2 and Figure 3, bucket elevator includes elevator bucket 1-1, promotes track 1-2 and driving elevator bucket 1-1 fortune
Dynamic elevator bucket 1-1 driving device, elevator bucket 1-1 driving device driving elevator bucket 1-1 are moved along track 1-2 is promoted；Planet stirs
Mixing device includes casing 2-4, cover 2-1, planetary plate and planet disk drive device, and casing 2-4 and cover 2-1 cooperatively form one
A accommodating space, planetary plate are located in accommodating space, and planetary plate includes main shaft 2-9, stirring shovel component 2-6 and muller component 2-
7, planet disk drive device drives planetary plate to rotate around the main shaft 2-9 for being connected to cover 2-1, stirring shovel component 2-6 and muller group
Part 2-7 is rotated clockwise around main shaft 2-9, and casing 2-4 is equipped with feed hopper 2-3, and feed hopper 2-3 is located at the one end for promoting track 1-2.
Stirring shovel component 2-6 includes stirring shovel bracket 2-6-1, the first stirring shovel group 2-6-2 and the second stirring shovel group 2-6-3, stirring shovel
Bracket 2-6-1 is rotationally connected with shovel group 2-6-3 points of cover 2-1, the first stirring shovel group 2-6-2 and the second stirring by main shaft 2-9
It is not rotationally connected with the both ends of stirring shovel bracket 2-6-1.First, which stirs shovel group 2-6-2 including the first countershaft 2-6-4 and three, is in
The stirring of triangular arranged is shoveled, and three stirrings shovel of the first stirring shovel group 2-6-2 turns counterclockwise around the first countershaft 2-6-4
Dynamic, the second stirring shovel group 2-6-3 includes the stirring shovel of the second countershaft 2-6-5 and three arrangements in equilateral triangle, and second stirs
Three stirrings shovel of shovel group 2-6-3 is mixed around the second secondary inverse time needle shaft rotation.Muller component 2-7 includes muller bracket 2-7-5, first
Muller 2-7-1 and the second muller 2-7-2, muller bracket 2-7-5 are rotationally connected with cover 2-1, the first muller by main shaft 2-9
2-7-1, the second muller 2-7-2 are rotationally connected with the both ends of muller bracket 2-7-5 respectively.Muller bracket 2-7-5 is equipped with first and scrapes
Flitch 2-7-3 and the second material scraping plate 2-7-4, the first material scraping plate 2-7-3 and the second material scraping plate 2-7-4 are close to the interior of casing 2-4
Wall setting, the first material scraping plate 2-7-3 are arranged close to the first muller 2-7-1, and the second material scraping plate 2-7-4 is close to the second muller 2-7-2
Setting.The bottom of casing 2-4 is equipped with Unloading sieve 2-8.Planet disk drive device is motor 2-5, and motor 2-5 is set to cover 2-1
Top.The top of planetary plate is equipped with spray tube 2-2.Spray tube 2-2 is set to the inside of cover 2-1, circumferentially sets along cover 2-1
It sets.Spray tube 2-2 is equipped with several water outlets, several water outlet spaced sets.
As shown in fig. 6, drying oven 4-3 is respectively equipped with first in the front-end and back-end of the length direction of kiln car track 4-2
The furnace body of lifting furnace door 4-3-1, drying oven 4-3 be three layers of insulation construction, from inside to outside respectively alumina fibre plate, oxidation
Aluminium blanket and metal shell, the interior installation drying oven resistance wire 4-3-2 of the furnace body of drying oven 4-3, dry furnace electric thermo-couple 4-3-3 and first
The front of ceramics buckle 4-3-4, drying oven 4-3 are equipped with the first air inlet 4-3-5, and the bottom of drying oven 4-3 is equipped with the first lifting
Supporting plate 4-3-6, the first ceramics buckle 4-3-4 are set on the side wall of the drying oven 4-3 of the top of the first lifting supporting plate 4-3-6,
The top of drying oven 4-3 is equipped with the first waste gas outlet 4-3-7, the air inlet of the first waste gas outlet 4-3-7 and oxy combustion device 5-1
Mouthful.The upper surface of first lifting supporting plate 4-3-6 is equipped with track, track and kiln car when the first lifting supporting plate 4-3-6 is located at bottom
Track 4-2 docking, is moved to kiln car 4-1 on the first lifting supporting plate 4-3-6, the rail on the first lifting supporting plate 4-3-6
Road is the track of alumina hollow ball material.Microwave oven 4-4 is in the front-end and back-end of the length direction of kiln car track 4-2
It is respectively equipped with the second lifting furnace door 4-4-1, the furnace body of microwave oven 4-4 is three layers of insulation construction, is distinguished from inside to outside
It is installation microwave generator 4-4-2 in the furnace body of microwave oven 4-4, micro- for alumina fibre plate, aluminium oxide blanket and metal shell
Wave heating furnace electric thermo-couple 4-4-3, steam spray pipe 4-4-4 and the second ceramics buckle 4-4-5, the bottom of microwave oven 4-4 is set
There is the second lifting supporting plate 4-4-6, the second ceramics buckle 4-4-5 to be set to the microwave heating of the top of the second lifting supporting plate 4-4-6
On the side wall of furnace 4-4, the top of microwave oven 4-4 be equipped with the second waste gas outlet 4-4-7, the second waste gas outlet 4-4-7 with
The air inlet of oxy combustion device 5-1.The upper surface of second lifting supporting plate 4-4-6 is equipped with track, as the second lifting supporting plate 4-4-6
Track is docked with kiln car track 4-2 when positioned at bottom, is moved to kiln car 4-1 on the second lifting supporting plate 4-4-6, and second liter
The track on supporting plate 4-4-6 is dropped, is the track of alumina hollow ball material.Cooling chamber 4-5 is along kiln car track 4-2 length direction
Both ends open structure, the top of cooling chamber 4-5 equipped with air-introduced machine 4-5-1, air-introduced machine 4-5-1 and drying oven 4-3 first into
Port 4-3-5 connection, the side wall of cooling chamber 4-5 are equipped with third ceramics and buckle 4-5-2, and the bottom of cooling chamber 4-5 is equipped with third liter
Supporting plate 4-5-3 drops, and third ceramics buckle 4-5-2 is set to the top of third lifting supporting plate 4-5-3, third lifting supporting plate 4-5-3
Upper surface be equipped with track, when third lifting supporting plate 4-5-3 is located at bottom, track is docked with kiln car track 4-2, makes kiln car 4-1
It can be moved on third lifting supporting plate 4-5-3, the track on third lifting supporting plate 4-5-3, be alumina hollow ball material
Track.
The specific work process of the place heavy-metal contaminated soil abatement equipment of specific the utility model are as follows:
1. the gangue centainly matched using heavy-metal contaminated soil addition is raw material, raw material is transported to row through bucket elevator
In star agitating device.
2. motor 2-5 drives planetary plate to rotate around main shaft 2-9, drive muller component 2-7 and stirring shovel component 2-6 to original
Material is crushed and is stirred, and the first material scraping plate 2-7-3 and the second material scraping plate 2-7-4 are by the original on the inner wall for being adhered to casing 2-4
Material pushes centre.Spray tube 2-2 adjusts raw material humidity by control spray flow, the raw material mixed by Unloading sieve 2-8 into
Enter vacuum extruding device.
3. raw material enters vacuum-extruder 3-1, after agitated room 3-1-1 is futher stirred, arranged into vacuum chamber 3-1-2
Air in raw material out finally enters the strip adobe 3-7 that extruder chamber 3-1-3 is pressed into consolidation.
4. triggering the first photoelectric sensor 3-2-2 after the strip adobe 3-7 squeezed out reaches setting length, starting first is cut
Knife 3-2-1 cuts off strip adobe 3-7, and is accelerated the strip adobe 3-7 of cutting being transported to cutter's station by the first conveyer belt 3-2
3-3 triggers the second photoelectric sensor 3-3-2, starts the second cutter 3-3-1 for strip adobe 3-7 and is cut into blocky adobe 3-8, pushes away
Plate 3-3-3 shifts blocky adobe 3-8 on the second conveyer belt 3-6 onto, while starting mechanical arm 3-6-1 and shifting blocky adobe 3-8
To kiln car 4-1.
5. kiln car 4-1 is moved forward along kiln car track 4-2, the first lifting furnace door 4-3-1 is risen, and kiln car 4-1 is moved to
When the drying oven middle position 4-3, the first lifting supporting plate 4-3-6, which rises, elects kiln car 4-1 to setting height, the first ceramics of starting
Buckle 4-3-4 fixes kiln car 4-1, and fire box temperature is heated to 55 DEG C~75 DEG C by drying oven resistance wire 4-3-2, keeps 2~3h,
The temperature of burner hearth is measured by dry furnace electric thermo-couple 4-3-3.
6. the adobe after drying is transferred in microwave oven 4-4 by kiln car 4-1, start microwave generator 4-4-2, by furnace
Bore temperature is heated to 900 DEG C~1100 DEG C, keeps 4~5h, the temperature of burner hearth is measured by microwave heating furnace electric thermo-couple 4-4-3.
Steam spray pipe 4-4-4 is every 0.5~1h to furnace injection high-temperature steam.
7. calcined adobe is transferred in cooling chamber 4-5 by kiln car 4-1, starting air-introduced machine 4-5-1 introduces hot-air
In drying oven 4-3, for the supplement of the hot-air to drying oven 4-3, final product is obtained after adobe is cooling.
8. the exhaust gas that blower 5-1-1 generates drying and calcination process introduces offgas duct, after tail gas is mixed with combustion air
Dust is removed into filter 5-1-2, enters combustion chamber 5-1-3 later and carries out oxy combustion removing organic exhaust gas and the property of will volatilize
Heavy metal oxidation, the gas after burning enter spray column 5-2 from the air inlet of spray column 5-2.
9. spray column 5-2 removes the volatile heavy metal after sour gas in tail gas, foul gas and oxidation, handle up to standard
Tail gas afterwards is discharged from the gas outlet of spray column 5-2.It is volatile, it is difficult to be cured in adobe since the fusing point of mercury metal is lower
Interior, the application is not suitable for mercury metal contaminated soil.
Embodiment 2,
Using the administering method of place heavy-metal contaminated soil abatement equipment, including the following steps: by sampling system,
Formation system, heat treatment system and exhaust treatment system pass through sampling system mobile platform, first movement platform 3-4, respectively
Two mobile platform 3-5, heat treatment system mobile platform 4-6, exhaust treatment system mobile platform 5-3 are moved to needs and carry out a huge sum of money
Belong to the scene that contaminated soil is administered, by the way that sample introduction system is added in heavy-metal contaminated soil and gangue 2:1~3:1 in mass ratio
Then system, is delivered to formation system and completes compression moulding, pinch-off and code after the crushing of planet stirring device, stirring and humidification
Base；Later, adobe is delivered in drying oven 4-3 along kiln car track 4-2 by kiln car 4-1, it is dry at a temperature of 55 DEG C~75 DEG C
2~3h；It is delivered in microwave oven 4-4 again, 4~5h is heated at a temperature of 900 DEG C~1100 DEG C；Finally it is delivered to cooling chamber
4-5 obtains regrown material after cooling, and it is first that the exhaust gas that drying oven 4-3 and microwave oven 4-4 are generated introduces exhaust treatment system
Oxy combustion is carried out by oxy combustion device 5-1, using spray column 5-2 filtering, absorbs then qualified discharge.Spray column 5-
2 use potassium permanganate and limewash as spray liquid, produce for removing in conventional sour gas and contaminated soil calcination process
Raw volatile heavy metal, such as arsenic.
1. by zhuzhou,hunan place heavy-metal contaminated soil reparation for, the place soil major pollutants be Pb,
Cd,Zn,As.Wherein, the maximum concentration of Pb is 12700mg/kg, and the maximum concentration of Cd is 1380mg/kg, the maximum concentration of Zn
For 30700mg/kg, the maximum concentration of As is 2470mg/kg.Using heavy-metal contaminated soil and gangue press than 2:1 mixing as
Raw material.
2. adobe is made in raw material by the administering method for adopting by reference place heavy-metal contaminated soil abatement equipment.
3. the adobe is delivered in drying oven 4-3 by kiln car 4-1,2h and 3h are separately dried in 55 DEG C, 65 DEG C, 75 DEG C；
Later in microwave oven 4-4,4h and 5h is heated respectively in 900 DEG C, 1000 DEG C, 1100 DEG C.
4. adobe is delivered to by kiln car 4-1, cooling chamber 4-5 is cooling, and hot-air is introduced drying oven by top air-introduced machine 4-5-1
In 4-3.
5. the exhaust gas that drying oven 4-3 and microwave oven 4-4 is generated enters exhaust treatment system.First pass through oxy combustion dress
The organic gas in 5-1 removing tail gas is set, then passes through spray column 5-2.Spray liquid selects potassium permanganate and limewash, for removing
Conventional sour gas and volatile heavy metal, absorptivity is up to 99% or more.
6. leach to sintered sample real according to HJ/T299-2007 solid waste Leaching leaching method
It tests.The concentrated sulfuric acid and concentrated nitric acid mixed liquor that leachate is mass ratio 2:1, pH 3.2.It weighs 50g and is sintered later sample in mentioning
It takes in bottle, 1.5L leachate is added, is placed on oscillator and leaches 18h.
7. it is close consistent in the aridity of 55 DEG C~75 DEG C, heating 2h~3h adobe according to experimental result, from energy-efficient angle
Degree considers that preferred drying temperature is 55 DEG C, drying time 2h.In original weight metallic pollution pedotheque leachate, Pb is most
Big concentration is 3.64mg/L, and the maximum concentration of Cd is 31.82mg/L, and the maximum concentration of Zn is 82.35mg/L, the maximum concentration of As
For 180.26mg/L.According to " heavy metal pollution place soil repairing standard ", heavy metal pollution place soil remediation leaching concentration
Standard limited value Pb be 0.05mg/L, Cd 0.005mg/L, Zn 2mg/L, As 0.1mg/L.Sintered sample leaches
In liquid, the concentration of four heavy metal species is in 0.001mg/L or less.Heavy metals immobilization rate is more than 99.99%.
Embodiment 3,
1. by taking place heavy-metal contaminated soil at zhuzhou,hunan two is repaired as an example, first place soil major pollutants difference
For Pb, Cd, Zn, As, maximum concentration is respectively Pb:3.64mg/L, Cd:31.82mg/L, Zn in pedotheque leachate:
82.35mg/L As:180.26mg/L；Second place major pollutants are Pb and Zn, maximum concentration point in pedotheque leachate
It Wei not Pb:15.62mg/L, Zn:135.86mg/L.Contaminated soil of site 1:3,1:5 and 1:7 in mass ratio at first, second two are mixed
It closes uniform.
2. being used as raw material after the soil mixed is mixed with gangue 2:1 in mass ratio and 3:1.
3. green brick forming process is referring to embodiment 1.
4. adobe is delivered in drying oven 4-3 by kiln car 4-1, in 55 DEG C of dry 2h；Later in microwave oven 4-4, in
1100 DEG C of calcining 5h.
5. vent gas treatment process is referring to embodiment 2.
6. leach to sintered sample real according to HJ/T299-2007 solid waste Leaching leaching method
It tests.Leaching process is referring to embodiment 2.
7. the heavy-metal contaminated soil of different ratio processing, the heavy metal concentration in leachate reach " heavy metal pollution
Place soil repairing standard ".Show to repair the heavy-metal contaminated soil of different ratio by the utility model, weight
Metal is fully cured in agglomerated material, will not be percolated out.
Above-described embodiment is the preferable embodiment of the utility model, but the embodiments of the present invention is not by above-mentioned
The limitation of embodiment, it is made under other any spiritual essence and principles without departing from the utility model to change, modify, replacing
In generation, simplifies combination, should be equivalent substitute mode, is included within the protection scope of the utility model.
Claims (8)
1. place heavy-metal contaminated soil abatement equipment, it is characterised in that: including set gradually sampling system, formation system,
Heat treatment system and exhaust treatment system,
Sampling system includes sequentially connected bucket elevator and planet stirring device, further includes sampling system mobile platform, bucket
Formula elevator and planet stirring device are all set on sampling system mobile platform；
Formation system includes that the vacuum-extruder set gradually, the first conveyer belt and the second conveyer belt, cutter's station, first movement are flat
Platform and the second mobile platform, the top of the first conveyer belt are equipped with the first cutter for cutting off adobe from extruder, clip
The top of platform is equipped with the second cutter for strip adobe to be cut into blocky adobe, and the second conveyer belt is located at the side of cutter's station；
Vacuum-extruder is located at first movement platform, and the first conveyer belt and cutter's station are located at the second mobile platform, planet stirring device
Discharge port and vacuum-extruder feed inlet connect；
Heat treatment system includes drying oven, microwave oven, cooling chamber, kiln car track and heat treatment system mobile platform, kiln car
Track sequentially passes through drying oven, microwave oven and cooling chamber, and is together in series, drying oven, microwave oven, cooling
Room, kiln car track are located on heat treatment mobile platform, and drying oven, microwave oven are respectively equipped with waste gas outlet；
Exhaust treatment system includes aerobic burner, spray column and exhaust treatment system mobile platform, oxy combustion device and
Spray column is located on exhaust treatment system mobile platform, and oxy combustion device includes sequentially connected blower, filter and burning
Room, combustion chamber are equipped with catalytic bed, drying oven, microwave oven waste gas outlet connect the air inlet of aerobic burner
Mouthful, the gas outlet of oxy combustion device is connected with the air inlet of spray column.
2. heavy-metal contaminated soil abatement equipment in place described in accordance with the claim 1, it is characterised in that: the first conveyer belt it is upper
Side is equipped with the first photoelectric sensor, and the first photoelectric sensor is located at the end of the direction of transfer of the first conveyer belt, the first light inductance
Answer device for incude the adobe position from extruder extrusion, and send signal to control the movement of the first cutter, cutter's station it is upper
Side is equipped with the second photoelectric sensor, and the second photoelectric sensor is located at the end of cutter's station, and the second photoelectric sensor is for incuding brick
The position of base, and signal is sent to control the movement of the second cutter.
3. heavy-metal contaminated soil abatement equipment in place described in accordance with the claim 1, it is characterised in that: bucket elevator includes
Elevator bucket promotes track and drives the elevator bucket driving device of elevator bucket movement, and elevator bucket driving device drives elevator bucket edge
Promote track movement；Planet stirring device includes casing, cover, planetary plate and planet disk drive device, and casing and cover are matched
It closes and forms an accommodating space, planetary plate is located in accommodating space, and planetary plate includes main shaft, stirring shovel component and muller group
Part, planet disk drive device drive planetary plate around the main axis for being connected to cover, and stirring shovel component and muller component are around main shaft
It rotates clockwise, casing is equipped with feed hopper, and feed hopper is located at the one end for promoting track.
4. heavy-metal contaminated soil abatement equipment in place described in accordance with the claim 1, it is characterised in that: drying oven is in kiln car rail
The front-end and back-end of the length direction in road are respectively equipped with the first lifting furnace door, and the furnace body of drying oven is three layers of insulation construction,
It is from inside to outside respectively alumina fibre plate, aluminium oxide blanket and metal shell, installation drying oven resistance wire in the furnace body of drying oven,
Dry furnace electric thermo-couple and the first ceramics buckle, the front of drying oven are equipped with the first air inlet, and the bottom of drying oven is equipped with first liter
Supporting plate drops, and the first ceramics buckle is set on the side wall of the drying oven of the top of the first lifting supporting plate, and the top of drying oven is equipped with
First waste gas outlet, the air inlet of the first waste gas outlet and oxy combustion device.
5. place heavy-metal contaminated soil abatement equipment according to claim 4, it is characterised in that: the first lifting supporting plate
Upper surface is equipped with track, track and kiln car orbital docking when the first lifting supporting plate is located at bottom, and kiln car is allow to be moved to the
In one lifting supporting plate, track in the first lifting supporting plate is the track of alumina hollow ball material.
6. heavy-metal contaminated soil abatement equipment in place described in accordance with the claim 1, it is characterised in that: microwave oven is in kiln
The front-end and back-end of the length direction in track road are respectively equipped with the second lifting furnace door, and the furnace body of microwave oven is three layers of guarantor
Warm structure, respectively alumina fibre plate, aluminium oxide blanket and metal shell, the interior installation of the furnace body of microwave oven are micro- from inside to outside
Wave producer, microwave heating furnace electric thermo-couple, steam spray pipe and the second ceramics buckle, the bottom of microwave oven are equipped with second liter
Supporting plate drops, and the second ceramics buckle is set on the side wall of the microwave oven of the top of the second lifting supporting plate, microwave oven
Top is equipped with the second waste gas outlet, the air inlet of the second waste gas outlet and oxy combustion device.
7. place heavy-metal contaminated soil abatement equipment according to claim 6, it is characterised in that: the second lifting supporting plate
Upper surface is equipped with track, track and kiln car orbital docking when the second lifting supporting plate is located at bottom, and kiln car is allow to be moved to the
In two lifting supporting plates, track in the second lifting supporting plate is the track of alumina hollow ball material.
8. heavy-metal contaminated soil abatement equipment in place described in accordance with the claim 1, it is characterised in that: cooling chamber is along kiln car
The top of the both ends open structure of track length direction, cooling chamber is equipped with air-introduced machine, the first air inlet of air-introduced machine and drying oven
The side wall of connection, cooling chamber is buckled equipped with third ceramics, and the bottom of cooling chamber is equipped with third lifting supporting plate, and third ceramics buckle is set
It is placed in the top of third lifting supporting plate, the upper surface of third lifting supporting plate is equipped with track, when third lifting supporting plate is located at bottom
Track and kiln car orbital docking, are moved to kiln car in third lifting supporting plate, the track in third lifting supporting plate, for oxidation
The track of aluminium hollow ball material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820455754.XU CN208261514U (en) | 2018-04-02 | 2018-04-02 | Place heavy-metal contaminated soil abatement equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820455754.XU CN208261514U (en) | 2018-04-02 | 2018-04-02 | Place heavy-metal contaminated soil abatement equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208261514U true CN208261514U (en) | 2018-12-21 |
Family
ID=64677560
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820455754.XU Withdrawn - After Issue CN208261514U (en) | 2018-04-02 | 2018-04-02 | Place heavy-metal contaminated soil abatement equipment |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108453122A (en) * | 2018-04-02 | 2018-08-28 | 广东省生态环境技术研究所 | Place heavy-metal contaminated soil abatement equipment and its administering method |
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2018
- 2018-04-02 CN CN201820455754.XU patent/CN208261514U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108453122A (en) * | 2018-04-02 | 2018-08-28 | 广东省生态环境技术研究所 | Place heavy-metal contaminated soil abatement equipment and its administering method |
| WO2019192241A1 (en) * | 2018-04-02 | 2019-10-10 | 广东省生态环境技术研究所 | Site heavy metal contaminated soil treatment equipment and treatment method therefor |
| US11358189B2 (en) | 2018-04-02 | 2022-06-14 | Guangdong Institute Of Eco-Environmental Science & Technology | Site heavy metal contaminated soil treatment equipment and treatment method therefor |
| CN108453122B (en) * | 2018-04-02 | 2023-12-12 | 广东省生态环境技术研究所 | Site heavy metal contaminated soil treatment equipment and treatment method thereof |
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