CN110918637A - Stirring and mixing system and process for soil remediation - Google Patents
Stirring and mixing system and process for soil remediation Download PDFInfo
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- CN110918637A CN110918637A CN201911329910.3A CN201911329910A CN110918637A CN 110918637 A CN110918637 A CN 110918637A CN 201911329910 A CN201911329910 A CN 201911329910A CN 110918637 A CN110918637 A CN 110918637A
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- soil
- stirring
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- drying
- conveyor belt
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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
- B09C1/08—Reclamation of contaminated soil chemically
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/40—Mixers using gas or liquid agitation, e.g. with air supply tubes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/40—Mixers using gas or liquid agitation, e.g. with air supply tubes
- B01F33/409—Parts, e.g. diffusion elements; Accessories
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/80—Mixing plants; Combinations of mixers
- B01F33/82—Combinations of dissimilar mixers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
- F26B17/02—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by belts carrying the materials; with movement performed by belts or elements attached to endless belts or chains propelling the materials over stationary surfaces
- F26B17/04—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by belts carrying the materials; with movement performed by belts or elements attached to endless belts or chains propelling the materials over stationary surfaces the belts being all horizontal or slightly inclined
- F26B17/045—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by belts carrying the materials; with movement performed by belts or elements attached to endless belts or chains propelling the materials over stationary surfaces the belts being all horizontal or slightly inclined the material on the belt being agitated, dispersed or turned over by mechanical means, e.g. by vibrating the belt, by fixed, rotating or oscillating elements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B23/00—Heating arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/04—Agitating, stirring, or scraping devices
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Soil Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention relates to a stirring and mixing system and a process for repairing soil, which comprises a separation and screening device for bearing soil, a drying and conveying device for bearing the soil separated and screened by the separation and screening device, a paving device for bearing the soil dried by the drying and conveying device, and a stirring and mixing device for storing the soil output by the paving device; the invention has reasonable process and is easy to master; the invention has reasonable design, full mixing, compact structure and convenient use.
Description
Technical Field
The invention relates to a stirring and mixing system and a process for soil remediation.
Background
Soil pollution can be mainly classified into heavy metal pollution, organic matter pollution, biological pollution and radioactive pollution. A large number of industrial sites and agricultural sites in China are polluted, so that the human health is seriously harmed, and the repair and treatment are needed in time. At present, the main repair technologies for the polluted site comprise an ex-situ solidification stabilization technology, an ex-situ chemical oxidation reduction technology, an ex-situ thermal desorption technology, an ex-situ soil elution technology, a cement kiln co-processing technology, an in-situ solidification stabilization technology, an in-situ oxidation reduction technology and the like. Wherein the ectopic solidification stabilization technology, the ectopic chemical oxidation-reduction technology, the in-situ solidification stabilization technology and the in-situ chemical oxidation-reduction technology need to add a certain dosage of a curing agent, an oxidizing agent or a reducing agent into soil. This requires specialized mixing and agitation equipment for soil remediation. The soil remediation and treatment in China is late, and the equipment cost specially used for remediation engineering is expensive. The stirring and mixing equipment mainly used for soil remediation at present comprises: finland ALLU soil remediation equipment and biax stirring soil improvement equipment.
Finland ALLU soil remediation equipment is mainly directed at soil in-situ remediation. The main equipment comprises a medicament tank, a control room, a stirring head and the like. The main operation flow is to dissolve and store the medicament to be added in the medicament storage tank, control the dosage of the added medicament by the control room through the delivery pipeline, and inject the reagent into the soil. The defect is that the addition amount of the medicament and the stirring time are mainly controlled by the retention time in unit area when the injection probe is manually operated and stirred, the manual error is large, and the repairable depth is also greatly limited.
The double-shaft stirring soil improvement equipment is mainly applied to soil ectopic medicament stirring restoration. The main procedures include soil pretreatment, contaminated soil preparation, contaminated soil transfer and temporary storage, and soil and medicament stirring and mixing. The method has the disadvantages that after the pretreatment and dehydration, the stirring bin needs to be added with water to adjust the water content, the screening process is relatively complex, and the stirring uniformity is not enough.
Disclosure of Invention
The invention aims to solve the technical problem of providing a stirring and mixing system and a process for repairing soil. In order to solve the problems, the technical scheme adopted by the invention is as follows:
the utility model provides a prosthetic soil is with stirring hybrid system, includes the separation sieving mechanism who accepts soil, accepts the stoving conveyer of soil after the separation sieving mechanism separation screening, accepts the stone device of soil after the stoving conveyer stoving and the stirring hybrid device of storage stone device output soil.
As a further improvement of the above technical solution:
the separating and screening device comprises a separating vibrating screen, a separating output channel arranged on one side of an inclined separating vibrating screen output end, a separating storage box which is arranged below the separating vibrating screen and stores medicament, a stirring paddle arranged in the separating storage box, a separating horizontal conveying belt section arranged in the middle of the separating storage box, a separating inclined conveying belt section of which the lower end is connected with the separating horizontal conveying belt section, a separating deformation roller arranged between the separating horizontal conveying belt section and the separating inclined conveying belt section, a separating lower blowing nozzle arranged at the upper end of the separating inclined conveying belt section and blowing to the separating inclined conveying belt section, and a separating guide scraper obliquely arranged at the separating inclined conveying belt section.
The screen mesh of the separating vibrating screen is larger than the outer diameter of the soil particles to be passed through, a vibrator is arranged on the screen mesh, and a spure for crushing the soil is arranged above the screen mesh;
the upper end of the separation guide scraper is in contact with and vertical to the lower surface of the descending section of the separation inclined conveyor belt section;
the separated storage box is stored with bioremediation agents.
The drying and conveying device comprises a drying conveying belt arranged below the separation guide scraper, a drying heater arranged below an ascending section of the drying conveying belt, a drying air suction nozzle row arranged above the ascending section of the drying conveying belt and used for being connected with a steam recoverer, a drying vibrator arranged on the ascending section of the drying conveying belt, and a drying discharging separation cutter arranged at an output end of the ascending section of the drying conveying belt and used for drying soil.
The spreading device comprises a spreading flexible telescopic connecting pipe, an upper end inlet, a spreading splayed funnel opening, a spreading guide grid plate, a spreading dispersion impeller, a spreading forward and reverse auger and a spreading auxiliary auger, wherein the input end of the spreading flexible telescopic connecting pipe is connected with the output end of the upper section of the drying conveying belt, the upper end inlet of the spreading flexible telescopic connecting pipe is smaller than the output end of the spreading lower outlet, the spreading guide grid plate is arranged at the upper end of the inner cavity of the spreading splayed funnel opening, the rotating shaft rotates vertically and is arranged at the lower end of the spreading guide grid plate, the spreading forward and reverse auger is horizontally and coaxially arranged in the outlet of the spreading lower outlet, and the spreading auxiliary auger is.
The spreading device is arranged in a walking mode, and a spreading track is longitudinally arranged below the splayed spreading funnel opening;
the stirring and mixing device comprises a stirring pool arranged below the paving track, stirring transverse rakes transversely distributed on two side walls of the stirring pool, a repairing medicament arranged in the stirring pool, a stirring bottom pipeline nozzle arranged on the side wall or/and the bottom of the stirring pool and connected with an air pump, a stirring universal draw bar arranged at one end of a splayed material paving funnel opening, a stirring tail frame transversely arranged on the stirring universal draw bar, a stirring front support frame and a stirring rear support frame which are transversely distributed at the lower end of the stirring tail frame, a stirring inclined auger arranged between the stirring front support frame and the stirring rear support frame, and a stirring spiral milling head arranged at the lower end head of the stirring inclined auger;
in a vertical plane, a triangular structure is formed by the stirring front support frame serving as a bevel edge, the stirring rear support frame serving as a right-angle edge and the stirring inclined auger serving as a right-angle edge, and the stirring inclined auger and the inclination direction are arranged in an obtuse angle;
the stirring transverse scraper comprises a scraper transverse telescopic rod arranged on the side wall of the stirring tank, a scraper support frame arranged at the end part of the scraper transverse telescopic rod, and a scraper front claw and a scraper rear claw which are symmetrically arranged on the scraper support frame in a splayed shape.
A soil remediation stirring and mixing process comprises the steps that by means of a stirring and mixing system for soil remediation, a separation and screening device for receiving soil, a drying and conveying device for receiving soil separated and screened by the separation and screening device, a paving device for receiving soil dried by the drying and conveying device and a stirring and mixing device for storing soil output by the paving device are adopted; the process comprises the following steps;
firstly, primarily repairing soil through a separation and screening device, and separating stones and construction waste in the soil by using the soil density; secondly, the drying and conveying device is used for drying the soil treated by the separating and screening device, water in the soil is gasified into gas and enters the steam recoverer, and meanwhile, the dried soil enters the stirring and mixing device through the material paving device for deep repair; and thirdly, condensing the water gas after passing through the cooler, and enabling the condensed water to enter the storage tank through a pipeline for recycling.
As a further improvement of the above technical solution:
the following procedures are carried out in the stirring and mixing process:
the third procedure is a separation screening process, firstly, soil is preliminarily repaired in a separation storage box, bioremediation agents degrade pollutants attached to the soil, intermittent stirring is carried out through a stirring paddle, and after the stirring paddle stops intermittently, the soil sinks on a separation horizontal conveyor belt section; then, the horizontal separation conveyor belt section drives the soil particles to move upwards on the inclined separation conveyor belt section; secondly, under the action of a separation lower blowing nozzle and a separation guide scraper, soil at a downward section of the separation inclined conveyor belt section is scraped and falls;
step three, drying process, firstly, separating soil at the descending section of the inclined conveyor belt section, scraping and conveying the soil to fall onto a drying conveyor belt; then, the drying heater heats the soil on the drying conveyor belt, and the drying suction nozzle discharges and adsorbs water vapor evaporated from the soil; secondly, the drying conveyor belt continues to convey soil forwards, and the drying vibrator and the drying discharging separation cutter disperse and output the soil on the drying conveyor belt;
step three, an auxiliary material process comprises the steps that firstly, soil output by the drying conveyor belt enters the paving flexible telescopic connecting pipe and enters the splayed paving funnel opening, and the soil dispersedly falls down through the paving guide grid plate; then, the spreading dispersing impeller rotates to scatter the falling soil, and the scattered soil is output through a spreading forward and reverse auger and a spreading auxiliary auger; secondly, the splayed paving funnel opening longitudinally moves along the paving track and enables the soil to fall in a dispersed mode;
step three, a stirring process, namely, firstly, in a stirring pool, repairing the soil deeply by using a repairing agent; then, a stirring bottom pipeline nozzle supplements air to the stirring pool to add a repairing agent; secondly, stirring the transverse raker for transverse stirring; thirdly, the splayed hopper mouth of the paving material drives the stirring tilting auger to move forward through the stirring universal draw bar, and meanwhile, the stirring tilting auger and the stirring spiral milling cutter head rotate forward to fully stir and mix soil, so that deep repair is realized.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic structural diagram of part one of the present invention.
Fig. 3 is a schematic structural view of part two of the present invention.
Wherein: 3. A separation and screening device; 4. a drying and conveying device; 5. a material spreading device; 6. a stirring and mixing device; 24. Separating the vibrating screen; 25. a split storage tank; 26. separating the horizontal conveyor belt segments; 27. separating the oblique conveyor belt segments; 28. separating the lower blowing nozzle; 29. separating the deforming roller; 30. separating the guide scraper; 31. drying the conveyor belt; 32. drying the heater; 33. drying the air suction nozzle row; 34. drying the vibrator; 35. drying, discharging and separating the cutter; 36. paving flexible telescopic connecting pipes; 37. paving a splayed funnel opening; 38. spreading and guiding grid plates; 39. a spreading dispersing impeller; 40. a material spreading lower outlet; 41. spreading a material forward and backward auger; 42. spreading an auxiliary auger; 43. a stirring tank; 44. paving a material track; 45. stirring the transverse scratchers; 46. transversely stretching a rod of the scraper; 47. a support frame of the scratcher; 48. raking the front claw; 49. raking the rear claw; 50. stirring a bottom pipeline nozzle; 51. a universal stirring draw bar; 52. stirring a tail frame; 53. a support frame before stirring; 54. stirring and then supporting the frame; 55. stirring and inclining the auger; 56. stirring the spiral milling head; 57. separating the output channels.
Detailed Description
As shown in fig. 1-3, the stirring and mixing system for soil remediation of the embodiment includes a separation and screening device 3 for receiving soil, which removes stones and construction waste according to the characteristics of different densities from those of soil, a biological remediation agent is used for biological decomposition, a drying and conveying device 4 for receiving soil separated and screened by the separation and screening device 3 is used for drying, a paving device 5 for receiving soil dried by the drying and conveying device 4 is used for realizing automatic auxiliary materials, and a stirring and mixing device 6 for storing soil output by the paving device 5 is used for stirring and mixing, so that upper and lower layers are mixed and stirred, and soil is fully contacted with the remediation agent;
a bioremediation agent is placed in the separation and screening device 3;
a steam recoverer is connected above the drying and conveying device 4, a condenser is installed at the output end of the steam recoverer, the top of the output end of the steam recoverer is connected with a non-condensable gas pipeline after the output end of the steam recoverer passes through the condenser, and the non-condensable gas pipeline is connected with a purifying/adsorbing/decomposer;
the bottom of the output end of the steam recoverer is connected with a condensate pipeline, after the condensate pipeline passes through an oil-water separator, a water pipeline of the oil-water separator is sent back to the separation screening device 3 through a pump station, and an oil pipeline of the oil-water separator is connected with an oil storage tank;
chemical remediation agents are placed in the agitating mixing device 6.
The stirring mixing repair system comprises a separation and screening device 3 for receiving soil, a drying and conveying device 4 for receiving the soil after the separation and screening of the separation and screening device 3, a paving device 5 for receiving the soil after the drying and conveying device 4 dries, and a stirring and mixing device 6 for storing the soil output by the paving device 5.
Referring to fig. 1 to 3, the separating and screening apparatus 3 includes a separating vibration sieve 24 disposed below an output end of an intermediate conveyor belt assembly 23, a sieve having an upper mesh larger than an outer diameter of soil particles to be passed through, a vibrator installed on the sieve, a spurt for crushing soil disposed above the sieve to crush the soil, a separating output channel 57 disposed at one side of an output end of the inclined separating vibration sieve 24 to discharge large particles, and then to treat them individually, a separating storage box 25 disposed below the separating vibration sieve 24 and storing bioremediation agents to perform preliminary remediation and to separate stones from the soil by using density, a paddle disposed in the separating storage box 25 to intermittently agitate at a low speed so that the agitated soil sinks in a gap time, a separating horizontal conveyor belt section 26 disposed at a middle position of the separating storage box 25 to store the sunk soil, A separation inclined conveyor belt section 27 with the lower end connected with the separation horizontal conveyor belt section 26 for outputting, a separation deformation roller 29 arranged between the connection of the separation horizontal conveyor belt section 26 and the separation inclined conveyor belt section 27 for guiding, a separation lower blowing nozzle 28 arranged at the upper end of the lower section of the separation inclined conveyor belt section 27 and blowing to the lower section of the separation inclined conveyor belt section 27, and a separation guide scraper 30 obliquely arranged at the lower section of the separation inclined conveyor belt section 27 so as to facilitate soil to enter the box body again;
the screen mesh of the separating vibrating screen 24 is larger than the outer diameter of the soil particles to be passed through, a vibrator is arranged on the screen mesh, and a spurt for crushing the soil is arranged above the screen mesh;
the upper end of the separation guide scraper 30 is contacted with and vertical to the lower surface of the descending section of the separation inclined conveyor belt section 27;
the separate storage tank 25 stores therein a bioremediation agent.
The drying and conveying device 4 comprises a drying conveyor belt 31 arranged below the separation guide scraper 30, a drying heater 32 arranged below an ascending section of the drying conveyor belt 31 for heating, a drying air suction nozzle exhaust 33 arranged above the ascending section of the drying conveyor belt 31 and used for being connected with a steam recoverer for collecting evaporation gas, a drying vibrator 34 arranged on the ascending section of the drying conveyor belt 31, and a drying discharging separation cutter 35 arranged at an output end of the ascending section of the drying conveyor belt 31 and used for drying soil, so that the soil is prevented from caking.
The spreading device 5 comprises a spreading flexible telescopic connecting pipe 36 of which the input end is connected with the output end of the upper section of the drying conveyor belt 31, and can realize continuous conveying when walking is realized, a spreading splayed funnel opening 37 of which the upper end inlet is smaller than the spreading lower outlet 40 and the upper end inlet is connected with the output end of the spreading flexible telescopic connecting pipe 36 realizes that soil is scattered as far as possible, a spreading guide grid plate 38 arranged at the upper end of the inner cavity of the spreading splayed funnel opening 37 prevents the soil from gathering right below the inlet, a rotating shaft vertically rotates, a spreading dispersing impeller 39 arranged at the lower end of the spreading guide grid plate 38 further realizes dispersion, a spreading forward and reverse auger 41 horizontally and coaxially arranged in the spreading lower outlet 40, and spreading auxiliary augers 42 arranged at two sides below the spreading forward and reverse auger 41 further realize dispersion;
the paving device 5 is arranged in a walking way, and a paving track 44 is longitudinally arranged below the splayed paving funnel opening 37;
the stirring and mixing device 6 comprises a stirring pool 43 arranged below the paving track 44 to realize storage of dried soil, stirring transverse rakers 45 transversely distributed on two side walls of the stirring pool 43 to realize transverse stirring, chemical remediation agents arranged in the stirring pool 43, a stirring bottom pipeline nozzle 50 arranged on the side wall or/and the bottom of the stirring pool 43 and connected with an agent pump to supplement the agents to the bottom, and a stirring universal traction rod 51 arranged at one end of the paving splayed funnel opening 37 to realize flexible traction, the stirring tail bracket 52 is transversely arranged on the stirring universal traction rod 51, the stirring front support bracket 53 and the stirring rear support bracket 54 are transversely distributed at the lower end of the stirring tail bracket 52, the stirring inclined auger 55 is arranged between the stirring front support bracket 53 and the stirring rear support bracket 54, and the stirring helical milling cutter head 56 is arranged at the lower end of the stirring inclined auger 55; the bottom and the lower part are stirred.
In a vertical plane, a triangular structure is formed by the stirring front support frame 53 serving as a bevel edge, the stirring rear support frame 54 serving as a right-angle edge and the stirring inclined auger 55 serving as a right-angle edge, the structure is firm, and the stirring inclined auger 55 and the inclination direction are arranged in an obtuse angle, so that the auger is forced downwards to avoid tilting when moving forwards;
the stirring transverse scraper 45 comprises a scraper transverse telescopic rod 46 arranged on the side wall of the stirring pool 43, a scraper support frame 47 arranged at the end part of the scraper transverse telescopic rod 46, and a scraper front claw 48 and a scraper rear claw 49 which are symmetrically arranged on the scraper support frame 47 in a splayed shape.
As shown in fig. 1, the soil remediation stirring and mixing process of the embodiment includes the following steps;
firstly, primarily repairing soil through a separation and screening device 3, and separating stones and construction waste in the soil by using the soil density; secondly, the drying and conveying device 4 is used for drying the soil treated by the separating and screening device 3, water in the soil is gasified into gas and enters the steam recoverer, and meanwhile, the dried soil enters the stirring and mixing device 6 through the paving device 5 for advanced treatment; and thirdly, the water enters the storage tank for recycling after passing through the cooler.
The following procedures are carried out in the stirring and mixing process:
step three, a separation screening process, which comprises the steps of firstly, primarily repairing soil in a separation storage box 25, degrading pollutants attached to the soil by using a bioremediation agent, intermittently stirring by using a stirring paddle, and sinking the soil onto a separation horizontal conveyor belt section 26 after the stirring paddle stops intermittently; then, the separation horizontal conveyor belt section 26 drives the soil particles to move upwards on the separation inclined conveyor belt section 27; secondly, under the action of the lower separation air blowing nozzle 28 and the separation guide scraper 30, soil at the lower section of the inclined separation conveyor belt section 27 is scraped and falls;
step three, drying process, firstly, separating soil at the descending section of the inclined conveyor belt section 27, scraping the soil and dropping the soil onto the drying conveyor belt 31; then, the drying heater 32 dries the soil on the drying conveyor belt 31, and the drying air suction nozzle row 33 absorbs the water vapor evaporated from the soil; secondly, the drying conveyor belt 31 continues to convey soil forwards, and the drying vibrator 34 and the drying discharging separation cutter 35 disperse and output the soil on the drying conveyor belt 31;
step three, an auxiliary material process, namely firstly, enabling soil output by the drying conveyor belt 31 to enter a paving flexible telescopic connecting pipe 36 and enter a paving splayed funnel opening 37, and enabling the soil to fall through a paving guide grid plate 38 in a dispersing mode; then, the spreading dispersing impeller 39 rotates to scatter the falling soil, and the scattered soil is output through a spreading forward and reverse auger 41 and a spreading auxiliary auger 42; secondly, the splayed paving funnel opening 37 moves longitudinally along the paving track 44 and enables the soil to fall dispersedly;
step three and step four, the stirring process, firstly, in the stirring tank 43, the soil is degraded by the repairing agent; then, the agitation bottom pipe nozzle 50 replenishes air into the agitation tank 43; secondly, the transverse stirring is carried out by the stirring transverse scraper 45; and thirdly, the splayed hopper mouth 37 drives the stirring and inclining auger 55 to move forward through the stirring universal traction rod 51, and meanwhile, the stirring and inclining auger 55 and the stirring spiral milling cutter head 56 rotate forward to stir the soil. The stirring device has the advantages of reasonable design, full stirring and mixing, low cost, firmness, durability, safety, reliability, simple operation, time and labor conservation, capital saving, compact structure and convenient use.
Claims (9)
1. The utility model provides a restore soil and use stirring hybrid system which characterized in that: the soil drying and mixing device comprises a separation and screening device (3) for receiving soil, a drying and conveying device (4) for receiving the soil after the separation and screening of the separation and screening device (3), a paving device (5) for receiving the soil after the drying and conveying device (4) dries, and a stirring and mixing device (6) for storing the soil output by the paving device (5).
2. The stirring and mixing system for soil remediation of claim 2, wherein: the separation and screening device (3) comprises a separation vibrating screen (24), a separation output channel (57) arranged on one side of the output end of the inclined separation vibrating screen (24), a separation storage box (25) which is arranged below the separation vibrating screen (24) and is used for storing water, a stirring paddle arranged in the separation storage box (25), and a separation horizontal conveyor belt section (26) arranged in the middle position of the separation storage box (25), the lower end of the separation inclined conveyor belt section (27) is connected with the separation horizontal conveyor belt section (26), the separation deformation roller (29) is arranged between the connection of the separation horizontal conveyor belt section (26) and the separation inclined conveyor belt section (27), the separation lower air blowing nozzle (28) is arranged at the upper end of the descending section of the separation inclined conveyor belt section (27) and blows towards the descending section of the separation inclined conveyor belt section (27), and the separation guide scraper blade (30) is obliquely arranged at the descending section of the separation inclined conveyor belt section (27).
3. The stirring and mixing system for soil remediation as claimed in claim 3, wherein the mesh of the separating vibrating screen (24) is larger than the outer diameter of the soil particles to be passed through, the screen is provided with a vibrator, and the screen is provided with spurs for crushing the soil;
the upper end of the separation guide scraper (30) is in contact with and vertical to the lower surface of the descending section of the separation inclined conveyor belt section (27);
the bioremediation agent is stored in the separation storage tank (25).
4. The stirring and mixing system for soil remediation as claimed in claim 4, wherein the drying and conveying device (4) comprises a drying conveyor belt (31) arranged below the separation guide scraper (30), a drying heater (32) arranged below an ascending section of the drying conveyor belt (31), a drying air suction nozzle row (33) arranged above the ascending section of the drying conveyor belt (31) and used for connecting a steam recoverer, a drying vibrator (34) arranged on the ascending section of the drying conveyor belt (31), and a drying discharging and separating cutter (35) arranged at an output end of the ascending section of the drying conveyor belt (31) and used for decomposing dried soil.
5. The stirring and mixing system for soil remediation as claimed in claim 4, wherein the spreading device (5) comprises a spreading flexible telescopic connecting pipe (36) with an input end connected with an output end of an ascending section of the drying conveyor belt (31), a spreading splayed funnel opening (37) with an upper end inlet smaller than a spreading lower outlet (40) and an output end of the spreading flexible telescopic connecting pipe (36), a spreading guide grid plate (38) arranged at an upper end of an inner cavity of the spreading splayed funnel opening (37), a spreading dispersion impeller (39) with a rotating shaft rotating vertically and arranged at a lower end of the spreading guide grid plate (38), a spreading forward and reverse auger (41) horizontally and coaxially arranged in the spreading lower outlet (40), and spreading auxiliary augers (42) arranged at two sides below the spreading forward and reverse auger (41).
6. The stirring and mixing system for soil remediation as claimed in claim 5, wherein the paving device (5) is arranged in a walking manner, and a paving track (44) is longitudinally arranged below the paving splayed funnel opening (37);
the stirring and mixing device (6) comprises a stirring pool (43) arranged below the paving track (44), stirring transverse rakes (45) transversely distributed on two side walls of the stirring pool (43), a chemical repairing agent arranged in the stirring pool (43), a stirring bottom pipeline nozzle (50) arranged on the side wall or/and the bottom of the stirring pool (43) and connected with an air pump, and a stirring universal traction rod (51) arranged at one end of the paving splayed funnel opening (37), the stirring tail frame (52) is transversely arranged on the stirring universal traction rod (51), the stirring front support frame (53) and the stirring rear support frame (54) are transversely distributed at the lower end of the stirring tail frame (52), the stirring inclined auger (55) is arranged between the stirring front support frame (53) and the stirring rear support frame (54), and the stirring spiral milling head (56) is arranged at the lower end of the stirring inclined auger (55);
in a vertical plane, a triangular structure is formed by the stirring front support frame (53) serving as a bevel edge, the stirring rear support frame (54) serving as a right-angle edge and the stirring inclined auger (55) serving as a right-angle edge, and the stirring inclined auger (55) and the inclination direction are arranged in an obtuse angle;
the stirring transverse scraper (45) comprises a scraper transverse telescopic rod (46) arranged on the side wall of the stirring pool (43), a scraper support frame (47) arranged at the end part of the scraper transverse telescopic rod (46), and a scraper front claw (48) and a scraper rear claw (49) which are symmetrically arranged on the scraper support frame (47) in a splayed shape.
7. A soil remediation stirring and mixing process is characterized in that a soil remediation stirring and mixing system is used, and the soil remediation stirring and mixing process comprises a separation and screening device (3) for receiving soil, a drying and conveying device (4) for receiving soil separated and screened by the separation and screening device (3), a paving device (5) for receiving soil dried by the drying and conveying device (4), and a stirring and mixing device (6) for storing soil output by the paving device (5); the process comprises the following steps;
firstly, separating stones and construction waste in soil by using soil density through a separating and screening device (3);
secondly, the soil treated by the separation and screening device (3) is dried by a drying and conveying device (4), part of water in the soil is gasified into gas and enters a steam recoverer, and meanwhile, the dried soil enters a stirring and mixing device (6) through a paving device (5) to be mixed and repaired by a medicament;
and thirdly, condensing the water vapor after passing through the cooler, and enabling the condensed water to enter the storage tank through a pipeline for recycling.
8. The soil remediation agitation mixing process of claim 7, wherein: the following procedures are carried out in the stirring and mixing process:
the third procedure is a separation screening process, firstly, the soil is subjected to primary repair treatment in a separation storage box (25), bioremediation agents degrade pollutants attached to the soil, intermittent stirring and mixing are carried out through a stirring paddle, and after the stirring paddle stops intermittently, the soil sinks on a separation horizontal conveyor belt section (26); then, the horizontal separating conveyor belt section (26) drives the soil particles to move upwards on the inclined separating conveyor belt section (27); secondly, under the action of a separation lower air blowing nozzle (28) and a separation guide scraper (30), soil at a downward section of the separation inclined conveyor belt section (27) is scraped and falls;
in the third working procedure, a drying process is carried out, wherein firstly, the soil at the descending section of the separation inclined conveyor belt section (27) is scraped and conveyed to fall onto a drying conveyor belt (31); then, the drying heater (32) heats the soil on the drying conveyor belt (31), and the drying air suction nozzle row (33) adsorbs water vapor evaporated from the soil; secondly, the drying conveyor belt (31) continues to move forwards to convey soil, and the drying vibrator (34) and the drying discharging separation cutter (35) disperse and output the soil on the drying conveyor belt (31);
step three, an auxiliary material process is carried out, wherein firstly, soil output by the drying conveyor belt (31) enters a paving flexible telescopic connecting pipe (36) and enters a paving splayed funnel opening (37), and the soil dispersedly falls down through a paving guide grid plate (38); then, the spreading dispersing impeller (39) rotates to scatter the falling soil, and the scattered soil is output through a spreading forward and reverse auger (41) and a spreading auxiliary auger (42); secondly, the splayed paving funnel opening (37) moves longitudinally along the paving track (44) and enables soil to fall dispersedly;
step three and four, a stirring process, in which a chemical remediation agent is used for deeply remedying the soil in a stirring tank (43);
firstly, adding a repairing agent into soil in a stirring pool (43) by a stirring bottom pipeline nozzle (50); then, the transverse stirring is carried out by stirring the transverse scraper (45); secondly, the splayed hopper opening (37) of the spreading material drives the stirring and inclining auger (55) to move forwards through the stirring universal draw bar (51), and meanwhile, the stirring and inclining auger (55) and the stirring spiral milling head (56) rotate forwards to fully stir and mix soil and medicament, so that deep repair is realized.
9. The stirring and mixing process for restoring soil is characterized by comprising the following steps of: by means of a stirring and mixing system for soil remediation, a separation and screening device (3) for receiving soil, a drying and conveying device (4) for receiving soil separated and screened by the separation and screening device (3), a paving device (5) for receiving soil dried by the drying and conveying device (4), and a stirring and mixing device (6) for storing soil output by the paving device (5); the process comprises the following steps;
the third procedure is a separation screening process, firstly, soil is repaired in a separation storage box (25), bioremediation agents degrade part of pollutants attached to the soil, intermittent stirring is carried out through a stirring paddle, and after the stirring paddle stops intermittently, the soil sinks on a separation horizontal conveyor belt section (26); then, the horizontal separating conveyor belt section (26) drives the soil particles to move upwards on the inclined separating conveyor belt section (27); secondly, under the action of a separation lower air blowing nozzle (28) and a separation guide scraper (30), soil at a downward section of the separation inclined conveyor belt section (27) is scraped and falls;
in the third working procedure, a drying process is carried out, wherein firstly, the soil at the descending section of the separation inclined conveyor belt section (27) is scraped and conveyed to fall onto a drying conveyor belt (31); then, the drying heater (32) dries the soil on the drying conveyor belt (31), and the drying air suction nozzle row (33) adsorbs water vapor evaporated from the soil; secondly, the drying conveyor belt (31) continues to move forwards to convey soil, and the drying vibrator (34) and the drying discharging separation cutter (35) disperse and output the soil on the drying conveyor belt (31);
step three, an auxiliary material process is carried out, wherein firstly, soil output by the drying conveyor belt (31) enters a paving flexible telescopic connecting pipe (36) and enters a paving splayed funnel opening (37), and the soil dispersedly falls down through a paving guide grid plate (38); then, the spreading dispersing impeller (39) rotates to scatter the falling soil, and the scattered soil is output through a spreading forward and reverse auger (41) and a spreading auxiliary auger (42); secondly, the splayed paving funnel opening (37) moves longitudinally along the paving track (44) and enables soil to fall dispersedly;
step three and four, a stirring process, in which a chemical remediation agent is used for deeply remedying the soil in a stirring tank (43);
firstly, adding a repairing agent into soil in a stirring pool (43) by a stirring bottom pipeline nozzle (50); then, the transverse stirring is carried out by stirring the transverse scraper (45); secondly, the splayed hopper opening (37) of the spreading material drives the stirring and inclining auger (55) to move forwards through the stirring universal traction rod (51), and meanwhile, the stirring and inclining auger (55) and the stirring spiral milling head (56) rotate forwards to fully stir and mix the soil, so that the deep repair is realized.
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| CN113735643A (en) * | 2021-09-30 | 2021-12-03 | 刘盼盼 | Preparation process of bio-organic fertilizer |
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