CN108500058B - Sealed heat-preservation type rotary bioreactor - Google Patents
Sealed heat-preservation type rotary bioreactor Download PDFInfo
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- CN108500058B CN108500058B CN201810320139.2A CN201810320139A CN108500058B CN 108500058 B CN108500058 B CN 108500058B CN 201810320139 A CN201810320139 A CN 201810320139A CN 108500058 B CN108500058 B CN 108500058B
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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
- B09C1/10—Reclamation of contaminated soil microbiologically, biologically or by using enzymes
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Abstract
The invention relates to a polluted soil bioremediation device, in particular to a sealed heat-preservation type rotary bioreactor for polluted soil bioremediation, wherein an inner cylinder body, a heat-preservation outer skin layer and a liquid supply pipe of a dynamic reactor synchronously rotate to form a core rotary part of the reactor; a spiral soil guide plate and a soil guide plate are arranged in the inner cylinder of the dynamic reactor and are mutually crossed and vertical; the core rotating part rotates clockwise or anticlockwise by virtue of a power transmission device, and the interior of the inner cylinder of the dynamic reactor is subjected to liquid supply and oxygen partial pressure and temperature regulation through a liquid supply pipe and a forced gas injection channel, so that a medium-temperature aerobic homogeneous stirring type incubation process for repairing the microorganisms in the polluted soil is realized; the gas in the cylinder body can be discharged after being purified by the exhaust purification tank. The invention effectively realizes the fluid type treatment mode of the solid soil, saves water resources, avoids the generation of secondary pollutants, and is efficient and environment-friendly polluted soil remediation equipment.
Description
Technical Field
The invention relates to a polluted soil bioremediation device, in particular to a sealed heat-preservation type rotary bioreactor for polluted soil bioremediation.
Background
The bioremediation technology of the polluted soil is a widely accepted soil treatment technology with economical practicability, and is favored by environmental protection workers due to the advantages of low cost, small pollution interference, convenient operation and the like. However, the time-consuming and inefficient shortcomings of microbial remediation technology have always restricted their further development in engineering applications. The main reason for this is the restriction of the metabolic activity of the microorganisms due to environmental conditions. The number, composition and biological enzyme activity of microorganisms are limited by environmental factors such as soil temperature, humidity, oxygen partial pressure and the like. In order to improve the repairing efficiency of the microorganism repairing polluted soil, the environment protection workers adopt measures such as manual adjustment and the like to enhance the porosity of the soil, increase the nutrient content of the soil and maintain the environmental conditions such as soil humidity and the like. However, the heavy manual adjustment work not only increases the manual repair cost, but also easily damages the stability of the soil environment, and causes the uneven repair efficiency. In contrast, the development of contaminated soil remediation equipment such as bioreactors has become one of the important research and development directions. At present, a slurry bioreactor is a soil remediation device which is researched and applied more, and has higher mass transfer efficiency, and the biological accessibility and the biological availability of pollutants are improved, so that the remediation effect is enhanced. However, the requirement of high water content will generate secondary pollutants such as polluted wastewater, which has the risk of expanding the pollution range and is one of the biggest factors limiting the application of the slurry bioreactor.
The horizontal rotary reactor is widely applied to industrial production of nonferrous metallurgy, refractory materials, cement, papermaking chemical industry and the like, and has a history of hundreds of years. Horizontal rotary reactors, also known as rotary kilns, are generally used industrially as a material guide. The rotary reactor has the characteristics of material conduction, uniform mixing and the like, so that the rotary reactor has the potential of being applied to the remediation of the polluted soil and being used as a polluted soil bioreactor. Therefore, through processing design, based on a horizontal rotary reactor, the rotary bioreactor equipment for restoring the undisturbed polluted soil, which integrates temperature control, aeration, mixing, liquid supplementing, nutrition regulation and control and automatic discharging, can be expected to be realized.
Disclosure of Invention
In order to meet the requirement of polluted soil remediation, the invention aims to provide a sealed heat-preservation type rotary bioreactor.
The purpose of the invention is realized by the following technical scheme:
the invention comprises a kiln head cover, a liquid supply pipe, a movable heat-insulating interlayer, a fixed heat-insulating interlayer, a movable reactor inner cylinder, a power transmission device, a kiln tail cover, a kiln head fixed reactor inner cylinder and a kiln tail fixed reactor inner cylinder, wherein the kiln head fixed reactor inner cylinder and the kiln tail fixed reactor inner cylinder are respectively arranged in the kiln head cover and the kiln tail cover; the inner wall of the inner cylinder of the dynamic reactor is provided with a spiral soil guide plate and a soil dispersing plate along the axial direction, and a plurality of liquid nozzles for replenishing liquid into the inner cylinder of the dynamic reactor are uniformly distributed in the liquid supply pipe along the axial direction; a fixed heat-insulating interlayer communicated with the movable heat-insulating interlayer is respectively arranged in the kiln head fixed reactor inner cylinder and the kiln tail fixed reactor inner cylinder; a soil feeding channel is arranged in the kiln head cover, one end of the soil feeding channel is communicated with the interior of the inner cylinder of the dynamic reactor, the other end of the soil feeding channel is communicated with a main exhaust valve arranged on the kiln head cover through an inner cylinder exhaust channel, and the third end of the soil feeding channel is communicated with a soil feeding port valve arranged on the kiln head cover; a soil discharging port valve is arranged on the kiln tail cover and is communicated with a movable inner cylinder discharge port arranged on the movable reactor inner cylinder through a channel, and a heat insulation interlayer gas injection channel for supplying gas into the movable heat insulation interlayer and the fixed heat insulation interlayer and a forced gas injection channel for supplying gas into the movable reactor inner cylinder are respectively arranged in the kiln tail cover;
wherein: the kiln tail cover is provided with a gas injection port, a ventilation temperature control chamber is arranged in the kiln tail cover, one end of a heat-insulation interlayer gas injection channel and one end of a forced gas injection channel are respectively communicated with the interiors of the movable heat-insulation interlayer and the movable reactor inner cylinder, the other end of the heat-insulation interlayer gas injection channel and the other end of the forced gas injection channel penetrate through the ventilation temperature control chamber and are communicated with the gas injection port, and a temperature control chamber heat conduction layer is arranged between the outer surfaces of the heat-insulation interlayer gas injection channel and the forced gas injection channel and the inner wall;
the soil scattering plates are arranged in a plurality of rows, and each soil scattering plate in each row is vertically connected with the spiral soil guide plate on the row;
the number of spiral turns of the spiral soil guide plate is more than or equal to two turns, and the heights of the spiral soil guide plate and the soil scattering plate which penetrate into the inner cylinder of the dynamic reactor along the radial direction are both less than or equal to one fourth of the diameter of the inner cylinder of the dynamic reactor;
the water outlet end part of each liquid nozzle is provided with a nozzle blocking cover, one end of the axial section of the nozzle blocking cover is hinged with the liquid nozzle, the other end of the axial section of the nozzle blocking cover is a free end, the lower part in each liquid nozzle is provided with a cross beam, and the nozzle blocking cover is connected with the cross beam through a spring; the free end of the nozzle baffle cover is flushed by passing liquid during liquid supplementing, and is reset through the elasticity of the spring after liquid supplementing, and is in sealing and abutting joint with the liquid nozzle; the outer edge of the nozzle baffle cover is positioned outside the outer edge of the water outlet end part of the liquid nozzle;
a heat-insulation interlayer pressure regulating valve is arranged on a fixed heat-insulation interlayer in the kiln head fixed reactor inner cylinder or a fixed heat-insulation interlayer in the kiln tail fixed reactor inner cylinder;
an exhaust purification tank is arranged in the kiln head cover, one end of the inner cylinder exhaust channel is connected with the other end of the soil feeding channel, the other end of the inner cylinder exhaust channel is communicated with an inlet of the exhaust purification tank, and an outlet of the exhaust purification tank is communicated with the main exhaust valve;
the end part of one end of the liquid supply pipe is provided with a liquid supply port communicated with a liquid supply source, and the liquid supply port is positioned at the connecting surface of the inner cylinder of the dynamic reactor and the inner cylinder of the fixed reactor at the head of the kiln or at the connecting surface of the inner cylinder of the dynamic reactor and the inner cylinder of the fixed reactor at the tail of the kiln;
the soil feeding port valve is provided with an optional exhaust valve for adjusting the gas pressure in the movable reactor inner cylinder, the kiln head fixed reactor inner cylinder and the kiln tail fixed reactor inner cylinder;
the outer surface of the heat-insulating outer skin of the inner tube of the dynamic reactor is provided with at least one rotating gear ring, the power transmission device comprises a power source arranged on the foot seat and a gear which is connected to the output shaft of the power source and is in meshing transmission with the rotating gear ring, and the power source drives the inner tube of the dynamic reactor and the liquid supply pipe to synchronously rotate through the transmission of the gear and the rotating gear ring; an inner cylinder supporting platform supported by a foot stool is arranged below the inner cylinder of the dynamic reactor, a plurality of supporting riding wheels are arranged on the inner cylinder supporting platform, rolling rings are arranged on the heat-insulating outer skins of the inner cylinder of the dynamic reactor corresponding to the supporting riding wheels, and the corresponding rolling rings are in rolling contact with the supporting riding wheels; the bottom of the kiln head cover and the bottom of the kiln tail cover are both provided with supporting foot columns, and the supporting foot columns are placed on the foot seats and supported by the foot seats.
The invention has the advantages and positive effects that:
1. the invention has the characteristic of good sealing property, and the dynamic reactor part and the fixed reactor part are connected through the dynamic sealing connection structure, thereby ensuring the stability of the soil remediation system in the reactor.
2. The invention can realize the processes of medium temperature control precise control, in-situ supply of water and nutrient, turning, mixing, full oxygen supply and the like, has the characteristic of simulating slurry flow state homogenization, can effectively enhance the mass transfer efficiency in the polluted soil, and improves the biological accessibility and the biological availability of pollutants.
3. The stable medium temperature control realized by the invention provides good temperature conditions for microbial metabolism; the realized forced ventilation oxygen supply is medium-temperature oxygen supply, and has better heat conduction efficiency and more uniform temperature field distribution; the ventilation temperature control chamber can realize synchronous forced ventilation while overturning, ensure sufficient oxygen partial pressure in the reactor barrel and promote aerobic metabolic reaction of microorganisms.
4. The invention effectively realizes the fluid type treatment mode of the solid soil, saves water resources, avoids the generation of secondary pollutants, and is efficient and environment-friendly polluted soil remediation equipment.
Drawings
FIG. 1 is a schematic view of the internal structure of the present invention;
FIG. 2 is a schematic cross-sectional view of a dynamic reactor body according to the present invention;
FIG. 3 is a schematic view of the structure of the liquid supply tube and the liquid nozzle according to the present invention;
FIG. 4 is a top cross-sectional view of a dynamic reactor body according to the present invention;
FIG. 5 is a schematic side view of a ventilated temperature controlled compartment according to the present invention;
wherein: 1 is a kiln head cover, 2 is a liquid supply pipe, 3 is a liquid nozzle, 4 is an inner cylinder pressure gauge, 5 is an interlayer pressure gauge, 6 is a rolling ring, 7 is a rotating gear ring, 8 is a moving heat-insulating interlayer, 9 is a nozzle baffle cover, 10 is a moving sealing connecting piece, 11 is a fixed connecting piece, 12 is a fixed heat-insulating interlayer, 13 is a soil feeding channel, 14 is an inner cylinder exhaust channel, 15 is a moving inner cylinder soil feeding port, 16 is a soil feeding port valve, 17 is an optional exhaust valve, 18 is an exhaust purification tank, 19 is a main exhaust valve, 20 is a supporting leg, 21 is a moving reactor inner cylinder, 22 is a spiral soil guide plate, 23 is a soil scattering plate, 24 is an inner cylinder supporting platform, 25 is a power transmission device, 26 is an inner cylinder outer skin, 27 is a cross beam, 28 is a supporting riding wheel, 29 is a kiln tail cover, 30 is a liquid gas injection port, 31 is a heat-insulating interlayer channel, 32 is a forced gas injection channel, and 33 is a total gas injection port, 34 is a movable inner cylinder soil outlet, 35 is a heat-insulating interlayer pressure regulating valve, 36 is a soil outlet valve, 37 is an exhaust purification tank support, 38 is a foot seat, 39 is a kiln head fixed reactor inner cylinder, 40 is a kiln tail fixed reactor inner cylinder, 41 is a ventilation temperature control chamber, 42 is a heat-insulating outer skin, 43 is a temperature control chamber heat conducting layer, and 44 is a spring.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in figures 1-5, the invention comprises a kiln head cover 1, a liquid supply pipe 2, a movable heat-insulation interlayer 8, a fixed heat-insulation interlayer 12, a movable reactor inner cylinder 21, a power transmission device 25, a kiln tail cover 29, a kiln head fixed reactor inner cylinder 39, a kiln tail fixed reactor inner cylinder 40 and a ventilation temperature control chamber 41, wherein the kiln head cover 1 and the kiln tail cover 29 are respectively arranged at the left end and the right end of the movable reactor inner cylinder 21, supporting foot posts 20 are respectively arranged at the bottoms of the kiln head cover 1 and the kiln tail cover 29, and the supporting foot posts 20 are arranged on a foot base 38 and supported by the foot base 38.
The inner cylinder 21 of the dynamic reactor is hollow and cylindrical, the outer part of the inner cylinder is provided with a heat-insulating outer layer skin 42, and a dynamic heat-insulating interlayer 8 is formed between the heat-insulating outer layer skin 42 and the outer surface of the inner cylinder 26 of the inner cylinder 21 of the dynamic reactor. At least one rotating gear ring 7 is arranged on the outer surface of the heat-preservation outer layer skin 42 of the dynamic reactor inner cylinder 21, the power transmission device 25 comprises a power source arranged on the foot base 38 and a gear which is connected on the output shaft of the power source and is in meshing transmission with the rotating gear ring 7, and the power source drives the dynamic reactor inner cylinder 21 to rotate through the transmission of the gear and the rotating gear ring 7. An inner cylinder supporting platform 24 supported by a foot seat 38 is arranged below the dynamic reactor inner cylinder 21, a plurality of supporting riding wheels 28 are arranged on the inner cylinder supporting platform 24, rolling rings 6 are arranged on the heat-insulating outer layer skins 42 of the dynamic reactor inner cylinder 21 corresponding to the supporting riding wheels 28, and the corresponding rolling rings 6 are in rolling contact with the supporting riding wheels 28. In the embodiment, the two supporting riding wheels 28 are arranged on the inner cylinder supporting platform 24, the two supporting riding wheels 28 are respectively provided with one rolling ring 6 on the heat-insulating outer skin 42 of the dynamic reactor inner cylinder 21, the two rolling rings 6 are symmetrically arranged on two sides of the rotating gear ring 7, and the rolling supporting function is realized when the dynamic transmission device 25 drives the dynamic reactor inner cylinder 21 to rotate. The inner wall of the inner cylinder 21 of the dynamic reactor is respectively provided with a spiral soil guide plate 22 and a soil scattering plate 23 along the axial direction, the spiral soil guide plate 22 is in a spiral shape, one side of the inner cylinder 21 of the dynamic reactor extends to the other side along the axial direction, and the number of spiral turns of the spiral soil guide plate 22 is more than or equal to two turns; the soil scattering plates 23 are arranged in a plurality of rows, and each soil scattering plate 23 in each row is vertically connected with the spiral soil guide plate 22 on the row. The heights of the spiral soil guide plate 22 and the soil scattering plate 23 which penetrate into the inner cylinder 21 of the dynamic reactor along the radial direction are both less than or equal to one fourth of the diameter of the inner cylinder 21 of the dynamic reactor.
The liquid supply pipe 2 is axially installed on the heat-insulating outer layer leather 42 of the inner cylinder 21 of the dynamic reactor, and the liquid supply pipe 2 is driven by the power transmission device 25 to synchronously rotate along with the inner cylinder 21 of the dynamic reactor. A plurality of liquid nozzles 3 for supplying liquid to the inner cylinder 21 of the dynamic reactor are uniformly distributed in the liquid supply pipe 2 along the axial direction, the water outlet end part of each liquid nozzle 3 is provided with a nozzle baffle cover 9, one end of the axial section of the nozzle baffle cover 9 is hinged with the liquid nozzle 3, the other end is a free end, the lower part in each liquid nozzle 3 is provided with a beam 27, and the nozzle baffle cover 9 is connected with the beam 27 through a spring 44; an O-shaped sealing ring is arranged on the edge of the upper surface of the nozzle baffle cover 9. Because the liquid nozzle 3 rotates along with the inner cylinder 21 of the reactor, when the reactor is inverted (namely the water outlet end of the liquid nozzle 3 is upward), the soil in the inner cylinder 21 of the reactor extrudes the nozzle blocking cover 9 to compress the spring; in order to prevent soil from entering the liquid nozzle 3 and blocking the liquid nozzle 3, the outer edge of the nozzle block cap 9 of the present invention is located outside the outer edge of the water outlet end of the liquid nozzle 3 (i.e., the diameter of the nozzle block cap 9 is larger than the diameter of the water outlet end of the liquid nozzle 3), so that even if the liquid nozzle is turned upside down, the nozzle block cap 9 is caught at the water outlet end of the liquid nozzle 3, and the nozzle block cap 9 is not pressed into the liquid nozzle 3.
The free end of the nozzle block cover 9 is flushed away by the passing liquid during liquid replenishment, and is restored by the elastic force of the spring 44 after the liquid replenishment, and is in sealing contact with the liquid nozzle 3 through the O-shaped sealing ring. The end part of one end of the liquid supply pipe 2 is provided with a liquid supply port 30 communicated with a liquid supply source, and the liquid supply port 30 is positioned at the connecting surface of the movable reactor inner cylinder 21 and the kiln head fixed reactor inner cylinder 39 or the connecting surface of the movable reactor inner cylinder 21 and the kiln tail fixed reactor inner cylinder 40; the liquid supply port 30 of the present embodiment is located at the connecting surface of the movable reactor inner cylinder 21 and the kiln tail fixed reactor inner cylinder 40.
The kiln head fixed reactor inner cylinder 39 and the kiln tail fixed reactor inner cylinder 40 are respectively arranged in the kiln head cover 1 and the kiln tail cover 29, the kiln head fixed reactor inner cylinder 39 and the kiln tail fixed reactor inner cylinder 40 are respectively connected with the kiln head cover 1 and the kiln tail cover 29 through fixed connecting pieces 11 (such as flanges), the kiln head fixed reactor inner cylinder 39 and the kiln tail fixed reactor inner cylinder 40 are respectively connected with the left end and the right end of the movable reactor inner cylinder 21 in a sealing and rotating way through movable sealing connecting pieces 10, and the movable sealing connecting pieces 10 are of a sleeving structure, such as O-shaped sealing rings. The fixed thermal insulation interlayer 12 communicated with the movable thermal insulation interlayer 8 is respectively arranged in the kiln head fixed reactor inner cylinder 39 and the kiln tail fixed reactor inner cylinder 40, the thermal insulation interlayer pressure regulating valve 35 is arranged on the fixed thermal insulation interlayer 12 in the kiln head fixed reactor inner cylinder 39 or the fixed thermal insulation interlayer 12 in the kiln tail fixed reactor inner cylinder 40, the thermal insulation interlayer pressure regulating valve 35 is arranged on the fixed thermal insulation interlayer 12 in the kiln tail fixed reactor inner cylinder 40, and the gas in the movable thermal insulation interlayer 8 and the fixed thermal insulation interlayer 12 is regulated and discharged through the thermal insulation interlayer pressure regulating valve 35, so that the gas pressure in the movable thermal insulation interlayer 8 and the fixed thermal insulation interlayer 12 is regulated and discharged. A soil feeding channel 13 is arranged in the kiln head cover 1, one end of the soil feeding channel 13 is connected with a movable inner cylinder soil feeding port 15 arranged at the circumferential central position of the left end face of the movable reactor inner cylinder 21 and is further communicated with the interior of the movable reactor inner cylinder 21, the other end of the soil feeding channel 13 is an inner cylinder exhaust channel 14, the third end of the soil feeding channel is communicated with a soil feeding port valve 16 arranged on the surface of the kiln head cover 1, an optional exhaust valve 17 for adjusting the internal gas pressure of the movable reactor inner cylinder 21, the kiln head fixed reactor inner cylinder 39 and the kiln tail fixed reactor inner cylinder 40 is arranged on the soil feeding port valve 16, and the optional exhaust valve 17 can be used as a spare exhaust port; the soil feeding channel 13 from the soil feeding port valve 16 to the soil feeding port 15 of the movable inner cylinder is inclined from top to bottom so that the polluted soil to be restored can enter the movable reactor inner cylinder 21. An exhaust purification tank 18 is arranged in the kiln head cover 1, the exhaust purification tank 18 is arranged in the kiln head cover 1 through an exhaust purification tank support 37, one end of an inner cylinder exhaust channel 14 is connected with the other end of the soil feeding channel 13, the other end of the inner cylinder exhaust channel 14 is communicated with an inlet of the exhaust purification tank 18, and an outlet of the exhaust purification tank 18 is communicated with a main exhaust valve 19 arranged on the kiln head cover 1. The surface of the kiln tail cover 29 is provided with a soil outlet valve 36, and the soil outlet valve 36 is communicated with a movable inner cylinder discharge port 34 arranged on the right end face of the movable reactor inner cylinder 21 through a channel and further communicated with the inside of the movable reactor inner cylinder 21. The channel between the movable inner cylinder discharge port 34 and the soil discharge port valve 36 is inclined from top to bottom so as to discharge the repaired soil.
The kiln tail cover 29 is internally provided with a heat insulation interlayer gas injection channel 31 for supplying gas into the movable heat insulation interlayer 8 and the fixed heat insulation interlayer 12 and a forced gas injection channel 32 for supplying gas into the movable reactor inner cylinder 21. The surface of the kiln tail cover 29 is provided with a gas injection port 33, a ventilation temperature control chamber 41 is arranged in the kiln tail cover, one end of the heat insulation interlayer gas injection channel 31 and one end of the forced gas injection channel 32 are respectively communicated with the movable heat insulation interlayer 8 and the interior of the movable reactor inner cylinder 21, the other end of the heat insulation interlayer gas injection channel 31 and the other end of the forced gas injection channel 32 are respectively communicated with the gas injection port 33 through the ventilation temperature control chamber 41, and a temperature control chamber heat conduction layer 43 is arranged between the outer surfaces of the heat insulation interlayer gas injection channel 31 and the forced gas injection channel 32 and the.
The working principle of the invention is as follows:
the core component of the invention is a barrel part of a rotary bioreactor, namely, an inner barrel 21 of a dynamic reactor is taken as a main body, and a heat-preservation outer layer skin 4 is wrapped outside the inner barrel. The contaminated soil to be restored enters the soil feeding channel 13 through the soil feeding port valve 16 and then enters the inner cylinder 21 of the dynamic reactor through the inner cylinder soil feeding port 15. The power transmission device 25 drives the dynamic reactor inner cylinder 21 and the liquid supply pipe 2 to synchronously rotate, the rotation of the dynamic reactor inner cylinder 21 is divided into clockwise rotation and anticlockwise rotation, the two rotation directions are alternately carried out, and the required rotation direction is selected to continuously rotate when soil is discharged. The contaminated soil is transported from one end of the inner tube 21 of the dynamic reactor to the other end by the spiral soil guide plate 22 and the soil scattering plate 23 in the inner tube 21 of the dynamic reactor. In the conveying process, gas can be injected into the inner cylinder 21 of the dynamic reactor, the dynamic heat-insulating interlayer 8 and the fixed heat-insulating interlayer 12 at any operation time. Respectively injecting gas into the movable heat-insulation interlayer 8 and the fixed heat-insulation interlayer 12 through a heat-insulation interlayer gas injection channel 31, and injecting gas into the movable reactor inner cylinder 21 through a forced gas injection channel 32; when the high-temperature air passes through the ventilation temperature control chamber, the air flowing in the ventilation temperature control chamber exchanges heat with the high-temperature air, so that the high-temperature air is changed into medium-temperature air, and the temperature of the medium-temperature air is adjusted by the air speed and the air volume of the ventilation temperature control chamber 41. The gas in the movable heat-insulating interlayer 8 and the fixed heat-insulating interlayer 12 is adjusted and discharged through a heat-insulating interlayer pressure adjusting valve 35, the gas in the movable reactor inner cylinder 21 is discharged through a soil feeding channel 13 and an inner cylinder exhaust channel 14 which are positioned in the kiln head cover 1, wherein an optional exhaust valve 17 is used as a standby exhaust port, and the inner cylinder exhaust channel 14 is connected with an exhaust purification tank 18 and discharges the gas through a main exhaust valve 19.
In the operation process of the invention, liquid supply is selected when the liquid nozzle 3 and the horizontal plane are in mutually vertical positions, and the liquid supply time node is determined according to the requirement of the soil treatment working condition; the supplied liquid enters the liquid supply pipe 2 through the liquid supply port 30 and then flows to each liquid nozzle 3, and the nozzle blocking cover 9 is opened to supply liquid to the inner cylinder 21 of the dynamic reactor by overcoming the elasticity of the spring 44 by using the body weight of the liquid and the supplied pressure; after the liquid supplement is completed, the nozzle cover 9 is reset by the elastic force of the spring 44, and the nozzle cover 9 is closed and isolated from the inner cylinder 21 of the dynamic reactor.
Claims (9)
1. A sealed heat preservation type rotary bioreactor is characterized in that: comprises a kiln head cover (1), a liquid supply pipe (2), a movable heat-insulating interlayer (8), a fixed heat-insulating interlayer (12), a movable reactor inner cylinder (21), a power transmission device (25), a kiln tail cover (29), a kiln head fixed reactor inner cylinder (39) and a kiln tail fixed reactor inner cylinder (40), wherein the kiln head fixed reactor inner cylinder (39) and the kiln tail fixed reactor inner cylinder (40) are respectively arranged in the kiln head cover (1) and the kiln tail cover (29), a heat-insulating outer layer skin (42) is arranged outside the movable reactor inner cylinder (21), the heat-insulating outer layer skin (42) is connected with an inner cylinder outer layer (26) on the outer surface of the movable reactor inner cylinder (21) in a sealing and rotating way, the liquid supply pipe (2) is axially arranged on the heat-insulating skin (42), two ends of the movable reactor inner cylinder (21) are respectively connected with the kiln head fixed reactor inner cylinder (39) and the kiln tail fixed reactor inner cylinder (40) in a sealing way, the dynamic reactor inner cylinder (21) drives the liquid supply pipe (2) to rotate through the driving of the power transmission device (25); a spiral soil guide plate (22) and a soil scattering plate (23) are axially arranged on the inner wall of the dynamic reactor inner cylinder (21), and a plurality of liquid nozzles (3) for replenishing liquid into the dynamic reactor inner cylinder (21) are axially and uniformly distributed in the liquid replenishing pipe (2); a fixed heat-insulating interlayer (12) communicated with the movable heat-insulating interlayer (8) is respectively arranged in the kiln head fixed reactor inner cylinder (39) and the kiln tail fixed reactor inner cylinder (40); a soil feeding channel (13) is arranged in the kiln head cover (1), one end of the soil feeding channel (13) is communicated with the interior of the movable reactor inner cylinder (21), the other end of the soil feeding channel is communicated with a main exhaust valve (19) arranged on the kiln head cover (1) through an inner cylinder exhaust channel (14), and the third end of the soil feeding channel is communicated with a soil feeding port valve (16) arranged on the kiln head cover (1); a soil outlet valve (36) is arranged on the kiln tail cover (29), the soil outlet valve (36) is communicated with a movable inner cylinder discharge hole (34) arranged on the movable reactor inner cylinder (21) through a channel, and a heat insulation interlayer gas injection channel (31) for supplying gas into the movable heat insulation interlayer (8) and the fixed heat insulation interlayer (12) and a forced gas injection channel (32) for supplying gas into the movable reactor inner cylinder (21) are respectively arranged in the kiln tail cover (29);
the kiln tail cover (29) is provided with a gas injection port (33) and a ventilation temperature control chamber (41), one ends of the heat-preservation interlayer gas injection channel (31) and the forced gas injection channel (32) are respectively communicated with the interior of the movable heat-preservation interlayer (8) and the interior of the movable reactor inner barrel (21), and the other ends of the heat-preservation interlayer gas injection channel (31) and the forced gas injection channel (32) penetrate through the ventilation temperature control chamber (41) and are communicated with the gas injection port (33), and heat conduction layers (43) of the temperature control chamber are arranged between the outer surfaces of the heat-preservation interlayer gas injection channel (31) and the forced gas injection channel (32) and the inner wall of the ventilation temperature control.
2. The sealed, insulated rotary bioreactor of claim 1, wherein: the soil scattering plates (23) are in multiple rows, and each soil scattering plate (23) in each row is vertically connected with the spiral soil guide plate (22) on the row.
3. The sealed, insulated rotary bioreactor of claim 2, wherein: the number of spiral turns of the spiral soil guide plate (22) is more than or equal to two, and the heights of the spiral soil guide plate (22) and the soil scattering plate (23) which penetrate into the inner cylinder (21) of the dynamic reactor along the radial direction are less than or equal to one fourth of the diameter of the inner cylinder (21) of the dynamic reactor.
4. The sealed, insulated rotary bioreactor of claim 1, wherein: a nozzle blocking cover (9) is arranged at the water outlet end part of each liquid nozzle (3), one end of the axial section of the nozzle blocking cover (9) is hinged with the liquid nozzle (3), the other end of the axial section of the nozzle blocking cover is a free end, a cross beam (27) is arranged at the lower part in each liquid nozzle (3), and the nozzle blocking cover (9) is connected with the cross beam (27) through a spring (44); the free end of the nozzle baffle cover (9) is flushed by passing liquid during liquid supplementing, and is reset through the elastic force of the spring (44) after liquid supplementing, and is in sealing butt joint with the liquid nozzle (3); the outer edge of the nozzle baffle cover (9) is positioned outside the outer edge of the water outlet end of the liquid nozzle (3).
5. The sealed, insulated rotary bioreactor of claim 1, wherein: and a heat-insulation interlayer pressure regulating valve (35) is arranged on the fixed heat-insulation interlayer (12) in the kiln head fixed reactor inner cylinder (39) or the fixed heat-insulation interlayer (12) in the kiln tail fixed reactor inner cylinder (40).
6. The sealed, insulated rotary bioreactor of claim 1, wherein: an exhaust purification tank (18) is arranged in the kiln head cover (1), one end of the inner cylinder exhaust channel (14) is connected with the other end of the soil feeding channel (13), the other end of the inner cylinder exhaust channel (14) is communicated with an inlet of the exhaust purification tank (18), and an outlet of the exhaust purification tank (18) is communicated with the main exhaust valve (19).
7. The sealed, insulated rotary bioreactor of claim 1, wherein: and a liquid supply port (30) communicated with a liquid supply source is arranged at the end part of one end of the liquid supply pipe (2), and the liquid supply port (30) is positioned at the connecting surface of the movable reactor inner cylinder (21) and the kiln head fixed reactor inner cylinder (39) or at the connecting surface of the movable reactor inner cylinder (21) and the kiln tail fixed reactor inner cylinder (40).
8. The sealed, insulated rotary bioreactor of claim 1, wherein: and an optional exhaust valve (17) for adjusting the internal gas pressure of the dynamic reactor inner cylinder (21), the kiln head fixed reactor inner cylinder (39) and the kiln tail fixed reactor inner cylinder (40) is arranged on the soil inlet valve (16).
9. The sealed, insulated rotary bioreactor of claim 1, wherein: the outer surface of the heat-preservation outer layer skin (42) of the dynamic reactor inner cylinder (21) is provided with at least one rotating gear ring (7), the power transmission device (25) comprises a power source arranged on a foot base (38) and a gear which is connected to a power source output shaft and is in meshing transmission with the rotating gear ring (7), and the power source drives the dynamic reactor inner cylinder (21) and the liquid supply pipe (2) to synchronously rotate through the transmission of the gear and the rotating gear ring (7); an inner cylinder supporting platform (24) supported by a foot stool (38) is arranged below the dynamic reactor inner cylinder (21), a plurality of supporting riding wheels (28) are arranged on the inner cylinder supporting platform (24), rolling rings (6) are arranged on the heat-insulating outer layer leather (42) of the dynamic reactor inner cylinder (21) corresponding to each supporting riding wheel (28), and the corresponding rolling rings (6) are in rolling contact with the supporting riding wheels (28); the bottom of the kiln head cover (1) and the bottom of the kiln tail cover (29) are both provided with supporting foot columns (20), and the supporting foot columns (20) are placed on the foot seats (38) and supported by the foot seats (38).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810320139.2A CN108500058B (en) | 2018-04-11 | 2018-04-11 | Sealed heat-preservation type rotary bioreactor |
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| CN112916610B (en) * | 2021-01-25 | 2022-08-23 | 苏州科技大学 | Soil treatment device and soil treatment method |
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| CN2476779Y (en) * | 2001-04-29 | 2002-02-13 | 杨普安 | Cylinder sectional ring kiln |
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