CN106830606B - Comprehensive treatment equipment for sludge hydrolysis, humic, catalysis and drying - Google Patents

Comprehensive treatment equipment for sludge hydrolysis, humic, catalysis and drying Download PDF

Info

Publication number
CN106830606B
CN106830606B CN201710203791.1A CN201710203791A CN106830606B CN 106830606 B CN106830606 B CN 106830606B CN 201710203791 A CN201710203791 A CN 201710203791A CN 106830606 B CN106830606 B CN 106830606B
Authority
CN
China
Prior art keywords
shaft
stirring
gear
hollow
tank
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201710203791.1A
Other languages
Chinese (zh)
Other versions
CN106830606A (en
Inventor
陈凌霄
张捷
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sichuan Gaobo Environmental Investment Technology Co ltd
Original Assignee
Sichuan Gaobo Environmental Investment Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sichuan Gaobo Environmental Investment Technology Co ltd filed Critical Sichuan Gaobo Environmental Investment Technology Co ltd
Priority to CN201710203791.1A priority Critical patent/CN106830606B/en
Publication of CN106830606A publication Critical patent/CN106830606A/en
Application granted granted Critical
Publication of CN106830606B publication Critical patent/CN106830606B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00—Treatment of sludge; Devices therefor
    • C02F11/10—Treatment of sludge; Devices therefor by pyrolysis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05—Stirrers
    • B01F27/11—Stirrers characterised by the configuration of the stirrers
    • B01F27/19—Stirrers with two or more mixing elements mounted in sequence on the same axis
    • B01F27/192—Stirrers with two or more mixing elements mounted in sequence on the same axis with dissimilar elements
    • B01F27/1921—Stirrers with two or more mixing elements mounted in sequence on the same axis with dissimilar elements comprising helical elements and paddles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/21—Mixers with rotary stirring devices in fixed receptacles; Kneaders characterised by their rotating shafts
    • B01F27/2122—Hollow shafts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/23—Mixers with rotary stirring devices in fixed receptacles; Kneaders characterised by the orientation or disposition of the rotor axis
    • B01F27/232—Mixers with rotary stirring devices in fixed receptacles; Kneaders characterised by the orientation or disposition of the rotor axis with two or more rotation axes
    • B01F27/2322—Mixers with rotary stirring devices in fixed receptacles; Kneaders characterised by the orientation or disposition of the rotor axis with two or more rotation axes with parallel axes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
    • B01F27/70—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
    • B01F27/72—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with helices or sections of helices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/50—Mixing receptacles
    • B01F35/53—Mixing receptacles characterised by the configuration of the interior, e.g. baffles for facilitating the mixing of components
    • B01F35/531—Mixing receptacles characterised by the configuration of the interior, e.g. baffles for facilitating the mixing of components with baffles, plates or bars on the wall or the bottom
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/90—Heating or cooling systems
    • B01F35/93—Heating or cooling systems arranged inside the receptacle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/90—Heating or cooling systems
    • B01F35/95—Heating or cooling systems using heated or cooled stirrers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/30—Driving arrangements; Transmissions; Couplings; Brakes
    • B01F2035/35—Use of other general mechanical engineering elements in mixing devices
    • B01F2035/351—Sealings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/90—Heating or cooling systems
    • B01F2035/99—Heating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
    • B01F2101/305—Treatment of water, waste water or sewage
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/002—Construction details of the apparatus
    • C02F2201/004—Seals, connections

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Accessories For Mixers (AREA)

Abstract

The invention relates to a comprehensive treatment device for sludge hydrolysis, humic, catalysis and drying, which comprises a base, a heating stirring tank, a stirring structure and a heating structure, wherein the stirring structure comprises a stirring part and a driving part, the driving part is arranged on the base, the stirring part is positioned in the tank and is connected with the driving part, the stirring part comprises a hollow screw shaft and at least one hollow stirring shaft, the driving part comprises a motor, a speed reducer and a gear transmission assembly, the heating structure comprises an interlayer arranged on the inner wall of the tank and a cavity arranged on the lower side of a collecting plate, the lower side of the tank is provided with a liquid inlet pipe communicated with the interlayer, the upper side of the tank is provided with a liquid outlet pipe communicated with the interlayer, the lower side of the collecting plate is provided with a plurality of liquid separation plates with uniform intervals, the edges of the liquid separation plates are hermetically connected with sealing plates to form a plurality of cavities, and the liquid separation plates positioned in the middle position are provided with liquid through holes. The invention has the advantages that: the original scattered, long-lasting and low-efficiency sludge treatment process is effectively and intensively treated by one device, so that the treatment efficiency is high and the treatment effect is good.

Description

Comprehensive treatment equipment for sludge hydrolysis, humic, catalysis and drying
Technical Field
The invention relates to the technical field of sludge treatment, in particular to comprehensive treatment equipment for sludge hydrolysis, humic, catalysis and drying processes.
Background
The sludge is a byproduct generated in the sewage treatment process, the components of the sludge are extremely complex, and the sludge mainly contains about 80-90% of water, other organic matters, various trace elements, pathogenic microorganisms, parasitic ova, heavy metals and the like which can be recycled and can cause adverse effects on the environment. Harmless and resource treatment of sludge is an important subject for environmental protection worldwide.
Traditional sludge treatment methods include sea throwing (or direct discharge), landfill and composting, but all have the disadvantages of negative effects on the environment (water pollution, soil pollution, air pollution and the like) and occupation and waste of space resources (land and water fields) and the like, and have been forbidden or abandoned by more and more industrial countries.
Several sludge treatment methods and apparatuses have been developed successively so that it is desired to reduce the content of harmful substances in sludge and to recycle it for the second time by sludge treatment. Among them, the thermal hydrolysis treatment of sludge is an effective sludge treatment means. The existing sludge thermal hydrolysis treatment method mainly has the following defects: (1) The sludge treatment process is long, the time consumption is long, the power consumption is high, and the treatment efficiency is low; (2) And in the hydrolysis process, the sludge is heated unevenly, the hydrolysis is not thorough, and the treatment effect is poor.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, creatively provides the centralized treatment equipment, can complete the treatment process which can be solved by a plurality of equipment in the past, such as hydrolysis, humic, catalysis, drying and the like of the sludge just by one-time heating, is sludge treatment equipment with high treatment efficiency and good treatment effect, and greatly reduces the energy consumption required by sludge treatment and the secondary environmental pollution problem in the treatment process.
The aim of the invention is achieved by the following technical scheme: the comprehensive treatment equipment for sludge hydrolysis, humic, catalysis and drying comprises a base, a sealed hydrolysis humic tank, a stirring structure and a heating structure,
the sealed hydrolysis humic acid tank comprises a tank body, a feeding pipe, a discharging pipe and a collecting plate, wherein the tank body is horizontally arranged on a base, the feeding pipe is arranged on one side above the tank body, the discharging pipe is arranged on the other side below the tank body, the collecting plate is arranged on the lower part of the inner side of the tank body, the collecting plate is a curved surface groove with two high sides and a low middle, and a screw groove is axially arranged in the middle of the collecting plate;
the stirring structure comprises a stirring part and a driving part, wherein the driving part is arranged on a base, the stirring part is positioned in a tank body and is connected with the driving part, the stirring part comprises a hollow screw shaft and at least one hollow stirring shaft, the hollow screw shaft is arranged in a screw groove, the hollow stirring shaft is arranged on the tank body in parallel relative to the hollow stirring shaft, rotary joints are respectively arranged at the shaft ends of the hollow stirring shaft and the hollow screw shaft, the driving part comprises a motor, a speed reducer and a gear transmission assembly, the output end of the motor is connected with the input end of the speed reducer, the output end of the speed reducer is connected with the input end of the gear transmission assembly, and the output end of the gear transmission assembly is respectively connected with the hollow stirring shaft and the hollow screw shaft in a transmission way;
the heating structure comprises an interlayer arranged on the inner wall of the tank body and a cavity arranged on the lower side of the collecting plate, a liquid inlet pipe communicated with the interlayer is arranged on the lower side of the tank body, a liquid outlet pipe communicated with the interlayer is arranged on the upper side of the tank body, a plurality of liquid separating plates with uniform intervals are arranged on the lower side of the collecting plate, sealing plates are hermetically connected at the edges of the liquid separating plates to form a plurality of cavities, liquid passing holes are formed in the liquid separating plates positioned in the middle position, and the cavities are communicated with the interlayer through the liquid passing holes.
The base comprises a frame, a front supporting frame and a rear supporting frame, wherein the front supporting frame is fixed on the front part of the upper surface of the frame, the rear supporting frame is fixed on the rear part of the upper surface of the frame, and the hollow screw shaft and the hollow stirring shaft are respectively fixed on the front supporting frame and the rear supporting frame through cooling type bearing seats.
The hollow stirring shaft comprises a shaft body and stirring blades, the shaft body is of a hollow structure, a plurality of groups of through holes are formed in the side wall of the shaft body along the axis, the through holes are formed in the radial direction of the shaft body, heating cavities are formed in the stirring blades, the stirring blades are arranged on the side wall of the shaft body, and the heating cavities of the stirring blades are at least communicated with one through hole.
The stirring blade is internally provided with a liquid return pipe, one end of the liquid return pipe extends into one side of the heating cavity away from the shaft body, and the other end of the liquid return pipe penetrates through the through hole and penetrates into the shaft body.
The middle of the tank body is of a cylindrical structure, two ends of the tank body are of cambered surface structures, the outer wall of the cylindrical structure is coated with a tank wall heat insulation layer, two ends of the cylindrical structure are provided with partition plates, the partition plates and the cambered surface structures form a heat insulation cavity, and the heat insulation cavity is filled with a tank end heat insulation layer.
The stirring part is characterized in that a sealing structure is arranged between the stirring part and the side wall of the tank body, the sealing structure comprises a sealing body, a packing seal and a mechanical seal, a cavity is formed in the sealing body, one side, close to the inside of the tank body, of the sealing body is provided with a packing box, the packing box is filled with the packing seal, a packing gland is tightly pressed in the packing box by locking the end part of the sealing body, the mechanical seal is arranged on the other side of the sealing body, an air inlet pipe communicated with the cavity is connected to the side wall of the sealing body, a threaded hole is further formed in the side wall of the sealing body, and a plug is arranged in the threaded hole.
The cooling type bearing seat comprises a seat body, a shaft sleeve and a bearing, wherein the shaft sleeve is sleeved on the shaft, the inner ring of the bearing is installed in the middle of the shaft sleeve, the outer ring of the bearing is installed in the seat body, the seat body is fixed on a front support frame or a rear support frame, a front end cover is installed on the front side of the seat body, a front sealing element is installed between the central position of the front end cover and the shaft sleeve, a front sealing gland is tightly pressed in the front end cover, a rear end cover is installed on the rear side of the seat body, a rear sealing element is installed between the central position of the rear end cover and the shaft sleeve, a rear sealing gland is tightly pressed in the rear end cover, a closed cavity is jointly formed by the seat body, the shaft sleeve, the front end cover, the front sealing element, the rear end cover and the rear sealing element, and a cooling liquid inlet joint and a cooling liquid outlet joint which are communicated with the closed cavity are respectively connected to two sides of the seat body.
The shaft sleeve comprises a bearing base, annular grooves and cooling through grooves, wherein the annular grooves are respectively arranged on two sides of the bearing base, the annular grooves extend towards the radial direction of the bearing base, a plurality of cooling through grooves are axially arranged on the end face of the bearing base, the cooling through grooves are communicated with the annular grooves, two ends of each cooling through groove are plugged by a sealing plug head, a bearing baffle ring and a check ring groove are further arranged on the bearing base between the two annular grooves, one side of an inner ring of the bearing is pressed on the side wall of the bearing baffle ring, and the other side of the inner ring of the bearing is axially positioned by a bearing check ring arranged in the check ring groove.
The two hollow stirring shafts are positioned on the same horizontal plane and are symmetrical relative to the hollow screw shaft.
The gear transmission assembly comprises a first gear, a second gear, a third gear, a fourth gear and a fifth gear, wherein the first gear is arranged on an output shaft of the speed reducer, the second gear is arranged on the hollow screw shaft, the first gear is meshed with the second gear, the third gear and the fourth gear are coaxially arranged on one hollow stirring shaft, the third gear is meshed with the second gear, the fifth gear is arranged on the other hollow stirring shaft, and the fifth gear is meshed with the fourth gear.
The invention has the following advantages:
1. the hollow stirring shaft and the hollow screw shaft are arranged in the tank body, the rotary joints are respectively arranged at the two ends of the hollow stirring shaft and the hollow screw shaft, high-temperature liquid is respectively introduced into the hollow stirring shaft and the hollow screw shaft through the rotary joints while stirring during sludge treatment, the high-temperature liquid is also introduced into the interlayer of the inner wall of the tank body, the sludge in the tank is heated simultaneously, the stirring and heating effect is realized, and after the high-temperature liquid is introduced into the hollow stirring shaft and the hollow screw shaft, the surface wall temperature is high, the inside of the sludge can be directly heated, the heating speed is high, and the treatment efficiency is improved.
2. After the sludge enters the tank body from the feeding pipe, the sludge moves towards the discharging pipe along the material collecting plate under the action of the spiral pushing of the hollow spiral shaft under the action of gravity, and then moves towards one side of the feeding pipe from one side of the discharging pipe under the action of reverse stirring of the hollow stirring shaft, so that the sludge is repeatedly stirred and heated fully, and the treatment effect is good.
3. A plurality of cavities are separated from the lower side of the collecting plate through a liquid separation plate and a sealing plate, and high-temperature liquid flows into the cavities to heat the heat collecting plate, so that the heating efficiency is further improved.
4. The stirring vane of the hollow stirring shaft is also of a hollow structure, and high-temperature liquid flows back to the shaft body from the liquid return pipe after entering the hollow structure, so that the high-temperature liquid effectively flows in the stirring vane, and is prevented from entering the stirring vane and being retained in the heating cavity.
5. The insulation layer is filled to the cambered surface structure at jar body both ends and baffle inboard, jar body lateral wall cladding insulation layer, and on the one hand is when carrying out the heat preservation construction to the cambered surface structure, and is more convenient, and on the other hand mud can not be detained in the cambered surface structure when jar internal removal, appears flowing the dead angle.
6. Set up seal structure between axle and the jar body, because when carrying out sludge treatment, the jar internal pressure is higher, mud leaks from the packing seal easily, after improving, set up the cavity in sealed this body, and let in high-pressure gas in to the cavity, play the blowback effect to jar internal portion, reduce packing seal's burden, the life of extension packing seal, still realize checking packing seal's validity, unpack the end cap back, if have silt to blow out from the screw hole, then indicate packing seal inefficacy, need in time change packing seal, whole inspection need not dismantle other parts, and is easy to operate, it is convenient.
7. Because the hollow stirring shaft and the hollow screw shaft are both required to be filled with high-temperature liquid, after the shaft end is provided with the bearing to start working, the bearing is easy to be blocked due to the temperature difference between the inner and outer surfaces of the bearing, the service life of the bearing is greatly shortened, and the cooling liquid enters the closed cavity from the seat body and flows into the annular groove and the cooling through groove in sequence to directly cool the shaft sleeve, so that the bearing is not easy to be blocked, and the service life of the bearing is prolonged.
8. The power transmission is carried out by adopting a plurality of gears, and the hollow stirring shaft and the hollow screw shaft synchronously rotate, so that the sludge can form good circulation flow in the front and back of the tank body and up and down, and can not be backlogged at a certain part of the tank body.
9. The sludge treatment process is always in a sealed state, so that the useful components are completely recovered, and the sludge treatment process is free from leakage and pollution.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of the internal front structure of the heating and stirring tank;
FIG. 3 is a schematic view of the structure of the tank;
FIG. 4 is a schematic view of the internal side structure of the heating and stirring tank;
FIG. 5 is a schematic view of the structure of the collecting plate;
FIG. 6 is a schematic structural view of a hollow stirring shaft;
FIG. 7 is a schematic view of a seal structure;
FIG. 8 is a schematic view of a cooling-type bearing block;
FIG. 9 is a schematic view showing an internal structure of a cooling type bearing block;
FIG. 10 is a schematic structural view of a bushing;
FIG. 11 is a schematic structural view of a gear assembly;
in the figure: 1-base, 101-frame, 102-front support, 103-rear support, 2-heating stirring tank, 201-tank body, 202-feed pipe, 203-feed valve, 204-discharge pipe, 205-discharge valve, 206-tank wall insulation layer, 207-interlayer, 208-liquid inlet pipe, 209-liquid outlet pipe, 210-partition, 211-tank end insulation layer, 212-collecting plate, 213-liquid partition, 214-liquid passing hole, 215-sealing plate, 216-screw groove, 3-hollow stirring shaft, 301-shaft body, 302-through hole, 303-stirring blade, 304-heating cavity, 305-liquid return pipe, 4-hollow screw shaft, 5-sealing structure, 501-sealing body, 502-cavity, 503-packing seal, 504-packing gland, 505-machine seal, 506-intake pipe, 507-plug, 6-cooling type bearing seat, 601-seat body, 602-shaft sleeve, 60201-bearing seat, 60202-ring groove, 60203-bearing retainer ring, 60204-retainer ring groove, 60205-cooling through groove, 603-bearing, 604-front end cap, 605-front seal, 606-front seal gland, 607-rear end cap, 608-rear seal, 609-rear seal gland, 610-bearing retainer ring, 611-coolant inlet joint, 612-coolant outlet joint, 7-motor, 8-reducer, 9-gear assembly, 901-first gear, 902-second gear, 903-third gear, 904-fourth gear, 905-fifth gear.
Detailed Description
The present invention will be further described with reference to the accompanying drawings, but the scope of the present invention is not limited to the following.
As shown in fig. 1, fig. 2 and fig. 4, a comprehensive treatment device for sludge hydrolysis, humic, catalysis and drying comprises a base 1, a heating stirring tank 2, a stirring structure and a heating structure, wherein the heating stirring tank 2 comprises a tank body 201, a feeding pipe 202, a discharging pipe 204 and a collecting plate 212, the tank body 201 is horizontally arranged on the base 1, the feeding pipe 202 is arranged on one side above the tank body 201, a feeding valve 203 is arranged on the feeding pipe 202, preferably the feeding valve 203 is a gate valve, the discharging pipe 204 is arranged on the other side below the tank body 201, a discharging valve 205 is arranged on the discharging pipe 204, preferably the feeding valve 205 is a gate valve, the collecting plate 212 is arranged on the lower part of the inner side of the tank body 201, as shown in fig. 5, the collecting plate 212 is a curved surface groove with two sides high and a middle low, and a screw groove 216 is arranged in the middle of the collecting plate 212 along the axial direction; the stirring structure comprises a stirring part and a driving part, wherein the driving part is arranged on a base 1, the stirring part is positioned in a tank body 201 and is connected with the driving part, the stirring part comprises a hollow screw shaft 4 and at least one hollow stirring shaft 3, the hollow screw shaft 4 is arranged in a screw groove 216, the hollow stirring shaft 3 is arranged on the tank body 201 in parallel relative to the hollow stirring shaft 4, rotary joints are respectively arranged at the shaft ends of the hollow stirring shaft 3 and the hollow screw shaft 4, the driving part comprises a motor 7, a speed reducer 8 and a gear transmission assembly 9, the output end of the motor 7 is connected with the input end of the speed reducer 8, the output end of the speed reducer 8 is connected with the input end of the gear transmission assembly 9, and the output end of the gear transmission assembly 9 is respectively connected with the hollow stirring shaft 3 and the hollow screw shaft 4 in a transmission way; the heating structure comprises an interlayer 207 arranged on the inner wall of the tank 201 and a cavity arranged on the lower side of the collecting plate 212, a liquid inlet pipe 208 communicated with the interlayer 207 is arranged on the lower side of the tank 201, a liquid outlet pipe 209 communicated with the interlayer 207 is arranged on the upper side of the tank 201, a plurality of liquid separation plates 213 with uniform intervals are arranged on the lower side of the collecting plate 212, sealing plates 215 are hermetically connected at the edges of the liquid separation plates 213 to form a plurality of cavities, liquid through holes 214 are formed in the liquid separation plates 213 at the middle positions, and the cavities are communicated with the interlayer 207 through the liquid through holes 214.
As shown in fig. 1, the base 1 includes a frame 101, a front support 102 and a rear support 103, the front support 102 is fixed on the front part of the upper surface of the frame 101, the rear support 103 is fixed on the rear part of the upper surface of the frame 101, and the hollow screw shaft 4 and the hollow stirring shaft 3 are respectively fixed on the front support 102 and the rear support 103 through cooling type bearing blocks 6.
As shown in fig. 6, the hollow stirring shaft 3 includes a shaft body 301 and stirring blades 303, the shaft body 301 is of a hollow structure, a plurality of groups of through holes 302 are formed in the side wall of the shaft body 301 along the axis, the through holes 302 are arranged along the radial direction of the shaft body 301, heating cavities 304 are formed in the stirring blades 303, the plurality of stirring blades 303 are arranged on the side wall of the shaft body 301, and the heating cavities 304 of each stirring blade 303 are at least communicated with one through hole 302.
The stirring blade 303 is internally provided with a liquid return pipe 305, one end of the liquid return pipe 305 extends into one side of the heating cavity 304 away from the shaft body 301, and the other end of the liquid return pipe passes through the through hole 302 and penetrates into the shaft body 301.
As shown in fig. 3, the middle of the tank 201 is a cylindrical structure, two ends are arc structures, the outer wall of the cylindrical structure is covered with a tank wall insulation layer 206, two ends of the cylindrical structure are provided with a partition 210, the partition 210 and the arc structures form a heat insulation cavity, and the heat insulation cavity is filled with a tank end insulation layer 211.
As shown in fig. 7, a sealing structure 5 is disposed between the stirring portion and the sidewall of the tank 201, the sealing structure 5 includes a sealing body 501, a packing seal 503 and a machine seal 505, a cavity 502 is disposed in the sealing body 501, a packing box is disposed on one side of the sealing body 501 near the interior of the tank 201, the packing box is filled with the packing seal 503, a packing gland 504 is mounted at the end of the sealing body 501 in a locking manner, the packing seal 503 is pressed in the packing box, the machine seal 505 is mounted on the other side of the sealing body 501, an air inlet pipe 506 communicating with the cavity 502 is connected to the sidewall of the sealing body 501, a threaded hole is further tapped into the sidewall of the sealing body 501, and a plug 507 is disposed in the threaded hole.
As shown in fig. 8 and 9, the cooling-type bearing seat 6 includes a seat body 601, a shaft sleeve 602 and a bearing 603, the shaft sleeve 602 is sleeved on the shaft, an inner ring of the bearing 603 is installed in the middle of the shaft sleeve 602, an outer ring of the bearing 603 is installed in the seat body 601, the seat body 601 is fixed on the front support frame 102 or the rear support frame 103, a front end cover 604 is installed at the front side of the seat body 601, a front sealing member 605 is installed between the central position of the front end cover 604 and the shaft sleeve 602, a front sealing gland 606 is installed on the front end cover 604 in a locking manner, the front sealing member 605 is pressed in the front end cover 604, a rear sealing member 608 is installed between the central position of the rear end cover 607 and the shaft sleeve 602, a rear sealing gland 609 is installed on the rear end cover 607 in a locking manner, the seat body 601, the shaft sleeve 602, the front end cover 604, the front sealing member 605, the rear end cover 607 and the rear sealing member 608 form a closed cavity together, and a cooling liquid inlet joint 611 and a cooling liquid outlet joint 612 are respectively connected to the two sides of the seat body 601.
As shown in fig. 10, the shaft sleeve 602 includes a bearing base 60201, a ring groove 60202 and a cooling through groove 60205, ring grooves 60202 are respectively provided at two sides of the bearing base 60201, the ring groove 60202 extends radially to the bearing base 60201, a plurality of cooling through grooves 60205 are axially provided on an end surface of the bearing base 60201, the cooling through grooves 60205 are communicated with the ring groove 60202, two ends of the cooling through grooves 60205 are plugged by a sealing plug, a bearing baffle ring 60203 and a baffle ring groove 60204 are further provided on the bearing base 60201 between the two ring grooves 60202, one side of an inner ring of the bearing 603 is pressed on a side wall of the bearing baffle ring 60203, and the other side is axially positioned by a bearing baffle ring 610 installed in the baffle ring groove 60204.
As shown in fig. 11, there are two hollow stirring shafts 3, and the two hollow stirring shafts 3 are located on the same horizontal plane and are symmetrical about the hollow screw shaft 4.
As shown in fig. 11, the gear transmission assembly 9 includes a first gear 901, a second gear 902, a third gear 903, a fourth gear 904, and a fifth gear 905, the first gear 901 is mounted on the output shaft of the reduction gear 8, the second gear 902 is mounted on the hollow screw shaft 4, the first gear 901 is meshed with the second gear 902, the third gear 903 and the fourth gear 904 are coaxially mounted on one of the hollow stirring shafts 3, the third gear 903 is meshed with the second gear 902, the fifth gear 905 is mounted on the other hollow stirring shaft 3, and the fifth gear 905 is meshed with the fourth gear 904.
The working process of the invention is as follows: the tank 201 is preheated, high-temperature liquid is respectively introduced into the hollow stirring shaft 3 and the hollow screw shaft 4 through the rotary joints, the hollow stirring shaft 3 and the hollow screw shaft 4 are preheated respectively, and meanwhile, the high-temperature liquid is introduced into the interlayer 207 and the heating cavity through the liquid inlet pipe 208, so that the inner surface wall of the tank 201 is preheated. Closing discharge valve 205, opening feed valve 203, letting in to treat mud to jar body 201 inside, after reaching single throughput, closing feed valve 203, motor 7 drives reduction gear 8 and rotates, reduction gear 8 drives gear drive assembly 9 to drive hollow (mixing) shaft 3 and hollow screw shaft 4 rotation respectively, blow to cavity 502 inside through intake pipe 506, intake pressure of intake pipe 506 is slightly higher than jar body 201 inside pressure, make jar body 201 inside atmospheric pressure unable to extrude mud from packing seal 503, realize the blowback effect, hollow (mixing) shaft 3 and hollow screw shaft 4 also heat mud when the stirring, plus the intermediate layer 207 heating of jar body 201 inner wall, the heating is rapid, the stirring is even, realize high-efficient high temperature hydrolysis treatment. After the hydrolysis treatment effect is achieved, the discharge valve 205 is opened, and the fertilizer obtained after the treatment is stored. Checking the effectiveness of the packing seal 503, after the plug 507 is disassembled, if sediment is blown out from the threaded hole, the packing seal 503 is invalid, and the packing seal 503 needs to be replaced in time.

Claims (7)

1. A sludge hydrolysis, humic, catalysis and drying integrated treatment device is characterized in that: comprises a base (1), a heating stirring tank (2), a stirring structure and a heating structure;
the heating stirring tank (2) comprises a tank body (201), a feeding pipe (202), a discharging pipe (204) and a collecting plate (212), wherein the tank body (201) is horizontally arranged on a base (1), the feeding pipe (202) is arranged on one side above the tank body (201), the discharging pipe (204) is arranged on the other side below the tank body (201), the collecting plate (212) is arranged on the lower portion of the inner side of the tank body (201), the collecting plate (212) is a curved surface groove with two sides high and low in middle, a screw groove (216) is arranged in the middle of the collecting plate (212) along the axial direction, the middle of the tank body (201) is of a cylindrical structure, two ends of the cylindrical structure are of an arc surface structure, a tank wall insulation layer (206) is coated on the outer wall of the cylindrical structure, two ends of the cylindrical structure are provided with a partition plate (210), the partition plate (210) and the arc surface structure form a heat insulation cavity, and a tank end insulation layer (211) is filled in the heat insulation cavity;
the stirring structure comprises a stirring part and a driving part, wherein the driving part is arranged on a base (1), the stirring part is positioned in a tank body (201) and is connected with the driving part, the stirring part comprises a hollow screw shaft (4) and at least one hollow stirring shaft (3), the hollow screw shaft (4) is arranged in a screw groove (216), the hollow stirring shaft (3) is arranged on the tank body (201) in parallel relative to the hollow screw shaft (4), rotary joints are respectively arranged at the shaft ends of the hollow stirring shaft (3) and the hollow screw shaft (4), the driving part comprises a motor (7), a speed reducer (8) and a gear transmission assembly (9), the output end of the motor (7) is connected with the input end of the speed reducer (8), and the output end of the speed reducer (8) is connected with the input end of the gear transmission assembly (9), and the output end of the gear transmission assembly (9) is respectively connected with the hollow stirring shaft (3) and the hollow screw shaft (4);
after the sludge enters the tank body (201) from the feed pipe, the sludge moves to the discharge pipe (204) along the material collecting plate (212) under the action of the spiral pushing of the hollow spiral shaft (4), and then moves to the feed pipe (202) from one side of the discharge pipe (204) under the action of the reverse stirring of the hollow stirring shaft (3), so that the sludge is repeatedly stirred and heated fully;
the heating structure comprises an interlayer (207) arranged on the inner wall of the tank body (201) and a cavity arranged on the lower side of the collecting plate (212), a liquid inlet pipe (208) communicated with the interlayer (207) is arranged on the lower side of the tank body (201), a liquid outlet pipe (209) communicated with the interlayer (207) is arranged on the upper side of the tank body (201), a plurality of liquid separation plates (213) with uniform intervals are arranged on the lower side of the collecting plate (212), sealing plates (215) are hermetically connected at the edges of the liquid separation plates (213) to form a plurality of cavities, liquid passing holes (214) are formed in the liquid separation plates (213) positioned in the middle position, and the cavities are communicated with the interlayer (207) through the liquid passing holes (214);
the hollow stirring shaft (3) comprises a shaft body (301) and stirring blades (303), the shaft body (301) is of a hollow structure, a plurality of groups of through holes (302) are formed in the side wall of the shaft body (301) along the axis, the through holes (302) are arranged along the radial direction of the shaft body (301), heating cavities (304) are formed in the stirring blades (303), a plurality of stirring blades (303) are arranged on the side wall of the shaft body (301), and the heating cavities (304) of each stirring blade (303) are at least communicated with one through hole (302);
a sealing structure (5) is arranged between the stirring part and the side wall of the tank body (201), the sealing structure (5) comprises a sealing body (501), a filler seal (503) and a mechanical seal (505), a cavity (502) is axially arranged in the sealing body (501), a filler box is arranged on one side, close to the inside of the tank body (201), of the sealing body (501), the filler box is filled with the filler seal (503), a filler gland (504) is tightly locked at the end part of the sealing body (501), the filler seal (503) is tightly pressed in the filler box, the mechanical seal (505) is arranged on the other side of the sealing body (501), an air inlet pipe (506) communicated with the cavity (502) is connected to the side wall of the sealing body (501), a threaded hole is further formed in the side wall of the cavity in the sealing body (501), and a plug (507) is arranged in the threaded hole.
2. The sludge hydrolysis, humic, catalytic and drying integrated treatment equipment according to claim 1, wherein the equipment is characterized in that: the base (1) comprises a frame (101), a front supporting frame (102) and a rear supporting frame (103), wherein the front supporting frame (102) is fixed on the front portion of the upper surface of the frame (101), the rear supporting frame (103) is fixed on the rear portion of the upper surface of the frame (101), and the hollow screw shaft (4) and the hollow stirring shaft (3) are respectively fixed on the front supporting frame (102) and the rear supporting frame (103) through cooling type bearing seats (6).
3. The sludge hydrolysis, humic, catalytic and drying integrated treatment equipment according to claim 1, wherein the equipment is characterized in that: a liquid return pipe (305) is arranged in the stirring blade (303), one end of the liquid return pipe (305) stretches into one side of the heating cavity (304) away from the shaft body (301), and the other end of the liquid return pipe penetrates through the through hole (302) and stretches into the shaft body (301).
4. The sludge hydrolysis, humic, catalytic and drying integrated treatment equipment according to claim 2, wherein the equipment is characterized in that: the cooling type bearing seat (6) comprises a seat body (601), a shaft sleeve (602) and a bearing (603), wherein the shaft sleeve (602) is sleeved on the shaft, an inner ring of the bearing (603) is installed in the middle of the shaft sleeve (602), an outer ring of the bearing (603) is installed in the seat body (601), the seat body (601) is fixed on a front support frame (102) or a rear support frame (103), a front end cover (604) is installed on the front side of the seat body (601), a front sealing piece (605) is installed between the central position of the front end cover (604) and the shaft sleeve (602), a front sealing gland (606) is installed on the front end cover (604) in a locking manner, the front sealing piece (605) is tightly pressed in the front end cover (604), a rear end cover (607) is installed on the rear side of the seat body (601), a rear sealing gland (609) is installed between the central position of the rear end cover (607) and the shaft sleeve (602), the rear sealing piece (608) is tightly pressed in the rear end cover (607), the seat body (601), the front end cover (602), the front sealing piece (605) and the rear sealing piece (607) are tightly pressed together to form a closed cavity, and a cooling liquid inlet joint (611) and a cooling liquid outlet joint (612) which are communicated with the closed cavity are respectively connected to two sides of the seat body (601).
5. The sludge hydrolysis, humic, catalytic and drying integrated treatment equipment according to claim 4, wherein the equipment comprises the following components: the shaft sleeve (602) comprises a bearing base (60201), annular grooves (60202) and cooling through grooves (60205), wherein the annular grooves (60202) are respectively arranged on two sides of the bearing base (60201), the annular grooves (60202) extend towards the radial direction of the bearing base (60201), a plurality of cooling through grooves (60205) are axially arranged on the end face of the bearing base (60201), the cooling through grooves (60205) are communicated with the annular grooves (60202), two ends of the cooling through grooves (60205) are plugged by sealing plugs, a bearing baffle ring (60203) and a baffle ring groove (60204) are further arranged on the bearing base (60201) between the two annular grooves (60202), one side of an inner ring of a bearing (603) is pressed on the side wall of the bearing baffle ring (60203), and the other side of the inner ring of the bearing is axially positioned by a bearing baffle ring (610) arranged in the baffle ring groove (60204).
6. The sludge hydrolysis, humic, catalytic and drying integrated treatment equipment according to claim 1, wherein the equipment is characterized in that: the two hollow stirring shafts (3) are positioned on the same horizontal plane, and the two hollow stirring shafts (3) are symmetrical relative to the hollow screw shaft (4).
7. The sludge hydrolysis, humic, catalytic and drying integrated treatment equipment according to claim 6, wherein the equipment is characterized in that: the gear transmission assembly (9) comprises a first gear (901), a second gear (902), a third gear (903), a fourth gear (904) and a fifth gear (905), wherein the first gear (901) is arranged on an output shaft of the speed reducer (8), the second gear (902) is arranged on the hollow spiral shaft (4), the first gear (901) is meshed with the second gear (902), the third gear (903) and the fourth gear (904) are coaxially arranged on one hollow stirring shaft (3), the third gear (903) is meshed with the second gear (902), the fifth gear (905) is arranged on the other hollow stirring shaft (3), and the fifth gear (905) is meshed with the fourth gear (904).
CN201710203791.1A 2017-03-30 2017-03-30 Comprehensive treatment equipment for sludge hydrolysis, humic, catalysis and drying Active CN106830606B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710203791.1A CN106830606B (en) 2017-03-30 2017-03-30 Comprehensive treatment equipment for sludge hydrolysis, humic, catalysis and drying

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710203791.1A CN106830606B (en) 2017-03-30 2017-03-30 Comprehensive treatment equipment for sludge hydrolysis, humic, catalysis and drying

Publications (2)

Publication Number Publication Date
CN106830606A CN106830606A (en) 2017-06-13
CN106830606B true CN106830606B (en) 2023-12-05

Family

ID=59141910

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710203791.1A Active CN106830606B (en) 2017-03-30 2017-03-30 Comprehensive treatment equipment for sludge hydrolysis, humic, catalysis and drying

Country Status (1)

Country Link
CN (1) CN106830606B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106746443A (en) * 2017-03-30 2017-05-31 四川高博环保工程有限公司 A kind of sludge hydrolytic treatment tank body
CN106746442A (en) * 2017-03-30 2017-05-31 四川高博环保工程有限公司 A kind of hollow agitating shaft for sludge hydrolytic processing equipment oil bath heating
CN106698883A (en) * 2017-03-30 2017-05-24 四川高博环保工程有限公司 Flow guide structure in sludge hydrolysis tank
CN107224886A (en) * 2017-07-06 2017-10-03 成都联创精密机械有限公司 Prevent the sludge hydrolytic tank body that sludge is accumulated
CN107971328A (en) * 2017-12-28 2018-05-01 宁波宝力农环境技术开发有限公司 Low Temperature Thermal hydrolytic decomposition pot
CN109173972A (en) * 2018-10-15 2019-01-11 河南省科学院地理研究所 A kind of efficient reclaiming organic waste utilizes reactor tank
CN113026843B (en) * 2021-04-16 2022-08-16 李沛善 Hydraulic engineering silt high-efficiency processing system
CN115106004A (en) * 2022-05-12 2022-09-27 安徽国钦智能科技有限公司 Material lifting mixer for pharmaceutical equipment and use method thereof

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2870480Y (en) * 2006-02-22 2007-02-21 哈尔滨瑞恩农牧工程有限公司 Mixed grain agitator
CN201810768U (en) * 2009-12-28 2011-04-27 淄博三田机械密封有限公司 Radial double mechanical seal with bearing
CN102303943A (en) * 2011-08-17 2012-01-04 无锡市彩云机械设备有限公司 Sludge drier auger
CN103161830A (en) * 2013-04-07 2013-06-19 四川皇龙智能破碎技术股份有限公司 High-temperature-resistance bearing base
CN103322198A (en) * 2013-06-30 2013-09-25 扬州市江都区鹏飞化工设备厂 Hollow blade shaft-end sealing mechanism
CN103968657A (en) * 2014-05-28 2014-08-06 常州市金陵干燥设备有限公司 High vacuum multi-axis paddle dryer
JP2015004495A (en) * 2013-06-21 2015-01-08 三菱マテリアルテクノ株式会社 Disk type agitation processor
CN105417912A (en) * 2015-12-10 2016-03-23 清华大学深圳研究生院 Dewatered-sludge anaerobic dry fermentation device
CN206736055U (en) * 2017-03-30 2017-12-12 四川高博环保工程有限公司 A kind of sludge hydrolytic, rotten plant, catalysis, dry comprehensive treatment equipment

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2870480Y (en) * 2006-02-22 2007-02-21 哈尔滨瑞恩农牧工程有限公司 Mixed grain agitator
CN201810768U (en) * 2009-12-28 2011-04-27 淄博三田机械密封有限公司 Radial double mechanical seal with bearing
CN102303943A (en) * 2011-08-17 2012-01-04 无锡市彩云机械设备有限公司 Sludge drier auger
CN103161830A (en) * 2013-04-07 2013-06-19 四川皇龙智能破碎技术股份有限公司 High-temperature-resistance bearing base
JP2015004495A (en) * 2013-06-21 2015-01-08 三菱マテリアルテクノ株式会社 Disk type agitation processor
CN103322198A (en) * 2013-06-30 2013-09-25 扬州市江都区鹏飞化工设备厂 Hollow blade shaft-end sealing mechanism
CN103968657A (en) * 2014-05-28 2014-08-06 常州市金陵干燥设备有限公司 High vacuum multi-axis paddle dryer
CN105417912A (en) * 2015-12-10 2016-03-23 清华大学深圳研究生院 Dewatered-sludge anaerobic dry fermentation device
CN206736055U (en) * 2017-03-30 2017-12-12 四川高博环保工程有限公司 A kind of sludge hydrolytic, rotten plant, catalysis, dry comprehensive treatment equipment

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
程岚.《宁夏特色农业机械技术》.银川：阳光出版社,2010,第92页. *
谢生伟.《农业机械结构与维修》.西南交通大学出版社,2013,第217-218页. *

Also Published As

Publication number Publication date
CN106830606A (en) 2017-06-13

Similar Documents

Publication Publication Date Title
CN106830606B (en) Comprehensive treatment equipment for sludge hydrolysis, humic, catalysis and drying
CN204892542U (en) Poultry innocent treatment device
CN104312911B (en) Agitating device for dry-type anaerobic fermentation
CN103506377B (en) Multi-heat source and shaftless intervallic heating type thermal desorption device for organic pollutant contaminated soil repair
CN203196987U (en) Anaerobic-aerobiotic compatible biological slurry reactor
WO2017107028A1 (en) Equipment and method for processing petroleum rock cuttings mud
CN108795464A (en) A kind of desorption processing method and its device using flue gas indirectly heat
CN102363550B (en) Disc type sludge dryer
CN106334510B (en) A kind of leak-proof high viscosity fluid hybrid reactor
CN108485686B (en) Double-row mixed flow internal and external dynamic heating solid organic matter pyrolysis combined device
CN206337134U (en) A kind of greasy filth pyrolysis installation
CN210367145U (en) High-efficiency IC reactor
CN210261526U (en) Energy-saving oil sludge pyrolysis equipment
CN206736055U (en) A kind of sludge hydrolytic, rotten plant, catalysis, dry comprehensive treatment equipment
CN111807644A (en) Antibiotic waste water degradation device of combination hydrodynamic cavitation and biological method
CN206751494U (en) A kind of sewage disposal cycle of ozone device
CN112605112B (en) Organic matter pollution purifying treatment device
CN105384473A (en) Apparatus for carrying out harmless treatment on crushed blocks of animal dead bodies caused by diseases
CN217662744U (en) Proportioning machine for modified asphalt
CN103657140A (en) Efficient continuous extraction device
CN210711201U (en) Sled dress formula oil-containing sludge continuous processing system
CN114213168A (en) Organic waste low-emission micro-oxygen fermentation equipment
CN209759279U (en) Sludge vacuum dynamic dryer
CN203663491U (en) Efficient and continuous extraction device
CN207941240U (en) A kind of extraction and separation automatic control device

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
TA01 Transfer of patent application right

Effective date of registration: 20231018

Address after: No. 1606, 16th Floor, Building 1, No. 365 Jiaozi Avenue, High tech Zone, Chengdu, Sichuan Province, 610000

Applicant after: Sichuan Gaobo Environmental Investment Technology Co.,Ltd.

Address before: 3rd Floor, Building 2, No. 9, Section 4, Renmin South Road, Wuhou District, Chengdu City, Sichuan Province, 610041

Applicant before: SICHUAN GAOBO ENVIRONMENTAL PROTECTION ENGINEERING Co.,Ltd.

TA01 Transfer of patent application right
GR01 Patent grant
GR01 Patent grant