CN112759213A - Vertical internal circulation sequencing batch pyrolysis equipment and method for sludge treatment - Google Patents
Vertical internal circulation sequencing batch pyrolysis equipment and method for sludge treatment Download PDFInfo
- Publication number
- CN112759213A CN112759213A CN202110232884.3A CN202110232884A CN112759213A CN 112759213 A CN112759213 A CN 112759213A CN 202110232884 A CN202110232884 A CN 202110232884A CN 112759213 A CN112759213 A CN 112759213A
- Authority
- CN
- China
- Prior art keywords
- crawler
- sludge
- transmission
- swinging
- carbonization
- 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.)
- Pending
Links
- 239000010802 sludge Substances 0.000 title claims abstract description 298
- 238000000034 method Methods 0.000 title claims abstract description 55
- 238000000197 pyrolysis Methods 0.000 title claims abstract description 28
- 238000012163 sequencing technique Methods 0.000 title claims abstract description 20
- 238000003763 carbonization Methods 0.000 claims abstract description 218
- 239000002028 Biomass Substances 0.000 claims abstract description 129
- 238000010438 heat treatment Methods 0.000 claims abstract description 38
- 230000010355 oscillation Effects 0.000 claims abstract description 22
- 238000005096 rolling process Methods 0.000 claims abstract description 7
- 235000013305 food Nutrition 0.000 claims abstract description 5
- 230000009466 transformation Effects 0.000 claims abstract description 5
- 230000005540 biological transmission Effects 0.000 claims description 285
- 239000000203 mixture Substances 0.000 claims description 112
- 238000007599 discharging Methods 0.000 claims description 69
- 239000002131 composite material Substances 0.000 claims description 41
- 230000008569 process Effects 0.000 claims description 37
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 9
- 238000002485 combustion reaction Methods 0.000 claims description 9
- 229910001220 stainless steel Inorganic materials 0.000 claims description 9
- 239000010935 stainless steel Substances 0.000 claims description 9
- 241000609240 Ambelania acida Species 0.000 claims description 3
- 244000269722 Thea sinensis Species 0.000 claims description 3
- 239000010905 bagasse Substances 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
- 238000005485 electric heating Methods 0.000 claims description 3
- 229910021389 graphene Inorganic materials 0.000 claims description 3
- 239000010865 sewage Substances 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 240000003826 Eichhornia crassipes Species 0.000 claims 1
- 239000000149 chemical water pollutant Substances 0.000 claims 1
- 238000009713 electroplating Methods 0.000 claims 1
- 238000004927 wastewater treatment sludge Methods 0.000 claims 1
- 239000002918 waste heat Substances 0.000 abstract description 24
- 238000010000 carbonizing Methods 0.000 abstract description 10
- 230000007797 corrosion Effects 0.000 abstract description 4
- 238000005260 corrosion Methods 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000004064 recycling Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 35
- 239000002912 waste gas Substances 0.000 description 27
- 230000007306 turnover Effects 0.000 description 12
- 239000002699 waste material Substances 0.000 description 11
- 238000013461 design Methods 0.000 description 9
- 239000000463 material Substances 0.000 description 9
- 238000001035 drying Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 229910052799 carbon Inorganic materials 0.000 description 6
- 230000001276 controlling effect Effects 0.000 description 5
- 230000007774 longterm Effects 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 3
- 241000169203 Eichhornia Species 0.000 description 2
- 244000052616 bacterial pathogen Species 0.000 description 2
- 235000013601 eggs Nutrition 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000002910 solid waste Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 241000238631 Hexapoda Species 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009264 composting Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000010921 garden waste Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000005067 remediation Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Images
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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/40—Valorisation of by-products of wastewater, sewage or sludge processing
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a vertical internal circulation sequencing batch pyrolysis device and a method for sludge treatment. More than one swinging crawler belt is arranged in the device, a vertical arrangement mode is adopted between each swinging crawler belt, a heating device is arranged on the outer wall surface of the equipment, and heating ports of the heating device are positioned on two sides of each swinging crawler belt; the swinging crawler belt has the functions of swinging and rolling the sludge on the plate surface; the heating device enables the temperature in the equipment to have gradient transformation, and hot air flow in the equipment performs internal circulation flow. The invention simultaneously has the functions of common carbonization of sludge and biomass, uniform carbonization of sludge oscillation, carbonization temperature control, waste heat recycling and the like. The burner is arranged outside the furnace, so that the maintenance is convenient; the inner wall of the furnace body is specially treated and has corrosion resistance, so that the invention can be used for carbonizing and incinerating corrosive sludge such as industrial sludge, food sludge and the like.
Description
Technical Field
The invention relates to the technical field of sludge and biomass treatment, in particular to a vertical internal circulation sequencing batch pyrolysis device and a method for sludge treatment.
Background
A large amount of waste sludge is generated in the treatment process of sewage and wastewater, the waste sludge contains a large amount of organic matters, heavy metals, phosphorus, germs, insect eggs and other substances, and if the waste sludge is not properly treated, the waste sludge further pollutes and destroys the environment.
The traditional sludge treatment and disposal methods comprise ocean dumping, yard landfill, sludge incineration and the like. However, the treatment and disposal of the sludge by using the methods have the problems of secondary pollution: the harmful substances contained in the sludge are released again by ocean dumping and yard landfill; the landfill area of the storage yard is large; sludge incineration generates a large amount of toxic and harmful gases, and the cost of sludge is greatly increased due to the requirement of a large amount of heat sources.
The preparation of the biochar by sludge carbonization is considered to be an excellent sludge treatment method, the carbonization of the sludge can effectively crack organic matters, solidify heavy metals and nutrient salts, kill germs, worm eggs and the like, and the biochar formed after carbonization does not cause secondary pollution in the using process. The invention patent CN1123181129A discloses a method for preparing biochar from sludge of a municipal sewage plant, wherein the biochar generated by the sludge pyrolysis in an anaerobic state can be used for composting, soil remediation and the like. And proper addition of biomass can reduce the viscosity of the sludge, improve the content of organic matters of biological carbon in the sludge and effectively reduce odor generated in the sludge carbonization process. The invention patents CN1112311532A, CN128119810510A, CN128111282A, CN1231138002A and the like all describe methods for preparing biological carbon by carbonizing biomass, the invention patent CN1111009885A discloses a device for drying and dry distilling sludge and garden waste, but at present, a device and a method for preparing composite biological carbon by mixing and burning biomass with sludge are still lacked, and the feasibility of the actual operation process of mixing and burning biomass with sludge is not provided; the utility model CN212911219U, CN2122109221U and invention patent CN111904339A all disclose drum-type (rotary kiln) sludge carbonizing devices, but the drum-type carbonizing furnace has the problems of long-term operation stability and odor and waste gas leakage.
Disclosure of Invention
In view of the defects of the prior art, the invention aims to provide a vertical internal circulation sequencing batch pyrolysis device which can carbonize waste sludge and waste biomass, can stably operate at high temperature for a long time, and can utilize or treat odor tail gas. The method realizes the synergistic carbonization of the waste sludge and the waste biomass, the carbonization temperature is 300-600 ℃, the carbonization time is 1-2 h, the biochar generated after treatment can be recycled while the two wastes are treated simultaneously, and the performance of the biochar can be effectively improved by doping the biomass into the sludge for carbonization. According to the invention, the waste biomass is doped into the sludge, so that the viscosity of the sludge can be effectively reduced, and the subsequent carbonization process of the sludge is facilitated. According to the invention, waste biomass is doped into sludge, so that the yield of the biological carbon can be effectively improved, and the calorific value of the biological carbon can be increased. The invention abandons the arrangement of a rotary kiln, adopts a vertical furnace body and a swinging crawler belt to carry out the carbonization of the sludge, and can continuously operate and produce continuously without intermittence for a long time. The vertical structure of the invention plays a role in internal circulation of heat, so that the invention has high thermal efficiency, thereby reducing investment and operation cost. The invention is a vertical furnace body, realizes the processes of continuous feeding, continuous carbonization and continuous discharging by the continuous transmission of the swinging crawler belt, ensures the continuity of long-term high-temperature operation of equipment and the full utilization of the high temperature of a furnace chamber, uniformly heats sludge by the swinging oscillation of the swinging crawler belt, reduces the reaction time, and ensures that the carbonization is more thorough because the multi-layer crawler belt reacts step by step. The invention transfers the temperature of the carbonization furnace through the temperature sensor, controls the starting and stopping number and the combustion power of a plurality of burners through the central control system, plays a role in controlling the temperature in the furnace cavity of the vertical sludge carbonization equipment, can adjust and monitor the temperature up and down as required, and fully utilizes the heat. The burner is arranged outside the furnace, and is convenient to maintain. The inner wall of the furnace body is specially treated and has corrosion resistance, so that the invention can be used for carbonizing corrosive sludge such as industrial sludge, food sludge and the like. The invention adopts a central control system to automatically control feeding and discharging, equipment starting operation, temperature and the like.
In order to achieve the above purpose, the invention provides the following technical scheme:
the vertical internal circulation sequencing batch pyrolysis equipment is characterized in that more than one swinging crawler belt is arranged in a furnace body of the vertical sludge carbonization equipment, the swinging crawler belts are arranged up and down, a heating device is arranged on the outer wall surface of the equipment, and heating ports of the heating device are positioned on two sides of the swinging crawler belts; the swinging crawler belt has the functions of swinging and rolling the sludge on the plate surface; the heating device enables the temperature in the equipment to have gradient transformation, and hot air flow in the equipment performs internal circulation flow.
Further, the heating device is a burner or a stainless steel electric heating tube, a ceramic electric heater, a graphene heater, or the like.
Further, one end of the swinging crawler is provided with a crawler transmission rod; one end of the swinging crawler is connected with the transmission driver through a crawler transmission rod; one side of the swinging crawler is provided with a crawler swinging rod; one side of the swinging crawler is connected with the swinging driver through a crawler swinging rod.
Further, a temperature sensor is arranged in the equipment box body.
Further, the equipment also comprises a track transmission rod, a transmission driver, a track swinging rod, a swinging driver, a temperature sensor, a central control system connecting wire and a central control system; the heating device is a burner.
Further, the swinging crawler belt is horizontally arranged in the vertical sludge carbonization equipment furnace body; the track transmission rod is arranged at one end of the swinging track; the other end of the track transmission rod is connected with a transmission driver; the swinging crawler is driven by a transmission driver and a crawler transmission rod to transmit; the crawler oscillating rod is arranged on one side of the oscillating crawler; the other end of the crawler swinging rod is connected with a transmission driver; the swinging crawler is driven to swing by a swinging driver and a crawler swinging rod; the burners are arranged on two sides of the furnace body of the vertical sludge carbonization equipment; the temperature sensors are arranged on two sides of the furnace body of the vertical sludge carbonization equipment.
Furthermore, the equipment comprises a central control system, wherein the central control system is respectively electrically connected with the swinging crawler, the conveying driver, the swinging driver, the temperature sensor and the heating device and is used for acquiring temperature data and controlling the opening and closing and the power of the conveying driver, the swinging crawler and the heating device; the central control system controls the opening and closing of the conveying driver and the running power, adjusts the conveying speed of the swinging crawler belt and adjusts the carbonization time of the sludge biomass mixture; the central control system controls the starting and closing and running power of the swinging driver and adjusts the swinging frequency of the swinging crawler; the central control system controls the opening and closing of the heating device and the combustion power, and adjusts the carbonization temperature and the temperature gradient in the furnace body of the vertical sludge carbonization equipment.
Further, the vertical sludge carbonization equipment furnace body comprises a feeding hole, a carbonization furnace cavity, a swinging crawler mounting hole, a crawler swinging rod mounting hole, a burner mounting hole, a temperature sensor mounting hole, a composite biochar collecting cavity, furnace body supporting legs, a discharging hole and a residual heat gas discharging hole.
Further, the feed inlet is arranged on the edge of the top of the furnace body of the vertical sludge carbonization equipment; the discharge port is arranged at the bottom of the furnace body of the vertical sludge carbonization equipment; the residual heat gas outlet is arranged at the edge of the top of the furnace body of the vertical sludge carbonization equipment, the residual heat gas outlet in use is hermetically connected with the residual heat gas discharge pipe, and the unused residual heat gas outlet is hermetically closed, so that the heat gas does not overflow.
Further, the swinging crawler belt mounting openings are arranged on two sides of the carbonization furnace chamber.
Furthermore, the installation openings of the crawler oscillating rods are arranged at one side of the cavity of the carbonization furnace close to the middle row;
furthermore, the burner mounting ports are arranged at the middle vertical part of the cavity of the carbonization furnace and are uniformly distributed; the burner mounting ports are arranged on two sides of the cavity of the carbonization furnace.
Furthermore, the temperature sensor mounting openings are formed in the middle vertical part of the cavity of the carbonization furnace and are uniformly distributed; the temperature sensor mounting ports are arranged on two sides of the cavity of the carbonization furnace.
Further, the composite biochar collecting cavity is arranged at the bottom of the carbonization furnace cavity and is an inverted step-shaped cavity, and the angle between the tetrahedral trapezoid and the horizontal plane is 30-45 degrees.
Furthermore, the supporting legs of the vertical sludge carbonization device are arranged at four corners of the bottom of the cavity of the carbonization furnace.
Further, the feeding port comprises a feeding bin, a feeding upper turning plate and a feeding lower gate plate; the top of the feeding bin is provided with a feeding upper turning plate, and the bottom of the feeding bin is provided with a feeding lower flashboard.
Further, the oscillating track comprises a track frame, a track transmission shaft and a track oscillating shaft; the crawler is mounted on the crawler frame; the crawler transmission shaft is arranged at one end of the crawler frame; the crawler oscillating shaft is arranged on one side of the middle of the crawler frame; the caterpillar tracks can be driven by a caterpillar track transmission shaft to convey, so that the sludge biomass mixture after pyrolysis enters the next layer of swinging caterpillar track; the crawler frame and the crawler can be driven by the crawler oscillating shaft to oscillate so as to oscillate and roll the sludge biomass mixture.
Further, the track transmission rod comprises a transmission connecting shaft and a transmission disc; the transmission connecting shaft is arranged on the crawler belt transmission rod, the transmission disc is eccentrically arranged on the transmission connecting shaft, and the center of the other side of the transmission disc is connected with the crawler belt transmission shaft; the crawler transmission rod is controlled by the transmission driver to transmit, drives the transmission connecting shaft and the transmission disc to eccentrically rotate, and further drives the crawler transmission shaft to rotate, so that the swinging crawler transmits the sludge biomass mixture.
Further, the transmission driver comprises a transmission main machine, a transmission belt, a transmission wheel and a transmission button; the transmission belt is arranged between the transmission main machine and the transmission wheel, and the transmission main machine can drive the transmission wheel to rotate through the transmission belt; the transmission button is arranged on the upper edge of the transmission wheel, and the crawler transmission rod is arranged on the transmission button; the transmission wheel drives the transmission button and the crawler transmission rod to move.
Furthermore, the crawler oscillating rod comprises an eccentric transmission disc and an eccentric transmission connector; the eccentric transmission disc is arranged on the swinging rod, the eccentric transmission connector is arranged on the eccentric transmission disc, and the other end of the eccentric transmission connector is connected with the crawler belt swinging shaft; the crawler oscillating rod is driven by an oscillating driver to rotate; the crawler oscillating rod drives the eccentric transmission disc to rotate by clockwise and anticlockwise back-and-forth rotating 270 degrees, so that the eccentric transmission connector and the crawler oscillating shaft are driven to move back and forth, and the oscillating crawler is driven to oscillate.
Furthermore, the eccentric transmission connector comprises a fixed connector, a connecting bearing and a central connecting shaft; the fixed connector and the connecting bearing are fixedly connected through a central connecting shaft; the outer ring of the connecting bearing can rotate.
Further, the swing driver comprises a transmission main shaft, a transmission belt and a transmission auxiliary shaft; the transmission belt is arranged between the transmission main shaft and the transmission auxiliary shaft, and the transmission main shaft can drive the transmission auxiliary shaft to rotate through the transmission belt; the crawler belt swinging rod is arranged on the transmission auxiliary shaft and is driven to rotate by the transmission auxiliary shaft.
Further, the discharge port comprises a discharge bin, a discharge upper flashboard and a discharge lower turning plate; the top of the discharging bin is provided with a discharging upper flashboard; and a discharging lower turning plate is arranged at the bottom of the discharging bin.
The feed inlet is a square with the side length of 20 cm-80 cm; the sludge biomass mixture enters the carbonization furnace from the feeding hole; the size of the feed inlet can be designed according to the feeding amount of the sludge biomass mixture to be carbonized.
The carbonization furnace cavity is a rectangular cavity and is a main space for performing carbonization on the sludge biomass mixture; the length of the cavity is 1.0-3.5 m, the width of the cavity is 1.0-3.5 m, the height of the cavity is 1.0-3.5 m, and the volume of the cavity is 1.000 m3~42.1095 m3(ii) a The treatment capacity of the sludge biomass mixture is 1.0 t/h-5.5 t/h.
The number of the swing crawler belt mounting openings is 4-16, the swing crawler belt mounting openings are arranged on two sides of a carbonization furnace cavity and are evenly distributed; the actual number of the holes of the swinging crawler belt mounting port is determined according to the actual design size of the cavity of the carbonization furnace, and the reserved swinging crawler belt mounting port can be opened or closed as required.
The mounting openings of the crawler belt oscillating rods are square with the side length of 50-150 cm, the number of the mounting openings of the crawler belt oscillating rods is 4-16, and the mounting openings are positioned in a row at the edge of one side of the cavity of the carbonization furnace; the actual number of the holes of the mounting port of the crawler oscillating rod is determined according to the actual design size of the cavity of the carbonization furnace, and the reserved mounting port of the crawler oscillating rod can be opened or closed as required.
The burner mounting ports are circular with the diameter of 50-150 cm, the number of the burner mounting ports is 4-16, and the burner mounting ports are positioned at the middle vertical part of the cavity of the carbonization furnace and are uniformly distributed; the burner mounting ports are arranged on two sides of the cavity of the carbonization furnace; the number of the actual holes of the burner mounting port is determined according to the actual design size of the carbide furnace cavity, and the reserved burner mounting port can be opened or closed as required.
The temperature sensor mounting openings are round with the diameter of 2-5 cm, the number of the temperature sensor mounting openings is 4-16, the temperature sensor mounting openings are positioned at the middle vertical part of the cavity of the carbonization furnace and are uniformly distributed; the temperature sensor mounting ports are arranged on two sides of the cavity of the carbonization furnace; the actual number of the holes of the temperature sensor mounting port is determined according to the actual design size of the carbonization furnace cavity, and the reserved temperature sensor mounting port can be opened or closed as required;
the composite biochar collecting cavity is arranged at the bottom of the carbonization furnace cavity and is an inverted step-shaped cavity body, and the angle between the tetrahedral trapezoid and the horizontal plane is 30-45 degrees; the composite biochar collecting cavity is used for collecting composite biochar particles falling after carbonization in the cavity of the carbonization furnace;
the supporting legs of the vertical sludge carbonization equipment are arranged at four corners of the bottom of the cavity of the carbonization furnace, the number of the supporting legs is 4 or 8, and the height of the supporting legs is 0.6-1.0 m;
the discharge port is a square with the side length of 15-40 cm; the discharge hole is used for discharging the composite biochar particles collected in the composite biochar collecting cavity;
the waste heat gas outlet is circular with the diameter of 10 cm-30 cm; the number of the residual heat gas outlets is 2-4, and the reserved residual heat gas outlets can be opened or closed as required; the residual heat gas outlet is used for guiding residual heat generated in the carbonization process in the furnace body of the vertical sludge carbonization equipment and odor and waste gas into a waste gas residual heat treatment system or a drying system for residual heat utilization;
the whole material of the furnace body of the vertical sludge carbonization equipment is stainless steel 316.
Further, the feeding port comprises a feeding bin, a feeding upper turning plate and a feeding lower gate plate; the feeding bin is in a cuboid shape, the upper surface and the lower surface of the feeding bin are squares with side lengths of 20 cm-80 cm, and the height of the feeding bin is 20 cm-50 cm; the feeding upper turning plate and the feeding lower gate plate are both square with the side length of 20-80 cm, and the specific size is determined according to the size of the upper surface and the lower surface of the feeding bin; when the feeding hole is used for feeding, the feeding upper turnover plate is opened, the feeding lower gate plate is closed, and the sludge biomass mixture is temporarily stored in the feeding bin; after the feeding is finished, the feeding upper turnover plate is closed, the feeding lower gate plate is opened, and the sludge biomass mixture enters the cavity of the carbonization furnace for carbonization; the invention can greatly reduce the overflow of odor, waste gas and waste heat in the cavity of the carbonization furnace;
further, the oscillating track comprises a track frame, a track transmission shaft and a track oscillating shaft; the crawler frame is rectangular, the length of the crawler frame is 0.8-3.2 m, the width of the crawler frame is 1.0-3.5 m, the selection of the length and the width corresponds to the selection of the actual length and the width of a cavity of the carbonization furnace, the 20 cm space is reserved at the tail end of the swinging crawler, and a sludge biomass mixture on the swinging crawler can fall into the next layer; the crawler belt is arranged in the crawler belt frame, and the number of the crawler belt is 1-4; the crawler transmission shaft is arranged at one end of the crawler frame; the crawler oscillating shaft is arranged in the middle of one side of the crawler frame; the crawler frame and the crawler can be driven by the crawler oscillating shaft to vibrate to perform oscillating rolling on the sludge biomass mixture; the track can be driven by the track transmission shaft to convey, so that the pyrolyzed sludge biomass mixture enters the next layer of swinging track. The whole material of the swinging crawler belt is stainless steel 316.
The crawler transmission rod comprises a transmission connecting shaft and a transmission disc; the crawler transmission rod, the transmission connecting shaft and the transmission disc are connected with the crawler transmission shaft to drive the crawler transmission shaft to rotate. The whole material of the track transmission rod is stainless steel 316.
Further, the transmission driver comprises a transmission main machine, a transmission belt, a transmission wheel and a transmission button; the transmission main machine, the transmission belt, the transmission wheel and the transmission button drive the track transmission rod to move.
The crawler oscillating rod comprises an eccentric transmission disc and an eccentric transmission connector; the crawler oscillating rod drives the eccentric transmission disc to rotate by clockwise and anticlockwise back-and-forth rotating 270 degrees, so that the eccentric transmission connector and the crawler oscillating shaft are driven to move back and forth, and the oscillating crawler is driven to oscillate.
Furthermore, the eccentric transmission connector comprises a fixed connector, a connecting bearing and a central connecting shaft; the fixed connector and the connecting bearing are fixedly connected through a central connecting shaft; the outer ring of the connecting bearing can rotate.
Further, the swing driver comprises a transmission main shaft, a transmission belt and a transmission auxiliary shaft; the transmission main shaft, the transmission belt and the transmission auxiliary shaft drive the crawler oscillating rod to rotate.
Further, the discharge port comprises a discharge bin, a discharge upper flashboard and a discharge lower turning plate; the discharging bin is in a cuboid shape, the upper surface and the lower surface of the discharging bin are squares with the side length of 15 cm-40 cm, and the height of the discharging bin is 12 cm-40 cm; the discharging upper flashboard is two rectangular plates, the length of each rectangular plate is 15 cm-40 cm, and the width of each rectangular plate is 9.5 cm-20 cm; the discharging lower turning plate is square with the side length of 15-40 cm, and the specific sizes of the discharging upper flashboard and the discharging lower turning plate are determined according to the sizes of the upper surface and the lower surface of the discharging bin; when the discharge port discharges materials, the discharging upper turnover plate is opened, the discharging lower turnover plate is closed, and the carbonized composite biochar is temporarily stored in the discharging bin; after the discharging is finished, the discharging upper flashboard is closed, the discharging lower turnover board is opened, and the composite biochar is discharged out of the carbonization furnace cavity; the invention can greatly reduce the overflow of odor, waste gas and waste heat in the cavity of the carbonization furnace.
A method for sludge treatment by using a vertical internal circulation sequencing batch pyrolysis device comprises the following steps:
(1) preheating a furnace body of vertical sludge carbonization equipment before carbonization, then opening and closing and adjusting power of a combustion machine by a central control system according to the temperature in the carbonization process, simultaneously heating each layer of combustion machine, monitoring the temperature of each layer by a temperature sensor in real time, controlling the temperature of the lowest layer as a target carbonization temperature, and gradually increasing by 10-50 ℃ from top to bottom layer by layer to form a temperature gradient in the furnace; the preheating specifically comprises the following steps: preheating for 20-80 min at 300-600 ℃;
(2) after the furnace body of the vertical sludge carbonization equipment reaches the temperature required by carbonization, the feeding upper turnover plate is opened, the feeding lower gate plate is closed, and the dried sludge biomass mixture enters the feeding bin for temporary storage; then closing the feeding upper turnover plate, opening the feeding lower turnover plate, and allowing the dried sludge biomass mixture to enter the cavity of the carbonization furnace from the feeding hole; at the moment, a proper amount of dried sludge biomass mixture is received by the swing crawler belt on the topmost layer; in the sludge biomass mixture, the biomass accounts for 1-2% of the total weight of the mixture; the biomass comprises more than one of leaves, tea leaves, sawdust, bagasse or water hyacinth; the topmost layer of sludge is pyrolyzed at the lowest temperature and falls into the next layer, the next layer at higher temperature enables the sludge to be heated continuously, and at the moment, organic matters in the sludge are cracked to generate a part of heat to compensate the temperature of the next layer;
(3) the transmission driver drives the transmission connecting shaft and the transmission disc to enable the swinging crawler belt to start transmission; the swinging driver drives the crawler swinging rod, the eccentric transmission disc and the eccentric transmission connector to enable the swinging crawler to start to swing back and forth, and the sludge biomass mixture on the swinging crawler oscillates and is uniformly heated and carbonized;
(4) the conveying time of the topmost layer of the swinging crawler is controlled to be 5-12 min, the sludge biomass mixture on the swinging crawler is heated for 5-12 min and gradually falls down, and the sludge biomass mixture is received by the second layer of the swinging crawler to carry out oscillation carbonization on the second layer of the swinging crawler; then, opening a feeding upper turning plate, closing a feeding lower turning plate, and allowing the dried sludge biomass mixture to enter a feeding bin for temporary storage; then the feeding upper turnover plate is closed, the feeding lower turnover plate is opened, the dried sludge biomass mixture enters the cavity of the carbonization furnace from the feeding hole, and the dried sludge biomass mixture is received by the swing crawler belt at the topmost layer;
(5) in the feeding process, the swinging crawler is driven by a swinging driver, a crawler swinging rod, an eccentric transmission disc and an eccentric transmission connector to continuously oscillate;
(6) during the heating period of 5-20 min, the sludge biomass mixture on the topmost layer and the second layer of swing track gradually falls into the third layer of swing track, and the sludge biomass mixture on the topmost layer of swing track gradually falls into the second layer of swing track; then, opening a feeding upper turning plate, closing a feeding lower turning plate, and allowing the dried sludge biomass mixture to enter a feeding bin for temporary storage; then the feeding upper turnover plate is closed, the feeding lower turnover plate is opened, the dried sludge biomass mixture enters the cavity of the carbonization furnace from the feeding hole, and the dried sludge biomass mixture is received by the swing crawler belt at the topmost layer; and so on until all the swinging crawler belts receive a proper amount of dry sludge biomass mixture; the feeding of the feeding hole and the overturning oscillation of the swinging crawler are automatically controlled by a central control system;
(7) after 4-18 layers of swing tracks, the lowest layer swing track sends the carbonized composite biochar into a composite biochar collecting cavity; the total carbonization time of the sludge biomass mixture is controlled to be 1-2 h;
(8) opening the discharging upper gate plate, and allowing the carbonized composite biochar to enter a discharging bin for temporary storage; the flashboard is closed on the ejection of compact, turns over the board under the ejection of compact and opens, and the compound biological carbon of storing temporarily in the play feed bin discharges the carbide furnace cavity and carries out further utilization.
The invention has the functions of common carbonization of sludge and biomass, uniform carbonization of sludge oscillation, carbonization temperature control, waste heat recycling and the like, the vertical structure plays a role in internal circulation of heat, the heating device enables the temperature in the equipment to have gradient transformation, hot airflow in the equipment performs internal circulation flow, the sludge at the topmost layer falls into the next layer after pyrolysis at the highest temperature, the next layer at the lower temperature enables the sludge to be continuously heated, organic matters in the sludge are cracked to generate a part of heat to compensate the temperature of the next layer, so that the invention has high heat efficiency, and the investment and operation cost is reduced; the invention is a vertical furnace body, the processes of continuous feeding, continuous carbonization and continuous discharging are realized through the swinging and the transmission of the swinging crawler belts, the continuity of long-term high-temperature operation of equipment and the full utilization of the high temperature of a furnace chamber are ensured, the swinging of the swinging crawler belts enables sludge to be uniformly heated, the reaction time is reduced, and the multi-layer swinging crawler belts react step by step, so that the carbonization is more thorough; the invention transmits the temperature of the carbonization furnace through the temperature sensor, controls the starting and stopping number and the combustion power of a plurality of burners through the central control system, plays a role in controlling the temperature in the furnace cavity of the vertical sludge carbonization equipment, can adjust and monitor the temperature up and down as required, and fully utilizes the heat; the burner is arranged outside the furnace, so that the maintenance is convenient; the inner wall of the furnace body is specially treated and has corrosion resistance, so that the invention can be used for carbonizing and incinerating corrosive sludge such as industrial sludge, food sludge and the like.
According to the vertical sludge carbonization equipment, a large amount of waste heat and odor and waste gas generated in the carbonization process of the sludge biomass mixture are discharged through the waste heat gas discharge port, and the other end of the waste heat gas discharge port can be connected into other processes (such as a sludge biomass mixture drying process) for waste heat utilization, or can be connected into a waste gas treatment system for harmless treatment of the odor and waste gas.
The vertical sludge oscillation carbonization equipment can be used as an incinerator by opening the feed inlet, the discharge outlet and the residual heat gas discharge outlet in the use process, and an aerobic environment is formed by mixing air to incinerate solid wastes such as sludge and the like.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the biomass (leaves, tea residues, sawdust, bagasse, water hyacinth and the like) is doped into the sludge, so that the viscosity of the sludge can be effectively reduced, the subsequent carbonization process of the sludge can be favorably carried out, the yield of the biochar is improved, the calorific value of the biochar is increased, and the odor generated in the sludge carbonization process can be reduced.
2. The invention abandons the traditional rotary kiln, adopts the vertical furnace body and the swinging crawler belt to carry out the carbonization of the sludge, can greatly solve the problems of equipment deformation, too fast aging, groveling and the like caused by the long-term high-temperature operation of the equipment, and the vertical furnace body can stably operate and continuously produce for a long time under the high-temperature condition.
3. The vertical structure of the invention plays a role in internal circulation of heat, so that the invention has high thermal efficiency, and the number of the burners, the oscillating caterpillar tracks and the temperature sensors can be selected according to the size of actually required equipment; each layer formation temperature gradient in many combustors can effective control furnace chamber, and topmost layer mud falls into the lower floor of higher temperature after the lower temperature pyrolysis, and the lower floor of higher temperature makes mud continuously be heated, and organic matter schizolysis in the mud produces partly heat this floor temperature this moment, compensates this floor temperature, and the swing of swing track makes mud thermally equivalent, and multilayer track reacts step by step for the carbonization is more thorough, has improved work efficiency when the energy saving.
4. The components such as the burner and the like are arranged outside the furnace, so that the maintenance is convenient; and the inner wall of the furnace body is specially treated and has corrosion resistance, so that the invention can be used for carbonizing corrosive sludge such as industrial sludge, food sludge and the like.
5. The invention has the functions of waste heat utilization and odor and waste gas discharge ports, can discharge the waste heat gas and the odor and waste gas to a drying system for waste heat utilization or a waste gas treatment system for waste gas treatment, and greatly reduces the influence of the odor and the waste gas generated in the sludge carbonization process on the environment.
6. The invention adopts a central control system to automatically control feeding and discharging, automatically control the starting and running of equipment, feed back the real-time temperature of the carbonization furnace according to a temperature sensor, automatically control the temperature of the carbonization furnace, automatically discharge waste heat, odor and waste gas and the like.
Drawings
FIG. 1 is a schematic structural view of a vertical sludge oscillation carbonization apparatus.
FIG. 2 is a schematic structural diagram of a vertical sludge carbonizing apparatus furnace body of a vertical sludge oscillation carbonizing apparatus.
FIG. 3 is a schematic view of the structure of a feed inlet of a vertical sludge oscillation carbonization device.
Fig. 4 is a schematic structural diagram of a swinging crawler of a vertical sludge oscillation carbonization device.
Fig. 5 is a schematic structural diagram of a track transmission rod of a vertical sludge oscillation carbonization device.
Fig. 6 is a schematic structural view of a transfer driver of a vertical sludge oscillation carbonization apparatus.
Fig. 7 is a schematic structural diagram of a caterpillar oscillating rod of a vertical sludge oscillation carbonization device.
Fig. 8 is a schematic structural diagram of an eccentric transmission connector of a caterpillar oscillating rod of a vertical sludge oscillation carbonization device.
Fig. 9 is a schematic structural diagram of a swing driver of a vertical sludge oscillation carbonization device.
Fig. 10 is a schematic structural diagram of a discharge port of a vertical sludge oscillation carbonization device.
The various components in the figure are as follows:
the device comprises a feeding hole 1, a vertical sludge carbonization equipment furnace body 2, a swinging crawler 3, a crawler transmission rod 4, a conveying driver 5, a heating device 6, a crawler swinging rod 7, a swinging driver 8, a temperature sensor 9, a discharging hole 10, a residual hot gas discharging hole 11, a central control system connecting line 12, a central control system 13, a carbonization furnace cavity 201, a swinging crawler mounting hole 202, a crawler swinging rod mounting hole 203, a burner mounting hole 204, a temperature sensor mounting hole 205, a composite biochar collecting cavity 206, a furnace body supporting foot 207, a feeding bin 101, a feeding upper turning plate 102, a feeding lower gate plate 103, a crawler frame 301, a crawler 302, a crawler transmission shaft 303, a crawler swinging shaft 304, a connecting shaft 401, a transmission disc 402, a transmission host 501, a transmission belt 502, a transmission wheel 503, a transmission button 504, an eccentric transmission disc 701, an eccentric transmission connector 702, a fixed connector 703, a connecting bearing, The device comprises a central connecting shaft 705, a transmission main shaft 801, a transmission belt 802, a transmission auxiliary shaft 803, a discharging bin 1001, a discharging upper turning plate 1002 and a discharging lower turning plate 1003.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It will be understood that when an element is referred to as being "mounted on" another element, it can be directly mounted on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "horizontal", "left", "right" and the like are used herein for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The present invention will be described in further detail with reference to specific examples, but the embodiments of the present invention are not limited thereto, and may be carried out with reference to conventional techniques for process parameters not particularly noted.
The device of the invention is as follows:
as shown in fig. 1 to 10, in a vertical internal circulation sequencing batch pyrolysis apparatus, more than one oscillating caterpillar 3 is arranged inside a furnace body 2 of a vertical sludge carbonization apparatus, a vertical arrangement mode is adopted between each oscillating caterpillar 3, a heating device 6 is arranged on the outer wall surface of the apparatus, and heating ports of the heating device 6 are positioned at two sides of the oscillating caterpillar 3; the swinging crawler 3 has the functions of swinging and rolling the sludge on the plate surface; the heating device enables the temperature in the equipment to have gradient transformation, and hot air flow in the equipment performs internal circulation flow. The heating device 6 is a burner, a stainless steel electric heating pipe, a ceramic electric heater, a graphene heater and the like. One end of the swinging crawler 3 is provided with a crawler transmission rod 4; one end of the swinging crawler 3 is connected with a transmission driver 5 through a crawler transmission rod 4; a crawler belt swinging rod 7 is arranged on one side of the swinging crawler belt 3; one side of the swinging crawler 3 is connected with a swinging driver 8 through a crawler swinging rod 7. A temperature sensor 9 is arranged in the equipment box body. The equipment further comprises a track transmission rod 4, a transmission driver 5, a track swinging rod 7, a swinging driver 8, a temperature sensor 9, a central control system connecting wire 12 and a central control system 13; the heating device is a burner 6; the swinging crawler 3 is horizontally arranged in the furnace body 2 of the vertical sludge carbonization equipment; the track transmission rod 4 is arranged at one end of the swinging track 3; the other end of the track transmission rod 4 is connected with a transmission driver 5; the swinging crawler 3 is driven by a conveying driver 5 and a crawler transmission rod 4 to convey; the crawler belt swinging rod 7 is arranged on one side of the swinging crawler belt 3; the other end of the crawler belt swinging rod 7 is connected with a transmission driver 8; the swinging crawler 3 is driven by a swinging driver 8 and a crawler swinging rod 6 to swing; the burners 6 are arranged on two sides of the furnace body 2 of the vertical sludge carbonization equipment; said temperature beingThe sensors 9 are arranged at two sides of the furnace body 2 of the vertical sludge carbonization equipment. The equipment comprises a central control system 13, wherein the central control system 13 is respectively electrically connected with the swinging crawler 3, the conveying driver 5, the swinging driver 8, the temperature sensor 9 and the heating device and is used for acquiring temperature data and controlling the opening and closing and the power of the conveying driver 5, the swinging driver 8, the swinging crawler 3 and the heating device; the central control system 13 controls the opening and closing and the running power of the conveying driver 5, adjusts the conveying speed of the swinging crawler 3 and adjusts the carbonization time of the sludge biomass mixture; the central control system 13 controls the opening and closing and the running power of the swing driver 8 and adjusts the swing frequency of the swing crawler 3; the central control system 13 controls the on-off and combustion power of the heating device, and adjusts the carbonization temperature and temperature gradient in the furnace body 2 of the vertical sludge carbonization equipment. The vertical sludge carbonization equipment furnace body 2 comprises a feeding hole 1, a carbonization furnace cavity 201, a swinging crawler mounting hole 202, a crawler swinging rod mounting hole 203, a burner mounting hole 204, a temperature sensor mounting hole 205, a composite biochar collecting cavity 206, furnace body supporting legs 207, a discharging hole 10 and a residual heat gas discharging hole 11; the feed inlet 1 is arranged at the edge of the top of the furnace body 2 of the vertical sludge carbonization equipment; the discharge port 10 is arranged at the bottom of the furnace body 2 of the vertical sludge carbonization equipment; the residual heat gas outlet 11 is arranged at the edge of the top of the furnace body 2 of the vertical sludge carbonization equipment, the residual heat gas outlet 11 in use is hermetically connected with a residual heat gas discharge pipe, and the unused residual heat gas outlet 11 is hermetically closed, so that the heat gas does not overflow; the swinging crawler belt mounting ports 202 are arranged on two sides of the carbonization furnace chamber 201; the crawler oscillating rod mounting openings 203 are arranged at one side of the carbonization furnace cavity 201 close to the middle row; the burner mounting ports 204 are arranged at the middle vertical part of the carbonization furnace cavity 201 and are uniformly distributed; the burner mounting ports 204 are arranged at two sides of the carbonization furnace cavity 201; the temperature sensor mounting holes 205 are formed in the middle vertical part of the carbonization furnace cavity 201 and are uniformly distributed; the temperature sensor mounting ports 205 are arranged on two sides of the carbonization furnace cavity 201; the composite biochar collecting cavity 206 is arranged at the bottom of the carbonization furnace cavity 201 and is an inverted step-shaped cavity, and the angle between the tetrahedral trapezoid and the horizontal plane is 30-45 degrees; the vertical sludge carbonization equipment supportThe legs 207 are disposed at four corners of the bottom of the carbonization furnace cavity 201. The feeding hole 1 comprises a feeding bin 101, a feeding upper turning plate 102 and a feeding lower turning plate 103; the top of the feeding bin 101 is provided with a feeding upper turning plate 102, and the bottom of the feeding bin is provided with a feeding lower gate plate 103. The oscillating crawler 3 comprises a crawler frame 301, a crawler 302, a crawler transmission shaft 303 and a crawler oscillating shaft 304; the crawler 302 is arranged on the crawler frame 301; the crawler transmission shaft 303 is arranged at one end of the crawler frame 301; the crawler swinging shaft 304 is arranged on one side of the middle of the crawler frame 301; the caterpillar band 302 can be driven by a caterpillar band transmission shaft 303 to convey, so that the pyrolyzed sludge biomass mixture enters the next layer of swinging caterpillar band 3; the crawler frame 301 and the crawler 302 can be driven by the crawler oscillating shaft 304 to oscillate to perform oscillating rolling on the sludge biomass mixture. The track transmission rod 4 comprises a transmission connecting shaft 401 and a transmission disc 402; the transmission connecting shaft 401 is arranged on the crawler transmission rod 4, the transmission disc 402 is eccentrically arranged on the transmission connecting shaft 401, and the center of the other side of the transmission disc 402 is connected with the crawler transmission shaft 303; the track transmission rod 4 is controlled by the transmission driver 5 to drive the transmission connecting shaft 401 and the transmission disc 402 to eccentrically rotate, and further drive the track transmission shaft 303 to rotate, so that the swinging track 3 transmits the sludge biomass mixture. The transmission driver 5 comprises a transmission main machine 501, a transmission belt 502, a transmission wheel 503 and a transmission button 504; the transmission belt 502 is arranged between the transmission main machine 501 and the transmission wheel 503, and the transmission main machine 501 can drive the transmission wheel 503 to rotate through the transmission belt 502; the transmission button 504 is arranged on the upper edge of the transmission wheel 503, and the crawler transmission rod 4 is arranged on the transmission button 504; the transmission wheel 503 drives the transmission button 504 and the track transmission rod 4 to move. The crawler swinging rod 7 comprises an eccentric transmission disc 701 and an eccentric transmission connector 702; the eccentric transmission disc 701 is arranged on the swinging rod, the eccentric transmission connector 702 is arranged on the eccentric transmission disc 701, and the other end of the eccentric transmission connector 702 is connected with the crawler swinging shaft 304; the crawler belt swinging rod 7 is driven to rotate by a swinging driver 8; the track swinging rod 7 drives the eccentric transmission disc 701 to rotate by rotating clockwise and anticlockwise back and forth by 270 degrees, so as to drive the eccentric transmission connector 702 and the track swinging shaft 304 to move back and forth, and further drive the swinging track 3 to swing. Eccentric transmission connector 702 bagComprises a fixed connector 703, a connecting bearing 704 and a central connecting shaft 705; the fixed connector 703 is fixedly connected with the connecting bearing 704 through a central connecting shaft 705; the outer ring of the connecting bearing 704 is rotatable. The swing driver 8 comprises a transmission main shaft 801, a transmission belt 802 and a transmission auxiliary shaft 803; the transmission belt 802 is arranged between the transmission main shaft 801 and the transmission auxiliary shaft 803, and the transmission main shaft 801 can drive the transmission auxiliary shaft 803 to rotate through the transmission belt 802; the crawler belt swinging rod 7 is arranged on the transmission auxiliary shaft 803, and the crawler belt swinging rod 7 is driven to rotate by the transmission auxiliary shaft 803. The discharge port 10 comprises a discharge bin 1001, a discharge upper gate plate 1002 and a discharge lower turning plate 1003; the top of the discharging bin 1001 is provided with a discharging upper gate plate 1002; the bottom of the discharging bin 1001 is provided with a discharging lower turning plate 1003. The feed inlet 1 is a square with the side length of 20 cm-80 cm; the sludge biomass mixture enters a carbonization furnace from the feed inlet 1; the size of the feed port 1 can be designed according to the feeding amount of the sludge biomass mixture to be carbonized; the carbonization furnace cavity 201 is a rectangular cavity and is a main space for carbonizing the sludge biomass mixture; the length of the cavity is 1.0-3.5 m, the width of the cavity is 1.0-3.5 m, the height of the cavity is 1.0-3.5 m, and the volume of the cavity is 1.000 m3~42.1095 m3(ii) a The treatment capacity of the sludge biomass mixture is 1.0 t/h-5.5 t/h; the number of the swing track mounting openings 202 is 4-16, the swing track mounting openings are arranged on two sides of the carbonization furnace cavity 201 and are evenly distributed; the actual number of the holes formed in the swinging crawler belt mounting port 202 is determined according to the actual design size of the carbonization furnace cavity 201, and the reserved swinging crawler belt mounting port 202 can be opened or closed as required; the crawler belt swinging rod mounting openings 203 are square with the side length of 50 cm-150 cm, the number of the crawler belt swinging rod mounting openings 203 is 4-16, and the positions of the crawler belt swinging rod mounting openings are one row of the edge of one side of the carbonization furnace cavity 201; the actual number of the holes formed in the mounting hole 203 of the crawler oscillating rod is determined according to the actual design size of the cavity 201 of the carbonization furnace, and the reserved mounting hole 203 of the crawler oscillating rod can be opened or closed as required; the burner mounting ports 204 are circular with the diameter of 50 cm-150 cm, the number of the designed burner mounting ports 204 is 4-16, the middle vertical part of the carbonization furnace cavity 201 is arranged, and the burner mounting ports are uniformly distributed(ii) a The burner mounting ports 204 are arranged at two sides of the carbonization furnace cavity 201; the actual number of the holes of the burner mounting port 204 is determined according to the actual design size of the carbonization furnace cavity 201, and the reserved burner mounting port 204 can be opened or closed as required; the temperature sensor mounting openings 205 are round with the diameter of 2 cm-5 cm, the number of the temperature sensor mounting openings 205 is 4-16, and the temperature sensor mounting openings are uniformly distributed at the middle vertical part of the carbonization furnace cavity 201; the temperature sensor mounting ports 205 are arranged on two sides of the carbonization furnace cavity 201; the actual number of the holes formed in the temperature sensor mounting port 205 is determined according to the actual design size of the carbonization furnace cavity 201, and the reserved temperature sensor mounting port 205 can be opened or closed as required; the composite biochar collecting cavity 206 is arranged at the bottom of the carbonization furnace cavity 201 and is an inverted step-shaped cavity, and the angle between the tetrahedral trapezoid and the horizontal plane is 30-45 degrees; the composite biochar collecting cavity 206 is responsible for collecting composite biochar particles falling after carbonization in the carbonization furnace cavity 201; the supporting legs 207 of the vertical sludge carbonization equipment are arranged at four corners of the bottom of the cavity 201 of the carbonization furnace, the number of the supporting legs is 4 or 8, and the height of the supporting legs is 0.6-1.0 m; the discharge hole 10 is a square with the side length of 15 cm-40 cm; the discharge hole 10 is responsible for discharging the composite biochar particles collected in the composite biochar collecting cavity 205; the residual heat gas outlet 11 is circular with the diameter of 10 cm-30 cm; the number of the residual heat gas outlets 11 is 2-4, and the reserved residual heat gas outlets 11 can be opened or closed as required; the residual heat gas outlet 11 is responsible for leading out residual heat and odor waste gas generated in the carbonization process in the furnace body 2 of the vertical sludge carbonization equipment into a waste gas residual heat treatment system or a drying system for residual heat utilization; the whole material of the furnace body 2 of the vertical sludge carbonization equipment is stainless steel 316. The feeding hole 1 comprises a feeding bin 101, a feeding upper turning plate 102 and a feeding lower turning plate 103; the feeding bin 101 is in a cuboid shape, the upper surface and the lower surface of the feeding bin are squares with side lengths of 20 cm-80 cm, and the height of the feeding bin is 20 cm-50 cm; the feeding upper turning plate 102 and the feeding lower gate plate 103 are both square with the side length of 20 cm-80 cm, and the specific size is determined according to the size of the upper surface and the lower surface of the feeding bin 101; when the feeding port 1 feeds materials, the feeding upper copy plate 102 is opened, the feeding lower copy plate 103 is closed, and the sludge biomass mixture is temporarily stored in the feeding bin 101;after the feeding is finished, the feeding upper turning plate 102 is closed, the feeding lower flashboard 103 is opened, and the sludge biomass mixture enters the cavity 201 of the carbonization furnace for carbonization; the invention can greatly reduce the overflow of odor, waste gas and waste heat in the cavity 201 of the carbonization furnace; the oscillating crawler 3 comprises a crawler frame 301, a crawler 302, a crawler transmission shaft 303 and a crawler oscillating shaft 304; the crawler frame 301 is rectangular, the length is 0.8-3.2 m, the width is 1.0-3.5 m, the selection of the length and the width corresponds to the selection of the actual length and the width of the carbonization furnace cavity 201, the 20 cm space is reserved at the tail end of the swinging crawler 3, and the sludge biomass mixture on the swinging crawler 3 can fall into the next layer; the crawler belts 302 are arranged in the crawler belt frames 301, and the number of the crawler belts is 1-4; the crawler transmission shaft 303 is arranged at one end of the crawler frame 301; the crawler swinging shaft 304 is arranged in the middle of one side of the crawler frame 301; the crawler frame 301 and the crawler 302 can be driven by the crawler oscillating shaft 304 to vibrate to shake and roll the sludge biomass mixture; the caterpillar 302 can be driven by a caterpillar transmission shaft 303 to convey, so that the pyrolyzed sludge biomass mixture enters the next layer of swinging caterpillar 3. The whole material of the swinging crawler 3 is stainless steel 316. The track transmission rod 4 comprises a transmission connecting shaft 401 and a transmission disc 402; the crawler transmission rod 4, the transmission connecting shaft 401 and the transmission disc 402 are connected with the crawler transmission shaft 303 to drive the crawler transmission shaft 303 to rotate. The whole material of the track transmission rod 4 is stainless steel 316. The transmission driver 5 comprises a transmission main machine 501, a transmission belt 502, a transmission wheel 503 and a transmission button 504; the transmission main machine 501, the transmission belt 502, the transmission wheel 503 and the transmission button 504 drive the track transmission rod 4 to move. The crawler swinging rod 7 comprises an eccentric transmission disc 701 and an eccentric transmission connector 702; the track swinging rod 7 drives the eccentric transmission disc 701 to rotate by rotating clockwise and anticlockwise back and forth by 270 degrees, so as to drive the eccentric transmission connector 702 and the track swinging shaft 304 to move back and forth, and further drive the swinging track 3 to swing. The eccentric transmission connector 702 comprises a fixed connector 703, a connecting bearing 704 and a central connecting shaft 705; the fixed connector 703 is fixedly connected with the connecting bearing 704 through a central connecting shaft 705; the outer ring of the connecting bearing 704 is rotatable. The swing driver 8 comprises a transmission main shaft 801, a transmission belt 802 and a transmission auxiliary shaft803; the transmission main shaft 801, the transmission belt 802 and the transmission auxiliary shaft 803 drive the track swinging rod 7 to rotate. The discharge port 10 comprises a discharge bin 1001, a discharge upper gate plate 1002 and a discharge lower turning plate 1003; the discharging bin 1001 is in a cuboid shape, the upper surface and the lower surface of the discharging bin are squares with the side length of 15 cm-40 cm, and the height of the discharging bin is 12 cm-40 cm; the discharging upper gate plate 1002 is rectangular, 15 cm-40 cm long and 9.5 cm-20 cm wide; the discharging lower turning plate 1003 is square with the side length of 15 cm-40 cm, and the specific sizes of the discharging upper gate plate 1002 and the discharging lower turning plate 1003 are determined according to the sizes of the upper surface and the lower surface of the discharging bin 1001; when the discharge port 10 discharges materials, the discharge upper turning plate 1002 is opened, the discharge lower turning plate 1003 is closed, and the carbonized composite biochar is temporarily stored in the discharge bin 1001; after the discharging is finished, the discharging upper flashboard 1002 is closed, the discharging lower turning board 1003 is opened, and the composite biochar is discharged out of the carbonization furnace cavity 201; the invention can greatly reduce the overflow of odor, waste gas and waste heat in the cavity 201 of the carbonization furnace. According to the vertical sludge carbonization equipment, a large amount of waste heat and odor and waste gas generated in the carbonization process of the sludge biomass mixture are discharged through the waste heat gas discharge port, and the other end of the waste heat gas discharge port can be connected into other processes (such as a sludge biomass mixture drying process) for waste heat utilization, or can be connected into a waste gas treatment system for harmless treatment of the odor and waste gas. The vertical sludge oscillation carbonization equipment can be used as an incinerator by opening the feed inlet, the discharge outlet and the residual heat gas discharge outlet in the use process, and an aerobic environment is formed by mixing air to incinerate solid wastes such as sludge and the like.
The carbonization furnace cavity in the invention can also adopt a circular design, and the diameter of the carbonization furnace cavity is 2 m.
The following examples were processed using a square carbide furnace chamber.
Example 1
The low-temperature carbonization process is adopted, the treatment capacity of a biomass mixture (the biomass content is 2%) of the sludge and the sludge dredged from the dry water body is required to be 850 kg/h:
1) the furnace body 2 of the vertical sludge carbonization equipment is provided with 16 swinging crawler belts 3, 8 burners and 8 temperature sensors 9; the central control system 13 controls the maximum power starting of 8 burners 6 to preheat the furnace body 2 of the vertical sludge carbonization equipment; preheating the highest target temperature of 300 ℃, starting 8 burners 6 at the same time, when the temperature of the uppermost layer reaches 230 ℃, closing the uppermost burner 6, when the temperature of the third layer reaches 240 ℃, closing the second burner 6, and so on until the temperature of the lowest layer reaches 300 ℃, and feeding back the temperature in the cavity 201 of the carbonization furnace in real time by using a temperature sensor 9;
2) after the preheating temperature reaches 300 ℃, the temperature sensor 9 feeds back information to the central control system 13, and the transmission driver 5 drives the crawler transmission rod 4 to start transmission by the swinging crawler 3; the swinging driver 8 drives the caterpillar swinging rod 7 to make the swinging caterpillar 3 start swinging;
3) the central control system 13 controls the feeding upper turning plate 102 to be opened, the feeding lower turning plate 103 to be closed, and 80 kg of dried dredged sludge biomass mixture enters the feeding bin 101 for temporary storage; then, the feeding upper turning plate 102 is closed, the feeding lower turning plate 103 is opened, and the dried dredged sludge and biomass mixture enters the cavity 201 of the carbonization furnace from the feeding hole 1; 80 kg of dry dredged sludge biomass mixture is carried and oscillated by the swinging crawler 3 at the topmost layer;
4) the conveying time of the topmost layer swinging crawler 3 is 5 min, namely the dredged sludge and sludge biomass mixture on the topmost layer swinging crawler 3 falls after being heated for 5 min and is received by the second layer swinging crawler 3; then, the feeding upper turning plate 102 is opened, the feeding lower turning plate 103 is closed, and 80 kg of dry dredged sludge biomass mixture enters the feeding bin 101 for temporary storage; then, the feeding upper turning plate 102 is closed, the feeding lower turning plate 103 is opened, the dry dredged sludge biomass mixture enters the carbonization furnace cavity 201 from the feeding hole 1, and 80 kg of the dry dredged sludge biomass mixture is received by the topmost swing crawler 3; the conveying process of the swinging crawler 3 and the feeding process of the feeding port 1 are carried out, the swinging crawler keeps a swinging oscillation state, and the biomass mixture of the dried dredged sludge and sludge keeps a uniformly heated state;
5) after the sludge and sludge biomass dredging mixture on the topmost layer and the second layer of swinging crawler 3 is heated for 5 min, the sludge and sludge biomass dredging mixture on the second layer of swinging crawler 3 is conveyed to fall into the third layer of swinging crawler 3; then the dredged sludge and biomass mixture on the topmost layer of oscillating track 3 falls into the second layer of oscillating track 3 through conveying; then, the feeding upper turning plate 102 is opened, the feeding lower turning plate 103 is closed, and a proper amount of dry dredged sludge biomass mixture enters the feeding bin 101 for temporary storage; then, the feeding upper turning plate 102 is closed, the feeding lower turning plate 103 is opened, the dry dredged sludge biomass mixture enters the carbonization furnace cavity 201 from the feeding hole 1, and 80 kg of the dry dredged sludge biomass mixture is received by the topmost swing crawler 3; in the same way, the operation is repeated until all the swinging crawler belts 3 receive the dry dredged sludge and sludge biomass mixture;
6) after the dry dredged sludge and sludge biomass mixture is heated and oscillated step by the 16 layers of swinging tracks 3, the sludge on the upper layer is pyrolyzed at a lower temperature and falls into the next layer, the sludge is heated continuously by the next layer at a higher temperature, at the moment, organic matters in the sludge are cracked to generate a part of heat, the temperature of the layer is compensated, hot gas circularly flows in the furnace due to the temperature difference in the furnace, the dredged sludge and sludge biomass mixture on the swinging tracks 3 at the bottommost layer is carbonized for 90 min to generate composite biochar; the bottom swing crawler 3 conveys the carbonized composite biochar into the composite biochar collecting cavity 205;
7) after the dried dredged sludge biomass mixture is carbonized for 1.5 h, the central control system 13 controls the opening of the discharging upward turning plate 1002, and the carbonized composite biochar enters the discharging bin 1001 for temporary storage; the discharging upper turning plate 1002 is closed, the discharging lower turning plate 1003 is opened, and the composite biochar temporarily stored in the discharging bin is discharged out of the carbonization furnace cavity 201 and transported to a storage bin for storage; the system continuously operates for 300 days, and the generated composite biochar is about 420 kg in 1 h;
8) in the carbonization process, the temperature in the furnace body 2 of the vertical sludge carbonization equipment is monitored by the temperature sensor 9 in real time, when the highest temperature deviates from 300 +/-30 ℃, the temperature sensor 9 feeds back information to the central control system 13, the central control system controls the power increase and decrease of the burner 6, the temperature in the furnace body 2 of the vertical sludge carbonization equipment is regulated and controlled, and the temperature of the furnace chamber is kept at 300 +/-30 ℃;
9) a large amount of waste heat and odor waste gas generated in the carbonization process of the sludge biomass mixture are discharged to other processes (such as a sludge biomass mixture drying process) through a waste heat gas outlet 11 for waste heat utilization, or are connected into a waste gas treatment system for harmless treatment of the odor waste gas.
Example 2
The high-temperature rapid carbonization process is adopted, the treatment capacity of a dry papermaking sludge biomass mixture (the content of biomass in the mixture is 1.5%) is required to be 1200 kg/h:
1) the furnace body 2 of the vertical sludge carbonization equipment is provided with 6 swinging crawler belts 3, 6 burners and 6 temperature sensors 9; the maximum power starting of 6 burners is controlled by a central control system 13, the preheating target temperature of a furnace body 2 of the vertical sludge carbonization equipment is 600 ℃ at most, the 6 burners 6 are started simultaneously, when the temperature of the uppermost layer reaches 500 ℃, the uppermost burner 6 is closed, when the temperature of the second layer reaches 520 ℃, the second burner 6 is closed, and the rest is done in the same way until the temperature of the lowest layer reaches 600 ℃, the swinging crawler 3 starts to convey and oscillate, and the temperature in the cavity 201 of the carbonization furnace is fed back by a temperature sensor 9 in real time;
2) the feeding upper turning plate 102 is opened, the feeding lower turning plate 103 is closed, and 200 kg of dry papermaking sludge biomass mixture enters the feeding bin 101 for temporary storage; then, the feeding upper turning plate 102 is closed, the feeding lower turning plate 103 is opened, and the dry papermaking sludge biomass mixture enters the carbonization furnace cavity 201 from the feeding hole 1; 200 kg of dry papermaking sludge biomass mixture is carried and oscillated by the swinging crawler 3 at the topmost layer;
3) the conveying time of the topmost layer swinging crawler 3 is 10 min, namely the papermaking sludge biomass mixture on the topmost layer swinging crawler 3 falls down after being heated for 10 min and is received by the second layer swinging crawler 3; then, the feeding upper turning plate 102 is opened, the feeding lower turning plate 103 is closed, and 200 kg of the dry papermaking sludge biomass mixture enters the feeding bin 101 for temporary storage; then, the feeding upper turning plate 102 is closed, the feeding lower turning plate 103 is opened, the dried papermaking sludge biomass mixture enters the carbonization furnace cavity 201 from the feeding hole 1, and 200 kg of the dried papermaking sludge biomass mixture is received by the topmost swing crawler 3; the conveying process of the swing crawler 3 and the feeding process of the feeding port 1 are carried out, the swing crawler keeps a swing oscillation state, and the dried papermaking sludge and biomass mixture keeps a uniformly heated state;
4) after the papermaking sludge biomass mixture on the topmost layer and the second layer of swinging crawler 3 is heated for 10 min, the papermaking sludge biomass mixture on the second layer of swinging crawler 3 falls into the third layer of swinging crawler 3, and the papermaking sludge biomass mixture on the topmost layer of swinging crawler 3 falls into the second layer of swinging crawler 3; then, the feeding upper turning plate 102 is opened, the feeding lower turning plate 103 is closed, and a proper amount of dry paper sludge biomass mixture enters the feeding bin 101 for temporary storage; then, the feeding upper turning plate 102 is closed, the feeding lower turning plate 103 is opened, the dried papermaking sludge biomass mixture enters the carbonization furnace cavity 201 from the feeding hole 1, and 200 kg of the dried papermaking sludge biomass mixture is received by the topmost swing crawler 3; in the same way, the drying of the papermaking sludge biomass mixture is carried out until all the swinging crawler belts 3 are supported;
5) after the dry papermaking sludge biomass mixture is heated step by step through the 6 layers of swinging tracks 3 and oscillated, the upper layer sludge is pyrolyzed at a lower temperature and falls into the next layer, the lower layer at a higher temperature enables the sludge to be heated continuously, at the moment, organic matters in the sludge are cracked to generate a part of heat to compensate the temperature of the layer, the temperature difference in the furnace body is that hot gas circularly flows in the furnace, and the sludge biomass mixture on the swinging track 3 at the bottommost layer is carbonized for 1 hour to generate composite biochar; the carbonized composite biochar on the swinging crawler 3 at the bottommost layer is conveyed into the composite biochar collecting cavity 205;
6) after the dry paper-making sludge biomass mixture is carbonized for 1 hour, the central control system 13 controls the opening of the discharging upward turning plate 1002, and the carbonized composite biochar enters the discharging bin 1001 for temporary storage; the discharging upper turning plate 1002 is closed, the discharging lower turning plate 1003 is opened, and the composite biochar temporarily stored in the discharging bin is discharged out of the carbonization furnace cavity 201 and transported to a storage bin for storage; the system is operated continuously, and the generated composite biochar is about 600 kg in 1 h;
7) in the carbonization process, the temperature in the furnace body 2 of the vertical sludge carbonization equipment is monitored by the temperature sensor 9 in real time, when the temperature deviates from 600 +/-20 ℃, the temperature sensor 9 feeds back information to the central control system 13, the central control system controls the power increase and decrease of the burner 6, the temperature in the furnace body 2 of the vertical sludge carbonization equipment is regulated and controlled, and the temperature of the furnace chamber is kept at 600 +/-20 ℃;
8) a large amount of waste heat and odor and waste gas generated in the carbonization process of the sludge biomass mixture are discharged to a spraying system through a waste heat gas outlet 11 to be cooled and then are connected into a waste gas and waste water treatment system to carry out harmless treatment on waste gas and waste water.
Example 3
The high-temperature incineration process is adopted, and the treatment capacity of the dry sludge (paper sludge adopted in the embodiment) is required to be 1200 kg/h:
1) the furnace body 2 of the vertical sludge carbonization equipment is provided with 6 swinging crawler belts 3, 6 burners 6 and 6 temperature sensors 9; the central control system 13 controls the maximum power starting of 6 burners 6, the oscillating caterpillar band 3 starts oscillating, the feed inlet 1, the discharge outlet 10 and the residual heat gas discharge outlet 11 are all opened, and the temperature in the cavity 201 of the carbonization furnace is fed back by the temperature sensor 9 in real time;
2) 200 kg of dry sludge enters a cavity 201 of the carbonization furnace from a feed inlet 1; 200 kg of dried sludge is carried and oscillated by the swinging crawler 3 at the topmost layer;
3) after the sludge on the topmost layer of the swinging crawler 3 is heated for 10 min, the sludge falls down and is received by the second layer of the swinging crawler 3; then 200 kg of dry sludge enters the cavity 201 of the carbonization furnace from the feed inlet 1, and 200 kg of dry sludge is received by the swinging crawler 3 at the topmost layer; the conveying process of the swinging crawler 3 and the feeding process of the feeding port 1 are carried out, the swinging crawler keeps a swinging oscillation state, and the dried sludge keeps a uniformly heated state;
4) after the sludge on the topmost layer and the second layer of swinging crawler 3 is heated for 10 min, the sludge on the second layer of swinging crawler 3 falls into the third layer of swinging crawler 3, and the sludge on the topmost layer of swinging crawler 3 falls into the second layer of swinging crawler 3; then, a proper amount of dried sludge enters the cavity 201 of the carbonization furnace from the feeding hole 1, and 200 kg of dried sludge is received by the swinging crawler 3 at the topmost layer; by analogy, until all the swinging crawler belts 3 receive the dried sludge;
5) after the dried sludge is incinerated step by step and oscillated by 6 layers of swinging crawler belts 3, the sludge on the swinging crawler belt 3 at the bottommost layer is incinerated for 1 hour at high temperature, organic matters and harmful substances are gasified, and only ash is left; the swinging crawler 3 at the bottom layer overturns 180 degrees, and ash is discharged from the discharge hole 10.
The above description is intended to describe in detail the preferred embodiments of the present invention, but the embodiments are not intended to limit the scope of the invention, and all equivalent changes and modifications made within the technical spirit of the present invention should fall within the scope of the invention covered by the present invention.
Claims (17)
1. The vertical internal circulation sequencing batch pyrolysis equipment is characterized in that more than one swinging crawler (3) is arranged in a furnace body (2) of the vertical sludge carbonization equipment, a vertical arrangement mode is adopted between every two swinging crawler (3), a heating device is arranged on the outer wall surface of the equipment, and heating ports of the heating device are positioned on two sides of the swinging crawler (3); the swinging crawler belt (3) has the functions of swinging and rolling the sludge on the plate surface; the heating device enables the temperature in the equipment to have gradient transformation, and hot air flow in the equipment performs internal circulation flow;
the swinging crawler belt (3) is horizontally arranged in the furnace body (2) of the vertical sludge carbonization equipment; the track transmission rod (4) is arranged at one end of the swinging track (3); the other end of the track transmission rod (4) is connected with a transmission driver (5); the swinging crawler (3) is driven by a transmission driver (5) and a crawler transmission rod (4) to transmit; the crawler belt swinging rod (7) is arranged on one side of the swinging crawler belt (3); the other end of the crawler belt swinging rod (7) is connected with a transmission driver (8); the swinging crawler (3) is driven to swing by a swinging driver (8) and a crawler swinging rod (6); the burners (6) are arranged on two sides of the furnace body (2) of the vertical sludge carbonization equipment; the temperature sensors (9) are arranged on two sides of the furnace body (2) of the vertical sludge carbonization equipment.
2. The vertical internal circulation sequencing batch pyrolysis apparatus of claim 1, wherein the heating device (6) is a burner, a stainless steel electric heating tube, a ceramic electric heater or a graphene heater.
3. The vertical internal circulation sequencing batch pyrolysis apparatus according to claim 1 or 2, further comprising a central control system (13), wherein the central control system (13) is electrically connected to the conveying driver (5), the swing driver (8), the temperature sensor (9) and the heating device through a central control system connection line, and is configured to collect temperature data and control the on/off and power of the conveying driver (5), the swing driver (8), the swing crawler (3) and the heating device; the central control system (13) controls the opening and closing and the running power of the conveying driver (5), adjusts the conveying speed of the swinging crawler (3), and adjusts the carbonization time of the sludge biomass mixture; the central control system (13) controls the opening and closing and the running power of the swing driver (8) and adjusts the swing frequency of the swing crawler (3); the central control system (13) controls the opening and closing of the heating device and the combustion power, and adjusts the carbonization temperature and the temperature gradient in the furnace body (2) of the vertical sludge carbonization equipment.
4. The vertical internal circulation sequencing batch pyrolysis device of claim 1, wherein the furnace body (2) of the vertical sludge carbonization device comprises a feed inlet (1), a carbonization furnace cavity (201), a swinging crawler belt mounting port (202), a crawler belt swinging rod mounting port (203), a burner mounting port (204), a temperature sensor mounting port (205), a composite biochar collecting cavity (206), furnace body supporting legs (207), a discharge port (10) and a residual heat gas discharge port (11);
the feed inlet (1) is arranged on the top edge of the furnace body (2) of the vertical sludge carbonization equipment; the discharge hole (10) is arranged at the bottom of the furnace body (2) of the vertical sludge carbonization equipment; the residual heat gas outlet (11) is arranged at the top edge of the furnace body (2) of the vertical sludge carbonization equipment, the residual heat gas outlet (11) in use is hermetically connected with a residual heat gas discharge pipe, and the unused residual heat gas outlet (11) is hermetically closed, so that the heat gas does not overflow;
the swinging crawler belt mounting openings (202) are arranged on two sides of the carbonization furnace chamber (201);
the crawler oscillating rod mounting openings (203) are arranged at one side of the carbonization furnace cavity (201) close to the middle row;
the burner mounting ports (204) are arranged in the middle vertical part of the carbonization furnace cavity (201) and are uniformly distributed; the burner mounting ports (204) are arranged at two sides of the carbonization furnace cavity (201);
the temperature sensor mounting openings (205) are formed in the middle vertical part of the carbonization furnace cavity (201) and are uniformly distributed; the temperature sensor mounting ports (205) are arranged on two sides of the carbonization furnace cavity (201);
the composite biochar collecting cavity (206) is arranged at the bottom of the carbonization furnace cavity (201) and is an inverted step-shaped cavity, and the angle between a tetrahedral trapezoid and the horizontal plane is 30-45 degrees;
the vertical sludge carbonization equipment supporting legs (207) are arranged at four corners of the bottom of the carbonization furnace cavity (201).
5. The vertical internally circulating sequencing batch pyrolysis apparatus of claim 4, wherein the feed inlet (1) comprises a feed bin (101), a feed upper flap (102) and a feed lower shutter (103); the top of the feeding bin (101) is provided with a feeding upper turning plate (102), and the bottom of the feeding bin is provided with a feeding lower gate plate (103).
6. The vertical internal circulation sequencing batch pyrolysis apparatus of claim 1 or 3, wherein the oscillating track (3) comprises a track frame (301), a track (302), a track drive shaft (303) and a track oscillating shaft (304); the crawler (302) is arranged on the crawler frame (301); the crawler transmission shaft (303) is arranged at one end of the crawler frame (301); the crawler swinging shaft (304) is arranged on one side of the middle of the crawler frame (301); the caterpillar tracks (302) are driven by a caterpillar track transmission shaft (303) to convey, so that the sludge biomass mixture after pyrolysis enters the next layer of swinging caterpillar tracks (3); the crawler frame (301) and the crawler (302) are driven by the crawler swinging shaft (304) to swing to perform vibration rolling on the sludge biomass mixture.
7. The vertical internal circulation sequencing batch pyrolysis apparatus of claim 1, wherein the caterpillar drive rod (4) is connected to the drive plate (402) by a drive connection shaft (401); the transmission connecting shaft (401) is arranged on the crawler transmission rod (4), the transmission disc (402) is eccentrically arranged on the transmission connecting shaft (401), and the center of the other side of the transmission disc (402) is connected with the crawler transmission shaft (303); the transmission of the crawler transmission rod (4) is controlled by the transmission driver (5), the transmission driver (5) drives the vertically arranged crawler transmission rod (4) to do circular motion around the transmission wheel (503), the crawler transmission rod (4) drives the transmission connecting shaft (401) and the transmission disc (402) to eccentrically rotate, and the crawler transmission shaft (303) rotates at a fixed point, so that the swinging crawler (3) transmits the sludge and biomass mixture.
8. The vertical internal circulation sequencing batch pyrolysis apparatus of claim 1, 3 or 7, wherein the conveyor driver (5) comprises a main conveyor (501), a conveyor belt (502), a conveyor wheel (503) and a conveyor button (504); the transmission belt (502) is arranged between the transmission main machine (501) and the transmission wheel (503), and the transmission main machine (501) drives the transmission wheel (503) to rotate through the transmission belt (502); the transmission button (504) is arranged on the upper edge of the transmission wheel (503), and the crawler transmission rod (4) is arranged on the transmission button (504); the transmission wheel (503) drives the transmission button (504) and the crawler transmission rod (4) to move.
9. The vertical internal circulation sequencing batch pyrolysis apparatus of claim 1, 3 or 5, wherein the caterpillar oscillating rod (7) comprises an eccentric transmission disc (701) and an eccentric transmission connection head (702); the eccentric transmission disc (701) is installed on the swinging rod, the eccentric transmission connector (702) is installed on the eccentric transmission disc (701), and the other end of the eccentric transmission connector (702) is connected with the crawler swinging shaft (304); the crawler oscillating rod (7) is driven to rotate by an oscillating driver (8); the crawler swinging rod (7) drives the eccentric transmission disc (701) to rotate through clockwise and anticlockwise back-and-forth rotation of 270 degrees, so that the eccentric transmission connector (702) and the crawler swinging shaft (304) are driven to move back and forth, and the swinging crawler (3) is driven to swing.
10. The vertical internal circulation sequencing batch pyrolysis apparatus of claim 11, wherein the eccentric drive connection (702) comprises a fixed connection (703), a connection bearing (704) and a central connection shaft (705); the fixed connector (703) is movably connected with the connecting bearing (704) through a central connecting shaft (705); the fixed connector (703) is movably connected with the crawler belt swinging shaft (304); the outer ring of the connecting bearing (704) can rotate; the track swinging rod (7) rotates clockwise and anticlockwise to drive the connecting bearing (704) to rotate and the fixed connector (703) to move back and forth, and further drive the track swinging shaft (304) to move back and forth.
11. The vertical internal circulation sequencing batch pyrolysis apparatus of claim 1, wherein the oscillating drive (8) comprises a main drive shaft (801), a drive belt (802) and a secondary drive shaft (803); the transmission belt (802) is arranged between the transmission main shaft (801) and the transmission auxiliary shaft (803), and the transmission main shaft (801) drives the transmission auxiliary shaft (803) to rotate through the transmission belt (802); the crawler belt swinging rod (7) is arranged on the transmission auxiliary shaft (803), and the crawler belt swinging rod (7) is driven to rotate through the transmission auxiliary shaft (803).
12. The vertical internal circulation sequencing batch pyrolysis apparatus of claim 1 or 7, wherein the outfeed (10) comprises an outfeed bin (1001), an outfeed upper shutter (1002) and an outfeed lower flap (1003); the top of the discharging bin (1001) is provided with a discharging upper gate plate (1002); and a discharging lower turning plate (1003) is arranged at the bottom of the discharging bin (1001).
13. The method for co-pyrolysis of sludge doped with burning biomass by using the equipment of any one of claims 1 to 12 is characterized in that the equipment is in an anoxic state, a dried sludge biomass mixture is placed into vertical sludge oscillation carbonization equipment and is swung from top to bottom through the swinging crawler belts (3) of each layer, and meanwhile pyrolysis is carried out by adopting a pyrolysis method that the swinging crawler belts (3) in the equipment have gradient temperature change; the temperature difference of two adjacent layers of swing tracks (3) in the equipment is 10-50 ℃, and the temperature of the upper layer is lower than that of the lower layer.
14. The method of claim 13, comprising the steps of:
1) preheating a furnace body (2) of a vertical sludge carbonization device before carbonization, then opening and closing and adjusting power of a combustion machine (8) by a central control system (13) according to the temperature in the carbonization process, heating each layer of combustion machine (8) simultaneously, monitoring the temperature of each layer in real time by a temperature sensor (11), controlling the temperature of the lowest layer as a target carbonization temperature, and gradually increasing by 10-50 ℃ layer by layer from bottom to top to form a temperature gradient in the furnace; the preheating specifically comprises the following steps: preheating for 20-80 min at 300-600 ℃;
2) after the furnace body (2) of the vertical sludge carbonization equipment reaches the temperature required by carbonization, the feeding upper turning plate (102) is opened, the feeding lower gate plate (103) is closed, and the dried sludge biomass mixture enters the feeding bin (101) for temporary storage; then, the feeding upper turning plate (102) is closed, the feeding lower gate plate (103) is opened, and the dried sludge biomass mixture enters the carbonization furnace cavity (201) from the feeding hole (1); at the moment, the dried sludge biomass mixture is received by the swing crawler belt (3) at the topmost layer; in the sludge biomass mixture, the biomass accounts for 1-2% of the total weight of the mixture; the biomass comprises more than one of leaves, tea leaves, sawdust, bagasse or water hyacinth; the topmost layer of sludge is pyrolyzed at the lowest temperature and falls into the next layer, the next layer at higher temperature enables the sludge to be heated continuously, and at the moment, organic matters in the sludge are cracked to generate a part of heat to compensate the temperature of the next layer;
3) the transmission driver (5) drives the transmission connecting shaft (401) and the transmission disc (402) to enable the swinging crawler (3) to start transmission; the conveying driver (8) drives the crawler oscillating rod (7), the eccentric transmission disc (701) and the eccentric transmission connector (702) to enable the oscillating crawler (3) to start oscillating back and forth, and the sludge biomass mixture on the oscillating crawler (3) oscillates and is uniformly heated and carbonized;
4) the conveying time of the topmost layer of the swinging crawler (3) is controlled to be 5-12 min, the sludge biomass mixture on the swinging crawler (3) is heated for 5-12 min and gradually falls down and is received by the second layer of the swinging crawler (3), and the second layer of the swinging crawler (3) is oscillated and carbonized; then, the feeding upper turning plate (102) is opened, the feeding lower turning plate (103) is closed, and the dried sludge biomass mixture enters the feeding bin (101) for temporary storage; then the feeding upper turning plate (102) is closed, the feeding lower flashboard (103) is opened, the dried sludge biomass mixture enters the carbonization furnace cavity (201) from the feeding hole (1), and the dried sludge biomass mixture is received by the topmost swing crawler (3);
5) in the feeding process, the swinging crawler (3) is driven by a swinging driver (8), a crawler swinging rod (7), an eccentric transmission disc (701) and an eccentric transmission connector (702) to continuously oscillate;
6) during the heating period of 5-20 min, the sludge biomass mixture on the topmost layer and the second layer of swing track (3) gradually falls into the third layer of swing track (3), and the sludge biomass mixture on the topmost layer of swing track (3) gradually falls into the second layer of swing track (3); then, the feeding upper turning plate (102) is opened, the feeding lower turning plate (103) is closed, and the dried sludge biomass mixture enters the feeding bin (121) for temporary storage; then the feeding upper turning plate (102) is closed, the feeding lower flashboard (103) is opened, the dried sludge biomass mixture enters the carbonization furnace cavity (201) from the feeding hole (1), and the dried sludge biomass mixture is received by the topmost swing crawler (3); in the same way, until all the swinging crawler belts (3) receive a proper amount of dry sludge biomass mixture; the feeding of the feeding hole (1) and the overturning oscillation of the swinging crawler (3) are automatically controlled by a central control system (13);
7) after 4-16 layers of swing tracks (3), the lowest layer of swing track (3) sends the carbonized composite biochar into a composite biochar collecting cavity (205); the total carbonization time of the sludge biomass mixture is controlled to be 1-2 h;
8) the discharging upper flashboard (1002) is opened, and the carbonized composite biochar enters the discharging bin (1001) for temporary storage; the upper discharging flashboard (1002) is closed, the lower discharging flashboard (1003) is opened, and the composite biochar temporarily stored in the discharging bin is discharged out of the carbonization furnace cavity (201) for further utilization.
15. The method of claim 13 or 14, wherein the sludge is one or more of industrial sludge or domestic sludge.
16. The method of claim 15, wherein the industrial sludge comprises one or more of printing sludge, wash water sludge, food industry sludge, paper sludge, high-consistency wastewater treatment sludge, electroplating sludge, or landfill leachate sludge.
17. The method for sludge treatment by using the thermal cycle accurate temperature control gradient carbonization device according to claim 15, wherein the domestic sludge comprises one or more of domestic sewage treatment plant sludge or river dredging sludge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110232884.3A CN112759213A (en) | 2021-03-03 | 2021-03-03 | Vertical internal circulation sequencing batch pyrolysis equipment and method for sludge treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110232884.3A CN112759213A (en) | 2021-03-03 | 2021-03-03 | Vertical internal circulation sequencing batch pyrolysis equipment and method for sludge treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112759213A true CN112759213A (en) | 2021-05-07 |
Family
ID=75690976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110232884.3A Pending CN112759213A (en) | 2021-03-03 | 2021-03-03 | Vertical internal circulation sequencing batch pyrolysis equipment and method for sludge treatment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112759213A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006063179A (en) * | 2004-08-26 | 2006-03-09 | Tomoe Engineering Co Ltd | Carbonizing apparatus |
| KR100684585B1 (en) * | 2006-09-26 | 2007-02-22 | 안길현 | A deposited industrial waste thermodecomposition apparatus and decomposition method using thereof |
| KR101218127B1 (en) * | 2011-12-09 | 2013-01-03 | (주)이렛하이테크 | Manufacture method of activation matter using sewage sludges |
| CN203173945U (en) * | 2013-04-02 | 2013-09-04 | 湖北博实城乡环境能源工程有限公司 | Sludge high-temperature carbonization furnace |
| CN107227165A (en) * | 2017-06-15 | 2017-10-03 | 西北大学 | A kind of vertical heater of dry thermal cracking integration |
| CN108911457A (en) * | 2018-08-10 | 2018-11-30 | 北京海斯顿水处理设备有限公司 | A kind of indirect heat transmission type pyrolyzing sludge carbonizing plant and pyrolyzing sludge carbonization system |
| CN111875208A (en) * | 2020-07-02 | 2020-11-03 | 舟山麦哲伦环保科技有限公司 | Production method and production system for extracting oil in oil sludge |
| CN112340950A (en) * | 2020-10-14 | 2021-02-09 | 享教享学(大连)教育科技有限责任公司 | Direct contact heat exchange type sludge combustion furnace |
| CN215250328U (en) * | 2021-03-03 | 2021-12-21 | 博仕燊环保科技(广州)有限公司 | Vertical internal circulation sequencing batch pyrolysis equipment |
-
2021
- 2021-03-03 CN CN202110232884.3A patent/CN112759213A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006063179A (en) * | 2004-08-26 | 2006-03-09 | Tomoe Engineering Co Ltd | Carbonizing apparatus |
| KR100684585B1 (en) * | 2006-09-26 | 2007-02-22 | 안길현 | A deposited industrial waste thermodecomposition apparatus and decomposition method using thereof |
| KR101218127B1 (en) * | 2011-12-09 | 2013-01-03 | (주)이렛하이테크 | Manufacture method of activation matter using sewage sludges |
| CN203173945U (en) * | 2013-04-02 | 2013-09-04 | 湖北博实城乡环境能源工程有限公司 | Sludge high-temperature carbonization furnace |
| CN107227165A (en) * | 2017-06-15 | 2017-10-03 | 西北大学 | A kind of vertical heater of dry thermal cracking integration |
| CN108911457A (en) * | 2018-08-10 | 2018-11-30 | 北京海斯顿水处理设备有限公司 | A kind of indirect heat transmission type pyrolyzing sludge carbonizing plant and pyrolyzing sludge carbonization system |
| CN111875208A (en) * | 2020-07-02 | 2020-11-03 | 舟山麦哲伦环保科技有限公司 | Production method and production system for extracting oil in oil sludge |
| CN112340950A (en) * | 2020-10-14 | 2021-02-09 | 享教享学(大连)教育科技有限责任公司 | Direct contact heat exchange type sludge combustion furnace |
| CN215250328U (en) * | 2021-03-03 | 2021-12-21 | 博仕燊环保科技(广州)有限公司 | Vertical internal circulation sequencing batch pyrolysis equipment |
Non-Patent Citations (2)
| Title |
|---|
| 《烟叶制丝工专业知识》编写组: "《烟叶制丝工专业知识》", vol. 1, 31 December 2012, 郑州：河南科学技术出版社, pages: 64 - 65 * |
| 全国勘察设计注册工程师环保专业管理委员会等: "《注册环保工程师 专业考试复习教材（第三版）》", vol. 2, 30 September 2009, 中国环境科学出版社, pages: 178 - 179 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207081009U (en) | A kind of residents in rural community pyrolysis gasification system | |
| CN112939396A (en) | Thermal cycle precise temperature control gradient carbonization equipment and sludge treatment method | |
| KR100557676B1 (en) | Method for carbonizing organic waste and the apparatus therefor | |
| JP3602504B2 (en) | Heat treatment equipment using superheated steam | |
| JP2006274201A (en) | Continuous reduced-pressure drying/carbonizing apparatus | |
| CN102476907A (en) | Equipment and method of high-efficiency high-speed environmentally-friendly energy-saving sludge treatment system | |
| CN112610959B (en) | High-temperature pyrolysis system for household garbage treatment | |
| US20070281268A1 (en) | Continuous Carbonization Processing by Internal Heat Type Self-Substained Combustion System | |
| CN105731754A (en) | Treatment device and method for drying sludge through slag waste heat | |
| CN114308988B (en) | Skid-mounted medical waste isothermal pyrolysis treatment system | |
| KR200380974Y1 (en) | Energy saving type sludge carbonization equipment using regenerative heat exchanger | |
| CN215250328U (en) | Vertical internal circulation sequencing batch pyrolysis equipment | |
| CN215879210U (en) | Device for pyrolyzing fly ash dioxin generated in incineration of household garbage at low temperature by using waste heat of brick kiln | |
| WO2010150412A1 (en) | Organic sludge treatment equipment | |
| JP2005238120A (en) | Vacuum drying/carbonization device | |
| CN110947734B (en) | Method for treating urban and rural solid waste by cracking gasification system | |
| CN112980473A (en) | Spiral drying and carbonization integrated equipment and method for sludge treatment | |
| KR101179523B1 (en) | Manufacture device of activation matter using sewage sludges | |
| CN112759213A (en) | Vertical internal circulation sequencing batch pyrolysis equipment and method for sludge treatment | |
| KR100520347B1 (en) | Energy saving type sludge carbonization equipment using regenerative heat exchanger | |
| KR101398275B1 (en) | Multiple stage drying and carbonizing apparatus of waste material | |
| CN215162377U (en) | Integrative equipment of spiral drying carbonization | |
| CN211946757U (en) | Municipal sludge dewatering, drying and burning treatment system without adding fuel | |
| CN101387472A (en) | Waste drying method and system apparatus thereof | |
| CN203159595U (en) | Zymocyte culture apparatus for household garbage pretreatment |
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 |