CN115253626B - Movable prevents integrated preprocessing device of thermal power plant flue gas of collecting space area coal spontaneous combustion - Google Patents
Movable prevents integrated preprocessing device of thermal power plant flue gas of collecting space area coal spontaneous combustion Download PDFInfo
- Publication number
- CN115253626B CN115253626B CN202210858121.4A CN202210858121A CN115253626B CN 115253626 B CN115253626 B CN 115253626B CN 202210858121 A CN202210858121 A CN 202210858121A CN 115253626 B CN115253626 B CN 115253626B
- Authority
- CN
- China
- Prior art keywords
- gas
- shell
- water separation
- flue gas
- power plant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/60—Simultaneously removing sulfur oxides and nitrogen oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/10—Oxidants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/20—Reductants
- B01D2251/206—Ammonium compounds
- B01D2251/2067—Urea
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention relates to the technical field of goaf fire prevention and extinguishment, and discloses a movable smoke integrated pretreatment device of a thermal power plant for preventing spontaneous combustion of goaf coal, wherein a shell is arranged on a base, an integrated electric control device is arranged in the upper space of the left side in the shell, an absorption tank is arranged in the lower space of the left side in the shell, an air inlet is arranged on the left side wall of the shell, a gas-liquid check valve is arranged on the air inlet, the air inlet is positioned below the liquid level in the absorption tank, the middle lower space in the shell is used as a gas-water separation area, the left side lower space is communicated with the middle lower space through a gas-liquid port, a gas-water separation device is arranged in the gas-water separation area, the top of the gas-water separation device is positioned in the middle upper space in the shell, a gas outlet of the gas-water separation device is connected with an inlet of a cold dryer through a pipeline I, an outlet of the cold dryer is connected with a compressor through a pipeline I, an outlet of the compressor is connected with the top of a gas storage tank, an air outlet pipe is arranged on the lower part of the gas storage tank, and the air outlet pipe extends out from the lower part of the right side wall of the shell.
Description
Technical Field
The invention relates to the technical field of goaf fire prevention and extinguishment, in particular to a movable smoke integrated pretreatment device for a thermal power plant, which can prevent spontaneous combustion of goaf coal.
Background
Coal is the main energy source of China and is the dominant main energy source of China in a quite long time in the future. In the coal mine distribution of China, the coal mine distribution with spontaneous combustion ignition is wide, and once spontaneous combustion of the coal mine occurs, a large amount of toxic and harmful gas generated by combustion directly endangers the life and health of operators, causes serious pollution to the environment, even induces gas and coal dust explosion accidents, the spontaneous combustion of the coal seriously influences the safe production of the coal mine, and serious resource economic losses are caused for enterprises and society.
The coal fire can be effectively prevented and controlled by directly injecting the power plant flue gas into the goaf, and researches show that the power plant flue gas not only can inert the goaf to prevent coal spontaneous combustion, but also is more effective than nitrogen injection fire prevention and extinguishment. In the main component of the flue gas of the power plant, N 2 79% of O 2 4.5% of CO 2 16.5% and a small amount of SO 2 、NO 2 Air pollutants such as CO and the like have low oxygen content, and are compared with the traditional nitrogen injection and CO preparation 2 Compared with the technology, the method has the advantage that the spontaneous combustion of coal can be more effectively inhibited by directly injecting the flue gas of the power plant into the goaf of the coal mine.
In addition, the injection of the power plant flue gas into the goaf is also an effective means for energy conservation and emission reduction, and experiments prove that each ton of coal at normal temperature and normal pressure can seal CO in the flue gas 2 About 1.2m 3 ，N 2 About 0.26m 3 Wherein SO in the flue gas 2 And NO 2 Can be totally sealed by the coal sample. Injecting the flue gas of the power plant into the goaf, and utilizing the residual coal to carry out CO treatment on the flue gas 2 And the harmful gases are sealed, so that the unification of disaster management, energy conservation and emission reduction is realized, and the method is an effective way for solving pollution and saving energy.
In actual production, the main component N in the exhaust fume of the thermal power plant 2 、CO 2 All are good inerting fire preventing and extinguishing materials for inhibiting spontaneous combustion of coal, but sulfides, water vapor and the like in the flue gas can lead to the pH value of the flue gas condensate to be reduced, and the minimum pH value reaches 1-2, however, if the flue gas is not pretreated and directly discharged into a goaf, stronger corrosion can be generated on a flue, goaf equipment is damaged, the service life of the flue equipment is reduced, and therefore untreated flue gas does not meet the condition of being directly discharged into the pit and the discharged flue gas needs to be pretreated first. The existing flue gas pretreatment device has large equipment, is inconvenient to move, has high temperature, high humidity and unstable gas transportation of air input underground, cannot be suitable for complex working environments of goafs, and needs large-scale modification and large-scale manpower, material resources and financial resources consumption, has high cost and is suitable for the complex working environments of goafs,The consumption is large. In order to solve the problems, the existing thermal power plant flue gas integrated pretreatment device for preventing spontaneous combustion of goaf coal needs to be improved.
Disclosure of Invention
The invention provides a movable thermal power plant flue gas integrated pretreatment device for preventing spontaneous combustion of goaf coal, which aims to solve a series of problems that the conventional thermal power plant flue gas condensate is low in pH value, and the conventional pretreatment device is large in equipment, inconvenient to move, not applicable to complex working environments of the goaf, and the like, and can cause corrosion of a transportation pipeline and damage of equipment when the conventional thermal power plant flue gas condensate is directly discharged to the goaf.
The invention is realized by adopting the following technology:
the invention provides a movable thermal power plant flue gas integrated pretreatment device for preventing spontaneous combustion of goaf coal, which is characterized in that a shell is fixedly arranged on a base, an integrated electric control device is arranged in an upper left space in the shell, an absorption tank is arranged in a lower left space in the shell, an air inlet is arranged on the left side wall of the shell, a gas-liquid check valve is arranged on the air inlet, the air inlet is positioned below the liquid level in the absorption tank, a lower middle space in the shell is used as a gas-water separation area, the lower left space and the lower middle space are communicated through a gas-liquid port, a drain outlet is arranged at the bottom of the gas-water separation area, a drain outlet is arranged on the side wall of the gas-water separation area, a drain pipe is arranged inwards, a gas-water separation device is arranged in the gas-water separation area, an opening at the bottom of the gas-water separation device is higher than the drain outlet, the top of the gas-water separation device is positioned in the upper middle space in the shell, a gas outlet of the gas separation device is connected with an inlet of a cold dryer through a pipeline I, an outlet of the cold dryer is connected with a compressor through a pipeline, an outlet of the compressor is connected with the top of a gas storage tank, the compressor and the gas storage tank is positioned in the right space in the shell, a gas outlet pipe is arranged at the lower part of the shell, a drain pipe is arranged on the right side of the gas storage tank, a lower side of the shell is provided with a drain is provided, and is provided from the side of the gas tank, and is arranged from the lower side of the machine from the side of the machine and a lower side of the machine from the shell to the shell, and a lower side of the machine is provided from the machine from the a lower side of the machine from the shell to the machine to the a lower side of the machine from a casing.
When in implementation, the invention designs the movable smoke integrated pretreatment device for the thermal power plant, which is used for preventing spontaneous combustion of goaf coal, wherein the base is grounded, the base is fixedly provided with the shell, the upper space at the left side in the shell is provided with the integrated electric control device, the integrated electric control device comprises a voltage stabilizer, an electric element in the shell and a power supply device, the integrated electric control device is provided with a first cooling fan, the shell at the corresponding position is provided with a first cooling port, the first cooling port is provided with a dustproof net, a power line of the integrated electric control device penetrates out of the shell, the lower space at the left side in the shell is provided with an absorption tank, the left side wall of the shell is provided with an air inlet, the air inlet is provided with a gas-liquid check valve, the air inlet is positioned below the liquid level in the absorption tank, the absorption tank is made of glass fiber reinforced plastics material, the tank is urea and potassium permanganate composite absorption liquid, the middle lower space in the shell is used as a gas-water separation zone, the left lower space is communicated with the middle lower space through a gas-liquid port, an observation port is arranged on the front surface of the shell positioned in the gas-water separation zone and used for observing the height of the liquid level in the gas-water separation zone, a drain outlet is arranged at the bottom of the gas-water separation zone, a drain pipe extends inwards from the side wall of the gas-water separation zone and is used for extracting separated liquid, the free end of the drain pipe is higher than the bottom of the space and avoids gas from escaping from the drain outlet, a gas-water separation device is arranged in the gas-water separation zone, the bottom of the gas-water separation device is provided with a gas inlet, the bottom opening of the gas-water separation device is higher than the drain outlet and avoids the entry of liquid level too high liquid from the gas inlet of the gas-water separation device, a foldback plate is arranged on the surface of the gas-water separation device, the top of the gas-water separation device is positioned in the middle upper space in the shell, the gas outlet of the gas-water separation device is connected with the inlet of the cold dryer through a pipeline I, the cold dryer is positioned in the upper space in the middle, a wet temperature transmitter is installed on the pipeline I, a display window is formed in a shell at the corresponding position, a second cooling fan is arranged on the cold dryer, a second cooling port is formed in the shell at the corresponding position, a dust screen is arranged on the second cooling port, the outlet of the cold dryer is connected with the compressor through the pipeline, a third cooling fan is arranged on the compressor, a third cooling port is formed in the shell at the corresponding position, the dust screen is arranged on the third cooling port, the compressor and the gas storage tank are positioned in the right space in the shell, the outlet of the compressor is connected with the top of the gas storage tank, a gas outlet pipe is arranged at the lower part of the gas storage tank, a pressure regulator is installed on the gas outlet pipe, and the gas outlet pipe extends out from the lower part of the right side wall of the shell, and a series of steps of deacidification, gas-water separation, cooling, drying, compression pressure stabilization and storage are completed for the flue gas injected into the goaf; the four corners of the machine shell are respectively provided with supporting angle blocks, a cross beam is fixed between the two supporting angle blocks, the outer middle parts of the left side surface and the right side surface of the machine shell are symmetrically fixed with supporting plates, each side supporting plate is vertically provided with a cylinder through a cylinder seat, the supporting plates are fixedly provided with cylinder seats through bolts, the cylinder seats are connected with the cylinder body of the cylinder through pin shafts, piston rods of the cylinders are hinged with the upper ends of the two moving mechanism girders together, the two moving mechanism girders are symmetrically arranged in the supporting plates, universal wheels are fixed at the tail ends of the two moving mechanism girders respectively through mounting plates, the middle parts of the two moving mechanism girders are respectively hinged with a moving mechanism auxiliary beam, the two moving mechanism auxiliary beams are respectively hinged at the two ends of a rail fixing device, the middle parts of the rail fixing device are arranged on a fixed beam through positioning shafts, the fixed beam is arranged on the machine shell, limit buckles are respectively arranged above and below the rail fixing device, and the moving mechanism girders corresponding to the left side surface and the right side surface of the machine shell are correspondingly connected through connecting rods. When the compressed air storage device is used, a power supply of an integrated electrical control device communicated with the upper space on the left side is connected with equipment in a shell, an air inlet is connected with untreated flue gas from a thermal power plant, the flue gas enters an absorption tank, urea and potassium permanganate composite absorption liquid in the tank are used for absorbing the flue gas, the absorbed flue gas enters a gas-water separation area from the upper part of the absorption tank through a gas-liquid through hole, liquid is condensed on a turning-back plate and drops on the bottom of a middle lower space, the water seal is carried out on a drain outlet by the original liquid, the gas enters from an opening at the bottom of the gas-water separation device, the liquid level is observed through an observation hole, the water seal liquid level is ensured to be lower than the opening at the bottom of the gas-water separation device, so that the height of the drain outlet is not higher than the opening at the bottom of the gas-water separation device, the condensed water is ensured not to enter the gas-water separation device, the cold dry area formed by a cold dry machine and a wet temperature transmitter through a pipeline I after passing through the gas-water separation device, the temperature transmitter monitors the outlet gas flow in the cold dry area, the temperature and the humidity of the flue gas is observed in real time, the display window value is arranged on the shell, the cold dry machine is used for further cooling and drying the pre-treated gas, the compressed gas is discharged from the air outlet pipe is compressed to the air storage device, the compressed air storage tank is discharged from the air storage device, the compressed air storage tank is discharged to the air storage tank, the compressed air storage device is discharged from the air storage tank is discharged, and the compressed air storage device is discharged to the air storage device is discharged from the air storage device when the compressed air storage device is required to be discharged to be compressed; when the gas storage and the gas release are carried out, the base supports the box body, when the gas storage and the gas release are carried out, the piston rod of the gas cylinder is upwards retracted into the gas cylinder, the upper ends of the two moving mechanism main beams move upwards along with the piston rod, the hinge parts of the moving mechanism auxiliary beams and the moving mechanism main beams also move upwards along with the piston rod, the two moving mechanism auxiliary beams and the hinge ends of the rail fixing device rotate up and down, the rail fixing device rotates along the center to pull the two moving mechanism main beams to be close to each other, the moving mechanism main beams rotate inwards by taking the top point as an axis according to an arc track, the included angle between the two moving mechanism main beams is reduced, the universal wheels support the machine body, and the rail fixing device is fixed by a limit buckle when the gas storage and the gas release are at a proper height; after the device is moved to a designated position, the rail fixing device fixed by the limiting buckle is opened, the piston rod of the cylinder extends outwards from the cylinder body, the upper ends of the two moving mechanism main beams move downwards along with the piston rod, the hinge part of the moving mechanism auxiliary beam and the moving mechanism main beam also moves downwards along with the piston rod, the two moving mechanism auxiliary beams rotate to be horizontal, the rail fixing device rotates to be horizontal along the center, the two moving mechanism main beams are pushed to be mutually far away, the moving mechanism main beams are mutually far away according to an arc track by taking the top point as an axis, the included angle between the two moving mechanism main beams is enlarged, and the universal wheel is separated from the ground.
Compared with the prior art, the invention has the following beneficial effects:
the invention designs a movable thermal power plant flue gas integrated pretreatment device for preventing spontaneous combustion of goaf coal, which is capable of directly discharging natural flue gas in the goaf by treating directly discharged flue gas of a thermal power plant to meet the condition of suppressing spontaneous combustion of coal in the goaf. The method has the advantages that the waste gas is treated by the urea wet method and potassium permanganate is combined with desulfurization and denitrification, carbon dioxide gas which can be adsorbed by residual coal in the goaf is reserved to a large extent, the pH value of the flue gas is reduced by desulfurization and denitrification, the corrosion of acid gas to a pipeline is avoided, the requirement that the flue gas is required to be transported and injected into the underground is considered, the requirement of the gas discharged into the underground is low-temperature drying and stable in air flow is met, the shell design meets the miniaturization requirement, the base and the moving mechanism are arranged, the bottom of the equipment is supported by the base when the equipment is placed and operated, when the equipment is required to be carried, the cylinder is started, the piston rod of the cylinder is retracted to pull the girder to move upwards, and the girder moves downwards in an arc track due to the arrangement of the rail fixing device, the universal casters support the equipment, so that the equipment is pushed and pulled and carried conveniently, the equipment is convenient to use, the equipment is convenient to set, flexible to move, the equipment is convenient to install, the existing goaf line is not required to be changed on a large scale, purification, compression, cooling and drying are integrated, the requirement of the flue gas discharged into the goaf is met, the stability of the flue gas treatment is ensured, the underground exhaust safety is ensured, and the safety of the underground is realized, and the safety of the energy conservation and emission is guaranteed, and the energy saving disaster is effectively solved.
Drawings
Fig. 1 shows a schematic view of the internal structure of the present invention.
Fig. 2 shows a side view of the invention in a laid-down condition.
Fig. 3 shows a front view of the present invention.
Fig. 4 shows a side view of the invention in a mobile state. .
In the figure: a-left upper space; b-left lower space; c-an intermediate lower space; d-an intermediate upper space; e-right space; 1-a shell; 2-air inlet; 3-an integrated electrical control device; 4-a first heat dissipation port; 5-a first heat radiation fan; 6-a gas-liquid check valve; 7-an absorption tank; 8-a cold dryer; 9-a temperature and humidity transmitter; 10-a second heat dissipation port; 11-a second radiator fan; 12-a gas-water separation device; 13-viewing port; 14-a sewage outlet; 15-a water outlet; a 16-compressor; 17-a third radiator fan; 18-a third heat sink; 19-an air storage tank; 20-voltage regulator; 21-a support plate; 22-a moving mechanism girder; 23-mounting plates; 24-universal wheels; 25-a moving mechanism auxiliary beam; 26-rail fixing device; 27-a cylinder block; 28-a cross beam; 29-a piston rod; 30-positioning a shaft; 31-supporting corner blocks; 32-limiting buckles; 33-a base; 34-line I; 35-connecting rod; 36-fixing the beam; 37-an air outlet pipe; 38-a cylinder; 39-gas-liquid port.
Detailed Description
Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
A movable thermal power plant flue gas integrated pretreatment device for preventing spontaneous combustion of goaf coal is shown in fig. 2: the base 33 is grounded, the chassis 1 is fixedly installed on the chassis 33, as shown in fig. 1, an integrated electric control device 3 is arranged in the upper space A at the left side in the chassis 1, the integrated electric control device 3 comprises a voltage stabilizer, electric elements and a power supply device in the chassis 1, the integrated electric control device 3 is formed into an electric control area in a concentrated mode, in order to avoid heating and burning out the control area of the electric elements, a first cooling fan 5 is arranged on the outer surface of the integrated electric control device 3 towards the outer side of the chassis, a first cooling opening 4 is arranged on the chassis 1 at a corresponding position, a dust screen is arranged on the first cooling opening 4, a power line of the integrated electric control device 3 penetrates out of the chassis 1 from the upper part of the chassis 1, a lower space B at the left side in the chassis 1 is used as an absorption area, an absorption tank 7 is arranged in the absorption area, the direct exhaust flue gas of a thermal power plant is subjected to desulfurization and denitrification to reduce the pH value in the absorption area, an air inlet 2 is arranged on the left side wall of the chassis 1 in the absorption area, the air inlet 2 is provided with a gas-liquid check valve 6 for preventing the absorption liquid in the tank from flowing backwards along a pipeline, the air inlet 2 is positioned below the liquid level in the absorption tank 7, the absorption tank 7 is made of glass fiber reinforced plastic, urea and potassium permanganate composite absorption liquid is arranged in the tank, a middle lower space C in the shell 1 is used as a gas-water separation area, a left lower space B is communicated with the middle lower space C through a gas-liquid through hole 39, the front of the shell 1 positioned in the gas-water separation area is provided with an observation hole 13, the bottom of the gas-water separation area is provided with a drain hole 14, the side wall of the gas-water separation area is provided with a drain hole 15, the drain hole 15 extends inwards to be used for extracting the separated liquid, the free end of the drain pipe is higher than the bottom of the middle lower space C, water which is reserved to form a water seal, the gas is prevented from escaping from the drain hole, the gas-water separation area is internally provided with a gas-water separation device 12, the bottom opening of the gas-water separation device 12 is higher than the water outlet, so as to prevent excessive liquid from entering the gas-water separation device 12 from the gas inlet of the gas-water separation device 12, a foldback plate is arranged on the surface of the gas-water separation device 12, the condensation area of water in gas is increased, the top of the gas-water separation device 12 is positioned in the middle upper space D in the shell 1, the gas outlet of the gas-water separation device 12 is connected with the inlet of the cold dryer 8 through a pipeline I34, the cold dryer 8 is positioned in the middle upper space D, the middle upper space D is used as a cold dryer area for cooling and drying, a temperature and humidity transmitter 9 is arranged on the pipeline I34, a display window is arranged on the shell 1 at the corresponding position, the air flow in the cold dryer area is monitored through the display window, the temperature and humidity of flue gas are observed in real time, a second cooling fan 11 is arranged on the side of the cold dryer 8 facing the outside of the shell, the shell 1 at the corresponding position is provided with a second heat radiation port 10, the second heat radiation port 10 is provided with a dust screen, the outlet of the cold dryer 8 is connected with the compressor 16 through a pipeline, the flue gas enters a gas compression collecting area to be compressed and stored, the compressor 16 is provided with a third heat radiation fan 17, the shell 1 at the corresponding position is provided with a third heat radiation port 18, the third heat radiation port 18 is provided with the dust screen, the compressor 16 and the air storage tank 19 are positioned in a right side space E in the shell 1, the outlet of the compressor 16 is connected with the top of the air storage tank 19, the lower part of the air storage tank 19 is provided with an air outlet pipe 37, the air outlet pipe 37 is provided with a pressure regulator 20 to control the release pressure of the flue gas, the air outlet pipe 37 extends out from the lower part of the right side wall of the shell 1, and a series of steps of deacidification, gas-water separation, cooling, drying, compression pressure stabilization and storage are completed on the flue gas injected into a goaf;
as shown in fig. 2 and 3, support angle blocks 31 are respectively arranged at four corners of the casing 1, a cross beam 28 is fixed between the two support angle blocks 31, the casing 1 is surrounded by the support angle blocks 31 and the cross beam 28, deformation and cracking of the casing 1 due to the weight of the whole casing are prevented, as shown in fig. 2, support plates 21 are symmetrically fixed at the outer middle parts of the left side surface and the right side surface of the casing 1, an air cylinder is vertically arranged on each side support plate 21 through an air cylinder seat 27, the air cylinder is vertically downward, the support plates 21 are fixedly arranged on the air cylinder seats 27 through bolts, the air cylinder seats 27 are connected with a cylinder body 38 of the air cylinder through pin shafts, a piston rod 29 of the air cylinder is jointly hinged with the upper ends of two moving mechanism girders 22, the two moving mechanism girders 22 are symmetrically arranged on the support plates 21, universal wheels 24 are respectively fixed at the tail ends of the two moving mechanism girders 22 through mounting plates 23, the middle parts of the two moving mechanism girders 25 are respectively hinged at the two ends of a rail fixing device 26, the middle parts of the rail fixing device 26 are arranged on the fixing beams 36 through positioning shafts 30, the fixing beams 36 are arranged on the casing 1, the upper side surfaces and the left side surfaces and the right side surfaces of the casing 1 are respectively arranged on the opposite sides of the two side surfaces of the main girders 22, namely, the two moving mechanism girders are connected with the main girders 22 in the opposite directions of the left side surfaces of the casing 1, and the main girders are arranged in the directions of the two side surfaces of the main girders and the main girders are corresponding to the two moving mechanism 22, and the main frames are arranged in the directions of the main machine frame 1, and are opposite directions, and the main frames and are arranged.
When in use, the power supply of the integrated electric control device 3 is communicated, all devices in the shell 1 are communicated, the air inlet 2 is connected with untreated flue gas from a thermal power plant, the flue gas enters the absorption tank 7, urea and potassium permanganate compound absorption liquid in the tank adsorbs the flue gas, the adsorbed flue gas enters the gas-water separation area from the upper part of the absorption tank 7 through the gas-liquid through hole 39, liquid is condensed on the foldback plate, water drops are accumulated and drop on the bottom of the middle lower space C, the original liquid at the bottom of the middle lower space C seals the sewage outlet 14, the air is prevented from escaping from the sewage outlet 14, the air enters from the opening at the bottom of the gas-water separation device 12, the liquid level is always lower than the air inlet at the bottom of the gas-water separation device 12 through the observation hole 13, the condensed water is ensured not to enter the gas-water separation device 12, when the liquid level is too high, the water pump is connected at the water outlet 15, the liquid is pumped out, the liquid level is always kept below the drain pipe and below the bottom opening of the gas-water separation device 12, in order to ensure that the water level is not higher than the bottom opening of the gas-water separation device 12, the water outlet 15 is designed to be lower than the bottom opening of the gas-water separation device 12, the water enters a cold drying area formed by a cold dryer 8 and a temperature and humidity transmitter 9 through a pipeline I34 after passing through the water separation device, the temperature and humidity transmitter 9 monitors the outlet airflow in the cold drying area, the temperature and humidity of the flue gas are observed in real time, the flue gas is further cooled and dried by the cold dryer 8 through the display window observation value arranged on the shell 1, the pretreatment of the flue gas is completed, then the flue gas is discharged into a gas compression collecting area, a compressor 16 in the gas compression collecting area compresses the gas and then fills the gas storage tank 19, and when the flue gas is required to be released when the goaf is moved, opening an air outlet pipe 37 at the lower part of the air storage tank 19, regulating the release pressure by the pressure regulator 20, and discharging the treated flue gas from the lower part of the right side wall of the machine shell 1 through the air outlet pipe 37; when gas is stored and discharged, the base 33 supports the box body, as shown in fig. 4: when moving, the piston rod 29 of the air cylinder is retracted upwards into the cylinder body 38, the upper ends of the two moving mechanism main beams 22 move upwards along with the piston rod 29, the hinge part of the moving mechanism auxiliary beam 25 and the moving mechanism main beam 22 also moves upwards along with the piston rod, the hinge ends of the two moving mechanism auxiliary beams 25 and the rail fixing device 26 rotate up and down, the rail fixing device 26 rotates along the center, the two moving mechanism main beams 22 are pulled to be close to each other, the moving mechanism main beams 22 rotate inwards by taking the top point as an axis according to an arc track, the included angle between the two moving mechanism main beams 22 is reduced, the universal wheels 24 support the machine body, and when the machine body is at a proper height, the rail fixing device 26 is fixed by the limit buckles 32; after the device is moved to a designated position, the rail fixing device 26 fixed by the limiting buckle is opened, the piston rod 29 of the air cylinder extends outwards from the cylinder body 38, the upper ends of the two moving mechanism main beams 22 move downwards along with the piston rod 29, the hinge joint of the moving mechanism auxiliary beams 25 and the moving mechanism main beams 22 also move downwards along with the piston rod 29, the two moving mechanism auxiliary beams 25 rotate to be horizontal, the rail fixing device 26 rotates to be horizontal along the center, the two moving mechanism main beams 22 are pushed to be away from each other, the moving mechanism main beams 22 are away from each other by taking the top point as an axis according to an arc track, the included angle between the two moving mechanism main beams 22 is increased, and the universal wheel 24 leaves the ground.
The absorption principle of the urea and potassium permanganate composite absorption liquid in the absorption tank is as follows:
for SO 2 Is absorbed by: urea aqueous solution at normal temperature for SO 2 The absorption mode of (a) is mainly physical absorption. Potassium permanganate vs SO 2 The absorption mode of (2) is chemical absorption, and the reaction formula is as follows:
5SO 2 +2KMnO 4 +2H 2 O=K 2 SO 4 +2MnSO 4 +2H 2 SO 4
absorption of NO: the reaction of oxidizing NO by potassium permanganate is carried out in two steps, wherein the first step is that the potassium permanganate oxidizes NO into NO 2 The ionic reaction equation is:
2H⁺+2MnO 4 + +3NO=3NO 2 +2MnO 2 +H 2 O
the second step is that the generated nitrogen dioxide reacts with water to generate nitric acid, and the reaction formula is as follows:
3NO 2 +H 2 O=HNO 3 +2NO
the total reaction equation is:
KMnO 4 +NO=KNO 3 +MnO 2
the absorption tank further absorbs and processes the nitrites and sulfides led out from the absorption tower, and simultaneously effectively retains inert gas CO in the flue gas 2 。
The scope of the present invention is not limited to the above embodiments, and various modifications and alterations of the present invention will become apparent to those skilled in the art, and any modifications, improvements and equivalents within the spirit and principle of the present invention are intended to be included in the scope of the present invention.
Claims (8)
1. The utility model provides a thermal power plant flue gas integrated preprocessing device of movable prevention collecting space area coal spontaneous combustion, includes base (33), fixed mounting has casing (1), its characterized in that on base (33): an integrated electrical control device (3) is arranged in the upper left space (A) in the shell (1), an absorption tank (7) is arranged in the lower left space (B) in the shell (1), an air inlet (2) is formed in the left side wall of the shell (1), a gas-liquid check valve (6) is arranged on the air inlet (2), the air inlet (2) is positioned below the liquid level in the absorption tank (7), the lower middle space (C) in the shell (1) is used as a gas-water separation area, the lower left space (B) is communicated with the lower middle space (C) through a gas-liquid through hole (39), a drain outlet (14) is formed in the bottom of the gas-water separation area, a drain outlet (15) is formed in the side wall of the gas-water separation area, a drain pipe (15) is arranged inwards, a gas-water separation device (12) is arranged in the gas-water separation area, the bottom opening of the gas-water separation device (12) is higher than (15), the top of the gas-water separation device (12) is positioned in the upper middle space (D) in the shell (1), the gas-water separation device (12) is connected with a dry air inlet (8) through a dry air compressor (8), the outlet of the compressor (16) is connected with the top of the air storage tank (19), the compressor (16) and the air storage tank (19) are positioned in a right side space (E) in the shell (1), an air outlet pipe (37) is arranged at the lower part of the air storage tank (19), a pressure regulator (20) is arranged on the air outlet pipe (37), and the air outlet pipe (37) extends out of the lower part of the right side wall of the shell (1);
the device is characterized in that support plates (21) are symmetrically fixed in the outer middle parts of the left side surface and the right side surface of the machine shell (1), each side support plate (21) is vertically provided with an air cylinder through an air cylinder seat (27), a piston rod (29) of each air cylinder is hinged to the upper ends of two moving mechanism main beams (22) together, the two moving mechanism main beams (22) are symmetrically arranged on the support plates (21), universal wheels (24) are fixed to the tail ends of the two moving mechanism main beams (22) through mounting plates (23) respectively, one moving mechanism auxiliary beam (25) is hinged to the middle parts of the two moving mechanism main beams (22), the two moving mechanism auxiliary beams (25) are hinged to the two ends of a rail fixing device (26) respectively, the middle parts of the rail fixing device (26) are mounted on a fixed beam (36) through positioning shafts (30), the fixed beam (36) is mounted on the machine shell (1), and limit buckles (32) are mounted below the rail fixing device (26) respectively.
2. The movable thermal power plant flue gas integrated pretreatment device for preventing spontaneous combustion of goaf coal according to claim 1, wherein the pretreatment device comprises: a temperature and humidity transmitter (9) is arranged on the pipeline I (34), and a display window is arranged on the casing (1) at the corresponding position.
3. The movable thermal power plant flue gas integrated pretreatment device for preventing spontaneous combustion of goaf coal according to claim 1, wherein the pretreatment device comprises: the power line of the integrated electrical control device (3) penetrates out of the machine shell (1); an observation port (13) is arranged on the front surface of the shell in the gas-water separation area; the integrated electrical control device (3) is provided with a first cooling fan (5), and a first cooling port (4) is formed in the casing (1) at the corresponding position; a second cooling fan (11) is arranged on the cooling dryer (8), and a second cooling opening (10) is formed in the casing (1) at the corresponding position; a third cooling fan (17) is arranged on the compressor (16), and a third cooling port (18) is formed in the casing (1) at the corresponding position; and dustproof nets are arranged on the first radiating opening (4), the second radiating opening (10) and the third radiating opening (18).
4. The movable thermal power plant flue gas integrated pretreatment device for preventing spontaneous combustion of goaf coal according to claim 1, wherein the pretreatment device comprises: support angle blocks (31) are respectively arranged at four corners of the shell (1), and a cross beam (28) is fixed between the two support angle blocks (31).
5. The movable thermal power plant flue gas integrated pretreatment device for preventing spontaneous combustion of goaf coal according to claim 1, wherein the pretreatment device comprises: the surface of the gas-water separation device (12) is provided with a turning plate.
6. The movable thermal power plant flue gas integrated pretreatment device for preventing spontaneous combustion of goaf coal according to claim 1, wherein the pretreatment device comprises: the absorption tank (7) is made of glass fiber reinforced plastic, and urea and potassium permanganate composite absorption liquid is arranged in the tank.
7. The movable thermal power plant flue gas integrated pretreatment device for preventing spontaneous combustion of goaf coal according to claim 1, wherein the pretreatment device comprises: the main beams (22) of the moving mechanism, which are positioned on the left side surface and the right side surface of the shell (1), are correspondingly connected through connecting rods (35).
8. The movable thermal power plant flue gas integrated pretreatment device for preventing spontaneous combustion of goaf coal according to claim 1, wherein the pretreatment device comprises: the supporting plate (21) is fixedly provided with the cylinder seat (27) through bolts, and the cylinder seat (27) is connected with a cylinder body (38) of the cylinder through a pin shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210858121.4A CN115253626B (en) | 2022-07-21 | 2022-07-21 | Movable prevents integrated preprocessing device of thermal power plant flue gas of collecting space area coal spontaneous combustion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210858121.4A CN115253626B (en) | 2022-07-21 | 2022-07-21 | Movable prevents integrated preprocessing device of thermal power plant flue gas of collecting space area coal spontaneous combustion |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115253626A CN115253626A (en) | 2022-11-01 |
| CN115253626B true CN115253626B (en) | 2023-06-16 |
Family
ID=83766266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210858121.4A Active CN115253626B (en) | 2022-07-21 | 2022-07-21 | Movable prevents integrated preprocessing device of thermal power plant flue gas of collecting space area coal spontaneous combustion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115253626B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4884767A (en) * | 1972-02-04 | 1973-11-10 | ||
| CN103017490A (en) * | 2012-12-22 | 2013-04-03 | 四川能节环保科技有限公司 | Environment-friendly energy-saving rotary drying furnace system device |
| CN111023853A (en) * | 2019-12-26 | 2020-04-17 | 四川蓝海化工（集团）有限公司 | Conveying device for yellow phosphorus tail gas purification system |
-
2022
- 2022-07-21 CN CN202210858121.4A patent/CN115253626B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4884767A (en) * | 1972-02-04 | 1973-11-10 | ||
| CN103017490A (en) * | 2012-12-22 | 2013-04-03 | 四川能节环保科技有限公司 | Environment-friendly energy-saving rotary drying furnace system device |
| CN111023853A (en) * | 2019-12-26 | 2020-04-17 | 四川蓝海化工（集团）有限公司 | Conveying device for yellow phosphorus tail gas purification system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115253626A (en) | 2022-11-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11925898B2 (en) | Flue gas low-temperature adsorption denitrification method | |
| CN115253626B (en) | Movable prevents integrated preprocessing device of thermal power plant flue gas of collecting space area coal spontaneous combustion | |
| CN102661166A (en) | Method for purifying gas extracted by mine by using ionic liquid | |
| CN209271200U (en) | A kind of fire retardant anticorrosion erosion regenerator | |
| CN210601663U (en) | Chemical waste gas heat accumulation formula system of burning | |
| CN109260949B (en) | Fireproof and anti-corrosion regeneration tower | |
| CN208694613U (en) | A kind of nitrogen desorption condensate recycling device | |
| CN116459637A (en) | Fluorine chemical industry high-fluorine high-sulfur organic waste gas and waste liquid recycling environment-friendly treatment system and method | |
| CN207287084U (en) | The integrative environmentally-friendly equipment of desulphurization denitration dedusting | |
| CN211144551U (en) | Underground ventilation device for coal mine excavation | |
| CN110465182B (en) | Combined desulfurization and denitrification device | |
| CN218281194U (en) | Carbon dioxide capture and recovery device for flue gas waste heat utilization | |
| CN114053842A (en) | Recovery system and method for dissipated flue gas in liquid asphalt loading process | |
| CN203499721U (en) | Cooling device for underground refuge chamber | |
| CN106731442A (en) | A kind of low temperature composite catalytic oxidation administers the device of volatile organic contaminant | |
| CN209576113U (en) | A kind of ring type roasting furnace waste heat recycling and reusing system that dedusting moisture-catcher is set | |
| CN207307555U (en) | A kind of high efficient heat exchanging for corroding flue gas takes off white device | |
| CN221015235U (en) | Steel structure desulfurization and denitrification pool capable of reducing temperature | |
| CN105299674A (en) | Multifunctional smoke energy-saving and emission reduction system | |
| CN207334749U (en) | A kind of heat energy from waste gas Environmental-protection comprehensive utilizes device | |
| CN113926303B (en) | Low partial pressure carbon dioxide entrapment absorption tower | |
| CN220878297U (en) | Trapping system for trapping low-concentration carbon dioxide | |
| CN214620089U (en) | Heat conduction oil production equipment with protection function | |
| CN211753664U (en) | VOCs waste gas purification tower | |
| CN117563377B (en) | Superconducting asphalt fume purifying system and method |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |