CN210373502U - Fly ash recovery device - Google Patents
Fly ash recovery device Download PDFInfo
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- CN210373502U CN210373502U CN201920547897.8U CN201920547897U CN210373502U CN 210373502 U CN210373502 U CN 210373502U CN 201920547897 U CN201920547897 U CN 201920547897U CN 210373502 U CN210373502 U CN 210373502U
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Abstract
The utility model discloses a fly ash recovery device, which comprises an economizer and a water pool, wherein the water pool is also provided with a transmission device, the lower end opening of an ash receiving hopper is immersed in the water pool, the transmission device is provided with an ash guide plate and an ash scraping plate, the device is used for pushing fly ash into an ash receiving tank, a gate is arranged in the ash receiving tank, a push plate, a push rod, a first cylinder, a second cylinder, a gate plate and a weighing plate, the heating water-removing tank comprises a fly ash inlet, a sieve plate, a dry hot steam inlet, a steam outlet and a fly ash pumping pipe, the fly ash inlet is positioned in the middle of the heating water-removing tank, one end of the fly ash pumping pipe is connected to the lower part of the heating water-removing tank, a pumping pump is installed on the fly ash pumping pipe, the other end of the fly ash pumping pipe is connected with an ash tower, an ash discharging port is arranged at the lower end of the ash tower, a ventilating port is arranged at the upper end of the ash tower, a vibration ash-cleaning.
Description
Technical Field
The utility model belongs to the technical field of energy recovery utilizes, concretely relates to fly ash recovery unit.
Background
The utilization technology of fly ash in civil engineering and building materials industry is quite mature and widely popularized nationwide. The comprehensive utilization of the fly ash in China is mainly applied to the fields of engineering and building materials at present.
The process of the comprehensive utilization of the fly ash is very important work of grinding the fly ash by a fly ash mill. In recent years, the technology for extracting alumina from high-alumina fly ash is successfully researched and developed, industrialization is gradually realized, and experience is provided for extracting high-value components in fly ash. The comprehensive utilization of the fly ash in China goes through three stages of mainly storing, storing and using combined with mainly using, and at present, the pattern of mainly using is basically formed. However, the problem of the unbalance of east and west is more prominent in the overall view. Since 1998, a large number of coal-fired power plants in China are built in 22 large and medium-sized coal-electricity bases which are mostly in western regions, the building market capacity is small, the technical and economic conditions are poor, and the comprehensive utilization level of the fly ash is low.
In energy enterprises, air preheaters, coal economizers and other devices can generate objective fly ash, but the fly ash is not generated at one time, but is gradually generated in the combustion process of the air preheaters and the coal economizers, is in a fly ash state and is gradually deposited at the bottoms of the air preheaters and the coal economizers to form dust accumulation, and the dust accumulation needs to be cleaned regularly. Because the volumes of the air preheater and the economizer are very large, even if the lower part is subjected to convergence treatment, the length of the air preheater and the economizer is dozens of meters to twenty meters, and the air suction pump directly arranged below the air preheater and the economizer can not completely suck the fly ash below the air preheater and the economizer. And the manual cleaning is adopted, and the fly ash is light in weight, so that dust is easily raised in the cleaning process, and the health of a cleaner is harmed. Moreover, even if the fly ash is collected, the fly ash is easy to fly when loading. Therefore, it is urgently needed to design a fly ash recovery device which can prevent dust emission and is convenient for energy enterprises to use.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that to the not enough of above-mentioned prior art, provide fly ash recovery unit.
In order to realize the technical purpose, the utility model discloses the technical scheme who takes does:
fly ash recovery unit, wherein: the coal economizer comprises a coal economizer, wherein an ash receiving hopper with a large upper end opening and a small lower end opening is formed at the lower part of the coal economizer and is inserted into a water pool filled with water, a transmission device is also arranged in the water pool and comprises a first rotating wheel, a second rotating wheel and a belt wound on the first rotating wheel and the second rotating wheel, the first rotating wheel is positioned at the bottom of the water pool, the first rotating wheel is positioned at the edge of the upper part of a pool body of the water pool and extends out of the water surface, the lower end opening of the ash receiving hopper is immersed in the water of the water pool, meanwhile, the lower end of the ash receiving hopper is positioned right above the belt, ash falling from the ash receiving hopper falls into the water and sinks into the belt in the water, the second rotating wheel is connected with a stepping motor, and the stepping motor drives the second rotating wheel to continuously rotate, so that the ash falling on the belt moves towards the second rotating wheel; an ash scraping plate is arranged at the edge of the water pool below the second rotating wheel, the upper end of the ash scraping plate is in contact with the belt and is used for hanging ash adhered to the belt, an ash guide plate is further arranged at the upper end of the ash scraping plate, one end of the ash guide plate is fixedly connected with the ash scraping plate, the other end of the ash guide plate is inclined downwards and extends into the ash receiving tank, an opening is formed in the ash receiving tank, and the ash guide plate extends into the ash receiving tank from the opening; the ash receiving tank is internally provided with a gate opening, a push plate, a push rod, a first cylinder, a second cylinder, a gate plate and a weighing plate, the gate opening is arranged on the side wall of the bottom of the ash receiving tank and is used for connecting the ash receiving tank and the heating dehydration tank, the gate plate is positioned at the gate opening and is connected with the second cylinder, the second cylinder can drive the gate plate to move up and down, when the gate plate is positioned at the lower end of the stroke, the gate opening can be shielded to seal the gate opening, when the second cylinder is positioned at the upper end of the stroke, the gate opening is in an open state, the weighing plate is positioned on the bottom plate of the ash receiving tank and is used for weighing the weight of the fly ash falling in the ash receiving tank, the push plate is positioned at one side of the bottom of the ash receiving tank, which is opposite to the gate opening, the push plate is connected with the first cylinder through the push rod, the first cylinder can push the push plate to the gate opening, so that the fly ash, the fly ash inlet is positioned in the middle of the heating dewatering tank and is butted with the gate, the sieve plate is arranged in the middle of the heating dewatering tank and divides the heating dewatering tank into an upper part and a lower part, the sieve plate is obliquely arranged, the fly ash inlet is positioned at one side of the higher end of the sieve plate and is positioned above the sieve plate, the fly ash drops on the sieve plate from the gate through the fly ash inlet, the sieve plate is provided with a sieve mesh which is communicated from top to bottom, the dry hot steam inlet is arranged at the lower part of the heating dewatering tank, the dry hot steam inlet is provided with an electromagnetic switch and can inject dry hot steam into the heating dewatering tank, the steam outlet is positioned at the top of the heating dewatering tank, the steam outlet is covered with breathable gauze for preventing fly ash, the dry hot steam is blown out from the steam outlet after sequentially passing through the lower part of the heating dewatering tank, the sieve plate and the lower, the ash extraction pipe is provided with a pump, the other end of the ash extraction pipe is connected with the ash tower, the pump can pump air and powdered coal ash in a heating water removal tank into the ash tower, the lower end of the ash tower is provided with an ash discharge port, the upper end of the ash tower is provided with a ventilation port, the ventilation port is covered with ventilation gauze for preventing the coal ash from flying out, the lower end of the ash tower is provided with a convergence part, the convergence part is of a funnel-shaped structure with a large opening at the upper end and a small opening at the lower end, the upper end of the convergence part is communicated with the lower end of the ash tower, the lower end of the convergence part is connected with the ash discharge port, the ash discharge port is provided with an ash discharge port control switch, the convergence part is provided with a vibration ash removal device and a fluidization blowing device, the vibration ash removal device comprises a vibration motor arranged outside the ash tower and a vibration sheet close to the wall surface of the convergence part, the, the fluidization blowing device comprises a blowing pump arranged outside the ash tower and a blowing ring arranged on the inner wall of the convergence part, the blowing pump is connected with the blowing ring, a plurality of nozzles are arranged on the blowing ring, the orientation of the nozzles is right opposite to the center shaft of the convergence part, the fly ash recovery device further comprises a control device, the control device is respectively connected with the first cylinder, the second cylinder, the weighing plate, the electromagnetic switch, the pumping pump, the ash discharge opening control switch, the vibration motor and the blowing pump, the control device can receive the information of the weighing plate, and controls the operation of the first cylinder, the second cylinder, the pumping pump, the vibration motor and the blowing pump and the connection and disconnection of the electromagnetic switch and the ash discharge opening control switch.
In order to optimize the technical scheme, the specific measures adopted further comprise:
foretell heating water removal jar installs the heating water removal jar charge level indicator in the below of sieve, and the heating water removal jar charge level indicator is used for detecting the fly ash height of heating water removal jar inner surface, and the heating water removal jar charge level indicator is connected with controlling means to can send fly ash height information in the heating water removal jar to controlling means, controlling means is according to the function of the first cylinder of information control of heating water removal jar charge level indicator.
The ash tower is provided with ash tower level indicators at different heights, the ash tower level indicators are used for detecting the height of the fly ash in the ash tower, and the ash tower level indicators are connected with the control device and can send the height information of the fly ash in the ash tower to the control device.
The upper end of the ash tower is connected with a dust removal fan, the dust removal fan can blow air to the ventilation opening, and the air direction blows air from the outside of the ash tower to the inside of the ash tower, so that the fly ash adhered to the ventilation gauze of the ventilation opening falls off.
The control device is a PLC.
A method for recycling fly ash by a fly ash recycling device comprises the following steps:
step a, when the coal economizer operates, gradually depositing the fly ash in the coal economizer, enabling the fly ash to fall into a water pool from an ash receiving hopper, and enabling the fly ash powder to become fly ash slurry and fall onto a belt;
b, the belt is driven by the stepping motor to rotate, the belt drives the fly ash slurry to move to a second rotating wheel and reach the water surface of the water pool, the fly ash slurry is scraped onto the ash guide plate by the ash scraping plate, and then the fly ash slurry falls into the ash receiving tank along the ash guide plate;
c, continuously weighing the weight of the fly ash slurry in the ash receiving tank by the weighing plate, controlling the second cylinder to operate by the control device when the weight of the fly ash slurry exceeds a set value, lifting the gate plate by the second cylinder to open the gate, then operating the first cylinder to push the push plate to the gate, and pushing the fly ash slurry in the ash receiving tank to the sieve plate of the heating dewatering tank from the gate by the push plate; then the control device controls the first cylinder to operate, the push plate returns to the original position, the second cylinder operates again, the second cylinder puts down the flashboard, and the gate opening is closed; at the moment, the ash receiving tank and the heating dewatering tank are sealed and isolated;
d, opening an electromagnetic switch on a dry hot steam inlet by a control device, injecting the dry hot steam into the heating dewatering tank, taking away moisture in the fly ash slurry on the sieve plate by the steam, allowing the moisture to escape from a steam outlet, gradually changing the fly ash slurry into fly ash powder, falling from sieve pores of the sieve plate to the bottom of the heating dewatering tank, completely changing the fly ash slurry into the fly ash powder after the dry hot steam is injected for a certain time, and controlling the electromagnetic switch to be closed by the control device;
step e, continuously monitoring the height of the fly ash powder in the heating dewatering tank by a heating dewatering tank material level meter, controlling the pump to operate by a control device after the fly ash powder reaches a certain height, pumping the fly ash powder into an ash tower, and supplementing compensating air into the heating dewatering tank from a steam outlet; when the pump operates, the electromagnetic switch is necessarily closed;
step f, storing the fly ash powder in an ash tower, blowing air injected into the ash tower by a pump out of an air vent, and monitoring the height of the fly ash powder in the ash tower by an ash tower level indicator; when the control device receives an instruction of discharging the fly ash powder in the ash tower, the control device controls the vibration motor and the injection pump to operate simultaneously, so that the convergence part vibrates, the fly ash powder at the convergence part is fluidized, the fly ash powder is discharged from the ash discharge opening, the control device controls the opening of the ash discharge opening control switch, the fly ash powder is discharged from the ash discharge opening, and when the control device receives an instruction of closing the ash tower, the control device controls the closing of the ash discharge opening control switch, and the operation of the vibration motor and the injection pump is stopped at the same time.
The utility model discloses a fly ash recovery unit, the pond that fly ash was used is collected in the below installation of economizer, the lower extreme opening of the complete submergence economizer of water in this pond, therefore, fly ash in the economizer must fall into this pond, fly ash is stained with water in case, can deposit gradually, fall on transmission device's belt, fly ash after being stained with water can not the raise dust, the rotation of belt rethread runner this moment, will be stained with water fly ash and transport more than the surface of water, through scraping the hawk and leading the hawk with fly ash leading-in connect the ash can in store. The utility model discloses a design pond and half are half in aqueous, half transmission device on the surface of water, and the fly ash that will originally raise dust becomes fly ash mud, then transports to connect the ash can, has solved and has collected the easy raise dust of fly ash in-process, has the problem of pollution to the environment, still has degree of automation height simultaneously, can the advantage of automatic collection fly ash.
The utility model discloses further design the heating that turns back fly ash powder with fly ash mud and removed the water pitcher for heat fly ash mud, thereby make fly ash mud become the fly ash powder, so far, accomplished the preliminary collection of fly ash powder, neither had fly ash to escape from the economizer, also solved simultaneously because the economizer is too big, the unable aspiration pump of installing in bottom, the problem of unable collection fly ash powder.
The utility model discloses the ash tower has still been designed, an economizer corresponds one and connects ash can and a heating except that the water pitcher, and an ash tower then removes the water pitcher with all heats and corresponds, in a factory, set up an ash tower, all heats except that the water pitcher all is connected with this ash tower through the pipeline, fly ash is mixing high-pressure air and is pouring into the ash tower together, and pile up in the ash tower, the ash tower lower part has set up the convergence portion, vibrations ash removal device and fluidization jetting device have still been designed to the convergence portion, vibrations ash removal device can prevent that the fly ash of ash tower lower part from gluing in convergence portion department, and fluidization jetting device then can let the fly ash of convergence portion flow like liquid, guarantee that the fly ash of ash tower lower part is in flowable state, solve the fly ash when storing the bottom and solidify because of the backlog easily, influence the problem that the fly ash took out.
All the electric equipment of the device are controlled by a PLC, and the automation is high.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic view of the connection of the ash receiving tank and the heating and water removing tank.
The reference signs are: the device comprises an economizer 1, an ash receiving hopper 11, a water tank 2, water 21, a first rotating wheel 22, a second rotating wheel 23, a belt 24, an ash scraping plate 25, an ash guide plate 26, an ash receiving tank 3, a gate opening 31, a push plate 32, a push rod 33, a first air cylinder 34, a second air cylinder 35, a gate plate 36, a weighing plate 37, a heating and dewatering tank 4, a screen plate 41, a screen hole 41a, a dry hot steam inlet 42, an electromagnetic switch 42a, a steam outlet 43, a fly ash suction pipe 44, a suction pump 45, a heating and dewatering tank level gauge 46, an ash tower 5, a convergence part 51, a dust removal fan 52, an ash tower level gauge 53, an ash discharge opening 54, an air ventilation opening 55, a vibration device 6, a vibration motor 61, an ash cleaning sheet 62, a fluidization and blowing device 7, a blowing pump 71, a blowing ring 72 and a control device 8.
Detailed Description
Embodiments of the present invention are described in further detail below with reference to the accompanying drawings.
The fly ash recovery device of this embodiment, wherein: comprises a coal economizer 1, an ash receiving hopper 11 with a large upper end opening and a small lower end opening is formed at the lower part of the coal economizer 1, the ash receiving hopper 11 is inserted into a water pool 2, the water pool 2 is filled with water 21, the water pool 2 is also provided with a transmission device, the transmission device comprises a first rotating wheel 22, a second rotating wheel 23 and a belt 24 wound on the first rotating wheel 22 and the second rotating wheel 23, the first rotating wheel 22 is positioned at the bottom of the water pool 2, the first rotating wheel 22 is positioned at the edge of the upper part of the pool body of the water pool 2 and extends out of the water surface, the lower end opening of the ash receiving hopper 11 is immersed in the water of the water pool 2, meanwhile, the lower end of the ash receiving hopper 11 is positioned right above the belt 24, the ash falling from the coal economizer 1 falls into the water from the ash receiving hopper 11, the second rotating wheel 23 is connected with a stepping motor which drives the second rotating wheel 23 to rotate continuously, so that the ash falling on the belt 24 moves towards the second rotating wheel 23; an ash scraping plate 25 is arranged at the edge of the water pool 2 below the second rotating wheel 23, the upper end of the ash scraping plate 25 is in contact with the belt 24 and is used for hanging ash adhered to the belt 24, an ash guiding plate 26 is further arranged at the upper end of the ash scraping plate 25, one end of the ash guiding plate 26 is fixedly connected with the ash scraping plate 25, the other end of the ash guiding plate is inclined downwards and extends into the ash receiving tank 3, an opening is formed in the ash receiving tank 3, and the ash guiding plate 26 extends into the ash receiving tank 3 from the opening; the ash receiving tank 3 is internally provided with a gate 31, a push plate 32, a push rod 33, a first air cylinder 34, a second air cylinder 35, a gate 36 and a weighing plate 37, the gate 31 is arranged on the side wall of the bottom of the ash receiving tank 3 and is used for communicating the ash receiving tank 3 with the heating dewatering tank 4, the gate 36 is positioned at the gate 31, the gate 36 is connected with the second air cylinder 35, the second air cylinder 35 can drive the gate 36 to move up and down, when the gate 36 is positioned at the lower end of the stroke, the gate 31 can be shielded to seal the gate 31, when the second air cylinder 35 is positioned at the upper end of the stroke, the gate 31 is in an open state, the weighing plate 37 is positioned on the bottom plate of the ash receiving tank 3 and is used for weighing the weight of the fly ash falling in the ash receiving tank 3, the push plate 32 is positioned at one side of the bottom in the ash receiving tank 3 opposite to the gate 31, the push plate 32 is connected with the first air cylinder 34 through the push rod 33, the first air cylinder 34 can push the push plate 32 to the gate, the heating dewatering tank 4 comprises a fly ash inlet, a sieve plate 41, a dry hot steam inlet 42, a steam outlet 43 and a fly ash pumping pipe 44, wherein the fly ash inlet is positioned in the middle of the heating dewatering tank 4 and is butted with the gate 31, the sieve plate 41 is arranged in the middle of the heating dewatering tank 4 and divides the heating dewatering tank 4 into an upper part and a lower part, the sieve plate 41 is obliquely arranged, the fly ash inlet is positioned at one side of the higher end of the sieve plate 41, the fly ash inlet is positioned above the sieve plate 41, the fly ash falls onto the sieve plate 41 from the gate 31 through the fly ash inlet, a sieve hole 41a which is communicated up and down is arranged on the sieve plate 41, the dry hot steam inlet 42 is arranged at the lower part of the heating dewatering tank 4, an electromagnetic switch 42a is arranged on the dry hot steam inlet 42, the dry hot steam inlet 42 can inject dry hot steam into the heating dewatering tank 4, the steam outlet 43 is positioned at the top of the heating dewatering tank, dry hot steam is blown out from a steam outlet 43 after sequentially passing through the lower part of a heating dewatering tank 4, a sieve plate 41 and the lower part of the heating dewatering tank 4, one end of a fly ash pumping pipe 44 is connected with the lower part of the heating dewatering tank 4, a pumping pump 45 is installed on the fly ash pumping pipe 44, the other end of the fly ash pumping pipe 44 is connected with an ash tower 5, the pumping pump 45 can pump air and powdered fly ash in the heating dewatering tank 4 into the ash tower 5, the lower end of the ash tower 5 is provided with an ash discharge port 54, the upper end of the ash tower 5 is provided with a ventilating port 55, the ventilating port 55 is covered with ventilating gauze for preventing fly ash from flying out, the lower end of the ash tower 5 is provided with a convergent part 51, the convergent part 51 is of a funnel-shaped structure with a large opening at the upper end and a small opening at the lower end, the upper end of the convergent part 51 is communicated with the lower end of the ash tower 5, the lower end of the convergent part 51 is connected, the vibration ash cleaning device 6 comprises a vibration motor 61 arranged outside the ash tower 5 and a vibration sheet 62 close to the wall surface of the convergence part 51, the vibration motor 61 can drive the vibration sheet 62 to vibrate, the vibration sheet 62 vibrates and strikes the wall surface of the convergence part 51 to enable the fly ash attached to the wall surface of the convergence part 51 to fall off, the fluidization blowing device 7 comprises a blowing pump 71 arranged outside the ash tower 5 and a blowing ring 72 arranged on the inner wall of the convergence part 51, the blowing pump 71 is connected with the blowing ring 72, a plurality of nozzles are arranged on the blowing ring 72, the orientation of the nozzles is opposite to the central axis of the convergence part 51, the fly ash recovery device also comprises a control device 8, the control device 8 is respectively connected with the first air cylinder 34, the second air cylinder 35, the weighing plate 37, the electromagnetic switch 42a, the pumping pump 45, the ash discharge port control switch, the vibration motor 61 and the blowing pump 71, the control device 8 can receive the information, and controls the operations of the first air cylinder 34, the second air cylinder 35, the suction pump 45, the vibration motor 61 and the blowing pump 71 and the on-off of the electromagnetic switch 42a and the ash discharging port control switch.
In the embodiment, the heating dewatering tank 4 is provided with a heating dewatering tank level indicator 46 below the screen plate 41, the heating dewatering tank level indicator 46 is used for detecting the height of the fly ash on the inner lower surface of the heating dewatering tank 4, the heating dewatering tank level indicator 46 is connected with the control device 8, the height information of the fly ash in the heating dewatering tank 4 can be sent to the control device 8, and the control device 8 controls the operation of the first cylinder 34 according to the information of the heating dewatering tank level indicator 46.
In the embodiment, the ash tower 5 is provided with the ash tower level indicator 53 at different heights, the ash tower level indicator 53 is used for detecting the height of the fly ash in the ash tower 5, and the ash tower level indicator 53 is connected with the control device 8 and can send the height information of the fly ash in the ash tower 5 to the control device 8.
In the embodiment, the dust removing fan 52 is connected to the upper end of the ash tower 5, the dust removing fan 52 can blow air to the air vent 55, and the air direction is from the outside of the ash tower 5 to the inside of the ash tower 5, so that the fly ash adhered to the air permeable gauze of the air vent 55 falls off.
In the embodiment, the control device 8 is a PLC.
A method for recycling fly ash by a fly ash recycling device comprises the following steps:
step a, when the economizer 1 operates, the fly ash in the economizer 1 gradually deposits and falls into the water tank 2 from the ash receiving hopper 11, and fly ash powder is changed into fly ash slurry and falls on the belt 24;
step b, the belt 24 is driven by the stepping motor to rotate, the belt 24 drives the fly ash slurry to move to the position of the second rotating wheel 23 and reach the water surface of the water pool 2, the fly ash slurry is scraped onto the ash guide plate 26 by the ash scraping plate 25, and then the fly ash slurry falls into the ash receiving tank 3 along the ash guide plate 26;
c, continuously weighing the weight of the fly ash slurry in the ash receiving tank 3 by the weighing plate 37, controlling the second cylinder 35 to operate by the control device 8 when the weight of the fly ash slurry exceeds a set value, lifting the gate plate 36 by the second cylinder 35 to open the gate opening 31, then operating the first cylinder 34 to push the push plate 32 to the gate opening 31, and pushing the fly ash slurry in the ash receiving tank 3 to the sieve plate 41 of the heating dewatering tank 4 from the gate opening 31 by the push plate 32; then the control device 8 controls the first air cylinder 34 to operate, the push plate 32 returns to the original position, the second air cylinder 35 operates again, the second air cylinder 35 lowers the gate plate 36, and the gate opening 31 is closed; at the moment, the ash receiving tank 3 and the heating dewatering tank 4 are sealed and isolated;
d, the control device 8 opens an electromagnetic switch 42a on a dry and hot steam inlet 42, dry and hot steam is injected into the heating and water removing tank 4, the steam takes away moisture in the fly ash slurry on the sieve plate 41 and escapes from a steam outlet 43, the fly ash slurry gradually returns to fly ash powder and falls to the bottom of the heating and water removing tank 4 from a sieve hole 41a of the sieve plate 41, after the dry and hot steam is injected for a certain time, the fly ash slurry completely returns to the fly ash powder, and the control device 8 controls the electromagnetic switch 42a to be closed;
step e, continuously monitoring the height of the fly ash powder in the heating dewatering tank 4 by the heating dewatering tank level meter 46, controlling the pump 45 to operate by the control device 8 after the fly ash powder reaches a certain height, pumping the fly ash powder into the ash tower 5, and supplementing compensating air into the heating dewatering tank 4 from the steam outlet 43; when the pump 45 is operated, the electromagnetic switch 42a is necessarily turned off;
step f, storing the fly ash powder in the ash tower 5, blowing the air injected into the ash tower 5 by the pump 45 out of the air vent 55, and monitoring the height of the fly ash powder in the ash tower 5 by the ash tower level indicator 53; when the control device 8 receives a command for discharging the fly ash powder in the ash tower 5, the control device 8 controls the vibration motor 61 and the injection pump 71 to operate simultaneously, so that the convergence part 51 vibrates, the fly ash powder at the convergence part 51 is fluidized, the fly ash powder is discharged from the ash discharge port 54, the control device 8 controls the ash discharge port control switch to be opened, the fly ash powder is discharged from the ash discharge port 54, and at the moment, a transport vehicle waits for loading the fly ash powder from the ash discharge port 54. When the transport vehicle is full, the control device 8 receives an instruction for closing the ash tower 5, and the control device 8 controls the ash discharge port control switch to be closed, and simultaneously stops the operation of the vibration motor 61 and the blowing pump 71.
Above only the utility model discloses an it is preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, a plurality of modifications and decorations without departing from the principle of the present invention should be considered as the protection scope of the present invention.
Claims (5)
1. Fly ash recovery unit, characterized by: comprises an economizer (1), wherein the lower part of the economizer (1) is provided with an ash receiving hopper (11) with a large upper end opening and a small lower end opening, the ash receiving hopper (11) is inserted into a water pool (2), the water pool (2) is filled with water (21), the water pool (2) is also internally provided with a transmission device, the transmission device comprises a first rotating wheel (22), a second rotating wheel (23) and a belt (24) wound on the first rotating wheel (22) and the second rotating wheel (23), the first rotating wheel (22) is positioned at the water bottom of the water pool (2), the first rotating wheel (22) is positioned at the edge of the upper part of the pool body of the water pool (2) and extends out of the water surface, the lower end opening of the ash receiving hopper (11) is immersed in the water of the water pool (2), the lower end of the ash receiving hopper (11) is positioned right above the belt (24), the ash falling from the ash receiving hopper (11) falls into the water and sinks onto the belt (24) in the water, the second rotating wheel (23) is connected with a stepping motor, and the stepping motor drives the second rotating wheel (23) to continuously rotate, so that the ash falling on the belt (24) moves towards the direction of the second rotating wheel (23); an ash scraping plate (25) is arranged on the edge of the water pool (2) below the second rotating wheel (23), the upper end of the ash scraping plate (25) is in contact with the belt (24) and is used for hanging ash adhered to the belt (24), an ash guide plate (26) is further arranged at the upper end of the ash scraping plate (25), one end of the ash guide plate (26) is fixedly connected with the ash scraping plate (25), the other end of the ash guide plate inclines downwards and extends into the ash receiving tank (3), an opening is formed in the ash receiving tank (3), and the ash guide plate (26) extends into the ash receiving tank (3) from the opening; the ash receiving tank (3) is internally provided with a gate opening (31), a push plate (32), a push rod (33), a first air cylinder (34), a second air cylinder (35), a gate plate (36) and a weighing plate (37), the gate opening (31) is arranged on the side wall of the bottom of the ash receiving tank (3) and is used for communicating the ash receiving tank (3) with the heating and dewatering tank (4), the gate plate (36) is positioned at the gate opening (31), the gate plate (36) is connected with the second air cylinder (35), the second air cylinder (35) can drive the gate plate (36) to move up and down, when the gate plate (36) is positioned at the lower end of the stroke, the gate opening (31) can be shielded, the gate opening (31) is closed, when the second air cylinder (35) is positioned at the upper end of the stroke, the gate opening (31) is in an open state, the weighing plate (37) is positioned on the bottom plate of the ash receiving tank (3) and is used for weighing the weight of the fly ash falling in the ash, the coal ash heating and dewatering device is characterized in that the push plate (32) is located on one side, opposite to the gate opening (31), of the bottom in the ash receiving tank (3), the push plate (32) is connected with the first air cylinder (34) through the push rod (33), the first air cylinder (34) can push the push plate (32) to the gate opening (31) so as to push coal ash falling in the ash receiving tank (3) to the gate opening (31), the heating dewatering tank (4) comprises a coal ash inlet, a sieve plate (41), a dry hot steam inlet (42), a steam outlet (43) and a coal ash pumping pipe (44), the coal ash inlet is located in the middle of the heating dewatering tank (4) and is in butt joint with the gate opening (31), the sieve plate (41) is installed in the middle of the heating dewatering tank (4) and is divided into an upper part and a lower part, the sieve plate (41) is obliquely arranged, the coal ash inlet is located on one side of the higher end of the coal ash removing tank (41), and is located above the sieve, the fly ash falls onto the sieve plate (41) from the gate opening (31) through the fly ash inlet, the sieve plate (41) is provided with sieve pores (41a) which are communicated up and down, the dry hot steam inlet (42) is arranged at the lower part of the heating water removing tank (4), the dry hot steam inlet (42) is provided with an electromagnetic switch (42a), the dry hot steam inlet (42) can inject dry hot steam into the heating water removing tank (4), the steam outlet (43) is positioned at the top of the heating water removing tank (4), the steam outlet (43) is covered with breathable gauze for preventing fly ash from flying out, the dry hot steam is blown out from the steam outlet (43) after sequentially passing through the lower part of the heating water removing tank (4), the sieve plate (41) and the lower part of the heating water removing tank (4), one end of the fly ash pumping pipe (44) is connected with the lower part of the heating water removing tank (4), and the fly ash pumping pipe (44) is provided with a pumping pump (45), the other end of the coal ash pumping pipe (44) is connected with the ash tower (5), the air and powdered coal ash in the heating dewatering tank (4) can be pumped into the ash tower (5) by the pumping pump (45), the ash tower (5) lower end is provided with an ash discharging port (54), the upper end of the ash tower (5) is provided with a ventilating port (55), the ventilating port (55) is covered with breathable gauze for preventing the coal ash from flying out, the lower end of the ash tower (5) is provided with a convergence part (51), the convergence part (51) is a funnel-shaped structure with a large upper end opening and a small lower end opening, the upper end of the convergence part (51) is communicated with the lower end of the ash tower (5), the lower end of the convergence part (51) is connected with the ash discharging port (54), the ash discharging port (54) is provided with an ash discharging port control switch, the convergence part (51) is provided with a vibration blowing ash cleaning device (6) and a fluidization ash cleaning device (7), and the vibration blowing ash cleaning device (6) comprises a vibration motor (61) arranged outside the ash tower ( Vibration piece (62) that convergence portion (51) wall was pressed close to, shock dynamo (61) can drive vibration piece (62) vibrations, vibration piece (62) are strikeed to convergence portion (51) wall vibrations, make and paste the fly ash on convergence portion (51) wall and drop, fluidization jetting device (7) including installing jetting pump (71) outside ash tower (5) and installing jetting ring (72) on convergence portion (51) inner wall, jetting pump (71) be connected with jetting ring (72), jetting ring (72) on be provided with a plurality of nozzle, the orientation of nozzle is for just facing convergence portion (51) center pin, fly ash recovery unit still include controlling means (8), controlling means (8) respectively with first cylinder (34), second cylinder (35), weighing plate (37), electromagnetic switch (42a), pump (45), The ash discharge port control switch, the vibration motor (61) and the blowing pump (71) are connected, and the control device (8) can receive information of the weighing plate (37) and control the operation of the first air cylinder (34), the second air cylinder (35), the pumping pump (45), the vibration motor (61) and the blowing pump (71) and the on-off of the electromagnetic switch (42a) and the ash discharge port control switch.
2. A fly ash recovery device as defined in claim 1, wherein: heating except that water pitcher (4) install heating except that water pitcher charge level indicator (46) in the below of sieve (41), heating except that water pitcher charge level indicator (46) be used for detecting the fly ash height of heating except that interior lower surface of water pitcher (4), heating except that water pitcher charge level indicator (46) are connected with controlling means (8) to can remove the interior fly ash height information of water pitcher (4) with heating and send to controlling means (8), controlling means (8) are according to the operation of the first cylinder of information control (34) of heating except that water pitcher charge level indicator (46).
3. A fly ash recovery device as defined in claim 2, wherein: ash tower (5) install ash tower charge level indicator (53) respectively on the co-altitude, ash tower charge level indicator (53) be used for detecting the interior fly ash height of ash tower (5), ash tower charge level indicator (53) be connected with controlling means (8) to can send fly ash height information to controlling means (8) in ash tower (5).
4. A fly ash recovery device as defined in claim 3, wherein: the dust removing device is characterized in that the upper end of the ash tower (5) is connected with a dust removing fan (52), the dust removing fan (52) can blow air to the ventilating opening (55), the air direction is from the outside of the ash tower (5) to the inside of the ash tower (5), and fly ash adhered to the breathable gauze of the ventilating opening (55) falls off.
5. A fly ash recovery device as defined in claim 4, wherein: the control device (8) is a PLC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920547897.8U CN210373502U (en) | 2019-04-22 | 2019-04-22 | Fly ash recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920547897.8U CN210373502U (en) | 2019-04-22 | 2019-04-22 | Fly ash recovery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210373502U true CN210373502U (en) | 2020-04-21 |
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ID=70258433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920547897.8U Expired - Fee Related CN210373502U (en) | 2019-04-22 | 2019-04-22 | Fly ash recovery device |
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| Country | Link |
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| CN (1) | CN210373502U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109974019A (en) * | 2019-04-22 | 2019-07-05 | 亿利洁能科技（宿迁）有限公司 | Flyash recyclable device and its method for recycling flyash |
| CN113845930A (en) * | 2021-09-26 | 2021-12-28 | 云南盛楹环保工程有限公司 | Dust removal device and dust removal process of coke oven top coal charging car |
-
2019
- 2019-04-22 CN CN201920547897.8U patent/CN210373502U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109974019A (en) * | 2019-04-22 | 2019-07-05 | 亿利洁能科技（宿迁）有限公司 | Flyash recyclable device and its method for recycling flyash |
| CN113845930A (en) * | 2021-09-26 | 2021-12-28 | 云南盛楹环保工程有限公司 | Dust removal device and dust removal process of coke oven top coal charging car |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20200421 |