CN107228371B - Industrial flue ash removal equipment and control method thereof - Google Patents
Industrial flue ash removal equipment and control method thereof Download PDFInfo
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- CN107228371B CN107228371B CN201710640043.XA CN201710640043A CN107228371B CN 107228371 B CN107228371 B CN 107228371B CN 201710640043 A CN201710640043 A CN 201710640043A CN 107228371 B CN107228371 B CN 107228371B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J3/00—Removing solid residues from passages or chambers beyond the fire, e.g. from flues by soot blowers
- F23J3/02—Cleaning furnace tubes; Cleaning flues or chimneys
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
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- General Engineering & Computer Science (AREA)
- Incineration Of Waste (AREA)
- Cleaning In General (AREA)
Abstract
The invention relates to an industrial flue ash removal device and a control method thereof, wherein the device comprises a flue pipe, a power mechanism, a synchronous pulley mechanism, a movable cleaning mechanism, a blowing pipe, an automatic ash bucket loading and unloading mechanism and a base; the power mechanism drives a synchronous belt pulley mechanism arranged in the flue pipe to move; the synchronous pulley mechanism comprises a driving wheel, a driven wheel and a synchronous belt; the driving wheel and the driven wheel are arranged on the inner wall of the flue pipe; the movable cleaning mechanism comprises a slide bar fixing block, a slide bar, a mechanical arm and a cleaning piece; the sliding rod fixing block is fixedly arranged on the inner wall of the flue pipe; the ash bucket automatic loading and unloading mechanism is fixed on the base; the automatic ash bucket loading and unloading mechanism comprises an ash inlet channel, an ash blocking piece, a screw rod, a servo motor and a plurality of ash buckets arranged on the screw rod; the ash inlet of the ash inlet channel is arranged at the tail end of the inner wall of the flue pipe. The industrial flue ash removal equipment can effectively and automatically remove ash intelligently, and has good ash removal effect.
Description
Technical Field
The invention relates to the technical field of dust removal equipment, in particular to industrial flue dust removal equipment and a control method thereof.
Background
In the existing enterprises, a flue is usually arranged in a combustion furnace and a kiln, and flue gas and small-particle smoke dust generated in combustion are conveyed into dust removing equipment. In order to prevent dust in the flue gas from depositing in the flue, the flue gas flow rate of the pipeline is generally required to be 10-15 m/s, the flue gas flow rate must be reduced to about 7 m/s for special reasons, the flue gas contains various components, dust deposition is easy to generate under the condition of low flow rate, and flue scale is easy to form on the flue when the flue gas humidity is high and the flue gas temperature is lower than the acid dew point. The deposited ash not only has greater corrosion to the flue, but also can deteriorate the heat transfer effect in some scenes, such as radiant tubes, petrochemical plants, boilers and the like. In order to meet the process requirements of some production, the temperature of the hearth is required to be increased, so that the consumption of fuel is increased, the temperature of the hearth is increased, the temperature of the flue gas is influenced, the heat loss of the flue gas is increased, and more fuel is consumed. In the environments of petrochemical plants and the like, because of the increase of accumulated ash, the production is stopped for manual ash removal, so that the fluctuation of a thermodynamic system of the whole plant can be caused, and more energy sources can be wasted.
Most of the existing ash removing technologies are applied to environments such as boilers and the like needing continuous heating, and few special equipment are used for ash removing in a flue purely serving as a flue gas transition stage. Meanwhile, most of ash removing modes are single, and no matter steam ash removing or the prior gas pulse ash removing technology is adopted, accumulated ash is treated through medium, so that on one hand, the cost is increased due to the advancement of the technology, and on the other hand, the ash removing modes have poor cleaning effect on the accumulated ash under the condition that the flow rate of the flue gas cannot completely meet the requirement of blowing out residual accumulated ash of a horizontal flue.
According to the market demand of the current development status, it is necessary to research a key technology of the industrial flue ash removal equipment which is convenient for automatic intelligent ash removal and good in ash removal effect.
Disclosure of Invention
In view of the technical problems of poor ash removal effect and low intelligent degree in the background art, the invention aims to overcome the defects of the prior art and provide an industrial flue ash removal device with automatic intelligent ash removal and good ash removal effect and a control method thereof.
In order to solve the technical problems, the invention adopts the following technical measures:
an industrial flue ash removal device comprises a flue pipe, a power mechanism, a synchronous pulley mechanism, a movable cleaning mechanism, a blowing pipe, an automatic ash bucket loading and unloading mechanism and a base; the power mechanism drives a synchronous belt pulley mechanism arranged in the flue pipe to move; the synchronous pulley mechanism comprises a driving wheel, a driven wheel and a synchronous belt; the driving wheel and the driven wheel are arranged on the inner wall of the flue pipe; the movable cleaning mechanism comprises a slide bar fixing block, a slide bar, a mechanical arm and a cleaning piece; the sliding rod fixing block is fixedly arranged on the inner wall of the flue pipe; the cleaning piece is in a circular arc strip shape and is tightly attached to the inner wall of the flue pipe; the mechanical arm is sleeved on the sliding rod, one end of the mechanical arm is fixedly connected with the cleaning piece, and the other end of the mechanical arm is fixedly connected with the synchronous belt; the ash bucket automatic loading and unloading mechanism is fixed on the base; the automatic ash bucket loading and unloading mechanism comprises an ash inlet channel, an ash blocking piece, a screw rod, a servo motor and a plurality of ash buckets arranged on the screw rod; the ash inlet of the ash inlet channel is arranged at the tail end of the inner wall of the flue pipe.
As a further improvement, the number of the power mechanism, the synchronous pulley mechanism and the movable cleaning mechanism is two respectively; the two power mechanisms are respectively arranged at two sides of the outer wall in the axial direction of the flue pipe; the power mechanism comprises a driving motor, a driving gear and a driven gear; each driven gear is coaxially connected with the driving wheel in a transmission manner.
As a further improvement, the two cleaning pieces are in a semicircular arc strip shape, and the two ends of the circular arc are respectively and fixedly connected through the two mechanical arms; the two cleaning pieces are arranged at different positions in the axial direction of the flue pipe and are symmetrically distributed on the axial projection plane about the center of the flue pipe.
As a further improvement, the cleaning piece comprises a metal fixing layer and a soft brush layer which are sequentially arranged inside and outside; the metal fixing layer is fixedly connected with the soft brush layer through bolts, and the soft brush layer is contacted with the inner wall of the flue pipe.
As a further improvement, the lance comprises an air inlet and a lance body; the air inlet penetrates through the wall of the flue pipe; the spray pipe main body is provided with a plurality of air outlets; the number of the blowing pipes is two, and the blowing pipe bodies are respectively arranged at the outer sides of the cleaning pieces and used for blowing dust on the cleaning pieces.
As a further improvement, the automatic control device further comprises a PLC control system, wherein the inner walls of the flue pipe at the driving wheel and the driven wheel are respectively provided with an infrared distance sensor for controlling the mechanical arm to realize cyclic reciprocating motion.
As a further improvement, the ash blocking piece comprises an ash blocking plate and a cylinder connected with the ash blocking plate; a rectangular groove matched with the ash blocking plate is formed in the side face of the ash inlet channel; the cylinder can push the ash blocking plate to pass through the rectangular groove so as to prevent dust from continuing to fall into the ash bucket from the ash inlet channel.
As a further improvement, the number of the ash hoppers is two and the ash hoppers are respectively arranged at any end of the screw rod and below the ash inlet channel; the ash bucket comprises an ash bucket main body, an ash bucket fixing plate and a sliding block; the ash bucket fixing plate is used for fixing the ash bucket main body; the sliding block is fixedly connected with the ash bucket fixing plate and can drive the ash bucket main body to move on the screw rod; a pressure sensor is arranged in the ash bucket main body.
As a further improvement, the base is further provided with two light sensors positioned at two ends of the screw rod and a position sensor positioned in the middle of the screw rod.
A control method of industrial flue ash removal equipment comprises the following steps:
s1: the driving motor is started and is connected with the synchronous belt pulley mechanism through a transmission shaft to start to drive the cleaning piece to start to do linear motion;
s2: before the mechanical arm reaches the limit position of any one end of the synchronous wheel, feeding back the mechanical arm to the PLC control system through the infrared distance sensor so as to control the driving motor to brake, and simultaneously controlling the blowing pipe to blow compressed air to blow the cleaning piece to perform soot blowing operation;
s3: the PLC control system controls the driving motor to rotate reversely after the driving motor is braked for 4s to 7 s;
s4: before the mechanical arm reaches the limit position of the other end of the synchronous wheel, feeding back the mechanical arm to the PLC control system through the infrared distance sensor to control the driving motor to brake, and simultaneously controlling the blowing pipe to blow compressed air to blow the cleaning piece to perform soot blowing operation;
s5: the PLC control system controls the driving motor to rotate reversely after the driving motor is braked for 4s to 7 s;
s6: and repeating the steps S2 to S5 until the driving motor stops.
Compared with the prior art, the invention has the following advantages:
1. the movable cleaning mechanism in the industrial flue ash removal equipment adopts the structure that the mechanical arm is used for connecting the cleaning piece and the sliding rod to realize the linear motion of the cleaning piece, meanwhile, the outer layer of the cleaning piece is designed by simulating the shape of brush bristles, and meanwhile, the silicon rubber is selected as a soft material, so that unnecessary abrasion and damage to the flue wall can not be generated in the cleaning process. Meanwhile, the brush hair can vibrate due to resistance in the moving process, so that the brush hair has a better effect on cleaning deposited dust.
2. According to the industrial flue ash removal equipment, uninterrupted cyclic repeated motion of the mechanical arm is realized by adopting the synchronous belt and the driving direct current motor to be matched with the PLC control system, accurate starting and braking of the cleaning arm are realized by feedback of the sensor and good starting and braking performance of the direct current motor, unnecessary damage to other mechanisms caused by the fact that the cleaning arm passes over the limit position is avoided, and meanwhile, the synchronous belt can enable the mechanical arm to use lower resources to realize longer cleaning motion, so that cleaning effect and efficiency are improved.
3. According to the industrial flue ash removal equipment, the bearing capacity of the ash bucket is controlled by using the pressure sensor, meanwhile, the automatic loading and unloading device can realize replacement operation of the fully loaded ash bucket under the control system of the PLC, and an alarm lamp is used for reminding an operator of treating accumulated ash in the ash bucket. Through these devices not only can be accurate the bearing condition of accuse ash bucket, through pneumatic means cooperation simultaneously, the flue is in open state when avoiding changing the ash bucket, and automatic change device has also avoided carrying out artificial ash bucket that changes, has improved work efficiency.
4. The industrial flue ash removal equipment has the advantages of simple integral structure, convenience in maintenance, installation, inspection and the like, simplicity and convenience in operation and control, and easiness in use by any staff.
Drawings
FIG. 1 is a schematic diagram of an industrial flue dust removal device;
FIG. 2 is a schematic view of a part of the structure of an industrial flue dust removal device according to the present invention;
fig. 3 is a schematic diagram of a partial structure of an industrial flue ash removal device according to the present invention.
Description of the main reference signs
A flue pipe 10,
A power mechanism 20, a driving motor 21, a driving gear 22, a driven gear 23,
A synchronous pulley mechanism 30, a driving pulley 31, a driven pulley 32, a synchronous belt 33,
A movable cleaning mechanism 40, a slide bar fixing block 41, a slide bar 42, a mechanical arm 43, a cleaning member 44,
A blowing pipe 50, an air inlet 51, a blowing pipe main body 52,
The automatic ash bucket loading and unloading mechanism 60, an ash inlet channel 61, an ash blocking piece 62, an ash blocking plate 621, an air cylinder 622, a screw 63, a servo motor 64, an ash bucket 65, an ash bucket main body 651, an ash bucket fixing plate 652, a sliding block 653,
A base 70,
An infrared sensor 80,
An optical sensor 90,
Position sensor 100,
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
The invention is described in further detail below with reference to the attached drawings and detailed description:
referring to fig. 1 to 3, in an embodiment, an industrial flue ash removal apparatus includes a flue pipe 10, a power mechanism 20, a synchronous pulley mechanism 30, a moving and cleaning mechanism 40, a blowing pipe 50, an ash bucket automatic loading and unloading mechanism 60, and a base 70; the power mechanism 20 is fixed outside the device and is used for fixing the flue pipe 10 through other external devices; the synchronous pulley mechanism 30 and the movable cleaning mechanism 40 are arranged inside the flue pipe 10; the flue pipe 10 and the base 70 are fixedly connected through the ash bucket automatic loading and unloading mechanism 60; the power is transmitted from the power mechanism 20 to the synchronous pulley mechanism 30 to the movable cleaning mechanism 40 by adopting the cooperation of the two components, so that the cleaning mechanism can clean the inner wall of the flue pipe 10, and the flue pipe has the advantages of easy function and stable structure.
Referring to fig. 1 to 2, in the embodiment, the power mechanism 20 drives a synchronous pulley mechanism 30 disposed in the flue pipe 10 to move; the synchronous pulley mechanism 30 comprises a driving wheel 31, a driven wheel 32 and a synchronous belt 33; the driving wheel 31 and the driven wheel 32 are arranged on the inner wall of the flue pipe 10; the movable cleaning mechanism 40 comprises a slide bar fixing block 41, a slide bar 42, a mechanical arm 43 and a cleaning piece 44; the slide bar fixing block 41 is fixedly arranged on the inner wall of the flue pipe 10; the cleaning piece 44 is in a circular arc strip shape and is arranged close to the inner wall of the flue pipe 10; the mechanical arm 43 is sleeved on the sliding rod 42, one end of the mechanical arm is fixedly connected with the cleaning piece 44, and the other end of the mechanical arm is fixedly connected with the synchronous belt 33; the ash bucket automatic loading and unloading mechanism 60 is fixed on the base 70; the ash bucket automatic loading and unloading mechanism 60 comprises an ash inlet channel 61, an ash blocking piece 62, a screw rod 63, a servo motor 64 and a plurality of ash buckets 65 arranged on the screw rod 63; the ash inlet of the ash inlet channel 61 is arranged at the tail end of the inner wall of the flue pipe 10.
Further, the number of the power mechanism 20, the synchronous pulley mechanism 30 and the movable cleaning mechanism 40 is two respectively; the two power mechanisms 20 are respectively arranged at two sides of the outer wall of the flue pipe 10 in the axial direction; the power mechanism 20 comprises a driving motor 21, a driving gear 22 and a driven gear 23; each driven gear 23 is coaxially connected with the driving wheel 31 in a transmission manner; the number of the slide bar fixing blocks 41 of each movable cleaning mechanism 40 is two, and the two slide bar fixing blocks are respectively arranged at two ends of the synchronous wheel.
Specifically, the two cleaning members 44 are in a semicircular arc strip shape, and two circular arc ends are respectively and fixedly connected through the two mechanical arms 43; the two cleaning members 44 are disposed at different positions in the axial direction of the flue pipe 10 and symmetrically distributed on the axial projection plane with respect to the center of the flue pipe 10; the cleaning piece 44 comprises a metal fixing layer and a soft brush layer which are sequentially arranged inside and outside; the metal fixing layer and the soft brush layer are fixedly connected through bolts, and the soft brush layer is contacted with the inner wall of the flue pipe 10. The side surface of the mechanical arm 43 is arc-shaped and is attached to the cleaning member 44, a chute block is arranged below the mechanical arm, and a chute is formed in the chute block for the synchronous belt 33 to pass through and fixedly connected with the synchronous belt 33 through bolts.
The movable cleaning mechanism 40 adopts a structure that a mechanical arm 43 is used for connecting a cleaning piece 44 and a sliding rod 42 to realize the linear motion of the cleaning piece 44, meanwhile, the outer layer of the cleaning piece 44 is designed by simulating the shape of brush bristles, and meanwhile, the cleaning piece is made of a soft material such as silicone rubber, so that unnecessary abrasion and damage to the flue wall can not be generated in the cleaning process. Meanwhile, the brush hair can vibrate due to resistance in the moving process, so that the brush hair has a better effect on cleaning deposited dust.
Meanwhile, the synchronous belt 33 is an arc tooth synchronous belt 33 which is made of silicon rubber in consideration of the requirement of being used in smoke. The use temperature of the silicon rubber is between 50 ℃ below zero and 250 ℃, the highest bearing temperature is far higher than the environmental temperature of the flue, and meanwhile, the silicon rubber has good corrosion resistance. Compared with other types of synchronous belts 33 such as flat belts, V belts and the like, the arc tooth synchronous belt 33 does not need too high tension force requirements, does not have the phenomena of slipping and the like, and has larger torque. During the use, because the synchronous belt 33 is meshed with the synchronous belt 33, the belt teeth can squeeze out the internal air from the two sides of the wheel groove, and the ash in the air is taken away when the air is squeezed out, thereby achieving the effect of avoiding ash accumulation and being applicable to harsher dust environment. Among other properties, the tooth-in-arc synchronous belt 33 possesses good wear resistance without lubrication.
Referring to fig. 2, in an embodiment, the blowing pipe 50 includes an air inlet 51 and a blowing pipe body 52; the air inlet 51 is provided through the wall of the flue tube 10; a circular groove is formed on the inner wall of the flue pipe 10 for fixing the blowing pipe main body 52; the spray pipe main body is provided with a plurality of air outlets; the number of the blowing pipes 50 is two, and the blowing pipe bodies 52 are respectively closely attached to the outer sides of the cleaning members 44 and are used for blowing dust on the cleaning members 44.
Specifically, the PLC control system controls the compressed air to enter the blowing pipe 50, and the compressed air is blown through the reserved air outlet on the blowing pipe 50 to achieve the effect of removing the accumulated ash adhered to the cleaning piece 44 in the cleaning process. Meanwhile, because the cleaning piece 44 is blocked in the horizontal direction, compressed air can be sprayed out towards two sides, and dust accumulation at the bottom of the flue is blown up, so that the dust accumulation is more easily carried out of the flue by wind power. And simultaneously, the ash is prevented from accumulating at the limit position of the cleaning arm. The lance 50 is made of a lighter weight aluminum alloy material.
Referring to fig. 1, in the embodiment, the inner walls of the flue pipe 10 at the driving wheel 31 and the driven wheel 32 are further provided with an infrared sensor 80 respectively to control the mechanical arm 43 to implement a cyclic reciprocating motion; with this arrangement, braking of the drive motor 21 when it moves to the limit position can be effectively achieved to achieve continuous reciprocation of the robot arm 43.
Referring to fig. 1 and 3, in the embodiment, the base 70 is further provided with two optical sensors 90 located at two ends of the screw 63 and a position sensor 100 located in the middle of the screw 63; the base 70 is also provided with an alarm lamp; the base 70 is also provided with an aluminum profile for fixing and supporting the ash bucket automatic loading and unloading mechanism 60.
Further, the number of the ash hoppers 65 is two, and the ash hoppers 65 are respectively arranged at any end of the screw rod 63 and below the ash inlet channel 61; the ash bucket 65 comprises an ash bucket main body 651, an ash bucket fixing plate 652 and a sliding block 653; the hopper fixing plate 652 is for fixing the hopper main body 651; the sliding block 653 is fixedly connected with the ash bucket fixing plate 652 and can drive the ash bucket main body 651 to move on the screw rod 63; a pressure sensor is arranged in the ash bucket main body 651.
Specifically, the ash bucket fixing plate 652 is provided with a clamping groove, and two sides of the ash bucket fixing plate are provided with turnover buckles to achieve a fixing effect; the ash bucket main body 651 is placed in the clamping groove, the buckles at the two ends are turned over and clamped into the ash bucket main body 651, the ash bucket 65 is guaranteed to be fixed on the mechanism, the degree of freedom of the ash bucket 65 is limited, the buckles are only required to be broken off by force when the ash bucket 65 is required to be detached, and the ash bucket 65 can be smoothly separated from the mechanism to clean accumulated ash in the ash bucket 65.
Referring to fig. 1 and 3, in the embodiment, the ash blocking member 62 includes an ash blocking plate 621 and an air cylinder 622 connected to the ash blocking plate 621; a rectangular groove matched with the ash blocking plate 621 is formed on the side surface of the ash inlet channel 61; the cylinder 622 can push the ash blocking plate 621 through the rectangular slot to prevent the dust from continuing to fall from the ash chute 61 into the ash bucket 65; the structure is adopted to cooperate with a pressure sensor in the ash bucket main body 651 to detect the use condition so as to control the ash blocking plate 621 to push into the rectangular groove to temporarily prevent dust from continuously entering the ash bucket main body 651, thereby realizing the replacement of the lower ash bucket main body 651.
In sum, the weight of the deposited ash in the ash bucket main body 651 is measured through the pressure sensor, when the weight of the deposited ash in the ash bucket 65 reaches a rated value, the alarm lamp flashes and the PLC control system controls the cylinder 622 to push out, the deposited ash is prevented from continuously falling into the ash bucket main body 651 by the ash blocking block, then the full ash bucket main body 651 is controlled to move out of the ash falling port by the rotation of the screw motor, the position of the ash bucket main body 651 is determined by controlling motor braking through the two light sensors 90, and meanwhile, the forward and reverse rotation of the motor is determined by the obtained sensor signals. When the ash bucket 65 reaches the designated position, whether the ash bucket 65 reaches an ash falling port or not is determined by the position sensor 100 in the middle of the screw rod 63, if so, the cylinder 622 is retracted, and if not, the alarm lamp continuously flashes to remind an operator to check. By adopting the control mode, the bearing condition of the ash control hopper 65 can be accurately controlled, and meanwhile, the flue is prevented from being in an open state when the ash control hopper 65 is replaced by the cooperation of the pneumatic device, and the automatic replacing device also prevents the ash control hopper 65 from being manually replaced, so that the working efficiency is improved.
A control method of industrial flue ash removal equipment comprises the following steps:
s1: the driving motor 21 is started and is connected with the synchronous belt 33 through a transmission shaft, and the belt wheel mechanism is started to drive the cleaning piece 44 to start to do linear motion;
s2: before the mechanical arm 43 reaches the limit position of any end of the synchronous wheel, the infrared distance sensor is fed back to the PLC control system to control the driving motor 21 to brake, and simultaneously the blowing pipe 50 is controlled to blow compressed air to blow the cleaning piece 44;
s3: the PLC control system controls the driving motor 21 to reverse rotation after the driving motor 21 is braked for 4s to 7 s;
s4: before the mechanical arm 43 reaches the limit position of the other end of the synchronous wheel, the mechanical arm is fed back to the PLC control system through the infrared distance sensor to control the driving motor 21 to brake, and simultaneously control the blowing pipe 50 to blow compressed air to perform soot blowing operation on the cleaning piece 44;
s5: the PLC control system controls the driving motor 21 to rotate reversely after the driving motor 21 is braked for 4s to 7s, and the time is preferably 5s;
s6: steps S2 to S5 are repeated until the driving motor 21 is stopped.
By adopting the control mode, the cleaning arm can be accurately started and braked through the feedback of the sensor and the good starting and braking performance of the direct current motor, and the cleaning arm is prevented from exceeding the limit position to cause unnecessary damage to other mechanisms.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather to enable any modification, equivalent replacement, improvement or the like to be made within the spirit and principles of the invention.
Claims (10)
1. An industrial flue ash removal device which is characterized in that: comprises a flue pipe, a power mechanism, a synchronous pulley mechanism, a movable cleaning mechanism, a blowing pipe, an automatic ash bucket loading and unloading mechanism and a base; the power mechanism drives a synchronous belt pulley mechanism arranged in the flue pipe to move; the synchronous pulley mechanism comprises a driving wheel, a driven wheel and a synchronous belt; the driving wheel and the driven wheel are arranged on the inner wall of the flue pipe; the movable cleaning mechanism comprises a slide bar fixing block, a slide bar, a mechanical arm and a cleaning piece; the sliding rod fixing block is fixedly arranged on the inner wall of the flue pipe; the cleaning piece is in a circular arc strip shape and is tightly attached to the inner wall of the flue pipe; the mechanical arm is sleeved on the sliding rod, one end of the mechanical arm is fixedly connected with the cleaning piece, and the other end of the mechanical arm is fixedly connected with the synchronous belt; the ash bucket automatic loading and unloading mechanism is fixed on the base; the automatic ash bucket loading and unloading mechanism comprises an ash inlet channel, an ash blocking piece, a screw rod, a servo motor and a plurality of ash buckets arranged on the screw rod; the ash inlet of the ash inlet channel is arranged at the tail end of the inner wall of the flue pipe.
2. The industrial flue dust removal apparatus as set forth in claim 1, wherein: the number of the power mechanism, the synchronous pulley mechanism and the movable cleaning mechanism is two respectively; the two power mechanisms are respectively arranged at two sides of the outer wall in the axial direction of the flue pipe; the power mechanism comprises a driving motor, a driving gear and a driven gear; each driven gear is coaxially connected with the driving wheel in a transmission manner.
3. The industrial flue dust removal apparatus as set forth in claim 2, wherein: the two cleaning pieces are in a semicircular arc strip shape, and the two ends of the circular arc are fixedly connected through the two mechanical arms respectively; the two cleaning pieces are arranged at different positions in the axial direction of the flue pipe and are symmetrically distributed on the axial projection plane about the center of the flue pipe.
4. An industrial flue dust removal apparatus as claimed in claim 3, wherein: the cleaning piece comprises a metal fixing layer and a soft brush layer which are sequentially arranged inside and outside; the metal fixing layer is fixedly connected with the soft brush layer through bolts, and the soft brush layer is contacted with the inner wall of the flue pipe.
5. The industrial flue dust removal apparatus as set forth in claim 4, wherein: the blowing pipe comprises an air inlet and a blowing pipe main body; the air inlet penetrates through the wall of the flue pipe; the blowing pipe main body is provided with a plurality of air outlets; the number of the blowing pipes is two, and the blowing pipe bodies are respectively arranged at the outer sides of the cleaning pieces and used for blowing dust on the cleaning pieces.
6. The industrial flue dust removal apparatus as set forth in claim 2, wherein: the automatic control device further comprises a PLC control system, wherein the inner walls of the flue pipe at the driving wheel and the driven wheel are respectively provided with an infrared distance sensor for controlling the mechanical arm to realize cyclic reciprocating motion.
7. The industrial flue dust removal apparatus as set forth in claim 1, wherein: the ash blocking piece comprises an ash blocking plate and an air cylinder connected with the ash blocking plate; a rectangular groove matched with the ash blocking plate is formed in the side face of the ash inlet channel; the cylinder can push the ash blocking plate to pass through the rectangular groove so as to prevent dust from continuing to fall into the ash bucket from the ash inlet channel.
8. The industrial flue dust removal apparatus as set forth in claim 7, wherein: the number of the ash hoppers is two, and the ash hoppers are respectively arranged at any end of the screw rod and below the ash inlet channel; the ash bucket comprises an ash bucket main body, an ash bucket fixing plate and a sliding block; the ash bucket fixing plate is used for fixing the ash bucket main body; the sliding block is fixedly connected with the ash bucket fixing plate and can drive the ash bucket main body to move on the screw rod; a pressure sensor is arranged in the ash bucket main body.
9. The industrial flue dust removal apparatus as set forth in claim 8, wherein: the base is further provided with two light sensors positioned at two ends of the screw rod and a position sensor positioned in the middle of the screw rod.
10. A control method of an industrial flue dust removal apparatus according to claim 6, comprising the steps of:
s1: the driving motor is started and is connected with the synchronous pulley mechanism through a transmission shaft to start to drive the cleaning piece to start to do linear motion;
s2: before the mechanical arm reaches the limit position of any end of the synchronous belt, feeding back the mechanical arm to the PLC control system through the infrared distance sensor to control the driving motor to brake, and simultaneously controlling the blowing pipe to blow compressed air to blow the cleaning piece to perform soot blowing operation;
s3: the PLC control system controls the driving motor to rotate reversely after the driving motor is braked for 4s to 7 s;
s4: before the mechanical arm reaches the limit position of the other end of the synchronous belt, feeding back the mechanical arm to the PLC control system through the infrared distance sensor so as to control the driving motor to brake, and simultaneously controlling the blowing pipe to blow compressed air to blow the cleaning piece to perform soot blowing operation;
s5: the PLC control system controls the driving motor to rotate reversely after the driving motor is braked for 4s to 7 s;
s6: and repeating the steps S2-S5 until the driving motor stops.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710640043.XA CN107228371B (en) | 2017-07-31 | 2017-07-31 | Industrial flue ash removal equipment and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710640043.XA CN107228371B (en) | 2017-07-31 | 2017-07-31 | Industrial flue ash removal equipment and control method thereof |
Publications (2)
| Publication Number | Publication Date |
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| CN107228371A CN107228371A (en) | 2017-10-03 |
| CN107228371B true CN107228371B (en) | 2023-07-28 |
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| CN107906546A (en) * | 2017-11-23 | 2018-04-13 | 中材节能股份有限公司 | A kind of reciprocating deashing mechanism of waste heat boiler |
| CN108036340A (en) * | 2017-11-23 | 2018-05-15 | 中材节能股份有限公司 | A kind of boiler synchronization lifting deashing mechanism |
| CN107855326B (en) * | 2017-12-12 | 2023-07-14 | 福州大学 | Flue descaling system and working method thereof |
| CN107906548B (en) * | 2017-12-29 | 2023-08-25 | 福建工程学院 | Automatic ash removing device for flue and working method thereof |
| CN108061306B (en) * | 2018-01-24 | 2023-07-21 | 厦门理工学院 | Automatic flue ash removal device and automatic flue ash removal mode |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0544916A (en) * | 1991-08-12 | 1993-02-23 | Hitachi Zosen Eng Kk | Device for cleaning inside surface of chimney |
| CN203875077U (en) * | 2014-05-21 | 2014-10-15 | 中国石油大学(华东) | Ultrasonic and mechanical hybrid descaling device adaptive to variable pipeline diameter |
| CN204806422U (en) * | 2015-07-09 | 2015-11-25 | 孙煜 | Automatic cleaning device of power boiler chimney |
| CN107199219A (en) * | 2017-06-22 | 2017-09-26 | 福州大学 | Soot pipeline deashing device and its method of work |
| CN207112840U (en) * | 2017-07-31 | 2018-03-16 | 厦门理工学院 | A kind of industrial flue ash removing equipment |
-
2017
- 2017-07-31 CN CN201710640043.XA patent/CN107228371B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0544916A (en) * | 1991-08-12 | 1993-02-23 | Hitachi Zosen Eng Kk | Device for cleaning inside surface of chimney |
| CN203875077U (en) * | 2014-05-21 | 2014-10-15 | 中国石油大学(华东) | Ultrasonic and mechanical hybrid descaling device adaptive to variable pipeline diameter |
| CN204806422U (en) * | 2015-07-09 | 2015-11-25 | 孙煜 | Automatic cleaning device of power boiler chimney |
| CN107199219A (en) * | 2017-06-22 | 2017-09-26 | 福州大学 | Soot pipeline deashing device and its method of work |
| CN207112840U (en) * | 2017-07-31 | 2018-03-16 | 厦门理工学院 | A kind of industrial flue ash removing equipment |
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