CN116809232A - Deironing equipment for thermal power plant - Google Patents
Deironing equipment for thermal power plant Download PDFInfo
- Publication number
- CN116809232A CN116809232A CN202310830243.7A CN202310830243A CN116809232A CN 116809232 A CN116809232 A CN 116809232A CN 202310830243 A CN202310830243 A CN 202310830243A CN 116809232 A CN116809232 A CN 116809232A
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- plates
- coal
- mounting
- mounting plates
- fixedly connected
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 164
- 239000003245 coal Substances 0.000 claims abstract description 153
- 229910052742 iron Inorganic materials 0.000 claims abstract description 82
- 239000002245 particle Substances 0.000 claims abstract description 63
- 238000007664 blowing Methods 0.000 claims abstract description 47
- 238000009434 installation Methods 0.000 claims description 19
- 238000004140 cleaning Methods 0.000 claims description 17
- 238000012216 screening Methods 0.000 claims description 14
- 239000004744 fabric Substances 0.000 claims description 5
- 230000007306 turnover Effects 0.000 claims description 5
- 238000010409 ironing Methods 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 abstract description 5
- 239000000725 suspension Substances 0.000 abstract description 4
- 238000009991 scouring Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 21
- 238000005096 rolling process Methods 0.000 description 11
- 238000001179 sorption measurement Methods 0.000 description 11
- 238000002485 combustion reaction Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 5
- 238000007790 scraping Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000013467 fragmentation Methods 0.000 description 2
- 238000006062 fragmentation reaction Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
- B03C1/30—Combinations with other devices, not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C19/00—Other disintegrating devices or methods
- B02C19/0056—Other disintegrating devices or methods specially adapted for specific materials not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/04—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area from a small area, e.g. a tool
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Combined Means For Separation Of Solids (AREA)
Abstract
The invention relates to the field of iron removal of thermal power plants, in particular to iron removal equipment for a thermal power plant. Technical problems: because the coals are different in size and doped together, when iron particles on the coals are adsorbed, the coals doped deep in the coal are not adsorbed. The technical scheme is as follows: an iron removing device for a thermal power plant comprises a first mounting plate, a second mounting plate, a feeding frame, a baffle plate and the like; two second mounting plates are arranged on the right sides of the two first mounting plates; the two first mounting plates are fixedly connected with a feeding frame together; all the first mounting plates and the second mounting plates are fixedly connected with two baffles. According to the invention, the air flow ejected from the concentrated position is stronger than the air flow ejected from the air holes on the first air blowing plate and the second air blowing plate, and the air flow ejected from the concentrated position drives the peripheral air to be ejected upwards, so that larger coal in the ejected area at the concentrated position is in a suspension state, and the larger coal can better receive the scouring of the air flow.
Description
Technical Field
The invention relates to the field of iron removal of thermal power plants, in particular to iron removal equipment for a thermal power plant.
Background
In the process of deironing coal in a thermal power plant, the following problems exist;
1. in the process of operating a thermal power plant, coal is conveyed into an incinerator in batches through a conveying belt, and the coal directly falls into the conveying belt, so that the coal and the conveying belt are impacted to cause coal fragmentation, dust is easily generated after the coal fragmentation, surrounding air is influenced, meanwhile, the coal is piled together for a long time, part of the coal is bonded together, and iron particles on the bonded coal cannot be effectively collected in the subsequent iron removal treatment process;
2. when coal is conveyed into the incinerator, iron particles attached to the coal are adsorbed by iron removing equipment, so that the influence of the iron particles on the combustion efficiency of the coal is avoided, and in the process of adsorbing the iron particles on the coal by the iron removing equipment, the iron particles on the coal are adsorbed by the coal because the iron particles are different in size and are doped together, so that the coal doped in depth cannot be adsorbed, and meanwhile, the iron particles attached to the joint surface of the large and small coals cannot be adsorbed, so that the residual iron particles on the large and small coals influence the combustion efficiency of the coal;
3. when the iron removal treatment is carried out on the coal, as the larger coal has no more rolling circles and the iron particles on the larger coal cannot be completely adsorbed, the iron particles on the larger coal need to be additionally treated.
Disclosure of Invention
The invention provides iron removing equipment for a thermal power plant, which aims to overcome the defect that iron particles on coal cannot be adsorbed to deep coal when the iron particles are adsorbed due to different sizes of the coal and are doped together.
The technical scheme is as follows: an iron removing device for a thermal power plant comprises a first mounting plate, a second mounting plate, a feeding frame, a first conveying belt and a baffle plate; two second mounting plates are arranged on the right sides of the two first mounting plates; the two first mounting plates are fixedly connected with a feeding frame together; all the first mounting plates and the second mounting plates are jointly provided with a first conveying belt for conveying coal; all the first mounting plates and the second mounting plates are fixedly connected with two baffles together; the device also comprises a string and a spring; a plurality of ropes for reducing impact force generated by coal falling are arranged on the feeding frame; two springs are respectively sleeved at two ends of each string, and two springs positioned on the same string are respectively attached to the left side face and the right side face of the feeding frame.
Further, all the strings are staggered in a top view.
Further, the screening and collecting system is also included; all the first mounting plates, the second mounting plates and the baffle plates are jointly provided with a screening and collecting system; the screening and collecting system comprises a first pushing block, a strip, a second pushing block and a collecting assembly; all the first mounting plates and the second mounting plates are jointly provided with a collecting assembly; the first conveyor belt consists of a conveying element and a plurality of cylinders, the conveying element is rotationally connected with the cylinders, torsion springs are arranged at the joints of the conveying element and the cylinders, and the distance between the cylinders can pass through smaller coal; a plurality of first pushing blocks and a strip are fixedly connected on the cylinder on each first conveyor belt for turning over coal; and a plurality of second pushing blocks for pushing the strip are fixedly connected to all the first mounting plates and the baffle plates respectively, and the strip is matched with the second pushing blocks.
Further, the upper surface of the first pushing block is obliquely arranged.
Further, the collecting assembly comprises a first guide plate, a first electromagnet, an electric push plate, a guide rod, a movable frame, a push rod, a scraping plate, a flexible column, a second electromagnet, an electric scraper, a second conveying belt, a first collecting container, an electric turnover frame and a second guide plate; two first guide plates which are in front-back symmetry are fixedly connected between the two first mounting plates, and a filter screen is arranged at the bottom of each first guide plate; a plurality of first electromagnets for primarily collecting iron particles on the coal are fixedly connected to the two first guide plates respectively; an electric push plate is arranged between the two first mounting plates, and the first guide plate is matched with the electric push plate; all the first mounting plates and the second mounting plates are fixedly connected with two guide rods together; the two guide rods are connected with a movable frame in a sliding way; the bottom of the movable frame is fixedly connected with a push rod; the push rod telescopic part is fixedly connected with a scraping plate, and shielding cloth is arranged between the scraping plate and the movable frame; the right side of the scraping plate is fixedly connected with a plurality of flexible columns, and the right side of each flexible column is provided with a ball; the opposite sides of the two first guide plates are fixedly connected with a second electromagnet for carrying out secondary collection on iron particles on coal respectively; the opposite sides of the two first guide plates are provided with electric scrapers for collecting iron particles collected by the second electromagnets, and the electric scrapers are matched with the second electromagnets; the left rear parts of the two second mounting plates are provided with second conveying belts; the bottoms of the two first guide plates are jointly provided with a first collecting container, the right side of the first collecting container is provided with an expansion part, and the expansion part is provided with a bandage; two electric roll-over frames are commonly installed at the bottoms of the two first guide plates, the electric roll-over frames are positioned in the first collecting container, and the first collecting container is matched with the electric roll-over frames; the left sides of the two second mounting plates are fixedly connected with a second guide plate.
Further, the bottom of the scraping plate is provided with a soft strip for avoiding the blockage of the filter screen at the bottom of the first guide plate.
Further, iron objects are arranged in each ball.
Further, the device also comprises a cleaning system; the two second mounting plates are jointly provided with a cleaning system, and the upper layer of the first conveyor belt penetrates through the cleaning system; the cleaning system comprises a first mounting frame, a first air extractor, a second mounting frame, a third electromagnet, a second collecting container, a first blowing plate, a second air extractor and a third pushing block; the two second mounting plates are fixedly connected with a first mounting frame, a plurality of holes are formed in the front side of the first mounting frame, a retaining plate is arranged in each hole, and the upper layer of the first conveyor belt penetrates through the first mounting frame; two first air extractors are arranged in the first installation frame; a second mounting frame is arranged in the first mounting frame, and the second mounting frame is positioned between the two first air extractors; a plurality of third electromagnets are arranged on the first installation frame; two second collecting containers are fixedly connected to the front side of the first mounting frame; two first air blowing plates are arranged in the second installation frame, a plurality of air holes are formed in the first air blowing plates, and the first air blowing plates are communicated with the second installation frame; two second air blowing plates are arranged in the second installation frame, a plurality of air holes are formed in the second air blowing plates, and the second air blowing plates are communicated with the second installation frame; the second air extractor is arranged at the bottom of the first air blowing plate above; and a plurality of third pushing blocks are fixedly connected to the opposite sides of the two second blowing plates respectively, and the third pushing blocks are matched with the long strips.
Further, a concentration part is arranged on the first blowing plate below.
Further, the air holes on the second air blowing plate face the first conveying belt in the first installation frame.
The beneficial effects are that: according to the invention, falling coal is buffered through the string, the string is driven to recover through the spring, the string pushes the coal in the recovering process of the string, the falling speed of the coal is reduced again, and the phenomenon that the coal is broken due to direct impact of the coal and the first conveying belt is avoided, and after the coal is broken, dust is easily generated to influence surrounding air.
According to the invention, the coal bonded together is cut off through the string, and the coal bonded together is dispersed through the impact generated by the coal falling down later, so that the problem that iron particles on the coal bonded together cannot be effectively collected in the subsequent iron removal treatment process is avoided.
According to the invention, the turnover long strips and the second pushing blocks are used for pushing the coal deposited on the first conveyor belt, so that the structure of coal deposition is changed, the deposited coal is scattered, the long strips are contacted with the second pushing blocks for multiple times, the large and small coals are screened, and the phenomenon that when iron particles on the coal adsorption coal are adsorbed, the adsorption treatment cannot be carried out on the coal doped in depth due to different sizes of the coals and doping of the coals is avoided.
According to the invention, the first electromagnet is used for carrying out preliminary adsorption on the iron particles on the smaller coal, and the second electromagnet is used for carrying out adsorption on the iron particles on the smaller coal rolling on the filter screen, so that the combustion efficiency of the coal is ensured not to be influenced by the iron particles remained on the smaller coal.
According to the invention, the first electromagnet is matched with the ball on the flexible column, so that smaller coal is frequently pushed, the rolling times of the smaller coal are increased again, and the first electromagnet has a better adsorption effect on iron particles on the smaller coal.
According to the invention, the air flow ejected from the concentrated position is stronger than the air flow ejected from the air holes on the first air blowing plate and the second air blowing plate, and the air flow ejected from the concentrated position drives the peripheral air to be ejected upwards, so that larger coal in the ejected area at the concentrated position is in a suspension state, and the larger coal can better receive the scouring of the air flow.
According to the invention, the shielding curtain is used for shielding outwards-diffused particles, and the first air extractor and the second air extractor are used for collecting the particles floating in the air, so that the influence of the particles on the peripheral air quality caused by the diffusion of the particles along with the air or the influence of the particles on the combustion efficiency of coal caused by the reattachment of the particles on larger coal is avoided.
Drawings
FIG. 1 is a schematic diagram of a first construction of the deironing device for a thermal power plant according to the present invention;
FIG. 2 is a schematic diagram of a second construction of the deironing device for a thermal power plant according to the present invention;
FIG. 3 is a sectional view showing a partial structure of the iron removing apparatus for a thermal power plant according to the present invention;
fig. 4 is a schematic diagram of a third structure of the deironing device for thermal power plant according to the present invention;
FIG. 5 is a schematic view showing a first partial construction of a screening and collecting system disclosed as an iron removing device for a thermal power plant according to the present invention;
FIG. 6 is a schematic view of a second partial structure of a screening and collecting system disclosed by the deironing equipment for the thermal power plant;
FIG. 7 is a partial sectional view of the screening and collecting system disclosed by the iron removing device for the thermal power plant;
FIG. 8 is a schematic view of a third partial structure of a screening and collecting system disclosed by the iron removal device for the thermal power plant;
FIG. 9 is an enlarged view of the structure at A of FIG. 8 of the present invention disclosed in the iron removal device for thermal power plant;
FIG. 10 is a sectional view showing a first partial construction of a cleaning system disclosed in the iron removing apparatus for a thermal power plant of the present invention;
FIG. 11 is a sectional view showing a second partial construction of the cleaning system disclosed in the iron removing apparatus for a thermal power plant of the present invention;
fig. 12 is a schematic view showing a partial structure of a cleaning system disclosed by the iron removing device for the thermal power plant.
In the reference numerals: 1-first mounting plate, 2-second mounting plate, 3-feeding frame, 4-first conveying belt, 5-baffle, 6-string, 7-spring, 101-first block, 102-strip, 103-second block, 104-first guide plate, 105-first electromagnet, 106-electric push plate, 107-guide rod, 108-moving frame, 109-push rod, 1010-scraper, 1011-flexible column, 1012-second electromagnet, 1013-electric scraper, 1014-second conveying belt, 1015-first collection container, 1016-electric roll-over stand, 1017-second guide plate, 201-first mounting frame, 202-first air extractor, 203-second mounting frame, 204-third electromagnet, 205-second collection container, 206-first air extractor, 207-second air extractor, 209-third block, 1010 a-flexible strip, 1011 a-round ball, 1015 a-expansion point, b-bandage, 201 a-retention plate, 202 a-206 a-concentration point.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Example 1
An iron removing device for a thermal power plant, as shown in figures 1-3, comprises a first mounting plate 1, a second mounting plate 2, a feeding frame 3, a first conveying belt 4 and a baffle plate 5; two second mounting plates 2 are arranged on the right sides of the two first mounting plates 1; the two first mounting plates 1 are fixedly connected with a feeding frame 3; all the first mounting plates 1 and the second mounting plates 2 are jointly provided with a first conveying belt 4; all the first mounting plates 1 and the second mounting plates 2 are fixedly connected with two baffles 5;
also comprises a string 6 and a spring 7; a plurality of strings 6 are connected on the feeding frame 3 in a sliding way; two ends of each string 6 are respectively sleeved with a spring 7, and two springs 7 positioned on the same string 6 are respectively attached to the left side face and the right side face of the feeding frame 3.
All the strings 6 are staggered in a overlook view, so that the coal is better intercepted and buffered.
When the thermal power plant works, coal is required to be transferred into the incinerator for operation, firstly, a worker controls the coal conveyor to convey the coal into the feeding frame 3, the coal is transferred into the falling feeding frame 3 from the coal conveyor, the coal is accumulated together for a long time, partial coal is bonded together, so that iron particles on the bonded coal cannot be effectively collected in the subsequent iron removal treatment process, the coal falls onto the first conveying belt 4 from the feeding frame 3, the coal is required to pass through the thin ropes 6 in the process of falling onto the first conveying belt 4 from the feeding frame 3, the thin ropes 6 start to bend downwards due to uneven distribution when falling, when the coal is contacted with the thin ropes 6, the corresponding springs 7 start to shrink, and at the moment, the falling speed of the coal is buffered, after the coal and the string 6 lose contact and fall onto the first conveying belt 4, the string 6 is driven by the spring 7 to restore to an initial state, when the coal is partially contacted with the string 6, the string 6 is extruded to start to bend downwards, the corresponding spring 7 starts to shrink, the coal is partially contacted with the string 6, after the string 6 is bent downwards to a designated degree, the string 6 is driven by the spring 7 to restore, at the moment, the coal is still contacted with the string 6, in the restoring process of the string 6, the coal is pushed by the string 6, the falling speed of the coal is reduced again, the coal is prevented from directly striking the first conveying belt 4, the coal is prevented from being cracked, dust is easy to generate after the coal is cracked, surrounding air is influenced, when the bonded coal is hung on the string 6, the bonded coal is impacted by the subsequently dropped coal, so that the bonded coal is dispersed, avoiding that iron particles on coal which are stuck together cannot be effectively collected in the subsequent iron removal treatment process.
Example 2
On the basis of the embodiment 1, as shown in fig. 4-9, a screening and collecting system is also included; all the first mounting plates 1, the second mounting plates 2 and the baffle plates 5 are jointly provided with a screening and collecting system; the screening and collecting system comprises a first pushing block 101, a long strip 102, a second pushing block 103 and a collecting assembly; all the first mounting plates 1 and the second mounting plates 2 are jointly provided with a collecting assembly; the first conveyor belt 4 consists of a conveying element and a plurality of cylinders made of nonmetal materials, the conveying element is rotationally connected with the cylinders, torsion springs are arranged at the joints of the conveying element and the cylinders, and the distance between the cylinders can pass through smaller coal; a plurality of first pushing blocks 101 and a strip 102 are fixedly connected on the cylinder on each first conveyor belt 4 respectively; a plurality of second pushing blocks 103 are fixedly connected to all the first mounting plates 1 and the baffle plates 5 respectively, and the long strips 102 are matched with the second pushing blocks 103.
The upper surface of the first pushing block 101 is inclined, so that smaller coal is conveniently guided to fall into the collecting assembly when being pushed.
The collecting assembly comprises a first guide plate 104, a first electromagnet 105, an electric push plate 106, a guide rod 107, a movable frame 108, a push rod 109, a scraper 1010, a flexible column 1011, a second electromagnet 1012, an electric scraper 1013, a second conveying belt 1014, a first collecting container 1015, an electric turning frame 1016 and a second guide plate 1017; two first guide plates 104 which are symmetrical front and back are fixedly connected between the two first mounting plates 1, and a filter screen is arranged at the bottom of each first guide plate 104; a plurality of first electromagnets 105 are fixedly connected to the two first guide plates 104 respectively; an electric push plate 106 is arranged between the two first mounting plates 1, and the first guide plate 104 is matched with the electric push plate 106; all the first mounting plates 1 and the second mounting plates 2 are fixedly connected with two guide rods 107; the two guide rods 107 are connected with a movable frame 108 in a sliding way; a push rod 109 is fixedly connected to the bottom of the movable frame 108; a scraper 1010 is fixedly connected to the telescopic part of the push rod 109, and shielding cloth is arranged between the scraper 1010 and the movable frame 108; the right side of the scraper 1010 is fixedly connected with a plurality of flexible columns 1011, and the right side of each flexible column 1011 is provided with a ball 1011a; a second electromagnet 1012 is fixedly connected to each of opposite sides of the two first guide plates 104; the two first guide plates 104 are mounted on opposite sides with electric scrapers 1013, the electric scrapers 1013 cooperating with the second electromagnets 1012; a second conveyer belt 1014 is arranged at the left rear of the two second mounting plates 2; the bottoms of the two first guide plates 104 are detachably connected with a first collecting container 1015 together, an expansion part 1015a is arranged on the right side of the first collecting container 1015, and a bandage 1015b is arranged on the expansion part 1015 a; two electric roll-over frames 1016 are mounted at the bottoms of the two first guide plates 104 together, the electric roll-over frames 1016 are positioned in the first collecting containers 1015, and the first collecting containers 1015 are matched with the electric roll-over frames 1016; the left side surfaces of the two second mounting plates 2 are fixedly connected with a second guide plate 1017.
The bottom of the scraper 1010 is provided with a soft strip 1010a, and the filter screen between the two first guide plates 104 is pressed by the soft strip 1010a, so that iron particles can fall into the first collecting container 1015 through the filter screen.
Each ball 1011a is internally provided with an iron object, when the ball 1011a moves to the adsorption range of the first electromagnet 105, the first electromagnet 105 adsorbs the ball 1011a, so that the flexible column 1011 starts to bend, smaller coal is pushed in the bending process of the flexible column 1011 to roll more, when the ball 1011a moves out of the adsorption range of the first electromagnet 105, the flexible column 1011 starts to recover and push the smaller coal again, the rolling times of the ball 1011 is increased again, and the adsorption effect of the first electromagnet 105 on the iron particles on the smaller coal is better.
Before use, the first electromagnet 105 and the second electromagnet 1012 are connected to a power source.
After coal falls onto the first conveyor belt 4, the coal is piled on the first conveyor belt 4, the coal is attached to the first pushing block 101 and the strip 102, the first conveyor belt 4 is started to convey the coal rightwards into the incinerator, when the strip 102 contacts with the second pushing block 103, the strip 102 turns leftwards to drive the corresponding cylinder and the second pushing block 103 to follow the turn, the coal piled on the first conveyor belt 4 is pushed through the turned strip 102 and the second pushing block 103, the piled structure of the coal is changed, so that piled coal is dispersed, larger coal stays on the first conveyor belt 4, smaller coal passes through the cylinder on the first conveyor belt 4 and falls onto the first guide plate 104, then the strip 102 contacts with the second pushing block 103 for multiple times, the coal with different sizes is screened, and the coal with different sizes is prevented from being doped, when the iron particles on the coal are adsorbed, the coal doped in the depth cannot be adsorbed, the smaller coal rolls on the filter screen between the two first guide plates 104, the iron particles on the smaller coal are adsorbed through the corresponding first electromagnet 105 in the process of rolling on the filter screen between the two first guide plates 104, the iron particles on the smaller coal are collected by the corresponding first electromagnet 105 in the process of rolling, are attached to the surface of the first electromagnet 105, the iron particles on the larger coal cannot be completely adsorbed because the larger coal does not have more rolling circles on the first guide plates 104, additional treatment is needed on the iron particles on the larger coal, after the screening of the large coal is completed, the scraper 1010 is attached to the first guide plates 104 at the moment, the initial state is as shown in figure 6, the push rod 109 is controlled to retract to drive the scraper 1010 and the flexible column 1011 to move upwards, the shielding cloth between the scraper 1010 and the movable frame 108 starts to fold, when the scraper 1010 is attached to the movable frame 108, the push rod 109 stops retracting, at the moment, small coal can easily pass through the distance between the scraper 1010 and the first guide plate 104, the electric push plate 106 is started to push the small coal between the electric push plate 106 and the movable frame 108 to the right, iron particles adsorbed on the first electromagnet 105 are pushed to the right in the process of pushing the small coal, in consideration of the fact that the small coal is not thoroughly adsorbed on the small coal in the process of rolling, the small coal rolls on the filter screen between the two first guide plates 104 in the process of pushing the small coal, the rest particles on the small coal drop into the first collecting container 1015, iron particles on smaller coal rolling on a filter screen are adsorbed by a second electromagnet 1012, so that the combustion efficiency of the coal is not influenced by the iron particles remained on the smaller coal, when the electric push plate 106 pushes the smaller coal between the electric push plate 106 and the movable frame 108 to the right of the movable frame 108, the electric push plate 106 stops pushing, then the electric push plate 106 moves leftwards to return to the initial position, the push rod 109 pushes out to drive the corresponding part to move downwards, when the scraper 1010 is separated from the first guide plate 104 by a specified distance, the push rod 109 stops pushing out, then the movable frame 108 drives the push rod 109, the scraper 1010 and the flexible column 1011 to move rightwards on the guide rod 107, meanwhile, the smaller coal is pushed to move rightwards by shielding cloth between the scraper 1010 and the movable frame 108, and in the process of pushing the smaller coal to rightwards by the scraper 1010, the filter screen between the two first guide plates 104 is pressed by the soft strip 1010a, so that iron particles can fall into the first collecting container 1015 through the filter screen, meanwhile, when the round ball 1011a moves to the adsorption range of the first electromagnet 105, the round ball 1011a is adsorbed by the first electromagnet 105, so that the flexible column 1011 starts to bend, smaller coal is pushed in the bending process of the flexible column 1011, more rolling is performed, when the round ball 1011a moves out of the adsorption range of the first electromagnet 105, the flexible column 1011 starts to recover, smaller coal is pushed again, the rolling times are increased again, the iron particles on the smaller coal have better adsorption effect by the first electromagnet 105, when the right side surface of the moving frame 108 is flush with the right side surface of the first guide plate 104, the moving frame 108 stops moving, at the moment, the smaller coal falls onto the second guide plate 1017 to roll towards the direction of the second conveying belt 1014, then the second conveyor belt 1014 conveys smaller coal into the incinerator for burning, after the moving frame 108 moves leftwards to restore to the initial position, the push rod 109 pushes out to drive the corresponding part to move downwards, after the scraper 1010 is attached to the first guide plate 104, the electric turning frame 1016 is started to turn outwards, the electric turning frame 1016 is attached to the bandage 1015b, the electric turning frame 1016 spreads the bandage 1015b, the expansion part 1015a follows deformation, the corresponding part is driven by the moving frame 108 to move rightwards to push all iron particles collected on the first electromagnet 105 rightwards, after the right side surface of the moving frame 108 is flush with the right side surface of the first guide plate 104 again, all iron particles collected on the first electromagnet 105 drop into the first collecting container 1015, meanwhile, the electric scraper 1013 is started to move rightwards to push all the iron particles collected by the second electromagnet 1012 downwards, is transferred into the first collecting container 1015, so as to avoid the influence of excessive iron particles accumulated on the first electromagnet 105 and the second electromagnet 1012 on the subsequent iron removal treatment of coal.
Example 3
On the basis of the embodiment 2, as shown in fig. 10-12, a cleaning system is further included; the two second mounting plates 2 are jointly provided with a cleaning system, and the upper layer of the first conveying belt 4 penetrates through the cleaning system; the cleaning system comprises a first mounting frame 201, a first air extractor 202, a second mounting frame 203, a third electromagnet 204, a second collection container 205, a first air blowing plate 206, a second air blowing plate 207, a second air extractor 208 and a third pushing block 209; the two second mounting plates 2 are fixedly connected with a first mounting frame 201, a plurality of holes are formed in the front side of the first mounting frame 201, a retaining plate 201a is arranged in each hole, and the upper layer of the first conveying belt 4 penetrates through the first mounting frame 201; two first air extractors 202 are installed in the first installation frame 201; a second mounting frame 203 is mounted in the first mounting frame 201, and the second mounting frame 203 is positioned between the two first air extractors 202; at least five third electromagnets 204 are inserted on the first mounting frame 201; the front side surface of the first installation frame 201 is fixedly connected with two second collection containers 205 which are distributed up and down; two first air blowing plates 206 which are vertically symmetrically distributed are arranged in the second installation frame 203, a plurality of air holes are formed in the first air blowing plates 206, and the first air blowing plates 206 are communicated with the second installation frame 203; two second air blowing plates 207 which are symmetrically distributed in the front-back direction are arranged in the second installation frame 203, a plurality of air holes are formed in the second air blowing plates 207, and the second air blowing plates 207 are communicated with the second installation frame 203; a second air extractor 208 is arranged at the bottom of the upper first air blowing plate 206; at least three third pushing blocks 209 are fixedly connected to opposite sides of the two second air blowing plates 207 respectively, and the third pushing blocks 209 are matched with the long strips 102.
The shielding curtains 202a are arranged on the two first air extractors 202, and the shielding curtains 202a are used for shielding out the outwards-diffused particles, so that the outwards-diffused particles are prevented from being scattered out along with air.
The first blowing plate 206 below is provided with a centralized position 206a, and the centralized position 206a sprays air flow stronger than the air holes on the first blowing plate 206 and the second blowing plate 207, and the air flow sprayed by the centralized position 206a drives peripheral air to spray upwards, so that larger coal in the spraying area of the centralized position 206a is in a suspension state, and the larger coal is better subjected to scouring of the air flow.
The air holes on the second air blowing plate 207 face the first conveying belt 4 in the first mounting frame 201, so that the air flow in the first mounting frame 201 is more concentrated, and coal is conveniently flushed.
Before use, the first air extractor 202 and the second air extractor 208 are connected with a vacuum generator, the second mounting frame 203 is connected with an external air source, and air is conveyed into the first air blowing plate 206 and the second air blowing plate 207 by the second mounting frame 203 to provide power for the third electromagnet 204.
In the process of conveying larger coal rightwards by the first conveying belt 4, the larger coal is additionally processed by a cleaning system, at the moment, the coal is conveyed into the cleaning system, air holes on the first air blowing plate 206 and the second air blowing plate 207 jet air flow to start blowing the larger coal on the first conveying belt 4, particles on the larger coal start to separate, are mixed into air to diffuse outwards, the shielding curtain 202a is used for shielding the outwards diffused particles, meanwhile, the first air extractor 202 is started to collect the outwards diffused particles, in the collecting process, iron particles in the particles are collected by the third electromagnet 204, after the strip 102 on a cylinder carrying the larger coal is contacted with the third pushing block 209, the strip 102 turns left to drive the corresponding cylinder and the second pushing block 103 to follow the turning, the strip 102 and the second pushing block 103 turn the larger coal, the air flow ejected by the centralized position 206a is stronger than the air flow ejected by the air holes on the first air blowing plate 206 and the second air blowing plate 207, the air flow ejected by the centralized position 206a drives the peripheral air to be ejected upwards, so that the larger coal in the ejection area of the centralized position 206a is in a suspension state, the larger coal better receives the flushing of the air flow, meanwhile, the second air extractor 208 is started to extract air, the extraction opening of the second air extractor 208 is opposite to the ejection area of the centralized position 206a, the larger coal is intensively flushed by the air to the ejection area of the centralized position 206a, the larger coal particles are all flushed, the particles float in the air and are gathered in the second air extractor 208, the quantity extracted by the second air extractor 208 is effective, the residual air is collected by the first air extractor 202 at the moment, the influence of the air quality of the periphery caused by the fact that the particles are diffused out along with the air is avoided, or the iron particles collected by the third electromagnet 204 are trapped by the trapping plate 201a in the process of pulling out the third electromagnet 204 after the iron removal treatment of the large coal is finished, so that the trapped iron particles slide to the second collecting container 205, and the worker can collect the iron particles conveniently.
The above embodiments are only preferred embodiments of the present invention and are not intended to limit the scope of the present invention, so that all equivalent modifications made by the appended claims shall be included in the scope of the present invention.
Claims (10)
1. An iron removing device for a thermal power plant comprises a first mounting plate (1), a second mounting plate (2), a feeding frame (3), a first conveying belt (4) and a baffle plate (5); two second mounting plates (2) are arranged on the right sides of the two first mounting plates (1); the two first mounting plates (1) are fixedly connected with a feeding frame (3) together; all the first mounting plates (1) and the second mounting plates (2) are jointly provided with a first conveying belt (4) for conveying coal; all the first mounting plates (1) and the second mounting plates (2) are fixedly connected with two baffles (5) together; it is characterized by also comprising a string (6) and a spring (7); a plurality of ropes (6) for reducing impact force generated by coal falling are arranged on the feeding frame (3); two ends of each string (6) are respectively sleeved with a spring (7), and the two springs (7) positioned on the same string (6) are respectively attached to the left side face and the right side face of the feeding frame (3).
2. A plant de-ironing apparatus according to claim 1, characterized in that all the strings (6) are staggered in top view.
3. The deironing device for a thermal power plant according to claim 1, further comprising a screening and collecting system; all the first mounting plates (1), the second mounting plates (2) and the baffle plates (5) are jointly provided with a screening and collecting system; the screening and collecting system comprises a first pushing block (101), a strip (102), a second pushing block (103) and a collecting assembly; all the first mounting plates (1) and the second mounting plates (2) are jointly provided with a collecting assembly; the first conveying belt (4) consists of a conveying element and a plurality of cylinders, the conveying element is rotationally connected with the cylinders, torsion springs are arranged at the joints of the conveying element and the cylinders, and the distance between the cylinders can pass through smaller coal; a plurality of first pushing blocks (101) for turning coal and a strip (102) are fixedly connected on the cylinder on each first conveyor belt (4); all the first mounting plates (1) and the baffle plates (5) are fixedly connected with a plurality of second pushing blocks (103) for pushing the long strips (102), and the long strips (102) are matched with the second pushing blocks (103).
4. A thermal power plant iron removing apparatus according to claim 3, wherein the upper surface of the first pushing block (101) is inclined.
5. A deironing device for a thermal power plant according to claim 3, characterized in that the collection assembly comprises a first guide plate (104), a first electromagnet (105), an electric push plate (106), a guide rod (107), a moving frame (108), a push rod (109), a scraper (1010), a flexible column (1011), a second electromagnet (1012), an electric scraper (1013), a second conveyor belt (1014), a first collection container (1015), an electric roll-over stand (1016) and a second guide plate (1017); two first guide plates (104) which are in front-back symmetry are fixedly connected between the two first mounting plates (1), and a filter screen is arranged at the bottom of each first guide plate (104); a plurality of first electromagnets (105) for primarily collecting iron particles on coal are fixedly connected to the two first guide plates (104) respectively; an electric push plate (106) is arranged between the two first mounting plates (1), and the first guide plate (104) is matched with the electric push plate (106); all the first mounting plates (1) and the second mounting plates (2) are fixedly connected with two guide rods (107) together; the two guide rods (107) are connected with a movable frame (108) in a sliding way; a push rod (109) is fixedly connected at the bottom of the movable frame (108); a scraper (1010) is fixedly connected to the telescopic part of the push rod (109), and shielding cloth is arranged between the scraper (1010) and the movable frame (108); the right side of the scraper (1010) is fixedly connected with a plurality of flexible columns (1011), and the right side of each flexible column (1011) is provided with a ball (1011 a); the opposite sides of the two first guide plates (104) are fixedly connected with a second electromagnet (1012) for carrying out secondary collection on iron particles on coal; the opposite sides of the two first guide plates (104) are provided with electric scrapers (1013) for collecting iron particles collected by the second electromagnets (1012), and the electric scrapers (1013) are matched with the second electromagnets (1012); a second conveying belt (1014) is arranged at the left rear part of the two second mounting plates (2); the bottoms of the two first guide plates (104) are jointly provided with a first collecting container (1015), the right side of the first collecting container (1015) is provided with an expansion part (1015 a), and the expansion part (1015 a) is provided with a bandage (1015 b); two electric turnover frames (1016) are mounted at the bottoms of the two first guide plates (104) together, the electric turnover frames (1016) are positioned in the first collecting container (1015), and the first collecting container (1015) is matched with the electric turnover frames (1016); the left sides of the two second mounting plates (2) are fixedly connected with a second guide plate (1017) together.
6. The iron removing apparatus for thermal power plant according to claim 5, wherein the bottom of the scraper (1010) is provided with a soft strip (1010 a) for avoiding clogging of the screen at the bottom of the first guide plate (104).
7. The iron removing apparatus for thermal power plant according to claim 5, wherein each of the balls (1011 a) is provided with an iron object.
8. An iron removal apparatus for a thermal power plant according to any one of claims 5 to 7, further comprising a cleaning system; the two second mounting plates (2) are jointly provided with a cleaning system, and the upper layer of the first conveying belt (4) penetrates through the cleaning system; the cleaning system comprises a first mounting frame (201), a first air extractor (202), a second mounting frame (203), a third electromagnet (204), a second collecting container (205), a first blowing plate (206), a second blowing plate (207), a second air extractor (208) and a third pushing block (209); the two second mounting plates (2) are fixedly connected with a first mounting frame (201) together, a plurality of holes are formed in the front side of the first mounting frame (201), a retaining plate (201 a) is arranged in each hole, and the upper layer of the first conveying belt (4) penetrates through the first mounting frame (201); two first air extractors (202) are arranged in the first mounting frame (201); a second mounting frame (203) is arranged in the first mounting frame (201), and the second mounting frame (203) is positioned between the two first air extractors (202); a plurality of third electromagnets (204) are arranged on the first installation frame (201); two second collection containers (205) are fixedly connected to the front side of the first installation frame (201); two first air blowing plates (206) are arranged in the second installation frame (203), a plurality of air holes are formed in the first air blowing plates (206), and the first air blowing plates (206) are communicated with the second installation frame (203); two second air blowing plates (207) are arranged in the second installation frame (203), a plurality of air holes are formed in the second air blowing plates (207), and the second air blowing plates (207) are communicated with the second installation frame (203); a second air extractor (208) is arranged at the bottom of the first air blowing plate (206) above; and a plurality of third pushing blocks (209) are fixedly connected to opposite sides of the two second blowing plates (207), and the third pushing blocks (209) are matched with the long strips (102).
9. The iron removing device for a thermal power plant according to claim 8, wherein the first blow plate (206) below is provided with a concentration point (206 a).
10. The iron removing apparatus for a thermal power plant according to claim 8, wherein the air holes on the second air blowing plate (207) are each directed toward the first conveyor belt (4) in the first mounting frame (201).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310830243.7A CN116809232A (en) | 2023-07-07 | 2023-07-07 | Deironing equipment for thermal power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310830243.7A CN116809232A (en) | 2023-07-07 | 2023-07-07 | Deironing equipment for thermal power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116809232A true CN116809232A (en) | 2023-09-29 |
Family
ID=88142792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310830243.7A Withdrawn CN116809232A (en) | 2023-07-07 | 2023-07-07 | Deironing equipment for thermal power plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116809232A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117772585A (en) * | 2023-12-28 | 2024-03-29 | 山东丰源宏科装备科技有限公司 | Coal screening device for scraper conveyor |
-
2023
- 2023-07-07 CN CN202310830243.7A patent/CN116809232A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117772585A (en) * | 2023-12-28 | 2024-03-29 | 山东丰源宏科装备科技有限公司 | Coal screening device for scraper conveyor |
| CN117772585B (en) * | 2023-12-28 | 2024-05-24 | 山东丰源宏科装备科技有限公司 | Coal screening device for scraper conveyor |
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