CN212842988U - Ring cooling machine trolley N-stage stepped sealing and 360-degree flue gas recovery system - Google Patents

Abstract

The utility model discloses a ring cooling machine trolley N-level stepped sealing and 360-degree flue gas recovery system, which comprises connecting beams 108, wherein a trolley 109 is arranged between the adjacent connecting beams 108, an inner baffle 111 is arranged between the longitudinal wing plates of the adjacent connecting beams positioned at the inner side, and an outer baffle 112 is arranged between the longitudinal wing plates of the adjacent connecting beams positioned at the outer side; the bottom of each inner baffle plate is connected with an inner sealing plate 111a used for sealing the inner side of the corresponding trolley 109, the bottom of each outer baffle plate is connected with an outer sealing plate 112a used for sealing the outer side of the corresponding trolley 109, and the bottom surface of each connecting beam 108 is oppositely provided with a sealing plate I108 c used for sealing the rear side of the previous trolley and a sealing plate II 108d used for sealing the front side of the next trolley. The utility model discloses a carry out many places to the cold machine of ring and improve, the rotary seal of the cold machine of beaded finish improves the cold wind utilization ratio, reduces the energy consumption, realizes the hierarchical recycle of flue gas, energy saving and emission reduction.

Description

Ring cooling machine trolley N-stage stepped sealing and 360-degree flue gas recovery system

Technical Field

The utility model relates to a cold machine technical field of iron-making sintering ring specifically is a cold quick-witted platform truck N level ladder type of ring is sealed and 360 degrees flue gas recovery systems.

Background

In iron and steel production enterprises, sintering is one of iron-making production processes, and the process is to mix powdery mineral powder and coke powder and then form the mixture into blocks with a certain size through a sintering machine so as to facilitate smelting. The cooling of the sinter of the sintering machine is mainly realized by a cooling machine, and the cooling machine adopted by the steel enterprises at present has two forms of a belt cooling machine and a circular cooling machine. The circular cooler is a circular cooler for short and has the function of effectively cooling the hot sintered ore unloaded from the sintering machine, and compared with a belt cooler, the circular cooler has the advantages of small floor area, investment saving, high equipment utilization rate and the like. However, the circular cooling machine trolley moves circularly and has a large turning radius, so that the movement rule of the circular cooling machine trolley is more complicated than that of the linear movement of the belt cooling machine trolley, faults such as abrasion of a sealing ring by extrusion of the trolley body, increase of the current of a motor and the like occur. These phenomena affect the normal operation of the circular cooler and the cooling effect of the sinter.

The air leakage problem of the circular cooler is as follows: the effective airflow path of the circular cooler is from the gap of the grate to the material layer of the trolley and then to the fan through the sealing cover until the material is exhausted to the atmosphere through the chimney. The air leakage part is mainly concentrated at the inlet and outlet ends and between the two side breast boards of the trolley and the sealing cover above the side breast boards. The most serious and difficult to be radically treated in production is the air leakage between the two side breast boards of the trolley and the sealing cover above the side breast boards. Because the annular friction plate is easy to deform and is abraded for a long time at high temperature, the rubber sealing plate is easy to be torn or extruded off by the trolley breast plate, so that harmful cold air enters the annular cooler to generate air leakage.

Disclosure of Invention

To the air leakage problem that current cold machine of ring exists, the utility model discloses improve prior art, provide a cold quick-witted platform truck N level ladder type of ring is sealed and 360 degrees flue gas recovery systems.

The utility model discloses an adopt following technical scheme to realize:

an N-stage stepped sealing and 360-degree flue gas recovery system of a circular cooler trolley comprises a plurality of connecting beams positioned between an inner revolving frame and an outer revolving frame; a trolley is arranged between the adjacent connecting beams, the trolley comprises a trolley frame, the front part of the trolley frame is provided with a wheel pair, and the rear part of the trolley frame is connected with a hinge seat at the bottom surface of the connecting beam through a hinge; an inner baffle is arranged between the longitudinal wing plates of which the adjacent connecting beams are positioned at the inner side, and an outer baffle is arranged between the longitudinal wing plates of which the adjacent connecting beams are positioned at the outer side.

The bottom of each inner side baffle is connected with an inner side sealing plate used for sealing the inner side of the corresponding trolley, the bottom of each outer side baffle is connected with an outer side sealing plate used for sealing the outer side of the corresponding trolley, and the bottom surface of each connecting beam is relatively provided with a sealing plate I used for sealing the rear side of the previous trolley and a sealing plate II used for sealing the front side of the next trolley.

The discharging plate is fixed on the trolley frame through the supporting plate, multiple steps are arranged on the periphery of the upper surface of the trolley frame respectively, and each step is correspondingly provided with a sealing strip. For the inner side of the trolley, the inner side sealing strip I positioned on the innermost layer is arranged on the inner side sealing plate through the inner side pressing plate I and the bolt, the inner side sealing strip N positioned on the Nth layer is arranged on the inner side fixing frame N through the inner side pressing plate N and the bolt, and the inner side fixing frame N is arranged on the inner side sealing plate through the bolt; similarly, for the outer side of the trolley, the outer side sealing strip I positioned on the innermost layer is installed on the outer side sealing plate through the outer side pressing plate I and the bolt, the outer side sealing strip N positioned on the Nth layer is installed on the outer side fixing frame N through the outer side pressing plate N and the bolt, and the outer side fixing frame N is installed on the outer side sealing plate through the bolt; similarly, for the front side of the trolley, the front side sealing strip I positioned on the innermost layer is arranged on a sealing plate II on the bottom surface of the front connecting beam through a front side pressing plate I and a bolt, the front side sealing strip N positioned on the Nth layer is arranged on a front side fixing frame N through a front side pressing plate N and a bolt, and the front side fixing frame N is arranged on the sealing plate II on the bottom surface of the front connecting beam through a bolt; similarly, for the rear side of the trolley, the rear side sealing strip I positioned on the innermost layer is installed on the sealing plate I on the bottom surface of the rear connecting beam through the rear side pressing plate I and the bolt, the rear side sealing strip N positioned on the Nth layer is installed on the rear side fixing frame N through the rear side pressing plate N and the bolt, and the rear side fixing frame N is installed on the sealing plate I on the bottom surface of the rear connecting beam through the bolt.

The air inlet end of each connecting beam is connected with an annular air channel upper cover through a main air channel, the air channel upper cover is positioned above the annular air channel, water containing interlayers are respectively arranged on two sides of the annular air channel, and lower annular sealing plates are respectively arranged on two sides of the air channel upper cover and inserted into the water containing interlayers on two sides of the air channel upper cover; the bottom surface of the annular air duct is connected with a plurality of air coolers through air pipes respectively.

The outer upper parts of all the inner side baffles are jointly provided with inner annular water tanks, an inner water tank upper cover is arranged above the inner annular water tanks, and an upper annular sealing plate on the bottom surface of the inner water tank upper cover is inserted into the inner annular water tanks; an outer annular water tank is jointly installed on the outer upper parts of all the outer side baffles, an outer water tank upper cover is arranged above the outer annular water tank, and an upper annular sealing plate on the bottom surface of the outer water tank upper cover is inserted into the outer annular water tank; the inner water tank upper cover and the outer water tank upper cover are respectively positioned at the bottom of the inner side and the outer side of the annular flue gas hood, a charging hole is reserved on the annular flue gas hood, and a discharge flue is arranged on the annular flue gas hood.

Preferably, the annular flue gas hood is internally divided into a high-temperature flue gas section, a medium-temperature flue gas section and a low-temperature flue gas section by a partition plate, and medium-high temperature smoke exhaust located in the high-temperature flue gas section and the medium-temperature flue gas section is connected with a hot air end of the flue gas recovery heat exchange equipment.

Preferably, the annular air duct is connected with a circulating cold air pipe corresponding to the high-temperature flue gas section and the medium-temperature flue gas section, and the circulating cold air pipe is connected with a cold air end of the flue gas recovery heat exchange device.

Further preferably, the section of the annular flue gas hood is arc-shaped or trapezoid.

When the automatic ore feeding device works, the inner side baffle, the outer side baffle, the connecting beam, the trolley and the inner and outer revolving frames jointly form a rotating mechanism for containing ore materials, the connecting beam is fixed between the inner revolving frame and the outer revolving frame to form a whole, and the revolving frame is driven by the power device to rotate and simultaneously realizes the rotating motion of the trolley on the circular track. Each trolley is sealed through the sealing strips distributed in a multi-layer stepped mode around the trolley, air leakage is prevented, the circular track is provided with an unloading bend, a discharge opening is formed in the position, the trolley runs to the unloading bend, the trolley drives into the straight track again after unloading is completed, the trolley is located between the inner side baffle plate, the outer side baffle plate, the front connecting beam and the rear connecting beam again, and the trolley is in close contact with the sealing strips on the inner side and the outer side and the sealing strips on the front side and the rear side to achieve multi-layer sealing. In the process that the rotary mechanism continuously rotates on the annular track (the upper cover of the air duct synchronously rotates along with the rotary mechanism under the connection of the main air duct), after the materials are fed from a charging port (the charging port is positioned obliquely above the discharging curved rail) positioned above the air duct, the air supply system is started, cold air is fed by a plurality of air coolers or is fed through a circulating cold air pipe, the annular air duct is rotationally sealed through a lower annular sealing plate to prevent air leakage, and the cold air enters the annular cooler through the main air duct to cool the materials. The rotary mechanism is provided with an annular flue gas cover, and the two sides of the annular flue gas cover realize rotary sealing through the inner and outer annular water tanks and the upper annular sealing plate so as to prevent flue gas leakage. After the rotating mechanism rotates for a circle, cold air cools the materials to a preset temperature, when the trolley passes through the bent discharging bend, the materials fall into the discharging opening under the action of gravity, then the trolley moves to the plane track, and the materials are charged through the charging opening, so that continuous cooling operation is realized.

The utility model has the advantages of as follows:

1. through arranging N level sealing washer around each platform truck (inside and outside and front and back side), each layer sealing washer of every side all independently sets up to with the cooperation of corresponding step on the platform truck, every layer sealing strip all can independently be dismantled, adjustable from top to bottom, realize the totally enclosed bottom the platform truck all around, the multilayer is sealed moreover brings the cooling, falls the amount of wind, falls the multiple effect of wind pressure, the at utmost improves cold wind utilization ratio.

2. The annular air duct is arranged, the water containing interlayer is arranged on the inner side and the outer side of the annular air duct, and the rotary sealing is realized through the lower annular sealing plate, so that the cold air leakage is prevented.

3. The inner side and the outer side of the annular flue gas cover are respectively provided with an inner annular water tank and an outer annular water tank, and the inner side and the outer side of the rotating mechanism in the rotating process are rotationally sealed through the upper annular sealing plate, so that the flue gas leakage is prevented.

4. The annular cooling process is divided into a low-temperature section, a medium-temperature section and a high-temperature section in the annular flue gas hood through the partition plate, medium-high temperature flue gas collected by the medium-high temperature section discharge flue enters flue gas recovery heat exchange equipment for cyclic utilization, and cold air after heat exchange can be sent back to the annular flue, so that the effects of energy conservation and emission reduction are achieved. The low-temperature section flue gas is also collected through an independent low-temperature section discharge flue to be recycled, so that 360-degree flue gas recycling is realized.

5. The section of the annular flue gas hood is designed to be trapezoidal or arc-shaped, so that the outflow resistance of the flue gas is reduced, and the exhaust of the flue gas is accelerated.

The utility model relates to a rationally, through carrying out many places improvement to the cold machine of current ring, the rotary seal of the cold machine of all-round beaded finish reduces the energy consumption when improving the cold wind utilization ratio, realizes the hierarchical recycle of flue gas, and energy saving and emission reduction reduces the business operation cost of enterprise, has fine practical application and spreading value.

Drawings

FIG. 1 shows a schematic cross-sectional view of a ring cooler.

FIG. 1a shows a schematic upper section of the ring cooler.

Fig. 2 shows a schematic view of the trolley.

Fig. 3 is a schematic view showing the assembly of the bogie, the front and rear connecting beams, and the left and right side sills.

Fig. 4 shows the cold wind direction diagram of fig. 3.

Fig. 5 shows a schematic front-rear side seal of the carriage.

Fig. 6 shows a schematic view of the connection of the trolley and the connecting beam.

Fig. 7 shows a trolley discharge diagram.

Figure 8 shows a schematic of the two side (inboard and outboard) seal of the trolley.

Fig. 9 shows an enlarged view of the carriage outer side (B portion) seal.

Fig. 10 shows an enlarged view of the carriage inner side (a portion) seal.

FIG. 11 shows a schematic expanded view of the flue gas recovery of the annular cooler.

In the figure: 100-ore material, 101-bottom frame, 101 a-frame columns, 102-inner revolving frame, 103-outer revolving frame, 104-inner guide rail, 105-outer guide rail, 106-inner idler ring, 107-outer idler ring, 108-connecting beam (108I-front connecting beam, 108 II-rear connecting beam), 108 a-triangular cross beam, 108 b-longitudinal wing plate, 108 c-sealing plate I, 108 d-sealing plate II, 108 e-hinge seat, 109-trolley, 109 a-trolley frame, 109 b-wheel pair, 109 c-supporting plate, 109 d-discharging plate, 109 e-hinge, 110-circular track, 110 a-discharging curved track, 110 b-track frame, 111-inner baffle, 111 a-inner sealing plate, 111 b-inner seal strip I, 111 c-inner press plate I, 111 d-inner seal strip N, 111 e-inner press plate N, 111 f-inner fixing frame N, 112-outer baffle plate, 112 a-outer seal plate, 112 b-outer seal strip I, 112 c-outer press plate I, 112 d-outer seal strip N, 112 e-outer press plate N, 112 f-outer fixing frame N, 113-annular air duct, 113 a-water containing interlayer, 113 b-lower annular seal plate, 114-air duct upper cover, 115-main air duct, 116-ventilation shutter, 117-air cooler, 117 a-air duct, 118-gear pin, 119-gear roller, 120-motor, 121-speed changer, 121 a-longitudinal shaft, 122-driving gear, 123-an annular flue gas hood, 124-a partition plate, 125-an inner annular water tank, 126-an inner water tank upper cover, 127-an outer annular water tank, 128-an outer water tank upper cover, 129-an upper annular sealing plate, 130-a circulating cold water pipe, 131-a charging port, 132-a discharging port, 133-a bolt, 134-a middle-high temperature section discharge flue, 135-a low temperature section discharge flue and 136-flue gas recovery heat exchange equipment.

Detailed Description

The following describes in detail specific embodiments of the present invention with reference to the accompanying drawings.

An independent air supply circular cooler comprises a trolley N-level stepped seal and a 360-degree flue gas recovery system. The rotating mechanism of the ring cooling machine has multiple modes, the present embodiment adopts gear drive, specifically, as shown in fig. 1, an inner rotating frame 102 and an outer rotating frame 103 are arranged on a bottom frame 101, the bottom surface of the inner rotating frame 102 is located on an inner carrier roller ring 106 (formed by a plurality of inner carrier rollers) through an inner guide rail 104, the bottom surface of the outer rotating frame 103 is located on an outer carrier roller ring 107 (formed by a plurality of outer carrier rollers) through an outer guide rail 105, and the inner carrier roller ring 106 and the outer carrier roller ring 107 are installed on the bottom frame 101. A circle of tooth rollers 119 are arranged on the inner side surface of the inner revolving frame 102 through tooth pins 118; three motors 120 are mounted on the bottom frame 101 in the inner revolving frame 102 to drive the revolving mechanism to run together, each motor 120 drives an output longitudinal shaft 121a to rotate through a speed changing device 121, a driving gear 122 is mounted on the output longitudinal shaft 121a, and the driving gear 122 is engaged with a rack 119 on the inner side surface of the inner revolving frame 102 to drive the inner revolving frame 102 to rotate. In addition, the inner revolving frame 102 may also be driven by a friction disk, which are all in the prior art and will not be described herein.

A plurality of connecting beams 108 are uniformly arranged between the inner revolving frame 102 and the outer revolving frame 103, as shown in fig. 3, the connecting beams 108 are hollow, the middle part thereof is a triangular cross beam 108a, both sides of the triangular cross beam 108a are designed into ventilation louver panes, the inner ends of the connecting beams 108 are fixedly connected to the inner revolving frame 102, the outer ends thereof are fixedly connected to the outer revolving frame 103 (as shown in fig. 1 a), and trolleys 109 are symmetrically arranged at both ends of the connecting beams 108 and between the bottoms of the adjacent connecting beams 108 with longitudinal wing plates 108 b.

As shown in fig. 3 and 6, the trolley 109 comprises a trolley frame 109a, a set of wheel pairs 109b is mounted at the front part of the trolley frame 109a, and the rear part of the trolley frame 109a is connected with a hinge seat 108d at the bottom surface of the connecting beam 108 through a hinge 109 e; the carriage frame 109a is fixedly welded with a stripper plate 109d via a support plate 109 c.

The discharge plates 109d of all the trolleys 109 form a bottom plate for the circular cooler to contain the ore materials 100, and triangular cross beams (ventilation shutters) in the middle of the connecting beams 108 are buried in the ore materials 100.

All the wheel pairs 109b of the trolley 109 are positioned on the annular track 110, the annular track 110 is installed on the base frame 101 through the track frame 110b, the annular track 110 is formed with a discharging bend 110a at the discharging position, as shown in fig. 7, during the process that the trolley 108 passes through the section of the bent discharging bend 110a, the trolley 108 descends to discharge the materials in the annular cooler by itself.

As shown in fig. 3, the inner baffles 111 are installed between the inner longitudinal wing plates 108b of the adjacent connecting beams 108, all the inner baffles 111 form the inner ring of the annular cooler, the outer baffles 112 are installed between the outer longitudinal wing plates 108b of the adjacent connecting beams 108, and all the outer baffles 112 form the outer ring of the annular cooler. The bottom of each inner baffle 111 is welded or bolted with an inner sealing plate 111a for sealing the inner side of the corresponding trolley 109, and similarly, the bottom of each outer baffle 112 is welded or bolted with an outer sealing plate 112a for sealing the outer side of the corresponding trolley 109. The upper surface of each trolley frame 109 is provided with a plurality of steps all around, each step is correspondingly provided with a sealing strip, namely the discharge plate 109d is positioned in the middle of the trolley frame 109a, and the trolley frame 109a is reserved with the positions for arranging the steps all around.

As shown in fig. 8, the inner and outer seals of each trolley are arranged such that, for the inner side of the trolley 109, as shown in fig. 10, the inner seal strip i 111b located at the innermost layer is mounted at the bottommost part of the inner seal plate 111a by the inner press plate i 111c and the bolt 133 (a strip hole through which the bolt 133 passes is reserved on the inner seal strip i 111b, the same applies hereinafter), the inner seal strip ii located at the second layer is mounted on the inner mount ii by the inner press plate ii and the bolt, the inner mount ii is mounted on the inner seal plate 111a by the bolt, and so on, the inner seal strip N111d located at the nth layer is mounted on the inner mount N111f by the inner press plate N111e and the bolt 133, and the inner mount N111f is mounted on the inner seal plate 111a by the bolt 133, so that the inner seal strips of each layer are independently arranged for easy disassembly, and normally, the inner seal strips are, according to the actual situation. Similarly, for the outer side of the trolley 109, as shown in fig. 9, the outer seal i 112b located at the innermost layer is mounted on the outer sealing plate 112a through the outer pressing plate i 112c and the bolt 133, the outer seal ii located at the second layer is mounted on the outer fixing frame ii through the outer pressing plate ii and the bolt, the outer fixing frame ii is mounted on the outer sealing plate 112a through the bolt, and so on, the outer seal N112d located at the nth layer is mounted on the outer fixing frame N112f through the outer pressing plate N112e and the bolt 133, and the outer fixing frame N112f is mounted on the outer sealing plate 112a through the bolt 133, so that the outer seals of each layer are independently arranged and are convenient to detach, and in general, the outer seals are also arranged at two to three layers, which is determined according to actual conditions.

As shown in fig. 5, a sealing plate i 108c for sealing the rear side of the preceding trolley and a sealing plate ii 108d for sealing the front side of the following trolley are oppositely disposed on the bottom surface of each connecting beam 108. For the front side of the trolley 109, a front side sealing strip I positioned on the innermost layer is arranged on a sealing plate II 108d on the bottom surface of a front connecting beam 108I through a front side pressing plate I and a bolt; the front side sealing strip II on the second layer is arranged on a front side fixing frame II through a front side pressure plate II and a bolt, and the front side fixing frame II is arranged on a sealing plate II 108d on the bottom surface of the front connecting beam 108I through a bolt; by analogy, the front side sealing strip N on the Nth layer is arranged on the front side fixing frame N through the front side pressing plate N and the bolt, and the front side fixing frame N is arranged on the sealing plate II 108d on the bottom surface of the front connecting beam 108I through the bolt; the front side sealing strip of every layer all is independent setting like this, convenient dismantlement, under the general condition, the front side sealing strip set up two to the three-layer can, according to actual conditions and decide. Similarly, for the rear side of the trolley 109, the rear side sealing strip I positioned at the innermost layer is arranged on the sealing plate I108 c on the bottom surface of the rear connecting beam 108 II through the rear side pressing plate I and the bolt; the rear side sealing strip II on the second layer is arranged on a rear side fixing frame II through a rear side pressing plate II and a bolt, the rear side fixing frame II is arranged on a sealing plate I108 c on the bottom surface of a rear connecting beam 108 II through a bolt, and by analogy, the rear side sealing strip N on the Nth layer is arranged on a rear side fixing frame N through a rear side pressing plate N and a bolt, and the rear side fixing frame N is arranged on the sealing plate I108 c on the bottom surface of the rear connecting beam 108 II through a bolt; the rear side sealing strip of every layer all is independent setting like this, convenient dismantlement, under the general condition, the rear side sealing strip set up two to the three-layer can, according to actual conditions and decide.

The inner side sealing strip and the outer side sealing strip which are arranged in multiple layers and the front side sealing strip and the rear side sealing strip which are arranged in multiple layers can almost completely seal the periphery of the trolley, cold air cannot flow out of a space unit formed by the trolley, the front connecting beam, the rear connecting beam and the left side baffle and the right side baffle, and the cold air is fully utilized. In addition, because the inner side sealing strip I111 b, the outer side sealing strip I112 b, the front side sealing strip I and the rear side sealing strip I are closest to the periphery of the trolley, high-temperature outward radiation is basically blocked, the service life is relatively short, but the inner side sealing strip, the outer side sealing strip, the front side sealing strip and the outer side sealing strip outside the second layer are basically not influenced by high temperature, and the service life is very long. And moreover, the sealing strips are matched with the corresponding steps, so that the sealing efficiency is high, and air leakage can be avoided. Each layer is independently arranged, and the disassembly and the replacement are convenient. The bottom edge of the sealing strip is in a hollow tubular shape, and the contact area between the sealing strip and the step is increased after extrusion, so that better sealing is realized. Each sealing strip is provided with a plurality of strip-shaped holes, and the position of each sealing strip is adjusted up and down through a corresponding adjusting device.

As shown in fig. 1a, an annular air duct 113 is disposed on the bottom frame 101 at the periphery of the outer idler ring 107, water-containing interlayers 113a are disposed on both sides of the annular air duct 113, an air duct upper cover 114 capable of rotating (rotating synchronously with the rotating mechanism) is disposed on the annular air duct 113, and lower annular sealing plates 113b are disposed on both sides of the air duct upper cover 114 and inserted into the water-containing interlayers 113a on both sides; the water containing interlayer 113a mainly has the sealing function, and the air duct upper cover 114 rotates with the trolley, so that after the air duct upper cover 114 is inserted into the water containing interlayer 113a through the lower annular sealing plates 113b on the two sides, cold air in the annular air duct 113 cannot leak in the rotating process of the air duct upper cover 114; secondly, the water on both sides of the annular air duct 113 will also pre-cool the passing air.

As shown in fig. 1a, the duct upper cover 114 is connected to the air inlet end (outer port) of each connecting beam 108 through a plurality of main ducts 115, and the inner port of each connecting beam 108 is closed; as shown in fig. 4, after the cool air enters from the air inlet end of the connecting beam 108, a part of the cool air flows into the front and rear trolleys from the ventilation louver panes on both sides of the triangular cross beam 108a, a part of the cool air enters the inner side baffle from the side opening of the beam body and flows out from the ventilation louver on the lower part of the inner side baffle, and the other part of the cool air enters the outer side baffle from the side opening of the beam body and flows out from the ventilation louver on the lower part of the; namely, air is fed into each trolley all around, and the periphery of the bottom of each trolley is sealed.

As shown in fig. 1, the bottom surface of the annular air duct 113 is connected to the air cooler 117 through a plurality of air ducts 117a, and generally, one main air duct corresponds to one air cooler.

As shown in figures 1 and 1a, a circle of frame columns are arranged on the inner side and the outer side of the circular cooler, and an annular flue gas cover 123 is erected between the two circles of frame columns. Annular basin 125 in the round is installed jointly to the round inside shield 111 outside, and every piece inside shield corresponds annular basin in one section, and on the same way, the outer annular basin 127 of round is installed jointly to the round outside shield 112 outside, and every piece outside shield corresponds the outer annular basin of one section. An inner water tank upper cover 126 and an outer water tank upper cover 128 are respectively welded at the inner side bottom and the outer side bottom of the annular flue gas cover 123, and an upper annular sealing plate 129 at the bottom surfaces of the inner water tank upper cover 126 and the outer water tank upper cover 128 is respectively inserted into the inner annular water tank 125 and the outer annular water tank 127. The effect of interior annular basin 125 and outer annular basin 127 is exactly sealed, and interior annular basin 125 and outer annular basin 127 carry out the rotation along with inboard baffle 111 and outside baffle 112 with the platform truck respectively, and interior basin upper cover 126 and outer basin upper cover 128 are then fixed motionless with annular flue gas cover 123, through the effect of last annular seal plate 129, guarantee the sealing to flue gas in the annular flue gas cover at rotatory in-process, prevent that the flue gas from revealing.

As shown in fig. 11, the inside of the annular flue gas hood 123 is divided into a high-temperature flue gas section, a medium-temperature flue gas section and a low-temperature flue gas section by a plurality of partition plates 124, and a medium-temperature and high-temperature discharge flue 134 located in the high-temperature flue gas section and the medium-temperature flue gas section is connected with a hot air end of a flue gas recovery and heat exchange device 136. The annular air duct 113 (corresponding to the areas of the high-temperature flue gas section and the medium-temperature flue gas section) is also connected with a circulating cold air pipe 130, and the circulating cold air pipe 130 is connected with a cold air end of the flue gas recovery heat exchange device 136. In the recycling process, the flue gas at the middle-high temperature section enters the flue gas recycling heat exchange device through the middle-high temperature discharge flue 134, and after the flue gas recycling heat exchange, the residual cold air enters the annular cooler through the annular air duct 113 through the cold air circulating pipe 130 for recycling. The pipeline of each air cooler 117 is provided with a valve, in general, circulating cold air is introduced into the middle-high temperature section corresponding to the annular air duct, and the low-temperature section area corresponding to the annular air duct is supplied with air through an independent air cooler. The flue gas at the low-temperature section in the circular cooler is collected and recycled through the independent low-temperature section discharge flue 135. Furthermore, the section of the annular flue gas cover 123 is arc-shaped or trapezoid, so that the discharge resistance of the flue gas is reduced.

During specific work, the inner side baffle plates 111, the outer side baffle plates 112, the connecting beam 108, the trolley 109 and the inner rotary frame 102, the outer rotary frame 103 form a rotating mechanism for containing ore materials 100 together, the rotating mechanism is fixed between the inner rotary frame 102 and the outer rotary frame 103 through the connecting beam 108 to form a whole, the inner rotary frame 102 is positioned on the inner roller supporting ring 106 to rotate, and the outer rotary frame 103 is positioned on the outer roller supporting ring 107 to rotate. A plurality of motors 120 located inside move synchronously, that is, a plurality of driving gears 122 rotate synchronously, and together drive the inner revolving frame 102 to rotate, so as to drive the trolley 109 to rotate on the circular track 110. Each trolley 109 is sealed through the sealing strips distributed in a multi-layer stepped mode around the trolley 109 to prevent air leakage, the annular rail 110 is provided with a discharging curved rail 110a, a discharging opening 132 is formed in the discharging curved rail 110a correspondingly, the trolley 109 runs to the discharging curved rail 110a, and drives into the straight rail again after discharging is completed, and the trolley is located between the inner side baffle plate, the outer side baffle plate, the front connecting beam and the rear connecting beam again to be in contact sealing with the multi-layer sealing strips around the trolley. After the rotary mechanism is fed from a charging port 131 (the charging port is positioned obliquely above the discharging curved rail) positioned above in the process of continuously rotating on the annular rail 110 (the air duct upper cover 114 synchronously rotates along with the rotary mechanism under the connection of the main air duct 115), an air supply system is started, cold air is fed by a plurality of air coolers 117 or fed through a circulating cold air pipe 130, the annular air duct 113 is sealed in a rotating mode through a lower annular sealing plate to prevent air leakage, and the cold air enters the annular air cooler through the main air duct 115 and a connecting beam to cool the materials. An annular flue gas cover 123 is arranged on the rotating mechanism, and two sides of the annular flue gas cover 123 are sealed through an inner annular water tank 125 and an outer annular water tank 127 to prevent flue gas leakage. After the rotating mechanism rotates for one circle, the cold air cools the material to the preset temperature, when the trolley 109 passes through the bent discharging curved rail 110a, the material falls into the discharging opening 132 under the action of gravity, then the trolley 109 moves to the plane rail, the material is charged through the charging opening 131, and the continuous cooling operation is realized repeatedly.

Note: the utility model discloses well be located interior revolving frame one side and show as the cold machine of ring "inboard", lie in outer revolving frame one side and show the cold machine of ring "the outside", the platform truck traffic direction is "front side" in the cold machine of ring, otherwise is "rear side".

The technical solution obtained by the present invention through logic analysis and reasoning on the basis of the existing technology should be within the scope of the present invention.

Claims (5)

1. An N-stage stepped sealing and 360-degree flue gas recovery system of a circular cooler trolley comprises a plurality of connecting beams (108) positioned between an inner revolving frame (102) and an outer revolving frame (103); a trolley (109) is arranged between the adjacent connecting beams (108), the trolley (109) comprises a trolley frame (109 a), the front part of the trolley frame (109 a) is provided with a wheel pair (109 b), and the rear part of the trolley frame is connected with a hinge seat (108 e) on the bottom surface of the connecting beam (108) through a hinge (109 e); an inner baffle (111) is arranged between the longitudinal wing plates (108 b) of the adjacent connecting beams (108) positioned at the inner side, and an outer baffle (112) is arranged between the longitudinal wing plates (108 b) of the adjacent connecting beams (108) positioned at the outer side;

the method is characterized in that: the bottom of each inner baffle plate (111) is connected with an inner side sealing plate (111 a) used for sealing the inner side of the corresponding trolley (109), the bottom of each outer side baffle plate (112) is connected with an outer side sealing plate (112 a) used for sealing the outer side of the corresponding trolley (109), and the bottom surface of each connecting beam (108) is oppositely provided with a sealing plate I (108 c) used for sealing the rear side of the previous trolley and a sealing plate II (108 d) used for sealing the front side of the next trolley;

a discharge plate (109 d) is fixed on the trolley frame (109 a) through a support plate (109 c), multiple steps are respectively arranged on the periphery of the upper surface of the trolley frame (109 a), and each step is correspondingly provided with a sealing strip; then, for the inner side of the trolley (109), the inner side sealing strip I (111 b) positioned at the innermost layer is installed on the inner side sealing plate (111 a) through an inner side pressing plate I (111 c) and a bolt, the inner side sealing strip N (111 d) positioned at the Nth layer is installed on an inner side fixing frame N (111 f) through an inner side pressing plate N (111 e) and a bolt, and the inner side fixing frame N (111 f) is installed on the inner side sealing plate (111 a) through a bolt; similarly, for the outer side of the trolley (109), the outer sealing strip I (112 b) positioned on the innermost layer is installed on the outer sealing plate (112 a) through an outer pressing plate I (112 c) and a bolt, the outer sealing strip N (112 d) positioned on the Nth layer is installed on an outer fixing frame N (112 f) through an outer pressing plate N (112 e) and a bolt, and the outer fixing frame N (112 f) is installed on the outer sealing plate (112 a) through a bolt; similarly, for the front side of the trolley (109), the front side sealing strip I positioned on the innermost layer is installed on a sealing plate II (108 d) on the bottom surface of the front connecting beam through a front side pressing plate I and a bolt, the front side sealing strip N positioned on the Nth layer is installed on a front side fixing frame N through a front side pressing plate N and a bolt, and the front side fixing frame N is installed on the sealing plate II (108 d) on the bottom surface of the front connecting beam through a bolt; similarly, for the rear side of the trolley (109), the rear side sealing strip I positioned on the innermost layer is installed on a sealing plate I (108 c) on the bottom surface of the rear connecting beam through a rear side pressing plate I and a bolt, the rear side sealing strip N positioned on the Nth layer is installed on a rear side fixing frame N through a rear side pressing plate N and a bolt, and the rear side fixing frame N is installed on the sealing plate I (108 c) on the bottom surface of the rear connecting beam through a bolt;

the air inlet end of each connecting beam (108) is connected with an annular air duct upper cover (114) through a main air duct (115), the air duct upper cover (114) is positioned above the annular air duct (113), water containing interlayers (113 a) are respectively arranged on two sides of the annular air duct (113), and lower annular sealing plates (113 b) are respectively arranged on two sides of the air duct upper cover (114) and inserted into the water containing interlayers (113 a) on two sides; the bottom surface of the annular air duct (113) is respectively connected with a plurality of air coolers (117) through air pipes (117 a);

the outer upper parts of all the inner side baffles (111) are jointly provided with an inner annular water tank (125), an inner water tank upper cover (126) is arranged above the inner annular water tank (125), and an upper annular sealing plate (129) at the bottom surface of the inner water tank upper cover (126) is inserted into the inner annular water tank (125); an outer annular water tank (127) is jointly installed at the outer upper parts of all the outer side baffles (112), an outer water tank upper cover (128) is arranged above the outer annular water tank (127), and an upper annular sealing plate (129) at the bottom surface of the outer water tank upper cover (128) is inserted into the outer annular water tank (127); the inner water tank upper cover (126) and the outer water tank upper cover (128) are respectively located at the bottom of the inner side and the outer side of the annular flue gas cover (123), a charging hole (131) is reserved on the annular flue gas cover (123), and a discharge flue is arranged on the annular flue gas cover (123).

2. The annular cooler trolley N-level stepped sealing and 360-degree flue gas recovery system according to claim 1, wherein: the annular flue gas hood (123) is internally divided into a high-temperature flue gas section, a medium-temperature flue gas section and a low-temperature flue gas section by a partition plate (124), and a medium-high temperature discharge flue (134) positioned in the high-temperature flue gas section and the medium-temperature flue gas section is connected with a hot air end of a flue gas recovery heat exchange device (136).

3. The annular cooler trolley N-level stepped sealing and 360-degree flue gas recovery system according to claim 2, wherein: the annular air duct (113) is connected with a circulating cold air pipe (130), and the circulating cold air pipe (130) is connected with a cold air end of the flue gas recovery heat exchange equipment (136).

4. The annular cooler trolley N-level stepped sealing and 360-degree flue gas recovery system according to claim 2, wherein: the section of the annular flue gas hood (123) is arc-shaped or trapezoid.

5. The annular cooler trolley N-level stepped sealing and 360-degree flue gas recovery system according to claim 1, wherein: each sealing strip is adjusted up and down through a corresponding adjusting device.

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