Improved integrated double-flue floor sintering cooling system

Abstract

An improved integrated double-flue floor sintering cooling system comprises a sintering machine body, a bulk material belt conveyor, a large flue, a first scraper conveyor and a collecting device. The bulk material belt conveyor, the large flue and the first scraper conveyor are all arranged below the sintering machine body; a bulk material belt conveyor, a large flue and a first scraper conveyor are sequentially arranged in the length direction of the sintering machine body from top to bottom in an extending mode. The large flue is of a rectangular structure; the bulk material belt conveyor is arranged on the top plane of the large flue, and the bottom of the sintering machine body is connected to the bulk material belt conveyor through a first chute; the bottom of the large flue is connected with a first scraper conveyer; a discharge port of the bulk material belt conveyor and a discharge port of the first scraper conveyor are both connected with a collecting device. The bulk material belt conveyor is arranged at the top of the large flue, the distance between the chute and the belt conveyor is reduced, and meanwhile, the first chute is obliquely arranged, so that the occupied space is reduced, and the impact on the conveyor when bulk materials fall is reduced.

Description

Technical Field

[0001] The utility model relates to a double-flue floor-standing sintering cooling system, in particular to an improved integrated double-flue floor-standing sintering cooling system, belonging to the technical field of metallurgical sintering equipment. Background Art

[0002] In the existing sintering machine plant, the large flue is generally 7 meters above the ground. The installation position of the large flue is too high, which increases the elevation of the main plant and the corresponding connecting facilities and equipment. The plant is high and the large flue and the corresponding equipment are difficult to install. A double-layer ash unloading valve and a corresponding leakage trough need to be installed under the large flue, which increases the elevation of the plant and the corresponding connecting facilities and equipment as a whole. Not only does it increase the project cost, but the existence of the double-layer ash unloading valve also increases the failure points and increases the overall air leakage rate of the sintering machine. The sintering machine has many failure points and air leakage points, and the sintering machine has poor stability and sealing.

[0003] The company has proposed a patent with the announcement number "CN113432445A" A floor-standing large flue and a main plant of a sintering machine. The floor-standing large flue includes a large flue and a dust transfer and collection mechanism arranged on the dust output side of the bottom of the large flue; wherein, a drop hole for dust to fall is provided at the bottom of the large flue; the dust transfer and collection mechanism is used to transfer and collect the dust discharged from the drop hole of the large flue, and the dust transfer and collection mechanism includes a sealed shell and a dust conveyor arranged along the extension direction of the large flue, a sealed channel is provided in the sealed shell, the dust conveyor is arranged in the sealed channel, and at least one end of the sealed shell is provided with a temporary storage box for collecting dust, which is passed through the dust conveyor The dust discharged from the drop hole of the large flue is transferred to the temporary storage box for collection. However, in this patent, the bulk material still needs to be transported to the belt conveyor through a large chute. The chute not only takes up a lot of space in the main plant, but is also inconvenient for maintenance and has poor stability. The bulk material in the large flue is transported by a scraper conveyor and then transported away by the corresponding belt. The bulk material in the small grid funnel under the sintering machine trolley is transported by another bulk material belt. There is no further optimization space for the two transfer routes. The main plant has a high height due to the high height of the large flue, resulting in a high project cost. The problem of multiple failure points and air leakage points caused by the double-layer ash unloading valve and its corresponding chute for unloading ash under the large flue is not solved. Utility Model Content

[0004] In view of the fact that the dust transmission distance between the bottom of the sintering machine body and the conveyor in the prior art is too long, which is inconvenient for maintenance and has poor stability. When the bulk material falls, it has a large impact on the ground belt, which is easy to damage the belt conveyor. The utility model provides an improved integrated double-flue floor-standing sintering cooling system, including a sintering machine body, a bulk material belt conveyor, a large flue, a first scraper conveyor, and a collecting device. Along the length direction of the sintering machine body, a bulk material belt conveyor, a large flue, and a first scraper conveyor are sequentially extended from top to bottom. By setting the large flue as a rectangular structure, the floor space of the plant is reduced. At the same time, it is convenient for the bulk material belt conveyor to be set on the top plane of the large flue. The bottom of the sintering machine body is connected to the bulk material belt conveyor through a first chute. The distance between the sintering machine body and the bulk material belt conveyor is reduced, and the first chute is tilted to form a buffer zone for the dust falling from the sintering machine body, further reducing the impact of dust on the bulk material belt conveyor. The entire system process is more compact, reasonable, smooth, easy to maintain, and has strong stability.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] An improved integrated double-flue floor-standing sintering cooling system includes a sintering machine body, a bulk material belt conveyor, a large flue, a first scraper conveyor, and a collecting device. The bulk material belt conveyor, the large flue, and the first scraper conveyor are all arranged below the sintering machine body. Along the length direction of the sintering machine body, the bulk material belt conveyor, the large flue, and the first scraper conveyor are sequentially extended from top to bottom. The large flue is a rectangular structure. The bulk material belt conveyor is arranged on the top plane of the large flue, and the bottom of the sintering machine body is connected to the bulk material belt conveyor through a first chute. The bottom of the large flue is connected to the first scraper conveyor. The discharge port of the bulk material belt conveyor and the discharge port of the first scraper conveyor are both connected to the collecting device.

[0007] In the utility model, the sintering machine body also includes a funnel. A plurality of funnels are arranged below the sintering machine body, and the plurality of funnels are connected to both sides of the bottom of the sintering machine body. The discharge ports of the plurality of funnels are all provided with a first chute, and are connected to the top of the bulk material belt conveyor through the first chute, and the first chute is arranged obliquely. Preferably, along the direction of the material, the plurality of funnels are arranged extending from the head of the sintering machine body to the tail.

[0008] Preferably, the first chute is in a stepped shape.

[0009] In the utility model, the large flue includes a first flue and a second flue that are symmetrically arranged. The first flue and the second flue are rectangular structures that are wide at the top and narrow at the bottom. The bottoms of the first flue and the second flue are both connected to the first scraper conveyor. The first flue and the second flue are connected by connecting ribs. A grille plate is provided on the top of the connection between the first flue and the second flue. A connecting pipe port is provided on the top of the first flue and the second flue, and the connecting pipe ports on the first flue and the second flue are connected to the bellows of the sintering machine body through a bellows branch pipe. The flue gas outlets of the first flue and the second flue are connected to the electrostatic precipitator.

[0010] Preferably, the length of the connecting rib is 80-600 cm, preferably 100-500 cm, and more preferably 200-300 cm.

[0011] The bulk material belt conveyor of the system is arranged between the first flue and the second flue and is located on the top plane of the first flue or the second flue. The interval between the wind box branch pipe and the bulk material belt conveyor is 65-150 cm, preferably 70-100 cm, and more preferably 80-90 cm.

[0012] Preferably, a bracket is provided on the grid plate, and the bracket is connected to the first chute.

[0013] Dust discharge holes are provided at the bottom of the first flue and the second flue. The number of the dust discharge holes is multiple and the multiple dust discharge holes are arranged at intervals along the extension direction of the first flue and the second flue. The first scraper conveyor is connected to the first flue and the second flue through the dust discharge holes. Support pillars are provided on both sides of the bottom of the first flue and the second flue for support.

[0014] In the utility model, the collecting device includes a second chute, a second scraper conveyor, and a belt conveyor. The feed end of the second chute is connected to the bulk belt conveyor, the discharge end of the second chute is connected to the feed end of the belt conveyor, and the second chute is inclined. The second scraper conveyor is arranged below the first scraper conveyor, and the discharge end of the second scraper conveyor is connected to the feed end of the belt conveyor.

[0015] Preferably, the second chute is in a stepped shape.

[0016] In the utility model, the collection device further includes a buffer bin, a third chute, and a double-layer ash discharge valve. The feed port of the buffer bin is connected to the discharge port of the first scraper conveyor. The discharge port of the buffer bin is provided with a double-layer ash discharge valve. The discharge port of the double-layer ash discharge valve is sealed and connected to the feed port of the third chute. The discharge port of the third chute is connected to the feed port of the second scraper conveyor, and the third chute is inclined. Preferably, the third chute is in a stepped shape.

[0017] Preferably, the feed port of the buffer bin is sealed to the discharge port of the first scraper conveyor.

[0018] In the utility model, the system further comprises a sintering machine ore bucket. The sintering machine ore bucket is arranged at the discharge port of the sintering machine body.

[0019] The system further comprises a feeding chute. The feeding chute is arranged below the ore bucket of the sintering machine, a feeding port of the feeding chute is connected to a feeding port of the ore bucket of the sintering machine, and a discharging port of the feeding chute is connected to a second chute.

[0020] In the utility model, the system also includes an annular cooler. The annular cooler is arranged on one side of the feeding chute. The feeding end of the annular cooler is connected to the discharge port of the ore bucket of the sintering machine.

[0021] In the prior art, bulk materials are transported to the belt conveyor through a large-height chute. The chute not only takes up a lot of space in the main plant, but is also inconvenient for maintenance and lacks stability. When the bulk materials fall, they have a large impact on the ground belt, which can easily damage the belt conveyor. The bulk materials in the large flue and the bulk materials in the hopper under the sintering machine body are not transported in a unified manner, and the reverse transportation process is complicated, the failure points are high, the equipment operation cost is high, and the plant occupies a large area. On the one hand, the utility model sets the bulk material belt conveyor on the top plane of the large flue, reducing the distance between the sintering machine body and the bulk material belt conveyor. At the same time, the sintering machine body and the bulk material belt conveyor are connected through an inclined first chute to form a material drop buffer belt, which further reduces the impact of dust falling on the bulk material belt conveyor and greatly improves the service life of the equipment. On the other hand, the bulk materials in the bulk material belt conveyor and the large flue are transported centrally through a collecting device, which improves transportation efficiency, reduces failure points, and reduces equipment costs.

[0022] In the utility model, the improved integrated double flue floor sintering cooling system is generally set to three layers but not limited to three layers, and can be set to a multi-layer structure, which is one layer, two layers, and three layers from bottom to top. The system includes a sintering machine body, a bulk material belt conveyor, a large flue, a first scraper conveyor, and a collecting device. Among them, the sintering machine body is arranged on the second and third floors, and the bulk material belt conveyor, the large flue, the first scraper conveyor, and the collecting device are arranged on the first floor. Along the length direction of the sintering machine body, below the sintering machine body, a bulk material belt conveyor, a large flue, and a first scraper conveyor are sequentially extended from top to bottom, and the lengths of the four can be consistent, which is convenient for the recovery of flue gas and dust from the sintering machine body. The large flue is a rectangular structure (wide at the top and narrow at the bottom), and the flue gas outlet of the large flue is connected to the electrostatic precipitator (not shown in the figure), and the subsequent desulfurization and denitrification processes are carried out after dust removal. The bulk belt conveyor is set on the top plane of the large flue. The bottom of the sintering machine body is connected to the bulk belt conveyor through the first chute. The first chute is inclined to form an inclined buffer zone for the dust carried on the crawler of the sintering machine body. The first scraper conveyor is set at the bottom of the large flue to collect and transport the dust in the large flue. The discharge port of the bulk belt conveyor and the discharge port of the first scraper conveyor are both connected to the collection device, and the dust materials collected by the bulk belt conveyor and the first scraper conveyor are transported in a centralized manner, which reduces the establishment of transportation lines and fully recycles the dust.

[0023] In the utility model, a plurality of funnels are arranged below the sintering machine body, and the plurality of funnels are connected to both sides of the bottom of the sintering machine body. The number of the funnels is set according to the length of the sintering machine body, and is arranged from the head of the sintering machine body to the tail. The discharge ports of the plurality of chutes are all provided with a first chute, and are connected to the top of the bulk material belt conveyor through the first chute. In addition to being inclined, the first chute can also be set in a stepped shape, the main purpose of which is to form a buffer zone for the falling of dust and reduce the falling speed of dust.

[0024] In the utility model, the large flue includes a symmetrically arranged first flue and a second flue, which are made of concrete, which is not only high in strength but also low in cost, and the outer periphery of the flue body is coated with a heat insulation layer. The first flue and the second flue are rectangular structures that are wide at the top and narrow at the bottom, and the two sides are vertical. Dust dropping holes are provided at the bottom of the first flue and the second flue to prevent dust from accumulating in the flue and blocking the flue. There are multiple dust dropping holes, and the number of dust dropping holes can be set according to the length of the first flue and the second flue, extending from the head of the first flue and the second flue to the tail. The first scraper conveyor is connected to the first flue and the second flue through the dust dropping holes, and the dust in the first flue and the second flue is collected and transported to the collection device through the first scraper conveyor. And pillars for support are provided on both sides of the bottom of the first flue and the second flue.

[0025] In the utility model, a gap of 80mm-600mm is set between the first flue and the second flue (not marked in the figure), which is used to set connecting ribs (the length of the connecting ribs is set according to the distance of the gap, and the concrete material connects the two flue bodies to further improve stability). Since the flue gas temperature in the flue is close to 180 degrees Celsius, the flue body will expand to a certain extent after being heated. The connecting ribs are set to leave a certain distance between the first flue and the second flue, wherein the length of the connecting ribs is 80-600cm, preferably 100-500cm, and more preferably 200-300cm. A grid plate is set on the top of the connection between the first flue and the second flue. When the grid is laid, the grid is flush with the top of the flue body. A bracket is set on the grid plate, and the bracket is used to support the first chute to prevent the gravity of the falling dust from causing the first chute to deform. Connection ports are provided at the tops of the first flue and the second flue, and the interface pipes are constructed together when the flue body is built. Compared with the traditional method of drilling holes in the flue and inserting branch pipes after the flue body is constructed, the sealing is better and the strength of the flue body is not affected. The connection port is connected to the bellows of the sintering machine body through the bellows branch pipe. The flue gas of the sintering machine body is collected through the first flue and the second flue, and the large dust particles are first filtered out and collected and transported by the first scraper dust conveyor. The flue gas is sent to the electrostatic precipitator for dust removal and then to the desulfurization and denitrification system.

[0026] In the utility model, the bulk material belt conveyor is arranged between the first flue and the second flue. And it is located on the top plane of the first flue or the second flue, so that the height of the first chute can be greatly reduced, the height difference is greatly reduced, and it will no longer occupy a large amount of factory space. The interval between the bellows branch pipe and the bulk material belt conveyor is greater than 70cm, ensuring the space for people to pass through, so as to facilitate the maintenance of the equipment, preferably 65-150cm, more preferably 70-100cm, and most preferably 80-90cm. By shortening the distance between the sintering machine body and the bulk material belt conveyor, the bulk material routing planning in the hopper received by the bulk material belt conveyor is more reasonable, and the bulk material falling on the bulk material belt conveyor has less impact on the belt surface of the belt conveyor, which is conducive to extending the service life of the equipment.

[0027] In the utility model, the collecting device includes a second chute, a second scraper conveyor, a belt conveyor, a buffer bin, a third chute, and a double-layer ash discharge valve. Among them, in addition to being inclined, the second chute and the third chute can also be set in a stepped shape, the main purpose of which is to form a buffer zone for the dust to fall and reduce the dust falling speed. The feed end of the second chute is connected to the discharge end of the bulk belt conveyor, and the dust collected by the bulk belt conveyor is sent to the belt conveyor. When the bulk belt conveyor is arranged on the large flue, there is enough height difference to ensure the angle of the second chute, and the material can be smoothly transported through the chute, and no longer needs to be transported through other processes to enter the next process. A buffer bin is set below the discharge port of the first scraper conveyor to receive large dust particles in the large flue. The feed port of the buffer bin is sealed with the discharge port of the first scraper conveyor. When there is material in the buffer bin, the scraper conveyor will not leak air and raise dust due to unloading through the sealed connection. A double-layer ash discharge valve is provided at the discharge port of the buffer bin to prevent dust. The discharge port of the double-layer ash discharge valve is connected to the feed port of the third chute (through a sealed connection, dust is further reduced and air leakage is avoided). The discharge port of the third chute is connected to the feed port of the second scraper conveyor, and the discharge end of the second scraper conveyor is connected to the feed end of the belt conveyor. The bulk materials in the bulk belt conveyor and the large flue are transported centrally through the collection device, which improves transportation efficiency, reduces failure points, and reduces equipment costs.

[0028] In the utility model, the system also includes a sintering machine ore bucket, a feeding chute, and a ring cooler. The sintering machine ore bucket is arranged at the discharge port of the sintering machine body, which can avoid dust generation when the sintering machine body is discharged. The feeding chute is arranged below the sintering machine ore bucket, and is used to collect scattered materials. The feeding port of the feeding chute is connected to the discharge port of the sintering machine ore bucket, and the discharge port of the feeding chute is connected to the second chute. The ring cooler is arranged on one side of the feeding chute, and the feeding end of the ring cooler is connected to the sintering machine ore bucket, which is used to cool and transport the sintered ore.

[0029] Compared with the prior art, the beneficial technical effects of the utility model are as follows:

[0030] 1. In the utility model, a bulk material belt conveyor, a large flue, and a first scraper conveyor are sequentially arranged along the length direction of the sintering machine body and below the sintering machine body, extending from top to bottom. By setting the large flue as a rectangular structure, the floor space of the plant is reduced. At the same time, it is convenient for the bulk material belt conveyor to be set on the top plane of the large flue, avoiding the high-height chute from being transported to the bulk material belt conveyor. This can effectively solve the problem of large impact of the ground tape on the bulk material falling due to the large drop, which can easily damage the belt conveyor. An inclined first chute is set at the bottom of the sintering machine body to connect with the bulk material belt conveyor, or the first chute is set in a stepped shape to form a buffer zone for the dust falling on the sintering machine body, further reducing the impact of dust on the bulk material belt conveyor. The entire system process is more reasonable, smooth, and stable, which can save the cost of plant construction.

[0031] 2. In the utility model, the bulk materials in the hopper under the sintering machine body and in the large flue are transported centrally through a collecting device, which reduces the material transport process, can reduce failure points, reduce equipment costs, and can reduce land occupation, which is beneficial to the subsequent production of the factory.

[0032] 3. In the utility model, the distance between the bulk belt conveyor and the bellows branch pipe is set to ensure space for people to inspect and repair the equipment. At the same time, the feed port of the buffer bin and the discharge port of the first scraper conveyor, and the discharge port of the double-layer ash discharge valve and the feed port of the third chute are all sealed. The sealed connection can reduce dust, and avoid failures and air leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 The utility model is a schematic diagram of the structure of an improved integrated double-flue floor-standing sintering cooling system.

[0034] Figure 2 It is a schematic diagram of the cross-sectional structure of the improved integrated double-flue floor-standing sintering cooling system of the utility model.

[0035] Figure 3 It is a structural schematic diagram of the large flue of the utility model.

[0036] Figure 4 It is a structural schematic diagram of the collecting device of the utility model.

[0037] Figure numerals: 1: sintering machine body; 101: first chute; 102: funnel; 2: bulk material belt conveyor; 3: large flue; 301: first flue; 302: second flue; 4: first scraper conveyor; 5: collecting device; 501: second chute; 502: second scraper conveyor; 503: belt conveyor; 504: buffer bin; 505: third chute; 506: double-layer ash discharge valve; 6: connecting rib; 7: grille plate; 8: connecting pipe port; 9: bellows branch pipe; 10: bracket; 11: dust drop hole; 12: support; 13: sintering machine ore bucket; 14: feeding chute; 15: ring cooler. DETAILED DESCRIPTION

[0038] The technical solution of the utility model is illustrated below, and the scope of protection requested for the utility model includes but is not limited to the following embodiments.

[0039] An improved integrated double-flue floor-standing sintering cooling system comprises a sintering machine body 1, a bulk material belt conveyor 2, a large flue 3, a first scraper conveyor 4, and a collecting device 5. The bulk material belt conveyor 2, the large flue 3, and the first scraper conveyor 4 are all arranged below the sintering machine body 1. Along the length direction of the sintering machine body 1, the bulk material belt conveyor 2, the large flue 3, and the first scraper conveyor 4 are sequentially extended from top to bottom. The large flue 3 is a rectangular structure. The bulk material belt conveyor 2 is arranged on the top plane of the large flue 3, and the bottom of the sintering machine body 1 is connected to the bulk material belt conveyor 2 through a first chute 101. The bottom of the large flue 3 is connected to the first scraper conveyor 4. The discharge port of the bulk material belt conveyor 2 and the discharge port of the first scraper conveyor 4 are both connected to the collecting device 5.

[0040] In the present invention, the sintering machine body 1 further includes a hopper 102. A plurality of hoppers 102 are arranged below the sintering machine body 1, and the plurality of hoppers 102 are connected to both sides of the bottom of the sintering machine body 1. The discharge ports of the plurality of hoppers 102 are all provided with a first chute 101, and are connected to the top of the bulk material belt conveyor 2 through the first chute 101, and the first chute 101 is inclined. Along the direction of the material, the plurality of hoppers 102 are arranged from the head of the sintering machine body 1 to the tail.

[0041] In the present invention, the first chute 101 is in a stepped shape.

[0042] In the utility model, the large flue 3 includes a first flue 301 and a second flue 302 which are symmetrically arranged. The first flue 301 and the second flue 302 are rectangular structures which are wide at the top and narrow at the bottom. The bottoms of the first flue 301 and the second flue 302 are both connected to the first scraper conveyor 4. The first flue 301 and the second flue 302 are connected by connecting ribs 6. A grille plate 7 is provided at the top of the connection between the first flue 301 and the second flue 302. A pipe connection port 8 is provided at the top of the first flue 301 and the second flue 302, and the pipe connection ports 8 on the first flue 301 and the second flue 302 are both connected to the bellows of the sintering machine body 1 through a bellows branch pipe 9. The flue gas outlets of the first flue 301 and the second flue 302 are connected to the electrostatic precipitator.

[0043] In the present invention, the length of the connecting rib 6 is 80-600 cm, preferably 100-500 cm, and more preferably 200-300 cm.

[0044] In the present invention, the bulk material belt conveyor 2 of the system is arranged between the first flue 301 and the second flue 302. The bulk material belt conveyor 2 is arranged on the top plane of the first flue 301. The interval between the wind box branch pipe 9 and the bulk material belt conveyor 2 is 65-150 cm, preferably 70-100 cm, and more preferably 80-90 cm.

[0045] In the present invention, the bulk material belt conveyor 2 of the system is arranged between the first flue 301 and the second flue 302, and is located on the top plane of the second flue 302. The interval between the wind box branch pipe 9 and the bulk material belt conveyor 2 is 65-150cm, preferably 70-100cm, and more preferably 80-90cm.

[0046] In the present invention, a bracket 10 is provided on the grid plate 7 , and the bracket 10 is connected to the first chute 101 .

[0047] In the present invention, dust drop holes 11 are provided at the bottom of the first flue 301 and the second flue 302. The number of the dust drop holes 11 is multiple, and the multiple dust drop holes 11 are arranged at intervals along the extension direction of the first flue 301 and the second flue 302. The first scraper conveyor 4 is connected to the first flue 301 and the second flue 302 through the dust drop holes 11. Support pillars 12 are provided on both sides of the bottom of the first flue 301 and the second flue 302 for support.

[0048] In the present utility model, the collecting device 5 includes a second chute 501, a second scraper conveyor 502, and a belt conveyor 503. The feed end of the second chute 501 is connected to the bulk material belt conveyor 2, the discharge end of the second chute 501 is connected to the feed end of the belt conveyor 503, and the second chute 501 is inclined. The second scraper conveyor 502 is arranged below the first scraper conveyor 4, and the discharge end of the second scraper conveyor 502 is connected to the feed end of the belt conveyor 503.

[0049] In the present invention, the second chute 501 is in a stepped shape.

[0050] In the present utility model, the collecting device 5 further includes a buffer bin 504, a third chute 505, and a double-layer ash discharge valve 506. The feed port of the buffer bin 504 is connected to the discharge port of the first scraper conveyor 4. The discharge port of the buffer bin 504 is provided with a double-layer ash discharge valve 506. The discharge port of the double-layer ash discharge valve 506 is sealed and connected to the feed port of the third chute 505. The discharge port of the third chute 505 is connected to the feed port of the second scraper conveyor 502, and the third chute 505 is inclined. The third chute 505 is in a stepped shape.

[0051] In the present invention, the feed port of the buffer bin 504 and the discharge port of the first scraper conveyor 4 are sealedly connected.

[0052] In the present invention, the system further comprises a sintering machine ore bucket 13. The sintering machine ore bucket 13 is arranged at the discharge port of the sintering machine body 1.

[0053] In the present invention, the system further comprises a feeding chute 14 . The feeding chute 14 is arranged below the sintering machine ore bucket 13 , and a discharge port of the feeding chute 14 is connected to the second chute 501 .

[0054] In the present invention, the system further comprises an annular cooler 15. The annular cooler 15 is arranged at one side of the feeding chute 14. The feeding end of the annular cooler 15 is connected to the discharge port of the ore bucket 13 of the sintering machine.

[0055] Example 1

[0056] like Figure 1As shown, an improved integrated double-flue floor-standing sintering cooling system includes a sintering machine body 1, a bulk material belt conveyor 2, a large flue 3, a first scraper conveyor 4, and a collecting device 5. The bulk material belt conveyor 2, the large flue 3, and the first scraper conveyor 4 are all arranged below the sintering machine body 1. Along the length direction of the sintering machine body 1, the bulk material belt conveyor 2, the large flue 3, and the first scraper conveyor 4 are sequentially extended from top to bottom. The large flue 3 is a rectangular structure. The bulk material belt conveyor 2 is arranged on the top plane of the large flue 3, and the bottom of the sintering machine body 1 is connected to the bulk material belt conveyor 2 through a first chute 101. The bottom of the large flue 3 is connected to the first scraper conveyor 4. The discharge port of the bulk material belt conveyor 2 and the discharge port of the first scraper conveyor 4 are both connected to the collecting device 5.

[0057] Example 2

[0058] like Figure 1 and Figure 2 As shown, Example 1 is repeated, except that the sintering machine body 1 further includes a funnel 102. A plurality of funnels 102 are arranged below the sintering machine body 1, and the plurality of funnels 102 are connected to both sides of the bottom of the sintering machine body 1. The discharge ports of the plurality of funnels 102 are all provided with a first chute 101, and are connected to the top of the bulk material belt conveyor 2 through the first chute 101, and the first chute 101 is arranged obliquely. Along the direction of the material, the plurality of funnels 102 are extended from the head of the sintering machine body 1 to the tail. The first chute 101 is in a stepped shape.

[0059] Example 3

[0060] like Figure 2 As shown, Example 2 is repeated, except that the large flue 3 includes a first flue 301 and a second flue 302 that are symmetrically arranged. The first flue 301 and the second flue 302 are rectangular structures that are wide at the top and narrow at the bottom. The bottoms of the first flue 301 and the second flue 302 are both connected to the first scraper conveyor 4. The first flue 301 and the second flue 302 are connected by connecting ribs 6. A grid plate 7 is provided at the top of the connection between the first flue 301 and the second flue 302. A pipe connection port 8 is provided at the top of the first flue 301 and the second flue 302, and the pipe connection ports 8 on the first flue 301 and the second flue 302 are connected to the bellows of the sintering machine body 1 through a bellows branch pipe 9. The flue gas outlets of the first flue 301 and the second flue 302 are connected to the electrostatic precipitator.

[0061] Example 4

[0062] Example 3 was repeated, except that the length of the connecting rib 6 was 100 cm.

[0063] Example 5

[0064] Example 3 was repeated, except that the length of the connecting rib 6 was 250 cm.

[0065] Example 6

[0066] Example 3 was repeated, except that the length of the connecting rib 6 was 500 cm.

[0067] Example 7

[0068] like Figure 2 and Figure 3 As shown, Example 6 is repeated, and the bulk material belt conveyor 2 of the system is arranged between the first flue 301 and the second flue 302, and is located on the top plane of the first flue 301. The interval between the wind box branch pipe 9 and the bulk material belt conveyor 2 is 65 cm.

[0069] Example 8

[0070] Repeat Example 6, where the interval between the bellows branch pipe 9 and the bulk material belt conveyor 2 is 70 cm.

[0071] Example 9

[0072] Repeat Example 6, where the interval between the bellows branch pipe 9 and the bulk material belt conveyor 2 is 80 cm.

[0073] Example 10

[0074] Repeat Example 6, in which the bulk material belt conveyor 2 is arranged between the first flue 301 and the second flue 302. The bulk material belt conveyor 2 is arranged on the top plane of the second flue 302. The interval between the wind box branch pipe 9 and the bulk material belt conveyor 2 is 65 cm.

[0075] Embodiment 11

[0076] Repeating Example 10, a bracket 10 is provided on the grid plate 7, and the bracket 10 is connected to the first chute 101.

[0077] Example 12

[0078] Repeating Example 11, the first flue 301 and the second flue 302 are both provided with dust drop holes 11 at the bottom, and the number of the dust drop holes 11 is multiple, and the multiple dust drop holes 11 are arranged at intervals along the extension direction of the first flue 301 and the second flue 302. The first scraper conveyor 4 is connected to the first flue 301 and the second flue 302 through the dust drop holes 11. Support pillars 12 are provided on both sides of the bottom of the first flue 301 and the second flue 302 for support.

[0079] Embodiment 13

[0080] like Figure 4 As shown, repeating Example 12, the collecting device 5 includes a second chute 501, a second scraper conveyor 502, and a belt conveyor 503. The feeding end of the second chute 501 is connected to the bulk material belt conveyor 2, the discharging end of the second chute 501 is connected to the feeding end of the belt conveyor 503, and the second chute 501 is arranged obliquely. The second scraper conveyor 502 is arranged below the first scraper conveyor 4, and the discharging end of the second scraper conveyor 502 is connected to the feeding end of the belt conveyor 503. The second chute 501 is in a stepped shape.

[0081] Embodiment 14

[0082] Repeating Example 13, the collecting device 5 further includes a buffer bin 504, a third chute 505, and a double-layer ash discharge valve 506. The feed port of the buffer bin 504 is connected to the discharge port of the first scraper conveyor 4. The discharge port of the buffer bin 504 is provided with a double-layer ash discharge valve 506. The discharge port of the double-layer ash discharge valve 506 is sealed and connected to the feed port of the third chute 505. The discharge port of the third chute 505 is connected to the feed port of the second scraper conveyor 502, and the third chute 505 is inclined. The third chute 505 is in a stepped shape. The feed port of the buffer bin 504 is sealed and connected to the discharge port of the first scraper conveyor 4.

[0083] Embodiment 15

[0084] like Figure 1 As shown, Example 14 is repeated, and the system further comprises a sintering machine ore bucket 13. The sintering machine ore bucket 13 is arranged at the discharge port of the sintering machine body 1.

[0085] Example 16

[0086] Repeat Example 15, the system further comprises a feeding chute 14. The feeding chute 14 is arranged below the sintering machine ore bucket 13, and the discharge port of the feeding chute 14 is connected to the second chute 501.

[0087] Embodiment 17

[0088] Repeat Example 16, the system further comprises an annular cooler 15. The annular cooler 15 is arranged on one side of the feeding chute 14. The feeding end of the annular cooler 15 is connected to the discharge port of the ore bucket 13 of the sintering machine.

Claims

1. An improved integrated double flue floor sintering cooling system, characterized by: The invention comprises a sintering machine body (1), a bulk material belt conveyor (2), a large flue (3), a first scraper conveyor (4), and a collecting device (5); the bulk material belt conveyor (2), the large flue (3), and the first scraper conveyor (4) are all arranged below the sintering machine body (1); along the length direction of the sintering machine body (1), the bulk material belt conveyor (2), the large flue (3), and the first scraper conveyor (4) are sequentially extended from top to bottom; the large flue (3) is a rectangular structure; the bulk material belt conveyor (2) is arranged on the top plane of the large flue (3), and the bottom of the sintering machine body (1) is connected to the bulk material belt conveyor (2) through a first chute (101); the bottom of the large flue (3) is connected to the first scraper conveyor (4); the discharge port of the bulk material belt conveyor (2) and the discharge port of the first scraper conveyor (4) are both connected to the collecting device (5).

2. The system according to claim 1, characterized in that: The sintering machine body (1) further comprises a hopper (102); a plurality of hoppers (102) are arranged below the sintering machine body (1), and the plurality of hoppers (102) are connected to both sides of the bottom of the sintering machine body (1); the discharge ports of the plurality of hoppers (102) are all provided with a first chute (101), and are connected to the top of the bulk material belt conveyor (2) through the first chute (101), and the first chute (101) is arranged inclined.

3. The system according to claim 2, characterized in that: Along the direction of the material, the plurality of funnels (102) are arranged extending from the head of the sintering machine body (1) to the tail.

4. The system according to claim 2, characterized in that: The first chute (101) is in a stepped shape.

5. The system according to any one of claims 1 to 3, characterized in that: The large flue (3) comprises a first flue (301) and a second flue (302) which are symmetrically arranged; the first flue (301) and the second flue (302) are rectangular structures which are wide at the top and narrow at the bottom; the bottoms of the first flue (301) and the second flue (302) are both connected to a first scraper conveyor (4); the first flue (301) and the second flue (302) are connected via connecting ribs (6); a grid plate (7) is provided at the top of the connection between the first flue (301) and the second flue (302); a pipe connection port (8) is provided at the top of the first flue (301) and the second flue (302), and the pipe connection ports (8) on the first flue (301) and the second flue (302) are both connected to the wind box of the sintering machine body (1) via a wind box branch pipe (9); the flue gas outlets of the first flue (301) and the second flue (302) are connected to an electric precipitator.

6. The system according to claim 5, characterized in that: The bulk material belt conveyor (2) of the system is arranged between the first flue (301) and the second flue (302), and is located on the top plane of the first flue (301) or the second flue (302); the interval between the bellows branch pipe (9) and the bulk material belt conveyor (2) is 65-150 cm.

7. The system according to claim 6, characterized in that: The distance between the bellows branch pipe (9) and the bulk material belt conveyor (2) is 70-100 cm.

8. The system according to claim 7, characterized in that: The distance between the bellows branch pipe (9) and the bulk material belt conveyor (2) is 80-90 cm.

9. The system according to claim 6, characterized in that: A bracket (10) is provided on the grid plate (7), and the bracket (10) is connected to the first chute (101).

10. The system according to claim 5, characterized in that: Dust discharge holes (11) are provided at the bottom of the first flue (301) and the second flue (302); the number of the dust discharge holes (11) is multiple, and the multiple dust discharge holes (11) are arranged at intervals along the extension direction of the first flue (301) and the second flue (302); the first scraper conveyor (4) is connected to the first flue (301) and the second flue (302) through the dust discharge holes (11); and pillars (12) for support are provided on both sides of the bottom of the first flue (301) and the second flue (302).

11. The system according to any one of claims 1-4, 6-10, characterized in that: The collecting device (5) comprises a second chute (501), a second scraper conveyor (502), and a belt conveyor (503); the feeding end of the second chute (501) is connected to the bulk material belt conveyor (2), the discharging end of the second chute (501) is connected to the feeding end of the belt conveyor (503), and the second chute (501) is arranged at an angle; the second scraper conveyor (502) is arranged below the first scraper conveyor (4), and the discharging end of the second scraper conveyor (502) is connected to the feeding end of the belt conveyor (503).

12. The system according to claim 5, characterized in that: The collecting device (5) comprises a second chute (501), a second scraper conveyor (502), and a belt conveyor (503); the feeding end of the second chute (501) is connected to the bulk material belt conveyor (2), the discharging end of the second chute (501) is connected to the feeding end of the belt conveyor (503), and the second chute (501) is arranged at an angle; the second scraper conveyor (502) is arranged below the first scraper conveyor (4), and the discharging end of the second scraper conveyor (502) is connected to the feeding end of the belt conveyor (503).

13. The system according to claim 11, characterized in that: The second chute (501) is in a stepped shape.

14. The system according to claim 12, characterized in that: The second chute (501) is in a stepped shape.

15. The system according to claim 11, characterized in that: The collecting device (5) further comprises a buffer bin (504), a third chute (505), and a double-layer ash unloading valve (506); the feed port of the buffer bin (504) is connected to the discharge port of the first scraper conveyor (4); the discharge port of the buffer bin (504) is provided with a double-layer ash unloading valve (506); the discharge port of the double-layer ash unloading valve (506) is sealedly connected to the feed port of the third chute (505); the discharge port of the third chute (505) is connected to the feed port of the second scraper conveyor (502), and the third chute (505) is arranged obliquely.

16. The system according to claim 12, characterized in that: The collecting device (5) further comprises a buffer bin (504), a third chute (505), and a double-layer ash unloading valve (506); the feed port of the buffer bin (504) is connected to the discharge port of the first scraper conveyor (4); the discharge port of the buffer bin (504) is provided with a double-layer ash unloading valve (506); the discharge port of the double-layer ash unloading valve (506) is sealedly connected to the feed port of the third chute (505); the discharge port of the third chute (505) is connected to the feed port of the second scraper conveyor (502), and the third chute (505) is arranged obliquely.

17. The system according to claim 15 or 16, characterized in that: The third chute (505) is in a stepped shape; the feed port of the buffer bin (504) is sealedly connected to the discharge port of the first scraper conveyor (4).

18. The system according to any one of claims 1-4, 6-10, 12-16, characterized in that: The system also comprises a sintering machine ore bucket (13); the sintering machine ore bucket (13) is arranged at the discharge port of the sintering machine body (1).

19. The system according to claim 5, characterized in that: The system also comprises a sintering machine ore bucket (13); the sintering machine ore bucket (13) is arranged at the discharge port of the sintering machine body (1).

20. The system according to claim 11, characterized in that: The system also comprises a sintering machine ore bucket (13); the sintering machine ore bucket (13) is arranged at the discharge port of the sintering machine body (1).

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