SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a coke whole grain system can concentrate whole grain to the coke and grade, provides qualified fuel for blast furnace and sintering better.
In view of this, the utility model provides a coke granule system includes: the coke screening device comprises a primary screening device, a secondary screening device, a coke cutter, a coke powder granulating device and a coke conveying device; the primary screening device and the secondary screening device are connected through the coke conveying device, the primary screening device is connected with the coke cutter through the coke conveying device, the coke cutter is connected with the secondary screening device through the coke conveying device, and the secondary screening device is connected with the coke powder granulating device through the coke conveying device; the first-stage screening device and the second-stage screening device can screen coke, and the size of a sieve pore of the second-stage screening device is smaller than that of the first-stage screening device; the coke cutter can cut oversize materials of the primary screening device; the coke powder granulating device can crush undersize materials of the secondary screening device; the coke transport apparatus may transport the coke; and after the raw coke is screened by the primary screening device, oversize materials are conveyed to the coke cutter for cutting, undersize materials and the coke cut by the coke cutter are conveyed to the secondary screening device together for screening, and undersize materials of the secondary screening device are conveyed to the coke powder granulating device for crushing.
The utility model provides a whole grain system of coke, former burnt (referring to the coke that has not passed through whole grain system processing of coke) is through the screening of first order screening plant after, the thing of oversize transports to the coke cutter and cuts, the particle diameter that makes the coke after the cutting is the same with the particle diameter of the subsieve material of first order screening plant, then transport the subsieve material of first order screening plant and the coke after the cutting of coke cutter to second level screening plant together and sieve, the thing of oversize after the screening of second level screening plant can transport to the blast furnace feed bin, use for the blast furnace, the subsieve material coke powder of second level screening plant transports to sintering proportioning bins after the crushing of whole grain device of coke powder, supply the sintering to use as fuel. The utility model provides a whole grain system of coke is to former burnt through secondary screening and cutting to carry out the breakage to the fine coke after the secondary screening, realized whole grain of coke and the breakage of fine coke, can provide qualified fuel for blast furnace and sintering.
Preferably, the coke powder granulating device comprises a four-roller crusher.
And the undersize of the secondary screening device needs to be processed by a four-roller crusher, and the particle size of the coke processed by the four-roller crusher meets the requirement of sintering fuel by adjusting the gap of the four rollers.
Preferably, the fine coke granule finishing device further comprises a double-roll crusher, the second-stage screening device is connected with the double-roll crusher through the coke conveying device, and the double-roll crusher is connected with the four-roll crusher through the coke conveying device.
And after the undersize of the secondary screening device is roughly processed by a double-roller crusher, the undersize is finely processed by a four-roller crusher, so that the particle size of coke meets the requirement of sintering fuel.
Preferably, the size of the sieve hole of the first-stage screening device is 60mm, the particle size of the coke cut by the coke cutter is less than 60mm, the size of the sieve hole of the second-stage screening device is 10mm, the particle size of the coke crushed by the double-roller crusher is less than 5mm, and the particle size of the coke crushed by the four-roller crusher is less than 3 mm.
In the actual production process, the particle size of the coke screened by the first-stage screening device and the second-stage screening device, the size of the coke processed by the coke cutting machine, and the particle size of the coke crushed by the double-roller crusher and the four-roller crusher can be set by themselves according to actual needs, and are not limited to the above numerical values.
Preferably, the coke pelletizing system further comprises a receiving hopper, the receiving hopper can contain the raw coke, and the receiving hopper is positioned above the primary screening device, so that the raw coke in the receiving hopper can fall into the primary screening device.
The coke pelletizing system comprises a receiving hopper, wherein the receiving hopper is arranged above the primary screening device, so that the original coke in the receiving hopper can directly fall into the primary screening device, the coke conveying device for conveying the original coke to the primary screening device from the receiving hopper is omitted, and the cost is saved.
Preferably, the coke pelletizing system further comprises a receiving hopper, the receiving hopper can contain the raw coke, and the receiving hopper is connected with the primary screening device through the coke conveying device so as to convey the raw coke in the receiving hopper to the primary screening device.
The coke pelletizing system comprises a receiving hopper, and raw coke in the receiving hopper is transported to the primary screening device through a coke transporting device, so that the relative positions of the receiving hopper and the primary screening device can be flexibly set.
Preferably, the coke conveying device between the primary screening device and the coke cutter is a chute, one end of the chute is connected with the primary screening device, and the other end of the chute is connected with the coke cutter.
The coke cutter is connected with the first-stage screening device through a chute, so that oversize materials of the first-stage screening device can smoothly enter the coke cutter to be cut.
Preferably, the coke transporting device between the receiving hopper and the first-stage screening device, between the first-stage screening device and the second-stage screening device, between the coke cutter and the second-stage screening device, between the second-stage screening device and the double-roll crusher, and between the double-roll crusher and the four-roll crusher is a belt conveyor.
Through belt conveyer transportation coke, the coke can follow on the belt drops uniformly among the last one-level processingequipment of coke whole grain system, and the coke on the belt can be even drop among the next one-level processingequipment of coke whole grain system, makes the coke screening more abundant or crushing effect better.
Preferably, the first stage screening device comprises a first vibrating screen.
Preferably, the secondary screening device comprises a second vibrating screen.
The first-stage screening device and the second-stage screening device are both vibrating screens, and the screening effect is good.
To sum up, the utility model provides a whole grain system of coke can concentrate whole grain to coke and grade, provides qualified fuel for blast furnace and sintering better.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
The coke granule finishing system provided by the present invention is described below with reference to fig. 1 and 2, fig. 1 is a structural block diagram of an embodiment of the coke granule finishing system provided by the present invention, fig. 2 is a structural block diagram of another embodiment of the coke granule finishing system provided by the present invention, the line segment with an arrow in fig. 1 and 2 represents a coke transportation device, the coke can be transported in the direction shown by the arrow, and the numerical value on the arrow represents the particle size of the transported coke.
As shown in fig. 1 and 2, the utility model provides a coke granulating system, which comprises a primary screening device, a secondary screening device, a coke cutter 3, a coke powder granulating device and a coke conveying device; wherein,
the primary screening device and the secondary screening device are connected through the coke conveying device, meanwhile, the primary screening device is connected with the coke cutter 3 through the coke conveying device, the coke cutter 3 is connected with the secondary screening device through the coke conveying device, and the secondary screening device is connected with the coke powder granulating device through the coke conveying device;
the first-stage screening device and the second-stage screening device can screen coke, and the size of a sieve pore of the second-stage screening device is smaller than that of the first-stage screening device; the coke cutter 3 can cut oversize materials of the primary screening device; the coke powder granulating device can crush undersize materials of the secondary screening device; the coke transport apparatus may transport the coke;
after raw coke is screened by the primary screening device, oversize materials are conveyed to the coke cutter 3 for cutting, undersize materials and coke cut by the coke cutter 3 are conveyed to the secondary screening device together for screening, and undersize materials of the secondary screening device are conveyed to the coke powder granulating device for crushing.
The utility model provides a whole grain system of coke, former coke are through the screening of first order screening plant after, and the thing of oversize is transported to the coke cutter and is cut, and the particle diameter of the coke after the cutting is the same with the particle diameter of the thing under sieve of first order screening plant, makes the coke after the cutting need not sieve once more through first order screening plant, can directly get into second order screening plant and carry out the secondary screening, has saved the technological process of whole grain of coke, has shortened the whole hierarchical time of whole grain of coke; then transport the undersize thing of first order screening plant and the coke after the cutting of coke cutter to second grade screening plant together and sieve, the oversize thing after the screening of second grade screening plant can be transported to the blast furnace feed bin, uses by the blast furnace, and the undersize thing fine coke of second grade screening plant is transported to sintering proportioning bins after the fine granule device of fine coke is broken, supplies the sintering as the fuel and uses. The utility model provides a coke granule system is whole to former burnt through secondary screening and cutting to carry out the breakage to the fine coke after the secondary screening, realized the breakage of whole grain of coke and fine coke, can provide qualified fuel for blast furnace and sintering.
Preferably, as shown in fig. 1 and 2, the first stage screening device comprises a first vibrating screen 1 and the second stage screening device comprises a second vibrating screen 2.
The first-stage screening device and the second-stage screening device are both vibrating screens, and the screening effect is good.
Preferably, as shown in fig. 2, in an embodiment of the present invention, the coke powder finishing device includes a four-roll crusher 42.
After the undersize of the second vibrating screen is processed by a four-roller crusher, the particle size of coke meets the requirement of sintering fuel and can be used as the sintering fuel.
Preferably, as shown in fig. 1, in another embodiment of the present invention, the fine coke finishing device includes a pair roller crusher 41 and a four roller crusher 42, the second vibrating screen 2 is connected to the pair roller crusher 41 through the coke transporting device, and the pair roller crusher 41 is connected to the four roller crusher 42 through the coke transporting device.
And the undersize of the second vibrating screen is roughly processed by a double-roller crusher and then is finely processed by a four-roller crusher, so that the particle size of the coke meets the requirement of sintering fuel.
Preferably, as shown in fig. 1, the first vibrating screen 1 has a screen hole size of 60mm, the coke cut by the coke cutter has a particle size of less than 60mm, the second vibrating screen 2 has a screen hole size of 10mm, the coke crushed by the pair roller crusher 41 has a particle size of less than 5mm, and the coke crushed by the four roller crusher 42 has a particle size of less than 3 mm.
The utility model discloses a first shale shaker 1 can be less than 60mm with the coke screening of particle size and not less than 60mm separately, second shale shaker 2 can be less than 10mm with the particle size and not less than 10 mm's coke screening separately, coke cutter 3 can cut the coke that the particle size of 1 screening of first shale shaker is not less than 60mm into the particle size and is less than 60 mm's coke, the coke through 3 processing of coke cutter this moment need not sieve through first shale shaker 1, can directly get into second shale shaker 2 and carry out the secondary screening, the technological process of the whole grain of coke has been saved, the time of whole grain classification of coke has been shortened. And (3) roughly processing coke powder of undersize products of the second vibrating screen 2 by a double-roller crusher 41, processing the coke into coke powder with the particle size of less than 5mm, then finely processing the coke powder by a four-roller crusher 42, and processing the coke powder into coke powder with the particle size of less than 3mm for sintering, so that the particle size of the coke meets the requirement of sintering fuel.
In fig. 1, the particle size of the coke sieved by the first vibrating screen 1 and the second vibrating screen 2, the size of the coke processed by the coke cutter 3, and the particle size of the coke crushed by the pair roller crusher 41 and the four roller crusher 42 are set by themselves according to actual needs, and are not limited to the values shown in fig. 1.
Preferably, the coke grading system further comprises a receiving hopper 5, wherein the receiving hopper 5 can contain the raw coke, and the receiving hopper 5 is positioned above the first vibrating screen 1, so that the raw coke in the receiving hopper 5 can fall into the first vibrating screen 1.
The whole grain system of coke includes the hopper, and the hopper setting is in the top of first shale shaker, makes the former coke in the hopper can directly fall into first shale shaker, has saved and has transported the coke conveyer to first shale shaker from the hopper with the coke, has saved the cost.
Preferably, as shown in fig. 1, the coke grading system further comprises a receiving hopper 5, the receiving hopper 5 can contain the raw coke, and the receiving hopper 5 is connected with the first vibrating screen 1 through the coke transporting device so as to transport the raw coke in the receiving hopper 5 to the first vibrating screen 1.
The coke pelletizing system comprises a receiving hopper, and the raw coke in the receiving hopper is transported to a first vibrating screen through a coke transporting device, so that the relative position of the receiving hopper and the first vibrating screen can be flexibly set.
Preferably, the coke transporting device between the first vibrating screen 1 and the coke cutter 3 is a chute, one end of which is connected with the first vibrating screen 1, and the other end is connected with the coke cutter 3.
Connect coke cutter and first shale shaker through the chute, realized the transportation of coke, simple structure easily realizes.
Preferably, the coke transport means between the receiving hopper and 5 the first vibrating screen 1, between the first vibrating screen 1 and the second vibrating screen 2, between the coke cutter 3 and the second vibrating screen 2, between the second vibrating screen 2 and the pair of roll crushers 41, and between the pair of roll crushers 41 and the four roll crusher 42 are belt conveyors.
Through belt conveyer transportation coke, the coke can follow the last one-level processingequipment of coke whole grain system and drop to the belt uniformly, and the coke on the belt can be even drop to the next one-level processingequipment of coke whole grain system on, makes the coke screening more abundant, and crushing effect is better.
The working principle and the working process of the coke granulating system provided by the invention are explained below with reference to fig. 1:
the method comprises the steps of putting raw coke into a receiving hopper 5, conveying the raw coke to a first vibrating screen 1 for screening by a belt conveyor under the receiving hopper 5, wherein oversize matters are cokes with the particle size not smaller than 60mm, undersize matters are cokes with the particle size smaller than 60mm, a coke cutting machine 3 is installed beside the first vibrating screen 1, oversize matters of the first vibrating screen 1 enter a coke cutting machine 1 through a chute, and the coke cutting machine 1 cuts the cokes with the particle size not smaller than 60mm into cokes with the particle size smaller than 60 mm. After the coke is cut by the coke cutter 1, the coke with the particle size of less than 60mm and the undersize material of the first vibrating screen 1 are conveyed to the second vibrating screen 2 together, the second vibrating screen 2 divides the coke into the coke with the particle size of not less than 10mm and the coke powder with the particle size of less than 10mm, and the coke with the particle size of not less than 10mm is conveyed to the blast furnace bin 6 through the belt conveyer and is used by a blast furnace. The coke powder with the particle size of less than 10mm sequentially enters the double-roller crusher 41 and the four-roller crusher 42 to be crushed, the double-roller crusher 41 processes the coke powder into the coke powder with the particle size of less than 5mm, the four-roller crusher 42 crushes the coke powder with the particle size of less than 5mm into the coke powder with the particle size of less than 3mm, and the coke powder with the particle size of less than 3mm can be transported to the sintering proportioning bin 7 by an automobile to be used as sintering fuel.
To sum up, the utility model provides a whole grain system of coke can concentrate whole grain to coke and grade, provides qualified fuel for blast furnace and sintering better.
In the present application, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.