CN114633509A

CN114633509A - Manufacturing process of return-ore pressed pellets

Info

Publication number: CN114633509A
Application number: CN202210278889.4A
Authority: CN
Inventors: 徐长飞
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-03-21
Filing date: 2022-03-21
Publication date: 2022-06-17

Abstract

The invention provides a manufacturing process of return fine briquettes, and relates to the technical field of return fine briquettes. A manufacturing process of return fines pellet comprises mixing four materials of sintered return fines, iron scale, iron concentrate powder or steel slag powder and dedusting ash; screening the mixed materials through a first screening component; stirring the screened materials by a stirrer; pressing the stirred material into ball blocks by a ball press; and drying the pressed pellet materials by a vertical dryer to obtain the ore return pressed pellets. By adopting the invention, the manufacture of the return pressed pellet is convenient, the impurities such as dust and the like generated in the production process are less, and the influence of the impurities such as dust and the like on the air quality of a production workshop is reduced.

Description

Manufacturing process of return ore pressed pellet

Technical Field

The invention relates to the technical field of manufacture of return fine briquettes, in particular to a manufacture process of the return fine briquettes.

Background

In the field of mineral products, pellets are one of the important methods for agglomeration of fine ores. Adding a proper amount of water and a proper amount of a binder into fine ore to prepare green pellets with uniform viscosity and sufficient strength, drying and preheating the green pellets to obtain return ore pressed pellets, and then conveying the return ore pressed pellets to a blast furnace for smelting to prepare pellets.

In the process of preparing the return ore pressed pellets, materials such as sintered return ores, iron scales, fine iron powder or steel slag powder, dedusting ash and the like are generally mixed according to a certain proportion, and then the return ore pressed pellets are obtained through the steps of stirring, ball pressing, drying and the like. The existing ore return pellet pressing manufacturing process is complex, is not environment-friendly enough in the production process, is easy to produce more impurities such as dust and the like, influences the air quality of a production workshop, and is not beneficial to the health of workers.

Disclosure of Invention

The invention aims to provide a manufacturing process of return fine briquettes, which is convenient for manufacturing the return fine briquettes, generates less impurities such as dust during production and reduces the influence of the impurities such as the dust on the air quality of a production workshop.

The embodiment of the invention is realized by the following steps:

the embodiment of the application provides a manufacturing process of return fines briquetting, which comprises the following steps

Mixing four materials of sintered return ores, iron scales, iron fine powder or steel slag powder and dedusting ash;

screening the mixed materials through a first screening component;

stirring the screened materials by a stirrer;

pressing the stirred material into ball blocks by a ball press;

and drying the pressed pellet materials by a vertical dryer to obtain the ore return pressed pellets.

Further, in some embodiments of the present invention, before drying the pellet materials, the step of screening the pellet materials by the second screening assembly is further included.

Further, in some embodiments of the present invention, when the sieved material is stirred by the stirrer, a binder is added to the material.

Further, in some embodiments of the present invention, before the four materials of the sintered return ores, the iron scales, the iron powder or the steel slag powder, and the fly ash are mixed, the materials are dosed according to a corresponding ratio by a dosing system.

Further, in some embodiments of the present invention, the above-mentioned dosing system includes a first hopper with an opening at the bottom, the first hopper is slidably provided with a baffle for shielding the opening at the bottom of the first hopper and a driving component for driving the baffle to slide reciprocally; the hopper is provided with a mounting frame, the mounting frame is provided with two oppositely arranged sliding chutes, and two sides of the baffle are respectively arranged in the sliding chutes in a sliding manner; the driving assembly comprises a hydraulic lever, the hydraulic lever is arranged on the mounting frame, and the telescopic end of the hydraulic lever is connected with the baffle.

Further, in some embodiments of the present invention, a first conveyor belt is arranged below the first hopper, a plurality of material receiving boxes are arranged on the top of the conveyor belt, the material receiving boxes correspond to the first hopper one to one, the material receiving boxes are arranged below the first hopper, and the first screening assembly is arranged at one end of the first conveyor belt far away from the first hopper; a conical pressure bearing table is arranged in the first hopper, the pressure bearing table is hollow, and a material conveying hole communicated with an opening in the bottom of the first hopper is formed in the side wall of the pressure bearing table.

Further, in some embodiments of the present invention, the first screen assembly includes a screen, a first support frame, and a rotating shaft rotatably disposed on the first support frame, the rotating shaft has a plurality of support rods, the screen is in a circular truncated cone shape, and the screen is sleeved outside the rotating shaft and fixed to the support rods; the first support frame is provided with a driving motor, and the driving motor is in transmission connection with the rotating shaft; the both ends opening of screen cloth, the great pot head of screen cloth diameter is equipped with the guide sleeve, and the guide sleeve is fixed in first support frame, and guide sleeve bottom is equipped with the water conservancy diversion mouth.

Further, in some embodiments of the present invention, a second conveyor belt for conveying the material and a flow guiding assembly for uniformly guiding the material on the second conveyor belt to the vertical dryer are disposed at the top of the vertical dryer;

the guide assembly comprises a mounting seat arranged at the top of the vertical dryer in a sliding mode and a baffle arranged on the mounting seat, and the baffle is arranged above the second conveying belt.

Further, in some embodiments of the present invention, the mounting seat is provided with a plurality of rotating rollers, the rotating rollers are disposed below the baffle, and the top belt body of the second conveying belt passes through between the rotating rollers and the baffle; the mount pad is equipped with the stopper of two relative settings, and the top area body of second conveyer belt is located between two stoppers.

Further, in some embodiments of the present invention, the mounting base is provided with a material diversion hopper matched with the baffle, the top of the vertical dryer is provided with a slide rail, the mounting base is provided with a pulley matched with the slide rail, and the sliding direction of the pulley is consistent with the conveying direction of the second conveying belt; the mounting seat is rotatably provided with a driving shaft, the pulley is arranged on the driving shaft, and the mounting seat is arranged on a driving motor for driving the driving shaft to rotate; the driving motor is arranged on the mounting seat, a transmission shaft of the driving motor is provided with a first chain wheel, and a driving shaft is provided with a second chain wheel; the chain is meshed with the first chain wheel and the second chain wheel respectively; the top of the vertical dryer is provided with a feed inlet, the feed inlet is positioned below the flow guide assembly, the top of the vertical dryer is provided with an inclined plane, the feed inlet is positioned at the lowest part of the inclined plane, and the inclined plane is positioned below the flow guide assembly.

Compared with the prior art, the embodiment of the invention at least has the following advantages or beneficial effects:

the embodiment of the invention provides a manufacturing process of return fines briquetting, which comprises the following steps

screening the mixed materials through a first screening component;

stirring the screened materials by a stirrer;

pressing the stirred material into ball blocks by a ball press;

The manufacturing method is convenient for manufacturing the return pressure pellet, and the impurities such as dust and the like generated in production are less, so that the influence of the impurities such as dust and the like on the air quality of a production workshop is reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of an ironmaking system according to an embodiment of the present invention;

FIG. 2 is an elevation view of a dosing and first screen assembly provided by an embodiment of the present invention;

FIG. 3 is a partial cross-sectional view of a first hopper provided in accordance with an embodiment of the present invention;

FIG. 4 is a schematic diagram of a hydraulic bar and mount location provided by an embodiment of the present invention;

FIG. 5 is a schematic diagram of a screen panel according to an embodiment of the present invention;

FIG. 6 is a schematic structural view of a flow sleeve according to an embodiment of the present invention;

fig. 7 is a front view of a bin storage system provided by an embodiment of the invention;

FIG. 8 is a cross-sectional view of a track location provided by an embodiment of the present invention;

fig. 9 is a schematic structural view illustrating a position of a vertical dryer according to an embodiment of the present invention;

FIG. 10 is an enlarged view taken at A in FIG. 9;

fig. 11 is a schematic structural diagram of a flow guide assembly according to an embodiment of the present invention;

fig. 12 is a partial sectional view of a vertical dryer according to an embodiment of the present invention.

Icon: 101-a first hopper; 102-a baffle; 103-a mounting frame; 104-a chute; 105-a hydraulic bar; 106-a first conveyor belt; 107-a material receiving box; 108-a load cell; 109-a first support frame; 110-a rotating shaft; 111-mesh screen; 112-a support bar; 113-a drive motor; 114-a flow sleeve; 115-a flow guide port; 116-a pressure-bearing table; 119-a delivery hole; 301-vertical dryer; 302-a second conveyor belt; 303-a mounting seat; 304-a baffle; 305-a turning roll; 306-a limiting block; 307-material diversion bucket; 308-a slide rail; 309-a pulley; 310-a drive shaft; 311-drive motor; 312 — a first sprocket; 313-a second sprocket; 314-a chain; 315-feed inlet; 316-bevel; 201-a second hopper; 206-a third conveyor belt; 209-a fourth conveyor belt; 210-a first scaffold; 211-track; 212-a second support; 213-a slide block; 214-an electric motor; 215-a roller; 401-temporary storage bins; 402-a stirrer; 403-ball press; 404-first screen assembly; 405-a second screen assembly; 406-fifth conveyor belt.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without any inventive step, are within the scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the embodiments of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are usually placed in when used, the orientations or positional relationships are only used for convenience of describing the present invention and simplifying the description, but the terms do not indicate or imply that the devices or elements indicated must have specific orientations, be constructed in specific orientations, and operate, and therefore, should not be construed as limiting the present invention. Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not require that the components be absolutely horizontal or vertical, but may be slightly inclined. Such as "horizontal" simply means that its orientation is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the embodiments of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

Examples

Referring to fig. 1 to 12, the present embodiment provides a process for manufacturing return pressed pellets, which includes

Carrying out quantitative feeding on various materials in a corresponding proportion through a quantitative feeding system;

screening the mixed material by a first screen assembly 404;

adding an adhesive to the material, and stirring the sieved material by a stirrer 402;

pressing the stirred material into ball blocks by a ball press 403;

screening the pellet material through a second screening assembly 405;

the pressed pellet materials are dried by a vertical dryer 301 to obtain ore return pressed pellets.

So be convenient for make the return fines pellet, impurity such as dust that produces is less during production, has reduced the influence of impurity such as dust to workshop air quality.

As shown in fig. 1-12, in some embodiments of the present invention, the above-mentioned dosing system comprises a first hopper 101 with an open bottom, the first hopper 101 is slidably provided with a shutter 102 for covering the open bottom of the first hopper 101, and a driving assembly for driving the shutter 102 to slide reciprocally.

During the in-service use, can place the material in first hopper 101, when the material of certain weight is required, accessible drive assembly drive baffle 102 slides, baffle 102 slides back first hopper 101 bottom opening exposes gradually, so the material in first hopper 101 can be followed first hopper 101 bottom opening and dropped, baffle 102 removes the time of opening long, the material drops much, the time that baffle 102 removed is opened weak point, the material drops less, so accessible drive assembly control baffle 102 removes the time difference of opening with the weight that the adjustment material dropped, can carry out the ration to multiple material, it is accurate to batching, be convenient for the misce bene between the multiple material.

As shown in fig. 1 to 12, in some embodiments of the present invention, the first hopper 101 is provided with a mounting frame 103, the mounting frame 103 is provided with two oppositely disposed sliding grooves 104, and two sides of the baffle plate 102 are slidably disposed on the sliding grooves 104, respectively; the driving assembly comprises a hydraulic bar 105, the hydraulic bar 105 is arranged on the mounting frame 103, and the telescopic end of the hydraulic bar 105 is connected with the baffle plate 102. This facilitates the mounting of the flapper 102 and the hydraulic bar 105, as well as the sliding of the flapper 102. The baffle plate 102 can be pushed to slide back and forth by extending or shortening the hydraulic rod 105, and the operation is convenient.

As shown in fig. 1-12, in some embodiments of the present invention, a first conveyor belt 106 is disposed below the first hopper 101, a plurality of material receiving boxes 107 are disposed on the top of the first conveyor belt 106, the material receiving boxes 107 are in one-to-one correspondence with the first hopper 101, the material receiving boxes 107 are disposed below the first hopper 101, and the first screen assemblies 404 are disposed at an end of the first conveyor belt 106 away from the first hopper 101.

Because a plurality of materials are generally required to be mixed for use, the number of the first hoppers 101 is multiple, and the first conveying belt 106 is arranged below the first hoppers 101, so that the materials can be respectively placed in the first hoppers 101, the materials can be conveniently fed quantitatively through the first hoppers 101, and after falling off from the first hoppers 101, the materials can be conveyed through the first conveying belt 106.

Through setting up the material receiving box 107, so the material can fall into the material receiving box 107 after falling and deposit, is convenient for transport. Optionally, the number of the first hoppers 101 and the material receiving boxes 107 in this embodiment is four, so that four materials, such as sintered return ores, iron scales, fine iron powder or steel slag powder, and dust removal ash, can be respectively placed in the four first hoppers 101.

Optionally, the top of the first conveyor belt 106 of this embodiment is provided with a weighing sensor 108, the weighing sensors 108 correspond to the material receiving boxes 107 one by one, and the material receiving boxes 107 are arranged on the top of the weighing sensors 108; and the weighing sensor 108 and the driving component are electrically connected with the processor. So the material that drops in material receiving box 107 can weigh through weighing sensor 108 and with relevant weight signal transmission to the treater in, when weight reached the threshold value, the steerable drive assembly work of treater removed baffle 102 and made first hopper 101 bottom opening shelter from, so prevent that the material from continuing to drop, the accurate dosing of automatic control of being convenient for, convenient operation.

As shown in fig. 1 to 12, in some embodiments of the present invention, a tapered pressure-bearing platform 116 is disposed in the first hopper 101, the pressure-bearing platform 116 is hollow, and a material conveying hole 119 is disposed on a side wall of the pressure-bearing platform 116 and communicates with an opening at the bottom of the first hopper 101.

After the materials are placed in the first hopper 101, the materials exert pressure on the baffle plate 102, so that the baffle plate 102 has large bearing pressure and is easy to damage and slide. According to the invention, by arranging the pressure bearing platform 116, most of materials can be accumulated on the pressure bearing platform 116, and a part of materials flow into the pressure bearing platform 116 through the material conveying hole 119 and are positioned on the baffle plate 102, so that the baffle plate 102 has small pressure bearing capacity and is not easy to damage. During feeding, the material continuously drops from the material conveying hole 119 and enters the pressure bearing table 116, and at this time, the material can drop from the bottom of the first hopper 101.

As shown in fig. 1-12, in some embodiments of the present invention, the first screen assembly 404 includes a screen 111, a first support frame 109, and a rotating shaft 110 rotatably disposed on the first support frame 109, the rotating shaft 110 has a plurality of support rods 112, the screen 111 is in a truncated cone shape, and the screen 111 is sleeved outside the rotating shaft 110 and fixed on the support rods 112. The first support frame 109 is provided with a driving motor 113, and the driving motor 113 is in transmission connection with the rotating shaft 110. The two ends of the screen 111 are open, a flow guide sleeve 114 is sleeved at one end of the screen 111 with a larger diameter, the flow guide sleeve 114 is fixed on the first support frame 109, and a flow guide opening 115 is arranged at the bottom of the flow guide sleeve 114.

According to the invention, by arranging the first screening component 404, after quantitative feeding, the first conveying belt 106 conveys the material receiving boxes 107 storing corresponding materials to the position of the screen 111, the materials in the material receiving boxes 107 can be poured into the screen 111 from one end with the smaller diameter of the screen 111, meanwhile, the driving motor 113 drives the rotating shaft 110 to rotate, the rotating shaft 110 drives the screen 111 to rotate, so that various materials can be preliminarily mixed, screening is realized by rotating the screen 111, the materials with the particle size smaller than the mesh of the screen 111 fall off, the materials with the particle size larger than the mesh of the screen 111 slide downwards along the inner side wall of the screen 111 and fall into the flow guide sleeve 114 from one end with the larger diameter of the screen 111, and at the moment, the materials with the particle size larger than the mesh of the screen 111 flow out of the flow guide opening 115 at the bottom of the flow guide sleeve 114, so that the screening of the materials is realized, and the operation is convenient. Optionally, the driving motor 113 and the rotating shaft 110 of the present embodiment may be coaxially and fixedly connected to realize transmission, and may also realize transmission through a gear box.

As shown in fig. 1 to 12, in some embodiments of the present invention, a second conveyor belt 302 for conveying materials and a diversion assembly for uniformly diverting the materials on the second conveyor belt 302 to the vertical dryer 301 are disposed on the top of the vertical dryer 301;

the guide assembly comprises a mounting seat 303 slidably disposed on the top of the vertical dryer 301 and a baffle 304 disposed on the mounting seat 303, wherein the baffle 304 is disposed above the second conveyor belt 302.

Accessible second conveyer belt 302 is carried the return fines briquetting material during in-process of in-service use, and the material is along the in-process of vertical drying-machine 301 top transport, heats in evenly leading the water conservancy diversion of the material on with above-mentioned second conveyer belt 302 to above-mentioned vertical drying-machine 301 through the water conservancy diversion subassembly, so can evenly dry the material, improves the finished product quality of return fines briquetting that obtains after the stoving.

Optionally, the second conveyer belt 302 of this embodiment is an existing common device, two ends of which are provided with conveying rollers, the conveying rollers are wound with a closed belt body, and the material is placed on the belt body on the top of the second conveyer belt 302 for conveying.

According to the invention, the baffle 304 is arranged above the second conveyer belt 302, and the baffle 304 can be arranged at a distance from the top belt body of the second conveyer belt 302 during installation, wherein the distance is less than the width of the material. Thus, when the second conveyer belt 302 conveys the materials along the top of the vertical dryer 301 at a constant speed, the guide assembly slides along the top of the vertical dryer 301 at a constant speed, the sliding direction of the guide assembly is consistent with the conveying direction of the second conveyer belt 302, and the sliding speed of the guide assembly is less than the speed of the second conveyer belt 302 for conveying the materials,

because the speed is different, so baffle 304 can produce relative displacement with second conveyer belt 302, because second conveyer belt 302 translation rate is fast, the material on the second conveyer belt 302 top area body can remove and be close to baffle 304 this moment, when the material removed the position of baffle 304, baffle 304 shelters from the material spacing, prevented that the material from removing through baffle 304, so second conveyer belt 302 normal speed removes, the material is kept off the one side at baffle 304, the material slides and slides out mount pad 303 along baffle 304 under the drive of second conveyer belt 302, then the material drops and dries in vertical drying-machine 301.

Because the mounting seat 303 and the baffle 304 also move at a constant speed, the baffle 304 moving along the top of the vertical dryer 301 can uniformly guide the moving materials to the top of the vertical dryer 301, so that the materials can be uniformly heated and dried. And because baffle 304 and second conveyer belt 302 top area body interval set up, so some less material of particle size can move through baffle 304 and be taken away by second conveyer belt 302, are convenient for carry out the returning charge reprocess to this type of defective material.

As shown in fig. 1 to 12, in some embodiments of the present invention, the mounting seat 303 is provided with a plurality of rotating rollers 305, the rotating rollers 305 are provided below the baffle 304, and the top belt body of the second conveyor belt 302 passes through between the rotating rollers 305 and the baffle 304; the mounting seat 303 is provided with two oppositely disposed limiting blocks 306, and the top belt body of the second conveyor belt 302 is located between the two limiting blocks 306.

The rotating rollers 305 are arranged, so that the top belt body of the second conveying belt 302 is conveniently supported by the rotating rollers 305, and the top of the second conveying belt 302 is also conveniently slid relative to the mounting seat 303. According to the invention, the two limit blocks 306 are arranged, and the top belt body of the second conveyer belt 302 is positioned between the two limit blocks 306, so that the top belt body of the second conveyer belt 302 can be limited by the limit blocks 306, and the top belt body is prevented from falling off from the flow guide assembly or deviating from the flow guide assembly.

As shown in fig. 1-12, in some embodiments of the present invention, the mounting base 303 is provided with a material guiding hopper 307 engaged with the baffle 304, the top of the vertical dryer 301 is provided with a sliding rail 308, the mounting base 303 is provided with a pulley 309 engaged with the sliding rail 308, and the sliding direction of the pulley 309 is the same as the conveying direction of the second conveying belt 302.

According to the invention, the material flow guide hopper 307 is arranged, so that the material guided by the baffle 304 can move into the material flow guide hopper 307, and the material can be conveniently and accurately moved into the vertical dryer 301 through the material flow guide hopper 307. The sliding rail 308 and the pulley 309 are arranged, so that the pulley 309 can slide along the sliding rail 308 to drive the mounting seat 303 to integrally slide.

As shown in fig. 1-12, in some embodiments of the present invention, the mounting base 303 is rotatably provided with a driving shaft 310, a pulley 309 is provided on the driving shaft 310, and the mounting base 303 is provided on a driving motor 311 for driving the driving shaft 310 to rotate. The driving motor 311 is arranged on the mounting seat 303, a transmission shaft of the driving motor 311 is provided with a first chain wheel 312, and a driving shaft 310 is provided with a second chain wheel 313; a chain 314 is further included, and the chain 314 is engaged with the first sprocket 312 and the second sprocket 313, respectively.

So accessible actuating motor 311 drive first sprocket 312 rotates, and first sprocket 312 passes through chain 314 and drives second sprocket 313 and rotate, so in order to drive shaft 310 and pulley 309 and rotate, so be convenient for drive the whole slide along slide rail 308 of water conservancy diversion subassembly through pulley 309, convenient operation.

As shown in fig. 1 to 12, in some embodiments of the present invention, a material inlet 315 is disposed at the top of the vertical dryer 301, the material inlet 315 is located below the airflow directing assembly, a slope 316 is disposed at the top of the vertical dryer 301, the material inlet 315 is located at the lowest position of the slope 316, and the slope 316 is located below the airflow directing assembly.

According to the invention, the top of the vertical dryer 301 is provided with the feed inlet 315, the feed inlet 315 is positioned below the flow guide assembly, so that materials guided by the flow guide assembly and falling can fall into the feed inlet 315 and fall into the vertical dryer 301 through the feed inlet 315 for drying, and the operation is convenient. According to the invention, the inclined plane 316 is arranged, so that the materials guided and dropped from the guide assembly can slide to the position of the feed inlet 315 along the inclined plane 316, the materials can conveniently drop into the vertical dryer 301 through the feed inlet 315 for drying, and the operation is convenient.

As shown in fig. 1-12, in some embodiments of the present invention, the above-mentioned silo storage system comprises a second hopper 201, a third conveyor belt 206 and a fourth conveyor belt 209 are disposed above the second hopper 201, and the fourth conveyor belt 209 is disposed between the second hopper 201 and the third conveyor belt 206; the device further comprises a mounting assembly, and the fourth conveying belt 209 is arranged on the mounting assembly in a reciprocating sliding mode.

The mounting assembly comprises a first support 210 and a track 211 arranged on the first support 210, the fourth conveying belt 209 is provided with a second support frame 212, the second support frame 212 is provided with a sliding block 213, and the sliding block 213 is arranged on the track 211 in a sliding manner. The slider 213 is provided with a power assembly for driving the slider 213 to slide back and forth along the rail 211. The power assembly includes a motor 214 disposed on the slider 213 and a roller 215 fixed to a transmission shaft of the motor 214, and the roller 215 is disposed on the rail 211.

According to the invention, the second hopper 201 is arranged, so that the dried materials can be conveniently stored through the second hopper 201. After storage, the second hopper 201 needs to be moved by a transport vehicle to be transported. The quantity of the second hopper 201 of this embodiment is four, when fourth second hopper 201 charges, fourth conveyer belt 209 slides along the installation component, can remove the discharge end of fourth conveyer belt 209 to fourth second hopper 201 top, and the material that falls onto fourth conveyer belt 209 from third conveyer belt 206 this moment transports through fourth conveyer belt 209 to carry the material to fourth second hopper 201 top can, the material drops from the discharge end of fourth conveyer belt 209 and gets into in the fourth second hopper 201 this moment. Similarly, when the third second hopper 201 is loaded, the discharge end of the fourth conveyor 209 may be moved to above the third second hopper 201.

Therefore, when the fourth conveying belt 209 is required to slide, the roller 215 can be driven to rotate by the motor 214, and at the moment, the roller 215 moves along the track 211 to further drive the sliding block 213, the second supporting frame 212 and the fourth conveying belt 209 to slide together, so that the position of the fourth conveying belt 209 can be adjusted conveniently.

It should be noted that the structure of the second hopper 201 of the present embodiment is the same as that of the first hopper 101, and is not described herein again.

As shown in fig. 1-12, in some embodiments of the present invention, the sidewall of the roller 215 is provided with a circular groove along the circumference of the roller 215, the top of the track 211 is convex arc, and the top of the track 211 is embedded in the groove. This facilitates contact between the track 211 and the roller 215, which facilitates movement of the roller 215 along the track 211.

As shown in fig. 1-12, in some embodiments of the present invention, a fifth conveyor belt 406 is disposed between temporary storage bin 401 and blender 402, between blender 402 and ball press machine 403, and between ball press machine 403 and second screen assembly 405. According to the invention, the fifth conveying belt 406 is arranged, so that materials can be conveniently conveyed among various devices.

In summary, an embodiment of the present invention provides a process for manufacturing return fines pellet, which includes

screening the mixed material by a first screen assembly 404;

pressing the stirred material into ball blocks by a ball press 403;

screening the pellet material through a second screening assembly 405;

While the present invention has been described with reference to the preferred embodiments, it is to be understood that the invention is not limited to the details of the foregoing illustrative embodiments, and that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof.

The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned. Various modifications and alterations to this invention will become apparent to 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.

Claims

1. A manufacturing process of return fines pellet is characterized in that: comprises that

screening the mixed materials through a first screening component;

stirring the screened materials by a stirrer;

pressing the stirred material into ball blocks by a ball press;

2. The process of manufacturing return fines briquette according to claim 1, characterized in that: before the ball material is dried, the ball material is sieved by the second sieving component.

3. The process of manufacturing return fines briquette according to claim 1, characterized in that: when the screened materials are stirred by the stirrer, the adhesive is added into the materials.

4. The process of manufacturing return fines briquette according to claim 1, characterized in that: before four materials of sinter return ores, iron scales, iron fine powder or steel slag powder and dust removal ash are mixed, quantitative feeding is carried out on various materials in a corresponding proportion through a quantitative feeding system.

5. The process of manufacturing return fines briquette according to claim 4, wherein: the quantitative feeding system comprises a first hopper with an opening at the bottom, and the first hopper is provided with a baffle for shielding the opening at the bottom of the first hopper and a driving assembly for driving the baffle to slide in a reciprocating manner in a sliding manner; the hopper is provided with an installation frame, the installation frame is provided with two oppositely arranged sliding chutes, and two sides of the baffle are respectively arranged in the sliding chutes in a sliding manner; the drive assembly comprises a hydraulic lever, the hydraulic lever is arranged on the mounting frame, and the telescopic end of the hydraulic lever is connected with the baffle.

6. The process of manufacturing return fines briquette according to claim 5, characterized in that: a first conveying belt is arranged below the first hopper, a plurality of material receiving boxes are arranged at the top of the conveying belt and correspond to the first hopper one to one, the material receiving boxes are arranged below the first hopper, and the first screening assembly is arranged at one end, far away from the first hopper, of the first conveying belt; be equipped with conical bearing platform in the first hopper, the inside cavity of bearing platform, bearing platform lateral wall be equipped with the defeated material hole of first hopper bottom opening intercommunication.

7. The process of manufacturing return fines briquette according to claim 1, characterized in that: the first screening assembly comprises a screen, a first support frame and a rotating shaft which is rotatably arranged on the first support frame, the rotating shaft is provided with a plurality of support rods, the screen is in a circular truncated cone shape, and the screen is sleeved outside the rotating shaft and fixed on the support rods; the first support frame is provided with a driving motor, and the driving motor is in transmission connection with the rotating shaft; the two ends of the screen are open, a diversion sleeve is sleeved at one end of the screen with the larger diameter, the diversion sleeve is fixed on the first support frame, and a diversion opening is formed in the bottom of the diversion sleeve.

8. The process of manufacturing return fines briquette according to claim 1, characterized in that: a second conveying belt for conveying materials and a flow guide assembly for uniformly guiding the materials on the second conveying belt to the vertical dryer are arranged at the top of the vertical dryer;

the flow guide assembly comprises a mounting seat arranged at the top of the vertical dryer in a sliding mode and a baffle arranged on the mounting seat, and the baffle is arranged above the second conveying belt.

9. The process of manufacturing return fines briquette according to claim 8, wherein: the mounting seat is provided with a plurality of rotating rollers, the rotating rollers are arranged below the baffle, and a belt body at the top of the second conveying belt penetrates through the space between the rotating rollers and the baffle; the mount pad is equipped with the stopper of two relative settings, the top area body of second conveyer belt is located two between the stopper.

10. The return fines briquette manufacturing process according to claim 9, characterized in that: the mounting seat is provided with a material diversion hopper matched with the baffle, the top of the vertical dryer is provided with a slide rail, the mounting seat is provided with a pulley matched with the slide rail, and the sliding direction of the pulley is consistent with the conveying direction of the second conveying belt; the mounting seat is rotatably provided with a driving shaft, the pulley is arranged on the driving shaft, and the mounting seat is arranged on a driving motor for driving the driving shaft to rotate; the driving motor is arranged on the mounting seat, a transmission shaft of the driving motor is provided with a first chain wheel, and the driving shaft is provided with a second chain wheel; the chain is meshed with the first chain wheel and the second chain wheel respectively; the top of the vertical dryer is provided with a feed inlet, the feed inlet is positioned below the flow guide assembly, the top of the vertical dryer is provided with an inclined plane, the feed inlet is positioned at the lowest part of the inclined plane, and the inclined plane is positioned below the flow guide assembly.