阅读说明：本技术 一种短流程混矿加工工艺及系统 (Short-flow mixed ore processing technology and system ) 是由 刘建业 邓宇 蒋谋锋 于 2020-05-26 设计创作，主要内容包括：本发明公开了一种短流程混矿加工工艺及系统,属于散状物料处理技术领域,本工艺是将存放于一次料场内的不同品种物料按预期比例通过精准控制取料量方式同步取出并在输送系统中经合流匀化、转运匀化及布料匀化后使所需混矿产品在粒度及成分上得以充分匀化。本系统包括物料输入线、一次料场、堆取料机和物料输出线,所述物料输出线上设有依次连接的合流匀化机构、转运匀化机构和布料匀化机构。本发明混矿加工工艺及系统简洁可行,较现有的钢铁厂矿石混匀配料系统生产流程大为简化,无需设置混匀配料设施和混匀料场(二次料场)进行平铺堆取作业,减少了建设成本和运营成本。(The invention discloses a short-flow ore mixing processing technology and a short-flow ore mixing processing system, which belong to the technical field of bulk material processing. The system comprises a material input line, a primary stock ground, a stacker-reclaimer and a material output line, wherein the material output line is provided with a confluence homogenizing mechanism, a transfer homogenizing mechanism and a distribution homogenizing mechanism which are sequentially connected. The mixed ore processing technology and the system are simple and feasible, the production flow is greatly simplified compared with the existing ore mixing and batching system of the iron and steel plant, a mixing and batching facility and a mixing and batching yard (secondary yard) are not required to be arranged for flat paving and stacking operation, and the construction cost and the operation cost are reduced.)

1. A short-flow ore mixing process is characterized in that different types of materials stored in a primary material yard are synchronously taken out according to expected proportions in a mode of accurately controlling the material taking amount, and are subjected to confluence homogenization, transportation homogenization and distribution homogenization in a conveying system to fully homogenize the required ore mixing products on the particle size and the components.

2. The short-flow ore-mixing processing technology according to claim 1, wherein the confluence homogenization is to carry out confluence breaking and gathering on the taken materials at the confluence point of the material flows, and a primary confluence homogenization and a secondary confluence homogenization are combined, wherein the primary confluence homogenization is to carry out hedging on the material flows of at least two different materials, and the secondary confluence homogenization is to carry out hedging on the material flows of at least two materials after primary confluence homogenization.

3. The short-flow mixed ore processing technology of claim 2, wherein the transport homogenization is to stir the whole material of the material flow after the second confluence homogenization.

4. The short-run ore-mixing process according to any one of claims 1-3, wherein the distribution homogenization is stacking the transported and homogenized material flows.

5. The short-process mixed ore processing technology according to claim 4, characterized in that different types of materials are separately stacked on the planned stacking positions on different strips of the primary stock yard according to expected proportions when being input into the primary stock yard.

6. The utility model provides a short flow ore mixing processing system, includes material input line (1), a stock ground (2), stacker-reclaimer (3) and material output line, its characterized in that, be equipped with the confluence homogenization structure, transport homogenization mechanism (6) and the cloth homogenization mechanism (7) that connect gradually on the material output line, the stacker-reclaimer is many for take out different varieties material through accurate control material taking quantity mode in step and to the material output line on according to expected proportion, confluence homogenization structure is used for this different varieties material to merge at material confluence point and breaks up and the material stream gathers together, it is used for the material stream of this confluence homogenization structure output of complete material stirring to transport homogenization mechanism, cloth homogenization mechanism is used for the material stream of this transportation homogenization mechanism output of range upon range of stacking.

7. The short-run ore-mixing processing system according to claim 6, wherein the confluence homogenizing mechanism comprises a primary confluence homogenizing mechanism (4) for hedging at least two different kinds of materials and a secondary confluence homogenizing mechanism (5) for hedging at least two streams outputted from the primary confluence homogenizing mechanism.

8. The short-flow ore mixing processing system according to claim 7, wherein the primary confluence homogenizing mechanism comprises a first hopper (4.1), a counterattack material collecting plate (4.2) and a first downstream conveyer belt (4.3), and the secondary confluence homogenizing mechanism comprises a second hopper (5.1), a first material dividing cone (5.2), a mixer (5.3) and a second downstream conveyer belt (5.4), wherein the first hopper is connected with the second hopper through the first downstream conveyer belt arranged below the first hopper, and the counterattack material collecting plate for assisting the dispersed material flow is arranged in the first hopper; a first material dividing cone for assisting in material flow scattering and a mixer for mixing the sections of the whole material flows are arranged in the second hopper from top to bottom, and a second downstream conveying belt is arranged below the second hopper; the mixer is a bidirectional hook-tooth type or roller-tooth type mixer.

9. The short-flow ore mixing processing system according to claim 8, wherein the transfer homogenizing mechanism is composed of a third funnel (6.1), a second material dividing cone (6.2), a stirrer (6.3) and a third downstream conveyer belt (6.4), the third funnel is connected with the second funnel through the second downstream conveyer belt, the third downstream conveyer belt is arranged below the third funnel, the second material dividing cone for assisting the dispersed material flow and the stirrer for stirring the whole material are arranged in the third downstream conveyer belt from top to bottom, and the stirrer is a spiral stirrer.

10. The short-flow ore-mixing processing system according to claim 9, wherein the distribution homogenizing mechanism is composed of a fourth hopper (7.1) and a distribution vehicle (7.2), the fourth hopper is connected with the third hopper through a third downstream conveyor belt, the distribution vehicle for distributing material in a reciprocating manner is arranged on the fourth hopper to form stacked distribution for the material flow in the fourth hopper, and the fourth hopper is an elongated bin.

Technical Field

The invention belongs to the technical field of bulk material treatment, and particularly relates to a short-flow ore mixing processing technology and a short-flow ore mixing processing system for ore materials, which are suitable for raw material production procedures in the fields of ore processing trade and ferrous metallurgy.

Background

The iron and steel metallurgy has high requirements on the components and the granularity of iron ore materials, and a blending and batching facility and a blending stock ground (secondary stock ground) are mostly configured in the existing comprehensive stock ground of an iron and steel enterprise besides the primary stock ground so as to blend and process different types of materials. The production process comprises the steps that after materials are stored in a primary stock ground, the configured material taking equipment conveys different types of materials to a blending proportioning tank of a large storage bin structure in different time intervals, the materials are proportioned by the quantitative proportioning equipment below the tank, and then the materials are conveyed to a blending stock ground to be tiled, stacked and taken for the second time. Although the production mode can obviously improve the uniformity and quality stability of the materials, the construction cost of the batching facility and the blending stock ground facility is huge, and particularly, a closed factory building and a large-scale piling and taking device are required to be built in the blending stock ground. Meanwhile, the defects of multiple material carrying, complex production flow, large number of production equipment, high operation cost and the like exist.

Disclosure of Invention

In view of the above problems, the present invention aims to provide a short-flow ore-mixing processing technology and system to solve the problems of long and complicated ore-mixing flow, various processing equipment and high operation cost.

The invention is realized by the following technical scheme:

the invention provides a short-flow ore mixing processing technology, which is characterized in that different types of materials stored in a primary stock yard are synchronously taken out according to an expected proportion in a mode of accurately controlling the material taking amount, and the required ore mixing products are fully homogenized in granularity and components after confluence homogenization, transportation homogenization and distribution homogenization in a conveying system.

Preferably, the confluence homogenization is to carry out confluence scattering and confluence on the taken materials at the confluence point of the material flow, and a primary confluence homogenization and a secondary confluence homogenization are combined, wherein the primary confluence homogenization is to carry out hedging on the material flows of at least two different materials, and the secondary confluence homogenization is to carry out hedging on the material flows after the primary confluence homogenization.

Preferably, the transport homogenization is to perform whole material stirring on the stream after the second confluence homogenization.

Preferably, the material homogenization is to stack the transported and homogenized material flows in a stack.

Preferably, different kinds of materials are split and piled on the planned piling positions on different strips of the primary stock yard according to expected proportions when being input into the primary stock yard.

The invention also provides a short-flow ore mixing processing system, which comprises a material input line, a primary stock ground, a stacker-reclaimer and a material output line, wherein the material output line is provided with a confluence homogenization structure, a transfer homogenization mechanism and a distribution homogenization mechanism which are sequentially connected, the stacker-reclaimer is provided with a plurality of the materials, and is used for synchronously taking out different types of materials according to expected proportions and delivering the materials to a material output line in a manner of accurately controlling the material taking quantity, the confluence homogenization structure is used for confluence scattering and material flow gathering of the different types of materials at a material flow confluence point, the transfer homogenization mechanism is used for stirring the material flow output by the confluence homogenization structure with a whole material, and the distribution homogenization mechanism is used for stacking the material flow output by the transfer homogenization mechanism in a stacking manner.

Further, the confluence homogenizing structure comprises a primary confluence homogenizing mechanism for carrying out hedging on at least two different kinds of materials and a secondary confluence homogenizing mechanism for carrying out hedging on at least two material flows output by the primary confluence homogenizing mechanism.

Further, the primary confluence homogenizing mechanism consists of a first funnel, a counterattack material collecting plate and a first downstream conveying belt, the secondary confluence homogenizing mechanism consists of a second funnel, a first distribution cone, a mixer and a second downstream conveying belt, the first funnel is connected with the second funnel through the first downstream conveying belt arranged below the first funnel, and the counterattack material collecting plate used for assisting in scattering material flow is arranged in the first funnel; a first material dividing cone for assisting in material flow scattering and a mixer for mixing the sections of the whole material flows are arranged in the second hopper from top to bottom, and a second downstream conveying belt is arranged below the second hopper; the mixer is a bidirectional hook-tooth type or roller-tooth type mixer.

Further, transport homogenization mechanism and constitute by third funnel, second branch material awl, mixer, third low reaches conveyer belt, the third funnel passes through the second low reaches conveyer belt to be connected with the second funnel, sets up the third low reaches conveyer belt below it, and top-down is equipped with the second that is used for supplementary material flow that scatters and divides the material awl and be used for the mixer of complete material stirring in it, the mixer is spiral mixer.

Furthermore, the distributing and homogenizing mechanism consists of a fourth hopper and a distributing vehicle, the fourth hopper is connected with the third hopper through a third downstream conveyer belt, a distributing vehicle for reciprocating traveling distribution to form stacked distribution on the material flow in the fourth hopper is arranged on the fourth hopper, and the fourth hopper is an elongated storage bin.

The invention has the advantages that:

1. after the materials are stockpiled in the primary stock yard, the invention processes different types of ores into single type of high-quality mixed mineral products by controlling input and output flow and assisting physical modes to carry out mixing operation so as to replace the flat piling operation carried out by a mixing and batching facility and a mixing stock yard (secondary stock yard), thereby reducing the engineering construction investment and the operation flow and operation cost.

2. The mixed ore processing technology and the system are simple and feasible, and the production flow is greatly simplified compared with the production flow of the existing ore mixing and batching system of the iron and steel plant.

3. The invention is suitable for raw material production procedures in the fields of ore processing trade and ferrous metallurgy.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.

Drawings

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings, in which:

FIG. 1 is a flow chart of the mixed ore processing process of the present invention;

FIG. 2 is a structural view of the primary confluence homogenizing mechanism of the present invention;

FIG. 3 is a block diagram of the secondary flow-joining homogenization mechanism of the present invention;

FIG. 4 is a block diagram of the transport homogenization mechanism of the present invention;

FIG. 5 is a block diagram of the cloth homogenizing mechanism of the present invention;

reference numerals: the system comprises a logistics input line 1, a primary stock ground 2, a stacker-reclaimer 3, a primary confluence homogenizing mechanism 4, a secondary confluence homogenizing mechanism 5, a transfer homogenizing mechanism 6 and a distribution homogenizing mechanism 7; a first funnel 4.1, a counterattack material collecting plate 4.2 and a first downstream conveyer belt 4.3; a second hopper 5.1, a first material distribution cone 5.2, a mixer 5.3 and a second downstream conveyer belt 5.4; a third hopper 6.1, a second material dividing cone 6.2, a stirrer 6.3 and a third downstream conveyer belt 6.4; a fourth hopper 7.1 and a distributing vehicle 7.2.

Detailed Description

The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention in a schematic way, and the features in the following embodiments and examples may be combined with each other without conflict.

Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in the drawings in which there is no intention to limit the invention thereto; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not an indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes, and are not to be construed as limiting the present invention, and the specific meaning of the terms may be understood by those skilled in the art according to specific situations.

The invention relates to a short-flow ore mixing processing technology, which is characterized in that different types of materials stored in a primary stock yard are synchronously taken out according to an expected proportion in a mode of accurately controlling the material taking amount, and the required ore mixing products are fully homogenized in granularity and components after confluence homogenization, transportation homogenization and distribution homogenization in conveying. Namely, different kinds of ores are shunted to a planned piling position in a primary yard 2 through a material input line 1, a plurality of stacker-reclaimers 3 are synchronously controlled according to planned proportion to take and output materials according to set flow and combine the materials for output, the material flows through a transfer point are converged, scattered and gathered, the material flows impact and are mixed oppositely, and the materials are shunted and mixed for transferring, so that the function of mixing the materials is achieved; meanwhile, the finished product is delivered to the charging process and is loaded and unloaded through the material distribution, and finally, the processed material is fully homogenized on the granularity and the components.

As shown in fig. 1, the processing system involved in the short-flow mixed-ore processing process in the present embodiment includes: the device comprises a material input line 1, a primary stock ground 2, a stacker-reclaimer 3 and a material output line, wherein the material output line is provided with a confluence homogenization structure, a transfer homogenization mechanism 6 and a distribution homogenization mechanism 7 which are connected in sequence, the stacker-reclaimer 3 is provided with a plurality of the confluence homogenization mechanisms and is used for synchronously taking out different types of materials according to expected proportions and delivering the different types of materials to a material output line in a manner of accurately controlling the material taking quantity, the confluence homogenization structure is used for confluence breaking and gathering of the different types of materials at a material flow confluence point, the device comprises a primary confluence homogenization mechanism 4 for carrying out hedging on two different types of materials and a secondary confluence homogenization mechanism 5 for carrying out hedging on two streams output by the primary confluence homogenization mechanism 4, the transfer homogenization mechanism 6 is used for stirring the streams output by the secondary confluence homogenization mechanism 5 with full materials, and the distribution homogenization mechanism 7 is used for stacking the streams output by the transfer homogenization mechanism 6 in a laminated, thereby obtaining the mixed mineral product of four materials. Under different requirements, more than two different kinds of materials can be subjected to primary confluence homogenization, and more than two material flows subjected to primary confluence homogenization are subjected to secondary confluence homogenization to obtain more than four mixed mineral products.

As shown in fig. 2-5, specifically, the primary confluence homogenizing mechanism 4 consists of a first funnel 4.1, a counterattack material collecting plate 4.2 and a first downstream conveyer belt 4.3, the secondary confluence homogenizing mechanism 5 consists of a second funnel 5.1, a first material distribution cone 5.2, a mixer 5.3 and a second downstream conveyer belt 5.4, the transfer homogenizing mechanism 6 consists of a third funnel 6.1, a second material distribution cone 6.2, a stirrer 6.3 and a third downstream conveyer belt 6.4, and the distribution homogenizing mechanism 7 consists of a fourth funnel 7.1 and a distribution vehicle 7.2; the first hopper 4.1 is connected with the second hopper 5.1 through a first downstream conveying belt 4.3 arranged below the first hopper, and is internally provided with counterattack material collecting plates 4.2 used for assisting in scattering material flow, the counterattack material collecting plates are arranged into a plurality of blocks and are arranged at proper positions on the inner wall of the first hopper so as to mutually collide and rebound the material flow falling into the first hopper and assist in scattering the material flow; a first material dividing cone 5.2 for assisting the dispersed material flow and a mixer 5.3 for mixing the section of the whole material flow are arranged in the second hopper 5.1 from top to bottom, and a second downstream conveying belt 5.4 is arranged below the first hopper; the mixer 5.3 adopts a bidirectional hook tooth type or roller tooth type mixer; the third funnel 6.1 is connected with the second funnel 5.1 through a second downstream conveyer belt 5.4, a third downstream conveyer belt 6.4 is arranged below the third funnel, a second material dividing cone 6.2 for assisting the dispersed material flow and a stirrer 6.3 for stirring the whole materials are arranged in the third funnel from top to bottom, and the stirrer 6.3 adopts a spiral stirrer; the fourth hopper 7.1 is connected with the third hopper 6.1 by a third downstream conveyor belt 6.4, on which a distribution car 7.2 is arranged for reciprocating distribution to form a stack of material flows in the fourth hopper 7.1, and the fourth hopper is a long silo.

In this way, different incoming material flows are converged at the converging point of the primary converging mechanism 4, the material flows in the first hopper 4.1 are impacted and scattered, the material flows are scattered by the counterattack material accumulation plate 4.2 in the hopper, the flow direction of the material flows is changed, the contact surface of different materials is enlarged, and the scattered material flows are gathered again and output to the first downstream conveying belt 4.3; then, converging the opposite material flows at the converging point of the secondary converging mechanism 5, impacting and scattering the material flows in a second hopper 5.1, scattering the materials by using the conicity of a first material-dividing cone 5.2, mixing the full material flow sections by using a bidirectional hook-tooth type or roller-tooth type material mixer in the middle of the second hopper, gathering the mixed materials and outputting the mixed materials to a second downstream conveying belt 5.4; then, arranging a second material dividing cone 6.2 in a third hopper 6.1 at the front end of the material flow of the transfer homogenizing mechanism 6 for dispersing the material flow, stirring the whole material by a spiral stirrer in the third hopper, and gathering and outputting the stirred material to a third downstream conveyer belt 6.4; finally, a long stock bin 7.1 is arranged at a material distribution homogenizing mechanism 7 in the finished product external material charging process, and material distribution is carried out in a reciprocating way by controlling a material distribution vehicle 7.2 at the top of the stock bin, so that material flow in the stock bin is in a laminated shape to homogenize.

The following describes in detail the process of mixing and homogenizing different kinds of materials by the short-process ore mixing processing technology, including:

1) the materials are input and are shunted and stacked on the planned stacking positions of different strips of the primary stock ground according to the expected proportion;

2) the material output synchronously takes out different types of materials according to an expected proportion in a manner of accurately controlling the material taking amount and merges the materials onto a material conveying line, and meanwhile, the conveying speed of each material is ensured to meet the expected proportion of mixing;

3) converging and scattering the material flow at the material flow converging point, and converging the material flow to homogenize different kinds of materials in a physical mode; a counter-impact material collecting plate is arranged in a first hopper at the primary flow homogenizing and merging point of the material flow, the material flow is dispersed, the flow direction of the material flow is changed, and the contact surfaces of different materials are increased;

4) decomposing the output material flow after primary homogenization into double flows, converging, carrying out opposite impact on the material flow at a converging point, and carrying out mixing operation to fully mix different types of materials, so as to carry out secondary homogenization and form a whole material flow; a second hopper is arranged at the secondary homogenization confluence point of the material flow, a first material distribution cone is arranged in the second hopper, and a bidirectional hook tooth type or roller tooth type mixer is arranged below the first material distribution cone for mixing;

5) distributing and mixing materials are arranged at the conveying and transferring point after confluence, so that different types of materials are transferred and homogenized; a second material dividing cone is arranged in a third hopper at the material flow transferring homogenization point, and a spiral material mixer is arranged below the second material dividing cone for mixing;

6) and a long stock bin is arranged in the process of sending and loading the finished products, and the stock is distributed by controlling the reciprocating movement of a bin surface distribution vehicle, so that the stock flow in the bin is in a laminated state, and the homogenization is realized.

Thus, the material input into the factory is conveyed to different strips in a primary stock ground by adopting the belt conveyor for piling and storing, and the same variety can be separately piled and stored on corresponding piling positions in the strips according to the expected proportion. The material output synchronously takes out different kinds of materials according to an expected proportion in a mode of accurately controlling the material taking amount of the stacker-reclaimer and merges the materials to a conveying line. The output line is designed into a double-material flow converging arrangement mode, fully mixed materials are obtained through primary flow converging homogenization, secondary flow converging homogenization and transfer homogenization processing, and the materials are fully homogenized in particle size and components through material distribution homogenization processing in a tail end finished product outward loading process.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and it is apparent that those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.