CN219670596U - Roasting device for lithium ores - Google Patents

Abstract

The disclosure provides a roasting device for lithium ores, and relates to the technical field of lithium salt preparation. The roasting device comprises: a housing and a break-up mechanism; the shell comprises a feed inlet through which materials enter the shell; the scattering mechanism is arranged in the shell and is close to the position of the feed inlet, a height difference exists between the material and the scattering mechanism, and the material is scattered on the scattering mechanism under the action of gravity so as to form a uniform material curtain in the shell; the scattering mechanism comprises a plurality of scattering pieces, the plurality of scattering pieces are distributed in an array mode, each scattering piece is of a columnar structure, fixing holes are symmetrically formed in the shell, and the scattering pieces are fixed to the shell through the fixing holes. The utility model provides a roasting device, through set up the mechanism of scattering on roasting device, this mechanism of scattering comprises a plurality of array distribution's piece of scattering, and the material is acted on the mechanism of scattering through self gravity, and the material curtain of formation is more even, and the mechanism of scattering is difficult for taking place to block up, simple structure, cost of manufacture are low, convenient to overhaul and change.

Description

Roasting device for lithium ores

Technical Field

The disclosure relates to the technical field of lithium salt preparation, in particular to a roasting device for lithium ores.

Background

Lithium is an important energy metal, and with the rapid development of new energy, the demand for lithium is increasing. In the preparation process of the lithium salt, spodumene or lithium concentrate is further processed to obtain lithium salt such as lithium carbonate or lithium hydroxide, while the spodumene or lithium concentrate serving as a raw material has a larger volume, and before processing, the spodumene or lithium concentrate needs to be subjected to fine crushing treatment so as to reduce the problems of overburning of materials and the like.

At present, the materials are scattered by a dead weight scattering device or a mechanical scattering device. The self-weight scattering device uses a scattering plate to scatter materials, the scattering plate is easy to block, and the scattering of the materials is uneven; when the mechanical scattering device is used for scattering materials, the materials are required to be in direct contact with the mechanical scattering device, and the materials are scattered by utilizing the high-speed rotation principle.

It should be noted that the information disclosed in the above background section is only for enhancing understanding of the background of the present disclosure and thus may include information that does not constitute prior art known to those of ordinary skill in the art.

Disclosure of Invention

The utility model aims at overcoming the defects of the prior art, and provides a roasting device for lithium ores, which has simple structure and low energy consumption, and solves the problems of easy blockage, uneven scattering of materials and the like.

Other features and advantages of the present disclosure will be apparent from the following detailed description, or may be learned in part by the practice of the disclosure.

According to one aspect of the present disclosure there is provided a roasting apparatus for lithium ore, the apparatus comprising: the shell comprises a feed inlet through which materials enter the interior of the shell;

the scattering mechanism is arranged in the shell and close to the position of the feed inlet, a height difference is formed between the material and the scattering mechanism, and the material is scattered on the scattering mechanism under the action of gravity so as to form a uniform material curtain in the shell;

the scattering mechanism comprises a plurality of scattering pieces, the scattering pieces are distributed in an array mode, each scattering piece is of a columnar structure, fixing holes are symmetrically formed in the shell, and the scattering pieces are fixed on the shell through the fixing holes.

In some embodiments of the disclosure, based on the foregoing solution, the number of the scattering members is four, and cross sections of the four scattering members in the vertical direction form a diamond-shaped outer contour, and the cross section of each scattering member is located at one corner of the diamond.

In some embodiments of the disclosure, based on the foregoing solution, a distance between a center of the scattering mechanism in a vertical direction and the feed inlet is 1000mm to 1500mm.

In some embodiments of the disclosure, based on the foregoing solution, the breaking mechanism further includes a fixing portion, the fixing portion has a fixing surface, the fixing surface is perpendicular to an axial direction of the breaking member, the breaking member has a first end and a second end opposite to each other, the first end is connected to the fixing surface, and the breaking member is driven to move along the axial direction by pushing and pulling the fixing portion.

In some embodiments of the disclosure, based on the foregoing solution, the breaking mechanism further includes two sleeves, where the two sleeves are respectively sleeved on the first end and the second end, and an outer wall of the sleeve is attached to an inner wall of the fixing hole.

In some embodiments of the disclosure, the fixing portion and the sleeve are connected by a flange based on the foregoing.

In some embodiments of the disclosure, based on the foregoing aspect, the breaking mechanism further includes a plurality of reinforcing portions respectively disposed at the first end of the breaking member, the second end of the breaking member, and a middle portion of the breaking member, the reinforcing portions being for supporting the breaking member and for increasing the strength of the device.

In some embodiments of the disclosure, based on the foregoing, the break-up member is a cast member.

In some embodiments of the disclosure, based on the foregoing, the apparatus further comprises an access portion including an access door disposed on the housing, the access portion for accessing the breaking mechanism.

In some embodiments of the disclosure, based on the foregoing, the apparatus further comprises a heat exchange conduit, the material being subjected to heat exchange with a heat exchange medium within the heat exchange conduit to raise the temperature of the material.

According to the roasting device, the scattering mechanism is arranged in the shell and consists of a plurality of scattering pieces distributed in an array, each scattering piece is of a columnar structure, the scattering mechanism is fixed on the shell, a height difference exists between materials and the scattering mechanism, the materials are scattered on the scattering mechanism under the action of self gravity, the scattering mechanism is suitable for materials with various particle diameters, the scattered materials can form uniform material curtains, and the materials are not easy to block on the scattering mechanism; in addition, the scattering mechanism is simple in structure, low in manufacturing cost and easy to overhaul and replace, and a transmission device is not required to drive.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure. It will be apparent to those of ordinary skill in the art that the drawings in the following description are merely examples of the disclosure and that other drawings may be derived from them without undue effort.

Fig. 1 is an overall schematic view of a roasting apparatus for lithium ores in an exemplary embodiment of the present disclosure.

Fig. 2 is a schematic structural view of a breaking mechanism in an exemplary embodiment of the present disclosure.

Wherein reference numerals are as follows:

100: a scattering mechanism; 101: a scattering member; 1011: a first end of the scattering member; 1012: a second end of the scattering member; 102: a fixing part; 1021: a fixing surface; 103: a sleeve; 104: a flange; 105: a reinforcing part; 200: a housing; 210: a fixing hole; 201: a feed inlet; 202: a discharge port; 300: an access door; 400: a heat exchange pipeline; 401: an air inlet; 402: an air outlet; 500: and (5) lining to build holes.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus detailed descriptions thereof will be omitted. Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale.

Although relative terms such as "upper" and "lower" are used in this specification to describe the relative relationship of one component of an icon to another component, these terms are used in this specification for convenience only, such as in terms of the orientation of the examples described in the figures. It will be appreciated that if the device of the icon is flipped upside down, the recited "up" component will become the "down" component. When a structure is "on" another structure, it may mean that the structure is integrally formed with the other structure, or that the structure is "directly" disposed on the other structure, or that the structure is "indirectly" disposed on the other structure through another structure.

The terms "a," "an," "the," "said" and "at least one" are used to indicate the presence of one or more elements/components/etc.; the terms "comprising" and "having" are intended to be inclusive and mean that there may be additional elements/components/etc. in addition to the listed elements/components/etc.; the terms "first," "second," and "third," etc. are used merely as labels, and do not limit the number of their objects.

In the related art, the breaking device may be classified into a mechanical breaking device and a non-mechanical breaking device. The mechanical scattering device is used for breaking and scattering materials placed in the mechanical scattering device by utilizing high-speed rotation of a machine, the mechanical scattering device is usually exposed in a high-temperature and high-dust smoke environment, parts such as bearings in the device are burnt due to a thermal bridge effect, the materials are in direct contact with the device, after long-term use, the mechanical scattering device is severely worn, even the device is scrapped, and the manufacturing cost is increased.

For a non-mechanical scattering device, for example, a dead weight scattering device, a scattering plate is arranged in the device, and the material directly impacts on the scattering plate by utilizing the weight of the material or the height difference between the material and the scattering plate so as to scatter the material. However, for larger materials or materials with poor fluidity, the scattering effect of the scattering method is not ideal, the uniformity of the formed scattered materials is poor, and the influence on heat exchange between the subsequent materials and a heat exchange medium is large.

Therefore, the utility model provides a roasting device for lithium ore, can improve the homogeneity that the material was broken up, and simple structure does not have the transmission obstacle, low in manufacturing cost, be convenient for change and maintenance.

Embodiments of the present disclosure provide a roasting apparatus for lithium ores, as shown in fig. 1, including: a housing 200 and a break-up mechanism 100.

Wherein the housing 200 includes a feed port 201 through which material enters the interior of the housing 200. The shell 200 may be formed by combining multiple sections of pipelines, as shown in fig. 1, the shell 200 may be formed by an air inlet pipeline, an air outlet pipeline and a material pipeline, wherein an air inlet 401 is arranged on the air inlet pipeline, and a heat exchange medium can enter the air inlet pipeline through the air inlet 401. An air outlet 402 is arranged on the air outlet pipeline, and the heat exchange medium and the dust-shaped material after heat exchange can enter the lower-stage heat exchange pipeline 400 through the air outlet 402 for further heat exchange. Be provided with feed inlet 201 on the material pipeline, the material can get into the inside of casing 200 through feed inlet 201, and for example, the material can be lithium concentrate, and the material passes through the feeder and gets into feed inlet 201 department, and the feeder can be the lock wind feeder, avoids the material to be blown off outside casing 200, guarantees that the material can all get into in the feed inlet 201, prevents the loss of material. The material channel is further provided with a discharge port 202, and the large-particle material can enter a lower-stage feeding chamber (not shown in the figure) through the discharge port 202, and in this disclosure, the lower-stage feeding chamber may be a hydraulic feeding chamber, and the large-particle material is further processed through the lower-stage feeding chamber, so that a specific processing process is not specifically described herein, but it should be understood that the processing process is within the technical scope applicable to those skilled in the art.

In the embodiment provided by the disclosure, the air inlet 401 of the shell 200 may be connected with a feeding chamber, and after the material enters the interior of the shell 200 through the feeding opening 201, the material may enter the feeding chamber through a material pipeline and an air inlet pipeline, enter a roasting kiln through the feeding chamber, and be roasted through the roasting kiln. It should be noted that other mechanisms or devices for handling materials may be provided between the feeding chamber and the kiln, which are not described in detail herein, but are also within the scope of the present disclosure.

The housing 200 may be formed by an integral molding method, or may be formed by a method of connecting a plurality of sections of pipes after being molded respectively, which is not particularly limited in the present disclosure.

The scattering mechanism 100 is disposed in the housing 200 and near the position of the feed inlet 201, and a height difference exists between the material and the scattering mechanism 100, and the material is scattered on the scattering mechanism 100 by gravity to form a uniform material curtain in the housing 200.

In the embodiment provided in this disclosure, the scattering mechanism 100 includes a plurality of scattering members 101, where the plurality of scattering members 101 are distributed in an array, each scattering member 101 has a columnar structure, the housing 200 is symmetrically provided with fixing holes 210, and the scattering members 101 are fixed on the housing 200 through the fixing holes 210.

The scattering member 101 may have a columnar structure, for example, the scattering member 101 may have a regular shape structure such as a cylinder shape or a prismatic shape, so that in order to reduce manufacturing cost, the scattering member 101 generally adopts a regular cylindrical structure for mass manufacturing of the scattering member 101 and versatility of manufacturing a mold. Of course, the scattering member 101 may be a columnar structure, and the present disclosure is not limited thereto. The axes of the plurality of dispersing elements 101 may be disposed in parallel or non-parallel, but in order to make the dispersing effect of the plurality of dispersing elements 101 better, the axes of the plurality of dispersing elements 101 are generally disposed in parallel.

The number of the scattering pieces 101 is multiple, the plurality of scattering pieces 101 are distributed in an array, the distribution form of the plurality of scattering pieces 101 in the shell 200 needs to meet the requirement that the scattering pieces 101 can uniformly scatter materials flowing through the shell 200, for example, the plurality of scattering pieces 101 are distributed in multiple layers in the axis direction of the material pipeline, and the materials flowing through the material pipeline can be scattered layer by layer through multiple layers, so that the uniformity of scattering of the materials is guaranteed. The number of the scattering members 101 of each layer may be set according to actual needs, and the present disclosure is not particularly limited.

The diffuser 101 may be a cast member. The cast part is a part obtained by casting a liquid metal into a casting cavity, after it has cooled and solidified. The scattering member 101 may be any one or more of a steel casting, an aluminum casting, a copper casting, an iron casting, and an aluminum alloy casting, and the present disclosure is not particularly limited. The length of the scattering member 101 may be determined according to the diameter of the cross section of the housing 200 in the horizontal direction, and the length of the scattering member 101 needs to be adapted to the diameter of the cross section of the housing 200, for example, the length of the scattering member 101 may be 2200mm to 2350mm, specifically 2200mm, 2210mm, 2220mm, 2230mm, 2240mm, 2250mm, 2260mm, 2270mm, 2280mm, 2290mm, 2300mm, 2310mm, 2320mm, 2330mm, 2340mm or 2350mm. The diameter of the scattering piece 101 can be selected according to actual design requirements, but the diameter of the scattering piece 101 is not too small, namely the length-diameter ratio of the scattering piece 101 is not too large, and the scattering piece 101 is slender and is easy to deform after being stressed due to the too large length-diameter ratio; the diameter of the scattering member 101 is not too large, that is, the length-diameter ratio of the scattering member 101 is not too small, which causes the scattering member 101 to be short and thick, and causes the gaps of the scattering members 101 after assembly to be small, so that the scattering member is easy to be blocked when scattering materials.

In the specific embodiment provided in the present disclosure, as shown in fig. 2, the number of the scattering members 101 may be four, and the cross sections of the four scattering members 101 in the vertical direction form a diamond-shaped outer contour, and the cross section of each scattering member 101 is located at one corner of the diamond shape. That is, the scattering pieces 101 are arranged in three layers on the axis direction of the material pipeline, the first layer can be one scattering piece 101, the second layer can be two scattering pieces 101, the third layer can be one scattering piece 101, the scattering pieces 101 positioned on the first layer and the third layer can be arranged along the axis direction of the material pipeline, the two scattering pieces 101 on the second layer can be arranged along the axis direction perpendicular to the material pipeline, the two scattering pieces 101 on the second layer are arranged close to the pipeline wall of the material pipeline, and the three layers of scattering pieces 101 can cover the diameter range of the pipeline to avoid scattering dead angles of the material. After the material enters the material pipeline through the feed inlet 201, the material is scattered by the three-layer scattering piece 101 in sequence, so that a uniform material curtain can be formed. Of course, the above embodiments are merely exemplary, and the actual structure of the breaking mechanism (such as the number and arrangement of the breaking members) may be designed according to the actual design requirement, and the disclosure is not limited in detail.

In the embodiment provided in the present disclosure, the distance between the center of the breaking mechanism 100 in the vertical direction and the feed port 201 is 1000mm to 1500mm. Since the material enters the housing 200 through the inlet 201, in order to make a height difference between the material and the breaking mechanism 100, a height difference between the breaking mechanism 100 and the inlet 201 may be formed. The height difference between the scattering mechanism 100 and the feeding port 201 is not too small, and the too small height difference can lead to insufficient scattering of materials; the height difference between the scattering mechanism 100 and the feeding port 201 is not suitable to be too large, and the manufacturing cost is increased due to the too large height difference, so that the distance between the center of the scattering mechanism 100 in the vertical direction and the feeding port 201 is 1000 mm-1500 mm, for example, 1000mm, 1100mm, 1200mm, 1300mm, 1400mm or 1500mm, and the phenomena that the material can be sufficiently scattered on the scattering mechanism 100 due to self weight and the material is intensively distributed or blown away can be avoided.

In the embodiment provided by the present disclosure, the breaking mechanism 100 further includes a fixing portion 102, the fixing portion 102 has a fixing surface 1021, the fixing surface 1021 is perpendicular to the axial direction of the breaking member 101, the breaking member 101 has a first end 1011 and a second end 1012 that are oppositely disposed, the first end 1011 of the breaking member is connected to the fixing surface 1021 of the fixing portion 102, and the breaking member 101 can be driven to move along the axial direction by pushing and pulling the fixing portion 102.

As shown in fig. 2, the fixing portion 102 may include a flat plate structure, and the fixing surface 1021 is a surface of the flat plate structure connected to one end of the scattering member 101. The flat plate structure may be plate-shaped, for example, may be a rectangular plate or a square plate, or may be other shapes that match with the end surface of the sleeve 103 of the breaking mechanism 100, and the flat plate structure of the fixing portion 102 is used for connecting the breaking member 101 on one hand, so that the breaking member 101 can be moved by the fixing portion 102, so that the breaking mechanism 100 is installed and replaced, on the other hand, in order to make the breaking mechanism 100 be disposed inside the casing 200, the fixing hole 210 needs to be formed above, so that the tightness of the roasting device is reduced, and in order to improve the tightness of the roasting device, the fixing portion 102 is also used for sealing the fixing hole 210, so as to improve the tightness of the roasting device.

The area of the fixing surface 1021 in the flat plate structure can be designed according to the size of the fixing holes 210 and the number and arrangement of the scattering members 101, and the area of the fixing surface 1021 needs to be adapted to the size of the fixing holes 210, so that the fixing surface 1021 can completely cover the fixing holes 210, thereby improving the tightness of the device. In addition, because the fixing surface 1021 interacts with one end of the scattering member 101, the scattering member 101 can be uniformly connected to the fixing surface 1021, so as to ensure the uniformity of the stress of the fixing surface 1021 and avoid the damage of the fixing surface 1021 or the scattering member 101.

The fixing portion 102 may further include a handle structure, where the handle structure of the fixing portion 102 is connected to a surface of the flat plate structure opposite to the fixing surface 1021, that is, the handle structure is located outside the housing 200, and the handle structure may be used for pushing and pulling the fixing, that is, the handle structure is operated by an operator, so as to facilitate the operator to install and replace the scattering mechanism 100. The handle structure can be rectangular ring-shaped, semicircular ring-shaped or nail-shaped, and the like, the structure of the handle structure is not particularly limited, and the handle structure can provide a gripping point for an operator. Preferably, since the moving direction of the scattering member 101 is along the axial direction thereof, in order to facilitate the minimum application of force to the scattering member 101 by the operator, the stress direction of the handle structure may be set along the axial direction of the scattering member 101.

The handle structure can be made of the same material as the flat plate structure or different materials, but for the sake of simple process, the handle structure and the flat plate structure are usually made of the same material. The handle structure and the flat plate structure may be integrally formed into the fixing portion 102, or the handle structure and the flat plate structure may be separately manufactured and formed and then connected by one or more connection modes selected from welding, screwing or riveting. The material composition, type and connection form of the handle structure and the plate structure are not particularly limited.

In the embodiment provided by the present disclosure, the breaking mechanism 100 further includes two sleeves 103, the two sleeves 103 are respectively sleeved on the first end 1011 of the breaking member and the second end 1012 of the breaking member, and the outer wall of the sleeve 103 is attached to the inner wall of the fixing hole 210 provided on the housing 200. Since the number of the scattering members 101 is plural, the axes of the plurality of scattering members 101 may be parallel to each other, so that the scattering members 101 cannot be directly coupled to the fixing holes 210, and thus, in order to reinforce the coupling between the scattering members 101 and the housing 200, the sleeve 103 is added between the scattering members 101 and the housing 200. Wherein, the outer diameter of the sleeve 103 is equal to the inner diameter of the fixing hole 210 on the shell 200, so that the sleeve 103 can further increase the tightness of the device; the inner diameter of the sleeve 103 is adapted to the overall outer diameter dimension of the plurality of scattering members 101 such that the sleeve 103 may provide support for the scattering members 101.

The sleeve 103 is connected to the fixing portion 102 of the breaking mechanism 100 via a flange 104. Since the fixing portion 102 needs to seal the fixing hole 210 of the case 200, but the fixing portion 102 cannot be directly connected to the case, an end surface adapted to the fixing surface 1021 of the fixing portion 102 may be provided at an end portion of the sleeve 103, and the fixing portion 102 and the sleeve 103 may be connected by the flange 104 after the end surface is bonded to the fixing surface 1021, so as to achieve the function of sealing the fixing hole 210.

In the specific embodiment provided in the disclosure, as shown in fig. 2, at the second end 1012 of the scattering member, the sleeve 103 and the fixing portion 102 may be fixedly connected through two flanges 104 along the direction perpendicular to the axis of the scattering member 101, so as to further increase the tightness of the device, and when the scattering mechanism 100 is installed and replaced, the scattering member 101 and the sleeve 103 can be directly moved out of the housing 200 through the fixing portion 102 in an integral manner, or the scattering member 101 and the sleeve 103 can be directly installed into the housing 200 through the fixing portion 102 in an integral manner in which the scattering member 101 and the sleeve 103 are communicated with the fixing portion 102, thereby saving procedures and assembly time. At the first end 1011 of the scattering member, in order to facilitate the installation and replacement of the scattering member 101, the second end 1012 of the scattering member is not fixed to the fixing portion 102, a certain distance is provided between the end of the second end 1012 of the scattering member and the fixing surface 1021, and at the second end 1012 of the scattering member, the fixing portion 102 and the sleeve 103 are connected by the flange 104, so that when the internal working state and the structural state of the scattering mechanism 100 need to be monitored, the fixing portion 102 of the second end 1012 of the scattering member can be separated from the sleeve 103 to observe the working condition of the scattering mechanism 100. Of course, in the present disclosure, variations or combinations of the above embodiments are contemplated as falling within the scope of the present disclosure, and are not explicitly recited herein.

Since the sleeve 103 and the fixing portion 102 are connected to each other by the flange 104, a space needs to be provided between the fixing surface 1021 of the case 200 and the fixing portion 102, so that the operator can connect the sleeve 103 and the fixing portion 102 to each other by the flange 104.

In the embodiment provided in the present disclosure, the breaking mechanism 100 further includes a plurality of reinforcing portions 105, where the plurality of reinforcing portions 105 are respectively disposed at the first end 1011 of the breaking member, the second end 1012 of the breaking member, and the middle portion of the breaking member 101, and the reinforcing portions 105 are used for supporting the breaking member 101. Because the scattering piece 101 has an aspect ratio, in order to increase the stress of the scattering piece 101 in the length direction, the scattering piece 101 is prevented from being deformed due to the action of gravity, and therefore, the reinforcing parts 105 are additionally arranged at the two ends and the middle part of the scattering piece 101, so that the stress of the scattering piece 101 is further improved. In addition, since the reinforcing portion 105 is provided in the device, the joint surface strength of the device is increased to increase the strength of the whole device. The reinforcing portion 105 may be a reinforcing rib or other reinforcing structure having the same function, and the present disclosure is not limited thereto.

In the embodiment provided by the present disclosure, the roasting device further includes an inspection portion including an inspection door 300 provided on the housing 200, the inspection portion being for inspecting the scattering mechanism 100. The access door 300 is an access door in the form of a stop log floating access door, a stop log access door, etc., and the size and model of the access door 300 can be selected according to the actual structural requirements of the roasting device, and the disclosure is not particularly limited. In the present disclosure, the service part may further include a plurality of lining construction holes 500 provided on the housing 200, and the lining construction holes 500 may be provided in the vicinity of the service door 300, since the roasting device is large in size and high in the position where it is provided in the actual structure, when an operator needs to service the scattering mechanism 100 through the service door 300, scaffolds may be installed on the lining construction holes 500 to provide the operator with a service site.

The shell 200 of the roasting device provided by the disclosure further comprises a discharge port 202, and after the material is scattered to form a uniform material curtain by the scattering mechanism 100 and subjected to heat exchange in the heat exchange channel, the granular material can be discharged to a hydraulic feeding chamber through the discharge port 202 for subsequent treatment. The discharge opening 202 may be disposed directly below the breaking mechanism 100 so that granular material may smoothly enter the discharge opening 202. In addition, the discharge port 202 is provided with a weight air lock valve, and granular materials enter the hydraulic feeding chamber through the discharge port 202 and the weight air lock valve, wherein the discharge port 202 is provided with the weight air lock valve so that a material circulation channel is airtight, and therefore, not only can sealing materials be ensured, but also the materials can be evenly dredged.

In the embodiment provided by the disclosure, the roasting device further comprises a heat exchange pipeline 400, and the material exchanges heat with a heat exchange medium in the heat exchange pipeline 400 to increase the temperature of the material. The material needs to be preheated before entering the roasting kiln for roasting, so that the temperature of the material is increased, and the overburning of the material in the roasting kiln is reduced. Accordingly, the roasting device provided in the present disclosure further includes a heat exchange pipe 400, and the heat exchange pipe 400 partially coincides with the flow path of the material. The heat exchange pipeline 400 is provided with an air inlet 401 and an air outlet 402, and a heat exchange medium can enter the heat exchange pipeline 400 through the air inlet 401, so that the scattered material exchanges heat with the heat exchange medium to raise the temperature of the material. Wherein, the material can reach the purpose of heating up through the heat radiation of the heat exchange medium and/or the direct contact with the heat exchange medium, and the material after heat exchange can enter the subsequent treatment device, and the subsequent treatment device can be a secondary heat exchange pipeline 400 or other structures commonly used in roasting devices, which are not specifically described herein. In the present disclosure, the heat exchanging effect of the curtain of material in the heat exchanging pipe 400 is better because the material is scattered by the scattering mechanism 100 to form a uniform curtain of material.

The temperature of the heat exchange medium is required to be higher than that of the material curtain so as to enable the heat exchange medium and the material curtain to exchange heat. The heat exchange medium can be high-temperature flue gas, high-temperature air and other gases, the specific type of the heat exchange medium can be selected according to the actual design requirement of the roasting system, and the disclosure is not limited in particular.

In the embodiment provided by the disclosure, after the material enters the feed inlet 201 from the air locking discharger, the material enters the scattering mechanism 100, and because the scattering mechanism 100 and the feed inlet 201 have a height difference, the material generates impact force on the scattering piece 101 of the scattering mechanism 100 due to the action of gravity, the scattering piece 101 scatters the material to form a uniform material curtain, and the material enters the heat exchange pipeline 400; the heat exchange medium enters the heat exchange pipeline 400 from the air inlet 401, the material exchanges heat with the heat exchange medium to raise the temperature of the material, and the heat exchanged material enters a lower-level treatment device (such as a roasting kiln) for subsequent treatment.

For example, the temperature of the material after being scattered by the scattering device is 20 ℃, the temperature of the heat exchange medium at the air inlet 401 is 450 ℃, after the heat exchange medium and the material exchange heat, the temperature of the material can be raised to 100 ℃, and the temperature of the heat exchange medium after heat exchange is lowered to 350 ℃. The foregoing embodiments provided by the present disclosure are only exemplary, and only illustrate that the heat exchange relationship between the material and the heat exchange medium is provided, and specific temperature values thereof may be set according to actual requirements of the roasting device, which is not specifically limited in the present disclosure. In practical application, the material has an overburning temperature in the roasting kiln, namely the heating temperature of the heat exchange medium to the material needs to be lower than the overburning temperature of the material, so that the overburning phenomenon of the material is reduced, namely the temperature of the heated material needs to be lower than 1250 ℃.

The utility model provides a roasting device for lithium ore, including casing 200 and the mechanism 100 that breaks up of setting in casing 200 inside, wherein, break up mechanism 100 setting in casing 200 and be close to the position department of feed inlet 201, the material has the difference in height with break up between the mechanism 100, the material breaks up on breaking up mechanism 100 through the action of gravity, in order to form even material curtain in casing 200, the static process of breaking up to the material is realized through a plurality of pieces 101 of breaking up in the device, and make the break up of material more even, the simple structure of this kind of mechanism 100 that breaks up, no transmission obstacle, the cost of manufacture is low, installation and change process are simple and easy, in addition, because the material is broken up on breaking up piece 101 through self action of gravity, need not any energy consumption to the break up of material.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any adaptations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

Claims (9)

1. A roasting apparatus for lithium ores, comprising:

the shell comprises a feed inlet through which materials enter the interior of the shell;

the scattering mechanism is arranged in the shell and close to the position of the feed inlet, a height difference is formed between the material and the scattering mechanism, and the material is scattered on the scattering mechanism under the action of gravity so as to form a uniform material curtain in the shell;

the scattering mechanism comprises a plurality of scattering pieces, the scattering pieces are distributed in an array mode, each scattering piece is of a columnar structure, fixing holes are symmetrically formed in the shell, and the scattering pieces are fixed on the shell through the fixing holes.

2. The roasting apparatus for lithium ores according to claim 1, wherein the number of the scattering members is four, and the cross sections of the four scattering members in the vertical direction form a diamond-shaped outer contour, and the cross section of each scattering member is located at one corner of the diamond shape.

3. The roasting apparatus for lithium ores of claim 1, wherein the distance between the center of the scattering mechanism in the vertical direction and the feed inlet is 1000mm to 1500mm.

4. The roasting apparatus for lithium ores of claim 1, wherein the breaking-up mechanism further comprises a fixing portion having a fixing surface perpendicular to the axial direction of the breaking-up member, the breaking-up member having opposite first and second ends, the first end being connected to the fixing surface, the breaking-up member being moved in the axial direction by pushing and pulling the fixing portion.

5. The roasting device for lithium ores of claim 4, wherein the scattering mechanism further comprises two sleeves, the two sleeves are respectively sleeved at the first end and the second end, and the outer wall of the sleeve is attached to the inner wall of the fixing hole.

6. The roasting apparatus for lithium ores of claim 5, wherein the fixing portion is connected to the sleeve by a flange.

7. The roasting apparatus for lithium ores of claim 5, wherein the scattering mechanism further comprises a plurality of reinforcing portions provided at the first end of the scattering member, the second end of the scattering member and the middle portion of the scattering member, respectively, the reinforcing portions being for supporting the scattering member and for increasing the strength of the apparatus.

8. The roasting apparatus for lithium ores of claim 1, further comprising an access portion comprising an access door provided on the housing, the access portion for servicing the breaking mechanism.

9. The roasting apparatus for lithium ores of claim 1, further comprising a heat exchange conduit, the material being subjected to heat exchange with a heat exchange medium within the heat exchange conduit to raise the temperature of the material.