Slurry type feeding atomization device and roasting equipment

Abstract

The utility model discloses a slurry type feeding atomization device and roasting equipment, the slurry type feeding atomization device is applied to the roasting equipment, the roasting equipment comprises a roasting furnace, and the slurry type feeding atomization device comprises a mixing straight pipe, a compressed air pipe, an atomization pipe and a feeding pipe. The mixing straight pipe is provided with a first end and a second end, the second end and the first end are arranged at an interval in the axial direction of the mixing straight pipe, the mixing straight pipe is installed on the roasting furnace, an angle is formed between the mixing straight pipe and the side wall of the roasting furnace, and the first end is used for stretching into the roasting furnace and facing the bottom of the roasting furnace; the compressed air pipe is communicated with the mixing straight pipe through the second end; the atomizing pipe is communicated with the mixing straight pipe through the first end; the feeding pipe is communicated with the mixing straight pipe, the discharging end of the feeding pipe is arranged between the first end and the second end, and the compressed air pipe is located on the side, close to the second end, of the central axis of the feeding pipe in the axial direction of the mixing straight pipe. According to the slurry type feeding atomization device, the probability of slurry blockage can be reduced.

Description

Technical Field

[0001] The present application relates to the technical field of metallurgical equipment, and in particular to a slurry-type feeding atomization device and roasting equipment. Background Art

[0002] Roasting equipment typically consists of a roaster and a feeding device. Slurry feeding devices are widely used in gold smelting, copper-cobalt sulfide ore roasting, and other applications due to their environmentally friendly and easy-to-use operating environment. The atomizer is a key component of slurry feeding devices. In traditional roasting equipment, the complex structure of the atomizer can easily lead to slurry blockage within the atomizer, resulting in feed interruptions and impacting the normal operation of the roaster. Utility Model Content

[0003] In view of this, the purpose of this application is to overcome the deficiencies in the prior art and to provide a slurry feeding atomization device that can reduce the probability of slurry blockage.

[0004] The present application also provides a roasting device.

[0005] To achieve the above objectives, the technical solutions adopted in this application are as follows:

[0006] According to the slurry feeding atomization device of the first aspect embodiment of the present application, it is applied to roasting equipment, which includes a roasting furnace, and the slurry feeding atomization device includes: a mixing straight pipe, the mixing straight pipe having a first end and a second end spaced apart from the first end along the axial direction of the mixing straight pipe, the mixing straight pipe is installed on the roasting furnace and is arranged at an angle to the side wall of the roasting furnace, and the first end is used to extend into the roasting furnace and be arranged toward the bottom of the roasting furnace; a compressed air pipe, the compressed air pipe is connected to the mixing straight pipe through the second end; an atomization pipe, the atomization pipe is connected to the mixing straight pipe through the first end; a feeding pipe, the feeding pipe is connected to the mixing straight pipe, and the discharge end of the feeding pipe is arranged between the first end and the second end, and the compressed air pipe is located on the side of the central axis of the feeding pipe close to the second end along the axial direction of the mixing straight pipe.

[0007] The slurry feeding atomization device of the present application has the following advantages:

[0008] In the slurry feeding atomization device of the present application, slurry can be input into the mixing straight pipe through the feeding pipe, and compressed air can be introduced into the mixing straight pipe through the compressed air pipe, so that the slurry in the mixing straight pipe is mixed with the compressed air, thereby making the slurry atomized, so that the atomized slurry can be sprayed into the roasting furnace through the atomization pipe. In this process, since the mixing straight pipe is straight and the mixing straight pipe is set at an angle to the side wall of the roasting furnace, and the first end of the mixing straight pipe is used to extend into the roasting furnace and is set toward the bottom of the roasting furnace, the slurry in the mixing straight pipe can be accelerated to flow out of the atomization pipe under the action of gravity. , thereby reducing the possibility of slurry accumulation in the mixing straight pipe, so as to reduce the probability of slurry blockage in the mixing straight pipe. Furthermore, since the compressed air pipe is located on the side of the central axis of the feeding pipe along the axial direction of the mixing straight pipe close to the second end, the slurry entering the mixing straight pipe can be mixed with the compressed air, so that the slurry can be atomized, thereby improving the fluidity of the slurry. At the same time, the slurry in the mixing straight pipe can be purged by compressed air, thereby further reducing the possibility of slurry accumulation in the mixing straight pipe, so as to reduce the probability of slurry blockage in the mixing straight pipe.

[0009] According to the slurry feeding atomization device of the first embodiment of the present application, the feeding pipe is arranged at an angle to the mixing straight pipe, and the feeding end of the feeding pipe is arranged closer to the second end along the axial direction of the mixing straight pipe than the discharging end of the feeding pipe.

[0010] According to the slurry feeding atomization device of the first embodiment of the present application, the angle between the feeding pipe and the mixing straight pipe is α, which satisfies: 30°≤α≤45°.

[0011] According to the slurry feeding atomization device of the first aspect embodiment of the present application, the slurry feeding atomization device also includes a first connecting member and a second connecting member, the first connecting member is connected to the second end, the second connecting member is connected to the compressed air pipe, and the first connecting member is connected to the second connecting member.

[0012] According to the slurry feeding atomization device of the first embodiment of the present application, the first connecting member and the second connecting member are detachably connected.

[0013] According to the slurry feeding atomization device of the first embodiment of the present application, the compressed air pipe is passed through the second end into the mixing straight pipe, and the air outlet end of the compressed air pipe is located on the central axis of the feeding pipe.

[0014] According to the slurry feeding atomization device of the first embodiment of the present application, the compressed air pipe and the mixing straight pipe are coaxially arranged.

[0015] According to the slurry feeding atomization device of the first embodiment of the present application, the atomization pipe and the mixing straight pipe are coaxially arranged.

[0016] According to the slurry feeding atomization device of the first aspect embodiment of the present application, the diameter of the feed end of the atomization tube is the same as the diameter of the first end, both of which are D1, and the diameter of the discharge end of the atomization tube is D2, satisfying: 2.5≤D2 / D1≤3.

[0017] According to the second embodiment of the present application, the roasting equipment includes: a roasting furnace; and the slurry feeding atomization device as described above, wherein the slurry feeding atomization device is used to provide atomized slurry into the roasting furnace.

[0018] The roasting equipment of this application has the following advantages:

[0019] In the roasting equipment of the present application, since the slurry-type feeding atomizing device of the present application can reduce the occurrence of slurry blockage, the roasting equipment of the present application can have a better roasting effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 Shows a schematic structural diagram of the roasting equipment in this application;

[0022] Figure 2 The schematic diagram of the structure of the slurry feeding atomization device in this application is shown;

[0023] Figure 3 It shows the structural schematic diagram of the mixing straight pipe and the feeding pipe in this application;

[0024] Figure 4 It shows a schematic diagram of the structure of the mixing straight pipe and the compressed air pipe in this application;

[0025] Figure 5 The schematic diagram shows the structure of the mixing straight tube and the atomizing tube in this application.

[0026] Description of main component symbols:

[0027] 10-slurry feeding atomization device;

[0028] 100-mixing straight pipe; 110-first end; 120-second end;

[0029] 200-compressed air pipe;

[0030] 300-atomizer tube;

[0031] 400-feeding pipe;

[0032] 500-first connecting member;

[0033] 600- second connecting piece;

[0034] 700- third connecting piece;

[0035] 20- roasting furnace. DETAILED DESCRIPTION

[0036] The following describes in detail embodiments of the present application. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and are not to be construed as limiting the present application.

[0037] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0038] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0039] In this application, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components or interactions between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on specific circumstances.

[0040] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0041] Reference Figure 1 as well as Figure 2 As shown, the slurry feeding atomization device 10 involved in the embodiment of the present application is applied to a roasting equipment, which includes a roasting furnace 20 . The slurry feeding atomization device 10 includes: a mixing straight pipe 100 , a compressed air pipe 200 , an atomization pipe 300 and a feeding pipe 400 .

[0042] Specifically, the mixing straight pipe 100 has a first end 110 and a second end 120 spaced apart from the first end 110 along the axial direction of the mixing straight pipe 100. The mixing straight pipe 100 is installed on the roasting furnace 20 and is set at an angle to the side wall of the roasting furnace 20, and the first end 110 is used to extend into the roasting furnace 20 and be set toward the bottom of the roasting furnace 20; the compressed air pipe 200 is connected to the mixing straight pipe 100 through the second end 120; the atomization pipe 300 is connected to the mixing straight pipe 100 through the first end 110; the feeding pipe 400 is connected to the mixing straight pipe 100, and the discharge end of the feeding pipe 400 is set between the first end 110 and the second end 120, and the compressed air pipe 200 is located on the side of the central axis of the feeding pipe 400 close to the second end 120 along the axial direction of the mixing straight pipe 100.

[0043] In the slurry feeding atomization device 10 of the present application, slurry can be input into the mixing straight pipe 100 through the feeding pipe 400, and compressed air can be introduced into the mixing straight pipe 100 through the compressed air pipe 200, so that the slurry in the mixing straight pipe 100 is mixed with the compressed air, thereby making the slurry atomized, so that the atomized slurry can be sprayed into the roasting furnace 20 through the atomizing pipe 300. In this process, since the mixing straight pipe 100 is straight and the mixing straight pipe 100 is set at an angle to the side wall of the roasting furnace 20, and the first end 110 of the mixing straight pipe 100 is used to extend into the roasting furnace 20 and is set toward the bottom of the roasting furnace 20, the slurry in the mixing straight pipe 100 can be accelerated from the atomizing pipe 300 under the action of gravity. The compressed air pipe 200 is located on the side of the central axis of the feeding pipe 400 close to the second end 120 along the axial direction of the mixing straight pipe 100. Therefore, the slurry entering the mixing straight pipe 100 can be mixed with the compressed air, so that the slurry can be atomized, thereby improving the fluidity of the slurry. At the same time, the slurry in the mixing straight pipe 100 can be purged by compressed air, thereby further reducing the possibility of slurry accumulation in the mixing straight pipe 100 and reducing the probability of slurry blockage in the mixing straight pipe 100.

[0044] Specifically, in this embodiment, the slurry is mineral slurry.

[0045] Reference Figure 2 as well as Figure 3 As shown, the feeding pipe 400 is arranged at an angle to the mixing straight pipe 100 , and the feeding end of the feeding pipe 400 is arranged closer to the second end 120 along the axial direction of the mixing straight pipe 100 than the discharging end of the feeding pipe 400 .

[0046] In this embodiment, since the feeding pipe 400 is set at an angle to the mixing straight pipe 100, and the feeding end of the feeding pipe 400 is set closer to the second end 120 along the axial direction of the mixing straight pipe 100 than the discharging end of the feeding pipe 400, when the slurry enters the mixing straight pipe 100 through the discharging end of the feeding end, the angle between the flow direction of the slurry and the pipe wall of the mixing straight pipe 100 can be reduced, thereby reducing the resistance of the pipe wall of the mixing straight pipe 100 to the flow of the slurry, thereby improving the flow smoothness of the slurry entering the mixing straight pipe 100 through the feeding pipe 400, further reducing the possibility of slurry accumulation in the mixing straight pipe 100, and reducing the probability of slurry blockage in the mixing straight pipe 100. At the same time, when the feeding pipe 400 is set at an angle to the mixing straight pipe 100, the feeding end of the feeding pipe 400 is set closer to the second end 120 along the axial direction of the mixing straight pipe 100. When the angle is set, compressed air is blown in along the axial direction of the mixing straight tube 100, and the slurry is tilted into the mixing straight tube 100 along a direction that is angled with the axial direction of the mixing straight tube 100. At this time, the slurry enters the mixing straight tube 100 in the form of arc sheets, which can be beneficial for the compressed air blown in along the axial direction of the mixing straight tube 100 to atomize the slurry to improve the atomization effect. At the same time, the requirement for compressed air pressure can be reduced. When the pressure of the compressed air is between 0.1Mpa and 0.2Mpa, a good atomization effect can be achieved. Furthermore, the compressed air with lower pressure and the atomized slurry can reduce the impact on the inner wall of the mixing straight tube 100 and the inner wall of the atomizing tube 300, thereby extending the service life of the mixing straight tube 100 and the atomizing tube 300.

[0047] Specifically, in this embodiment, the mixing straight pipe 100 and the feeding pipe 400 are connected by welding to improve the air tightness between the mixing straight pipe 100 and the feeding pipe 400, to prevent compressed air and slurry from leaking through the connection between the mixing straight pipe 100 and the feeding pipe 400, thereby improving the atomization effect of compressed air on the slurry.

[0048] Reference Figure 3 As shown, the angle between the feeding pipe 400 and the mixing straight pipe 100 is α, which satisfies: 30°≤α≤45°.

[0049] Specifically, in this embodiment, the angle α between the feeding pipe 400 and the mixing straight pipe 100 can be 30°, 35°, 40°, 45°, etc.

[0050] In this embodiment, if the angle α between the feeding pipe 400 and the mixing straight pipe 100 satisfies: α<30°, the angle between the feeding pipe 400 and the mixing straight pipe 100 will be too small, resulting in a weakening of the fluidity of the slurry in the feeding pipe 400, further resulting in a decrease in the feeding flow rate and feeding speed of the slurry feeding atomizing device 10, resulting in a decrease in roasting efficiency. If the angle α between the feeding pipe 400 and the mixing straight pipe 100 satisfies: α>45°, the angle between the feeding pipe 400 and the mixing straight pipe 100 will be too large, and when the slurry enters the mixing straight pipe 10 through the feeding pipe 400, the slurry will be discharged. When the mixing straight pipe 100 is in the mixing straight pipe 100, the impact force of the pipe wall of the mixing straight pipe 100 on the slurry will be increased, thereby causing the slurry to accumulate at the discharge end of the feeding end, further increasing the difficulty of mixing the mixed air and the slurry, increasing the difficulty of atomizing the slurry in the mixing straight pipe 100, and increasing the possibility of slurry accumulation in the mixing straight pipe 100. When the angle α between the feeding pipe 400 and the mixing straight pipe 100 satisfies: 30°≤α≤45°, it can not only make the slurry in the feeding pipe 400 have better fluidity, but also improve the atomization effect of the slurry in the mixing straight pipe 100.

[0051] Reference Figure 3 as well as Figure 4 As shown, the slurry feeding atomizing device 10 further includes a first connecting member 500 and a second connecting member 600 . The first connecting member 500 is connected to the second end 120 , and the second connecting member 600 is connected to the compressed air pipe 200 . The first connecting member 500 is connected to the second connecting member 600 .

[0052] In this embodiment, since the first connecting member 500 is connected to the second end 120, the second connecting member 600 is connected to the compressed air pipe 200, and the first connecting member 500 is connected to the second connecting member 600, the connection between the mixing straight pipe 100 and the compressed air pipe 200 can be achieved through the connection between the first connecting member 500 and the second connecting member 600. When compressed air is passed into the compressed air pipe 200, the stability of the connection relationship between the mixing straight pipe 100 and the compressed air pipe 200 can be improved, so as to improve the stability of the slurry feeding atomization device 10 of this application in feeding into the roasting furnace 20.

[0053] Specifically, the first connecting member 500 and the second connecting member 600 are detachably connected.

[0054] In this embodiment, since the first connecting member 500 and the second connecting member 600 are detachably connected, the second connecting member 600 can be removed from the first connecting member 500, so that the compressed air pipe 200 can be removed from the mixing straight pipe 100. When a large piece of slurry blocks the atomizing pipe 300 or the mixing straight pipe 100, the blocked slurry in the mixing straight pipe 100 can be quickly cleaned by removing the compressed air pipe 200, so as to improve the convenience of unblocking the mixing straight pipe 100, thereby improving and reducing the difficulty of inspection and maintenance of the slurry feeding atomizing device 10 of the present application.

[0055] Specifically, in this embodiment, the first connecting member 500 and the second connecting member 600 together form a connecting flange, and the connection between the mixing straight pipe 100 and the compressed air pipe 200 is achieved through the connecting flange.

[0056] Reference Figure 2 As shown, the compressed air pipe 200 is inserted into the mixing straight pipe 100 via the second end 120 , and the air outlet end of the compressed air pipe 200 is located on the central axis of the feeding pipe 400 .

[0057] In this embodiment, since the air outlet end of the compressed air pipe 200 is located on the central axis of the feeding pipe 400, when the slurry enters the mixing straight pipe 100 through the feeding pipe 400, it can be immediately mixed with the compressed air and atomized. In this way, the possibility of slurry accumulation in the mixing straight pipe 100 can be further reduced, and the impact of the slurry on the inner wall of the mixing straight pipe 100 can be further reduced.

[0058] Reference Figure 4 As shown, the compressed air pipe 200 is coaxially arranged with the mixing straight pipe 100 .

[0059] In this embodiment, since the compressed air pipe 200 is coaxially arranged with the mixing straight pipe 100, the compressed air can enter the mixing straight pipe 100 along the axial direction of the mixing straight pipe 100, so that most of the compressed air is mixed with the slurry to improve the atomization effect of the slurry. At the same time, the possibility of the compressed air impacting the inner wall of the mixing straight pipe 100 can be reduced, thereby reducing the impact of the compressed air on the service life of the mixing straight pipe 100.

[0060] Reference Figure 5 As shown, the atomizing tube 300 and the mixing straight tube 100 are coaxially arranged.

[0061] In this embodiment, since the atomizing tube 300 is coaxially arranged with the mixing straight tube 100, the fluidity of the atomized slurry flowing through the atomizing tube 300 can be improved, the possibility of slurry accumulation in the atomizing tube 300 can be reduced, and the energy dissipation of the slurry can be reduced, so that the slurry can be sprayed into the roasting furnace 20 through the atomizing tube 300. When the slurry is sprayed into the roasting furnace 20 through the atomizing tube 300, the atomized slurry can be dispersed in a fan shape on the hearth of the boiling roasting furnace 20. The dispersed atomized slurry can burn rapidly when encountering high-temperature roasting sand or flue gas, thereby achieving a good roasting effect.

[0062] Specifically, in this embodiment, the atomizing tube 300 and the mixing straight tube 100 are connected by welding to improve the air tightness between the mixing straight tube 100 and the feeding tube 400, and avoid leakage of the atomized slurry through the connection between the mixing straight tube 100 and the atomizing tube 300, thereby reducing the energy dissipation of the slurry and improving the spraying effect of the slurry sprayed through the atomizing tube 300. At the same time, the atomizing tube 300 is the most easily worn component. When the atomizing tube 300 is worn, it is only necessary to cut the worn atomizing tube 300 from the mixing straight tube 100, and then weld the new atomizing tube 300 to the mixing straight tube 100, so as to reduce the difficulty of replacing the atomizing tube 300. At the same time, there is no need to replace the entire slurry feeding atomizing device 10, so as to achieve the purpose of saving time and materials.

[0063] Specifically, in this embodiment, the atomizing tube 300 is made of wear-resistant alloy, and the mixing straight tube 100 is made of stainless steel or 310S heat-resistant steel to increase the service life of the atomizing tube 300 and the mixing straight tube 100. At the same time, wear-resistant alloy, stainless steel and 310S heat-resistant steel are all common materials. Therefore, the manufacturing difficulty of the slurry feeding atomizing device 10 of the present application can be reduced, so that it is convenient to manufacture it with local materials at the working site.

[0064] Specifically, in this embodiment, an end of the atomizing pipe 300 away from the mixing straight pipe 100 is connected to an atomizing nozzle, so that the slurry is sprayed out through the atomizing nozzle.

[0065] Continue to refer to Figure 5 As shown, the diameter of the feed end of the atomizing tube 300 is the same as the diameter of the first end 110, both being D1, and the diameter of the discharge end of the atomizing tube 300 is D2, satisfying: 2.5≤D2 / D1≤3.

[0066] Specifically, in this embodiment, D2 / D1 can be 2.5, 2.6, 25 / 9, 2.7, 2.8, 2.9, 3, etc.

[0067] In this embodiment, when the atomized slurry is sprayed out through the atomizing tube 300, the atomizing tube 300 can further atomize the slurry so that the slurry can be dispersed in a fan shape on the hearth of the boiling roasting furnace 20 after being sprayed out through the atomizing tube 300. If D2 / D1>3, the diameter of the discharge end of the atomizing tube 300 will be too small. When the atomized slurry is sprayed out through the discharge end of the atomizing tube 300, the too small diameter will have an excessively large energy dissipation effect on the atomized slurry, so that the atomized slurry may be Accumulation forms in the atomizing tube 300. If D2 / D1 is less than 2.5, the diameter of the discharge pipe of the atomizing tube 300 will be too large. This will weaken the atomizing ability of the atomizing tube 300 on the atomized slurry, reduce the uniformity of the atomized slurry entering the roasting furnace 20, and affect the roasting effect. When 2.5≤D2 / D1≤3, it can reduce the possibility of accumulation of the atomized slurry in the atomizing tube 300 and improve the atomizing effect of the atomizing tube 300 on the atomized slurry.

[0068] Specifically, refer to Figure 3 as well as Figure 4 As shown, in this embodiment, the slurry feeding atomization device 10 also includes a third connecting member 700, which is connected to the mixing straight pipe 100 and connected to the side wall of the roasting furnace 20. The mixing straight pipe 100 is connected to the roasting furnace 20 through the third connecting member 700 to improve the stability of the connection relationship between the slurry feeding atomization device 10 and the roasting furnace 20.

[0069] Specifically, in this embodiment, the feed pipe of the feeding pipe 400 is flexibly connected to the feeding equipment through a hose, and the air inlet end of the compressed air pipe 200 is flexibly connected to the air supply equipment through a hose. The curvature and length of the hose can be adjusted arbitrarily, so that the slurry feeding atomization device 10 of the present application can be easily installed, disassembled or repaired.

[0070] Reference Figure 1 As shown, the roasting equipment involved in the embodiment of the present application includes: a roasting furnace 20 and a slurry feeding atomization device 10.

[0071] Specifically, the slurry feeding atomizing device 10 is used to provide atomized slurry into the roasting furnace 20 .

[0072] In the roasting equipment of the present application, since the slurry feeding atomizing device 10 of the present application can reduce the occurrence of slurry blockage, the roasting equipment of the present application can have a better roasting effect.

[0073] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0074] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A slurry feeding atomizing device, characterized in that: Applied to roasting equipment, the roasting equipment includes a roasting furnace, and the slurry feeding atomization device includes: a straight mixing tube, the straight mixing tube having a first end and a second end spaced apart from the first end along the axial direction of the straight mixing tube, the straight mixing tube being mounted on the roasting furnace and arranged at an angle to the side wall of the roasting furnace, and the first end being configured to extend into the roasting furnace and be arranged toward the bottom of the roasting furnace; a compressed air pipe, the compressed air pipe being connected to the mixing straight pipe through the second end; an atomizing tube, the atomizing tube being connected to the mixing straight tube through the first end; A feeding pipe, the feeding pipe is connected to the mixing straight pipe, and the discharge end of the feeding pipe is arranged between the first end and the second end, and the compressed air pipe is located on the side of the central axis of the feeding pipe along the axial direction of the mixing straight pipe close to the second end.

2. The slurry feeding atomizing device according to claim 1, characterized in that: The feeding pipe is arranged at an angle to the mixing straight pipe, and the feeding end of the feeding pipe is arranged closer to the second end along the axial direction of the mixing straight pipe than the discharging end of the feeding pipe.

3. The slurry feeding atomizing device according to claim 2, characterized in that: The angle between the feeding pipe and the mixing straight pipe is α, which satisfies: 30°≤α≤45°.

4. The slurry feeding atomizing device according to claim 1, characterized in that: The slurry-type feeding atomizing device further includes a first connecting member and a second connecting member, wherein the first connecting member is connected to the second end, the second connecting member is connected to the compressed air pipe, and the first connecting member is connected to the second connecting member.

5. The slurry feeding atomizing device according to claim 4, characterized in that: The first connecting member and the second connecting member are detachably connected.

6. The slurry feeding atomizing device according to claim 1, characterized in that: The compressed air pipe is passed through the mixing straight pipe via the second end, and the air outlet end of the compressed air pipe is located on the central axis of the feeding pipe.

7. The slurry feeding atomizing device according to claim 1, characterized in that: The compressed air pipe and the mixing straight pipe are coaxially arranged.

8. The slurry feeding atomizing device according to claim 1, characterized in that: The atomizing tube and the mixing straight tube are coaxially arranged.

9. The slurry feeding atomizing device according to claim 1, characterized in that: The diameter of the feed end of the atomizing tube is the same as the diameter of the first end, both being D1. The diameter of the discharge end of the atomizing tube is D2, satisfying: 2.5≤D2 / D1≤3.

10. A roasting device, characterized in that: include: roaster; as well as The slurry feeding atomizing device according to any one of claims 1 to 9, wherein the slurry feeding atomizing device is used to provide atomized slurry into the roasting furnace.

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