Indium-containing smoke dust pretreatment device

Abstract

The utility model relates to the technical field of indium-containing smoke dust pretreatment, in particular to an indium-containing smoke dust pretreatment device which comprises a feeding cylinder, a filter plate is arranged in the feeding cylinder, a discharging port is formed in the face, close to the filter plate, of the feeding cylinder, and a limiting mechanism comprises a sliding groove and a limiting plate. The size of an opening of the feeding cylinder is adjusted according to working requirements through cooperation between a limiting plate and a limiting screw rod, materials firstly fall on the inclined filter plate, qualified materials fall through screen holes, enter a conveying channel below the feeding cylinder and finally enter the electromagnetic rotary kiln, and particles with overlarge sizes are intercepted by the filter plate and continue to slide towards the lower position along the inclined plate face. Therefore, it is guaranteed that the particle sizes of materials in the rotary kiln tend to be consistent, heat and mass can be evenly transferred in the heating process, chemical reaction is synchronously carried out, the problems that the materials are heated unevenly and the reaction degrees are different are solved, the extraction rate of the indium element is guaranteed, and the consistency of the final product quality and the product quality are guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of indium-containing fume pretreatment technology, and in particular to an indium-containing fume pretreatment device. Background Technology

[0002] An indium-containing fume pretreatment unit is a device used to pretreat indium-containing fume, aiming to improve the indium recovery efficiency and product quality in subsequent processes, while reducing environmental impact. A rotary kiln is one such device, and it has the following structure:

[0003] 1. Transmission device: mainly composed of motor, reducer, coupling, gears, etc.

[0004] 2. Support device: The support rollers support the weight of the kiln body, allowing the kiln body to rotate smoothly on the support rollers; the stop rollers are used to limit the axial movement of the kiln body, ensuring that the kiln body operates within the specified range;

[0005] 3. Feed cylinder: Its function is to feed the material to be processed into the kiln body;

[0006] 4. Kiln body: The interior is lined with refractory material to withstand high temperatures and material abrasion, while reducing heat loss.

[0007] During the rotary kiln process, large particles are difficult to react synchronously with other materials, resulting in uneven heating and different reaction degrees, which in turn affects the extraction rate of indium in the final product and the consistency of product quality. Utility Model Content

[0008] To address the shortcomings of existing technologies, this utility model provides an indium-containing fume pretreatment device, which solves the technical problem that large particles are difficult to react synchronously with other materials during rotary kiln processing, resulting in uneven heating and different reaction degrees, which in turn affects the extraction rate of indium and the consistency of product quality in the final product.

[0009] To achieve the above objectives, this utility model provides the following technical solution:

[0010] A pretreatment device for indium-containing fume dust includes a feed cylinder with a filter plate for material screening inside. A discharge port is located on the side of the feed cylinder near the filter plate. A limiting mechanism for guiding material in is also located inside the feed cylinder. The limiting mechanism includes a chute and a limiting plate. The chute is located inside the feed cylinder and communicates with the outside of the feed cylinder. The limiting plate is slidably connected inside the chute. A threaded hole is located on the upper surface of the feed cylinder, communicating with the inside of the chute. A limiting screw for limiting the position of the limiting plate is threaded into the threaded hole. Two springs are located at both ends of the feed cylinder corresponding to the filter plate, below the filter plate.

[0011] Preferably, a collection bag is fixedly installed on the side of the feed cylinder corresponding to the discharge port for easy material collection.

[0012] Preferably, a base plate is fixedly installed at both ends inside the feed cylinder, and two fixed shafts are fixedly installed on the upper surface of each base plate. A spring is movably sleeved on the outside of the fixed shaft. Through holes are opened at both ends of the filter plate, and the filter plate is slidably connected to the outside of the fixed shaft through the through holes.

[0013] Preferably, the feed cylinder has an insertion hole at the end away from the discharge port, and an insertion plate for fixing the position of the filter plate is slidably connected inside the insertion hole. A fixing screw is fixedly installed on the side of the feed cylinder corresponding to the insertion plate, and a nut is threadedly connected to the outside of the fixing screw. The insertion plate is slidably connected to the outside of the fixing screw.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. By utilizing the cooperation between the limiting plate and the limiting screw, the size of the feed cylinder opening is adjusted according to the working requirements. When the material enters the feed cylinder, it first falls onto the inclined filter plate and slides along the plate surface under the action of gravity. At the same time, it is subjected to its own falling impact force. Qualified material falls through the screen holes and enters the conveying channel below the feed cylinder, and finally enters the electromagnetic rotary kiln. Particles that are too large are intercepted by the filter plate and continue to slide down the inclined plate surface and flow out from the discharge port. This ensures that the particle size of the material in the rotary kiln tends to be uniform, and that heat and mass transfer can be uniform during the heating process, and chemical reactions can occur simultaneously. This improves the problem of uneven heating and different reaction degrees of the material, thereby ensuring the extraction rate of indium and ensuring the consistency and quality of the final product.

[0016] Second, oversized particles are trapped by the filter plate and continue to slide down the inclined plate surface, falling into the collection bag from the discharge port. The end of the collection bag away from the discharge port is open, which facilitates the collection of large particles to the ground for collection, avoiding dust caused by the scattering of large particles. At the same time, it is convenient to uniformly process large particles, such as returning them to the crushing process for further processing, thus improving material processing efficiency. Attached Figure Description

[0017] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This utility model Figure 1 Structural diagram of the central feed cylinder;

[0020] Figure 3 This utility model Figure 2 Exploded view of the feed cylinder;

[0021] Figure 4 This utility model Figure 3 Structural diagram of the middle filter plate;

[0022] Figure 5 This utility model Figure 4 Enlarged structural diagram at point A in the middle.

[0023] Legend: 1. Feed cylinder; 2. Filter plate; 3. Discharge port; 4. Slide groove; 5. Limiting plate; 6. Threaded hole; 7. Limiting screw; 8. Spring; 9. Storage bag; 10. Base plate; 11. Fixed shaft; 12. Through hole; 13. Insertion hole; 14. Insert plate; 15. Fixed screw; 16. Nut. Detailed Implementation

[0024] This application provides an indium-containing fume pretreatment device, which effectively solves the technical problem that in the rotary kiln process, large particles of material are difficult to react synchronously with other materials, resulting in uneven heating and different reaction degrees, which in turn affects the extraction rate of indium and the consistency of product quality in the final product.

[0025] Example

[0026] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the technical solution in this application embodiment effectively solves the technical problem that large particles are difficult to react synchronously with other materials during rotary kiln processing, resulting in uneven heating and different reaction degrees, which in turn affects the extraction rate of indium and the consistency of product quality in the final product. The overall idea is as follows:

[0027] To address the problems existing in the prior art, this utility model provides an indium-containing fume pretreatment device, including a feeding cylinder 1. A filter plate 2 for material screening is installed inside the feeding cylinder 1, and the filter plate 2 is installed at an angle inside the feeding cylinder 1. An outlet 3 is provided on the side of the feeding cylinder 1 near the filter plate 2. A limiting mechanism for guiding material in is provided inside the feeding cylinder 1. The limiting mechanism includes a chute 4 and a limiting plate 5. The chute 4 is located inside the feeding cylinder 1 and communicates with the outside of the feeding cylinder 1. The limiting plate 5 is slidably connected inside the chute 4. A threaded hole 6 is provided on the upper surface of the feeding cylinder 1, communicating with the inside of the chute 4. A limiting screw 7 for limiting the position of the limiting plate 5 is threadedly connected inside the threaded hole 6.

[0028] Two springs 8 are provided at both ends of the feed cylinder 1 corresponding to the filter plate 2. The springs 8 are located below the filter plate 2. The two ends of the feed cylinder 1 are fixedly installed with base plates 10. Two fixed shafts 11 are fixedly installed on the upper surface of each base plate 10. The springs 8 are movably sleeved on the outside of the fixed shafts 11. The two ends of the filter plate 2 are provided with through holes 12. The filter plate 2 is slidably connected to the outside of the fixed shafts 11 through the through holes 12.

[0029] A storage bag 9 is fixedly installed on the side of the feed cylinder 1 corresponding to the discharge port 3.

[0030] The feed cylinder 1 has an insertion hole 13 at the end away from the discharge port 3. An insertion plate 14 for fixing the position of the filter plate 2 is slidably connected inside the insertion hole 13. A fixing screw 15 is fixedly installed on the side of the feed cylinder 1 corresponding to the insertion plate 14. A nut 16 is threadedly connected to the outside of the fixing screw 15. The insertion plate 14 is slidably connected to the outside of the fixing screw 15.

[0031] Filter plate 2: It is inclined to classify the particle size of indium-containing dust, intercept excessively large particles, and use the impact force of falling material to generate vibration, which assists screening and prevents fine powder from adhering and clogging the screen holes.

[0032] Slide 4 and limiting plate 5: The size of the opening of the feed cylinder 1 is adjusted and the feed flow rate is controlled by the sliding of the limiting plate 5 in the slide 4;

[0033] Limiting screw 7: After tightening, it presses against the limiting plate 5 to fix its position and prevent the limiting plate 5 from shifting due to vibration during the feeding process;

[0034] Spring 8 and fixed shaft 11: Spring 8 supports filter plate 2 and provides elastic buffer, so that filter plate 2 will reciprocate under the impact of material. Fixed shaft 11 restricts the movement trajectory of filter plate 2, ensuring that it vibrates in the vertical direction. At the same time, as the positioning carrier of spring 8, elastic vibration can enhance the screening effect.

[0035] Storage bag 9: Collects large particles of material screened out by filter plate 2, making it easy to process them centrally or return them to the crushing process. The flexible material can buffer the impact of materials and reduce dust.

[0036] Insert plate 14: After being inserted into the insertion hole 13, it is pressed against the end of the filter plate 2 to fix its initial installation angle.

[0037] Working principle:

[0038] The first step is to adjust the opening size of the feed cylinder 1 according to the work requirements, i.e., slide the limiting plate 5. When the limiting plate 5 moves to the appropriate position, screw the limiting screw 7 into the threaded hole 6 until the limiting screw 7 is tightly attached to the outside of the limiting plate 5. At this time, the limiting plate 5 is fixed, and the feed flow rate is precisely controlled. At the same time, the material is guided to fall on the side of the filter plate 2 close to the limiting plate 5 so that the material can slide on the filter plate 2. When the material enters the inside of the feed cylinder 1, the material first falls on the inclined filter plate 2 and slides along the plate surface under the action of gravity. At the same time, it is subjected to its own falling impact force. Qualified material falls through the screen holes and enters the conveying channel below the feed cylinder 1, and finally enters the electromagnetic rotary kiln. Particles that are too large are intercepted by the filter plate 2 and continue to slide down the inclined plate surface, falling into the collection bag 9 from the discharge port 3. The end of the collection bag 9 away from the discharge port 3 is open, which makes it easy to guide the collected large particles to the ground for collection.

[0039] In the second step, under the impact of the material, the filter plate 2 compresses the spring 8 downward along the fixed shaft 11, and then resets under the elastic force of the spring 8, forming a high-frequency small-amplitude vibration. The vibration can effectively break up the material agglomerates, avoid screen hole blockage, and improve screening efficiency.

[0040] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A pretreatment device for indium-containing fume dust, comprising a feed cylinder (1), characterized in that, The feed cylinder (1) is provided with a filter plate (2) for material screening. The feed cylinder (1) has an outlet (3) on the side near the filter plate (2). The feed cylinder (1) is provided with a limiting mechanism for guiding the material in. The limiting mechanism includes a chute (4) and a limiting plate (5). The chute (4) is opened inside the feed cylinder (1) and communicates with the outside of the feed cylinder (1). The limiting plate (5) is slidably connected inside the chute (4). The upper surface of the feed cylinder (1) is provided with a threaded hole (6) and communicates with the inside of the chute (4). The threaded hole (6) is threadedly connected to the inside of the threaded hole (6) and a limiting screw (7) for limiting the position of the limiting plate (5). Two springs (8) are provided at both ends of the feed cylinder (1) corresponding to the filter plate (2), and the springs (8) are located below the filter plate (2).

2. The indium-containing fume pretreatment device as described in claim 1, characterized in that, A storage bag (9) is fixedly installed on the side of the feed cylinder (1) corresponding to the discharge port (3).

3. The indium-containing fume pretreatment device as described in claim 1, characterized in that, Both ends of the feed cylinder (1) are fixedly installed with base plates (10), and two fixed shafts (11) are fixedly installed on the upper surface of each base plate (10). The spring (8) is movably sleeved on the outside of the fixed shaft (11).

4. The indium-containing fume pretreatment device as described in claim 1, characterized in that, Both ends of the filter plate (2) are provided with through holes (12); The filter plate (2) is slidably connected to the outside of the fixed shaft (11) through the through hole (12).

5. The indium-containing fume pretreatment device as described in claim 1, characterized in that, The feed cylinder (1) has an insertion hole (13) at one end away from the discharge port (3), and an insertion plate (14) for fixing the position of the filter plate (2) is slidably connected inside the insertion hole (13).

6. The indium-containing fume pretreatment device as described in claim 5, characterized in that, A fixing screw (15) is fixedly installed on one side of the feed cylinder (1) corresponding to the insert plate (14), and a nut (16) is connected to the external thread of the fixing screw (15); The insert plate (14) is slidably connected to the outside of the fixing screw (15).

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