A pyrite roasting feed control device

Abstract

The application relates to a pyrite roasting feed control device and belongs to the technical field of pyrite treatment, which comprises a conveying device and further comprises a control system, the control system comprises a material distribution homogenizing mechanism and an air flow adjusting mechanism which are sequentially arranged along the material conveying direction, the material distribution homogenizing mechanism and the air flow adjusting mechanism are both arranged above the conveying device, the material distribution homogenizing mechanism is used for flattening the pyrite on the conveying device to form a material layer with uniform thickness, the air flow adjusting mechanism is used for air flow treatment on the pyrite material layer after flattening to reduce the humidity, the material distribution homogenizing mechanism and the air flow adjusting mechanism are connected through a motion coupling mechanism, and the motion coupling mechanism drives the material distribution homogenizing mechanism to work synchronously when the air flow adjusting mechanism operates. The homogenizing and air flow mechanism controlled in linkage flattens and pre-dries the pyrite before entering the furnace, effectively reduces the clumping and energy consumption, and improves the roasting efficiency.

Description

Technical Field

[0001] This application relates to the field of pyrite processing technology, and in particular to a pyrite roasting feed control device. Background Technology

[0002] Currently, pyrite is an important raw material for sulfuric acid production, primarily through a roasting process that generates sulfur dioxide flue gas. During the roasting process, the physical state of the pyrite raw material, especially the uniformity and moisture content of the material layer before entering the roasting furnace, has a crucial impact on the efficiency and stability of the roasting reaction, as well as the quality of the final product.

[0003] In related technologies, pyrite is typically fed directly into the roasting furnace using a simple belt conveyor. This feeding method has problems: when the pyrite raw material has a high moisture content, the wet material will clump together, and a large amount of heat energy is required in the early stages of roasting to evaporate the moisture, increasing energy consumption. At the same time, the water vapor may also affect the subsequent flue gas treatment and the quality of sulfuric acid.

[0004] Regarding the aforementioned technologies, the inventors believe that the following defects exist: the existing pyrite feeding system is insufficient in terms of material distribution uniformity and humidity control, resulting in high energy consumption and low efficiency of the entire feeding system, which ultimately affects the stability and economy of the roasting process. Summary of the Invention

[0005] To address the shortcomings in humidity control, this application provides a feed control device for pyrite roasting.

[0006] The technical solution of the pyrite roasting feed control device provided in this application is as follows: A pyrite roasting feed control device includes a conveying device and further includes: The control system includes a material distribution homogenization mechanism and an airflow regulating mechanism arranged sequentially along the material conveying direction; The material distribution and homogenization mechanism and the airflow regulation mechanism are both located above the conveying device. The material distribution and homogenization mechanism is used to flatten the pyrite on the conveying device to form a material layer of uniform thickness. The airflow regulation mechanism is used to treat the flattened pyrite material layer with airflow to reduce its humidity. The material distribution and homogenization mechanism and the airflow regulation mechanism are connected by a motion coupling mechanism. When the airflow regulation mechanism is running, the material distribution and homogenization mechanism is driven to work synchronously through the motion coupling mechanism.

[0007] By adopting the above technical solution, this device integrates the material leveling and drying processes into the feeding process, and links the two processes through a motion coupling mechanism. Only one drive source is needed to simultaneously drive the airflow regulating mechanism to generate drying airflow and drive the material distribution homogenization mechanism to perform reciprocating leveling motion. This ensures a uniform material layer and consistent air permeability, effectively reduces the surface moisture of the material before it enters the furnace, and features a compact structure, reducing energy consumption and equipment costs.

[0008] Preferably, a first protective housing and a second protective housing are provided above the transmission device, at least two supports are fixedly connected to the second protective housing, the material distribution and homogenization mechanism is housed in the first protective housing, and the airflow regulating mechanism is housed in the second protective housing.

[0009] By adopting the above technical solution, the first protective shell and the second protective shell can protect the internal homogenization mechanism and airflow regulation mechanism respectively, preventing material dust from entering and affecting the transmission components. At the same time, the support facilitates the stable installation of the entire control system in the designated position.

[0010] Preferably, an airflow guide hood that runs vertically through the bottom wall of the second protective housing is fixedly connected to the bottom wall. A power input shaft is connected to the inner wall of the airflow guide hood via a support assembly. A wind turbine assembly is fixedly connected to the power input shaft. A filter screen is detachably connected to the bottom surface of the airflow guide hood.

[0011] By adopting the above technical solution, the airflow guide hood can concentrate and directionally blow the airflow generated by the impeller assembly onto the material layer, improving drying efficiency. The filter screen can prevent large pieces of material or debris from being sucked into the airflow regulating mechanism, and its detachable design facilitates daily cleaning and maintenance.

[0012] Preferably, a main drive shaft is provided inside the second protective housing. One end of the main drive shaft is connected to a drive unit. A pair of meshing first bevel gears and second bevel gears are respectively provided on the main drive shaft and the power input shaft to transmit power. A bearing seat for supporting and stabilizing is sleeved on the outer periphery of the main drive shaft.

[0013] By adopting the above technical solution, the bevel gear transmission can efficiently and reliably change the direction of the power from the drive unit and transmit it to the wind turbine assembly. It features a compact structure and precise transmission ratio. The bearing seat ensures the stability of the main drive shaft during high-speed rotation.

[0014] Preferably, a driven drive shaft is rotatably connected to the inner wall of the first protective housing, and a cam roller is fixedly connected to the outer periphery of the driven drive shaft. A continuous, wavy curved guide groove is formed on the surface of the cam roller.

[0015] By adopting the above technical solution, the cam roller and the curved guide groove form a basic mechanism that converts rotational motion into regular reciprocating oscillation, providing a power source for subsequent fabric movement. The design is ingenious and the motion trajectory is controllable.

[0016] Preferably, a guide hole is provided on the bottom wall of the first protective shell, and a movable connecting member is slidably fitted in the guide hole. A material actuating member and a transmission rod are fixedly connected to the movable connecting member, and a spherical hinge joint is fixedly connected to the end of the transmission rod. The spherical hinge joint is slidably disposed in the curved guide groove. When the cam roller rotates, the transmission rod and the material actuating component are driven to reciprocate through the cooperation of the curved guide groove and the spherical hinge joint.

[0017] By adopting the above technical solution, the cooperation between the hinge joint and the curved guide groove effectively avoids motion jamming, ensuring that the transmission rod can smoothly follow the guide groove trajectory, thereby driving the material moving part to oscillate back and forth above the material layer, achieving the function of evenly spreading the material.

[0018] Preferably, the motion coupling mechanism includes a driving wheel and a driven wheel, which are connected by a flexible connector. One end of the main drive shaft extending outside the first protective housing is connected to the driving wheel, and the driven drive shaft is connected to the driven wheel.

[0019] By adopting the above technical solutions, flexible connectors (such as synchronous belts or chains) can transmit power over long distances and ensure synchronous rotation between the main drive shaft and the driven drive shaft, thereby enabling two mechanisms to be driven simultaneously by one drive source, which is the core of motion coupling.

[0020] Preferably, it also includes a central controller, which is electrically connected to the drive unit of the transmission device and the airflow regulating mechanism, for coordinating and controlling the feeding speed and airflow processing intensity.

[0021] By adopting the above technical solution, the central controller can intelligently adjust the feeding speed of the conveying device and the wind force of the airflow adjustment mechanism according to actual production needs, so as to achieve precise matching between the feeding amount and the pretreatment intensity, and further optimize the entire feeding process.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. By setting up an airflow regulation mechanism, the surface of pyrite is pretreated by airflow before it enters the roasting furnace, effectively reducing the material moisture content. This reduces the clumping of pyrite due to its high moisture content and avoids the additional heat consumption caused by directly feeding high-moisture materials into the furnace, thereby improving roasting efficiency and reducing energy consumption.

[0023] 2. By setting up a material distribution homogenization mechanism, the accumulated pyrite is first spread and homogenized before airflow treatment, forming a material layer of uniform thickness. This not only improves the uniformity of subsequent airflow and enhances the dehydration effect, but also helps to avoid local agglomeration caused by uneven material accumulation, further optimizing the physical state of the material entering the furnace.

[0024] 3. By connecting the motion coupling mechanism, the actions of the material distribution and homogenization mechanism and the airflow regulation mechanism are organically combined, enabling the two mechanisms to operate synchronously and collaboratively using only a single power source. This effectively reduces overall energy consumption and improves system integration and operational economy. Attached Figure Description

[0025] Figure 1 This is a perspective view of an embodiment of this application.

[0026] Figure 2 This is a structural diagram of an embodiment of this application.

[0027] Figure 3 This is a structural diagram of the airflow regulating mechanism in the embodiments of this application.

[0028] Figure 4 This is a schematic diagram of the airflow guide hood and its internal structure in an embodiment of this application.

[0029] Figure 5 This is a structural diagram of the material distribution homogenization mechanism in the embodiments of this application.

[0030] Figure 6 This application's embodiments are about Figure 5 A magnified view at point A.

[0031] Explanation of reference numerals in the attached drawings: 1. Transmission device; 2. Control system; 21. First protective housing; 211. Guide hole; 22. Second protective housing; 221. Support; 3. Material distribution and homogenization mechanism; 31. Driven drive shaft; 32. Cam roller; 33. Curved guide groove; 34. Movable connector; 35. Material actuating component; 36. Transmission rod; 37. Spherical hinge joint; 4. Airflow regulating mechanism; 41. Airflow guide cover; 42. Support assembly; 43. Power input shaft; 44. Wind turbine assembly; 45. Filter screen; 46. Main drive shaft; 461. Shaft seat; 47. Drive unit; 48. First bevel gear; 49. Second bevel gear; 5. Motion coupling mechanism; 51. Driving wheel; 52. Driven wheel; 53. Flexible connector; 6. Central controller. Detailed Implementation

[0032] The following is in conjunction with Appendix 1. Figure 6 This application will be described in further detail.

[0033] Example 1: This application discloses a pyrite roasting feed control device, referring to... Figure 1 and Figure 2 As shown, the system includes a transmission device 1. In this embodiment, the transmission device 1 is a conventional belt conveyor, specifically model TD75. The transmission device 1 has its own output motor that provides power for its operation.

[0034] During the actual feeding process, pyrite tends to accumulate on conveyor device 1. This accumulation reduces internal porosity and air permeability, making it difficult for moisture trapped between pyrite particles to evaporate effectively, thus affecting the uniformity and stability of subsequent roasting. To reduce this situation...

[0035] A control system 2 is installed above the conveying device 1, including a first protective shell 21 and a second protective shell 22 arranged sequentially along the direction in which the pyrite is transported. Supports 221 are fixedly connected to both sides of the bottom end of the second protective shell 22. The adjacent sides of the first protective shell 21 and the second protective shell 22 are fixedly connected together. A material distribution and homogenization mechanism 3 and an airflow regulating mechanism 4 are respectively installed inside the first protective shell 21 and the second protective shell 22.

[0036] During operation, the pyrite is conveyed by the conveying device 1, first passing under the first protective shell 21, where the material distribution and homogenization mechanism 3 spreads the pyrite that has been piled up, thus forming a uniform layer of material. Then, the pyrite passes under the second protective shell 22, where the airflow regulating mechanism 4 continuously blows air onto the pyrite below, reducing the humidity on the surface of the pyrite and thus reducing the likelihood of the pyrite clumping together.

[0037] Example 2 In order to provide a detailed explanation of the working principle and internal structure of the material distribution homogenization mechanism 3 and the airflow regulation mechanism 4 in this utility model, this utility model hereby presents Embodiment 2.

[0038] Referring to Figures 2, 3 and 4, the airflow regulating mechanism 4 includes an airflow guide cover 41 fixedly connected to the bottom wall of the second protective housing 22, a wind turbine assembly 44, a main drive shaft 46, a drive unit 47, and a meshing first bevel gear 48 and a second bevel gear 49.

[0039] Referring to Figure 4, the airflow guide shroud 41 is vertically continuous. A power input shaft 43 is disposed within the airflow guide shroud 41, vertically arranged along the inner cavity of the airflow guide shroud 41. A support assembly 42 is rotatably connected to the outer wall of the power input shaft 43. In this embodiment, the support assembly 42 is a rotating frame, fixedly connected to the inner wall of the airflow guide shroud 41. The impeller assembly 44 (using centrifugal blades) is located within the airflow guide shroud 41 and fixedly connected to the outer wall of the power input shaft 43. To reduce the impact of external dust and impurities on the blades of the impeller assembly 44, a filter screen 45 is detachably connected to the bottom surface of the airflow guide shroud 41 via a snap-fit ​​mechanism.

[0040] One end of the main drive shaft 46 is fixedly connected to the drive unit 47. In this embodiment, the drive unit 47 is a drive motor, which is fixedly connected to the side wall of the second protective housing 22. Meanwhile, to ensure more stable rotation of the main drive shaft 46, a bearing seat 461 is rotatably connected to the side of the outer wall of the main drive shaft 46 away from the drive unit 47. The bearing seat 461 is fixedly connected to the bottom wall of the second protective housing 22. Finally, the end of the main drive shaft 46 away from the drive unit 47 passes through the side wall of the second protective housing 22 and extends outwards for connecting to external transmission components.

[0041] At the same time, refer to Figure 5 and Figure 6 As shown, the material distribution and homogenization mechanism 3 includes a driven transmission shaft 31, a movable connecting member 34, a material actuating member 35, a transmission rod 36, and a spherical hinge joint 37.

[0042] The driven drive shaft 31 is rotatably connected to the inner wall of the first protective housing 21 via bearings. The cam roller 32 is fixedly mounted on the outer wall of the driven drive shaft 31, and its cylindrical surface is machined with a continuous, wavy curved guide groove 33. A guide hole 211 is provided on the bottom wall of the first protective housing 21, and the movable connector 34 slides within this guide hole 211. The material actuating component 35 is fixedly connected to the bottom end of the movable connector 34, that is, the end of the movable connector 34 located outside the first protective housing 21. The drive rod 36 is fixedly connected to the top end of the movable connector 34, that is, the end of the movable connector 34 located inside the first protective housing 21. Finally, a spherical hinge joint 37 is fixedly connected to the end of the drive rod 36 away from the movable connector 34, and the spherical hinge joint 37 is embedded in the curved guide groove 33 and can slide along its trajectory.

[0043] In addition, in order to allow the airflow regulating mechanism 4 to operate, that is, to allow the material distribution homogenization mechanism 3 to operate together when the drive unit 47 is in use, so that one drive energy can drive the two structures to operate at the same time, thereby reducing energy consumption.

[0044] A motion coupling mechanism 5 is jointly provided on the first protective housing 21 and the second protective housing 22. The motion coupling mechanism 5 includes a driving wheel 51 and a driven wheel 52. In this embodiment, the driving wheel 51 and the driven wheel 52 are respectively selected as a large synchronous pulley and a small synchronous pulley.

[0045] The outwardly extending end of the main drive shaft 46 is fixedly connected to the drive wheel 51, and the end of the driven drive shaft 31 near the drive wheel 51 passes through the first protective housing 21 and is fixedly connected to the driven wheel 52. Finally, the drive wheel 51 and the driven wheel 52 are connected by a flexible connector 53. In this embodiment, the flexible connector 53 is a corresponding synchronous belt.

[0046] In addition, the device includes a central controller 6. This central controller 6 is preferably a PLC, which is electrically connected to the drive motor of the transmission device 1 and the drive unit 47 of the airflow regulating mechanism 4 via control lines. According to a preset program, the central controller 6 can coordinate and control the feeding speed of the transmission device 1 and the airflow intensity of the airflow regulating mechanism 4, thereby achieving automated linkage between the feeding and pretreatment processes.

[0047] Work process: The drive unit 47 starts, driving the main drive shaft 46 to rotate. This rotation is transmitted to the power input shaft 43 via the meshing first bevel gear 48 and second bevel gear 49, driving the impeller assembly 44 to rotate at high speed. This generates a downward airflow to dry the flattened pyrite layer. Simultaneously, the main drive shaft 46 drives the drive wheel 51 to rotate, which in turn drives the driven wheel 52 via the flexible connector 53. This, in turn, drives the driven drive shaft 31 and the cam roller 32 to rotate synchronously. When the cam roller 32 rotates, its wavy curved guide groove 33 drives the transmission rod 36 via the spherical hinge joint 37. This causes the movable connector 34 to drive the material agitator 35 to oscillate back and forth along the guide hole 211, thereby continuously and evenly flattening the pyrite on the conveying device 1.

[0048] It should be noted that in this utility model, the belt in the transmission device 1 is concave, and the stroke of the guide hole 211 is less than the width of the belt. That is, when the material actuating component 35 swings back and forth, the pyrite will not be pushed out of the transmission device 1.

[0049] The implementation principle of the pyrite roasting feed control device in this application embodiment is as follows: the device integrates the leveling and drying functions into one unit through mechanical linkage (motion coupling mechanism 5), and only one drive source is needed to simultaneously complete uniform material distribution and airflow drying. It has a compact structure and low energy consumption.

[0050] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A feed control device for pyrite roasting, comprising a conveying device (1), characterized in that, Also includes: The control system (2) includes a material distribution homogenization mechanism (3) and an airflow regulating mechanism (4) arranged sequentially along the material conveying direction. The material distribution homogenization mechanism (3) and the airflow regulation mechanism (4) are both located above the conveying device (1). The material distribution homogenization mechanism (3) is used to flatten the pyrite on the conveying device (1) to form a uniform thickness material layer. The airflow regulation mechanism (4) is used to treat the flattened pyrite material layer with airflow to reduce its humidity. The material distribution homogenization mechanism (3) and the airflow regulation mechanism (4) are connected by a motion coupling mechanism (5). When the airflow regulation mechanism (4) is running, the material distribution homogenization mechanism (3) is driven to work synchronously through the motion coupling mechanism (5).

2. The pyrite roasting feed control device according to claim 1, characterized in that: The transmission device (1) is provided with a first protective shell (21) and a second protective shell (22) above it. At least two supports (221) are fixedly connected to the second protective shell (22). The material distribution and homogenization mechanism (3) is housed in the first protective shell (21), and the airflow regulating mechanism (4) is housed in the second protective shell (22).

3. The pyrite roasting feed control device according to claim 2, characterized in that: The bottom wall of the second protective housing (22) is fixedly connected to an airflow guide hood (41) that runs vertically through the bottom. The inner wall of the airflow guide hood (41) is connected to a power input shaft (43) via a support assembly (42). A wind turbine assembly (44) is fixedly connected to the power input shaft (43). A filter screen (45) is detachably connected to the bottom surface of the airflow guide hood (41).

4. The pyrite roasting feed control device according to claim 3, characterized in that: The second protective housing (22) is provided with a main drive shaft (46), one end of which is connected to a drive unit (47). A pair of meshing first bevel gears (48) and second bevel gears (49) are respectively provided on the main drive shaft (46) and the power input shaft (43) to transmit power. The outer periphery of the main drive shaft (46) is fitted with a bearing seat (461) for supporting and stabilizing.

5. The pyrite roasting feed control device according to claim 4, characterized in that: A driven drive shaft (31) is rotatably connected to the inner wall of the first protective housing (21), and a cam roller (32) is fixedly connected to the outer periphery of the driven drive shaft (31). A continuous, wavy curved guide groove (33) is opened on the surface of the cam roller (32).

6. The pyrite roasting feed control device according to claim 5, characterized in that: The bottom wall of the first protective shell (21) is provided with a guide hole (211), and a movable connector (34) is slidably fitted in the guide hole (211). A material actuating component (35) and a transmission rod (36) are fixedly connected to the movable connector (34). A spherical hinge joint (37) is fixedly connected to the end of the transmission rod (36). The spherical hinge joint (37) is slidably disposed in the curved guide groove (33). When the cam roller (32) rotates, the transmission rod (36) and the material actuating component (35) are driven to reciprocate through the cooperation of the curved guide groove (33) and the spherical hinge joint (37).

7. The pyrite roasting feed control device according to claim 5, characterized in that: The motion coupling mechanism (5) includes a driving wheel (51) and a driven wheel (52), which are connected by a flexible connector (53). The main drive shaft (46) extends to one end outside the first protective housing (21) and is connected to the driving wheel (51). The driven drive shaft (31) is connected to the driven wheel (52).

8. A pyrite roasting feed control device according to any one of claims 3 to 7, characterized in that, It also includes a central controller (6), which is electrically connected to the drive unit (47) of the transmission device (1) and the airflow regulating mechanism (4) for coordinating and controlling the feeding speed and airflow processing intensity.

Images