A sleeve kiln feeding hopper
Patent Information
- Application Number
- CN202521343780.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-29
- Publication Date
- 2026-09-04
- Estimated Expiration
- 2035-06-29
AI Technical Summary
[0003]将石灰石投入套筒窑通常需要使用卷扬机拉动沿轨道运动上料斗，目前来说，设置套筒窑的位置，由于安装位置限制，常使得上料斗的安装轨道倾斜角度较小，在轨道底部料斗上料时，往往由于将石灰石投入料斗时发生物料洒落的问题，需要操作人员用铁铲将物料铲起后由抛入料斗顶部敞口，由于料斗在卷扬机提起时，敞口距离地面至少在2m左右，这样使得工作人员将石灰石抛入料斗时较为困难，同时，由于料斗盛料较多，吊臂与料斗的上的固定轴需要使用螺母拧紧，固定，由于料斗出料时需要绕固定轴旋转，固定轴轴端的螺母往往很容易发生脱丝，从而产生安全隐患
本专利通过设置缺口方便操作人员，将散料由缺口抛入料斗内，由于缺口设置于远离导向轮一侧，由于物料倾倒入套筒窑时朝向导向轮一侧翻转，不会出现物料由缺口倒出的问题，同时使用固定杆两端分别焊接料斗与固定螺母，可以有效的避免料斗在与吊臂发生相对转动时，螺母与吊臂发生摩擦而发生螺母脱丝的问题。
Smart Images
Figure CN224719143U_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of steel production, and specifically to a sleeve kiln feeding hopper. Background Technology
[0002] Steel plants typically have sleeve kilns, which are vertical kilns mainly composed of an inner cylinder and an outer cylinder, forming an annular space between them. Limestone is evenly distributed on the material bed between the inner and outer cylinders by a distributor and moves from top to bottom within the kiln. Meanwhile, gas and air enter through the bottom of the inner and outer cylinders, pass through the material bed from bottom to top, and exchange heat with the limestone, enabling the limestone to complete the preheating, calcination, and cooling processes, ultimately producing active lime.
[0003] Adding limestone to a sleeve kiln typically requires a winch to pull a hopper along a track. Currently, due to installation limitations, the track for the hopper is often inclined at a small angle. When adding limestone to the hopper at the bottom of the track, spillage often occurs, requiring operators to shovel the material and throw it into the top opening of the hopper. Since the opening is at least 2 meters above the ground when the winch lifts the hopper, it is difficult for workers to throw limestone into the hopper. Furthermore, because the hopper holds a large amount of material, the fixed shaft between the boom and the hopper needs to be tightened with nuts. As the hopper rotates around the fixed shaft when discharging, the nuts on the shaft end are prone to unscrewing, creating a safety hazard.
[0004] Therefore, a hopper is needed that facilitates the throwing of bulk materials and allows for effective fixing of the nuts on the fixed shaft. Summary of the Invention
[0005] This utility model relates to a sleeve kiln feeding hopper. By fixing the nut on the fixed shaft to the hopper arm with a fixing rod, the nut is prevented from coming loose during use. At the same time, a notch is provided on the hopper wall to facilitate the operator to put bulk materials into the hopper.
[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A feeding hopper for a sleeve kiln includes a hopper with an open top. A guide wheel is provided on one side of the hopper. A lifting arm is hinged to each end face of the hopper. A fixed shaft is fixedly connected to each end face of the hopper. A through hole is provided on the lifting arm. A nut is threaded through the through hole and the nut is fixedly connected to the outer wall of the hopper by a fixing rod. A notch is provided on the side of the hopper away from the guide wheel.
[0007] Furthermore, a copper bushing is nested inside the through hole, and the fixed shaft is rotatably disposed within the copper bushing.
[0008] Furthermore, the fixed shaft is fitted with two limiting partitions, which are respectively disposed at both ends of the copper bushing.
[0009] Furthermore, the two ends of the fixing rod are welded and fixedly connected to the outer wall of the hopper and the nut, respectively. The fixing rod is L-shaped and has an movable gap between the fixing rod and the lower end of the boom, so that the lower end of the boom can swing during operation.
[0010] Furthermore, a baffle is provided on the notch.
[0011] Furthermore, the upper end of the baffle is fixedly connected to the side wall of the hopper, and the two sides of the baffle are fixedly connected to the inner wall of the hopper through side plates.
[0012] Furthermore, the angle between the baffle and the inner wall of the hopper is 20~40°.
[0013] Compared with the prior art, the present invention has the following beneficial effects: This patented design features a notch to facilitate operation, allowing bulk materials to be thrown into the hopper through the notch. Because the notch is located away from the guide wheel, the material flips towards the guide wheel when poured into the sleeve kiln, preventing material from spilling out through the notch. Additionally, by welding the hopper and the fixing nut to both ends of the fixing rod, the problem of the nut coming loose due to friction between the nut and the boom when the hopper rotates relative to the boom can be effectively prevented. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model.
[0015] Figure 2 This is a schematic diagram of the cross-sectional structure of the copper bushing. Detailed Implementation
[0016] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0017] like Figures 1-2As shown, a sleeve kiln feeding hopper includes a hopper 10 with an open top. A guide wheel 104 is provided on one side of the hopper 10. A lifting arm 101 is hinged to both ends of the hopper 10. A fixed shaft 102 is fixedly connected to both ends of the hopper 10. A through hole 1011 is provided on the lifting arm 101. The fixed shaft 102 passes through the through hole 1011 and is threaded with a nut 1012. The nut 1012 is fixedly connected to the outer wall of the hopper 10 by a fixing rod 1013. A notch 103 is provided on the side of the hopper 10 away from the guide wheel 104.
[0018] Specifically, the hopper is installed on the lifting device, which is existing technology and will not be described in detail here. The guide wheel 104 is installed on the lifting device track. When the hopper 10 is at the lowest position of the lifting device, the notch 103 is 1.2~1.6m above the ground. This height makes it convenient for the operator to scoop up the bulk material and throw it into the hopper 10 through the notch 103. At the same time, in order to prevent the nut 1012 from becoming unscrewed due to friction between the boom 101 and the nut 1012 when the hopper 10 and the boom 101 rotate, a fixing rod 1013 is set up. The two ends of the fixing rod 1013 are fixed to the nut 1012 and the outer wall of the hopper 10, respectively. This setting can not only effectively prevent the nut 1012 from becoming unscrewed, but also allow for quick inspection of the nut 1012's condition by observing the status of the fixing rod 1013 during maintenance.
[0019] A further solution is to prevent wear between the fixed shaft 102 and the through hole 1011, a copper bushing 1014 is nested inside the through hole 1011, and the fixed shaft 102 is rotatably disposed inside the copper bushing 1014. In this way, the normal operation of the equipment can be ensured by replacing the copper bushing 1014.
[0020] Furthermore, in order to facilitate the limiting of the copper bushing 1014, the fixed shaft 102 is fitted with two limiting partitions 1021, which are respectively disposed at both ends of the copper bushing 1014. This arrangement can limit the copper bushing 1014 and also facilitate the threaded connection of the nut 1012 to the free end of the fixed shaft 102.
[0021] To further prevent the fixing rod 1013 from affecting the rotation between the hopper 10 and the boom 101, the two ends of the fixing rod 1013 are welded and fixedly connected to the outer wall of the hopper 10 and the nut 1012, respectively. The fixing rod 1013 is L-shaped and has an movable gap between the fixing rod 1013 and the lower end of the boom 101, so that the lower end of the boom 101 can swing during operation.
[0022] Furthermore, in order to prevent material overflow when it exceeds the position of the notch 103, a baffle 1031 is provided on the notch 103, and the projection of the baffle 1031 toward the notch 103 covers the notch 103.
[0023] Furthermore, to ensure the stability of the baffle 1031, the upper end of the baffle 1031 is fixedly connected to the side wall of the hopper 10, and the two sides of the baffle 1031 are fixedly connected to the inner wall of the hopper 10 through side plates 1032. With this arrangement, since the material is solid, when the hopper is filled with material, the material cannot overflow from the vertical gap formed by the baffle 1031 and the side wall of the hopper 10.
[0024] Furthermore, the angle between the baffle 1031 and the inner wall of the hopper 10 is 20~40°, with a preferred angle of 30°.
[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A feeding hopper for a sleeve kiln, comprising a hopper (10), wherein the top of the hopper (10) is open, a guide wheel (104) is provided on one side of the hopper (10), and a lifting arm (101) is hinged and fixed to both ends of the hopper (10), characterized in that, Fixed shafts (102) are fixedly connected to both ends of the hopper (10). A through hole (1011) is provided on the boom (101). The fixed shaft (102) passes through the through hole (1011) and is threaded with a nut (1012). The nut (1012) is fixedly connected to the outer wall of the hopper (10) by a fixed rod (1013). A notch (103) is provided on the side of the hopper (10) away from the guide wheel (104).
2. The sleeve kiln feeding hopper according to claim 1, characterized in that, A copper bushing (1014) is nested inside the through hole (1011), and the fixed shaft (102) is rotatably disposed inside the copper bushing (1014).
3. The sleeve kiln feeding hopper according to claim 2, characterized in that, The fixed shaft (102) is fitted with two limiting partitions (1021), which are respectively disposed at both ends of the copper bushing (1014).
4. The sleeve kiln feeding hopper according to claim 3, characterized in that, The two ends of the fixing rod (1013) are welded and fixed to the outer wall of the hopper (10) and the nut (1012) respectively. The fixing rod (1013) is L-shaped and has an movable gap between the fixing rod (1013) and the lower end of the boom (101) for the lower end of the boom (101) to swing during operation.
5. The sleeve kiln feeding hopper according to claim 4, characterized in that, A baffle (1031) is provided on the notch (103).
6. The sleeve kiln feeding hopper according to claim 5, characterized in that, The upper end of the baffle (1031) is fixedly connected to the side wall of the hopper (10), and the two sides of the baffle (1031) are fixedly connected to the inner wall of the hopper (10) through side plates (1032).
7. A sleeve kiln feeding hopper according to claim 6, characterized in that, The angle between the baffle (1031) and the inner wall of the hopper (10) is 20~40°.