An extendable, adjustable spreader box

Abstract

The utility model discloses a kind of extendable, adjustable formula material spreading box, including box and spreading plate, the box bottom two sides symmetry is equipped with supporting plate, two described supporting plate upper portion is opened along supporting plate length direction and has strip-shaped through slot, between two strip-shaped through slots, movable shaft is equipped, the spreading plate front side bottom symmetry is formed with connecting web, the spreading plate is installed on movable shaft by connecting web, the movable shaft center place is fixedly sleeved with connecting piece, the rear side of the connecting piece is connected with push-pull rod, the corresponding place of cabin door with push-pull rod is fixedly installed with the thread sleeve matched with the thread on push-pull rod, the end of push-pull rod away from connecting piece passes through thread sleeve and is located outside cabin door, the center line of connecting piece, movable shaft and spreading plate is located in same vertical plane. The utility model has realized that the inclination angle of spreading plate is adjustable, also realized that the exceeding distance of spreading plate is adjustable, and it is also convenient to replace after spreading plate damage.

Description

Technical Field

[0001] This utility model belongs to the field of cement clinker production technology, specifically relating to an extendable and adjustable spreading box. Background Technology

[0002] The material distribution box is generally located at the end of the cyclone discharge pipe of the kiln tail preheater in the main equipment for cement clinker production. Its main function is to evenly disperse the material falling in the discharge pipes of each stage of the cyclone, and at the same time, to fully suspend the material in the negative pressure rotating airflow, so that the material can fully exchange heat with the high temperature flue gas.

[0003] The angle of the spreading plate directly affects the angle at which the material bounces when it hits the spreading plate, thus affecting the material dispersion effect. At the same time, the angle of the spreading plate also affects the height of the material falling. Current experience shows that the larger the angle, the higher the material falls.

[0004] The distance of the spreading plate can affect the range of material dispersion. Since the process conditions of each plant are different, the wind speed and flow field of the furnace side wall are different. Adjusting the distance of the spreading plate can improve the material dispersion effect and also improve the material trampling situation.

[0005] Currently, the existing technology includes a patent document titled "An Adjustable Spreading Box" (patent publication number CN219841801U), which describes a spreading box that allows for angle adjustment of the spreading plate by setting a lifting screw at the bottom rear of the spreading plate and a fixed hinge at the front. However, it cannot adjust the distance the spreading plate extends beyond its designated position. A subsequent patent document, titled "An Externally Replaceable and Adjustable Spreading Box" (patent publication number CN221781258U), describes a spreading box that, in addition to angle adjustment via a lifting screw, allows the spreading plate to be removed from the mandrel through a notch. A detachable cover plate is also provided at the corresponding location in the spreading box, enabling replacement of the spreading plate. This facilitates replacement in case of damage and allows adjustment of the spreading plate's extension length. However, this method of adjusting the extension length is cumbersome and requires the preparation of various sizes of spreading plates, which is detrimental to efficient production. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide an extendable and adjustable material spreading box that can meet the adjustment requirements of the angle of the spreading plate and the extension distance of the spreading plate during the production process, in order to address the shortcomings of the prior art.

[0007] The technical solution adopted by this utility model is as follows: an extendable and adjustable material spreading box, including a box body and a spreading plate. The top of the box body has a material inlet, the middle of the box body has a baffle plate, and a cleaning port is opened on the side wall of the box body near the baffle plate. Support plates are symmetrically installed on both sides of the bottom of the box body. The spreading plate is located between the two support plates. A lifting mechanism is provided below the rear side of the spreading plate. An openable and closable hatch is also provided on the rear side of the box body corresponding to the spreading plate. Strip-shaped grooves are opened along the length of the support plates on the upper part of the two support plates. A movable shaft is provided between the two strip-shaped grooves, with both ends of the movable shaft placed in the two strip-shaped grooves respectively. The bottom front side of the spreading plate is symmetrically arranged... The device has connecting ribs with connecting holes that rotatably engage with the movable shaft. The material spreading plate is mounted on the movable shaft via the connecting ribs. Limiting retaining rings are provided on both sides of the movable shaft near the support plate and opposite to the connecting ribs. A connector is fixedly fitted at the center of the movable shaft. A push-pull rod is connected to the rear side of the connector. The push-pull rod has threads on its end away from the connector. A threaded sleeve that matches the threads on the push-pull rod is fixedly installed on the hatch corresponding to the push-pull rod. The threaded sleeve passes through the hatch. The end of the push bar away from the connector passes through the threaded sleeve and is located outside the hatch. The center lines of the connector, the movable shaft, and the material spreading plate are located in the same vertical plane.

[0008] Preferably, the top center of the strip-shaped through groove has an outlet for the movable shaft to move upwards and remove the material.

[0009] Preferably, the connector has a U-shaped connecting block formed on the side away from the movable shaft, with a connecting notch at the bottom center of the connecting block, and an annular groove matching the connecting notch at the end of the push-pull rod.

[0010] Preferably, the lifting mechanism includes a lifting rod and a lifting sleeve. The lifting sleeve is fixedly installed at the bottom of the box and extends through the bottom of the box. The lifting sleeve is located on the side near the movable shaft. The lower section of the lifting rod is threaded into the lifting sleeve and extends out of the lifting sleeve outside the box. The upper end of the lifting rod abuts against the bottom of the rear side of the spreading plate.

[0011] The beneficial effects of this utility model are as follows:

[0012] (1) The bottom front side of the spreading plate is connected to the rotating shaft through the connecting stiffener plate, and the bottom rear side is lifted or lowered by the lifting mechanism, so that the spreading plate can be adjusted and controlled by tilting around the rotating shaft.

[0013] (2) After the material spreading plate is connected to the movable shaft through the connecting rib plate, it is connected to the push-pull rod through the connecting piece, and cooperates with the movable shaft in the limit of the strip groove, so that the push-pull rod drives the movable shaft to move back and forth in the strip groove, thereby driving the material spreading plate to move and realizing the adjustment and control of the material spreading plate exceeding the distance.

[0014] (3) The outlet provided on the strip channel can be adjusted by pushing and pulling the movable shaft to the bottom of the outlet by pushing and pulling the rod, and then the movable shaft can be lifted by pushing and pulling the rod to remove the movable shaft. The movable shaft and the spreading plate can be removed together through the hatch for replacement and maintenance.

[0015] This invention achieves adjustable tilt angle and adjustable overshoot distance of the spreading plate, while also facilitating replacement after the spreading plate is damaged. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of this utility model (the material spreading plate is not shown).

[0018] Figure 3 This is a schematic diagram of the structure of this utility model from below;

[0019] Figure 4 This utility model Figure 3 Enlarged view of the middle U section;

[0020] Figure 5 This is a schematic diagram of the connector of this utility model;

[0021] Figure 6 This is a schematic diagram of the push-pull rod of this utility model.

[0022] In the diagram: 1. Box body; 2. Spreading plate; 3. Feed inlet; 4. Baffle plate; 5. Cleaning port; 6. Support plate; 7. Lifting mechanism; 8. Door; 9. Strip groove; 10. Movable shaft; 11. Connecting stiffener; 12. Limiting retaining ring; 13. Connecting piece; 14. Push-pull rod; 15. Threaded sleeve; 16. Outlet; 17. Connecting block; 18. Connecting notch; 19. Annular groove; 71. Lifting rod; 72. Lifting sleeve. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0024] Example

[0025] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, this embodiment provides an extendable and adjustable material spreading box, including a box body 1 and a spreading plate 2. The top of the box body 1 is provided with a material inlet 3, and the middle of the box body 1 is provided with a baffle plate 4. A cleaning port 5 is opened on the side wall of the box body 1 near the baffle plate 4. Support plates 6 are symmetrically installed on both sides of the bottom of the box body 1. A closable door 8 is also provided on the rear side of the box body 1 corresponding to the spreading plate 2. The upper part of the two support plates 6 has a strip-shaped through groove 9 along the length direction of the support plates 6. The top middle position of the strip-shaped through groove 9 has an outlet 16 for removing and installing a movable shaft 10. The movable shaft 10 is located between the two strip-shaped through grooves 9, and the two ends of the movable shaft 10 are respectively placed in the two strip-shaped through grooves 9. The height of the strip-shaped through groove 9 matches the diameter of the movable shaft 10. The bottom of the front side of the spreading plate 2 is... The material spreading plate 2 is symmetrically formed with connecting ribs 11. The connecting ribs 11 have connecting holes that rotatably engage with the movable shaft 10. The material spreading plate 2 is fitted onto the movable shaft 10 through the connecting holes, allowing it to be mounted on the movable shaft 10 via the connecting ribs 11 and rotate around the movable shaft 10. Limiting rings 12 are provided on both sides of the movable shaft 10 near the support plates 6 and opposite to the connecting ribs 11. The limiting rings 12 on the inner sides of the two support plates 6 can effectively prevent the movable shaft 10 from swaying left and right, thus limiting the movable shaft 10 to move forward and backward along the strip groove 9. The limiting rings 12 on the outer sides of the two connecting ribs 11 can effectively prevent the material spreading plate 2 from swaying left and right, thus limiting the material spreading plate 2 to move forward and backward, thus allowing the material spreading plate 2 to rotate around the movable shaft 10.

[0026] A connector 13 is fixedly fitted at the center of the movable shaft 10. A U-shaped connecting block 17 is formed on the side of the connector 13 away from the movable shaft 10. A connecting notch 18 is opened at the bottom of the connecting block 17. An annular groove 19 is opened at one end of the push-pull rod 14. The annular groove 19 mates with the connecting notch 18, and the push-pull rod 14 is connected to the connector 13 by the annular groove 19 engaging with the connecting notch 18. The section of the push-pull rod 14 away from the connector 13 is threaded. The door 8 is fixedly installed at the position corresponding to the push-pull rod 14. A threaded sleeve 15 is provided to match the thread on the push-pull rod 14. The threaded sleeve 15 passes through the hatch 8. The end of the push rod away from the connector 13 passes through the threaded sleeve 15 and is located outside the hatch 8. The center lines of the connector 13, the movable shaft 10 and the material spreading plate 2 are located in the same vertical plane. Rotating the push-pull rod 14 causes the push-pull rod 14 to move back and forth through the threaded sleeve 15, thereby driving the movable shaft 10 to move back and forth within the strip groove 9, which in turn achieves the back and forth movement of the material spreading plate 2, thus realizing the adjustment of the distance of the material spreading plate 2.

[0027] A lifting mechanism 7 is provided on one side of the push-pull rod 14 at the lower rear side of the spreading plate 2. The lifting mechanism 7 includes a lifting rod 71 and a lifting sleeve 72. The lifting sleeve 72 is fixedly installed at the bottom of the box 1 and passes through the bottom of the box 1. The lower section of the lifting rod 71 is threadedly engaged with the lifting sleeve 72 and extends out of the lifting sleeve 72 outside the box 1. The upper end of the lifting rod 71 abuts against the bottom rear side of the spreading plate 2. That is, when the lifting rod 71 rises, it can lift the rear part of the spreading plate 2 upward, thereby making the spreading plate 2 rotate around the movable shaft 10, thus realizing the adjustment of the tilt angle of the spreading plate 2.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any modifications and substitutions based on the technical solutions and utility model concepts provided by the present utility model should be covered within the protection scope of the present utility model.

Claims

1. An extendable and adjustable material spreading box, comprising a box body (1) and a spreading plate (2), wherein a material inlet (3) is provided at the top of the box body (1), a baffle plate (4) is provided in the middle of the box body (1), and a cleaning port (5) is provided on the side wall of the box body (1) near the baffle plate (4), support plates (6) are symmetrically installed on both sides of the bottom of the box body (1), the spreading plate (2) is located between the two support plates (6), a lifting mechanism (7) is provided below the rear side of the spreading plate (2), and an openable and closable hatch (8) is also provided on the rear side of the box body (1) corresponding to the spreading plate (2), characterized in that: The upper part of the two support plates (6) has a strip-shaped through groove (9) along the length of the support plate (6). A movable shaft (10) is provided between the two strip-shaped through grooves (9). The two ends of the movable shaft (10) are respectively placed in the two strip-shaped through grooves (9). The bottom front side of the spreading plate (2) is symmetrically formed with connecting ribs (11). The connecting ribs (11) have connecting holes that are rotatably fitted with the movable shaft (10). The spreading plate (2) is mounted on the movable shaft (10) through the connecting ribs (11). Limiting retaining rings (12) are provided on both sides of the movable shaft (10) near the support plate (6) and opposite to the connecting ribs (11). A connector (13) is fixedly fitted at the center of the movable shaft (10). A push-pull rod (14) is connected to the rear side of the connector (13). The push-pull rod (14) is threaded at a point away from the connector (13). A threaded sleeve (15) matching the thread on the push-pull rod (14) is fixedly installed on the hatch (8) at a point corresponding to the push-pull rod (14). The threaded sleeve (15) passes through the hatch (8). The end of the push-pull rod away from the connector (13) passes through the threaded sleeve (15) and is located outside the hatch (8). The center lines of the connector (13), the movable shaft (10), and the spreading plate (2) are located on the same vertical plane.

2. The extendable and adjustable feed box according to claim 1, characterized in that: The top center of the strip-shaped channel (9) has an outlet (16) for the movable shaft (10) to move up and take out.

3. An extendable and adjustable feed box according to claim 1 or 2, characterized in that: The connector (13) has a U-shaped connecting block (17) formed on the side away from the movable shaft (10). The bottom center of the connecting block (17) has a connecting notch (18), and the end of the push-pull rod (14) has an annular groove (19) that matches the connecting notch (18).

4. The extendable and adjustable material spreading box according to claim 1, characterized in that: The lifting mechanism (7) includes a lifting rod (71) and a lifting sleeve (72). The lifting sleeve (72) is fixedly installed at the bottom of the box (1) and extends through the bottom of the box (1). The lifting sleeve (72) is located on the side close to the movable shaft (10). The lower section of the lifting rod (71) is threadedly engaged with the lifting sleeve (72) and extends out of the lifting sleeve (72) outside the box (1). The upper end of the lifting rod (71) abuts against the bottom of the rear side of the spreading plate (2).

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