Movable air supply box

Abstract

The invention belongs to the technical field of sintering machine air supply, and particularly relates to a movable air supply box. The technology comprises two fixed ventilation walls which are arranged at intervals, a flexible sealing belt which annularly moves around the fixed ventilation walls is installed between the two fixed ventilation walls, the two fixed ventilation walls and the flexible sealing belt integrally form a closed air duct, and at least one fixed ventilation wall is provided with an air suction opening for supplying air to the air duct. And a plurality of movable air supply ports for independently supplying air to each sintering trolley are nested on the annular movable surface of the flexible sealing belt and are communicated with the air duct. According to the technical scheme, the purpose of movable air supply is achieved by means of the belt transmission principle, specifically, the flexible sealing belt drives the movable air supply opening to circularly bypass, the movable air supply opening and the air receiving opening in the trolley are overlapped and communicated, the movable air supply opening runs along with the trolley at the same speed in the same direction, and then air is supplied into the air channel through the air suction opening; therefore, air is supplied to the movable trolley.

Description

Technical Field

[0001] The invention belongs to the technical field of sintering machine air supply, and particularly relates to a movable air supply box. Background Art

[0002] The movable air sintering machine needs to supply air to each trolley separately. Due to the requirement of continuous production, the trolley is in a continuous running state. As a part of the trolley body, the trolley air box runs with the trolley. Therefore, the air supply port of the movable air sintering machine air box must also run in the same direction as the trolley at the same speed. The principle is as Figure 7 shown, and the traditional sintering machine air box does not have relevant functions. Summary of the Invention

[0003] According to the above deficiencies in the prior art, the technical problem to be solved by the present invention is: to provide a movable air supply box that can meet the air supply requirements of a movable air sintering machine.

[0004] The movable air supply box includes two fixed air walls arranged at intervals. A flexible sealing belt that moves in a ring around the fixed air walls is installed between the two fixed air walls. The two fixed air walls and the flexible sealing belt together form a closed air duct. An air extraction port for supplying air to the air duct is installed on at least one fixed air wall. A plurality of movable air supply ports for separately supplying air to each sintering trolley are nested on the annular moving surface of the flexible sealing belt, and the movable air supply ports communicate with the air duct.

[0005] Furthermore, it further includes a power mechanism for driving the flexible sealing belt to move around the fixed air wall.

[0006] Furthermore, the power mechanism adopts a chain drive method.

[0007] Furthermore, the specific method of the chain drive is:

[0008] Traction chains are laid on the outer sides of each fixed air wall; a driving sprocket is arranged at the head of the traction chain, a redirecting sprocket is arranged at the tail of the traction chain, and a support rail is arranged in the middle of the traction chain; a plurality of transverse movable support rods are arranged on the flexible sealing belt, and both ends of the movable support rods are connected to the chain links on the corresponding traction chains.

[0009] Furthermore, a sealing belt suspension ring is sleeved on the movable support rod, and the sealing belt suspension ring is connected to the flexible sealing belt.

[0010] Furthermore, a dynamic sealing component for movable sealing is installed at the mating part between the flexible sealing belt and each fixed air wall.

[0011] Furthermore, the dynamic sealing component includes a movable sealing ring and a fixed sealing ring that are both in an overall annular structure. The movable sealing ring is sealed and installed on the flexible sealing belt, and the fixed sealing ring is sealed and installed on the fixed air wall;

[0012] The cross section of the movable sealing ring is a "Z"-shaped structure, and the cross section of the fixed sealing ring is a groove structure with the opening facing upwards;

[0013] One end of the movable sealing ring is sealingly installed on the winding sealing belt, and the corresponding transverse section of the other end and the vertical section connecting the two transverse sections are both located in the groove body, wherein the vertical section is in sealing sliding cooperation with the groove wall on the inner side of the groove body, and the transverse section is in sealing sliding cooperation with the inner surface of the groove bottom of the groove body.

[0014] Furthermore, the winding sealing belt is divided into three layers from inside to outside, namely a lower bearing plate, a sealing filler and an upper bearing plate, and the lower bearing plate and the upper bearing plate are riveted together by riveting nails.

[0015] Furthermore, a dust baffle is installed in the air duct, and the dust baffle is installed in the air duct through a dust baffle bracket.

[0016] Furthermore, the two redirecting sprockets are connected together by a sprocket shaft, the sprocket shaft passes through the fixed wind wall, bearing seats and tensioning mechanisms are fixedly installed at both ends of the sprocket shaft, and a sprocket shaft seal for sealing is installed at the joint between the sprocket shaft and the fixed wind wall.

[0017] Furthermore, an air valve is installed at the movable air supply port.

[0018] Furthermore, an air supply box frame is provided in the air duct along the winding direction of the winding sealing belt, the air supply box frame and the winding sealing belt are movably connected, the air supply box frame is sealed to the fixed wind wall, and the dynamic sealing assembly is provided at the movable joint surface between the air supply box frame and the winding sealing belt.

[0019] Furthermore, the lower bearing plate is composed of three layers, namely a lower outer plate, a lower middle plate and a lower inner plate. The lower outer plate, the lower middle plate and the lower inner plate are respectively formed by rectangular heat-resistant steel plates of the same size specifications being spliced ​​in sequence along the short sides; the position of the splicing seam of two adjacent rectangular heat-resistant steel plates on the lower outer plate and the lower inner plate corresponds to the middle part of the lower middle plate.

[0020] Furthermore, the upper bearing plate is composed of three layers, namely an upper outer plate, an upper middle plate and an upper inner plate. The upper outer plate, the upper middle plate and the upper inner plate are respectively formed by rectangular heat-resistant steel plates of the same size specifications being spliced ​​in sequence along the short sides; the position of the splicing seam of two adjacent rectangular heat-resistant steel plates on the upper outer plate and the upper inner plate corresponds to the middle part of the upper middle plate.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] This technical solution borrows the principle of belt transmission to achieve the purpose of mobile air supply. Specifically, the flexible sealing belt will drive the mobile air supply port to make a circular detour. It is only necessary to ensure that the mobile air supply port is overlapped and connected with the air receiving port on the trolley and runs in the same direction and at a constant speed as the trolley, and then supply air to the air duct through the exhaust port (the so-called air supply is to generate wind inside the sintering machine. Whether it is exhaust or blast is just a different way of air supply. Some sintering machines in the prior art use exhaust, while others use blast.), thereby realizing air supply for the mobile trolley. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings illustrate exemplary embodiments of the present disclosure and together with the description serve to explain the principles of the present disclosure. These drawings are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this specification.

[0024] Figure 1 It is a schematic diagram of the structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the main structure of the mobile air supply box;

[0026] Figure 3 It is a schematic diagram of the cross-sectional structure of the air inlet and outlet of the mobile air supply box;

[0027] Figure 4 This is a schematic diagram of the cross-sectional structure of the center axis of the redirecting sprocket wheel of the mobile air supply box;

[0028] Figure 5 It is a schematic diagram of the structure of the winding sealing belt;

[0029] Figure 6 It is a schematic diagram of the matching structure of the winding sealing belt and the dynamic sealing component;

[0030] Figure 7 The figure is a working principle diagram of a mobile air sintering machine in the background technology.

[0031] Figure numerals: 1, flexible sealing belt 1.1, rivet nail 1.2, upper bearing plate 1.3, lower bearing plate 2, movable air supply port 3, dynamic sealing assembly 3.1, mounting ring 3.2, movable sealing ring 3.3, fixed sealing ring 4, exhaust port 5, fixed wind wall 6, driving sprocket 7, air supply box frame 8, air valve 9, traction chain 10, bearing seat and tensioning mechanism 11, redirecting sprocket 12, movable support rod 13, dust baffle 14, support rod seal 15, dust baffle bracket 16, support rail 17, sealing belt lifting ring 18, sprocket shaft 19, sprocket shaft seal 20, connecting flange. DETAILED DESCRIPTION

[0032] The present disclosure will be further described in detail below in conjunction with the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the relevant content and do not limit the present disclosure. Additionally, it should be noted that for ease of description, only parts related to the present disclosure are shown in the drawings.

[0033] It should be noted that, without conflict, the embodiments in the present disclosure and the features in the embodiments can be combined with each other. The present disclosure will be described in detail below with reference to the drawings and embodiments.

[0034] Embodiment

[0035] As Figure 1 shown, the mobile air supply box described in this embodiment includes two fixed air walls 5 arranged at intervals. A flexible sealing belt 1 that moves annularly around the fixed air walls 5 is installed between the two fixed air walls 5. The two fixed air walls 5 and the flexible sealing belt 1 together form a closed air duct. An air extraction port 4 for supplying air to the air duct is installed on at least one fixed air wall 5 (in this embodiment, air extraction ports 4 for supplying air to the air duct are installed on both fixed air walls 5, and the number of air extraction ports 4 is determined according to the specific length of the fixed air wall 5). A number of mobile air supply ports 2 for separately supplying air to each sintering trolley are nested on the annular moving surface of the flexible sealing belt 1. The mobile air supply ports 2 communicate with the air duct, and an air valve 8 is installed at the mobile air supply ports 2.

[0036] In this embodiment, the air valve 8 is selected as a coupled opening and closing air valve, which is used to automatically open the air supply when the sintering machine trolley needs air supply and automatically stop the air supply when it does not need air supply. In actual application, other existing known intelligent control air valves 8 can also be used.

[0037] As Figure 2 shown, a chain drive is used as the power mechanism for driving the flexible sealing belt 1 to move around the fixed air wall 5. In actual application, other existing drive methods such as gear or belt drive can also be used.

[0038] The specific manner of the chain drive is to lay a traction chain 9 on the outer side of each fixed air wall 5; a driving sprocket 6 (i.e., the driving wheel) is arranged at the head of the traction chain 9, a deflecting sprocket 11 (i.e., the driven wheel) is arranged at the tail of the traction chain 9, and a support rail 16 is arranged in the middle of the traction chain 9; As Figure 3As shown, a number of transverse moving support rods 12 are provided on the flexible sealing belt 1, and both ends of the moving support rods 12 are connected to the links on the corresponding traction chain 9; the moving support rods 12 are installed on the outer side of the flexible sealing belt 1 and can also pass through the flexible sealing belt 1 to ensure sealing. When some of the moving support rods 12 coincide with the moving air supply opening 2, the moving support rods 12 pass through the moving air supply opening 2, and a support rod seal 14 for sealing is installed at the passing position; a sealing belt sling 17 is sleeved on the moving support rods 12, and the sealing belt sling 17 is connected to the flexible sealing belt 1 by bolts. The flexible sealing belt 1 transfers the gravity and the negative pressure load in the air duct to the moving support rods 12 through the sealing belt sling 17.

[0039] When starting the drive, the driving force can be loaded onto the drive sprocket 6, or onto the redirecting sprocket 11, or can be loaded onto both the drive sprocket 6 and the redirecting sprocket 11 simultaneously to improve the driving ability.

[0040] In order to improve the sealing effect between the flexible sealing belt 1 and the fixed air wall 5, a dynamic sealing component 3 for moving sealing is installed at the mating position between the flexible sealing belt 1 and each fixed air wall 5. The dynamic sealing component 3 can adopt the sealing structure in the existing known technology, and technicians can refer to the dynamic sealing technology to complete it. The dynamic sealing component 3 adopted in this embodiment is the following technical solution:

[0041] As Figure 6 shown, the dynamic sealing component 3 includes a moving sealing ring 3.2 and a fixed sealing ring 3.3 that are both in an overall annular structure. The moving sealing ring 3.2 is sealed and installed on the flexible sealing belt 1, and the fixed sealing ring 3.3 is sealed and installed on the fixed air wall 5;

[0042] The cross-section of the moving sealing ring 3.2 is in a "Z" - shaped structure, and the cross-section of the fixed sealing ring 3.3 is a trough - shaped structure with an upward - opening;

[0043] One end of the moving sealing ring 3.2 is sealed and installed on the flexible sealing belt 1, and the other corresponding transverse section and the vertical section connecting the two transverse sections are both located inside the trough. Among them, the vertical section is in sealed sliding fit with the inner trough wall of the trough, and the transverse section is in sealed sliding fit with the inner surface of the trough bottom.

[0044] Through the design of the above - mentioned dynamic sealing component 3, its sealing effect is good, the structure is simple, and the manufacturing cost is relatively low.

[0045] In order to improve the service life of the flexible sealing belt 1, the structure of the flexible sealing belt 1 is further defined in this embodiment. In actual application, the flexible sealing belt 1 in the existing technology can also be adopted, such as a sealing belt woven with steel wires. The specific structure of the flexible sealing belt 1 in this embodiment is as follows:

[0046] As Figure 5As shown, the winding sealing belt 1 is divided into three layers from the inside to the outside, namely a lower bearing plate 1.3, a sealing filler and an upper bearing plate 1.2. The lower bearing plate 1.3 and the upper bearing plate 1.2 are riveted together by riveting nails 1.1;

[0047] In order to improve the heat resistance, the lower bearing plate 1.3 consists of three layers, namely, a lower outer plate, a lower middle plate and a lower inner plate. The lower outer plate, the lower middle plate and the lower inner plate are respectively formed by rectangular heat-resistant steel plates of the same size and specifications being spliced ​​in sequence along the short sides; the position of the splicing seam of two adjacent rectangular heat-resistant steel plates on the lower outer plate and the lower inner plate corresponds to the middle part of the lower middle plate; the upper bearing plate 1.2 consists of three layers, namely, an upper outer plate, an upper middle plate and an upper inner plate. The upper outer plate, the upper middle plate and the upper inner plate are respectively formed by rectangular heat-resistant steel plates of the same size and specifications being spliced ​​in sequence along the short sides; the position of the splicing seam of two adjacent rectangular heat-resistant steel plates on the upper outer plate and the upper inner plate corresponds to the middle part of the upper middle plate.

[0048] In order to facilitate the treatment of sintered ash, an ash baffle plate 13 is installed in the air duct, and the ash baffle plate 13 is installed in the air duct through an ash baffle plate bracket 15.

[0049] To facilitate installation, Figure 4 As shown, the two redirecting sprockets 11 are connected together by a sprocket shaft 18, the sprocket shaft 18 passes through the fixed wind wall 5, a bearing seat and a tensioning mechanism 10 are fixedly installed at both ends of the sprocket shaft 18, and a sprocket shaft seal 19 for sealing is installed at the matching position of the sprocket shaft 18 and the fixed wind wall 5. Similarly, the two driving sprockets 6 can also be connected by the sprocket shaft 18.

[0050] In order to facilitate the production and reasonably control the production cost, an air supply box skeleton 7 is arranged along the winding direction of the winding sealing belt 1 in the air duct (that is, the winding sealing belt 1 is laid around the upper, lower and front and rear sides of the air supply box skeleton 7), and the air supply box skeleton 7 and the winding sealing belt 1 are movably connected. The air supply box skeleton 7 is sealed with the fixed wind wall 5, and the dynamic sealing assembly 3 is arranged at the moving joint surface between the air supply box skeleton 7 and the winding sealing belt 1. Specifically, the movable sealing ring 3.2 is sealingly installed on the winding sealing belt 1, and the fixed sealing ring 3.3 is changed from the above-mentioned sealing installation on the fixed wind wall 5 to a sealing installation on the air supply box skeleton 7.

[0051] In order to facilitate the sealing installation of the mobile air supply port 2, Figure 5 As shown, the mobile air supply port 2 is sealed and installed with the flexible sealing belt 1 through the connecting flange 20. When manufacturing, it is only necessary to open an insertion groove in the flexible sealing belt 1 corresponding to the mobile air supply port 2, and then seal the connecting flange 20 on the mobile air supply port 2, and then seal the connecting flange 20 with the flexible sealing belt 1 through bolts.

[0052] In the working state, the air extraction port 4 is connected to the fan. When entering the working state, the fan is turned on, and air is taken from the air extraction port 4 through the fan pipeline. Since the air duct is an enclosed cavity, a negative pressure is formed in the air duct under the action of the fan. As Figure 1 and Figure 2 shown, the driving sprocket 6 drives the traction chain 9 to run from the head of the air duct to the tail of the air duct. The moving support rod 12 installed on the link of the traction chain 9 runs from the head of the air duct to the tail of the air duct together with the traction chain 9. Through the sealing belt suspension ring 17, the moving support rod 12 transmits the motion and force to the flexible sealing belt 1, and drives the flexible sealing belt 1 to run from the head of the air duct to the tail of the air duct at the same speed. The moving air supply port 2 installed on the flexible sealing belt 1 runs in the same way.

[0053] During the operation, the air valve 8 installed on the moving air supply port 2 can open and close automatically within the set section. When the air valve 8 enters the valve opening section (as Figure 1 shown or as Figure 2 above), the air valve 8 opens. Due to the negative pressure in the air duct, the external air passes through the material layer on the sintering machine trolley and enters the air duct through the moving air supply port 2 (when the moving air supply port 2 is connected to the trolley air supply port of the moving air sintering machine, air supply for the trolley can be realized). The traction chain 9 drives the flexible sealing belt 1 to continue running. When the air valve 8 moves out of the opening section, the air valve 8 closes, the moving air supply port 2 stops admitting air, and after being redirected by the redirecting sprocket 11, it runs back to the head of the air duct and enters the second air supply cycle.

[0054] In the description of this specification, the description with reference to terms such as "one embodiment / way", "some embodiments / ways", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment / way or example are included in at least one embodiment / way or example of this application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment / way or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments / ways or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments / ways or examples described in this specification and the features of different embodiments / ways or examples.

[0055] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" can explicitly or implicitly include at least one of the features. In the description of this application, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0056] Those skilled in the art should understand that the above embodiments are merely for clearly illustrating the present disclosure and are not intended to limit the scope of the present disclosure. For those skilled in the art, other changes or modifications can be made based on the above disclosure, and these changes or modifications are still within the scope of the present disclosure.

Claims

1. A mobile air supply box, comprising two fixed air walls (5) arranged at intervals, Characterized in that: A flexible sealing belt (1) that moves in a ring around the fixed air wall (5) is installed between the two fixed air walls (5). The two fixed air walls (5) and the flexible sealing belt (1) together form a closed air duct. An air extraction port (4) for supplying air to the air duct is installed on at least one fixed air wall (5). A number of mobile air supply ports (2) for individually supplying air to each sintering trolley are nested on the annular moving surface of the flexible sealing belt (1), and the mobile air supply ports (2) communicate with the air duct.

2. The mobile air supply box according to claim 1, Characterized in that: It further includes a power mechanism for driving the flexible sealing belt (1) to move around the fixed air wall (5).

3. The mobile air supply box according to claim 2, Characterized in that: The power mechanism adopts a chain drive method.

4. The mobile air supply box according to claim 3, Characterized in that: The specific method of the chain drive is: A traction chain (9) is laid on the outer side of each fixed air wall (5); a driving sprocket (6) is arranged at the head of the traction chain (9), a redirecting sprocket (11) is arranged at the tail of the traction chain (9), and a support rail (16) is arranged in the middle of the traction chain (9); a number of transverse moving support rods (12) are arranged on the flexible sealing belt (1), and both ends of the moving support rods (12) are connected to the chain links on the corresponding traction chain (9).

5. The mobile air supply box according to claim 4, Characterized in that: A sealing belt lifting ring (17) is sleeved on the moving support rod (12), and the sealing belt lifting ring (17) is connected to the flexible sealing belt (1).

6. The mobile air supply box according to claim 1 or 2, Characterized in that: A dynamic sealing component (3) for mobile sealing is installed at the mating part between the flexible sealing belt (1) and each fixed air wall (5).

7. The mobile air supply box according to claim 6, Characterized in that: The dynamic sealing component (3) includes a moving sealing ring (3.2) and a fixed sealing ring (3.3) that are both in an overall annular structure. The moving sealing ring (3.2) is sealed and installed on the flexible sealing belt (1), and the fixed sealing ring (3.3) is sealed and installed on the fixed air wall (5); The cross-section of the moving sealing ring (3.2) is in a "Z" shape structure, and the cross-section of the fixed sealing ring (3.3) is a trough structure with an upward opening; One end of the moving sealing ring (3.2) is sealed and installed on the flexible sealing belt (1), and the other corresponding transverse section and the vertical section connecting the two transverse sections are both located in the trough. Among them, the vertical section is in sealing sliding fit with the inner side wall of the trough, and the transverse section is in sealing sliding fit with the inner surface of the trough bottom.

8. The mobile air supply box according to claim 1 or 2, Characterized in that: The flexible sealing belt (1) is divided into three layers from the inside to the outside, namely a lower bearing plate (1.3), sealing filler, and an upper bearing plate (1.2). The lower bearing plate (1.3) and the upper bearing plate (1.2) are riveted together by riveting nails (1.1).

9. The mobile air supply box according to claim 1 or 2, Characterized in that: A dust baffle (13) is installed in the air duct, and the dust baffle (13) is installed in the air duct through a dust baffle bracket (15).

10. The mobile air supply box according to claim 4, characterized in that: Two redirecting sprockets (11) are connected together by a sprocket shaft (18). The sprocket shaft (18) passes through the fixed air wall (5). Bearing seats and a tensioning mechanism (10) are fixedly installed at both ends of the sprocket shaft (18). A sprocket shaft seal (19) for sealing is installed at the mating part of the sprocket shaft (18) and the fixed air wall (5).

11. The mobile air supply box according to claim 1 or 2, characterized in that: An air valve (8) is installed at the mobile air supply port (2).

12. The mobile air supply box according to claim 6, characterized in that: An air supply box skeleton (7) is arranged along the running direction of the flexible sealing belt (1) in the air duct. The air supply box skeleton (7) is movably connected to the flexible sealing belt (1). The air supply box skeleton (7) is hermetically connected to the fixed air wall (5). A dynamic sealing assembly (3) is arranged at the movable joint surface between the air supply box skeleton (7) and the flexible sealing belt (1).

13. The mobile air supply box according to claim 8, characterized in that: The lower bearing plate (1.3) has three layers, namely a lower outer plate, a lower middle plate and a lower inner plate. The lower outer plate, the lower middle plate and the lower inner plate are respectively formed by splicing rectangular heat-resistant steel plates with the same size specifications along the short sides in sequence; the splicing seam positions of two adjacent rectangular heat-resistant steel plates on the lower outer plate and the lower inner plate correspond to the middle part of the lower middle plate.

14. The mobile air supply box according to claim 8, characterized in that: The upper bearing plate (1.2) has three layers, namely an upper outer plate, an upper middle plate and an upper inner plate. The upper outer plate, the upper middle plate and the upper inner plate are respectively formed by splicing rectangular heat-resistant steel plates with the same size specifications along the short sides in sequence; the splicing seam positions of two adjacent rectangular heat-resistant steel plates on the upper outer plate and the upper inner plate correspond to the middle part of the upper middle plate.

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