Roller kiln discharging device and roller kiln

Abstract

The utility model belongs to the field of discharging of roller kilns, and particularly relates to a discharging device of a roller kiln and the roller kiln. The material guiding mechanism comprises a material guiding block arranged on the downstream side edge of the roller way conveying mechanism, the material guiding block is provided with a guiding side face, and the distance, close to the inner side wall of the kiln body, of the guiding side face is gradually increased from the upstream inlet end to the downstream outlet end; the material pulling mechanism comprises a driving rod, a material pulling block arranged at the end of the driving rod and a driving mechanism. The axial direction of the driving rod is parallel to the conveying direction of the roller way conveying mechanism, the driving rod is located between the downstream outlet end of the material guiding block and the inner side wall of the kiln body, and the driving rod rotates to drive the material pulling block to protrude out of the downstream outlet end of the material guiding block. Due to the combination of the material guiding mechanism and the material pulling mechanism, the discharging stability and the discharging efficiency are improved on the premise of reducing the occupation of the internal space of the kiln body as much as possible, and meanwhile, the structure is simple, the number of driving pieces is small, and the failure rate is low.

Description

Technical Field

[0001] The utility model belongs to the field of discharging of roller kilns, and particularly relates to a discharging device for a roller kiln and a roller kiln. Background Art

[0002] At present, the discharging of the track kiln generally adopts a rolling transportation scheme (i.e., using a stick to rotate to transport the material outside the furnace). Due to considering the self-weight and inertia of the material, the rotation speed of the stick cannot be too fast, resulting in a long discharging time. External gas is easily mixed into the furnace body, causing the sintering atmosphere of the material to be impure and the material sintering not to meet the performance requirements. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a discharging device for a roller kiln and a roller kiln with high discharging efficiency, stable discharging, and less occupation of the internal space of the kiln body.

[0004] The utility model provides a discharging device for a roller kiln, which comprises a material guiding mechanism and a material pulling mechanism;

[0005] The material guiding mechanism comprises a material guiding block arranged on the downstream side of the roller conveying mechanism. The material guiding block has a guiding side surface, and the distance from the upstream inlet end to the downstream outlet end of the guiding side surface close to the inner side wall of the kiln body gradually increases;

[0006] The material pulling mechanism comprises a driving rod, a material pulling block arranged at the end of the driving rod, and a driving mechanism for driving the driving rod to perform reciprocating linear movement and rotation along its axial direction;

[0007] The axial direction of the driving rod is parallel to the conveying direction of the roller conveying mechanism, and the driving rod is located between the downstream outlet end of the material guiding block and the inner side wall of the kiln body. When the driving rod rotates, the material pulling block can be driven to protrude from the downstream outlet end of the material guiding block.

[0008] Furthermore, the material guiding block also has a limiting side surface, the limiting side surface is parallel to the conveying direction of the roller conveying mechanism, and one side of the limiting side surface is aligned with the downstream outlet end.

[0009] Furthermore, guiding rollers are arranged on the guiding side surface and the limiting side surface, and the wheel surface of the guiding roller protrudes from the guiding side surface and the limiting side surface.

[0010] Furthermore, a set of the material guiding mechanism and the material pulling mechanism are arranged on each side of the roller conveying mechanism.

[0011] Furthermore, the distance between the downstream outlet ends of the material guiding blocks in the two sets of material guiding mechanisms is adapted to the width of the material.

[0012] Furthermore, the discharging device for the roller kiln further comprises a discharging platform, the discharging platform is arranged at the downstream outlet of the roller conveying mechanism, and the material pulling mechanism is used for pulling the material from the roller conveying mechanism to the discharging platform.

[0013] Furthermore, the driving mechanism includes a linear driving mechanism and a rotary driving mechanism arranged on the output slide plate of the linear driving mechanism, and the driving rod is arranged at the output end of the rotary driving mechanism.

[0014] Furthermore, a rotary support seat is also arranged on the output slide plate of the linear driving mechanism, and the driving rod is rotatably connected to the rotary support seat.

[0015] The utility model also provides a roller hearth kiln, which includes a kiln body, a roller conveyor mechanism arranged in the kiln body, a discharge outlet arranged downstream of the kiln body, and the above-mentioned roller hearth kiln discharge device;

[0016] A furnace door is arranged on the discharge outlet.

[0017] The beneficial effect of the utility model is that the roller hearth kiln discharge device provided by the utility model can adjust the position of the material before reaching the material pulling mechanism, which is convenient for the material pulling mechanism to quickly and accurately dock with the material for pulling, thereby improving the discharge efficiency and stability. Moreover, both the driving rod and the material pulling block are located downstream of the material guiding block during the non-material pulling stage, which will not interfere with the normal transportation of the material on the roller conveyor mechanism and will not occupy the normal load-bearing space of the roller conveyor mechanism. On the contrary, the material guiding block can prevent the material from hitting the driving rod and the material pulling block. And the material pulling mechanism can pull the material out of the roller conveyor mechanism at a transportation speed faster than that of the roller conveyor mechanism, thereby improving the discharge efficiency. The combination of the material guiding mechanism and the material pulling mechanism of the utility model improves the discharge stability and discharge efficiency on the premise of minimizing the occupation of the internal space of the kiln body as much as possible, and at the same time has a simple structure, a small number of driving parts, and a low failure rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Att Figure 1 is a schematic structural diagram of the roller hearth kiln in the utility model;

[0019] Att Figure 2 is the Figure 1 local enlarged view at A in the attached drawing;

[0020] Att Figure 3 is a front sectional view of the roller hearth kiln in the utility model;

[0021] Att Figure 4 is a schematic structural diagram of the material discharging process of the roller hearth kiln in the utility model when part of the kiln body is hidden;

[0022] Att Figure 5 is the Figure 4 local enlarged view at B in the attached drawing;

[0023] Att Figure 6 is the Figure 4 local enlarged view at C in the attached drawing;

[0024] Appendix Figure 7 is a schematic structural view when the material discharging is completed with a part of the kiln body of the roller hearth kiln of the present utility model hidden;

[0025] Appendix Figure 8 is a top view of the roller hearth kiln of the present utility model when a part of the kiln body is hidden;

[0026] Appendix Figure 9 is the appendix Figure 8 a partial enlarged view of the D position in

[0027] In the figure, 1 - material guiding mechanism; 11 - material guiding block; 111 - guiding side surface; 112 - upstream inlet end; 113 - downstream outlet end; 114 - limiting side surface; 115 - guiding roller; 12 - mounting rack; 2 - material pulling mechanism; 21 - driving rod; 22 - material pulling block; 23 - driving mechanism; 231 - linear driving mechanism; 232 - rotary driving mechanism; 233 - rotary support seat; 3 - discharging platform; 4 - kiln body; 41 - discharging outlet; 5 - roller conveying mechanism; 6 - furnace door; 7 - material; 71 - fitting groove. Specific embodiments

[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0029] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0030] In the present utility model, unless otherwise clearly defined and limited, terms such as "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection, a physical connection or a wireless communication connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0031] In addition, the technical solutions between various embodiments of the present utility model can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or is unable to be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0032] As shown in the appended Figure 1 - appended Figure 9 figures, the present utility model provides a discharging device for a roller hearth kiln, which includes a material guiding mechanism 1 and a material pulling mechanism 2. The material guiding mechanism 1 is arranged inside the kiln body 4 and on the side of the roller conveying mechanism 5, and is used to adjust the position of the material 7 at the downstream end of the roller conveying mechanism 5, so as to facilitate the docking of the material pulling mechanism 2 with the material 7; the material pulling mechanism 2 is used to discharge the material 7 whose position has been adjusted at the downstream end of the roller conveying mechanism 5.

[0033] Referring to the appended Figure 4 - appended Figure 9 figures, the material guiding mechanism 1 includes a material guiding block 11 arranged on the downstream side of the roller conveying mechanism 5. The material guiding block 11 has a guiding side surface 111, which is perpendicular to the conveying plane of the roller conveying mechanism 5. The distance from the upstream inlet end 112 to the inner side wall of the kiln body 4 of the guiding side surface 111 gradually increases from the upstream inlet end 112 to the downstream outlet end 113, that is, the guiding side surface 111 is inclined. The distance from the upstream inlet end 112 to the other side wall of the kiln body 4 is large, and the distance from the downstream outlet end 113 to the other side wall of the kiln body 4 is small. Thus, both sides of the roller conveying mechanism 5 are of a tapered structure, and then the position of the material 7 passing through the material guiding mechanism 1 can be adjusted to make the material 7 in a set position. It should be noted that in the embodiment where two groups of the material guiding mechanism 1 are symmetrically arranged, the distance between the two upstream inlet ends 112 is large, and the distance between the two downstream outlet ends 113 is small, also presenting a tapered structure. At this time, after the material 7 passes through the material guiding mechanism 1 for position adjustment, the material 7 is in the middle position of the roller conveying mechanism 5, and there is a certain distance between both sides of the material 7 and the inner side wall of the kiln body 4.

[0034] The material pulling mechanism 2 includes a driving rod 21, a material pulling block 22 arranged at the end of the driving rod 21, and a driving mechanism 23 for driving the driving rod 21 to perform reciprocating linear movement and rotation along its axis. When the driving mechanism 23 drives the driving rod 21 to perform linear movement, it is used to drive the material pulling block 22 to move in the conveying direction of the roller conveying mechanism 5, so as to perform material pulling or material pulling preparation work; when the driving mechanism 23 drives the driving rod 21 to rotate, the material pulling block 22 will rotate, so as to dock with and separate from the material 7.

[0035] The driving rod 21 is axially parallel to the conveying direction of the roller conveyor mechanism 5, and the driving rod 21 is located between the downstream outlet end 113 of the material guiding block 11 and the inner wall of the kiln body 4, that is, the driving rod 21 is close to the inner wall of the kiln body 4, and the driving rod 21 does not protrude beyond the downstream outlet end 113. At this time, after the position of the material 7 is adjusted by the material guiding mechanism 1, during the continuous conveying of the material 7 on the roller conveyor mechanism 5, the material 7 will not contact the driving rod 21, avoiding the driving rod 21 from interfering with the conveying of the material 7 and occupying the loading space of the roller kiln. When the driving rod 21 rotates, it can drive the material pulling block 22 to protrude beyond the downstream outlet end 113 of the material guiding block 11, that is, in the non-material pulling stage, the material pulling block 22 does not protrude beyond the downstream outlet end 113. At this time, after the position of the material 7 is adjusted at the downstream outlet end 113, the material 7 can continue to be conveyed on the roller conveyor mechanism 5 without any interference. And after the position of the material 7 is adjusted by passing through the material guiding block 11, by rotating the material pulling block 22 to protrude beyond the downstream outlet end 113 of the material guiding block 11, the material pulling block 22 can be docked with the downstream end of the material 7, and then be docked with the material 7 to pull the material 7 out of the roller conveyor mechanism 5. Preferably, the material 7 includes a cassette body and the material to be sintered arranged in the cassette body, and a bearing plate is arranged at the bottom of the cassette body, and a fitting groove 71 for cooperating with the material pulling block 22 is arranged on the side wall of the bearing plate. This improves the docking stability between the material pulling block 22 and the material 7.

[0036] The roller kiln discharging device provided by the present utility model can adjust the position of the material 7 before it reaches the material pulling mechanism 2, facilitating the quick and accurate docking of the material pulling mechanism 2 with the material 7 for material pulling, thereby improving the discharging efficiency and stability. Moreover, the driving rod 21 and the material pulling block 22 are both in the downstream position of the material guiding block 11 in the non-material pulling stage, and will not interfere with the normal conveying of the material 7 on the roller conveyor mechanism 5, nor will they occupy the normal loading space of the roller conveyor mechanism 5. On the contrary, the material guiding block 11 can prevent the material 7 from hitting the driving rod 21 and the material pulling block 22. And the material pulling mechanism 2 can pull the material 7 out of the roller conveyor mechanism 5 at a transportation speed faster than that of the roller conveyor mechanism 5, thereby improving the discharging efficiency. The combination of the material guiding mechanism 1 and the material pulling mechanism 2 of the present utility model improves the discharging stability and discharging efficiency on the premise of minimizing the occupation of the internal space of the kiln body 4 as much as possible, and at the same time has a simple structure, a small number of driving parts, and a low failure rate.

[0037] In one embodiment, the material guiding block 11 further has a limiting side surface 114, the limiting side surface 114 is parallel to the conveying direction of the roller conveyor mechanism 5, and one side of the limiting side surface 114 is aligned with the downstream outlet end 113, that is, the limiting side surface 114 extends parallel downstream of the downstream outlet end 113, thereby improving the guiding effect on the material 7, enabling the material 7 to move parallel along the limiting side surface 114 for a certain time after moving to the downstream outlet end 113, keeping the position of the material 7 stable, and improving the position adjustment accuracy of the material 7.

[0038] In one embodiment, guiding rollers 115 are provided on the guiding side surface 111 and the limiting side surface 114. The roller surfaces of the guiding rollers 115 protrude from the guiding side surface 111 and the limiting side surface 114. In this embodiment, the working surfaces of the guiding side surface 111 and the limiting side surface 114 are replaced by the roller surfaces of the guiding rollers 115. At this time, the contact between the material 7 and the material guiding block 11 is changed from sliding surface friction or sliding line friction to rolling friction, thereby avoiding abrasion of the material 7, reducing the influence on the material 7, and at the same time increasing the service life of the material guiding block 11. Preferably, the guiding rollers 115 are fixed to the material guiding block 11 through L-shaped mounting brackets 12.

[0039] In one embodiment, a set of the material guiding mechanism 1 and the material pulling mechanism 2 are provided on each side of the roller conveyor mechanism 5. In this embodiment, the left and right sides of the material 7 will be adjusted in position through the material guiding mechanism 1, so that the material 7 is located in the middle of the roller conveyor mechanism 5. Subsequently, through the two material pulling mechanisms 2, the two ends of the material 7 are driven simultaneously to pull the material, improving the stability of the material pulling and avoiding deflection and displacement of the material 7 during the material pulling process.

[0040] In one embodiment, the distance between the downstream outlet ends 113 of the material guiding blocks 11 in the two sets of material guiding mechanisms 1 is adapted to the width of the material 7, that is, the distance between the two downstream outlet ends 113 is slightly wider than the width of the material 7, for example, 3-5 cm wider, improving the position adjustment accuracy of the material 7.

[0041] In one embodiment, the discharging device of this roller hearth kiln further includes a discharging platform 3. Preferably, the discharging platform 3 is made of graphite material. The discharging platform 3 is arranged at the downstream outlet of the roller conveyor mechanism 5. The material pulling mechanism 2 is used to pull the material 7 from the roller conveyor mechanism 5 into the discharging platform 3. Preferably, the discharging platform 3 is arranged outside the discharging outlet 41 of the kiln body 4, so that the material 7 can be unloaded from the kiln body 4. The discharging platform 3 is used for transfer, rotating the material 7 leaving the roller conveyor mechanism 5 to the next working station. By using the discharging platform 3 for transfer, the material 7 and the discharging platform 3 are in surface contact sliding, which can avoid the problem of inertial sliding of the material 7 caused by the fast moving speed and heavy weight of the material 7, and improve the stability of the material 7 during discharging. In other embodiments, the discharging platform 3 can also be replaced by a non-powered roller.

[0042] In one embodiment, the driving mechanism 23 includes a linear driving mechanism 231 and a rotary driving mechanism 232 disposed on the output slide plate of the linear driving mechanism 231. The driving rod 21 is disposed at the output end of the rotary driving mechanism 232. That is, the linear driving mechanism 231 is used to drive the rotary driving mechanism 232 and the driving rod 21 to perform linear movement, while the rotary driving mechanism 232 is used to drive the driving rod 21 to rotate. Among them, the linear driving mechanism 231 preferably adopts a linear module, and the rotary driving mechanism 232 preferably adopts a rotary cylinder.

[0043] In one embodiment, a rotary support seat 233 is further disposed on the output slide plate of the linear driving mechanism 231. The driving rod 21 is rotatably connected to the rotary support seat 233, thereby improving the structural stability of the driving rod 21.

[0044] The working process of the above-mentioned discharging device of the roller hearth kiln of the present utility model is briefly introduced as follows:

[0045] S1. The material 7 is conveyed on the roller conveying mechanism 5, and the material 7 can be fired or cooled during the conveying process. That is, when the kiln body 4 is a heating furnace, the material 7 is conveyed and fired on the roller conveying mechanism 5, and when the kiln body 4 is a cooling furnace, the material 7 is conveyed and cooled on the roller conveying mechanism 5;

[0046] S2. When the material 7 passes through the guiding block 11, the side surface of the material 7 contacts the guiding side surface 111. Under the continuous conveying of the roller conveying mechanism 5, the side surface of the material 7 laterally moves to the downstream outlet end 113, adjusting the position of the material 7 in the width direction of the roller conveying mechanism 5. At this time, the distance between the side surface of the material 7 and the inner wall of the kiln body 4 is the same as the distance between the downstream outlet end 113 and the inner wall of the kiln body 4;

[0047] S3. The driving mechanism 23 drives the driving rod 21 to enter the downstream of the roller conveying mechanism 5. After the material 7 leaves the guiding block 11, the driving mechanism 23 drives the driving rod 21 to rotate, and the material pulling block 22 rotates and protrudes from the downstream outlet end 113 of the guiding block 11;

[0048] S4. The driving mechanism 23 drives the driving rod 21 to reset, and the material pulling block 22 abuts against the downstream end of the material 7 and pushes the material 7 to discharge. In a preferred embodiment, the driving mechanism 23 drives the driving rod 21 to reset at a speed faster than the conveying speed of the roller conveying mechanism 5, pushing the material 7 to discharge quickly and improving the conveying efficiency. In this embodiment, the roller located downstream of the guiding block 11 is connected with a one-way overrunning mechanism, so that this part of the roller can rotate at a speed faster than the driving speed, avoiding friction between the material 7 and the roller during the rapid discharging process.

[0049] The present utility model further provides a roller hearth kiln, which comprises a kiln body 4, a roller conveyor mechanism 5 arranged inside the kiln body 4, a discharge outlet 41 arranged downstream of the kiln body 4, and the above-mentioned roller hearth kiln discharge device;

[0050] A furnace door 6 is arranged on the discharge outlet 41. Before the material 7 is discharged from the roller hearth kiln, the kiln body 4 can be sealed by the furnace door 6, which can avoid the loss of the temperature inside the kiln body 4 and prevent external air from entering the kiln body 4. During the discharging stage, the furnace door 6 is opened for discharging. At this time, since the roller hearth kiln discharge device can quickly discharge the material 7, excessive temperature loss inside the kiln body 4 can be avoided, and excessive external air entering the kiln body 4 can also be avoided.

[0051] As described above, this is only an embodiment and does not impose any limitation on the present utility model. Any person skilled in the art can, without departing from the scope of the technical solution of the present utility model, make many possible changes, modifications or equivalents to the technical solution of the present utility model by using the disclosed technical content. Therefore, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present utility model without departing from the content of the technical solution of the present utility model shall fall within the scope of protection of the technical solution of the present utility model.

Claims

1. A roller kiln discharging device, characterized in that: It comprises a material guiding mechanism (1) and a material pulling mechanism (2); The material guiding mechanism (1) comprises a material guiding block (11) arranged on the downstream side of the roller conveying mechanism (5), the material guiding block (11) having a guiding side surface (111), the distance of the guiding side surface (111) from the upstream inlet end (112) to the downstream outlet end (113) close to the inner side wall of the kiln body (4) gradually increases; The material pulling mechanism (2) comprises a driving rod (21), a material pulling block (22) arranged at the end of the driving rod (21), and a driving mechanism (23) for driving the driving rod (21) to reciprocate linearly and rotate along its axial direction; The driving rod (21) is axially parallel to the conveying direction of the roller conveyor mechanism (5), and the driving rod (21) is located between the downstream outlet end (113) of the guide block (11) and the inner wall of the kiln body (4). The driving rod (21) rotates to drive the pulling block (22) to protrude from the downstream outlet end (113) of the guide block (11).

2. The roller kiln discharging device according to claim 1, characterized in that: The guide block (11) also has a limiting side surface (114), the limiting side surface (114) is parallel to the conveying direction of the roller conveying mechanism (5), and one side of the limiting side surface (114) is aligned with the downstream outlet end (113).

3. The roller kiln discharging device according to claim 2, characterized in that: Guide rollers (115) are provided on the guide side surface (111) and the limiting side surface (114), and the wheel surfaces of the guide rollers (115) protrude from the guide side surface (111) and the limiting side surface (114).

4. The roller kiln discharging device according to any one of claims 1 to 3, characterized in that: The material guiding mechanism (1) and the material pulling mechanism (2) are each provided in a group on both sides of the roller conveying mechanism (5).

5. The roller kiln discharging device according to claim 4, characterized in that: The distance between the downstream outlet ends (113) of the material guiding blocks (11) in the two groups of the material guiding mechanisms (1) is adapted to the width of the material (7).

6. The roller kiln discharging device according to any one of claims 1 to 3, characterized in that: It also comprises a discharging platform (3), which is arranged at the downstream outlet of the roller conveying mechanism (5), and the pulling mechanism (2) is used to pull the material (7) from the roller conveying mechanism (5) to the discharging platform (3).

7. The roller kiln discharging device according to any one of claims 1 to 3, characterized in that: The driving mechanism (23) comprises a linear driving mechanism (231) and a rotary driving mechanism (232) arranged on an output slide plate of the linear driving mechanism (231), and the driving rod (21) is arranged on an output end of the rotary driving mechanism (232).

8. The roller kiln discharging device according to claim 7, characterized in that: A rotating support seat (233) is also provided on the output slide plate of the linear drive mechanism (231), and the driving rod (21) is rotatably connected to the rotating support seat (233).

9. A roller kiln, characterized in that: It comprises a kiln body (4), a roller conveying mechanism (5) arranged in the kiln body (4), a material discharge outlet (41) arranged downstream of the kiln body (4), and a roller kiln discharge device according to any one of claims 1 to 8; The material discharge outlet (41) is provided with a furnace door (6).

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