Transition device for atmosphere roller kiln and atmosphere roller kiln thereof

Abstract

The utility model belongs to the field of atmosphere roller kilns, and particularly relates to a transition device for an atmosphere roller kiln and the atmosphere roller kiln comprising a transition bin, a connecting bin, a push / pull mechanism and a transition bin door. The transition bin is communicated with the connecting bin, and the transition bin door is arranged at the communication position of the transition bin and the connecting bin. The push / pull mechanism comprises a linear driving piece arranged outside the transition bin and a push / pull rod, the push / pull rod is arranged on the side wall of the transition bin in a sliding mode and penetrates into the transition bin, and the push / pull rod and the transition bin door are oppositely arranged; a material inlet is further formed in the transition bin. By arranging the transition bin and the connecting bin, materials needing to be fed into or discharged out of the heating furnace are subjected to transition connection, continuous feeding or discharging of the heating furnace is achieved, heat loss in the heating furnace can be avoided, the situation that the interior of the transition bin is affected by the high temperature of the heating furnace is avoided, and the service life of the push / pull mechanism is prolonged; and meanwhile, the saggar can be prevented from carrying air into the heating furnace.

Description

Technical Field

[0001] The utility model belongs to the field of atmosphere roller kilns, and in particular relates to a transition device used for an atmosphere roller kiln and the atmosphere roller kiln. Background Art

[0002] Roller kiln is a widely used ceramic sintering equipment, which can be used to produce daily-use porcelain, sanitary porcelain, bricks and tiles, electrode materials and other products. Taking the atmosphere protection roller kiln as an example, its basic working principle is: use the motor to drive the multi-row roller rods to rotate, and continuously send the powder material in the graphite sagger into the closed furnace body of tens of meters, and after high-temperature sintering at about 800-1000℃, it will be taken out of the furnace and enter the next process. The roller kiln has the advantages of uniform temperature, short firing cycle and stable operation.

[0003] The traditional atmosphere roller kiln has a transition bin at both ends of the furnace body to remove air and introduce protective atmosphere. Usually, several saggers filled with powder materials are arranged in a row and driven by rollers to enter the transition bin, resulting in a transition bin door width of more than 2 meters, which is difficult to process and difficult to ensure sealing performance. In addition, the use of roller drive will cause inertial slip due to the excessive weight of the material, making it difficult to control the precise position of the material, which greatly limits the speed of material loading and unloading, resulting in the transition bin door being opened for too long, which in turn leads to large heat loss and energy waste. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a transition device for an atmosphere roller kiln which has a simple structure and can reduce the size of a material inlet of a transition bin and the atmosphere roller kiln.

[0005] The utility model provides a transition device for an atmosphere roller kiln, comprising a transition bin, a connecting bin, a push / pull mechanism and a transition bin door;

[0006] The transition chamber is connected to the connecting chamber, and a transition chamber door is arranged at the connecting position of the transition chamber and the connecting chamber, and is used to separate and connect the transition chamber and the connecting chamber;

[0007] The push / pull mechanism includes a linear drive member arranged outside the transition bin and a push / pull rod arranged on the output end of the linear drive member, the push / pull rod is slidably arranged on the side wall of the transition bin and penetrates into the transition bin, and the push / pull rod is arranged opposite to the transition bin door;

[0008] The transition bin is also provided with a material inlet for conveying the material from the material inlet to the transition bin.

[0009] Furthermore, the push / pull rod is in sliding sealing cooperation with the transition bin.

[0010] Furthermore, a through hole is provided on the side wall of the transition bin, the size of the through hole is larger than the size of the push / pull rod, and a sealing member is provided outside the through hole;

[0011] The sealing member comprises a fixed flange arranged on the side wall of the transition bin and located outside the through hole, a movable flange fixed to the fixed flange on the side away from the side wall of the transition bin by a fastener, and a sleeve arranged on the movable flange on the side away from the fixed flange by a fastener;

[0012] The fixed flange, the movable flange and the sleeve are all provided with openings for the push / pull rod to pass through, and the size of the opening and the through hole on the fixed flange is larger than the size of the opening on the movable flange and the sleeve;

[0013] The sleeve is in sliding sealing cooperation with the push / pull rod.

[0014] Furthermore, a sealing ring is arranged between the fixed flange and the movable flange.

[0015] Furthermore, a push / pull block is provided at the end of the push / pull rod located in the transition bin, and the size of the opening and through hole on the fixed flange is larger than the size of the push / pull block.

[0016] Furthermore, a graphite bearing plate is arranged in the transition bin, and the material moves in the transition bin through the graphite bearing plate.

[0017] Furthermore, a graphite roller is provided at the bottom of the push / pull block and is in rolling cooperation with the graphite bearing plate.

[0018] Furthermore, the material inlet direction of the transition bin is perpendicular to the line connecting the push / pull rod and the transition bin door.

[0019] Furthermore, the linear drive component is a linear module, a support seat is arranged on the output end of the linear module, and the push / pull rod is fixedly arranged on the support seat.

[0020] The utility model also provides an atmosphere roller kiln, comprising a heating furnace, a loading and unloading device and the above-mentioned transition device for the atmosphere roller kiln;

[0021] The loading and unloading device is used to load and unload materials into the transition bin through the material inlet;

[0022] The heating furnace is connected to the other end of the connecting chamber, and a chamber door is arranged between the connecting chamber and the heating furnace.

[0023] The beneficial effect of the utility model is that the utility model provides a transition bin and a connecting bin to transition and connect the materials that need to be sent into or out of the heating furnace, thereby realizing continuous feeding or discharging of the heating furnace, and avoiding heat loss in the heating furnace, avoiding the high temperature of the heating furnace from affecting the transition bin, and improving the service life of the push / pull mechanism. At the same time, it can avoid the sagger carrying air into the heating furnace, which affects the carbonization effect of the heating furnace on the materials. The materials are pushed into or pulled out of the connecting bin from the transition bin by a push / pull rod, and the materials are entered or exited from the material entrance of the transition bin, so that the turning movement of the materials can be realized, and the atmosphere roller kiln is no longer arranged in a full straight line, and the plant space can be reasonably laid out. Compared with the conveying method of the transmission conveyor roller, the push / pull rod method is simpler, and the linear drive component used for driving is located outside the transition bin, away from the high temperature environment, and the failure rate is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Attached Figure 1 It is the front view of the utility model;

[0025] Attached Figure 2 It is a front cross-sectional view of the utility model;

[0026] Attached Figure 3 It is a top view of the utility model.

[0027] In the figure, 1-transition chamber; 11-through hole; 12-seal; 121-fixed flange; 122-movable flange; 123-fastener; 124-sleeve; 125-seal ring; 13-graphite bearing plate; 2-connection chamber; 3-push / pull mechanism; 31-linear drive member; 311-support seat; 32-push / pull rod; 33-push / pull block; 34-graphite roller; 4-transition chamber door; 41-drive member; 42-insulated door. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0030] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, a physical connection, or a wireless communication connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0032] As attached Figure 1 -Attached Figure 3 As shown, the utility model provides a transition device for an atmosphere roller kiln, the purpose of which is to transfer materials from a feeding section to a heating furnace, or to rotate from a heating furnace to a discharging section. It includes a transition bin 1, a connecting bin 2, a push / pull mechanism 3 and a transition bin door 4;

[0033] The transition bin 1 is connected to the connecting bin 2, and the transition bin door 4 is arranged at the connection point between the transition bin 1 and the connecting bin 2, which is used to separate and connect the transition bin 1 and the connecting bin 2, wherein the connecting bin 2 is used to connect to the heating section of the track kiln, and the transition bin 1 is used to connect to the feed end or the discharge end of the track kiln.

[0034] The push / pull mechanism 3 includes a linear drive member 31 arranged outside the transition bin 1 and a push / pull rod 32 arranged on the output end of the linear drive member 31. The push / pull mechanism 3 is used to push the material from the transition bin 1 into the connecting bin 2, or to pull the material from the connecting bin 2 into the transition bin 1. It can be used as a pushing mechanism or a pulling mechanism. The push / pull rod 32 is slidably arranged on the side wall of the transition bin 1 and penetrates into the transition bin 1, and is used to push the material in the transition bin 1 into the connecting bin 2. The push / pull rod 32 is arranged opposite to the transition bin door 4, so that the pushing direction of the push / pull rod 32 is to drive the material into the connecting bin 2, or the pulling direction of the push / pull rod 32 is to pull the material in the connecting bin 2 into the transition bin 1.

[0035] The transition bin 1 is also provided with a material inlet, which is used to transport the material from the material inlet to the transition bin 1, and to transport the material to the position in the bin located at the connection line between the push / pull rod 32 and the transition bin door 4, within the pushing stroke of the push / pull rod 32, or to unload the material in the transition bin 1 from the material inlet;

[0036] The utility model provides a transition bin 1 and a connecting bin 2 to transition and connect the materials that need to be sent into or out of the heating furnace, thereby realizing continuous feeding or discharging of the heating furnace, avoiding heat loss in the heating furnace, avoiding the high temperature of the heating furnace from affecting the transition bin 1, and improving the service life of the push / pull mechanism 3. At the same time, it can avoid the sagger carrying air into the heating furnace, which affects the carbonization effect of the heating furnace on the materials. The materials are pushed into or pulled out of the connecting bin 2 from the transition bin 1 by means of a push / pull rod 32, and the materials are entered or exited from the material entrance of the transition bin 1, so that the turning movement of the materials can be realized, and the atmosphere roller kiln is no longer arranged in a straight line, and the plant space can be reasonably laid out. Compared with the conveying method of the transmission conveying roller, the method of the push / pull rod 32 is simpler, and the linear drive member 31 used for driving is located outside the transition bin 1, away from the high temperature environment, and the failure rate is small.

[0037] In one of the embodiments, the push / pull rod 32 cooperates with the transition chamber 1 in a sliding seal, thereby ensuring the sealing performance of the transition chamber 1 and preventing the high temperature in the transition chamber 1 from leaking from the through hole 11 to cause a safety hazard.

[0038] In one embodiment, a through hole 11 is provided on the side wall of the transition chamber 1. The size of the through hole 11 is larger than the size of the push / pull rod 32 so that the push / pull rod 32 can be inserted into the through hole 11. A sealing member 12 is provided outside the through hole 11.

[0039] The sealing member 12 comprises a fixed flange 121 arranged on the side wall of the transition chamber 1 and located outside the through hole 11, a movable flange 122 fixed to the fixed flange 121 on the side away from the side wall of the transition chamber 1 through a fastener 123, and a sleeve 124 arranged on the side of the movable flange 122 away from the fixed flange 121 through the fastener 123;

[0040] The fixed flange 121, the movable flange 122 and the sleeve 124 are all provided with openings for the push / pull rod 32 to pass through, so as to allow the push / pull rod 32 to pass through, and the size of the opening on the fixed flange 121 and the through hole 11 is larger than the size of the opening on the movable flange 122 and the sleeve 124. In this embodiment, when installing the push / pull rod 32, it is only necessary to fix the sleeve 124 and the movable flange 121 on the push / pull rod 32, and then fix the movable flange 121 on the fixed flange 121, so as to facilitate the assembly and disassembly of the push / pull rod 32 and the seal 12, and further facilitate the maintenance of the push / pull rod 32. In addition, with such a configuration, the assembly of the push / pull rod 32 can be completed without opening threaded holes on the warehouse wall of the transition warehouse 1, which can ensure the structural strength of the transition warehouse 1;

[0041] The sleeve 124 is in sliding and sealing engagement with the push / pull rod 32 .

[0042] In one embodiment, a sealing ring 125 is disposed between the fixed flange 121 and the movable flange 122 to improve the sealing performance of the fixed flange 121 and the movable flange 122 .

[0043] In one of the embodiments, a push / pull block 33 is provided at the end of the push / pull rod 32 located in the transition bin 1 to increase the contact area with the sagger, thereby improving the pushing / pulling effect. During specific use, the push / pull block 33 can be detachably connected to the material. For example, a rotary drive mechanism can be provided at the output end of the linear drive member 31, and the push / pull rod 32 is rotatably provided at the output end of the linear drive member 31, and the push / pull rod 32 and the side wall of the transition bin 1 are rotationally and slidably matched. In this way, the push / pull rod 32 can be driven to rotate by the rotary drive mechanism, thereby connecting the push / pull block 33 to the material, thereby achieving pulling of the material. The size of the opening and the through hole 11 on the fixed flange 121 is larger than the size of the push / pull block 33, and thus, after the push / pull block 33 is installed outside the transition bin 1, it can be installed into the transition bin 1 through the through hole 11.

[0044] In one of the embodiments, a graphite supporting plate 13 is provided in the transition bin 1, and the material moves in the transition bin 1 through the graphite supporting plate 13. The graphite supporting plate 13 is used as a material support plate, which has good mechanical strength, wear resistance and high temperature resistance. In this embodiment, the material is supported on the graphite supporting plate 13 by friction and sliding, thereby avoiding the problem of inertial slip caused by the heavy weight of the material. Therefore, the pushing and pulling speed of the material can be increased without generating inertial slip, thereby improving the feeding and discharging efficiency of the material.

[0045] In one embodiment, a graphite roller 34 that rolls with the graphite bearing plate 13 is disposed at the bottom of the push / pull block 33 , so as to prevent the push / pull block 33 from wearing the graphite bearing plate 13 .

[0046] In one of the embodiments, the material inlet direction of the transition bin 1 is perpendicular to the line connecting the push / pull rod 32 and the transition bin door 4, that is, the conveying channel in the transition bin 1 and the conveying channel in the connecting bin 2 are perpendicular to each other, and the moving direction of the push / pull rod 32 is consistent with the conveying channel direction of the connecting bin 2. Preferably, the transition bin 1 is a rectangular structure. In this case, the push / pull rod 32 and the connecting bin 2 are respectively arranged on the opposite side walls of the rectangular body with a larger area, and the material inlet is arranged on a side wall of the rectangular body with a smaller area.

[0047] Among them, the linear drive component 31 can adopt a cylinder, an oil cylinder, an electric cylinder, and a rotary drive mechanism with a gear rack or chain mechanism and other drive components. In one preferred embodiment, the linear drive component 31 is a linear module, and a support seat 311 is provided on the output end of the linear module. The push / pull rod 32 is fixedly set on the support seat 311. With this arrangement, the movement amount of the push / pull rod 32 can be accurately controlled, thereby ensuring the pushing accuracy.

[0048] In one of the embodiments, the transition chamber door 4 includes a driving component 41 and an insulating door 42. The driving component 41 is fixed to the outer wall of the connecting chamber 2 and is used to drive the insulating door 42 to block or open the connection between the transition chamber 1 and the connecting chamber 2. The insulating door 42 is installed with insulating material to prevent the high-temperature gas in the connecting chamber 2 from entering the transition chamber 1 and damaging related components.

[0049] The utility model also provides an atmosphere roller kiln, comprising a heating furnace, a loading and unloading device and the above-mentioned transition device for the atmosphere roller kiln;

[0050] The loading and unloading device is used to load and unload materials into the transition bin through the material inlet.

[0051] The heating furnace is connected to the other end of the connecting chamber 2, and a chamber door is provided between the connecting chamber 2 and the heating furnace.

[0052] In specific use, the steps of conveying materials to the heating furnace include:

[0053] S11, arranging the saggers filled with powder in a row through the transmission system and moving them into the transition bin 1 through the material inlet, which can greatly reduce the size of the material inlet compared to the conventional method of horizontally conveying multiple saggers into the transition bin 1;

[0054] S12, then open the transition chamber door 4 to connect the transition chamber 1 and the connection chamber 2 to each other;

[0055] S13, driving the push / pull rod 32 through the linear drive member 31 to push the sagger into the connecting chamber 2;

[0056] S14, the linear drive member 31 drives the push / pull rod 32 to reset, closing the transition chamber door 4, so that the transition chamber 1 and the connection chamber 2 are isolated from each other;

[0057] S15, the connecting chamber 2 is evacuated to exhaust the air entering with the sagger, and then filled with protective gas to make the concentration of protective gas in the sagger close to the concentration of protective gas in the heating furnace;

[0058] S16, the door connecting the chamber 2 and the heating furnace is opened, and the sagger is transported to the heating furnace through the transmission system for high-temperature sintering;

[0059] S17, the door connecting the connecting chamber 2 and the heating furnace is closed;

[0060] Repeat steps S11-S17 to continuously add materials to the heating furnace, avoid heat loss in the heating furnace, and prevent the sagger from carrying air into the heating furnace, thereby affecting the carbonization effect of the heating furnace on the materials;

[0061] The process of discharging materials from the heating furnace includes the following steps:

[0062] S21, the material is driven and sintered at high temperature by the driving system in the heating furnace and then enters the downstream section of the heating furnace;

[0063] S22, the material enters the connecting bin 2, and the bin door where the connecting bin 2 and the heating furnace are connected is closed;

[0064] S23, driving the push / pull rod 32 through the linear drive member 31 to pull the sagger from the connecting bin 2 into the transition bin 1;

[0065] S24, closing the transition chamber door 4 to isolate the transition chamber 1 and the connection chamber 2 from each other;

[0066] S25, the material is moved out of the transition bin 1 from the material inlet by the loading and unloading device, and then enters the loading and unloading device for unloading;

[0067] Repeating steps S21-S25 can realize continuous discharge of the heating furnace, avoid heat loss in the heating furnace, and prevent the sagger from carrying air into the heating furnace, thereby affecting the carbonization effect of the heating furnace on the material.

[0068] The above is only an embodiment and does not limit the present invention in any way. Any person skilled in the art can make many possible changes, modifications or modifications to the present invention without departing from the scope of the present invention by using the above disclosed technical contents. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the present invention should fall within the scope of protection of the present invention.

Claims

1. A transition device for an atmosphere roller kiln, characterized in that: It comprises a transition chamber (1), a connecting chamber (2), a push / pull mechanism (3) and a transition chamber door (4); The transition chamber (1) is connected to the connection chamber (2); the transition chamber door (4) is arranged at the connection point between the transition chamber (1) and the connection chamber (2) and is used to separate and connect the transition chamber (1) and the connection chamber (2); The push / pull mechanism (3) comprises a linear drive member (31) arranged outside the transition bin (1) and a push / pull rod (32) arranged on the output end of the linear drive member (31); the push / pull rod (32) is slidably arranged on the side wall of the transition bin (1) and penetrates into the transition bin (1); and the push / pull rod (32) is arranged opposite to the transition bin door (4); The transition bin (1) is also provided with a material inlet, which is used to transport the material from the material inlet into the transition bin (1).

2. The transition device for an atmosphere roller kiln according to claim 1, characterized in that: The push / pull rod (32) and the transition bin (1) are in sliding sealing cooperation.

3. The transition device for an atmosphere roller kiln as claimed in claim 2, characterized in that: A through hole (11) is provided on the side wall of the transition bin (1), the size of the through hole (11) is larger than the size of the push / pull rod (32), and a sealing member (12) is provided outside the through hole (11); The sealing member (12) comprises a fixed flange (121) arranged on the side wall of the transition chamber (1) and located outside the through hole (11), a movable flange (122) fixed to the fixed flange (121) on a side facing away from the side wall of the transition chamber (1) via a fastener (123), and a sleeve (124) arranged on a side of the movable flange (122) facing away from the fixed flange (121) via a fastener (123); The fixed flange (121), the movable flange (122) and the sleeve (124) are all provided with openings for the push / pull rod (32) to pass through, and the size of the opening on the fixed flange (121) and the through hole (11) is larger than the size of the opening on the movable flange (122) and the sleeve (124); The sleeve (124) is in sliding sealing cooperation with the push / pull rod (32).

4. The transition device for an atmosphere roller kiln as claimed in claim 3, characterized in that: A sealing ring (125) is provided between the fixed flange (121) and the movable flange (122).

5. The transition device for an atmosphere roller kiln as claimed in claim 3, characterized in that: A push / pull block (33) is provided at the end of the push / pull rod (32) located in the transition bin (1), and the size of the opening on the fixing flange (121) and the through hole (11) is larger than the size of the push / pull block (33).

6. The transition device for an atmosphere roller kiln as claimed in claim 5, characterized in that: A graphite support plate (13) is arranged in the transition bin (1), and the material moves in the transition bin (1) via the graphite support plate (13).

7. The transition device for an atmosphere roller kiln according to claim 6, characterized in that: A graphite roller (34) is provided at the bottom of the push / pull block (33) and is in rolling cooperation with the graphite bearing plate (13).

8. The transition device for an atmosphere roller kiln according to any one of claims 1 to 4, 6 and 7, characterized in that: The material inlet direction of the transition bin (1) is perpendicular to a line connecting the push / pull rod (32) and the transition bin door (4).

9. The transition device for an atmosphere roller kiln according to any one of claims 1 to 4, 6 and 7, characterized in that: The linear drive component (31) is a linear module, a support seat (311) is provided on the output end of the linear module, and the push / pull rod (32) is fixedly provided on the support seat (311).

10. An atmosphere roller kiln, characterized in that: It comprises a heating furnace, a loading and unloading device and a transition device for an atmosphere roller kiln as claimed in any one of claims 1 to 9; The loading and unloading device is used to load and unload materials into the transition bin (1) through the material inlet; The heating furnace is connected to the other end of the connecting chamber (2), and a chamber door is provided between the connecting chamber (2) and the heating furnace.

Images