Energy-saving continuous sintering kiln

Abstract

The utility model belongs to the field of energy-saving continuous sintering kilns, and particularly relates to an energy-saving continuous sintering kiln which comprises a feeding section, a heating section and a cooling section which are sequentially arranged. A feed port is formed in the side edge of the upstream end of the heating section, and a discharge port is formed in the side edge of the downstream end; the upstream end of the cooling section is connected with the discharge hole; the material heating conveying direction and the material cooling conveying direction are parallel to each other and are perpendicular to the heating section material feeding direction and the heating section material discharging direction; and the conveying section areas of the heating section and the cooling section are larger than the opening section areas of the feeding hole and the discharging hole. The distribution position and the distribution structure of the feed port and the discharge port in the heating section and the conveying direction of the material in the heating section reasonably utilize the boundary dimension characteristics of the material, so that the material bearing capacity of the heating section is ensured on the basis of reducing the sizes of the feed port and the discharge port; and the combined action of the two improves the firing efficiency and ensures the compact structure.

Description

Technical Field

[0001] The utility model belongs to the field of energy-saving continuous sintering kilns, and specifically relates to an energy-saving continuous sintering kiln. Background Art

[0002] The continuous sintering 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.

[0003] Taking the atmosphere protection roller kiln as an example, its basic working principle is: use the motor to drive the multiple rows of rollers to rotate, and continuously send the powder material in the graphite sagger into the closed furnace body that is tens of meters long. After being sintered at a high temperature of about 800-1000℃, it is taken out of the furnace and enters the next process. The roller kiln has the advantages of uniform temperature, short firing cycle, and stable operation.

[0004] Atmosphere roller kilns currently in production in my country generally have the problems of high energy consumption and low thermal efficiency. A large amount of heat energy is discharged with the exhaust gas in the cooling section of the kiln. Even if the exhaust gas is reused to reduce the loss, the effect is minimal. Therefore, an energy-saving atmosphere roller kiln is proposed.

[0005] Referring to the prior art "CN216592724 U A roller kiln for carbonization production of lithium battery negative electrode materials", "CN218034373U A roller kiln production system for lithium-ion battery materials" and "CN209181504 U A high-temperature roller kiln for lithium battery positive electrode materials", the kiln structure mainly includes a conveyor roller and an entrance section (or feed replacement chamber), a heating section, a constant temperature section, a cooling section and an outlet section (or a discharge replacement chamber) through which the conveyor roller passes in sequence. These process sections are arranged in a straight line in sequence, with high consumption, large footprint and low work efficiency.

[0006] Referring to the prior art "CN117704794A A continuous sintering furnace", although the process section adopts a rotary structure, its sections are directly connected and the opening size of the connecting position is large, which will cause the temperatures of the sections to interfere with each other, resulting in high energy consumption and low thermal efficiency, and affecting the temperature uniformity in the heating section. Utility Model Content

[0007] The technical problem to be solved by the utility model is to provide an energy-saving, compact and energy-saving continuous sintering kiln with efficient and reliable material transportation.

[0008] The utility model provides an energy-saving continuous sintering kiln, comprising a feeding section, a heating section and a cooling section which are arranged in sequence;

[0009] A feed port is arranged on the side of the upstream end of the heating section, and a discharge port is arranged on the side of the downstream end. The heating section is in the direction of material heating and conveying from the upstream end to the downstream end.

[0010] The direction from the feeding section through the feeding port to the heating section is the material feeding direction of the heating section;

[0011] The upstream end of the cooling section is connected to the discharge port, and the direction from the heating section through the discharge port to the cooling section is the discharge direction of the material in the heating section;

[0012] The cooling section is the material cooling and conveying direction from the upstream end to the downstream end;

[0013] The material heating conveying direction and the material cooling conveying direction are parallel to each other and perpendicular to the material feeding direction and the material discharging direction of the heating section;

[0014] The conveying cross-sectional areas of the heating section and the cooling section are larger than the opening cross-sectional areas of the feed port and the discharge port.

[0015] Furthermore, a roller conveyor mechanism is provided in the heating section, and the material is conveyed from the upstream to the downstream of the heating section through the roller conveyor mechanism;

[0016] The heating section is located at the upstream end of the roller conveyor mechanism and is provided with an upstream material transfer platform, and the downstream end is provided with a downstream material transfer platform;

[0017] The upstream end of the heating section is provided with a first pushing mechanism, and the downstream end is provided with a first pulling mechanism.

[0018] Furthermore, both the upstream section and the downstream end of the roller conveyor mechanism have N1 conveyor rollers with overrunning structures;

[0019] The total distance between N1 conveyor rollers with overrunning structure is longer than or equal to the width of the material, N1≥2.

[0020] Furthermore, sealed doors that can be opened and closed are provided at the feed inlet and the discharge outlet.

[0021] Furthermore, a discharging section is provided downstream of the cooling section, and both the feeding section and the discharging section include feeding and discharging devices;

[0022] The feeding and discharging device of the feeding section is used to convey materials to the feeding port, and the feeding and discharging device of the discharging section is used to discharge materials to the outlet of the cooling section.

[0023] Furthermore, the material inlet and outlet device has two configurations, and one of the two configurations can be selected, wherein one configuration is a material inlet and outlet device a, and the material inlet and outlet device a includes a transition furnace body and a transition furnace material inlet and outlet device;

[0024] The transition furnace body is provided with openings at opposite ends, one of the openings is provided with a first furnace door, and the other opening is provided with a second furnace door, and the second furnace door is used to block or connect the feed inlet or the cooling section outlet;

[0025] The transition furnace loading and unloading device includes a first furnace door loading and unloading mechanism and a second furnace door loading and unloading mechanism;

[0026] The first furnace door inlet and outlet mechanism is used to move materials into or out of the transition furnace body from the opening on the side of the first furnace door when the first furnace door is open and the second furnace door is closed;

[0027] The second furnace door feeding and discharging mechanism includes a linear drive mechanism, a connecting rod arranged on the output end of the linear drive mechanism, and a material push-pull block arranged at the end of the connecting rod. A sliding hole is arranged on the first furnace door, the connecting rod is slidably arranged on the sliding hole and the material push-pull block is located on the inner side of the first furnace door. The linear drive mechanism is used to drive the material push-pull block to move in the transition furnace body when the first furnace door is closed and the second furnace door is opened, so as to move the material into or out of the transition furnace body from the opening on the second furnace door side.

[0028] Furthermore, a vacuum device is provided on the transition furnace body.

[0029] Furthermore, the inlet and outlet device has two configurations, and one of the two configurations can be selected. One configuration is the inlet and outlet device b, which includes a conveying bin, an inlet and outlet assembly and an inlet and outlet conveyor. The conveying bin is provided with a bin door, and the inlet and outlet assembly includes a fork mechanism and a transition conveyor.

[0030] The fork mechanism includes a linear drive assembly and two fork arms arranged on the output end of the linear drive assembly. The linear drive assembly drives the fork arms to extend into the conveying bin through the bin door to receive or unload materials.

[0031] The transition conveyor includes a lifting mechanism I and a roller conveyor I arranged on the conveying end of the lifting mechanism I, and the roller conveyor I is located between two fork arms;

[0032] After the fork arm receives the material from the conveying bin and resets, the lifting mechanism I drives the roller conveyor I to rise and receive the material and transport it to the inlet and outlet conveyor;

[0033] Alternatively, after the material is transported from the inlet and outlet conveyors to the roller conveyor I, the lifting mechanism I drives the roller conveyor I to descend, so that the material is carried by the fork arm, and the linear drive component drives the fork arm to send the material into the conveying bin.

[0034] Furthermore, a cooling section roller conveyor mechanism is provided in the cooling section;

[0035] A material conversion section is arranged between the cooling section and the discharge port, and the material conversion section comprises a cooling section material transfer platform and a third pushing mechanism for pushing the material on the cooling section material transfer platform onto the cooling section roller conveying mechanism.

[0036] The beneficial effect of the utility model is that by combining the arrangement positions of the feed port and the discharge port in the heating section and the feeding direction of the material in the heating section, it is possible to achieve, when firing materials of specific sizes (the cross-sectional area of ​​the outer dimensions of the material to be fired can be smaller than the longitudinal cross-sectional area), the material carrying capacity of the heating section and the cooling section is guaranteed on the basis of reducing the sizes of the feed port and the discharge port, and further improve the utilization rate of heat and cold on the basis of reducing the loss and mutual interference of heat and cold, and multiple aspects work together to improve the firing efficiency, reduce energy consumption and ensure a compact structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Attached Figure 1 It is an overall top view of the utility model;

[0038] Attached Figure 2 It is a top view of the feeding and discharging device a and the upstream of the heating section in the utility model;

[0039] Attached Figure 3 It is a structural schematic diagram of the feeding and discharging device a in the utility model;

[0040] Attached Figure 4 It is a structural schematic diagram of the second furnace door feeding and discharging mechanism of the feeding and discharging device a in the utility model;

[0041] Attached Figure 5 For attachment Figure 4 A partial enlarged view of the middle A;

[0042] Attached Figure 6 It is a front cross-sectional view of the second furnace door feeding and discharging mechanism of the feeding and discharging device a in the utility model;

[0043] Attached Figure 7 For attachment Figure 6 A partial enlarged view of point B in the middle;

[0044] Attached Figure 8 It is a top view of the heating section in the utility model;

[0045] Attached Fig. 9 It is a front cross-sectional view of the roller conveying mechanism in the utility model;

[0046] Attached Fig.10 It is a front cross-sectional view of the feed transition section in the utility model;

[0047] Attached Fig.11 It is a top cross-sectional view of the downstream of the heating section in the utility model;

[0048] Attached Fig.12 It is a top view of the material conversion section, cooling section and feeding and discharging device b in the utility model;

[0049] Attached Fig.13It is a structural schematic diagram of the material conversion section and the cooling section in the utility model;

[0050] Attached Fig.14 It is a structural schematic diagram of the feeding and discharging device b in the utility model;

[0051] Attached Fig.15 It is a front cross-sectional view of the feeding and discharging device b in the utility model.

[0052] In the figure, 1-transition furnace feeding and discharging device; 11-bracket; 12-support platform; 121-first X-direction driving member; 13-first furnace door feeding and discharging mechanism; 131-material bearing platform; 132-material pushing and pulling member; 14-second furnace door feeding and discharging mechanism; 141-furnace door opening and closing mechanism; 142-material pushing and pulling mechanism; 1421-linear driving mechanism; 1422-connecting rod; 1423-material pushing and pulling block; 14231-embedded block; 14232-embedded block driving mechanism; 142321-driving rod; 142 322-driving mechanism; 142323-gear; 142324-rack; 14233-butt plate; 16-loading and unloading device; 161-conveying mechanism; 162-pushing and pulling mechanism; 2-transition furnace body; 21-first furnace door; 211-sliding hole; 22-second furnace door; 3-feeding transition section; 31-third furnace door; 4-heating section; 41-feeding port; 42-discharging port; 43-upstream material transfer platform; 44-downstream material transfer platform; 45-first pushing mechanism; 46-first pulling mechanism ;47-second push mechanism;48-roller conveyor mechanism;481-conveying roller;482-driving assembly;4821-driving active shaft;4822-driving driven shaft;483-one-way clutch mechanism;5-material conversion section;51-cooling section material transfer platform;52-third push mechanism;6-cooling section;61-cooling section roller conveyor mechanism;7-feeding and discharging device b;71-conveying bin;711-bin door;7111-door panel;7112-linear drive member II;712-conveying roller assembly;713- Lifting mechanism II; 72-feeding and discharging assembly; 721-fork mechanism; 7211-linear drive assembly; 72111-guide rail assembly; 72112-sliding frame; 72113-linear drive member I; 7212-fork arm; 722-transition conveyor; 7221-lifting mechanism I; 7222-roller conveyor I; 723-fixed bracket I; 73-feeding and discharging conveyor; 731-roller conveyor II; 732-fixed bracket II; 74-air curtain assembly; 8-material guiding mechanism; 9-box body; 91-matching groove. DETAILED DESCRIPTION

[0053] 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.

[0054] 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.

[0055] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0056] 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.

[0057] 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.

[0058] As attached Figure 1 -Attached Fig.15 As shown, the utility model provides an energy-saving continuous sintering kiln, comprising a feeding section, a heating section 4 and a cooling section 6 arranged in sequence;

[0059] The side of the upstream end of the heating section 4 is provided with a feed port 41, and the side of the downstream end is provided with a discharge port 42, that is, the heating section 4 adopts a side-in-side-out method for loading and unloading, and the heating section 4 is the material heating and conveying direction from the upstream end to the downstream end;

[0060] The direction from the feeding section through the feeding port 41 to the heating section 4 is the material feeding direction of the heating section;

[0061] The upstream end of the cooling section 6 is connected to the discharge port 42, and the direction from the heating section 4 to the cooling section 6 through the discharge port 42 is the discharge direction of the heating section material;

[0062] The cooling section 6 is the material cooling and conveying direction from the upstream end to the downstream end;

[0063] Reference Figure 1 , the material heating conveying direction and the material cooling conveying direction are parallel to each other, and are perpendicular to the material feeding direction of the heating section and the material discharging direction of the heating section;

[0064] The conveying cross-sectional area of ​​the heating section 4 and the cooling section 6 is larger than the opening cross-sectional area of ​​the feed port 41 and the discharge port 42. At this time, the cross-sectional area of ​​the outer dimensions of the material to be fired can be smaller than the longitudinal cross-sectional area. The outer dimensions of the material to be fired include the total length, total width and total height. The cross-sectional area is the surface where the total width and total height are located, and the cross-sectional area is the product of the total width and total height. The longitudinal section is the surface where the total length and total height are located, and the longitudinal cross-sectional area is the product of the total length and total height. Because the cross-sectional area is smaller than the longitudinal cross-sectional area, the total length of the material is longer than the total width, that is, the outer shape of the material to be fired is a long strip with a small cross-section, such as a rectangular structure or a cylindrical structure. At this time, the material is transported from the upstream to the downstream of the heating section 4 along its longitudinal section in the material heating and conveying direction, that is, the width direction of the material is parallel to the length direction of the heating section 4 (the length direction of the heating section 4 is the material heating and conveying direction, and the width direction is the left and right width of the furnace cavity of the heating section 4, that is, Figure 1In the embodiment of the present invention, the heating section 4 is transported by the upper and lower widths shown in the figure, and the height of the furnace cavity of the heating section 4 is the upper and lower heights. Compared with the transportation of the material in the length direction parallel to the length direction of the heating section 4, the heating section 4 can carry and transport more materials in the same time, thereby increasing the material burning amount of the heating section 4, thereby improving the firing efficiency of the kiln, and improving the utilization rate of thermal energy. Similarly, when the material enters the cooling section 6 from the discharge port 42, the burning amount of the material in the cooling section 6 can also be guaranteed, thereby improving the firing efficiency of the kiln and improving the utilization rate of the cooling amount of the cooling section. And the material enters the heating section 4 from the feed port 41 and enters the cooling section 6 from the discharge port 42 vertically along its cross section. At this time, the size of the feed port 41 and the discharge port 42 can be minimized on the basis of being able to accommodate the material in and out, and only slightly approximates the cross-section of the material, thereby reducing the size of the feed port 41 and the discharge port 42 of the heating section 4, thereby reducing the high-temperature loss rate and loss amount in the heating section 4, and reducing energy consumption. When the feed port 41 and the discharge port 42 are equipped with sealed doors, the leakage points of the sealed doors can be reduced, thereby reducing energy consumption and improving firing efficiency.

[0065] It should be noted that the material referred to in the present invention is not limited to a single material, but can also be a whole formed by stacking several materials in multiple rows and columns. For example, the material can adopt a large box body with a rectangular structure, and the outer dimensions of the above-mentioned material are the outer dimensions of the large box body, that is, the cross-sectional dimension of the box body is slightly smaller than the opening cross-section of the feed port 41 and the discharge port 42, and the length is slightly smaller than the width of the heating section 4. The material can also adopt a plurality of stacked small boxes, and a plurality of small boxes are stacked to form a rectangular structure. The outer dimensions of the above-mentioned material are the outer dimensions of the rectangular structure, that is, the cross-sectional dimension of the rectangular structure is slightly smaller than the opening cross-section of the feed port 41 and the discharge port 42, and the length of the rectangular structure is slightly smaller than the width of the heating section 4.

[0066] That is, in the present invention, by combining the arrangement positions of the feed port 41 and the discharge port 42 in the heating section 4 and the feeding direction of the material in the heating section 4, it is possible to achieve the material carrying capacity of the heating section 4 and the cooling section 6 while reducing the size of the feed port 41 and the discharge port 42, and thereby improve the utilization rate of heat and cold while reducing the loss and mutual interference of heat and cold. The combined effect of various aspects improves the firing efficiency, reduces energy consumption and ensures a compact structure. It should be noted that the present application

[0067] In one preferred embodiment, a roller conveyor mechanism 48 is provided in the heating section 4, and the material is conveyed from the upstream to the downstream of the heating section 4 along the material heating and conveying direction through the roller conveyor mechanism 48, that is, the heating section 4 adopts a roller kiln structure, which can carry materials of large volume and medium weight; in other embodiments, the heating section 4 can also adopt a continuous conveying sintering structure such as a mesh belt type, a push rod type or a walking beam type.

[0068] In one preferred embodiment, the heating section 4 is provided with an upstream material transfer platform 43 at the upstream end of the roller conveyor mechanism 48, and a downstream material transfer platform 44 at the downstream end. Preferably, the upstream material transfer platform 43 and the downstream material transfer platform 44 are plate-shaped platforms made of graphite. The material slides frictionally on the upstream material transfer platform 43 and the downstream material transfer platform 44. At this time, the material will not slip inertia during the movement, which can improve the conveying stability of heavier materials.

[0069] A first pushing mechanism 45 is provided at the upstream end of the heating section 4, and a first pulling mechanism 46 is provided at the downstream end. Preferably, the first pushing mechanism 45 and the first pulling mechanism 46 are respectively provided at the two end surfaces of the heating section 4; the material enters the upstream material transfer platform 43 at the upstream end from the feed port 41, and is pushed onto the roller conveyor mechanism 48 by the first pushing mechanism 45. At this time, due to the friction sliding of the material on the upstream material transfer platform 43, the speed at which the material enters the roller conveyor mechanism 48 can be increased, and the material feeding efficiency of the heating section can be improved. There will be no problem of collision with the upstream material caused by inertial slip of the material, thereby improving the conveying stability. The first pulling mechanism 46 pulls the material at the downstream end of the roller conveyor mechanism 48 into the downstream material transfer platform 44, and enters the cooling section 6 from the discharge port 42. Similarly, at this time, since the material slides with the downstream material transfer platform 44 during the process of being pulled into the downstream material transfer platform 44, the speed at which the material exits the roller conveyor mechanism 48 can be increased, thereby improving the material discharge efficiency of the heating section. There will be no problem of the material hitting the upstream end surface of the heating section 4 due to inertial slip, thereby improving the transportation stability.

[0070] In this embodiment, a material transfer platform is used in conjunction with a first pushing mechanism 45 and a first pulling mechanism 46 to realize the entry and exit of materials on the roller conveyor mechanism 48. On the one hand, it can increase the entry and exit speed of materials relative to the roller conveyor mechanism 48, while ensuring the stability during entry and exit, making it more convenient to realize the short-interval and sequential conveying and firing of multiple materials by the roller conveyor mechanism 48. On the other hand, it is convenient for materials to enter and exit stably and quickly from the feed port 41 and the discharge port 42 on the side of the heating section 4, while improving the feed and discharge efficiency and the stability of the feed and discharge when feeding at the feed port 41 and discharging at the discharge port 42.

[0071] In a preferred embodiment, a feed transition section 3 is provided at the upstream end of the heating section 4. In this embodiment, the upstream material transfer platform 43, the loading port 41 and the first pushing mechanism 45 of the heating section 4 are all provided on the feed transition section 3, so as to facilitate the docking of the loading structure with the main structure of the heating section 4. Preferably, a third furnace door 31 is also provided between the feed transition section 3 and the heating section 4, so as to keep the heating section 4 in a closed state before the material is pushed from the upstream material transfer platform 43 into the heating section 4, so as to further reduce heat loss.

[0072] In one embodiment, both the upstream and downstream ends of the roller conveyor mechanism 48 have N1 conveyor rollers 481 with an overrunning structure, that is, the N1 conveyor rollers 481 in the upstream section have an overrunning structure, and the N1 conveyor rollers 481 in the downstream section also have an overrunning structure. The conveyor rollers 481 with the overrunning structure can be driven by power and rotate at a driving speed. When a material on the conveyor roller 481 moves in the conveying direction at a speed faster than the conveying speed of the conveyor roller 481, the conveyor roller 481 will rotate faster than the driving speed to adapt to the conveying speed of the material. After the material has no external force or inertia force, the conveyor roller 481 will return to the driving speed to rotate;

[0073] The total interval of N1 conveying rollers 481 with the overrunning structure is longer than or equal to the width of the material, N1≥2, that is, N1 conveying rollers 481 with the overrunning structure can fully carry one material. In this embodiment, the first pushing mechanism 45 can quickly push the material from the upstream material transfer platform 43 to the roller conveying mechanism 48 at a speed faster than the conveying roller 481 conveys the material. Similarly, the first pulling mechanism 46 can quickly pull the material from the roller conveying mechanism 48 to the downstream material transfer platform 44 at a speed faster than the conveying roller 481 conveys the material. When the material moving speed is faster than the conveying speed of the conveying roller 481, the conveying roller 481 will adaptively adapt to the material to overspeed rotation, so that the conveying roller 481 will not generate sliding friction with the material, thereby achieving the goal of avoiding damage to the conveying roller 481 on the basis of improving the rapid up and down movement of the material from the roller conveying mechanism 48, increasing the service life of the conveying roller 481, reducing the failure rate of the heating section 4, and thus reducing downtime. In this embodiment, the intervals between the multiple materials conveyed on the roller conveyor mechanism 48 can be very small, thereby improving the utilization rate of the heating section furnace cavity and the heat utilization rate.

[0074] In a preferred embodiment, the roller conveyor mechanism 48 includes a plurality of conveyor rollers 481 and a driving assembly 482 for driving the plurality of conveyor rollers 481 to rotate. The N1 conveyor rollers 481 with an overrunning structure are specifically connected to the driving assembly 482 through a one-way clutch mechanism 483, and the rotation direction of the conveyor roller 481 is opposite to the limiting direction of the one-way clutch mechanism 483. Preferably, the one-way clutch mechanism 483 is a one-way bearing, a ratchet or an overrunning clutch. Preferably, the driving assembly 482 includes a driving active shaft 4821 and a plurality of driven driving shafts 4822; one end of the plurality of driven driving shafts 4822 is connected to the plurality of conveyor rollers 481 in a one-to-one correspondence, and the other end is meshedly connected to the driving active shaft 4821; the driving active shaft 4821 is perpendicular to the plurality of driven driving shafts 4822, and the plurality of driven driving shafts 4822 are driven by helical gears, bevel gears or synchronous belts. In this embodiment, one driving shaft 4821 plus one driving motor can drive all the conveying rollers 481 to rotate synchronously, thereby reducing the number of power devices of the driving assembly 482, reducing costs, and ensuring the synchronization of the rotation speeds of all the conveying rollers 481. At this time, the one-way clutch mechanism 483 of the N1 conveying rollers 481 with the overrunning structure is set on the driving driven shaft 4822.

[0075] In one embodiment, the feed port 41 and the discharge port 42 are provided with sealed doors that can be opened and closed, so that when the feed port 41 and the discharge port 42 are not used for loading and unloading, the sealing door can be closed to improve the airtightness of the heating section 4, further avoid the heat loss inside the heating section, and reduce energy. At this time, not only can the heat in the heating section 4 be prevented from being lost from the feed port 41 and the discharge port 42, but also the heat can be prevented from flowing from the discharge port 42 to the cooling section 6, thereby reducing the cooling burden of the cooling section 6. In addition, since the feed port 41 and the discharge port 42 are designed to minimize the size, the heat loss of the heating section 4 and the cooling loss rate of the cooling section 6 can be reduced when the feed port 41 and the discharge port 42 are open, and the mutual interference between the heating section 4 and the cooling section 6 can be reduced, thereby reducing energy consumption. In addition, since the design of the upstream material transfer platform 43 and the downstream material transfer platform 44 can also increase the feeding speed of the feed port 41 and the discharging speed of the discharge port 42, the opening time of the sealed chamber door can be greatly reduced, and the heat loss of the feed port 41 and the discharge port 42 can be further reduced, and the energy consumption can be further reduced. That is, in this embodiment, by reducing the size of the feed port 41 and the discharge port 42, reducing the diameter of the heat flow rate when opening, reducing the number of leakage points when closing, and increasing the material inlet and outlet speeds to reduce the opening time of the sealed chamber door, the heat loss in the heating section 4 is reduced, thereby reducing energy consumption.

[0076] In one embodiment, the utility model also includes a second pulling mechanism (not shown in the figure) that is arranged as needed to pull the material from the outside of the feed port 41 into the upstream material transfer platform 43. In other embodiments, the material can be pushed from the feed port 41 to the upstream material transfer platform 43 through the loading device of the loading section.

[0077] In one embodiment, the utility model also includes a second pushing mechanism 47 that is arranged to push the material on the downstream material transfer platform 44 out of the discharge port 42 as needed. In other embodiments, a pulling mechanism is arranged on the side of the discharge transition section 5 opposite to the discharge port 42, which is used to pull the material on the downstream material transfer platform 44 from the discharge port 42 to the discharge material transfer platform.

[0078] In one embodiment, a discharging section is provided downstream of the cooling section 6. Both the feeding section and the discharging section include a discharging device. The discharging device has two structures. For the convenience of description, they are defined as a discharging device a and a discharging device b7. The discharging device of the feeding section can be either a discharging device a or b7. Similarly, the discharging device of the discharging section can be either a discharging device a or b7. The specific selection can be made according to actual needs. Preferably, refer to the attached Figure 1 -Attached Fig.15 As shown, the feeding and discharging device of the feeding section adopts the feeding and discharging device a, and the feeding and discharging device of the discharging section adopts the feeding and discharging device b7;

[0079] The feeding and discharging device of the feeding section is used to convey materials to the feeding port 41 , and the feeding and discharging device of the discharging section is used to discharge materials to the outlet of the cooling section 6 .

[0080] In one embodiment, the feeding and discharging device a comprises a transition furnace body 2 and a transition furnace feeding and discharging device 1, wherein the filtering furnace body 2 is used as a transition furnace for loading materials upstream of the heating section 4, or as a transition furnace for unloading materials at the outlet of the cooling section 6;

[0081] The transition furnace body 2 is provided with openings at opposite ends, one of which is provided with a first furnace door 21, and the other is provided with a second furnace door 22; and the second furnace door 22 is used to block or connect the feed port 41 or the outlet of the cooling section 6. It should be noted that when the present feeding and discharging device a is used as a loading section of the heating section 4, the second furnace door 22 and the sealed bin door at the feed port 41 can be the same door, and of course, can also be two furnace doors working synchronously. A movable platform is preferably provided in the transition furnace body 2 for carrying materials to stay and slide in the transition furnace body 2;

[0082] The transition furnace loading and unloading device 1 includes a first furnace door loading and unloading mechanism 13 and a second furnace door loading and unloading mechanism 14. The first furnace door loading and unloading mechanism 13 is used to complete the loading and unloading of materials relative to the transition furnace body 2 on the first furnace door 21 side of the transition furnace body 2, and the second furnace door loading and unloading mechanism 14 is used to complete the loading and unloading of materials equivalent to the first furnace door 21, that is, loading and unloading relative to the feed port 41 or the outlet of the cooling section 6. In this way, the loading and unloading device a can complete the continuous loading of the sealed state of the heating section 4 or the continuous unloading of the sealed state of the cooling section 6. One set of settings can be used as a loading device and an unloading device, which greatly reduces the R&D and production costs;

[0083] The first furnace door material inlet and outlet mechanism 13 is used to move materials into or out of the transition furnace body 2 from the opening on the side of the first furnace door 21 when the first furnace door 21 is open and the second furnace door 22 is closed. When the materials are moved into or out of the transition furnace body 2 from the opening on the side of the first furnace door 21, the second furnace door 22 is in a closed state, isolating the transition furnace body 2 and the heating section 4 or the cooling section, and the sealing state of the heating section 4 or the cooling section 6 can be maintained;

[0084] The second furnace door feeding and discharging mechanism 14 includes a material pushing and pulling mechanism 142, and the material pushing and pulling mechanism 142 includes a linear driving mechanism 1421, a connecting rod 1422 arranged on the output end of the linear driving mechanism 1421, and a material pushing and pulling block 1423 arranged at the end of the connecting rod 1422. A sliding hole 211 is arranged on the first furnace door 21, and the connecting rod 1422 is slidably arranged on the sliding hole 211 and the material pushing and pulling block 1423 is located on the inner side of the first furnace door 21. The linear driving mechanism 1421 is used for driving the material pushing and pulling block 1423 to move in the transition furnace body 2 when the first furnace door 21 is closed and the second furnace door 22 is opened, so as to move the material from the opening on the side of the second furnace door 22 into or out of the transition furnace body 2. When the material is moved into the transition furnace body 2 from the opening on the side of the second furnace door 22, the material at the outlet of the cooling section 6 is transported to the transition furnace body 2 to complete the unloading of the cooling section 6. When the material is moved out of the transition furnace body 2 from the opening on the side of the second furnace door 22, the material in the transition furnace body 2 is transported to the upstream of the heating section 4 to complete the loading of the heating section 4. In the process of completing the movement of the material into or out of the transition furnace body 2 from the opening on the side of the second furnace door 22, the first furnace door 21 is in a closed state, thereby ensuring that the heating section 4 or the cooling section 6 is also in a sealed state, and no external gas will flow into the heating section 4 or the cooling section 6, and at the same time, the high temperature in the heating section 4 and the cold in the cooling section 6 will not be lost. In addition, the second furnace door material inlet and outlet mechanism 14 is arranged on one side of the first furnace door 21, away from the second furnace door 22 and the heating section 4 or the cooling section 6. On the one hand, it is convenient for the configuration, assembly and maintenance of the second furnace door material inlet and outlet mechanism 14. On the other hand, the operation process of the entire second furnace door material inlet and outlet mechanism 14 will not affect the transfer of materials between the transition furnace body 2 and the heating section 4 or the cooling section 6, and will not affect the opening and closing of the second furnace door 22. On the other hand, the linear drive mechanism 1421 of the driving part of the second furnace door material inlet and outlet mechanism 14 is located on the outside of the transition furnace body 2, away from the harsh environment of the transition furnace body 2 and the heating section 4 or the cooling section 6, thereby reducing the performance requirements of the linear drive mechanism 1421, thereby reducing costs, and also increasing the service life of the linear drive mechanism 1421.

[0085] The feeding and discharging device a provided by the utility model has the following beneficial effects:

[0086] 1. The feeding and discharging device a can be set at the feeding port 41 of the heating section 4 as a feeding device, and can also be set at the outlet of the cooling section 6 as a feeding device. A set of structures can be used as a feeding device and a feeding device, which greatly reduces the R&D and production costs.

[0087] 2. By providing a transition furnace body 2 with two furnace doors and a transition furnace loading and unloading device 1, the heating section 4 or the cooling section 6 can be kept in a sealed state for loading and unloading operations, thereby avoiding the loss of vacuum or protective gas in the furnace during the loading and unloading operations of the heating section 4 or the cooling section 6, and at the same time avoiding the loss of heat in the heating section 4 or the loss of cold in the cooling section 6.

[0088] 3. The setting position of the second furnace door feeding and discharging mechanism 14, on the one hand, is convenient for the configuration, assembly and maintenance of the second furnace door feeding and discharging mechanism 14; on the other hand, the operation process of the entire second furnace door feeding and discharging mechanism 14 will not affect the transfer of materials between the transition furnace body 2 and the heating section 4 or the cooling section 6, and will not affect the opening and closing of the second furnace door 22; on the other hand, the linear driving mechanism 1421 of the driving part of the second furnace door feeding and discharging mechanism 14 is located on the outside of the transition furnace body 2, away from the harsh environment of the transition furnace body 2 and the heating section 4 or the cooling section 6, thereby reducing the performance requirements of the linear driving mechanism 1421, thereby reducing costs, and also increasing the service life of the linear driving mechanism 1421.

[0089] Fourth, the connecting rod 1422 and the sliding hole 211 in the second furnace door feeding and discharging mechanism 14 slide together. On the one hand, the connecting rod 1422 can move synchronously with the opening and closing of the first furnace door 21 to maintain the relative position of the two. On the other hand, the sliding hole 211 can also serve as the intermediate support structure of the connecting rod 1422, so that the connecting rod 1422, which was originally a cantilever structure, becomes a two-point support structure. When the material is pushed and pulled, it is changed to a three-point support structure in which the end of the connecting rod 1422 is connected to the material, the middle is slidably connected to the sliding hole 211, and the other end is fixedly connected to the output end of the linear drive mechanism 1421, thereby improving the structural stability of the connecting rod 1422 in all states, that is, the first furnace door 21 is not only used as a furnace door, but also used as a supporting guide structure for the connecting rod 1422. In addition, the connecting rod 1422 can also serve as a supplement to the sliding hole 211 to ensure the sealing of the first furnace door 21, ensure the sealing effect of the first furnace door 21, and realize the pushing and pulling of materials when the first furnace door 21 is in a closed state.

[0090] In one of the embodiments, the connecting rod 1422 cooperates with the sliding hole 211 in a sliding seal, thereby ensuring the sealing effect of the first furnace door 21 on the transition furnace body 2, and then ensuring the sealing effect inside the transition furnace body 2 when the first furnace door 21 and the second furnace door 22 are both in a closed state, and ensuring the sealing effect of the heating section 4 or the cooling section 6 when the first furnace door 21 is closed and the second furnace door 22 is opened.

[0091] In the embodiment in which the material loading and unloading device a is arranged at the outlet of the cooling section 6 and used as a material unloading device, a material interlocking mechanism is provided on the material push-pull block 1423, and the material interlocking mechanism is used to connect the material push-pull block 1423 with the material, and then pull the material into / out of the transition furnace body 2, that is, the material interlocking mechanism is used to complete the detachable connection between the material push-pull block 1423 and the material, so as to facilitate pulling the material from the cooling section outlet into the transition furnace body 2.

[0092] Preferably, the material engaging mechanism includes an engaging block 14231 and an engaging block driving mechanism 14232;

[0093] The engaging block 14231 is movably arranged on the material push-pull block 1423, and a matching groove 91 is correspondingly arranged on the material. The movement of the engaging block 14231 can make the engaging block 14231 embedded in the matching groove 91 to complete the connection between the material push-pull block 1423 and the material, or make the engaging block 14231 detach from the matching groove 91 to complete the separation between the material push-pull block 1423 and the material.

[0094] The engaging block driving mechanism 14232 comprises a transmission mechanism, a driving rod 142321 and a driving mechanism 142322. The driving mechanism 142322 is arranged on the output end of the linear driving mechanism 1421. One end of the driving rod 142321 is connected to the driving mechanism 142322, and the other end of the driving rod 142321 extends into the inner side of the first furnace door 21 through the sliding hole 211 and is connected to the transmission mechanism.

[0095] The driving mechanism 142322 drives the driving rod 142321 to move, and the driving rod 142321 drives the transmission mechanism to move the engaging block 14231. In this embodiment, the driving mechanism 142322 of the engaging block driving mechanism 14232 is arranged outside the transition furnace body 2, away from the harsh environment of the transition furnace body 2 and the heating section 4 or the cooling section 6, thereby reducing the performance requirements of the driving mechanism 142322, thereby reducing the cost, and also increasing the service life of the driving mechanism 142322.

[0096] Preferably, the material push-pull block 1423 further includes an abutment plate 14233 , which is directly fixed to the end of the connecting rod 1422 , so that the abutment plate 14233 can be moved by the drive of the linear drive mechanism 1421 , thereby pushing the material to move.

[0097] Preferably, the engaging block 14231 is slidably arranged on the abutment plate 14233 or the connecting rod 1422, and the transmission mechanism preferably adopts a gear 142323 and a rack 142324, the rack 142324 is fixed on the upper engaging block 14231, the gear 142323 is fixed on the driving rod 142321, and the driving mechanism 142322 is a rotary driving mechanism, which is used to drive the driving rod 142321 to rotate, the driving rod 142321 rotates to drive the gear 142323 to rotate, the gear 142323 drives the rack 142324 to move linearly, and then drives the engaging block 14231 to slide linearly, so as to complete the matching and separation with the material. It should be noted that the transmission mechanism can also adopt a transmission mode such as a chain drive or a worm gear, which can be selected according to actual needs.

[0098] Preferably, when the engaging block driving mechanism 14232 drives the engaging block 14231 to engage with the matching groove 91 of the material, the abutting plate 14233 abuts against the side wall of the material. At this time, the abutting plate 14233 and the engaging block 14231 can clamp the material, thereby achieving double fixation of the material. When the material is heavy and the sliding surface of the moving platform in the transition furnace body 2 is smooth, inertial sliding can be effectively avoided during the pushing and pulling of the material, thereby improving the pushing stability.

[0099] In one embodiment, the second furnace door feeding and discharging mechanism 14 further includes a furnace door opening and closing mechanism 141, and the first furnace door 21 is disposed at the output end of the furnace door opening and closing mechanism 141;

[0100] The moving direction of the furnace door opening and closing mechanism 141 is parallel to the moving direction of the linear drive mechanism 1421. In this embodiment, the opening and closing direction of the first furnace door 21 is consistent with the moving direction of the connecting rod 1422. At this time, the opening and closing action of the first furnace door 21 will not affect the second furnace door feeding and discharging mechanism 14, and the action of the second furnace door feeding and discharging mechanism 14 will not affect the opening and closing of the first furnace door 21. Preferably, the moving directions of the linear drive mechanism 1421 and the furnace door opening and closing mechanism 141 are parallel to the axis of the transition furnace body 2.

[0101] In one embodiment, the feeding and discharging device a further comprises a bracket 11 and a support table 12 arranged on the bracket 11 and movable along the X direction. Preferably, the movement of the support table 12 is automatic rather than manual. Specifically, a first X-direction driving member 121 is arranged on the bracket 11, and an output end of the first X-direction driving member 121 is connected to the support table 12 to drive the support table 12 to move along the X direction.

[0102] The furnace door opening and closing mechanism 141 and the linear drive mechanism 1421 are arranged on the support platform 12, and the furnace door opening and closing mechanism 141 and the linear drive mechanism 1421 both move along the Y direction, that is, the furnace door opening and closing mechanism 141 and the linear drive mechanism 1421 move synchronously with the support platform 12;

[0103] The first furnace door loading and unloading mechanism 13 includes a material carrying platform 131 arranged on the support platform 12 and a material push-pull member 132 that can move on the material carrying platform 131 along the Y direction, wherein the material carrying platform 131 is used to carry materials, and the material push-pull member 132 is used to push the materials on the material carrying platform 131 into the transition furnace body 2 along the Y direction, or pull the materials from the transition furnace body 2 into the material carrying platform 131, thereby completing the loading and unloading of materials at the first furnace door 21 position of the transition furnace body 2;

[0104] Preferably, the Y direction is parallel to the axis of the transition furnace body 2. In this embodiment, the action of the first furnace door feeding and discharging mechanism 13 and the opening and closing operation of the first furnace door 21 are linked by the support platform 12, that is, when the support platform 12 is moved to align the material bearing platform 131 in the first furnace door feeding and discharging mechanism 13 with the transition furnace body 2, the first furnace door 21 synchronously leaves the opening of the transition furnace body 2 to make room for the material bearing platform 131. When the first furnace door 21 is aligned with the opening of the transition furnace body 2, the material bearing platform 131 is reset to the initial position, so that the loading and unloading of materials, the opening and closing of the first furnace door 21, the removal of the first furnace door 21 to expose the opening of the transition furnace body 2, and the alignment of the material with the opening of the transition furnace body 2 can be realized synchronously, which can improve the efficiency of feeding and discharging, and the material can be pushed out of the transition furnace body 2 from the opening on the other side of the transition furnace body 2 when the first furnace door 21 is in the closed state.

[0105] In one embodiment, the material loading and unloading device a further includes a loading and unloading device 16 disposed on one side of the bracket 11, and the loading and unloading device 16 is used to load and unload the first furnace door material loading and unloading mechanism 13, specifically, to load and unload the material carrying platform 131 in the initial position;

[0106] The loading and unloading device 16 includes a conveying mechanism 161 and a pushing and pulling mechanism 162, wherein the conveying mechanism 161 is a belt conveyor, a roller conveyor or a plate conveyor. The conveying mechanism 161 can convey the material to the next workstation, or convey the material from the previous workstation to the material loading platform 131, and the pushing and pulling mechanism 162 is used to move the material from the material loading platform 131 to the conveying mechanism 161, or move the material from the conveying mechanism 161 to the material loading platform 131.

[0107] In one of the embodiments, a vacuum device is provided on the transition furnace body 2. When the feed-in and feed-out device a is provided at the upstream end of the heating section 4, the air on the material to be introduced into the heating section 4 can be sucked out to avoid oxidation of the material during the sintering process. When the feed-in and feed-out device a is provided at the downstream end of the heating section 4, the waste gas on the heating section 4 and the material can be sucked out.

[0108] In one embodiment, the inlet and outlet device b7 includes a conveying bin 71, an inlet and outlet assembly 72 and an inlet and outlet conveyor 73;

[0109] The conveying bin 71 is a feeding transition bin connected to the upstream end of the heating section 4 for feeding, or a discharging transition bin connected to the outlet of the cooling section 6 for discharging, or may be a downstream part of the bin body of the cooling section 6;

[0110] When the inlet and outlet device b7 is installed at the upstream end of the heating section 4, the material conveying path is: the material is conveyed from the previous station to the inlet and outlet conveyor 73, then conveyed to the inlet and outlet assembly 72 through the inlet and outlet conveyor 73, then conveyed to the conveying bin 71 through the inlet and outlet assembly 72, and finally conveyed to the upstream of the heating section 4 through the conveying bin 71 and the feed port 41;

[0111] When the material loading and unloading device b7 is installed at the outlet of the cooling section 6, the material conveying path is: the material is conveyed from the cooling section 6 to the conveying bin 71, then conveyed to the material loading and unloading conveyor 73 through the material loading and unloading assembly 72, and finally conveyed to the next workstation by the material loading and unloading conveyor 73.

[0112] The in-and-out material assembly 72 is used to transport the material in the conveying bin 71 to the in-and-out material conveyor 73. In this case, the in-and-out material assembly 72 is used as a discharging assembly. The in-and-out material assembly 72 can also be used to transport the material on the in-and-out material conveyor 73 to the conveying bin 71. In this case, the in-and-out material assembly 72 is used as a feeding assembly.

[0113] Similarly, the in-and-out conveyor 73 is used to convey the material conveyed from the in-and-out assembly 72 to the next station. At this time, the in-and-out conveyor 73 is used as a discharge conveyor. The in-and-out conveyor 73 can also be used to input materials and convey the materials to the in-and-out assembly 72. Finally, the materials are conveyed from the in-and-out assembly 72 to the conveying bin 71. At this time, the in-and-out conveyor 73 is used as a feed conveyor.

[0114] The conveying bin 71 is provided with a bin door 711 for opening and closing the conveying bin 71 to prevent the conveying bin 71 from being opened when there is no need to discharge materials, resulting in the loss of high temperature in the heating section 4 or cold in the cooling section 6, or air entering the heating section 4 or the cooling section 6. The material inlet and outlet assembly 72 includes a fork mechanism 721 and a transition conveyor 722. During the feeding and discharging steps of the roller kiln, the bin door 711 of the utility model is opened for a short time, which can reduce heat loss and thus reduce energy consumption.

[0115] The fork mechanism 721 includes a linear drive component 7211 and two fork arms 7212 arranged on the output end of the linear drive component 7211. The linear drive component 7211 drives the fork arms 7212 to extend into the conveying bin 71 through the bin door 711 to receive or unload materials. Preferably, the linear drive component 7211 drives the fork arms 7212 to move horizontally, and then extend into the conveying bin 71 through the bin door 711 to receive or unload materials, so as to ensure the stability of receiving or unloading materials.

[0116] The transition conveyor 722 includes a lifting mechanism I7221 and a roller conveyor I7222 arranged on the conveying end of the lifting mechanism I7221. The roller conveyor I7222 is located between the two fork arms 7212 to ensure that the roller conveyor I7222 and the two fork arms 7212 do not interfere with each other during their movement. During the discharging process of the cooling section 6, after the fork arms 7212 receive the material from the conveying bin 71 and reset, the lifting mechanism I7221 drives the roller conveyor I7222 to rise and receive the material and convey the material to the in-and-out conveyor 73; during the feeding process of the heating section 4, after the material is conveyed from the in-and-out conveyor 73 to the roller conveyor I7222, the lifting mechanism I7221 drives the roller conveyor I7222 to descend, so that the material is carried by the fork arms 7212, and the fork arms 7212 are driven by the linear drive assembly 7211 to deliver the material into the conveying bin 71.

[0117] The feeding and discharging device b7 provided by the utility model can be used for feeding the heating section 4 and discharging the cooling section 6, and can reduce the research and development cost of the feeding and discharging mechanism of the roller kiln. The positional relationship between the fork arm 7212 and the transition conveyor 722, that is, the lifting mechanism I7221 and the roller conveyor I7222 are arranged between the two fork arms 7212, can reasonably utilize the space outside the door 711 of the conveying bin 71, can realize the material being taken out from the conveying bin 71 by the fork arm 7212, and then the roller conveyor I7222 receives the material from the fork arm 7212 and conveys it, and can also realize that the roller conveyor I7222 first carries the material, and then the roller conveyor I7222 descends to transfer the material to be carried by the two fork arms 7212. On the basis of ensuring the compact structure, the materials can be taken out from the conveying bin 71 and conveyed to the conveying bin 71 stably and reliably, the materials can be unloaded from the fork arm 7212 and the materials can be transferred to the fork arm 7212 efficiently and stably, and at the same time, the problems of difficulty in changing direction and difficulty in adjusting the discharge height caused by the conventional discharge method of directly connecting the conveying rollers to the conveying rollers will not occur (the discharge method of the conveying roller connecting the conveying roller requires one of the conveying rollers to be arranged at an angle if the discharge height needs to be adjusted, and the material sintered in the roller kiln is very heavy, and inclined transportation will pose a safety hazard).

[0118] In one of the embodiments, since the current roller kiln discharge is generally a rolling conveying scheme (i.e., the roller body is used to rotate and transport the materials), the materials in the roller kiln are large in volume and heavy in weight. Considering the dead weight and inertia of the materials, the roller body cannot run too fast, resulting in a long discharge time. Therefore, in order to improve the conveying efficiency, when the lifting mechanism I7221 rises to make the roller conveyor I7222 take over the materials, the roller conveyor I7222, the fork arm 7212 and the in-and-out conveyor 73 are at the same height. During the roller kiln discharge process, the materials pass through the roller conveyor I7222, the fork arm 7212 located between the roller conveyor I7222 and the in-and-out conveyor 73, and the in-and-out conveyor 73 in sequence. During the roller kiln feeding process, the materials pass through the in-and-out conveyor 73, the fork arm 7212 located between the roller conveyor I7222 and the in-and-out conveyor 73, and the roller conveyor I7222 in sequence. In this embodiment, when the lifting mechanism I7221 rises to allow the roller conveyor I7222 to receive the material, the material is still in contact with the fork arm 7212; at this time, the roller body on the roller conveyor I7222 rotates to move the material toward the in-and-out conveyor 73, and during the movement, the material always rubs against the fork arm 7212 between the roller conveyor I7222 and the in-and-out conveyor 73 to form frictional sliding to provide a certain friction force. Therefore, it is not necessary to consider the dead weight and inertia of the material, and the conveying speed of the roller conveyor I7222 and the in-and-out conveyor 73 is guaranteed, and the problem of extending the braking distance of the material due to inertia will not occur, so that the conveying stability of the roller body is guaranteed while ensuring efficiency. This embodiment is suitable for the case where the dead weight of the material is heavy. Preferably, in this embodiment, the fork arm 7212 is made of graphite.

[0119] In one embodiment, the in-feed and out-feed conveyor 73 includes a roller conveyor II 731, which is supported by a fixed bracket II 732 so that the roller conveyor II 731 is at the same height as the roller conveyor I 7222, and the roller conveyor II 731 and the roller conveyor I 7222 are located on the same straight line, that is, the materials are conveyed in a straight line, wherein the roller bodies of the roller conveyor I 7222 and the roller conveyor II 731 have a rotating power and can drive the materials to move, that is, an electric roller can be used to cooperate with a chain to drive other rollers for transmission. In addition, there is a gap between the roller conveyor II 731 and the roller conveyor I 7222, and the fork arm 7212 located between the roller conveyor I 7222 and the in-feed and out-feed conveyor 73 is in the gap to provide an installation space for the fork arm 7212.

[0120] In one embodiment, the material inlet and outlet assembly 72 further includes a fixing bracket I 723;

[0121] The linear drive assembly 7211 includes a guide rail assembly 72111 arranged on a fixed bracket I 723 and facing the warehouse door 711, a sliding frame 72112 slidably arranged on the guide rail assembly 72111, and a linear drive component I 72113 driving the sliding frame 72112 to move along the guide rail assembly 72111. Two fork arms 7212 are fixedly arranged on the sliding frame 72112. Such an arrangement can ensure the movement stability of the fork arms 7212 and the carrying capacity of the fork arms 7212. The linear drive component I 72113 can adopt similar drive components such as cylinders, oil cylinders or electric cylinders.

[0122] In one embodiment, a conveying roller assembly 712 and a lifting mechanism II 713 are provided in the conveying bin 71. The lifting mechanism II 713 is provided at the end of the conveying roller assembly 712 and is used to lift or lower the material conveyed to the bin door 711. When the roller kiln is feeding, the lifting mechanism II 713 is used to lower the material conveyed to the bin door 711 so that the material enters the conveying roller assembly 712. When the roller kiln is discharging, the lifting mechanism II 713 is used to lift the material conveyed to the bin door 711 so that the material leaves the conveying roller assembly. 712, and is taken over by the fork mechanism 721. Specifically, the output end of the lifting mechanism II 713 lifts the material through the gap between the roller bodies of the conveying roller assembly 712, and the output end of the lifting mechanism II 713 is staggered with the two fork arms 7212. In this embodiment, when the roller kiln is feeding, the fork arms 7212 carry the material into the bin door 711, and then the lifting mechanism II 713 lifts the material from the fork arms 7212, and the fork arms 7212 are reset. Finally, the lifting mechanism II 713 is reset to place the material on the conveying roller assembly 712. When the roller kiln is discharging, before the fork arms 7212 carry the material, the lifting mechanism II 713 lifts the material to facilitate the fork arms 7212 to insert into the bottom of the material for acceptance.

[0123] In one embodiment, the bin door 711 includes a door panel 7111 longitudinally slidably arranged on the conveying bin 71, and a linear driving member II 7112 arranged on the outer wall of the conveying bin 71 for driving the door panel 7111 to slide. With this arrangement, the bin door 711 can be opened and closed in the longitudinal direction without affecting the space in front of the bin door 711.

[0124] In the embodiment in which the feeding and discharging device b7 is arranged at the outlet of the cooling section 6, an air curtain assembly 74 is arranged in the conveying bin 71, and the air curtain assembly 74 is arranged between the conveying bin 71 and the bin body of the cooling section 6; the distance from the air curtain assembly 74 to the bin door 711 is greater than the size of the material, that is, the material can be placed between the air curtain assembly 74 and the bin door 711. At this time, after the material has completely passed through the air curtain assembly 74 and is located before the bin door 711, the air curtain assembly 74 can be opened first to form an air curtain, and then the bin door 711 can be opened. By setting the air curtain assembly 74, the air curtain assembly 74 can be opened before or during the opening of the bin door 711, and the protective gas is released toward the bin door 711 through the air curtain assembly 74, thereby effectively reducing the external air from entering the conveying bin 71 and the interior of the cooling section 6 through the bin door 711, and reducing the influence of the opening of the bin door 711 on the atmosphere of the cooling section 6.

[0125] When the feeding and discharging device b7 is arranged upstream of the heating section 4, an opening connected to the feed port 41 is also arranged in the conveying bin 71, and the material in the conveying bin 71 is conveyed from the material feed port 41 to the upstream of the heating section 4 through the conveying roller assembly 712, or the material on the conveying roller assembly 712 is pulled from the feed port 41 to the upstream of the heating section 4 through the second pulling mechanism.

[0126] In this embodiment, the sealed door at the feed inlet and the door 711 of the conveying bin 71 constitute the inlet and outlet doors of the conveying bin 71. When loading, the door 711 is in an open state, and then the material enters the conveying bin 71 through the inlet and outlet assembly 72, and then the door 711 is closed, and the sealed door at the feed inlet is opened to convey the material to the upstream of the heating section 4. At this time, since the door 711 is in a closed state, the heating section 4 and the conveying bin 71 will not be connected to the outside world, avoiding the loss of high temperature transition.

[0127] In one embodiment, a cooling section roller conveyor mechanism 61 is provided in the cooling section 6, that is, the cooling section 6 also uses a roller conveyor to convey materials;

[0128] A material conversion section 5 is provided between the cooling section 6 and the discharge port 42. The material conversion section 5 includes a cooling section material transfer platform 51 and a third pushing mechanism 52 for pushing the material on the cooling section material transfer platform 51 into the cooling section roller conveyor mechanism 61, thereby improving the material conveying efficiency and conveying stability from the discharge port 42 of the heating section 4 to the cooling section 6. Specifically, the material on the downstream material transfer platform 44 is pushed into the cooling section material transfer platform 51 by the second pushing mechanism 47. In this process, the material moves on the two transfer platforms, which can improve the pushing speed of the second pushing mechanism 47 and the material will not slip by inertia, thereby improving the transfer stability on the basis of ensuring the material transfer efficiency.

[0129] In one embodiment, the utility model further includes a material guiding mechanism 8 disposed in the downstream section of the heating section 4, and the material guiding mechanism 8 is used to adjust the material to the middle of the conveying roller 481 of the roller conveying mechanism 48, thereby facilitating the first pulling mechanism 46 to accurately dock the material.

[0130] The utility model also provides a material firing method, using the above energy-saving continuous sintering kiln, including single material firing and multiple material continuous firing;

[0131] The single material firing process includes: the material passes through the feeding section and enters the heating section 4 from the feeding port 41 along the material feeding direction of the heating section, and then the material is transported from the upstream to the downstream of the heating section 4 along the material heating conveying direction for firing. After the firing is completed, the material enters the cooling section 6 from the discharge port 42 along the material discharging direction of the heating section, and the material is transported in the cooling section 6 along the material cooling conveying direction for cooling, and finally discharged from the discharge section;

[0132] Specifically, the material enters the heating section 4 from the feed port 41 along the vertical direction of the cross section of the material through the feed section, and then the material is transported from the upstream to the downstream of the heating section 4 along the vertical direction of the longitudinal section of the material for firing. After the firing is completed, the material enters the cooling section 6 from the discharge port 42 along the vertical direction of its cross section for cooling, and the material is transported from the upstream to the downstream of the cooling section 6 along the vertical direction of the longitudinal section of the material, and finally discharged from the discharge section, so that the material carrying capacity of the heating section 4 and the cooling section 6 can be increased while reducing the temperature loss of the feed port 41 and the discharge port 42;

[0133] The continuous firing process of multiple materials includes: multiple materials are transported in sequence according to the firing process of a single material, and multiple materials are transported and fired on the heating section 4 at the same time.

[0134] The utility model also provides a specific embodiment, wherein the feeding section is provided with a feeding and discharging device a, and the discharging section is provided with a feeding and discharging device a7. At this time, the energy-saving continuous sintering kiln comprises a transition furnace feeding and discharging device 1, a transition furnace body 2, a feeding transition section 3, a heating section 4, a discharging transition section 5, a cooling section 6 and a feeding and discharging device b7 which are arranged in sequence, wherein the transition furnace body 2 and the discharging transition section 5 are respectively arranged on the sides of both ends of the heating section 4, and are respectively connected with the feeding port 41 and the discharging port 42, and a vacuum device is arranged on the transition furnace body 2. And the material is a powder material to be loaded in a graphite sagger 10.

[0135] 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. An energy-saving continuous sintering kiln, characterized in that: It comprises a feeding section, a heating section (4) and a cooling section (6) which are arranged in sequence; The side of the upstream end of the heating section (4) is provided with a feed port (41), and the side of the downstream end is provided with a discharge port (42), and the heating section (4) is in the direction of material heating and conveying from the upstream end to the downstream end; The direction from the feeding section through the feeding port (41) to the heating section (4) is the material feeding direction of the heating section; The upstream end of the cooling section (6) is connected to the discharge port (42), and the direction from the heating section (4) through the discharge port (42) to the cooling section (6) is the discharge direction of the heating section material; The cooling section (6) is the material cooling and conveying direction from the upstream end to the downstream end; The material heating conveying direction and the material cooling conveying direction are parallel to each other, and are perpendicular to the material feeding direction and the material discharging direction of the heating section; The conveying cross-sectional areas of the heating section (4) and the cooling section (6) are larger than the opening cross-sectional areas of the feed port (41) and the discharge port (42).

2. The energy-saving continuous sintering kiln according to claim 1, characterized in that: A roller conveyor mechanism (48) is provided in the heating section (4), and the material is conveyed from the upstream to the downstream of the heating section (4) via the roller conveyor mechanism (48); The heating section (4) is provided with an upstream material transfer platform (43) at the upstream end of the roller conveying mechanism (48), and a downstream material transfer platform (44) at the downstream end; The heating section (4) is provided with a first pushing mechanism (45) at the upstream end and a first pulling mechanism (46) at the downstream end.

3. The energy-saving continuous sintering kiln according to claim 2, characterized in that: The roller conveying mechanism (48) has N1 conveying rollers (481) with overrunning structures at both the upstream section and the downstream end; The total interval between N1 conveying rollers (481) with a transcending structure is longer than or equal to the width of the material, and N1≥2.

4. The energy-saving continuous sintering kiln according to any one of claims 1 to 3, characterized in that: The feed port (41) and the discharge port (42) are provided with sealed doors that can be opened and closed.

5. The energy-saving continuous sintering kiln according to claim 4, characterized in that: A discharging section is also provided downstream of the cooling section (6), and both the feeding section and the discharging section include feeding and discharging devices; The inlet and outlet devices of the feed section are used to transport materials to the feed port (41), and the inlet and outlet devices of the outlet section are used to discharge materials to the outlet of the cooling section (6).

6. The energy-saving continuous sintering kiln according to claim 5, characterized in that: The material inlet and outlet device has two configurations, and one of the two configurations can be selected. One configuration is a material inlet and outlet device a, and the material inlet and outlet device a comprises a transition furnace body (2) and a transition furnace material inlet and outlet device (1); The transition furnace body (2) is provided with openings at opposite ends, one of the openings is provided with a first furnace door (21), and the other opening is provided with a second furnace door (22), and the second furnace door (22) is used to block or connect the feed port (41) or the outlet of the cooling section (6); The transition furnace loading and unloading device comprises a first furnace door loading and unloading mechanism (11) and a second furnace door loading and unloading mechanism (12); The first furnace door material inlet and outlet mechanism (11) is used to move materials into or out of the transition furnace body (2) from the opening on the side of the first furnace door (21) when the first furnace door (21) is open and the second furnace door (22) is closed; The second furnace door feeding and discharging mechanism (12) comprises a linear drive mechanism (121), a connecting rod (122) arranged at the output end of the linear drive mechanism (121), and a material push-pull block (123) arranged at the end of the connecting rod (122); a sliding hole (211) is arranged on the first furnace door (21); the connecting rod (122) is slidably arranged on the sliding hole (211) and the material push-pull block (123) is located on the inner side of the first furnace door (21); the linear drive mechanism (121) is used to drive the material push-pull block (123) to move in the transition furnace body (2) when the first furnace door (21) is closed and the second furnace door (22) is opened, so as to move the material from the opening on the side of the second furnace door (22) into or out of the transition furnace body (2).

7. The energy-saving continuous sintering kiln according to claim 6, characterized in that: A vacuum extraction device is provided on the transition furnace body (2).

8. The energy-saving continuous sintering kiln according to claim 5, characterized in that: The material inlet and outlet device has two configurations, and either of the two configurations can be selected. One configuration is a material inlet and outlet device b (7), wherein the material inlet and outlet device b (7) comprises a conveying bin (71), a material inlet and outlet assembly (72) and a material inlet and outlet conveyor (73). The conveying bin (71) is provided with a bin door (711), and the material inlet and outlet assembly (72) comprises a fork mechanism (721) and a transition conveyor (722); The fork mechanism (721) comprises a linear drive component (7211) and two fork arms (7212) arranged on the output end of the linear drive component (7211); the linear drive component (7211) drives the fork arms (7212) to extend into the conveying bin (71) through the bin door (711) to receive or unload materials; The transition conveyor (722) comprises a lifting mechanism I (7221) and a roller conveyor I (7222) arranged on the conveying end of the lifting mechanism I (7221), and the roller conveyor I (7222) is located between the two fork arms (7212); After the fork arm (7212) receives the material from the conveying bin (71) and resets, the lifting mechanism I (7221) drives the roller conveyor I (7222) to rise to receive the material and convey the material to the inlet and outlet conveyor (73); or, after the material is conveyed from the inlet and outlet conveyor (73) to the roller conveyor I (7222), the lifting mechanism I (7221) drives the roller conveyor I (7222) to descend, so that the material is carried by the fork arm (7212), and the linear drive assembly (7211) drives the fork arm (7212) to deliver the material into the conveying bin (71).

9. The energy-saving continuous sintering kiln according to any one of claims 1 to 3, characterized in that: A cooling section roller conveying mechanism (61) is provided in the cooling section (6); A material conversion section (5) is provided between the cooling section (6) and the discharge port (42), and the material conversion section (5) comprises a cooling section material transfer platform (51) and a third pushing mechanism (52) for pushing the material on the cooling section material transfer platform (51) onto the cooling section roller conveyor mechanism (61).

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