Iron tailing foaming ceramic sintering device and method

Abstract

Each furnace body comprises a first mounting table, first supporting legs are arranged at the four corners of the bottom of each first mounting table, a U-shaped hearth with an upward opening is formed in the top of each first mounting table, a U-shaped frame with a downward opening is mounted on the top face of each first mounting table, and a lifting mechanism is arranged in each U-shaped frame; a hearth top plate is installed below the lifting mechanism and is driven by the lifting mechanism to seal and cover the top of the U-shaped hearth. When the heating device is used and the heating device needs to be replaced, only the lead screw needs to be controlled to drive the hearth top plate to rise to a high position, the hearth top plate and the U-shaped hearth are completely exposed to the outside, at the moment, an operator can overhaul the internal condition of the U-shaped hearth, and meanwhile the heating device is conveniently replaced; after the heating device is replaced or maintained, the lead screw can be controlled to drive the hearth top plate to seal the top of the U-shaped hearth.

Description

Technical Field

[0001] The present invention relates to the technical field of sintering furnaces, and particularly to an iron tailing foamed ceramic sintering device and method. Background Technique

[0002] After the iron tailing foamed ceramic blank is prepared, it needs to be sintered and shaped. The sintered iron tailing foamed ceramic can improve the physical properties of the ceramic. During the sintering process, the bonding between ceramic particles becomes closer, forming a dense structure, thereby significantly increasing the density and hardness of the ceramic. This can not only enhance the compressive strength and wear resistance of the ceramic, but also improve its high-temperature resistance. At the same time, sintering can reduce the pores and capillary pores in the ceramic, reduce the ability of moisture and gas to permeate, make the ceramic material more dense, and sintering can also promote particle bonding, increase the chemical inertness of the ceramic, and improve its corrosion resistance. In addition, during the sintering process, by controlling the sintering temperature and time, the strength and durability of the product can be ensured. Therefore, appropriate sintering conditions can enable ceramic products to achieve ideal physical and chemical properties and meet the actual application requirements.

[0003] Most of the foamed ceramic sintering furnaces are tunnel furnaces. Generally, gas heating and electric heating are used inside the tunnel furnace. For the tunnel furnace with electric heating, the heating elements inside need to be replaced after a certain period of use. The traditional tunnel furnace body is not convenient to open, resulting in inconvenient operation when replacing the heating elements. This process requires opening the cover plate for installing the heating elements, and the cover plate is fixed by bolts, making it inconvenient to disassemble. For this reason, we propose an iron tailing foamed ceramic sintering device and method. Summary of the Invention

[0004] The present invention provides an iron tailing foamed ceramic sintering device and method, which has the advantage of being convenient for replacing the heating device, and solves the problems raised in the above background technique.

[0005] The technical solution of the present invention is realized as follows: An iron tailing foamed ceramic sintering device includes a number of furnace bodies connected end to end. Each furnace body includes a first installation platform. Four corners of the bottom of the first installation platform are respectively provided with first support legs. The top of the first installation platform is provided with a U-shaped furnace cavity with an upward opening. The top surface of the first installation platform is installed with a U-shaped frame body with a downward opening. A lifting mechanism is arranged inside the U-shaped frame body. A furnace top plate is installed below the lifting mechanism. The furnace top plate is hermetically covered on the top of the U-shaped furnace cavity under the drive of the lifting mechanism. Heating devices are respectively arranged at the bottom of the inner cavity of the U-shaped furnace cavity and below the furnace top plate. A plurality of first support shafts are arranged below the inner cavity of the U-shaped furnace cavity. Both ends of the first support shafts are rotationally connected to both sides of the first installation platform, and the plurality of first support shafts are driven to rotate by the same driving device.

[0006] Preferably, side baffles are arranged on both sides of the first installation platform, and the side baffles are connected to both sides of the U-shaped furnace cavity.

[0007] Preferably, two seat blocks perpendicular to the first support shaft are symmetrically arranged at the bottom of the inner cavity of the U-shaped furnace chamber. The first support shaft is movably arranged in the seat blocks, and the seat blocks are connected to the bottom of the U-shaped furnace chamber.

[0008] Preferably, furnace chamber sealing plates corresponding to the seat blocks are vertically arranged on the bottom surface of the furnace chamber top plate. The bottom of the furnace chamber sealing plates is in sealing contact with the top surface of the seat blocks, and heating devices are arranged on the opposite surfaces of the two furnace chamber sealing plates.

[0009] Preferably, the driving device includes a first driving motor arranged below the first installation platform. Sprockets are arranged on the rotating shaft of the first driving motor and at one end of each first support shaft, and the sprockets are connected by a transmission chain.

[0010] Preferably, the lifting mechanism includes a lead screw vertically installed above the furnace chamber top plate. The top of the lead screw is movably placed inside the top of the U-shaped frame body. A rotating seat is threadedly installed at the top of the lead screw, and the rotating seat is rotatably arranged on the top of the U-shaped frame body. A lifting motor is arranged above one side of the U-shaped frame body. Transmission sprockets are coaxially arranged on the rotating shaft of the lifting motor and on the rotating seat, and the two transmission sprockets are connected by a transmission chain.

[0011] Preferably, the bottom of the lead screw is vertically installed on the support frame. Both sides of the support frame are respectively connected to the sliders through connecting frames. The sliders are respectively slidably arranged on the guide rails, and the guide rails are installed on the U-shaped frame body. Two strip-shaped support plates are symmetrically arranged below the furnace chamber top plate. At least two mounting rods are vertically arranged on the strip-shaped support plates. The mounting rods penetrate through the furnace chamber top plate and extend to its top. The tops of the mounting rods are respectively detachably arranged on the support frame, and fastening nuts are also threadedly arranged on each mounting rod.

[0012] Preferably, it further includes a feeding conveying device and a discharging conveying device respectively arranged at both ends of the iron tailings foamed ceramic sintering device. The feeding conveying device and the discharging conveying device both include a second installation platform. Second support legs are respectively arranged at the four corners of the second installation platform. A plurality of second support shafts parallel to the first support shaft are arranged on the second installation platform. Both ends of the second support shaft are respectively rotatably connected to both sides of the second installation platform. A second driving motor is arranged below the second installation platform. Sprockets are arranged on the rotating shaft of the second driving motor and at one end of the second support shaft, and the sprockets are connected by a transmission chain. Two limiting seat blocks perpendicular to the second support shaft are also arranged on the surface of the second installation platform. The top of the limiting seat blocks is located above the second support shaft, and the positions of the limiting seat blocks correspond to the positions of the seat blocks.

[0013] Preferably, it further includes a support grate. The surface of the support grate is used for placing the iron tailings foamed ceramic to be sintered, and the support grate travels between the limiting seat blocks and between the limiting seat blocks.

[0014] Furthermore, the present invention also proposes a use method of the iron tailings foamed ceramic sintering device, including the following steps:

[0015] Step 1: Place the support grate flat, and then place the iron tailings foam ceramics to be sintered on the support grate.

[0016] Step 2: Place the support grate on the feeding conveying device, and the feeding conveying device conveys the support grate into the furnace body for heating and sintering.

[0017] Step 3: The iron tailings foam ceramics after being sintered in the furnace body travel on the discharging conveying device, and then the support grate on the discharging conveying device can be removed.

[0018] Compared with the prior art, when in use, when the heating device needs to be replaced, only need to control the lead screw to rotate to drive the furnace top plate to rise to a high position, so that the furnace top plate and the U-shaped furnace are completely exposed outside. At this time, the operator can repair the internal situation of the U-shaped furnace, and at the same time, it is also convenient to replace the heating device. After the replacement or maintenance of the heating device is completed, the lead screw can be controlled to drive the furnace top plate to seal the top of the U-shaped furnace. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1 It is a schematic structural view of one side of the present invention.

[0021] Figure 2 It is a schematic structural view of the other side of the present invention.

[0022] Figure 3 It is a schematic structural view of the furnace body in the present invention Figure 1 .

[0023] Figure 4 It is a schematic structural view of the furnace body in the present invention Figure 2 .

[0024] Figure 5 It is the front view of the furnace body in the present invention.

[0025] Figure 6 It is a schematic structural view of the bottom of the furnace top plate in the present invention.

[0026] Figure 7 It is a schematic structural view of the feeding conveying device and the discharging conveying device in the present invention.

[0027] In the figure: 1, feeding conveying device; 2, furnace body; 3, discharging conveying device; 4, side baffle; 5, supporting grate; 6, first driving motor; 7, first mounting table; 8, U-shaped furnace chamber; 9, heating element; 10, first support shaft; 11, first support leg; 12, retaining seat; 13, furnace chamber sealing plate; 14, furnace chamber top plate; 15, mounting rod; 16, connecting frame; 17, support frame; 18, lead screw; 19, lifting motor; 20, guide rail; 21, U-shaped frame body; 22, driving sprocket; 23, rotating seat; 24, fastening nut; 25, strip-shaped support plate; 26, second support leg; 27, limit retaining seat; 28, second mounting table; 29, second support shaft; 30, second driving motor. Detailed implementation manners

[0028] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0029] Referring to Figures 1 to 7 , the present invention provides a technical solution: a sintering device for iron tailing foamed ceramics, including a plurality of furnace bodies 2 connected end to end, as Figure 1 and Figure 2 shown, a plurality of furnace bodies 2 are arranged together to form a channel with a relatively large length, and this channel is used for high-temperature sintering of iron tailing foamed ceramics.

[0030] The structure of each furnace body 2 is the same, as Figure 3 and Figure 4 shown, each furnace body 2 includes a first mounting table 7, first support legs 11 are provided at the four corners of the bottom of the first mounting table 7, a U-shaped furnace chamber 8 with an upward opening is provided at the top of the first mounting table 7, side baffles 4 are provided on both sides of the first mounting table 7, and the side baffles 4 are connected to both sides of the U-shaped furnace chamber 8, so as to make both sides of the U-shaped furnace chamber 8 more stable;

[0031] As Figure 3As shown, a U-shaped frame body 21 with a downward opening is installed on the top surface of the first installation table 7. The height of the U-shaped frame body 21 is much greater than the height of the U-shaped furnace chamber 8, and the U-shaped furnace chamber 8 is located inside the U-shaped frame body 21. A lifting mechanism is provided inside the U-shaped frame body 21. The lifting mechanism includes a lead screw 18. The top of the lead screw 18 is movably placed inside the top of the U-shaped frame body 21. A rotating seat 23 is threadedly installed at the top of the lead screw 18, and the rotating seat 23 is rotatably arranged on the top of the U-shaped frame body 21. A lifting motor 19 is provided above one side of the U-shaped frame body 21. Transmission sprockets 22 are coaxially provided on the rotating shaft of the lifting motor 19 and on the rotating seat 23 respectively, and the two transmission sprockets 22 are connected by a transmission chain. Therefore, when the lifting motor 19 rotates, it can drive the rotating seat 23 to rotate. Since the rotating seat 23 is threadedly connected to the lead screw 18, the lead screw 18 can extend and retract along the rotating seat 23;

[0032] As Figure 2 and Figure 3 shown, a furnace top plate 14 is installed below the lifting mechanism. Specifically, the furnace top plate 14 is arranged below the lead screw 18 and the two are vertically arranged. The connection between the furnace top plate 14 and the lead screw 18 is as Figure 4 and Figure 5 shown. Two strip-shaped support plates 25 are symmetrically provided below the furnace top plate 14. At least two mounting rods 15 are vertically provided on the strip-shaped support plates 25. The mounting rods 15 penetrate through the furnace top plate 14 and extend to its top. The tops of the mounting rods 15 are respectively detachably arranged on the support frame 17, that is, the tops of the mounting rods 15 and the support frame 17 are fastened by nuts. A fastening nut 24 is also threadedly provided on each mounting rod 15. Rotating the fastening nut 24 can firmly fix the furnace top plate 14 on the strip-shaped support plates 25. Then, the support frame 17 is vertically installed at the bottom of the lead screw 18. In this way, the support frame 17 can move up and down together with the furnace top plate 14 along with the lead screw 18;

[0033] When the lead screw 18 drives the furnace top plate 14 to rise, the furnace top plate 14 rises above the U-shaped furnace chamber 8, as Figure 4 shown. In this way, the inside of the U-shaped furnace chamber 8 and the area below the furnace top plate 14 can be completely exposed. When the furnace top plate 14 descends, the furnace top plate 14 is driven by the lifting mechanism to seal the top of the U-shaped furnace chamber 8. At this time, the furnace top plate 14 seals the top of the U-shaped furnace chamber 8;

[0034] To make the up and down movement of the support frame 17 and the furnace top plate 14 more stable, as Figure 3 shown, the two sides of the support frame 17 are respectively connected to sliders through connecting frames 16. The sliders are respectively slidably arranged on guide rails 20. The guide rails 20 are installed on the U-shaped frame body 21. When the support frame 17 and the furnace top plate 14 move up and down, the provided guide rails 20 can play a stabilizing effect.

[0035] Furthermore, asFigure 4 As shown in the figure, a plurality of first support shafts 10 are provided below the inner cavity of the U-shaped furnace chamber 8. The plurality of first support shafts 10 are arranged at intervals. Both ends of the first support shaft 10 are rotatably connected to both sides of the first mounting table 7. At this time, the first support shaft 10 penetrates both sides of the U-shaped furnace chamber 8, and the plurality of first support shafts 10 are driven to rotate by the same driving device. The driving device includes a first driving motor 6 provided below the first mounting table 7. Sprockets are provided on the rotating shaft of the first driving motor 6 and one end of each first support shaft 10. The sprockets are connected by a transmission chain. Therefore, when the first driving motor 6 rotates, it can drive each first support shaft 10 to rotate simultaneously;

[0036] Here it should be noted that, as Figure 1 and Figure 2 shown, after a plurality of furnace bodies are connected end to end, there is no gap between each furnace body, and the rotation speeds of the first support shafts 10 in each furnace body are the same. Because during the sintering process, the iron tailing foamed ceramics to be sintered will be placed on the first support shaft 10. The first support shaft 10 is used not only to support the iron tailing foamed ceramics, but also to drive the iron tailing foamed ceramics to move forward.

[0037] Furthermore, two seat blocks 12 perpendicular to the first support shaft 10 are symmetrically provided at the bottom of the inner cavity of the U-shaped furnace chamber 8. The first support shaft 10 is movably arranged in the seat blocks 12, and the seat blocks 12 are connected to the bottom of the U-shaped furnace chamber 8;

[0038] Immediately afterwards, furnace chamber sealing plates 13 corresponding to the seat blocks 12 are vertically provided on the bottom surface of the furnace chamber top plate 14. When the furnace chamber top plate 14 covers the top of the U-shaped furnace chamber 8, the bottom of the furnace chamber sealing plate 13 also just makes sealing contact with the top surface of the seat block 12 at this time;

[0039] Heating devices are provided on the opposite surfaces of the two furnace chamber sealing plates 13, and heating devices are also provided at the bottom of the inner cavity of the U-shaped furnace chamber 8 and below the furnace chamber top plate 14. As Figure 3 、 Figure 4 and Figure 6 shown, the heating device is a heating body 9 provided on the side surface of the furnace chamber sealing plate 13, at the bottom of the inner cavity of the U-shaped furnace chamber 8 and below the furnace chamber top plate 14. The heating body 9 is specifically a heating rod or a heating resistance wire. In this way, when the heating device generates heat, a high-temperature sintering environment can be formed inside the U-shaped furnace chamber 8;

[0040] It should be emphasized that the furnace chamber sealing plate 13 and the furnace chamber top plate 14 are of an integral structure, and the seat block 12 and the U-shaped furnace chamber 8 are of an integral structure, and the furnace chamber sealing plate 13, the furnace chamber top plate 14, the seat block 12 and the U-shaped furnace chamber 8 are all made of furnace material, so that all components forming the furnace chamber can withstand high temperatures for a long time.

[0041] Based on the above embodiments, as Figure 1 andFigure 2 As shown, a feeding conveyor device 1 and a discharging conveyor device 3 are respectively arranged at both ends of the iron tailings foamed ceramic sintering device. The feeding conveyor device 1 is used to convey the iron tailings foamed ceramic into the furnace body, and the discharging conveyor device 3 conveys the sintered iron tailings foamed ceramic to the outside of the furnace body;

[0042] The feeding conveyor device 1 and the discharging conveyor device 3 have the same structure, that is, both the feeding conveyor device 1 and the discharging conveyor device 3 include a second mounting table 28. Second support legs 26 are respectively arranged at the four corners of the second mounting table 28. A plurality of second support shafts 29 parallel to the first support shaft 10 are arranged on the second mounting table 28. Both ends of the second support shaft 29 are rotatably connected to both sides of the second mounting table 28;

[0043] A second driving motor 30 is arranged below the second mounting table 28. Sprockets are arranged on the rotating shaft of the second driving motor 30 and one end of the second support shaft 29. The sprockets are connected by a transmission chain. Therefore, when the second driving motor 30 rotates, it can drive the second support shaft 29 to rotate, and the rotation speed of the second support shaft 29 is the same as that of the first support shaft 10;

[0044] Two limit retaining seats 27 perpendicular to the second support shaft 29 are further arranged on the surface of the second mounting table 28. The top of the limit retaining seat 27 is located above the second support shaft 29, and the position of the limit retaining seat 27 corresponds to the position of the retaining seat 12. The limit retaining seat 27 is arranged on the surface of the second mounting table 28, and the second support shaft 29 is movably located within the limit retaining seat 27.

[0045] In summary, the present invention further includes a support grate 5. The number of the support grates 5 is several. The size of the support grate 5 matches the distance between the limit retaining seats 27 and the distance between the retaining seats 12. Because in actual use, the surface of the support grate 5 is used to place the iron tailings foamed ceramic to be sintered. Then the support grate 5 is placed on the second support shaft 29 of the feeding conveyor device 1, and then the second support shaft 29 drives the support grate 5 to slowly enter the furnace body for sintering, that is, the support grate 5 travels between the limit retaining seats 27 and between the retaining seats 12. The arranged retaining seats 12 and the limit retaining seats 27 play a role in limiting and guiding the support grate 5, preventing the position of the support grate 5 from shifting during the forward progression;

[0046] As Figure 3 shown, when the retaining seat 12 and the furnace chamber sealing plate 13 come into contact, the retaining seat 12 and the furnace chamber sealing plate 13 seal all the heat, making the heat concentrate on the iron tailings foamed ceramic as much as possible. Moreover, the arranged retaining seat 12 and the furnace chamber sealing plate 13 can prevent the heat from roasting both ends of the first support shaft 10;

[0047] After long-term use, when the heating device needs to be replaced, it is only necessary to control the lead screw 18 to drive the furnace top plate 14 to rise to a high position, so that the furnace top plate 14 and the U-shaped furnace 8 are completely exposed to the outside. At this time, the operator can repair the inside of the U-shaped furnace 8 and at the same time facilitate the replacement of the heating device. After the replacement or maintenance of the heating device is completed, the lead screw 18 can be controlled to drive the furnace top plate 14 to seal the top of the U-shaped furnace 8.

[0048] Finally, the present invention also proposes a method for using an iron tailing foamed ceramic sintering device, which includes the following steps:

[0049] Step 1: Lay the support grate flat, and then place the iron tailing foamed ceramic to be sintered on the support grate;

[0050] Step 2: Place the support grate on the feeding conveyor device, and the feeding conveyor device conveys the support grate into the furnace body for heating and sintering;

[0051] Step 3: The iron tailing foamed ceramic after being sintered in the furnace body travels on the discharging conveyor device, and then the support grate located on the discharging conveyor device can be removed.

[0052] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An iron tailings foamed ceramic sintering device, comprising a plurality of furnace bodies (2) connected to each other, each furnace body (2) comprising a first mounting platform (7), and first supporting legs (11) are provided at four corners of the bottom of the first mounting platform (7), characterized in that: A U-shaped furnace (8) with an opening facing upward is provided on the top of the first mounting platform (7); A U-shaped frame (21) with an opening facing downward is installed on the top surface of the first mounting platform (7), a lifting mechanism is provided inside the U-shaped frame (21), a furnace top plate (14) is installed below the lifting mechanism, and the furnace top plate (14) is sealed and covered on the top of the U-shaped furnace (8) under the drive of the lifting mechanism; A heating device is provided at the bottom of the inner cavity of the U-shaped furnace (8) and below the furnace top plate (14); A plurality of first support shafts (10) are arranged below the inner cavity of the U-shaped furnace (8), the two ends of the first support shafts (10) are rotatably connected to the two sides of the first mounting platform (7), and the plurality of first support shafts (10) are driven to rotate by the same driving device.

2. The iron tailings foamed ceramic sintering device according to claim 1, characterized in that: Side baffles (4) are provided on both sides of the first mounting platform (7), and the side baffles (4) are connected to both sides of the U-shaped furnace (8).

3. The iron tailings foamed ceramic sintering device according to claim 2, characterized in that: Two stoppers (12) perpendicular to the first support shaft (10) are symmetrically arranged at the bottom of the inner cavity of the U-shaped furnace (8); the first support shaft (10) is movably arranged in the stoppers (12); and the stoppers (12) are connected to the bottom of the U-shaped furnace (8).

4. The iron tailings foamed ceramic sintering device according to claim 3, characterized in that: The bottom surface of the furnace top plate (14) is vertically provided with furnace sealing plates (13) corresponding to the stopper seats (12) respectively, the bottom of the furnace sealing plate (13) is in sealing contact with the top surface of the stopper seat (12), and heating devices are provided on the opposite surfaces of the two furnace sealing plates (13).

5. The iron tailings foamed ceramic sintering device according to claim 4, characterized in that: The driving device comprises a first driving motor (6) arranged below the first mounting platform (7), and sprockets are arranged on the rotating shaft of the first driving motor (6) and at one end of each first supporting shaft (10), and the sprockets are connected by a transmission chain.

6. The iron tailings foamed ceramic sintering device according to claim 5, characterized in that: The lifting mechanism comprises a lead screw (18) vertically mounted above the furnace top plate (14), the top of the lead screw (18) being movably placed in the top of the U-shaped frame (21), a rotating seat (23) being threadedly mounted on the top of the lead screw (18), and the rotating seat (23) being rotatably arranged on the top of the U-shaped frame (21); A lifting motor (19) is arranged above one side of the U-shaped frame (21), and a transmission sprocket (22) is coaxially arranged on the rotating shaft of the lifting motor (19) and the rotating seat (23), and the two transmission sprockets (22) are connected via a transmission chain.

7. The iron tailings foamed ceramic sintering device according to claim 6, characterized in that: The bottom of the lead screw (18) is vertically mounted on the support frame (17), and both sides of the support frame (17) are connected to the sliders through the connecting frame (16), and the sliders are slidably mounted on the guide rails (20), and the guide rails (20) are mounted on the U-shaped frame (21); Two strip support plates (25) are symmetrically arranged below the furnace top plate (14), and at least two mounting rods (15) are vertically arranged on the strip support plates (25). The mounting rods (15) penetrate the furnace top plate (14) and extend to the top thereof. The tops of the mounting rods (15) are detachably arranged on the support frames (17), and a fastening nut (24) is also threadedly arranged on each mounting rod (15).

8. The iron tailings foamed ceramic sintering device according to claim 7, characterized in that: It also includes a feeding conveying device (1) and a discharging conveying device (3) respectively arranged at two ends of the iron tailings foamed ceramic sintering device; The feed conveying device (1) and the discharge conveying device (3) both include a second mounting platform (28), the second mounting platform (28) is provided with second support legs (26) at four corners thereof, the second mounting platform (28) is provided with a plurality of second support shafts (29) parallel to the first support shaft (10), and the two ends of the second support shaft (29) are respectively rotatably connected to two sides of the second mounting platform (28); A second drive motor (30) is provided below the second mounting platform (28), and sprockets are provided on the rotating shaft of the second drive motor (30) and one end of the second support shaft (29), and the sprockets are connected by a transmission chain; Two limit stops (27) perpendicular to the second support shaft (29) are also provided on the surface of the second mounting platform (28), the top of the limit stops (27) is located above the second support shaft (29), and the position of the limit stops (27) corresponds to the position of the stop seat (12).

9. The iron tailings foamed ceramic sintering device according to claim 8, characterized in that: It also comprises a supporting grate (5), the surface of which is used to place the iron tailings foamed ceramics to be sintered, and the supporting grate (5) moves between the limit stops (27) and between the limit stops (27).

10. A method for using the iron tailings foamed ceramic sintering device as claimed in claim 9, characterized in that: The steps include: Step 1: Level the support grate, and then place the iron tailings foam ceramic to be sintered on the support grate; Step 2: placing the supporting grate on a feeding conveying device, and the feeding conveying device conveys the supporting grate into the furnace body for heating and sintering; Step 3: The iron tailings foamed ceramics after sintering in the furnace body are moved on the discharging conveying device, and then the supporting grate on the discharging conveying device is removed.

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