Sealed material distribution device of high-temperature melting furnace

Abstract

The utility model discloses a sealed material distribution device for a high-temperature melting furnace. The sealed material distribution device comprises a feeding bin, a blanking bin, a telescopic structure, a liftable supporting structure, an elastic sealing structure and a material pushing plate, the blanking bin is located below the feeding bin, one side of the blanking bin comprises an elastic sealing structure, and the other side of the blanking bin communicates with the high-temperature melting furnace; one end of the telescopic structure is arranged outside the blanking bin and connected with the liftable supporting structure, and the other end of the telescopic structure penetrates through the elastic sealing structure and is connected with the material pushing plate located in the blanking bin, so that vertical movement of the material pushing plate and telescopic reciprocating between the blanking bin and the high-temperature melting furnace are achieved; when the telescopic structure moves up and down, the elastic sealing structure keeps the blanking bin sealed; and the material pushing plate is used for pushing materials in the blanking bin to a heated surface in the high-temperature melting furnace. The sealing device can meet the sealing requirement when the high-temperature melting furnace disposes hazardous waste, and meanwhile, the material distribution uniformity can be improved. In addition, the service life of the material distributing device is prolonged, and the production cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of hazardous waste disposal technology, and in particular to a sealing and feeding device for a high-temperature melting furnace. Background Technology

[0002] With the rapid development of the environmental protection industry, high-temperature melting furnaces are widely used in the hazardous waste disposal industry, mainly for treating hazardous wastes such as industrial waste salt and fly ash. As equipment used to melt solid waste and hazardous waste under high-temperature conditions, the main purpose of a high-temperature melting furnace is to decompose and melt the waste through high-temperature heating, thereby achieving harmless treatment and resource utilization. High-temperature melting treatment of hazardous waste typically includes pyrolysis and melting. Pyrolysis temperatures are generally between 300℃ and 550℃, a process that removes most of the organic matter from the waste. Melting temperatures are typically above 1000℃, melting the waste to further remove residual organic matter, but this can be adjusted according to the actual waste being treated. When using high-temperature melting furnaces to treat hazardous waste, which contains a large amount of organic matter, syngas (CO and H2) will be generated after high-temperature treatment. Syngas leakage poses a safety risk, and the high-temperature melting furnace operates under negative pressure; if a large amount of air enters the furnace, it may also cause an explosion risk. Therefore, the requirements for its sealing performance have increased significantly, and traditional feeding devices cannot meet this requirement. Thus, a high-temperature melting furnace feeding device with high sealing performance needs to be invented. Furthermore, uneven material distribution can easily lead to localized burn-through, causing the temperature of the localized gas phase space in the high-temperature melting furnace to rise, increasing heat dissipation and thus energy consumption. Utility Model Content

[0003] The purpose of this invention is to provide a sealing cloth device for a high-temperature melting furnace, so as to at least partially solve the above-mentioned problems of the prior art.

[0004] To achieve the above objectives, this utility model provides a sealing and feeding device for a high-temperature melting furnace, characterized in that it includes a feeding bin, a discharge bin, a telescopic structure, a liftable support structure, an elastic sealing structure, and a pusher plate; wherein,

[0005] The discharge bin is located below the feed bin and is used to receive the material provided by the feed bin. One side of the discharge bin includes an elastic sealing structure, and the other side is connected to a high-temperature melting furnace.

[0006] One end of the retractable structure is located outside the material discharge bin and connected to the liftable support structure, while the other end passes through the elastic sealing structure and is connected to the pusher plate located inside the material discharge bin, so as to realize the up and down movement of the pusher plate and the reciprocating expansion and contraction between the material discharge bin and the high-temperature melting furnace.

[0007] The elastic sealing structure is used to maintain the seal of the discharge bin when the telescopic structure moves up and down;

[0008] The pusher plate is used to push the material in the discharge bin onto the heating surface in the high-temperature melting furnace.

[0009] Furthermore, the elastic sealing structure includes an elastic sealing element and a mounting plate, wherein the elastic sealing element is mounted on the side wall of the discharge hopper via the mounting plate; the telescopic structure passes through the elastic sealing element and the mounting plate and is securely connected to the elastic sealing element.

[0010] Furthermore, the elastic sealing structure is made of flexible materials, including aluminum folding plates or high-temperature resistant skin.

[0011] Furthermore, the bottom of the discharge bin is flat, the pusher plate is a flat plate structure, the lower edge of the pusher plate contacts the bottom of the discharge bin, and the width of the pusher plate is the same as the width of the bottom of the discharge bin.

[0012] Furthermore, the telescopic structure includes an outer cylinder tube and an inner cylinder rod. One end of the outer cylinder tube is connected to the liftable support structure, and the other end passes through the elastic sealing structure. One end of the inner cylinder rod is installed inside the outer cylinder tube, and the other end extends out of the outer cylinder tube and is connected to the pusher plate. The extension and retraction of the pusher plate is controlled by the extension and retraction of the inner cylinder rod.

[0013] Furthermore, it also includes a dust cover, which is disposed on the outer sleeve of the cylinder for extending out of the inner rod of the cylinder.

[0014] Furthermore, the retractable structure is equipped with a near-end limit switch and a far-end limit switch to limit the retraction distance of the pusher plate.

[0015] Furthermore, the liftable support structure is equipped with a high-point limit switch and a low-point limit switch to limit the lifting space of the pusher plate.

[0016] Furthermore, the liftable support structure also includes an adjustment bracket, and the telescopic structure is disposed on the adjustment bracket. The adjustment bracket is used to enable the telescopic structure to move in a horizontal direction perpendicular to the telescopic direction, so as to adjust the relative position of the pusher plate, the discharge bin, and the heated surface; the elastic sealing structure is used to maintain the seal of the discharge bin when the telescopic structure moves horizontally.

[0017] Furthermore, it also includes a controller, which calculates the termination point of the pusher plate based on the single feeding amount, the width of the heated surface, and the distance between the heated surface and the lower edge of the pusher plate, and sends the position information of the termination point to the control device of the telescopic structure; the control device of the telescopic structure adjusts the position of the termination point of the pusher plate according to the position information of the termination point.

[0018] Furthermore, it also includes a controller for calculating the distance between the lower edge of the pusher plate and the heated surface based on the heated surface area and the amount of material dropped in a single operation, and sending the distance information to the control device of the liftable support structure; the control device of the liftable support structure adjusts the height of the lower edge of the pusher plate according to the distance information.

[0019] Compared with the prior art, the present invention has at least the following advantages:

[0020] 1. The high-temperature melting furnace feeding device of this utility model can meet the requirements of high sealing when treating hazardous waste, prevent the leakage of synthesis gases such as carbon monoxide, and also prevent a large amount of external air from entering the furnace and causing the risk of explosion, thus ensuring the safe and stable operation of the high-temperature melting furnace.

[0021] 2. The high-temperature melting furnace material feeding device in this utility model can significantly reduce energy consumption. On the one hand, the high sealing performance helps to prevent the hot flue gas inside the furnace from overflowing and losing heat. On the other hand, the material feeding using the pusher plate helps to improve the uniformity of the material feeding, preventing the temperature of the local gas phase space inside the high-temperature melting furnace from rising due to local burn-through, thereby reducing heat dissipation and achieving the purpose of reducing energy consumption.

[0022] 3. In this utility model, the pusher plate enters the high-temperature melting furnace intermittently, which greatly reduces the time the pusher plate is in the high-temperature melting furnace, effectively reducing the risk of high-temperature ablation and corrosion, thereby increasing the life of the material feeding device and reducing production costs. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the high-temperature melting furnace sealing and feeding device provided in Embodiment 1 of this utility model.

[0024] Figure 2 This is a schematic diagram of the high-temperature melting furnace sealing material method provided in Embodiment 5 of this utility model.

[0025] Figure label:

[0026] 1. Feeding bin; 2. Discharge bin; 3. Telescopic structure; 4. Liftable support structure; 5. Elastic sealing structure; 6. Pusher plate; 7. Material; 8. High-temperature melting furnace; 9. Heating surface; 10. Mounting flange; 11. Hydraulic pump station; 31. Cylinder outer sleeve; 32. Cylinder inner rod; 33. Dustproof sleeve; 51. Elastic seal; 52. Mounting plate; 53. Mounting sleeve. Detailed Implementation

[0027] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0028] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate to understand the embodiments of the utility model described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a product or device comprising a series of units is not necessarily limited to those explicitly listed, but may include other units not explicitly listed or inherent to such product or device.

[0029] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0030] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0031] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0032] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0033] Example 1

[0034] Embodiment 1 of this utility model provides a sealing cloth device for a high-temperature melting furnace, referencing... Figure 1 As shown, the system includes a feeding bin 1, a discharge bin 2, a telescopic structure 3, a liftable support structure 4, an elastic sealing structure 5, and a pusher plate 6. The discharge bin 2 is located below the feeding bin 1 and receives the material 7 supplied by the feeding bin 1. One side of the discharge bin 2 includes the elastic sealing structure 5, and the other side is connected to the high-temperature melting furnace 8. One end of the telescopic structure 3 is located outside the discharge bin 2 and connected to the liftable support structure 4. The other end passes through the elastic sealing structure 5 and connects to the pusher plate 6 located inside the discharge bin 2, enabling the pusher plate 6 to move up and down and reciprocate between the discharge bin 2 and the high-temperature melting furnace 8. The elastic sealing structure 5 maintains the seal of the discharge bin 2 when the telescopic structure 3 moves up and down. The pusher plate 6 pushes the material 7 from the discharge bin 2 onto the heated surface 9 inside the high-temperature melting furnace 8.

[0035] Feed hopper 1 is a mature system structure, typically including a material level detection system, a feeder, a weighing system, etc. (not shown in the figure), which can realize timed and quantitative feeding. Discharge hopper 2 is located below feed hopper 1 and is connected to feed hopper 1, used to receive material 7 supplied by feed hopper 1. Feed hopper 1 and discharge hopper 2 can be connected by welding.

[0036] The elastic sealing structure 5 on one side of the material discharge hopper 2 includes an elastic sealing element 51 and a mounting plate 52. The elastic sealing element 51 is mounted on the side wall of the material discharge hopper 2 via the mounting plate 52. A screw hole is provided at the connection point between the elastic sealing element 51 and the mounting plate 52, and screws are used for fastening. The mounting plate 52 and the material discharge hopper 2 can be connected by screw fastening or sealing welding. The telescopic structure 3 passes through the elastic sealing element 51 and the mounting plate 52, and is fastened to the elastic sealing element 51 via a mounting sleeve 53. An opening is provided in the middle of the mounting plate 52 to allow for the vertical movement of the telescopic structure 3. The elastic sealing structure 5 in this embodiment saves material costs, and if the elastic sealing element 51 experiences wear or other problems after a period of use, it is easy to replace.

[0037] In other embodiments, the elastic sealing structure 5 can be an integral elastic structure that is fixedly connected to the discharge bin 2, or the elastic sealing element 51 can penetrate the middle of the mounting plate 52.

[0038] The resilient seal 51 is made of flexible material, preferably aluminum folded plate or high-temperature resistant skin, which is more durable and helps to reduce costs.

[0039] The other side of the discharge bin 2 is connected to the high-temperature melting furnace 8. The furnace wall of the high-temperature melting furnace 8 has embedded steel plates and studs. The discharge bin 2 is connected to the embedded steel plates in the furnace wall via a mounting flange 10 and embedded studs for easy disassembly. Preferably, a sealing gasket is provided at the contact surface between the mounting flange 10 and the embedded studs to improve the sealing effect. In other embodiments, the discharge bin 2 and the furnace wall of the high-temperature melting furnace 8 can also be connected by a sealing weld.

[0040] In this embodiment, the bottom of the material feeding bin 2 is flat, and the pusher plate 6 is a flat plate structure. The lower edge of the pusher plate 6 contacts the bottom of the material feeding bin 2, and the width of the pusher plate 6 is the same as the width of the bottom of the material feeding bin 2. This allows the material 7 to be pushed onto the heating surface 9 inside the high-temperature melting furnace 8 more efficiently, improving the uniformity of the material distribution.

[0041] In this embodiment, the telescopic structure 3 includes a cylinder outer sleeve 31 and a cylinder inner rod 32. One end of the cylinder outer sleeve 31 is installed above the liftable support structure 4, and the other end passes through the openings in the elastic seal 51 and the mounting plate 52, and is fastened to the elastic seal 51 by a mounting sleeve 53. The mounting sleeve 53 and the elastic seal 51 can be fastened together with bolts. One end of the cylinder inner rod 32 is installed inside the cylinder outer sleeve 31, and the other end extends out of the cylinder outer sleeve 31, and is bolted to the pusher plate 6, with spot welding to prevent the nut from loosening. The extension and retraction of the pusher plate 6 is controlled by the extension and retraction of the cylinder inner rod 32.

[0042] A dust cover 33 is welded to one end of the cylinder outer sleeve 31 that extends out of the cylinder inner rod 32 to prevent material 7 from entering the annular gap between the cylinder inner rod 32 and the cylinder outer sleeve 31. A near-end limit switch and a far-end limit switch (not shown in the figure) are provided on the cylinder inner rod 32 to limit the extension and retraction distance of the pusher plate 6.

[0043] In this embodiment, one set of retractable structure 3 is provided. In other embodiments, two or more sets can be provided as needed to enhance the ease of movement and sensitivity of retractable structure 3.

[0044] The liftable support structure 4 is equipped with a high-point limit switch and a low-point limit switch (not shown in the figure) to limit the lifting space of the pusher plate 6. In one embodiment, the liftable support structure 4 includes a scissor lift platform. The scissor lift platform is stable in lifting and can ensure the straightness of its lifting; other lifting platforms can theoretically meet the requirements, such as screw lift platforms.

[0045] In this embodiment, the telescopic structure 3 and the liftable support platform 4 are driven by a hydraulic pump station 11. The advantage of using a hydraulic cylinder is stable control, and the hydraulic oil can absorb the heat from the rod 32 inside the cylinder, thus providing cooling. In other embodiments, electric or pneumatic drive methods can also be used; the telescopic structure 3 can be either an electric telescopic rod or a pneumatic telescopic rod.

[0046] By adopting the solution provided in this embodiment of the invention, the requirement for high sealing performance can be met when treating hazardous waste, preventing the leakage of synthesis gases such as carbon monoxide and preventing the risk of explosion caused by a large amount of external air entering the furnace, thus ensuring the safe and stable operation of the high-temperature melting furnace. The solution provided in this embodiment of the invention can significantly reduce energy consumption. On the one hand, the high sealing performance helps prevent the overflow of hot flue gas from the furnace, resulting in heat loss. On the other hand, the use of a pusher plate for material distribution helps improve the uniformity of material distribution, preventing localized burn-through and subsequent temperature increases in the local gas phase space within the high-temperature melting furnace, thereby reducing heat dissipation and achieving the goal of reducing energy consumption. In the technical solution of this embodiment of the invention, the pusher plate enters the high-temperature melting furnace intermittently, significantly reducing the time the pusher plate is in the furnace, effectively reducing the risk of high-temperature ablation and corrosion, thereby increasing the lifespan of the material distribution device and reducing production costs.

[0047] Example 2

[0048] Embodiment 2 of this utility model provides a sealing cloth device for a high-temperature melting furnace, referencing... Figure 1 As shown, the system includes a feeding bin 1, a discharge bin 2, a telescopic structure 3, a liftable support structure 4, an elastic sealing structure 5, and a pusher plate 6. The discharge bin 2 is located below the feeding bin 1 and receives the material 7 supplied by the feeding bin 1. One side of the discharge bin 2 includes the elastic sealing structure 5, and the other side is connected to the high-temperature melting furnace 8. One end of the telescopic structure 3 is located outside the discharge bin 2 and connected to the liftable support structure 4. The other end passes through the elastic sealing structure 5 and connects to the pusher plate 6 located inside the discharge bin 2, enabling the pusher plate 6 to move up and down and reciprocate between the discharge bin 2 and the high-temperature melting furnace 8. The elastic sealing structure 5 maintains the seal of the discharge bin 2 when the telescopic structure 3 moves up and down. The pusher plate 6 pushes the material 7 from the discharge bin 2 onto the heated surface 9 inside the high-temperature melting furnace 8.

[0049] The difference between this embodiment and Embodiment 1 is that the high-temperature melting furnace sealing material distribution device also includes a controller (not shown in the figure). This controller is used to calculate the termination point of the pusher plate 6 based on the single feeding amount, the width of the heating surface 9, and the distance between the heating surface 9 and the lower edge of the pusher plate 6, and sends the position information of the termination point to the control device of the telescopic structure 3. The control device of the telescopic structure 3 adjusts the termination point position of the pusher plate 6 according to the position information of the termination point. By setting the controller, the telescopic distance of the pusher plate 6 can be automatically controlled, improving work efficiency and accuracy.

[0050] The specific structures and limitations of the feeding bin 1, the dropping bin 2, the telescopic structure 3, the liftable support structure 4, the elastic sealing structure 5, and the pusher plate 6 in this embodiment can be referred to in Embodiment 1, and will not be repeated here.

[0051] Example 3

[0052] Embodiment 3 of this utility model provides a sealing cloth device for a high-temperature melting furnace, see reference. Figure 1 As shown, the system includes a feeding bin 1, a discharge bin 2, a telescopic structure 3, a liftable support structure 4, an elastic sealing structure 5, and a pusher plate 6. The discharge bin 2 is located below the feeding bin 1 and receives the material 7 supplied by the feeding bin 1. One side of the discharge bin 2 includes the elastic sealing structure 5, and the other side is connected to the high-temperature melting furnace 8. One end of the telescopic structure 3 is located outside the discharge bin 2 and connected to the liftable support structure 4. The other end passes through the elastic sealing structure 5 and connects to the pusher plate 6 located inside the discharge bin 2, enabling the pusher plate 6 to move up and down and reciprocate between the discharge bin 2 and the high-temperature melting furnace 8. The elastic sealing structure 5 maintains the seal of the discharge bin 2 when the telescopic structure 3 moves up and down. The pusher plate 6 pushes the material 7 from the discharge bin 2 onto the heated surface 9 inside the high-temperature melting furnace 8.

[0053] The difference between this embodiment and Embodiment 1 is that it also includes a controller (not shown in the figure). This controller is used to calculate the distance between the lower edge of the pusher plate 6 and the heated surface 9 based on the area of ​​the heated surface 9 and the amount of material dropped in a single operation, and sends the distance information to the control device of the liftable support structure 4. The control device of the liftable support structure 4 adjusts the height of the lower edge of the pusher plate 6 according to the distance information. By setting the controller, the height of the lower edge of the pusher plate 6 can be automatically controlled, improving work efficiency and accuracy.

[0054] The specific structure and limitations of the feeding bin 1, the dropping bin 2, the telescopic structure 3, the liftable support structure 4, the elastic sealing structure 5, and the pusher plate 6 in this embodiment can be referred to in Embodiment 1, and will not be repeated here.

[0055] Example 4

[0056] Embodiment 4 of this utility model provides a sealing cloth device for a high-temperature melting furnace, see reference. Figure 1 As shown, the system includes a feeding bin 1, a discharge bin 2, a telescopic structure 3, a liftable support structure 4, an elastic sealing structure 5, and a pusher plate 6. The discharge bin 2 is located below the feeding bin 1 and receives the material 7 supplied by the feeding bin 1. One side of the discharge bin 2 includes the elastic sealing structure 5, and the other side is connected to the high-temperature melting furnace 8. One end of the telescopic structure 3 is located outside the discharge bin 2 and connected to the liftable support structure 4. The other end passes through the elastic sealing structure 5 and connects to the pusher plate 6 located inside the discharge bin 2, enabling the pusher plate 6 to move up and down and reciprocate between the discharge bin 2 and the high-temperature melting furnace 8. The elastic sealing structure 5 maintains the seal of the discharge bin 2 when the telescopic structure 3 moves up and down. The pusher plate 6 pushes the material 7 from the discharge bin 2 onto the heated surface 9 inside the high-temperature melting furnace 8.

[0057] The difference between this embodiment and Embodiment 1 is that the width of the pusher plate 6 is smaller than the width of the bottom of the discharge bin 2. The liftable support structure 4 also includes an adjustment bracket (not shown in the figure). The cylinder outer sleeve 31 is mounted on the adjustment bracket, which is used to move the cylinder outer sleeve 31 in a horizontal direction perpendicular to the extension direction. The elastic sealing structure 5 maintains the seal of the discharge bin 2 when the cylinder outer sleeve 31 moves horizontally. The structure of the adjustment bracket can be a combination of slide rails and sliders, or a combination of slide rails and pulleys. When the feeding amount is relatively large or the edge of the pusher plate 6 is worn, the material 7 can be pushed onto the heating surface 9 inside the high-temperature melting furnace 8 in stages, which helps to improve material utilization, save costs, and improve the uniformity of material distribution.

[0058] In a preferred embodiment of this invention, a controller (not shown in the figure) may be further included. This controller calculates the horizontal movement distance of the pusher plate 6 in the direction perpendicular to the extension / retraction direction based on the width of the bottom of the discharge bin 2 and the width of the pusher plate 6, and sends this distance information to the control device of the adjusting bracket. The control device of the adjusting bracket adjusts the horizontal movement distance of the cylinder outer sleeve 31 in the direction perpendicular to the extension / retraction direction based on the distance information, thereby adjusting the relative position between the pusher plate 6, the discharge bin 2, and the heated surface 9. The elastic sealing structure 5 maintains the seal of the discharge bin 2 when the cylinder outer sleeve 31 moves horizontally. By setting the controller, automated control of the movement distance of the cylinder outer sleeve 31 by the adjusting bracket can be achieved, improving work efficiency and accuracy.

[0059] The specific structures and limitations of the feeding bin 1, the dropping bin 2, the telescopic structure 3, the liftable support structure 4, the elastic sealing structure 5, and the pusher plate 6 in this embodiment can be referred to in Embodiment 1, and will not be repeated here.

[0060] Example 5

[0061] This utility model also provides a method for sealing the fabric in a high-temperature melting furnace, such as... Figure 2 As shown, it includes:

[0062] Step 201: Receive the material supplied to the silo through the discharge hopper;

[0063] Step 202: Control the height position of the telescopic structure through the liftable support structure;

[0064] Step 203: The pusher plate is reciprocated by the retractable structure to push the material in the discharge bin to the heating surface in the high-temperature melting furnace.

[0065] In step 202, controlling the height position of the retractable structure through the liftable support structure includes: when the height position of the retractable structure is appropriate, the height of the retractable structure is not adjusted.

[0066] In one specific embodiment, the specific process of steps 202 and 203 may include: pushing the material in the discharge bin onto the heating surface in the high-temperature melting furnace by a pusher plate driven by a retractable structure; raising the pusher plate to a preset height by a liftable support structure; retracting the pusher plate back into the discharge bin by a retractable structure; and finally lowering the pusher plate to the initial position by a liftable support structure. For example, the specific operation may include: the pusher plate 6 is in the initial position in the discharge bin 2; the material 7 is conveyed to the discharge bin 2 through the feeding bin 1; after a set time, the feeding bin 2 is closed; the inner rod 32 of the hydraulic cylinder is activated, and the pusher plate 6 pushes the material 7 in the discharge bin 2 onto the heating surface 9 in the high-temperature melting furnace 8; the liftable support structure 4 is activated, raising the pusher plate 6 to the preset height; the inner rod 32 of the hydraulic cylinder is activated, retracting the pusher plate 6; and then the liftable support structure 4 lowers the pusher plate 6 back to the initial position in the discharge bin 2.

[0067] In another specific embodiment, the specific process of steps 202 and 203 may further include: calculating the push-off termination point of the pusher plate based on the single feeding amount, the width of the heated surface, and the distance between the heated surface and the lower edge of the pusher plate; using a telescopic structure to drive the pusher plate to push the material 7 in the discharge bin onto the heated surface in the high-temperature melting furnace 8, and continuing to push it to the corresponding termination point; then using the telescopic structure to retract the pusher plate back to the initial position in the discharge bin. For example, the specific operation mode may be: the pusher plate 6 is in the initial position in the discharge bin 2; the material 7 is conveyed to the discharge bin 2 through the feeding bin 1; after a set time, the feeding bin 2 is closed; the push-off termination point of the pusher plate 6 is calculated based on the single feeding amount, the width of the heated surface 9, and the distance between the heated surface 9 and the lower edge of the pusher plate 6; the telescopic structure 3 is activated to push the pusher plate 6 to the corresponding termination point, and then using the telescopic structure 3 to retract the pusher plate 6 back to the initial position in the discharge bin 2. For details, please refer to the specific high-temperature melting furnace sealing and feeding device in Example 2, which will not be repeated here.

[0068] In another specific embodiment, the specific process of steps 202 and 203 may also include: calculating the distance between the lower edge of the pusher plate and the heated surface based on the single feeding amount and the heated surface area; using a telescopic structure to drive the pusher plate to push the material in the dropping bin onto the heated surface in the high-temperature melting furnace; using a liftable support structure to lower the pusher plate to the corresponding height; then using a telescopic structure to continue pushing the pusher plate to the preset distance; and finally using a telescopic structure to retract the pusher plate back to the initial position in the dropping bin. For example, the specific operation mode can be as follows: the pusher plate 6 is in the initial position in the discharge bin 2, the material 7 is conveyed to the discharge bin 2 through the feed bin 1, and the feed bin 2 is closed after a set time; the distance between the lower edge of the pusher plate 6 and the heated surface 9 is calculated based on the single feeding amount and the area of ​​the heated surface 9; the telescopic structure 3 is activated, and the pusher plate 6 pushes the material 7 in the discharge bin 2 to the heated surface in the high-temperature melting furnace 8; the lifting support structure 4 is activated, and the height of the lower edge of the pusher plate 6 is adjusted according to the calculated distance information; the telescopic structure 3 is activated, so that the pusher plate 6 continues to be pushed to the preset distance and then retracts; then the lifting support structure 4 is used to raise the pusher plate 6 to the initial height, and the telescopic structure 3 is used to retract the pusher plate 6 to the initial position in the discharge bin 2. For details, please refer to the specific high-temperature melting furnace sealing material distribution device in Embodiment 3, which will not be repeated here.

[0069] In another specific embodiment, the expandable structure is moved in a horizontal direction perpendicular to the expansion direction by adjusting the bracket, thereby driving the pusher plate to move in a horizontal direction perpendicular to the expansion direction. For details, please refer to the specific high-temperature melting furnace sealing and feeding device in Embodiment 4, which will not be repeated here.

[0070] By adopting the solution provided in this embodiment of the invention, the requirement for high sealing performance can be met when treating hazardous waste, preventing the leakage of synthesis gases such as carbon monoxide and preventing the risk of explosion caused by a large amount of external air entering the furnace, thus ensuring the safe and stable operation of the high-temperature melting furnace. The solution provided in this embodiment of the invention can significantly reduce energy consumption. On the one hand, high sealing performance helps prevent the overflow of hot flue gas from the furnace, resulting in heat loss. On the other hand, using a pusher plate for material distribution helps improve the uniformity of material distribution, preventing localized burn-through and subsequent temperature increases in the local gas phase space within the high-temperature melting furnace, thereby reducing heat dissipation and achieving the goal of reducing energy consumption. In the technical solution of this embodiment of the invention, the pusher plate enters the high-temperature melting furnace intermittently, significantly reducing the time the pusher plate is in the furnace, effectively reducing the risk of high-temperature ablation and corrosion, thereby increasing the lifespan of the material distribution device and reducing production costs.

[0071] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Those skilled in the art should understand that modifications can be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A sealing and fabric-laying device for a high-temperature melting furnace, characterized in that: This includes a feeding hopper, a discharge hopper, a telescopic structure, a liftable support structure, a flexible sealing structure, and a pusher plate; among which, The discharge bin is located below the feed bin and is used to receive the material provided by the feed bin. One side of the discharge bin includes an elastic sealing structure, and the other side is connected to a high-temperature melting furnace. One end of the retractable structure is located outside the material discharge bin and connected to the liftable support structure, while the other end passes through the elastic sealing structure and is connected to the pusher plate located inside the material discharge bin, so as to realize the up and down movement of the pusher plate and the reciprocating expansion and contraction between the material discharge bin and the high-temperature melting furnace. The elastic sealing structure is used to maintain the seal of the discharge bin when the telescopic structure moves up and down; The pusher plate is used to push the material in the discharge bin onto the heating surface in the high-temperature melting furnace.

2. The sealing and feeding device for a high-temperature melting furnace according to claim 1, characterized in that: The elastic sealing structure includes an elastic sealing element and a mounting plate. The elastic sealing element is mounted on the side wall of the material discharge hopper via the mounting plate. The telescopic structure passes through the elastic sealing element and the mounting plate and is fastened to the elastic sealing element.

3. The sealing and feeding device for a high-temperature melting furnace according to claim 1, characterized in that: The elastic sealing structure uses flexible materials, including aluminum folding plates or high-temperature resistant skin.

4. The sealing and feeding device for a high-temperature melting furnace according to claim 1, characterized in that: The bottom of the material discharge bin is flat, and the pusher plate is a flat plate structure. The lower edge of the pusher plate contacts the bottom of the material discharge bin, and the width of the pusher plate is the same as the width of the bottom of the material discharge bin.

5. The sealing and feeding device for a high-temperature melting furnace according to claim 1, characterized in that: The telescopic structure includes an outer sleeve of the cylinder and an inner rod of the cylinder. One end of the outer sleeve of the cylinder is connected to the liftable support structure, and the other end passes through the elastic sealing structure. One end of the inner rod of the cylinder is installed inside the outer sleeve of the cylinder, and the other end extends out of the outer sleeve of the cylinder and is connected to the pusher plate. The extension and retraction of the pusher plate is controlled by the extension and retraction of the inner rod of the cylinder.

6. The sealing and feeding device for a high-temperature melting furnace according to claim 5, characterized in that: It also includes a dust cover, which is disposed on the outer sleeve of the cylinder for extending out of the inner rod of the cylinder.

7. The sealing and feeding device for a high-temperature melting furnace according to claim 1, characterized in that: The retractable structure is equipped with a near-end limit switch and a far-end limit switch to limit the retraction distance of the pusher plate.

8. The sealing and feeding device for a high-temperature melting furnace according to claim 1, characterized in that: The liftable support structure is equipped with a high-point limit switch and a low-point limit switch to limit the lifting space of the pusher plate.

9. A high-temperature melting furnace sealing and feeding device according to claim 1, characterized in that: The liftable support structure also includes an adjustment bracket, and the telescopic structure is mounted on the adjustment bracket. The adjustment bracket is used to enable the telescopic structure to move in a horizontal direction perpendicular to the telescopic direction, so as to adjust the relative position of the pusher plate, the discharge bin, and the heated surface. The elastic sealing structure is used to maintain the seal of the discharge bin when the telescopic structure moves horizontally.

10. A high-temperature melting furnace sealing and feeding device according to any one of claims 1-9, characterized in that: It also includes a controller, which calculates the termination point of the pusher plate based on the single feeding amount, the width of the heated surface, and the distance between the heated surface and the lower edge of the pusher plate, and sends the position information of the termination point to the control device of the telescopic structure; the control device of the telescopic structure adjusts the position of the termination point of the pusher plate according to the position information of the termination point.

11. A high-temperature melting furnace sealing and feeding device according to any one of claims 1-9, characterized in that: It also includes a controller for calculating the distance between the lower edge of the pusher plate and the heated surface based on the heated surface area and the amount of material dropped in a single operation, and sending the distance information to the control device of the liftable support structure; the control device of the liftable support structure adjusts the height of the lower edge of the pusher plate according to the distance information.

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