Material processing device based on multi-hearth furnace

Abstract

The utility model provides a material processing device based on a multi-hearth furnace, which is characterized in that a furnace body is internally provided with a plurality of layers of furnace beds and a middle shaft vertically penetrating through the middle of the furnace body, the middle shaft is fixedly connected with stirring arms, the stirring arms are hung on each layer of furnace bed, and the middle shaft is movably and hermetically connected with the rotating part of the furnace body; the middle shaft can be driven to rotate by a driver arranged below the furnace body; wherein the top of the furnace body is provided with a feeding pipe and a smoke outlet, the feeding pipe and the smoke outlet are arranged on the two opposite sides of the middle shaft, and the feeding pipe further extends into the furnace body. According to the material processing device based on the multi-hearth furnace, the feeding pipe extends into the furnace body, the distance from the outlet position where materials enter the furnace to the smoke outlet can be effectively increased, the probability that the materials are directly taken out by airflow is reduced, the effective feeding rate of the materials is increased, and the service life of the materials is prolonged. The material recovery rate of the material treatment device based on the multi-hearth furnace is improved, the material loss is reduced, the energy consumption of subsequent procedures is reduced, and secondary pollution is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to multi -chamber furnace technical field especially relates to a material processing device based on multi -chamber furnace. BACKGROUND

[0002] Multi -chamber furnace, also known as multi -stage furnace or mechanical furnace, is a kind of multi -chamber incinerator with mechanical transmission device. It is initially applied to the calcination of pyrite in chemical industry, and has been widely applied to the incineration treatment of sludge, garbage and the like, and can also be used for the purification and recycling of materials and the like.

[0003] Among them, various reactions or processes in incineration and purification and recycling treatment can produce a large amount of waste gas, especially the multi -chamber furnace with large volume, and the exhaust port flow is large, and in the prior art, the feed inlet and the exhaust port are arranged at the top of the multi -chamber furnace, and in the process that the material falls from the feed inlet to the hearth, part of the small particles in the material can be directly sent out by the exhaust gas flow and the incineration gas flow, and cannot effectively enter each layer of the multi -chamber furnace, and cannot effectively participate in the process reaction of each layer of the multi -layer hearth, affecting the processing efficiency. UTILITY MODEL CONTENT

[0004] Therefore, the utility model provides a kind of material processing device based on multi -chamber furnace to solve the problem that part of the small particles in the feed of multi -chamber furnace in prior art can be directly sent out by exhaust gas flow and incineration gas flow, cannot effectively enter furnace and participate in multi -layer process reaction, affect processing efficiency.

[0005] The utility model provides a kind of material processing device based on multi -chamber furnace, it include: furnace body, be provided with multiple hearths and vertical through the middle of furnace body middle axle in the furnace body, fixedly connected with stirring arm on the middle axle, the stirring arm is hung and is installed on each layer of the multiple hearths, the middle axle is rotatably and movably sealed with the furnace body, the drive is provided below the furnace body, the drive is transmission connection with the middle axle, wherein,

[0006] The top of the furnace body is provided with feed pipe and smoke outlet, the feed pipe and the smoke outlet are arranged on the opposite sides of the middle axle, and the feed pipe is further extended to the inside of the furnace body.

[0007] Optionally, the length of the feed pipe extending to the furnace body is greater than or equal to 1 meter, and the distance between the end of the feed pipe and the top layer of the multiple hearths is 0.6-0.9 meters.

[0008] Optionally, the distance between the top surface of the furnace body and the top layer of the multiple hearths is 1.6-2.5 meters.

[0009] Optionally, the end of the feed pipe is deflected and arranged to the side wall of the furnace body.

[0010] Optionally, the exhaust port is further provided with a baffle extending into the furnace body, and the baffle faces the feeding pipe.

[0011] Optionally, projections of the feeding pipe and the exhaust port on the top surface of the furnace body are located on a radial line of the top surface of the furnace body.

[0012] Optionally, a distance between a central axis of the feeding pipe and a near point of the inner side wall of the furnace body is 0.35-0.55 meters.

[0013] Optionally, a distance between a center of the exhaust port and the near point of the inner side wall of the furnace body is 0.55-0.75 meters.

[0014] Optionally, a distance between the feeding pipe and the near point of the inner side wall of the furnace body is 0.25-0.45 meters.

[0015] Optionally, the central axis is a hollow structure to form a cooling air duct, and the top of the furnace body is further provided with a central axis cooling air outlet, and the cooling air duct is communicated to the central axis cooling air outlet.

[0016] The material processing device based on the multi-chamber furnace provided by the utility model comprises a furnace body, a plurality of layers of furnace beds and a central axis vertically penetrating the middle of the furnace body are arranged in the furnace body, a stirring arm is fixedly connected to the central axis, the stirring arm is suspended and installed on each layer of furnace bed, the central axis is in rotatable and movable sealing connection with the furnace body, a driver is arranged below the furnace body, the driver is in transmission connection with the central axis, the stirring arm is driven to rotate to overturn the material on the furnace bed, and the reaction efficiency is ensured and improved; wherein the top of the furnace body is provided with a feeding pipe and an exhaust port, the feeding pipe and the exhaust port are arranged on opposite sides of the central axis, the feeding pipe further extends into the furnace body, the distance between the outlet position of the material into the furnace and the exhaust port can be increased, the travel distance of the smaller particles in the material in the furnace is increased, the smaller particle material carried out by the airflow can also be effectively put into the furnace to participate in the reaction in the furnace, the material entering rate is ensured, the farther the distance from the exhaust port is, the smaller the airflow velocity is, the probability of the smaller particles in the material carried out by the airflow can be further reduced, and the material entering rate is further ensured. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 FIG. 1 is a main structure schematic view of the material processing device based on the multi-chamber furnace in the utility model embodiment.

[0018] The following detailed description will further explain the present application with reference to the above mentioned drawings. DETAILED DESCRIPTION

[0019] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The drawings show several embodiments of the present application. However, the present application can be realized in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0020] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can be a middle element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there can be a middle element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terminology used in the description of the present application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0022] To solve the problem that part of small particles in the feed of the multi-chamber furnace are easily sent out by the exhaust gas flow and the incineration gas flow directly, cannot effectively participate in the process treatment, and affect the material recovery efficiency. The present application provides a material processing device based on a multi-chamber furnace, which is provided with a feed pipe and a smoke exhaust port at the top of the furnace body, the feed pipe and the smoke exhaust port are arranged on the opposite sides of the central shaft, and the feed pipe also extends into the furnace body, which can increase the distance from the outlet position of the material into the furnace to the smoke exhaust port, increase the travel of the small particles in the material in the furnace, and also reduce the probability of the small particles in the material being carried out by the gas flow, increase the effective furnace entry rate of the material, improve the material recovery rate of the material processing device based on the multi-chamber furnace, and reduce the probability of the material being discharged from the smoke exhaust port without effective furnace reaction, the probability of not being able to enter the subsequent process to be further incinerated into waste gas, thereby reducing the material loss, reducing the energy consumption of the subsequent process, and reducing secondary pollution.

[0023] Specifically, please refer to Figure 1 , which is a main structure schematic diagram of the material processing device based on the multi-chamber furnace in the embodiment of the present application, mainly a longitudinal cross-sectional structure schematic.

[0024] The multi-chamber furnace based material processing device of the embodiment comprises a furnace body 10, a plurality of layers of furnace beds 11 and a central shaft 12 vertically penetrating the middle of the furnace body are arranged in the furnace body 10, the central shaft 12 is fixedly connected with stirring arms (not shown in the figure), the stirring arms are suspendedly installed on each layer of furnace beds, the stirring arms are mainly in the structure of tines, and the specific specifications of the tines can be adaptively selected according to the specific structure of the furnace bed and the specific requirements of stirring, the central shaft 12 is rotatably and movably sealingly connected with the furnace body 10, so as to drive the stirring arms to move when rotating, a driver 31 is arranged below the furnace body 10, the driver 31 is in transmission connection with the central shaft 12, and the central shaft 12 is used for driving the central shaft 12 to rotate, a plurality of burner nozzles 13 are arranged on the side wall of the furnace body 10, and the burner nozzles 13 are used for ignition and provision of combustion-supporting agents. The number of layers of the plurality of layers of furnace beds 11 is specifically arranged according to specific requirements, and the specific arrangement positions and the specific number of the burner nozzles 13 are related to the number of the furnace beds of the multi-chamber furnace based material processing device and the specific functional requirements of each layer area, and the application does not specially limit this.

[0025] Since each layer of furnace bed of the multi-chamber furnace based material processing device needs a certain reaction space, the whole is relatively high, and a support platform is further arranged on the outer side wall of the furnace body 10 for supporting the maintenance personnel and equipment during maintenance.

[0026] The top of the furnace body 10 is provided with a feeding pipe 21 and a smoke exhaust port 22, and the bottom is provided with a discharge pipe 24, the feeding pipe 21 and the smoke exhaust port 22 are arranged on the opposite sides of the central shaft 12, so as to be arranged at a certain distance, and the feeding pipe 21 further extends into the inside of the furnace body 10, so that the position of the discharge port of the feeding pipe 21 is arranged away from the smoke exhaust port 22, the airflow flow rate at the discharge port of the feeding pipe 21 is reduced, and the probability that the smaller particles in the material are directly sent to the smoke exhaust port by the airflow and cannot effectively participate in the reaction in the furnace is reduced.

[0027] The diameter of the furnace body 10 is generally 3-5 meters, and the height is more than 3 meters, and the specific requirements are specifically set according to the processing capacity and the specific requirements of the layer structure.

[0028] In order to guarantee the lengthening effect of the distance from the position of the discharge port of the feeding pipe 21 to the smoke exhaust port 22, in the embodiment, the length of the feeding pipe 21 extending into the furnace body 10 is greater than or equal to 1 meter, and in order to guarantee the movement space of the stirring arms, the distance between the end of the feeding pipe 21 and the top layer of the plurality of layers of furnace beds 11 is 0.6-0.9 meters.

[0029] In order to guarantee that the multi-chamber furnace based material processing device has a certain processing capacity, in the embodiment, the distance between the top surface of the furnace body 10 and the top layer of the plurality of layers of furnace beds 11 is 1.6-2.5 meters, and the specific requirements can be specifically selected according to the actual material processing capacity.

[0030] To further reduce the probability of the feed being carried away by the gas flow, in the embodiment, the end of the feed pipe 21 is arranged to be deflected towards the side wall of the furnace body 10, and the deflection direction is away from the smoke outlet 22. The movement speed of the feed in the direction away from the smoke outlet 22 can be further increased, the resistance to the exhaust gas flow can be improved, the probability of the lighter and smaller particles in the material being carried away by the gas flow can be further reduced, and the effective entry into the furnace reaction can be ensured.

[0031] To further reduce the influence of the gas flow speed on the feed, in the embodiment, a baffle 23 extending into the furnace body 10 is further arranged at the smoke outlet 22. The baffle 23 is arranged to face the feed pipe 21. The baffle 23 can block the gas flow of the feed pipe 21 to the smoke outlet 22, reduce the gas flow speed on this path, and further reduce the possibility of the feed being carried out by the high-speed gas flow.

[0032] And through the extension design of the feed pipe 21 and the arrangement of the baffle 23 at the smoke outlet 22, the movement path of the smaller particles in the material being carried away by the gas flow from the smoke outlet can be shifted downward, close to the discharge port area of the top layer of the multi-layer furnace bed 11, so that the material can be stirred into the next layer of the furnace bed by the rake before being taken away by the flue gas, and can effectively participate in the next step of the reaction in the furnace, improve the effectiveness of the entry into the furnace, and further improve the material recovery rate.

[0033] To facilitate the spacing design between the feed pipe 21 and the smoke outlet 22, in the embodiment, the projections of the feed pipe 21 and the smoke outlet 22 on the top surface of the furnace body are located on a diameter line on the top surface of the furnace body, which can provide maximum spacing design space.

[0034] To avoid the feed from being accumulated at the edge of the furnace body 10 and not effectively entering the furnace to participate in the reaction, in the embodiment, the closest point distance between the center axis of the feed pipe 21 and the inner side wall of the furnace body 10 is 0.35-0.55 meters. Further, the closest point distance between the feed pipe 21 and the inner side wall of the furnace body is 0.25-0.45 meters. By limiting the spacing between the center axis of the feed pipe 21 and the pipe wall and the inner side wall of the furnace body 10, the accumulation of the feed at the edge of the furnace body 10 can be effectively avoided, so that the feed can be effectively dispersed by the stirring arm, thereby ensuring that the material entering the furnace can effectively participate in the reaction in the furnace, ensuring the reaction efficiency, and reducing the influence of the deflection of the end of the feed pipe 21 towards the side wall of the furnace body 10 on the discharge accumulation point.

[0035] To ensure the smoke exhaust efficiency, in the embodiment, the closest point distance between the center of the smoke outlet 22 and the inner side wall of the furnace body 10 is 0.55-0.75 meters, and the diameter of the smoke outlet 22 needs to be specifically set according to the specific design pressure of the multi-chamber furnace-based material handling device.

[0036] To ensure the operation reliability of the central shaft, in the embodiment, the central shaft 12 is a hollow structure to form a cooling air duct, and the top of the furnace body 10 is further provided with a central shaft cooling air outlet 121, and the cooling air duct is communicated to the central shaft cooling air outlet 121, so that the central shaft 12 can be cooled by the air cooling system to avoid overheating of the central shaft 12 and affect the reliability of the movable assembly.

[0037] The material processing device based on the multi-chamber furnace provided by the utility model is provided with a feeding pipe and a smoke outlet on the top of the furnace body, the feeding pipe and the smoke outlet are arranged on the opposite sides of the central shaft, and the feeding pipe further extends into the furnace body, so that the distance from the outlet position of the material into the furnace to the smoke outlet can be increased, the travel distance of the smaller particles in the material in the furnace can be increased, the probability of the material being directly taken out by the airflow can be reduced, the effective furnace entry rate of the material can be increased, the recovery rate of the material processing device based on the multi-chamber furnace in processing the material can be improved, the probability of the material that is not effectively reacted in the furnace and cannot enter the subsequent process to be further burned into waste gas can be reduced, the material loss can be reduced, the energy consumption of the subsequent process can be reduced, secondary pollution can be reduced, and the environmental protection performance can be improved.

[0038] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the utility model. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0039] The above-described embodiments only express several specific implementation manners of the utility model, the description is more specific and detailed, but it cannot be understood as the limitation of the patent scope of the utility model. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the utility model, a number of modifications and improvements can be made, which belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent should be subject to the appended claims.

Claims

1. A material handling device based on a multi-hearth furnace, characterized in that, include: The furnace body includes multiple layers of hearths and a central shaft running vertically through the middle of the furnace body. Stirring arms are fixedly connected to the central shaft and suspended from each layer of the hearths. The central shaft is rotatably and sealingly connected to the furnace body. A driver is located below the furnace body and is drively connected to the central shaft. The top of the furnace body is provided with a feed pipe and a flue gas outlet, which are located on opposite sides of the central axis, and the feed pipe extends into the interior of the furnace body.

2. The material handling device based on a multi-hearth furnace according to claim 1, characterized in that, The feed pipe extends to the furnace body at a length of 1 meter or more, and the distance from the end of the feed pipe to the top layer of the multi-layer furnace bed is 0.6 meters to 0.9 meters.

3. The material handling device based on a multi-hearth furnace according to claim 2, characterized in that, The distance from the top surface of the furnace body to the top layer of the multi-layer hearth is 1.6 meters to 2.5 meters.

4. The material handling device based on a multi-hearth furnace according to claim 1, characterized in that, The end of the feed pipe is deflected toward the side wall of the furnace body.

5. The material handling device based on a multi-hearth furnace according to claim 1, characterized in that, The exhaust port is also provided with a baffle extending into the furnace body, and the baffle is positioned facing the feed pipe.

6. The material handling device based on a multi-hearth furnace according to claim 1, characterized in that, The projections of the feed pipe and the exhaust port on the top surface of the furnace body are located on a radial line of the top surface of the furnace body.

7. The material handling device based on a multi-hearth furnace according to claim 2, characterized in that, The distance between the central axis of the feed pipe and the nearest point on the inner side wall of the furnace body is 0.35 meters to 0.55 meters.

8. The material handling apparatus based on a multi-hearth furnace according to claim 2 or 7, characterized in that, The center of the flue gas outlet is 0.55 meters to 0.75 meters from the nearest point on the inner side wall of the furnace.

9. The material handling device based on a multi-hearth furnace according to claim 7, characterized in that, The distance from the feed pipe to the nearest point on the inner side wall of the furnace body is 0.25 meters to 0.45 meters.

10. The material handling device based on a multi-hearth furnace according to claim 1, characterized in that, The central axis has a hollow structure to form a cooling air duct, and the top of the furnace body is also provided with a central axis cooling air outlet, and the cooling air duct is connected to the central axis cooling air outlet.

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