Fuming furnace for treating solid waste

Abstract

The utility model discloses a fuming furnace for treating solid waste, which relates to the technical field of fuming furnaces and comprises a fuming furnace body, a plurality of uniformly distributed feeding tuyeres are horizontally and fixedly mounted in the lower end of the side wall of the fuming furnace body, and air pumps are arranged at the air inlet ends of the feeding tuyeres. A plurality of evenly-distributed rectangular grooves are formed in the inner side wall of the feeding air nozzle in the axial direction and the circumferential direction, rectangular blocks are arranged in the rectangular grooves, springs are arranged at the inner side ends of the rectangular blocks, and balls are rotatably arranged in the outer side ends of the rectangular blocks. Impact borne by the balls is buffered through the springs, meanwhile, the balls can rotate so that high-speed particle flow of pulverized coal can flow conveniently, abrasion is reduced, finally, the inner wall of the feeding tuyere is protected against abrasion, and the service life is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of fuming furnace technology, specifically a fuming furnace for treating solid waste. Background Technology

[0002] A fuming furnace is a device that blows a mixture of air and pulverized coal into solid waste slag, causing certain valuable metals in the slag to volatilize in the form of metals, oxides, or sulfides.

[0003] In the existing method, pulverized coal and air are blown into the furnace together through tuyeres. During this process, the tuyeres are subjected to severe wear and short lifespan due to the scouring of the high-speed flow of pulverized coal particles.

[0004] To address the above problems, this utility model provides a fumigation furnace for treating solid waste. Utility Model Content

[0005] The purpose of this utility model is to provide a fuming furnace for processing solid waste. By using springs to buffer the impact on the ball bearings, and allowing the ball bearings to rotate to facilitate the flow of high-speed pulverized coal particles, the wear is reduced, and the inner wall of the feed nozzle is protected from wear, thus extending its service life and solving the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a fuming furnace for treating solid waste, comprising a fuming furnace body, a plurality of uniformly distributed feed nozzles are horizontally fixedly installed on the lower end of the side wall of the fuming furnace body, an air pump is provided at the air inlet end of the feed nozzles, a plurality of uniformly distributed rectangular grooves are opened on the inner side wall of the feed nozzles along the axial direction and the circumferential direction, a rectangular block is provided inside the rectangular groove, a spring is provided on the inner end of the rectangular block, and a ball bearing is rotatably provided on the outer end of the rectangular block.

[0007] Furthermore, the outer side of the rectangular block is slidably connected to the inner side of the rectangular groove, and the spring is fastened between the inner end of the rectangular block and the bottom surface of the rectangular groove. A spherical groove is opened at the outer end of the rectangular block, and a ball is rolled and connected to the inner surface of the spherical groove.

[0008] Furthermore, in the initial state, part of the ball bearing structure is located outside the inner wall of the feed nozzle.

[0009] Furthermore, the air pump inlet is fixedly connected to an air inlet pipe, the air inlet of the air inlet pipe is connected to an external pulverized coal pipeline, the air inlet of the feed nozzle is fixedly connected to a branch pipe, the air inlet of several branch pipes is fixedly connected to an air outlet pipe, the air inlet of the air outlet pipe is fixedly connected to the air outlet of the air pump, and a solenoid valve is fixedly installed on each branch pipe.

[0010] Furthermore, the air outlet of the feed nozzle extends into the interior of the fuming furnace body.

[0011] Furthermore, the bottom of the air pump is fixedly mounted on the support surface via a mounting bracket.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] This utility model provides a fuming furnace for treating solid waste. An air pump blows pulverized coal and air into the furnace body through a feed nozzle, causing valuable metals in the slag to volatilize in the form of metals, oxides, or sulfides. During this process, the high-speed flow of pulverized coal particles scours the inner wall of the feed nozzle, compressing ball bearings. This compression causes rectangular blocks to move inwards into rectangular grooves, compressing springs that cushion and protect the ball bearings. The ball bearings can rotate to facilitate the flow of the high-speed pulverized coal particles without causing interference, while also protecting the outer surface of the ball bearings from impact and reducing wear. The purpose of this design is to cushion the impact on the ball bearings with springs, while allowing the ball bearings to rotate to facilitate the flow of the high-speed pulverized coal particles and reduce wear, ultimately protecting the inner wall of the feed nozzle from wear and extending its service life. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the branch pipe connection structure in this utility model;

[0016] Figure 3 This is a schematic diagram of the internal structure of the feed nozzle in this utility model;

[0017] Figure 4 This utility model Figure 3 Enlarged view of point A in the middle.

[0018] In the diagram: 1. Furnace body; 2. Air pump; 3. Branch pipe; 4. Feed nozzle; 5. Solenoid valve; 6. Rectangular groove; 7. Rectangular block; 8. Spring; 9. Spherical groove; 10. Ball bearing; 11. Air outlet pipe; 12. Air inlet pipe. Detailed Implementation

[0019] The technical solutions of the present utility model 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 utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] To address the issue of how to effectively protect against technical problems, such as Figure 1-4 As shown, the following preferred technical solutions are provided:

[0021] A fuming furnace for treating solid waste includes a furnace body 1. Several uniformly distributed feed nozzles 4 are horizontally fixedly installed inside the lower end of the side wall of the furnace body 1. An air pump 2 is provided at the air inlet end of the feed nozzles 4. Several uniformly distributed rectangular grooves 6 are opened along the axial direction and circumferential direction on the inner side wall of the feed nozzles 4. A rectangular block 7 is provided inside the rectangular groove 6. A spring 8 is provided at the inner end of the rectangular block 7. A ball bearing 10 is rotatably provided inside the outer end of the rectangular block 7.

[0022] Specifically, the air pump 2 blows pulverized coal and air together into the fuming furnace body 1 through the feed nozzle 4, causing valuable metals in the slag to volatilize in the form of metals, oxides, or sulfides. During this process, the high-speed flow of pulverized coal particles washes against the inner wall of the feed nozzle 4, squeezing the ball bearings 10. The ball bearings 10, under pressure, move the rectangular block 7 towards the inner side of the rectangular groove 6. The movement of the rectangular block 7 compresses the spring 8, which buffers and protects the ball bearings 10. Here, the ball bearings 10 can rotate to facilitate the flow of the high-speed pulverized coal particles without causing interference, while also protecting the outer surface of the ball bearings 10 from impact and reducing wear. The purpose of this design is to buffer the impact on the ball bearings 10 through the spring 8, while the rotatable ball bearings 10 facilitate the flow of the high-speed pulverized coal particles and reduce wear, ultimately protecting the inner wall of the feed nozzle 4 from wear and extending its service life.

[0023] Furthermore, such as Figure 3 and Figure 4 As shown, the following preferred technical solutions are provided:

[0024] The outer side of the rectangular block 7 is slidably connected to the inner side of the rectangular groove 6. The spring 8 is fastened between the inner end of the rectangular block 7 and the inner bottom surface of the rectangular groove 6. A spherical groove 9 is provided on the outer end of the rectangular block 7. The ball 10 is slidably connected to the inner surface of the spherical groove 9. The purpose of this design is to buffer the impact on the ball 10 through the spring 8. The ball 10 can rotate to reduce wear.

[0025] Furthermore, such as Figure 3 and Figure 4 As shown, the following preferred technical solutions are provided:

[0026] In the initial state, part of the structure of the ball bearing 10 is located outside the inner wall of the feed nozzle 4. The purpose of this design is to ensure the rationality of the structure.

[0027] Furthermore, such as Figure 1-4 As shown, the following preferred technical solutions are provided:

[0028] The air pump 2 is fixedly connected to the air inlet pipe 12, which is connected to the external pulverized coal pipeline. The air inlet of the feed nozzle 4 is fixedly connected to the branch pipe 3. The air inlets of several branch pipes 3 are fixedly connected to the air outlet pipe 11, which is fixedly connected to the air outlet of the air pump 2. Each branch pipe 3 is fixedly equipped with a solenoid valve 5. The purpose of this design is to divert the high-speed pulverized coal particle flow through multiple branch pipes 3, reduce the impact force, and extend the residence time of the pulverized coal airflow in the fuming furnace body 1 to ensure full reaction and avoid raw material waste. The branch pipes 3 are controlled to engage and disengage by the solenoid valves 5, and one or more solenoid valves 5 are controlled to open and close according to the actual airflow velocity.

[0029] Furthermore, such as Figure 1 As shown, the following preferred technical solutions are provided:

[0030] The air outlet of the feed nozzle 4 extends into the interior of the fuming furnace body 1. This design aims to ensure structural rationality.

[0031] Furthermore, such as Figure 1 As shown, the following preferred technical solutions are provided:

[0032] The bottom of the air pump 2 is fixedly mounted on the support surface by a mounting bracket. The purpose of this design is to fix the air pump 2 in place.

[0033] In summary: the air pump 2 blows pulverized coal and air together into the fuming furnace body 1 through the feed nozzle 4, causing valuable metals in the slag to volatilize in the form of metals, oxides, or sulfides. During this process, the high-speed flow of pulverized coal particles washes against the inner wall of the feed nozzle 4, squeezing the ball bearings 10. The compressed ball bearings 10 move the rectangular block 7 towards the inner side of the rectangular groove 6, compressing the spring 8. The spring 8 then buffers and protects the ball bearings 10. The ball bearings 10 can rotate to facilitate the flow of the high-speed pulverized coal particles without causing interference, while also protecting the outer surface of the ball bearings 10 from impact and reducing wear. The purpose of this design is to buffer the impact on the ball bearings 10 through the spring 8, while allowing the ball bearings 10 to rotate to facilitate the flow of the high-speed pulverized coal particles and reduce wear, ultimately protecting the inner wall of the feed nozzle 4 from wear and extending its service life.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fuming furnace for treating solid waste, comprising a furnace body (1), characterized in that: The lower side wall of the fuming furnace body (1) is horizontally fixed with several uniformly distributed feed nozzles (4). The air inlet end of the feed nozzle (4) is equipped with an air pump (2). The inner side wall of the feed nozzle (4) is provided with several uniformly distributed rectangular grooves (6) along the axial direction and circumferential direction. A rectangular block (7) is provided inside the rectangular groove (6). A spring (8) is provided on the inner end of the rectangular block (7). A ball bearing (10) is rotatably provided on the outer end of the rectangular block (7).

2. The fumigation furnace for treating solid waste according to claim 1, characterized in that: The rectangular block (7) is slidably connected to the outer side of the rectangular groove (6), and the spring (8) is fastened between the inner end of the rectangular block (7) and the inner bottom surface of the rectangular groove (6). A spherical groove (9) is opened at the outer end of the rectangular block (7), and the ball (10) is slidably connected to the inner surface of the spherical groove (9).

3. The fumigation furnace for treating solid waste according to claim 1, characterized in that: In its initial state, part of the structure of the ball bearing (10) is located outside the inner wall of the feed nozzle (4).

4. The fumigation furnace for treating solid waste according to claim 1, characterized in that: The air pump (2) is fixedly connected to the air inlet pipe (12), the air inlet pipe (12) is connected to the external pulverized coal pipeline, the air inlet nozzle (4) is fixedly connected to the branch pipe (3), the air inlet of several branch pipes (3) is fixedly connected to the air outlet pipe (11), the air inlet of the air outlet pipe (11) is fixedly connected to the air outlet of the air pump (2), and a solenoid valve (5) is fixedly installed on each branch pipe (3).

5. A fumigation furnace for treating solid waste according to claim 1, characterized in that: The air outlet of the feed nozzle (4) extends into the interior of the fuming furnace body (1).

6. A fumigation furnace for treating solid waste according to claim 1, characterized in that: The bottom of the air pump (2) is fixedly mounted on the support surface by a mounting bracket.

Images