Red mud roasting reaction furnace

Abstract

The utility model relates to the technical field of roasting reaction furnace, and disclose a kind of red mud roasting reaction furnace, including base, the top of base is provided with furnace body, the inside of furnace body is provided with inner control roasting component, the top of furnace body is provided with feeding control component, inner control roasting component includes middle supporting plate, middle supporting plate is fixedly connected in the inside center of furnace body, the top of middle supporting plate is fixedly connected with combustion placement shell, the inside bottom end of furnace body is fixedly connected with wood combustion box, the top of wood combustion box is fixedly connected with feeding semicircle piece.The red mud roasting reaction furnace, by being provided with inner control roasting component, start hydraulic telescopic link driving connection square plate to move forward, then drive sealing baffle to slide in the inside of limiting frame forward, let the top opening of nozzle leak, the opening of big red mud of big granularity is set, flame is longer, can be roasted to different degree according to granularity, and processing effect is good.

Description

Technical Field

[0001] This utility model relates to the field of roasting reactor technology, specifically a red mud roasting reactor. Background Technology

[0002] In the alumina production sector, red mud, as an industrial waste generated during the Bayer process or sintering process, has a huge annual discharge. Due to its high alkalinity, strong corrosiveness, and the presence of trace heavy metals, it has become a typical solid waste that urgently needs harmless treatment and resource utilization. Calcination, as a key technical means of red mud treatment, directly determines the solidification effect of harmful substances and the recovery efficiency of valuable metals in the red mud based on the performance of the reactor.

[0003] The prior art discloses a red mud roasting reactor with announcement number CN202898182U, comprising a furnace body and a furnace base. A roasting reaction chamber is arranged inside the furnace body, and a feed hopper is located at the top of the roasting reaction chamber. An operating handle and a handle support are provided on the feed hopper, and two feed bell jars are located within the feed hopper. Heating chambers are located on both sides of the middle of the roasting reaction chamber. A sodium vapor collection channel is located next to the upper side wall of the roasting reaction chamber, and a connecting pipe is provided between the sodium vapor collection channel and the roasting reaction chamber. The sodium vapor collection channel is located between the heating chamber and the feed hopper. A gas pipeline and a combustion air pipeline are connected at the lower end of the heating chamber. The gas and combustion air are mixed and then burned in the heating chamber through a burner. A discharge hopper is located at the bottom of the roasting reaction chamber, and a cooling water tank is located at the upper end of the discharge hopper. A crushing roller is installed inside the discharge hopper, and the lower part of the discharge hopper is connected to a discharge auger.

[0004] The aforementioned red mud roasting reactor has the advantages of simple structure, thorough dealkali removal, high by-product recovery rate, and high production efficiency. However, the aforementioned red mud roasting reactor cannot roast to different degrees according to particle size. The flames are uniform throughout, and red mud raw materials of different particle sizes will appear inside, resulting in poor processing effect and poor performance during use. Improvements are needed. Utility Model Content

[0005] The purpose of this invention is to provide a red mud roasting reactor to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a red mud roasting reactor, comprising a base, a furnace body disposed on the top of the base, an internal control roasting assembly disposed inside the furnace body, and a feeding control assembly disposed on the top of the furnace body.

[0007] The internal control roasting assembly includes an intermediate support plate, which is fixedly connected to the center of the furnace body. A combustion placement shell is fixedly connected to the top of the intermediate support plate. A wood combustion box is fixedly connected to the bottom of the furnace body. A feeding semicircular part is fixedly connected to the top of the wood combustion box. A feeding part is fixedly connected to the front of the feeding semicircular part. A nozzle placement shell is fixedly connected to the top of the feeding semicircular part. A nozzle head is fixedly connected to the top of the nozzle placement shell. A hydraulic telescopic rod is fixedly connected to the left side of the nozzle placement shell. A connecting rectangular plate is fixedly connected to the front of the hydraulic telescopic rod. A sealing baffle is fixedly connected to the right side of the back of the connecting rectangular plate. A limit frame is fixedly connected to the top front of the nozzle head.

[0008] Preferably, the feeding control assembly includes a feeding pipe, a hollow feeding component, a feeding frame plate, a sealing cover, a dispersing inlet pipe, a supporting arc plate, a preheating spiral, a connecting plate, a feeding component, a first feeding pipe, a second feeding pipe, and a third feeding pipe. The feeding pipe is fixedly connected to the top of the furnace body. The hollow feeding component is fixedly connected to the front of the feeding pipe. The feeding frame plate is fixedly connected to the top of the hollow feeding component. The dispersing inlet pipe is fixedly connected to the bottom of the feeding pipe. The supporting arc plate is fixedly connected to the top of the furnace body. The side of the supporting arc plate is connected to the side of the feeding pipe. The preheating spiral is fixedly connected to the back end of the feeding pipe near the bottom. The feeding component is fixedly connected to the bottom of the feeding pipe. The connecting plate is fixedly connected to the back of the feeding component. The first feeding pipe is fixedly connected to the front of the feeding component near the top. The second feeding pipe is fixedly connected to the front of the feeding component near the bottom. The third feeding pipe is fixedly connected to the bottom of the feeding component. A conveying auger is provided inside the feeding pipe.

[0009] Preferably, the inner area of ​​the limiting frame is adapted to the front area of ​​the sealing baffle. The sealing baffle is slidably connected to the inside of the limiting frame. The sealing baffle slides forward inside the limiting frame to ensure sliding temperature and prevents left and right displacement. When blocking is required, it can ensure that there are no gaps on the left and right.

[0010] Preferably, the first feeding pipe and the feeding component are at a 60-degree angle. The first feeding pipe and the second feeding pipe continue to feed forward. Different angles can accommodate red mud of different particle sizes, ensuring uniform distribution of materials in the furnace.

[0011] Preferably, the second fabric tube and the fabric component form a 45-degree angle.

[0012] Preferably, the sealing cover is inserted into the top of the feed frame plate, and the bottom of the sealing cover has a mating groove, the area of ​​which is adapted to the top area of ​​the feed frame plate.

[0013] Preferably, the side curvature of the supporting arc plate is adapted to the side curvature of the feed pipe.

[0014] Compared with the prior art, the beneficial effects of this utility model are: 1. This red mud roasting reactor is equipped with an internal control roasting component. When the hydraulic telescopic rod is activated, it drives the connecting rectangular plate forward, and then drives the sealing baffle to slide forward inside the limiting frame, allowing the top opening of the nozzle to leak out. The opening is set larger for red mud with larger particle size, and the flame is longer. It can roast at different degrees according to particle size, and the treatment effect is good.

[0015] 2. This red mud roasting reactor is equipped with a feeding control component. When the conveying auger inside the feeding pipe is activated, the poured powder is transported inward. It enters the combustion chamber through the dispersion inlet pipe at the bottom. Some of the raw material transported to the end continues to be distributed forward through the first and second distribution pipes respectively. Different angles can accommodate red mud of different particle sizes, ensuring uniform distribution of materials in the furnace and allowing red mud of different particle sizes to fall at different positions to ensure the processing effect. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This utility model Figure 1 Enlarged structural diagram at point A in the middle; Figure 3 This utility model Figure 1 Enlarged structural diagram at point B; Figure 4 This is a schematic diagram of the feeding control component of this utility model.

[0017] In the diagram: 1. Base; 2. Furnace body; 3. Internal control roasting assembly; 301. Intermediate support plate; 302. Combustion placement shell; 303. Wood combustion chamber; 304. Feeding semicircular part; 305. Feeding component; 306. Nozzle placement shell; 307. Nozzle; 308. Hydraulic telescopic rod; 309. Limiting frame; 310. Sealing baffle; 311. Connecting rectangular plate; 4. Feeding control assembly; 401. Feeding pipe; 402. Feeding hollow part; 403. Feeding frame plate; 404. Sealing cover; 405. Dispersion inlet pipe; 406. Supporting arc plate; 407. Preheating spiral; 408. Connecting plate; 409. Material distribution component; 410. First material distribution pipe; 411. Second material distribution pipe; 412. Third material distribution pipe. Detailed Implementation

[0018] 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.

[0019] Please see Figure 1-4 The present invention provides the following technical solution: A red mud roasting reactor includes a base 1, a furnace body 2 on the top of the base 1, an internal control roasting component 3 inside the furnace body 2, and a feeding control component 4 on the top of the furnace body 2.

[0020] The internal control roasting assembly 3 includes an intermediate support plate 301, which is fixedly connected to the center of the furnace body 2. A combustion placement shell 302 is fixedly connected to the top of the intermediate support plate 301. A wood combustion box 303 is fixedly connected to the bottom of the furnace body 2. A feeding semicircular part 304 is fixedly connected to the top of the wood combustion box 303. A feeding part 305 is fixedly connected to the front of the feeding semicircular part 304. A nozzle placement shell 306 is fixedly connected to the top of the feeding semicircular part 304. A nozzle 307 is fixedly connected to the top of the nozzle placement shell 306. A hydraulic telescopic rod 308 is fixedly connected to the left side. A connecting rectangular plate 311 is fixedly connected to the front of the hydraulic telescopic rod 308. A sealing baffle 310 is fixedly connected to the right side of the back of the connecting rectangular plate 311. A limiting frame 309 is fixedly connected to the top front of the nozzle 307. The inner area of ​​the limiting frame 309 matches the front area of ​​the sealing baffle 310. The sealing baffle 310 is slidably connected inside the limiting frame 309. The sealing baffle 310 slides forward inside the limiting frame 309 to ensure sliding temperature and prevent left and right displacement. When shielding is required, it can ensure that there are no gaps on the left and right.

[0021] The feeding control assembly 4 includes a feeding pipe 401, a hollow feeding component 402, a feeding frame plate 403, a sealing cover 404, a dispersion inlet pipe 405, a supporting arc plate 406, a preheating spiral 407, a connecting plate 408, a material distribution component 409, a first material distribution pipe 410, a second material distribution pipe 411, and a third material distribution pipe 412. The feeding pipe 401 is fixedly connected to the top of the furnace body 2, and the hollow feeding component 402 is fixedly connected to the front of the feeding pipe 401. The feed frame plate 403 is fixedly connected to the top of the feed hollow component 402; the dispersion inlet pipe 405 is fixedly connected to the bottom of the feed pipe 401; the support arc plate 406 is fixedly connected to the top of the furnace body 2; the side of the support arc plate 406 is connected to the side of the feed pipe 401; the preheating spiral 407 is fixedly connected to the back end of the surface of the feed pipe 401 near the bottom; the material distribution component 409 is fixedly connected to the bottom of the feed pipe 401; and the connecting plate 408 is fixedly connected to... On the back of the material distribution component 409, the first material distribution pipe 410 is fixedly connected to the front of the material distribution component 409 near the top, the second material distribution pipe 411 is fixedly connected to the front of the material distribution component 409 near the bottom, and the third material distribution pipe 412 is fixedly connected to the bottom of the material distribution component 409. The feed pipe 401 is equipped with a conveying auger. The side curvature of the supporting arc plate 406 is adapted to the side curvature of the feed pipe 401. The first material distribution pipe 410 and the material distribution component 409 form a 60-degree angle. The material is distributed forward through the first material distribution pipe 410 and the second material distribution pipe 411 respectively. Different angles can adapt to red mud of different particle sizes to ensure uniform distribution of materials in the furnace. The second material distribution pipe 411 and the material distribution component 409 form a 45-degree angle. The sealing cover 404 is inserted into the top of the feed frame plate 403. The bottom of the sealing cover 404 is provided with a docking groove. The area of ​​the docking groove is adapted to the top area of ​​the feed frame plate 403.

[0022] In use, the red mud powder to be roasted is evenly conveyed into the combustion placement shell 302 through the hollow feed component 402 and the feed pipe 401. The sealing cover 404 can be opened to pour in the red mud powder, and then the conveying auger inside the feed pipe 401 is activated to transport the powder inwards. During transport, the powder is poured into the combustion placement shell 302 through the dispersing inlet pipe 405 at the bottom, and finally conveyed backwards into the material distribution component 409. Then, it continues to be distributed forward through the first distribution pipe 410 and the second distribution pipe 411. Different angles can accommodate red mud of different particle sizes, ensuring uniform distribution of materials inside the furnace and allowing red mud of different particle sizes to fall into the correct positions. Different from other methods, ensuring the treatment effect, an internal control roasting component 3 is set in the middle of the furnace body 2. When in use, the burning material can be added into the inside of the feeding semi-circular part 304 through the feeding part 305, and then ignited by the wood combustion box 303 to carry out roasting. By adjusting the leakage area of ​​the nozzle 307, the mixing ratio of gas and air can be changed. The larger the opening of the nozzle 307, the longer the flame. When it is necessary to increase the size, the hydraulic telescopic rod 308 can be activated to drive the connecting rectangular plate 311 forward, and then drive the sealing baffle 310 to slide forward inside the limiting frame 309, so that the top opening of the nozzle 307 can be exposed. For red mud with large particle size, the opening is set to be larger, and the flame is longer. Different degrees of roasting can be carried out according to particle size, and the treatment effect is good.

[0023] 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 the 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 red mud roasting reactor, comprising a base (1), characterized in that: The base (1) is provided with a furnace body (2) on top, the furnace body (2) is provided with an internal control roasting component (3) inside, and the furnace body (2) is provided with a feeding control component (4) on top. The internal control roasting assembly (3) includes an intermediate support plate (301), which is fixedly connected to the center of the furnace body (2). A combustion placement shell (302) is fixedly connected to the top of the intermediate support plate (301). A wood combustion box (303) is fixedly connected to the bottom of the furnace body (2). A feeding semicircular part (304) is fixedly connected to the top of the wood combustion box (303). A feeding part (305) is fixedly connected to the front of the feeding semicircular part (304). A nozzle placement shell (306) is fixedly connected to the top of the material semi-circular part (304). A nozzle head (307) is fixedly connected to the top of the nozzle placement shell (306). A hydraulic telescopic rod (308) is fixedly connected to the left side of the nozzle placement shell (306). A connecting rectangular plate (311) is fixedly connected to the front of the hydraulic telescopic rod (308). A sealing baffle (310) is fixedly connected to the right side of the back of the connecting rectangular plate (311). A limit frame (309) is fixedly connected to the top front of the nozzle head (307).

2. The red mud roasting reactor according to claim 1, characterized in that: The feeding control assembly (4) includes a feeding pipe (401), a feeding hollow component (402), a feeding frame plate (403), a sealing cover (404), a dispersing inlet pipe (405), a supporting arc plate (406), a preheating spiral (407), a connecting plate (408), a feeding component (409), a first feeding pipe (410), a second feeding pipe (411), and a third feeding pipe (412). The feeding pipe (401) is fixedly connected to the top of the furnace body (2). The feeding hollow component (402) is fixedly connected to the front of the feeding pipe (401). The feeding frame plate (403) is fixedly connected to the top of the feeding hollow component (402). The dispersing inlet pipe (405) is fixedly connected to the bottom of the feeding pipe (401). The supporting arc plate... (406) is fixedly connected to the top of the furnace body (2). The side of the supporting arc plate (406) is connected to the side of the feed pipe (401). The preheating spiral (407) is fixedly connected to the back end of the surface of the feed pipe (401) near the bottom. The fabric distribution piece (409) is fixedly connected to the bottom of the feed pipe (401). The connecting plate (408) is fixedly connected to the back of the fabric distribution piece (409). The first fabric distribution pipe (410) is fixedly connected to the front of the fabric distribution piece (409) near the top. The second fabric distribution pipe (411) is fixedly connected to the front of the fabric distribution piece (409) near the bottom. The third fabric distribution pipe (412) is fixedly connected to the bottom of the fabric distribution piece (409). The feed pipe (401) is equipped with a conveying auger inside.

3. The red mud roasting reactor according to claim 1, characterized in that: The inner area of ​​the limiting frame (309) is adapted to the positive area of ​​the sealing baffle (310), and the sealing baffle (310) is slidably connected to the inside of the limiting frame (309).

4. The red mud roasting reactor according to claim 2, characterized in that: The first fabric tube (410) and the fabric piece (409) form a 60-degree angle.

5. The red mud roasting reactor according to claim 2, characterized in that: The second fabric tube (411) and the fabric piece (409) form a 45-degree angle.

6. The red mud roasting reactor according to claim 2, characterized in that: The sealing cover (404) is inserted into the top of the feed frame plate (403), and the bottom of the sealing cover (404) is provided with a docking groove, the area of ​​which is adapted to the top area of ​​the feed frame plate (403).

7. A red mud roasting reactor according to claim 2, characterized in that: The side curvature of the support arc plate (406) is adapted to the side curvature of the feed pipe (401).

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