High-temperature calcination type aluminum ash anti-caking rotary calcining furnace for secondary aluminum ash recovery treatment

Abstract

The utility model relates to the technical field of calcining furnaces, in particular to a high-temperature calcining type aluminum ash anti-caking rotary calcining furnace for recycling secondary aluminum ash, which comprises a base, a calcining furnace is arranged at the center of the top of the base, and a rotatable furnace core is arranged in the calcining furnace. A feeding device is fixed to the input end, close to the furnace core, of one end of the base, the mounting end of the feeding device is movably mounted in the input end of the furnace core, a grinding device capable of grinding aluminum ash particles into powder is fixed to the top end of the feeding device, and a discharging device is fixed to the output end, close to the furnace core, of the other end of the base. According to the aluminum ash calcining furnace, blocky particles in aluminum ash are ground into powder through the feeding device, harmful gas generated during calcining is purified through the purifying device, and the problems that the blocky particles in the aluminum ash cannot be treated, and the aluminum ash is prone to caking during calcining are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of calcining furnaces, in particular to a high-temperature calcining type aluminum ash anti-caking type rotary calcining furnace for secondary aluminum ash recovery and treatment. Background Art

[0002] A rotary calcining furnace is a rotary equipment that utilizes the heat of steam to dry / calcine by indirect heat exchange. Steam heating pipes are placed in the drum. The heating pipes run through the entire dryer and are arranged in 1 to 3 concentric circles. The heat required for drying is provided by the steam heating pipes. The heating pipes rotate with the drum wall. The materials entering the calcining furnace are lifted and stirred by the heating pipes in the drum, and are dried / calcined by the heat provided by the heating pipes. The dried / calcined products move from the higher end to the lower end with the help of the inclination of the drying / calcining furnace, and are discharged from the discharge port at the lower end. The vaporized water is discharged by the fan or removed by natural ventilation. Calcining furnaces are mainly used in cement production, lime manufacturing, ceramic production, chemical technology, metallurgical sintering and other fields.

[0003] Chinese patent CN220793812U discloses a calcining furnace for producing granular calcium aluminate from aluminum ash, including a rotary calcining furnace for calcining aluminum ash to produce granular calcium aluminate, four supporting wheels for supporting the rotary calcining furnace, a burner, a discharge port, a feed bin, and a transmission gear. The rotary calcining furnace is tilted, the burner is arranged on the rotary calcining furnace, the discharge port is arranged below the bottom of the rotary calcining furnace, and the rotary calcining furnace is provided with a feed screw and a flue gas collection device. The flue gas collection device includes a high-temperature polymerization sedimentation chamber, and the feed bin is connected to a feed bin airflow homogenization device. The feed bin adopts airflow homogenization to ensure the qualified rate of finished products; the rotary calcining furnace is provided with a composite furnace lining to enhance the wear resistance and strength of the furnace wall and save energy. The four supporting wheels provide support, and the equipment runs more stably. The increased length of the rotary calcining furnace makes the temperature field in the furnace more stable, improves the qualified rate and output, and the high-temperature agglomeration device captures dust and reduces the cost of tail gas treatment. However, the following shortcomings still exist.

[0004] Existing aluminum ash is usually mixed with a large number of block particles, which makes it very easy for the block particles to form agglomerates inside the calcining furnace when entering the calcining furnace for calcining. Therefore, a high-temperature calcining type aluminum ash anti-caking rotary calcining furnace for secondary aluminum ash recovery and treatment is proposed to solve the above problem. Utility Model Content

[0005] In view of the above problems, a high-temperature calcining aluminum ash anti-caking rotary calcining furnace for secondary aluminum ash recovery and treatment is provided. A grinding device is arranged at the top of a feeding device, so that the grinding device grinds the aluminum ash to prevent lumps in the aluminum ash from entering the furnace core. A purification device is arranged at the top of a discharging device, so that the purification device filters harmful substances generated when the furnace core calcines the aluminum ash. The feeding device grinds the lumpy particles in the aluminum ash into powder, and the purification device purifies the harmful gases generated during calcination, thereby solving the problem that the lumpy particles in the aluminum ash cannot be processed and the aluminum ash is easy to agglomerate during calcination.

[0006] In order to solve the problems of the prior art, the utility model provides a high-temperature calcining aluminum ash anti-caking rotary calcining furnace for secondary aluminum ash recovery and treatment, comprising a base, a calcining furnace is arranged at the center of the top of the base, a rotatable furnace core is arranged inside the calcining furnace, a feeding device is fixed at the input end of one end of the base close to the furnace core, the mounting end of the feeding device is movably installed inside the input end of the furnace core, a grinding device capable of grinding aluminum ash particles into powder is fixed at the top of the feeding device, and a discharging device is fixed at the other end of the base close to the output end of the furnace core, and the output end of the furnace core is movably installed inside the discharging device, and a purification device for purifying harmful substances generated during the calcination of aluminum ash is fixed at the top of the discharging device, so that the grinding device can grind the block particles inside the aluminum ash into powder, and the purification device can purify harmful gases generated during calcination.

[0007] As a technical solution of the utility model, a grinding belt is fixed to the inner wall of the grinding device, a rotatable rotating frame is arranged inside the grinding belt, and a rotatable grinding roller is obliquely arranged at the edge of the rotating frame so that the grinding roller and the feed funnel can cooperate with each other to grind the block particles in the aluminum ash.

[0008] As a technical solution of the utility model, an eccentric motor capable of driving the rotating frame to rotate is arranged at the center of the top of the grinding device, so that the eccentric motor drives the rotating frame to rotate.

[0009] As a technical solution of the utility model, a feeding funnel for adding raw materials is arranged on one side of the top of the grinding device, so that the aluminum ash can be added into the grinding device through the feeding funnel for grinding treatment.

[0010] As a technical solution of the utility model, several layers of filter elements for purifying air are arranged inside the purification device, so that the filter elements can filter harmful gases generated when aluminum ash is calcined.

[0011] As a technical solution of the utility model, limiting devices for limiting are symmetrically arranged at both ends of the upper end surface of the base, a limiting groove is arranged on the inner side of the top of the limiting device, and a plurality of rotatable rollers are arranged laterally equidistantly inside the limiting groove to facilitate the limiting device to limit the two ends of the furnace core.

[0012] As a technical solution of the utility model, a limiting convex ring for limiting the installation position of the discharging device and the feeding device is arranged on the outside of the input end of the calcining furnace, and a boss that can be movably installed inside the limiting groove is arranged on one side close to the limiting convex ring at both ends of the furnace core, so that the furnace core can rotate along the inside of the limiting groove through the boss.

[0013] As a technical solution of the utility model, a rotating drive member is arranged on one side of the limiting device close to the input end of the furnace core, and a gear is arranged on the output end of the rotating drive member so that the rotating drive member drives the gear to rotate and drives the furnace core to rotate at the same time.

[0014] As a technical solution of the utility model, a toothed belt capable of meshing with a gear is arranged outside the furnace core near the input end, so that the gear drives the furnace core to rotate through the toothed belt.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The present application enables the two ends of the furnace core to rotate along the central axis of the feeding device and the discharging device by inserting the mounting end of the feeding device into the interior of the input end of the furnace core and the output end of the furnace core into the interior of the discharging device. A grinding device is arranged at the top of the feeding device so that the grinding device grinds the aluminum ash to prevent the lumps in the aluminum ash from entering the interior of the furnace core. A purification device is arranged at the top of the discharging device so that the purification device filters the harmful substances generated when the furnace core calcines the aluminum ash. The feeding device grinds the lumpy particles in the aluminum ash into powder and the purification device purifies the harmful gases generated during the calcination, thereby solving the problem that the lumpy particles in the aluminum ash cannot be processed and the aluminum ash is easy to agglomerate during calcination.

[0017] The present application arranges an eccentric motor at the center of the top of the grinding device, so that the eccentric motor drives the rotating frame to rotate, and at the same time the rotating frame drives the inner grinding roller and the feed funnel to grind and crush the block particles in the aluminum ash, thereby achieving the grinding of the aluminum ash and solving the problem that the particulate matter in the aluminum ash cannot be processed, resulting in the aluminum ash being easily agglomerated during calcination.

[0018] The present application arranges a multi-layer filter element inside the purification device, so that the harmful gas generated when the furnace core calcines aluminum ash is purified by the filter element inside the purification device and then discharged, thereby realizing that the filter element filters the harmful substances in the gas and solves the problem of air pollution caused by the discharged harmful substances. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional diagram of a high-temperature calcining type aluminum ash anti-caking rotary calcining furnace used for secondary aluminum ash recovery and processing.

[0020] Figure 2 It is an exploded view of a high temperature calcining type aluminum ash anti-caking rotary calcining furnace used for secondary aluminum ash recovery and processing.

[0021] Figure 3 It is a three-dimensional diagram of a limiting device in a high-temperature calcined aluminum ash anti-caking type rotary calcining furnace used for secondary aluminum ash recovery and processing.

[0022] Figure 4 It is an exploded view of the grinding device in a high-temperature calcined aluminum ash anti-caking rotary calcining furnace used for secondary aluminum ash recovery and processing.

[0023] Figure 5 It is an exploded view of the purification device in a high-temperature calcined aluminum ash anti-caking rotary calcining furnace used for secondary aluminum ash recovery and processing.

[0024] The numbers in the figure are: 1. base; 2. calcining furnace; 201. furnace core; 202. limiting convex ring; 203. boss; 204. toothed belt; 3. limiting device; 301. limiting groove; 302. roller; 4. rotating drive member; 401. gear; 5. discharging device; 501. purification device; 502. filter element; 6. feeding device; 7. grinding device; 701. feeding funnel; 702. grinding belt; 703. eccentric motor; 704. rotating frame; 705. grinding roller. DETAILED DESCRIPTION

[0025] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0026] See also Figure 1-Figure 5 As shown, the utility model provides a high-temperature calcining aluminum ash anti-caking rotary calcining furnace for secondary aluminum ash recovery and treatment, including a base 1, a calcining furnace 2 is arranged at the center of the top of the base 1, and a rotatable furnace core 201 is arranged inside the calcining furnace 2, a feeding device 6 is fixed to the input end of one end of the base 1 close to the furnace core 201, and the mounting end of the feeding device 6 is movably installed inside the input end of the furnace core 201, and a grinding device 7 capable of grinding aluminum ash particles into powder is fixed to the top of the feeding device 6, and a discharging device 5 is fixed to the output end of the other end of the base 1 close to the furnace core 201, and the output end of the furnace core 201 is movably installed inside the discharging device 5, and a purification device 501 for purifying harmful substances generated during the calcination of aluminum ash is fixed to the top of the discharging device 5.

[0027] When in use, the mounting end of the feeding device 6 is inserted into the input end of the furnace core 201, and the output end of the furnace core 201 is inserted into the discharging device 5, so that the two ends of the furnace core 201 rotate along the central axis of the feeding device 6 and the discharging device 5, and a grinding device 7 is arranged at the top of the feeding device 6, so that the grinding device 7 grinds the aluminum ash to prevent the lumps in the aluminum ash from entering the furnace core 201, and a purification device 501 is arranged at the top of the discharging device 5, so that the purification device 501 filters the harmful substances generated when the furnace core 201 calcines the aluminum ash, so that the grinding device 7 grinds the lumps in the aluminum ash into powder, and the purification device 501 purifies the harmful gases generated during calcination.

[0028] See also Figure 4 As shown, a grinding belt 702 is fixed to the inner wall of the grinding device 7, a rotatable rotating frame 704 is arranged inside the grinding belt 702, and a rotatable grinding roller 705 is obliquely arranged at the edge of the rotating frame 704.

[0029] When in use, the feed funnel 701 is fixed to the inner wall of the grinding device 7, and a rotatable rotating frame 704 is arranged at the center of the feed funnel 701, so that when the rotating frame 704 rotates, the grinding roller 705 is driven to move along the inner surface of the feed funnel 701, so that the grinding roller 705 and the feed funnel 701 cooperate with each other to grind the block particles in the aluminum ash.

[0030] See also Figure 4 As shown, an eccentric motor 703 capable of driving a rotating frame 704 to rotate is arranged at the center of the top of the grinding device 7.

[0031] When in use, the eccentric motor 703 is fixed at the center of the top of the grinding device 7, and the rotating frame 704 is fixed at the bottom end of the output end of the eccentric motor 703, so that the eccentric motor 703 drives the rotating frame 704 to rotate.

[0032] A feeding funnel 701 for adding raw materials is provided on one side of the top of the grinding device 7.

[0033] See also Figure 4 As shown, when in use, a feeding funnel 701 is arranged on one side of the top of the grinding device 7, so that the aluminum ash is added to the inside of the grinding device 7 through the feeding funnel 701 for grinding.

[0034] See also Figure 5 As shown, several layers of filter elements 502 for purifying air are arranged inside the purification device 501.

[0035] When in use, a multi-layer filter element 502 is arranged inside the discharging device 5 so that the filter element 502 can filter harmful gases generated when the aluminum ash is calcined.

[0036] See also Figure 3 As shown, the two ends of the upper end surface of the base 1 are symmetrically provided with limiting devices 3 for limiting, the inner side of the top of the limiting device 3 is provided with a limiting groove 301, and the inner side of the limiting groove 301 is laterally equidistantly provided with a plurality of rotatable rollers 302.

[0037] When in use, the limiting device 3 is fixed to the two ends of the base 1 so that the limiting device 3 limits the two ends of the furnace core 201 to prevent the furnace core 201 from lateral movement when rotating.

[0038] See also Figure 2 As shown, a limiting convex ring 202 for limiting the installation position of the discharging device 5 and the feeding device 6 is arranged outside the input end of the calcining furnace 2, and a boss 203 that can be movably installed in the limiting groove 301 is arranged on one side close to the limiting convex ring 202 at both ends of the furnace core 201.

[0039] When in use, bosses 203 that can fit into the limiting groove 301 are provided at both ends of the furnace core 201 , and the bosses 203 are tangent to the roller 302 inside the limiting groove 301 , so that the furnace core 201 rotates along the limiting groove 301 through the bosses 203 .

[0040] See also Figure 3 As shown, a rotary drive member 4 is provided on one side of the limiting device 3 close to the input end of the furnace core 201 , and a gear 401 is provided on the output end of the rotary drive member 4 .

[0041] When in use, the rotary drive member 4 is fixed to the bottom end of one side of the limiting device 3, and a gear 401 is arranged at the output end of the rotary drive member 4, so that the rotary drive member 4 drives the gear 401 to rotate and drives the furnace core 201 to rotate at the same time.

[0042] See also Figure 2 As shown, a toothed belt 204 capable of meshing with the gear 401 is provided outside the furnace core 201 near the input end.

[0043] When in use, a toothed belt 204 capable of meshing with the gear 401 is arranged outside the furnace core 201 near the input end, so that the gear 401 drives the furnace core 201 to rotate through the toothed belt 204 .

[0044] The above embodiments only express one or several implementation methods of the present invention, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the attached claims.

Claims

1. A high-temperature calcining type aluminum ash anti-caking rotary calcining furnace for secondary aluminum ash recovery and treatment, comprising a base (1), characterized in that: A calcining furnace (2) is arranged at the center of the top of the base (1), and a rotatable furnace core (201) is arranged inside the calcining furnace (2). A feeding device (6) is fixed at the input end of one end of the base (1) close to the furnace core (201), and the mounting end of the feeding device (6) is movably mounted inside the input end of the furnace core (201). A grinding device (7) capable of grinding aluminum ash particles into powder is fixed at the top of the feeding device (6), and a discharging device (5) is fixed at the output end of the other end of the base (1) close to the furnace core (201), and the output end of the furnace core (201) is movably mounted inside the discharging device (5), and a purification device (501) for purifying harmful substances generated when calcining aluminum ash is fixed at the top of the discharging device (5).

2. The high-temperature calcining type aluminum ash anti-caking rotary calcining furnace for secondary aluminum ash recovery and treatment according to claim 1 is characterized in that: A grinding belt (702) is fixed to the inner wall of the grinding device (7), a rotatable rotating frame (704) is arranged inside the grinding belt (702), and a rotatable grinding roller (705) is obliquely arranged at the edge of the rotating frame (704).

3. The high-temperature calcining type aluminum ash anti-caking rotary calcining furnace for secondary aluminum ash recovery and treatment according to claim 1 is characterized in that: An eccentric motor (703) capable of driving a rotating frame (704) to rotate is arranged at the center of the top end of the grinding device (7).

4. The high-temperature calcining type aluminum ash anti-caking rotary calcining furnace for secondary aluminum ash recovery and treatment according to claim 1 is characterized in that: A feeding funnel (701) for adding raw materials is arranged on one side of the top of the grinding device (7).

5. The high temperature calcining type aluminum ash anti-caking rotary calcining furnace for secondary aluminum ash recovery and treatment according to claim 1, characterized in that: Several layers of filter elements (502) for purifying air are arranged inside the purification device (501).

6. The high-temperature calcining type aluminum ash anti-caking rotary calcining furnace for secondary aluminum ash recovery and treatment according to claim 1, characterized in that: Limiting devices (3) for limiting are symmetrically arranged at both ends of the upper end surface of the base (1); a limiting groove (301) is arranged on the inner side of the top of the limiting device (3); and a plurality of rotatable rollers (302) are arranged at equal intervals in the horizontal direction inside the limiting groove (301).

7. The high-temperature calcining type aluminum ash anti-caking rotary calcining furnace for secondary aluminum ash recovery and treatment according to claim 1, characterized in that: A limiting convex ring (202) for limiting the installation position of the discharge device (5) is arranged outside the input end of the calcining furnace (2), and bosses (203) that can be movably installed inside the limiting groove (301) are arranged on one side close to the limiting convex ring (202) at both ends of the furnace core (201).

8. The high temperature calcining type aluminum ash anti-caking rotary calcining furnace for secondary aluminum ash recovery and treatment according to claim 1, characterized in that: A rotating drive member (4) is provided on one side of the limiting device (3) close to the input end of the furnace core (201), and a gear (401) is provided on the output end of the rotating drive member (4).

9. The high temperature calcining type aluminum ash anti-caking rotary calcining furnace for secondary aluminum ash recovery and treatment according to claim 1, characterized in that: A toothed belt (204) capable of meshing with a gear (401) is arranged outside the furnace core (201) near the input end.

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