A hazardous waste rotary kiln slag treatment device

Abstract

This utility model provides a hazardous waste rotary kiln slag treatment device, including a chute, a rotary kiln body, and a feed hopper. The chute is equipped with a crushing device for slag pretreatment. The crushing device includes a motor, a rotating shaft, crushing blades, a first filter plate, a first crushing gear, a second filter plate, and a second crushing gear. The motor is fixedly mounted above the feed hopper, and its output end is fixedly connected to the top of the rotating shaft. Crushing blades and the first crushing gear are fitted onto the surface of the rotating shaft. The first filter plate is fixedly positioned between the crushing blades and the first crushing gear. Multiple second crushing gears are meshed onto the surface of the first crushing gear. A second filter plate is fixedly mounted below the second crushing gear. The crushing device can perform two-stage, linked crushing of the slag, reducing the volume difference of the slag to ensure its fluidity, prevent slag blockage in the chute, promote uniform reaction within the kiln, and reduce fuel consumption within the rotary kiln body.

Description

Technical Field

[0001] This utility model relates to the field of rotary kiln technology, and in particular to a hazardous waste rotary kiln slag treatment device. Background Technology

[0002] A rotary kiln is a large-scale industrial thermal equipment mainly used for high-temperature treatment of hazardous waste, such as calcination, roasting, drying, or chemical reactions. It uses a slowly rotating inclined cylinder to uniformly heat hazardous waste at high temperatures and cause physical or chemical changes. It is widely used in cement, metallurgy, chemical, environmental protection and other fields.

[0003] Existing rotary kiln slag treatment devices include a feed hopper, a chute, and the rotary kiln body. Slag enters the chute through the feed hopper, and the tail end of the chute is connected to the rotary kiln body. The slag then flows from the chute into the rotary kiln body for a series of treatments. However, when encountering irregular or large slag, the existing rotary kiln slag treatment devices may cause slag blockage in the chute if there is no crushing device. Moreover, larger slag will increase fuel consumption in subsequent processing.

[0004] Therefore, it is necessary to provide a new hazardous waste rotary kiln slag treatment device to solve the above-mentioned technical problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a hazardous waste rotary kiln slag treatment device.

[0006] The present invention provides a hazardous waste rotary kiln slag treatment device, which includes a chute and a rotary kiln body connected to the tail of the chute. A feed hopper is fixedly connected to the upper end of the chute. The chute is characterized in that a crushing device for pre-treatment of slag is provided inside the chute.

[0007] The crushing device includes a motor, a rotating shaft, a crushing blade, a first filter plate, a first crushing gear, a second filter plate, and multiple second crushing gears. The motor is fixedly installed above the feed hopper, and the output end of the motor is fixedly connected to the top of the rotating shaft. The crushing blade and the first crushing gear are sleeved on the surface of the rotating shaft. The first filter plate is fixedly installed between the crushing blade and the first crushing gear. Multiple second crushing gears are meshed on the surface of the first crushing gear. The inner wall of the chute is provided with tooth grooves that mesh with the multiple second crushing gears. The second filter plate is fixedly installed below the second crushing gear.

[0008] Preferably, the bottom surface of the plurality of second crushing gears is flush with the bottom surface of the first crushing gear.

[0009] Preferably, the diameter of the filter holes in the second filter plate is smaller than that in the first filter plate, and both the first and second filter plates have holes at their centers. Both the first and second filter plates are fixedly connected to the inner wall of the chute.

[0010] Preferably, multiple vibrators are fixedly installed on the outer wall of the feed hopper.

[0011] Preferably, the lower surface of the rotating shaft is flush with the lower surface of the second filter plate.

[0012] Preferably, the shredder has multiple blades.

[0013] Compared with related technologies, the hazardous waste rotary kiln slag treatment device provided by this utility model has the following beneficial effects: the slag can be crushed by the crushing device set inside the chute, reducing the difference in slag volume, thereby ensuring the fluidity of the slag, preventing the slag from clogging in the chute, and promoting uniform reaction in the kiln, thus reducing fuel consumption inside the rotary kiln body. Attached Figure Description

[0014] Figure 1 A schematic diagram of the structure of a hazardous waste rotary kiln slag treatment device provided by this utility model;

[0015] Figure 2 for Figure 1 The front view of the crushing device shown;

[0016] Figure 3 for Figure 1 The diagram shows the structure of the pulverizing device.

[0017] Figure 4 A cross-sectional view of a chute for a hazardous waste rotary kiln slag treatment device provided by this utility model;

[0018] Figure 5 This is a top view of the chute and crushing device of a hazardous waste rotary kiln slag treatment device provided by this utility model.

[0019] The following are labeled in the diagram: 1. Rotary kiln body; 2. Chute; 3. Feed hopper; 4. Vibrator; 5. Motor; 6. Shaft; 7. Crusher; 8. Filter plate one; 9. Crusher gear one; 10. Crusher gear two; 11. Filter plate two; 12. Gear groove. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Please refer to the following: Figures 1-5 ,in, Figure 1A schematic diagram of the structure of a hazardous waste rotary kiln slag treatment device provided by this utility model; Figure 2 for Figure 1 The front view of the crushing device shown; Figure 3 for Figure 1 The diagram shows the structure of the pulverizing device. Figure 4 A cross-sectional view of a chute for a hazardous waste rotary kiln slag treatment device provided by this utility model; Figure 5 This is a top view of the chute and crushing device of a hazardous waste rotary kiln slag treatment device provided by this utility model.

[0022] In the specific implementation process, such as Figures 1-5 As shown, a hazardous waste rotary kiln slag treatment device includes a chute 2 and a rotary kiln body 1 connected to the tail of the chute 2. A feed hopper 3 is fixedly connected to the upper end of the chute 2. The chute 2 is characterized in that a crushing device for pre-treatment of slag is provided inside the chute 2.

[0023] The crushing device includes a motor 5, a rotating shaft 6, crushing blades 7, a first filter plate 8, a first crushing gear 9, a second filter plate 11, and multiple second crushing gears 10. The motor 5 is fixedly mounted above the feed hopper 3, and its output end is fixedly connected to the top of the rotating shaft 6. The surface of the rotating shaft 6 is fitted with the crushing blades 7 and the first crushing gear 9. The first filter plate 8 is fixedly mounted between the crushing blades 7 and the first crushing gear 9. Multiple second crushing gears 10 are meshed with the surface of the first crushing gear 9. The inner wall of the chute 2 is provided with grooves that mesh with the multiple second crushing gears 10. A filter plate 11 is fixedly installed below the toothed groove 12 and the crushing gear 10; the bottom surfaces of the multiple crushing gears 10 are flush with the bottom surfaces of the crushing gear 9; the filter hole diameter of the filter plate 11 is smaller than that of the filter hole diameter of the filter plate 8, and both the filter plate 8 and the filter plate 11 have holes at their centers, and both the filter plate 8 and the filter plate 11 are fixedly connected to the inner wall of the chute; multiple vibrators 4 are fixedly installed on the outer wall of the feed hopper 3; the lower surface of the rotating shaft 6 is flush with the lower surface of the filter plate 11; the crushing blade 7 has multiple blades.

[0024] The working principle provided by this utility model is as follows: When slag is put into the feeding hopper, multiple vibrators are installed on the outer wall of the feeding hopper. When the vibrators work, they will cause the feeding hopper to resonate, which can prevent some powdery slag from accumulating on the inner wall of the feeding hopper and causing blockage.

[0025] The motor drives the rotating shaft, along with the crushing blades and crushing gears mounted on the shaft surface, to rotate simultaneously. The slag is first initially crushed by the crushing blades, breaking down larger slag particles until they can pass through the first filter plate. After initial crushing, the slag undergoes secondary crushing by the combined action of the first crushing gear and multiple second crushing gears. As the first crushing gear rotates, multiple second crushing gears meshing with it also rotate simultaneously, without contacting each other. These second crushing gears rotate along the toothed grooves on the inner wall of the chute, further refining the slag through meshing and squeezing until it can completely pass through the second filter plate and then flow into the rotary kiln body for a series of processing steps.

[0026] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.

[0027] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A hazardous waste rotary kiln slag treatment device, comprising a chute (2) and a rotary kiln body (1) connected with the tail of the chute (2), and the upper end of the chute (2) is fixedly connected with a feeding hopper (3), characterized in that, The chute (2) is equipped with a crushing device for pre-treatment of slag; The crushing device includes a motor (5), a rotating shaft (6), a crushing blade (7), a first filter plate (8), a first crushing gear (9), a second filter plate (11), and multiple second crushing gears (10). The motor (5) is fixedly installed above the feed hopper (3). The output end of the motor (5) is fixedly connected to the top of the rotating shaft (6). The surface of the rotating shaft (6) is fitted with the crushing blade (7) and the first crushing gear (9). The first filter plate (8) is fixedly installed between the crushing blade (7) and the first crushing gear (9). Multiple second crushing gears (10) are meshed on the surface of the first crushing gear (9). The inner wall of the chute (2) is provided with tooth grooves (12) that mesh with the multiple second crushing gears (10). The second filter plate (11) is fixedly installed below the second crushing gear (10).

2. The hazardous waste rotary kiln slag treatment device according to claim 1, characterized in that, The bottom surfaces of the plurality of crushing gears two (10) are flush with the bottom surface of the crushing gear one (9).

3. The hazardous waste rotary kiln slag treatment device according to claim 1, characterized in that, The diameter of the filter hole of the second filter plate (11) is smaller than that of the filter hole of the first filter plate (8), and both the first filter plate (8) and the second filter plate (11) have holes at their centers. Both the first filter plate (8) and the second filter plate (11) are fixedly connected to the inner wall of the chute (2).

4. The hazardous waste rotary kiln slag treatment device according to claim 1, characterized in that, Multiple vibrators (4) are fixedly installed on the outer wall of the feed hopper (3).

5. The hazardous waste rotary kiln slag treatment device according to claim 1, characterized in that, The lower surface of the rotating shaft (6) is flush with the lower surface of the filter plate (11).

6. The hazardous waste rotary kiln slag treatment device according to claim 1, characterized in that, The shredder (7) has multiple blades.

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