A hazardous waste sludge sintering raw material mixing device

Abstract

The utility model relates to the field of waste treatment equipment, concretely relates to a kind of hazardous waste sludge sintering raw material mixing device, including rack, the rack is equipped with feeding shell, the feeding shell inside is equipped with feeding component, the discharge end of the feeding shell is equipped with grinding component, the discharge end of the grinding component is connected with stirring component, the stirring component is installed on the rack, the grinding component includes the grinding shell installed in the discharge end of the feeding shell, the first grinding disc is fixedly connected in the grinding shell interior, the first grinding disc is equipped with the second grinding disc cooperation, the second grinding disc rotationally connects in the grinding shell and is drivingly connected with driving component, the grinding shell is connected with the stirring component.This utility model can carry out the pretreatment of cake-shaped raw material in advance to ensure the sintering effect of subsequent sintering process.

Description

Technical Field

[0001] This utility model relates to the field of waste treatment equipment, specifically to a mixing device for hazardous waste sludge sintering raw materials. Background Technology

[0002] Sintering solidification is a method for treating solid waste using high-temperature sintering technology. In this process, hazardous waste sintering materials are typically pre-treated. Due to changes in the upstream market and cost-reduction demands from upstream raw material manufacturers, the incoming raw material sludge undergoes chemical dosing and thorough plate-and-frame filtration before leaving the plant, significantly reducing surface moisture and forming a relatively dry sludge cake, i.e., "cake-shaped raw material." This raw material is difficult to homogenize during batching, resulting in uneven coal powder distribution and insufficient adhesion, leading to frequent occurrences of "eccentric firing" and "central column formation" during sintering. Utility Model Content

[0003] The purpose of this invention is to provide a mixing device for hazardous waste sludge sintering raw materials to solve the above-mentioned problems, and to pre-treat the cake-shaped raw materials in advance to ensure the sintering effect of the subsequent sintering process.

[0004] To achieve the above objectives, this utility model provides the following solution:

[0005] A mixing device for hazardous waste sludge sintering raw materials includes a frame, a feeding shell mounted on the frame, a feeding component inside the feeding shell, a grinding component at the discharge end of the feeding shell, a stirring component connected to the discharge end of the grinding component, the stirring component mounted on the frame, the grinding component including a grinding shell mounted on the discharge end of the feeding shell, a first grinding disc fixedly connected inside the grinding shell, a second grinding disc cooperating with the first grinding disc, the second grinding disc rotatably connected inside the grinding shell and driven by a driving component, and the grinding shell communicating with the stirring component.

[0006] Preferably, the feeding component includes a first main shaft rotatably connected inside the feeding shell, one end of the first main shaft being rotatably connected to the end of the feeding shell and axially connected to a first drive motor, the first drive motor being fixedly connected to the feeding shell, an auger being fixedly connected to the outside of the first main shaft, the grinding shell being located at the end away from the first drive motor and being in communication with it, the diameter of the feeding shell gradually decreasing at the end near the grinding shell, the outer contour of the auger matching the feeding shell, a hopper being connected to the side wall of the feeding shell, the pitch of the auger gradually decreasing towards the small end of the feeding shell, and a liquid outlet being connected to the bottom wall of the straight portion of the feeding shell, with a filter screen provided inside the liquid outlet.

[0007] Preferably, the driving component includes a second drive motor fixedly connected to the grinding shell, and the output shaft of the second drive motor passes through the side wall of the grinding shell and is axially connected to the second grinding disc.

[0008] Preferably, the stirring component includes a stirring shell fixedly connected to the frame, a second main shaft rotatably connected inside the stirring shell, a third drive motor shaft-connected to the bottom end of the second main shaft, the third drive motor fixedly connected to the bottom end of the stirring shell, a plurality of stirring blades fixedly connected to the outside of the second main shaft, and the top surface of the stirring shell communicating with the grinding shell.

[0009] Preferably, the bottom of the side wall of the stirring shell is connected to a discharge pipe.

[0010] Preferably, the second grinding disc has a spiral groove on its side wall near the first grinding disc.

[0011] This utility model has the following technical effects:

[0012] This invention features a feeding shell with a feeding component inside, which continuously feeds cake-shaped material into a grinding component. The grinding component then grinds the harder parts of the cake-shaped material, resulting in finer material entering the mixing component. After mixing, the material is fully mixed, providing a good sintering raw material for subsequent sintering. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

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

[0015] Figure 2 This is a schematic diagram of the end face structure of the second grinding disc of this utility model.

[0016] The components are as follows: 1. Hopper; 2. Feeding shell; 3. First drive motor; 4. First main shaft; 5. Screw conveyor; 6. Spiral groove; 7. Grinding shell; 8. First grinding disc; 9. Second grinding disc; 10. Second drive motor; 11. Stirring shell; 12. Second main shaft; 13. Stirring blade; 14. Third drive motor; 15. Discharge pipe; 16. Frame; 17. Liquid outlet. Detailed Implementation

[0017] 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.

[0018] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0019] Reference Figures 1 to 2 As shown, this utility model provides a mixing device for hazardous waste sludge sintering raw materials, including a frame 16, a feeding shell 2 installed on the frame 16, a feeding component inside the feeding shell 2, a grinding component at the discharge end of the feeding shell 2, a stirring component connected to the discharge end of the grinding component, the stirring component installed on the frame 16, the grinding component including a grinding shell 7 installed at the discharge end of the feeding shell 2, a first grinding disc 8 fixedly connected inside the grinding shell 7, a second grinding disc 9 cooperating with the first grinding disc 8, the second grinding disc 9 rotatably connected inside the grinding shell 7 and driven by a driving component, the grinding shell 7 communicating with the stirring component.

[0020] This invention features a feeding shell 2 with a feeding component inside, which continuously feeds the cake-shaped material into the grinding component. The grinding component then grinds the harder parts of the cake-shaped material, resulting in finer material entering the mixing component. After mixing, the material is fully mixed, providing a good sintering raw material for subsequent sintering.

[0021] Further optimization of the scheme: the feeding component includes a first main shaft 4 rotatably connected inside the feeding shell 2. One end of the first main shaft 4 is rotatably connected to the end of the feeding shell 2 and is shaft-connected to a first drive motor 3. The first drive motor 3 is fixedly connected to the feeding shell 2. An auger 5 is fixedly connected to the outside of the first main shaft 4. The grinding shell 7 is located at the end away from the first drive motor 3 and is connected to it. The diameter of the feeding shell 2 gradually decreases at the end close to the grinding shell 7. The outer contour of the auger 5 matches the feeding shell 2. The side wall of the feeding shell 2 is connected to a hopper 1. The pitch of the auger 5 gradually decreases towards the small end of the feeding shell 2. The bottom wall of the straight part of the feeding shell 2 is connected to a liquid outlet 17. A filter screen is provided inside the liquid outlet 17.

[0022] By setting the pitch of the auger 5 to gradually decrease, the material is squeezed during the rotation of the auger 5. The water in the material is filtered out through the filter screen set on the liquid outlet 17, and the other materials are continued to be transported to the next stage. The filtered water is further processed or used for other purposes, which can further contribute to water conservation.

[0023] The cooperation between the feeding shell 2 and the auger 5 not only achieves a preliminary crushing process for the cake-shaped material, but also, through their combined action, a compression process is achieved on the material at the contraction point of the feeding shell 2. This ensures that when the cake-shaped material comes into contact with the second grinding disc 9, the harder parts of the material are not left unloaded; instead, the material is compressed onto the second grinding disc 9, and the friction of the second grinding disc 9 grinds the harder material. Furthermore, the interaction between the first grinding disc 8 and the second grinding disc 9 further grinds any unground material, ensuring the fineness of the material entering the mixing component.

[0024] In a further optimized design, the driving component includes a second drive motor 10 fixedly connected to the grinding shell 7, and the output shaft of the second drive motor 10 passes through the side wall of the grinding shell 7 and is axially connected to the second grinding disc 9.

[0025] In a further optimized design, the stirring component includes a stirring shell 11 fixedly connected to the frame 16, a second main shaft 12 rotatably connected inside the stirring shell 11, a third drive motor 14 shaft-connected to the bottom end of the second main shaft 12, the third drive motor 14 fixedly connected to the bottom end of the stirring shell 11, and several stirring blades 13 fixedly connected to the outside of the second main shaft 12. The top surface of the stirring shell 11 is connected to the grinding shell 7.

[0026] After being ground, the material is fed into the mixing shell 11. Driven by the third motor 14, it drives several mixing blades 13 to achieve a thorough mixing process, making the material more fully mixed.

[0027] The design has been further optimized so that the bottom of the side wall of the mixing shell 11 is connected to the discharge pipe 15.

[0028] To further optimize the design, a spiral groove 6 is provided on the side wall of the second grinding disc 9 near the first grinding disc 8.

[0029] The spiral groove 6 allows the first grinding disc 8 and the second grinding disc 9 to gradually discharge the material into the mixing shell 11 through the spiral groove 6 during the grinding process, making the material discharge smoother.

[0030] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A mixing device for hazardous waste sludge sintering raw materials, characterized in that, The device includes a frame (16), on which a feeding shell (2) is mounted. The feeding shell (2) has a feeding component inside. The discharge end of the feeding shell (2) has a grinding component. The discharge end of the grinding component is connected to a stirring component. The stirring component is mounted on the frame (16). The grinding component includes a grinding shell (7) mounted on the discharge end of the feeding shell (2). A first grinding disc (8) is fixedly connected inside the grinding shell (7). A second grinding disc (9) is provided in cooperation with the first grinding disc (8). The second grinding disc (9) is rotatably connected inside the grinding shell (7) and is driven by a driving component. The grinding shell (7) is connected to the stirring component.

2. The hazardous waste sludge sintering raw material mixing device according to claim 1, characterized in that, The feeding component includes a first main shaft (4) rotatably connected inside the feeding shell (2). One end of the first main shaft (4) is rotatably connected to the end of the feeding shell (2) and is axially connected to a first drive motor (3). The first drive motor (3) is fixedly connected to the feeding shell (2). An auger (5) is fixedly connected to the outside of the first main shaft (4). The grinding shell (7) is located at the end away from the first drive motor (3) and is connected to it. The diameter of the feeding shell (2) near the grinding shell (7) gradually decreases. The outer contour of the auger (5) matches the feeding shell (2). The side wall of the feeding shell (2) is connected to a hopper (1). The pitch of the auger (5) towards the small end of the feeding shell (2) gradually decreases. The bottom wall of the straight part of the feeding shell (2) is connected to a liquid outlet (17). A filter screen is provided inside the liquid outlet (17).

3. The hazardous waste sludge sintering raw material mixing device according to claim 1, characterized in that, The driving component includes a second drive motor (10) fixedly connected to the grinding shell (7), and the output shaft of the second drive motor (10) passes through the side wall of the grinding shell (7) and is axially connected to the second grinding disc (9).

4. The hazardous waste sludge sintering raw material mixing device according to claim 1, characterized in that, The stirring component includes a stirring shell (11) fixedly connected to the frame (16), a second main shaft (12) rotatably connected inside the stirring shell (11), a third drive motor (14) shaft-connected to the bottom end of the second main shaft (12), the third drive motor (14) fixedly connected to the bottom end of the stirring shell (11), a plurality of stirring blades (13) fixedly connected to the outside of the second main shaft (12), and the top surface of the stirring shell (11) communicating with the grinding shell (7).

5. The hazardous waste sludge sintering raw material mixing device according to claim 4, characterized in that, The bottom of the side wall of the stirring shell (11) is connected to the discharge pipe (15).

6. A mixing device for hazardous waste sludge sintering raw materials according to any one of claims 1-5, characterized in that, The second grinding disc (9) has a spiral groove (6) on its side wall near the first grinding disc (8).

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