Integrated hazardous waste stable curing treatment line and treatment method thereof

Abstract

The invention discloses an integrated hazardous waste stable curing treatment line and method, and relates to the technical field of hazardous waste treatment. The treatment line comprises two treatment devices connected in parallel, and each device comprises a mixing tank, a top cover and a stirring mechanism. A connecting frame and a plurality of rubber rods are arranged in the top cover, a first eccentric wheel on the stirring shaft drives the connecting frame to vibrate, and stirring bubbles are reduced. A dust suction pipe, a filter bag and a fan are arranged at the side part of the mixing tank; the filter bag shakes to prevent blockage through a push rod and a second eccentric wheel. In the discharging mechanism, a piston in a discharging barrel is pressurized by a tension spring, and discharging bubbles are reduced. The treatment method comprises the following steps: alternately mixing and discharging materials; the rubber rod is vibrated during stirring; the fan sucks dust and shakes the filter bag; and the piston is pressurized during discharging. According to the scheme, bubbles are reduced through physical vibration and pressure control, the compactness of a solidified body is improved, and the storage period is prolonged; dust collection and blocking prevention are synchronously realized, and secondary pollution is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of hazardous waste solidification treatment, and in particular to an integrated hazardous waste stabilization and solidification treatment line and a treatment method thereof. Background Art

[0002] Hazardous waste solidification treatment usually involves mixing hazardous waste with a curing agent such as cement to form a stable solidified body to encapsulate pollutants and reduce the risk of leaching. Existing equipment is prone to generating bubbles during the stirring process, which leads to an increase in voids inside the solidified body, affecting the density and storage period. The presence of bubbles will increase the volume of the solidified body, reduce its impermeability, and may cause the migration of pollutants in the long term. Current devices lack effective bubble suppression and dust control methods, which affects treatment efficiency and environmental safety. To address the above problems, the present invention proposes an integrated hazardous waste stabilization and solidification treatment line and a treatment method thereof. Summary of the Invention

[0003] The present invention provides an integrated hazardous waste stabilization and solidification treatment line and a treatment method thereof, which solves the disadvantage in the prior art that a large number of bubbles are generated during the raw material stirring process, and the generation of bubbles affects the quality of solidification.

[0004] The present invention provides the following technical solutions:

[0005] An integrated hazardous waste stabilization and solidification treatment line includes: a treatment device, wherein two treatment devices are provided, each treatment device including a mixing tank, a top cover fixed to the top of the mixing tank by bolts, a plurality of connected injection pipes fixedly connected to the top of the top cover, a plurality of rubber rods fixedly connected to the inner wall of the top of the top cover, a connecting frame fixedly connected between the rubber rods, and a driving hole penetrating the middle of the connecting frame;

[0006] The top of the top cover is rotatably connected to a through-mixing shaft, and the circumference of the mixing shaft is fixedly connected to a first eccentric wheel, which is located in the driving hole and one side of the first eccentric wheel is in contact with the driving hole to drive the connecting frame to shake;

[0007] The bottom of each processing device is provided with a discharge mechanism for discharging materials;

[0008] The device also includes a conveyor, which is arranged below the processing device, and a mold is placed on the surface of the conveyor.

[0009] Furthermore, the discharge mechanism includes a discharge pipe, the bottom of the discharge pipe is fixedly connected to a discharge barrel, one end of the discharge barrel is rotatably connected to a feeding auger, one end of the discharge barrel is fixedly connected to a discharge motor, one end of the discharge motor output shaft is fixed to the feeding auger, and the bottom of the discharge barrel is fixedly connected to the discharge pipe.

[0010] Furthermore, the discharging barrel is slidably connected to one end away from the discharging motor with a sliding rod passing through, one end of the sliding rod is fixedly connected to a piston, the piston is slidably connected to the discharging barrel, and the other end of the sliding rod is fixedly connected to two side plates, and tension springs are installed between the side plates and the discharging barrel through hooks.

[0011] Furthermore, a stirring motor is fixedly connected to the top of the top cover, and one end of the output shaft of the stirring motor is fixed to the stirring shaft.

[0012] Furthermore, a plurality of stirring blades are fixedly connected to the circumference of the stirring shaft.

[0013] Furthermore, a connected dust extraction pipe is fixedly installed on one side of the mixing tank, one end of the dust extraction pipe is fixedly connected to a collecting pipe extending downward and an installation pipe extending upward, a filter bag connected to the dust extraction pipe is fixedly connected inside the installation pipe, and a fan is fixedly connected to one side of the dust extraction pipe, and the exhaust end of the fan is fixedly connected to the installation pipe.

[0014] Furthermore, the circumferential sleeve of the filter bag is provided with a fixed ring, one side of the fixed ring is fixedly connected to a push rod, the push rod slides through the mounting tube, the circumference of the stirring shaft is fixedly connected to a second eccentric wheel, the push rod is in contact with the second eccentric wheel, the top of the top cover is fixedly connected to a guide sleeve, the push rod slides through the guide sleeve.

[0015] Furthermore, a discharge port is provided at the bottom of the collecting pipe, and a cover plate is fixed to the bottom of the discharge port by bolts.

[0016] The present invention also proposes a treatment method for an integrated hazardous waste stabilization and solidification treatment line, comprising the following steps:

[0017] S1: A processing device is started to mix fly ash, cement and chelating agent, and water is added. During mixing, a stirring motor is started, which drives the stirring shaft to rotate, thereby mixing the raw materials. After mixing is completed, a discharge motor is started, which drives the feeding auger to rotate, thereby feeding the mixed raw materials into a mold for solidification, and the mold is transported away by a conveyor;

[0018] S2: During discharge, the tension spring drives the side plate, slide rod and piston, which in turn generates pressure in the piston, thereby reducing bubbles in the raw materials during discharge and improving the curing effect;

[0019] S3: When the stirring shaft rotates, it also drives the first eccentric wheel to rotate. The first eccentric wheel circulates on the connecting frame, which in turn can drive the connecting frame to shake. The connecting frame drives the rubber rod to vibrate in the raw material, thereby reducing the generation of bubbles during stirring, increasing the density of the hazardous waste after solidification, extending the sealing period, and preventing secondary pollution;

[0020] S4: During the mixing process, the fan is started, and the fan extracts the air in the mixing tank and discharges it to the external air purification equipment for purification and then discharge. During the air extraction process, the floating dust enters the filter bag and is then filtered by the filter bag to prevent the dust from floating. When the stirring shaft rotates, it also drives the second eccentric wheel to rotate, and the second eccentric wheel pushes the push rod to move, and the push rod drives the fixed ring to shake, thereby causing the filter bag to shake, effectively preventing dust accumulation in the filter bag and improving the ventilation effect. Opening the cover can facilitate the collection of the falling dust.

[0021] It should be understood that the foregoing general description and the following detailed description are exemplary only and are not restrictive of the invention.

[0022] In the present invention, by installing a rubber rod in the mixing tank, during the process of solidifying and mixing hazardous waste, the connecting frame can drive the rubber rod to vibrate in the raw materials, thereby reducing the generation of bubbles during stirring, increasing the density of the hazardous waste after solidification, extending the sealing period, and preventing secondary pollution.

[0023] In the present invention, by using a blower and a filter bag in conjunction, when solidifying hazardous waste, the air in the mixing tank can be extracted by the blower and discharged to an external air purification device for purification and then discharged. During the air extraction process, the floating dust enters the filter bag and is then filtered by the filter bag to prevent the dust from floating.

[0024] In the present invention, the piston and the tension spring are used in conjunction, so that the piston generates pressure under the action of the tension spring, thereby reducing bubbles in the raw materials during discharge, increasing the density of the discharged materials, and improving the curing effect;

[0025] In the present invention, the filter bag is movable so that the filter bag can be shaken under the action of the push rod, thereby effectively preventing dust accumulation in the filter bag and improving the ventilation effect;

[0026] The present invention can reduce the generation of bubbles during stirring, increase the compactness of hazardous waste after solidification, extend the sealing period, and prevent secondary pollution. At the same time, it can prevent dust from floating and dust accumulation in the filter bag, thereby improving the ventilation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic diagram of the three-dimensional structure of an integrated hazardous waste stabilization and solidification treatment line provided by an embodiment of the present invention;

[0028] Figure 2 A schematic cross-sectional view of a mixing tank of an integrated hazardous waste stabilization and solidification treatment line provided by an embodiment of the present invention;

[0029] Figure 3 A schematic diagram of a partial cross-sectional structure of an integrated hazardous waste stabilization and solidification treatment line provided by an embodiment of the present invention;

[0030] Figure 4 A schematic cross-sectional view of a discharge barrel of an integrated hazardous waste stabilization and solidification treatment line provided by an embodiment of the present invention;

[0031] Figure 5 An integrated hazardous waste stabilization and solidification treatment line provided by the embodiment of the present invention Figure 3 Schematic diagram of the enlarged structure of point A.

[0032] Reference numerals:

[0033] 1. Conveyor; 2. Processing device; 3. Mould; 4. Mixing tank; 5. Top cover; 6. Stirring motor; 7. Stirring shaft; 8. Stirring blade; 9. Injection pipe; 10. Discharge pipe; 11. Discharge barrel; 12. Rubber rod; 13. Connecting frame; 14. First eccentric wheel; 15. Guide sleeve; 16. Push rod; 17. Second eccentric wheel; 18. Discharge motor; 19. Feeding auger; 20. Discharge pipe; 21. Sliding rod; 22. Piston; 23. Side plate; 24. Tension spring; 25. Dust extraction pipe; 26. Collecting pipe; 27. Mounting pipe; 28. Filter bag; 29. ​​Retaining ring; 30. Fan; 31. Cover plate. DETAILED DESCRIPTION

[0034] The embodiments of the present invention are described below with reference to the accompanying drawings.

[0035] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms, "connection", and "installation" should be understood in a broad sense. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. In addition, "communication" can be a direct connection or an indirect connection through an intermediate medium. Here, "fixed" means that the two are connected to each other and the relative position relationship after connection remains unchanged. The directional terms mentioned in the embodiments of the present invention, such as "inside", "outside", "top", "bottom", etc., are only reference to the directions of the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0036] References to "one embodiment" or "some embodiments" in this specification mean that a particular feature, structure, or characteristic described in connection with that embodiment is included in one or more embodiments of the present invention. Thus, phrases such as "in one embodiment," "in some embodiments," "in other embodiments," and "in yet other embodiments" appearing in various places in this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "including," "comprising," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0037] Example 1

[0038] Reference Figure 1-Figure 5 , an integrated hazardous waste stabilization and solidification treatment line, including: a treatment device 2, the treatment device 2 is set to two, one of which is mixing while the other is discharging, and they are used interchangeably to improve the treatment efficiency, the treatment device 2 includes a mixing tank 4, the top of the mixing tank 4 is fixed with a top cover 5 by bolts, the top of the top cover 5 is fixedly connected with a plurality of connected injection pipes 9, the injection pipes 9 are used to connect the raw material pipeline, the top inner wall of the top cover 5 is fixedly connected with a plurality of rubber rods 12, the rubber rods 12 are fixedly connected with a connecting frame 13, the middle part of the connecting frame 13 is provided with a penetrating drive hole, the rubber rod 12 adopts a cylindrical, prismatic or conical structure, and the end can be provided with corrugations or protrusions to enhance the vibration transmission efficiency;

[0039] The top of the top cover 5 is rotatably connected to a stirring shaft 7 that passes through it. The circumference of the stirring shaft 7 is fixedly connected to a first eccentric wheel 14. The first eccentric wheel 14 is located in the driving hole and one side is in contact with the driving hole to push the connecting frame 13 to shake. When the stirring shaft 7 rotates, the first eccentric wheel 14 is driven to rotate. The first eccentric wheel 14 circulates on the connecting frame 13, thereby pushing the connecting frame 13 to shake. The connecting frame 13 drives the rubber rod 12 to vibrate in the raw material, thereby reducing the generation of bubbles during stirring.

[0040] The bottom of the processing device 2 is provided with a discharge mechanism for discharging materials;

[0041] The apparatus further comprises a conveyor 1 , which is arranged below the processing device 2 , and a mold 3 is placed on the surface of the conveyor 1 .

[0042] In the present invention, the discharge mechanism includes a discharge pipe 10, the bottom of the discharge pipe 10 is fixedly connected to a discharge barrel 11, one end of the discharge barrel 11 is rotatably connected to a feeding auger 19, one end of the discharge barrel 11 is fixedly connected to a discharge motor 18, one end of the output shaft of the discharge motor 18 is fixed to the feeding auger 19, and the bottom of the discharge barrel 11 is fixedly connected to a discharge pipe 20. When the discharge motor 18 is started, the discharge motor 18 drives the feeding auger 19 to rotate, and then the mixed raw materials are sent to the mold 3 for solidification, and the mold 3 is transported away by the conveyor 1.

[0043] Example 2

[0044] Reference Figure 1-Figure 5 , based on Example 1, an integrated hazardous waste stabilization and solidification treatment line is improved, an integrated hazardous waste stabilization and solidification treatment line.

[0045] In the present invention, the end of the discharge barrel 11 away from the discharge motor 18 is slidably connected to a sliding rod 21 that penetrates therethrough, one end of the sliding rod 21 is fixedly connected to a piston 22, the piston 22 is slidably connected to the discharge barrel 11, and the other end of the sliding rod 21 is fixedly connected to two side plates 23, and tension springs 24 are installed between the side plates 23 and the discharge barrel 11 through hooks (the elastic coefficient of the tension spring 24 is 50-200N / m, ensuring that the piston 22 applies continuous pressure during discharge). During discharge, the side plates 23, the sliding rod 21 and the piston 22 are driven by the tension spring 24, so that the piston 22 generates pressure, thereby reducing bubbles in the raw materials during discharge and improving the curing effect.

[0046] In particular, a stirring motor 6 is fixedly connected to the top of the top cover 5, one end of the output shaft of the stirring motor 6 is fixed to the stirring shaft 7, and a plurality of stirring blades 8 are fixedly connected to the circumference of the stirring shaft 7. The stirring motor 6 is used to drive the stirring shaft 7 to rotate, thereby mixing the materials.

[0047] It should be noted that a connected dust extraction pipe 25 is fixedly installed on one side of the mixing tank 4, one end of the dust extraction pipe 25 is fixedly connected to a downward extending collecting pipe 26 and an upward extending mounting pipe 27, a filter bag 28 connected to the dust extraction pipe 25 is fixedly connected inside the mounting pipe 27, and a fan 30 is fixedly connected to one side of the dust extraction pipe 25, the exhaust end of the fan 30 is fixedly connected to the mounting pipe 27, and the fan 30 is started, and the fan 30 draws out the air in the mixing tank 4 and discharges it to an external air purification device for purification and then discharge. During the air extraction process, the floating dust enters the filter bag 28 and is then filtered by the filter bag 28 to prevent the dust from floating.

[0048] In the present invention, a fixed ring 29 is provided on the circumference of the filter bag 28, and a push rod 16 is fixedly connected to one side of the fixed ring 29. The push rod 16 slides through the mounting tube 27. The circumference of the stirring shaft 7 is fixedly connected to the second eccentric wheel 17. The push rod 16 contacts the second eccentric wheel 17. The top of the top cover 5 is fixedly connected to the guide sleeve 15. The push rod 16 slides through the guide sleeve 15. When the stirring shaft 7 rotates, the second eccentric wheel 17 is driven to rotate. The second eccentric wheel 17 pushes the push rod 16 to move. The push rod 16 drives the fixed ring 29 to shake, thereby causing the filter bag 28 to shake, effectively preventing dust accumulation in the filter bag 28 and improving the ventilation effect.

[0049] In particular, a discharge port is provided at the bottom of the collecting pipe 26 , and a cover plate 31 is fixed to the bottom of the discharge port by bolts. Opening the cover plate 31 can facilitate the centralized collection of the falling dust.

[0050] The present invention also proposes a treatment method for an integrated hazardous waste stabilization and solidification treatment line, comprising the following steps:

[0051] S1: A processing device 2 is started to mix fly ash, cement and chelating agent, and water is added. During mixing, a stirring motor 6 is started, which drives a stirring shaft 7 to rotate, thereby mixing the raw materials. After mixing is completed, a discharge motor 18 is started, which drives a feeding auger 19 to rotate, thereby feeding the mixed raw materials into a mold 3 for solidification, and the mold 3 is transported away by a conveyor 1;

[0052] S2: During discharge, the tension spring 24 drives the side plate 23, the slide rod 21 and the piston 22, thereby causing the piston 22 to generate pressure, thereby reducing bubbles in the raw material during discharge and improving the curing effect;

[0053] S3: When the stirring shaft 7 rotates, it also drives the first eccentric wheel 14 to rotate. The first eccentric wheel 14 circulates on the connecting frame 13, thereby pushing the connecting frame 13 to shake. The connecting frame 13 drives the rubber rod 12 to vibrate in the raw material, thereby reducing the generation of bubbles during stirring, increasing the density of the hazardous waste after solidification, extending the sealing period, and preventing secondary pollution;

[0054] S4: During the mixing process, the fan 30 is started, and the fan 30 extracts the air in the mixing tank 4 and discharges it to the external air purification equipment for purification and then discharge. During the air extraction process, the floating dust enters the filter bag 28 and is then filtered by the filter bag 28 to prevent the dust from floating. When the stirring shaft 7 rotates, it also drives the second eccentric wheel 17 to rotate. The second eccentric wheel 17 pushes the push rod 16 to move, and the push rod 16 drives the fixed ring 29 to shake, thereby causing the filter bag 28 to shake, effectively preventing dust accumulation in the filter bag 28 and improving the ventilation effect. Opening the cover 31 can facilitate the collection of the falling dust.

[0055] However, as is well known to those skilled in the art, the working principles and wiring methods of the stirring motor 6 and the discharging motor 18 are commonplace, and are conventional means or common knowledge, so they will not be elaborated here. Those skilled in the art can make any selections according to their needs or convenience.

[0056] The above are only specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. The embodiments of the present invention and the features therein can be combined with each other unless there is a conflict. Therefore, the scope of protection of the present invention shall be based on the scope of protection of the claims.

Claims

1. An integrated hazardous waste stabilization and solidification treatment line, characterized in that: include: A processing device (2) is provided in two pieces. The processing device (2) comprises a mixing tank (4). A top cover (5) is fixed to the top of the mixing tank (4) by bolts. A plurality of connected injection pipes (9) are fixedly connected to the top of the top cover (5). A plurality of rubber rods (12) are fixedly connected to the inner wall of the top of the top cover (5). A connecting frame (13) is fixedly connected between the rubber rods (12). A driving hole is provided in the middle of the connecting frame (13). The top of the top cover (5) is rotatably connected to a through-going stirring shaft (7), and the circumference of the stirring shaft (7) is fixedly connected to a first eccentric wheel (14), which is located in the driving hole and one side of the first eccentric wheel (14) is in contact with the driving hole to push the connecting frame (13) to shake; The bottom of each processing device (2) is provided with a discharge mechanism for discharging materials; It also includes a conveyor (1), which is arranged below the processing device (2), and a mold (3) is placed on the surface of the conveyor (1).

2. The integrated hazardous waste stabilization and solidification treatment line according to claim 1 is characterized in that: The discharge mechanism includes a discharge pipe (10), the bottom of the discharge pipe (10) is fixedly connected to a discharge barrel (11), one end of the discharge barrel (11) is rotatably connected to a feeding auger (19), one end of the discharge barrel (11) is fixedly connected to a discharge motor (18), one end of the output shaft of the discharge motor (18) is fixed to the feeding auger (19), and the bottom of the discharge barrel (11) is fixedly connected to a discharge pipe (20).

3. The integrated hazardous waste stabilization and solidification treatment line according to claim 2 is characterized in that: The end of the discharge barrel (11) away from the discharge motor (18) is slidably connected to a sliding rod (21) passing through it, one end of the sliding rod (21) is fixedly connected to a piston (22), and the piston (22) is slidably connected to the discharge barrel (11). The other end of the sliding rod (21) is fixedly connected to two side plates (23), and tension springs (24) are installed between the side plates (23) and the discharge barrel (11) through hooks.

4. The integrated hazardous waste stabilization and solidification treatment line according to claim 1 is characterized in that: The top of the top cover (5) is fixedly connected to a stirring motor (6), and one end of the output shaft of the stirring motor (6) is fixed to the stirring shaft (7).

5. The integrated hazardous waste stabilization and solidification treatment line according to claim 4 is characterized in that: A plurality of stirring blades (8) are fixedly connected to the circumference of the stirring shaft (7).

6. The integrated hazardous waste stabilization and solidification treatment line according to claim 1 is characterized in that: A dust extraction pipe (25) is fixedly installed on one side of the mixing tank (4), one end of the dust extraction pipe (25) is fixedly connected to a downwardly extending collecting pipe (26) and an upwardly extending mounting pipe (27), a filter bag (28) connected to the dust extraction pipe (25) is fixedly connected inside the mounting pipe (27), and a fan (30) is fixedly connected to one side of the dust extraction pipe (25), and the exhaust end of the fan (30) is fixedly connected to the mounting pipe (27).

7. The integrated hazardous waste stabilization and solidification treatment line according to claim 6, characterized in that: The filter bag (28) is provided with a fixed ring (29) on its circumference, and a push rod (16) is fixedly connected to one side of the fixed ring (29), and the push rod (16) slides through the mounting tube (27). The stirring shaft (7) is fixedly connected to the circumference of the second eccentric wheel (17), and the push rod (16) contacts the second eccentric wheel (17). The top of the top cover (5) is fixedly connected to a guide sleeve (15), and the push rod (16) slides through the guide sleeve (15).

8. The integrated hazardous waste stabilization and solidification treatment line according to claim 1 is characterized in that: A discharge port is provided at the bottom of the collecting pipe (26), and a cover plate (31) is fixed to the bottom of the discharge port by bolts.

9. The method for treating an integrated hazardous waste stabilization and solidification treatment line according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1: fly ash, cement and chelating agent are mixed by starting a processing device (2), and water is added. During mixing, a stirring motor (6) is started, and the stirring motor (6) drives the stirring shaft (7) to rotate, thereby mixing the raw materials. After the mixing is completed, a discharge motor (18) is started, and the discharge motor (18) drives the feeding auger (19) to rotate, thereby feeding the mixed raw materials into a mold (3) for solidification, and at the same time, the mold (3) is transported away by a conveyor (1); S2: During discharge, the tension spring (24) drives the side plate (23), the slide rod (21) and the piston (22), thereby causing the piston (22) to generate pressure, thereby reducing bubbles in the raw material during discharge and improving the curing effect; S3: When the stirring shaft (7) rotates, it also drives the first eccentric wheel (14) to rotate. The first eccentric wheel (14) circulates on the connecting frame (13), thereby pushing the connecting frame (13) to shake. The connecting frame (13) drives the rubber rod (12) to vibrate in the raw material, thereby reducing the generation of bubbles during stirring, increasing the density of the hazardous waste after solidification, extending the sealing period, and preventing secondary pollution; S4: During the mixing process, the fan (30) is started, and the fan (30) extracts the air in the mixing tank (4) and discharges it to the external air purification device for purification and then discharge. During the air extraction process, the floating dust enters the filter bag (28) and is then filtered by the filter bag (28) to prevent the dust from floating. When the stirring shaft (7) rotates, it also drives the second eccentric wheel (17) to rotate. The second eccentric wheel (17) pushes the push rod (16) to move, and the push rod (16) drives the fixed ring (29) to shake, thereby causing the filter bag (28) to shake, effectively preventing the accumulation of dust in the filter bag (28) and improving the ventilation effect. Opening the cover (31) can facilitate the collection of the falling dust.

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