Manganese slag harmless treatment equipment

Abstract

The invention discloses manganese slag harmless treatment equipment, and relates to the technical field of manganese slag treatment.The manganese slag harmless treatment equipment comprises a roller device, a pesticide applying device, a hot airflow device and a scattering device, the roller device is provided with a reaction cavity, one end of the roller device is a feeding port, the other end of the roller device is a discharging port, the roller device can rotate, and a rotating shaft is horizontally arranged; the pesticide applying device extends into the roller device from the feeding hole and is used for putting a pesticide into the reaction cavity; the hot air flow device extends into the roller device from the material inlet; the scattering device is fixed on the inner wall of the roller device, is positioned in the reaction cavity and is spirally arranged along the axial direction of the roller device. According to the harmless treatment equipment for the manganese slag, the harmless treatment efficiency of the manganese slag can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of manganese slag treatment, and in particular to a harmless treatment device for manganese slag. Background Art

[0002] Manganese slag harmless treatment generally includes pyrolysis and wet treatment. Wet method includes water washing method, leaching method, electrochemical method, etc., and pyrolysis includes calcination desulfurization, etc. The above method still has the problem of low treatment efficiency. For example, in wet treatment, the manganese slag after crushing needs to be added to a stirrer, mixed with various additives and stirred to promote the dissolution and separation of pollutants in the manganese slag. In order to fully stir and ensure the treatment effect, the above steps are difficult to be carried out continuously, that is, after a batch of manganese slag stirring reaction is carried out, the manganese slag in the stirrer needs to be discharged, and then new manganese slag is added for stirring. It is difficult to add new manganese slag while discharging the treated manganese slag and ensuring the stirring effect. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a harmless treatment device for manganese slag, which can improve the efficiency of harmless treatment of manganese slag.

[0004] The harmless treatment equipment for manganese slag according to an embodiment of the present invention comprises a drum device, the drum device has a reaction chamber, one end of the drum device is a material inlet, the other end is a material outlet, the drum device can rotate and the rotating shaft is arranged horizontally; A medicine-applying device, the medicine-applying device extends from the feeding port into the drum device, and the medicine-applying device is used to put medicine into the reaction chamber; A hot air flow device, the hot air flow device extends from the feed inlet into the drum device; A scattering device is fixed to the inner wall of the roller device and is located in the reaction chamber. The scattering device is spirally arranged along the axial direction of the roller device.

[0005] The harmless treatment equipment for manganese slag according to the embodiment of the present invention has at least the following beneficial effects: the manganese slag to be treated is put into the reaction chamber of the drum device, the drum device keeps horizontal rotation, and the manganese slag can be continuously turned over and stirred in the reaction chamber; the drug application device delivers the reagent required for the harmless treatment of the manganese slag into the reaction chamber, and the manganese slag can be fully in contact with the reagent; the hot air flow device provides heat to the reaction chamber to accelerate the reaction rate; when the drum device rotates, the mixture of manganese slag and the reagent turns over and falls on the dispersing device, so that the agglomerated mixture of manganese slag and the reagent is dispersed, promoting the mixing of the manganese slag and the reagent, and further increasing the reaction rate; the dispersing device is arranged in an axial spiral along the drum device, and the mixture of manganese slag and the reagent can move from the feed port to the discharge port under the push of the dispersing device during the rotation of the drum device, the feed port can continuously add manganese slag and the reagent, and the discharge port can discharge the treated reactants, so that the manganese slag can be continuously treated harmlessly.

[0006] According to some embodiments of the present invention, the drum device is connected to a gas-solid separation device, which is communicated with the discharge port, and has a first discharge part and a second discharge part, wherein the first discharge part is located at the upper part of the gas-solid separation device, and the second discharge part is located at the lower part of the gas-solid separation device.

[0007] According to some embodiments of the present invention, the roller device is provided with a tubular first connecting part, the first connecting part is located at the discharge port, the outer side wall of the first connecting part is provided with an annular first baffle, the first connecting part is sleeved with a bearing, the gas-solid separation device is provided with a tubular second connecting part, the inner side wall of the second connecting part is provided with an annular second baffle, the second connecting part is sleeved on the first connecting part and matched with the bearing, and the bearing is located between the first baffle and the second baffle, and the space enclosed between the first baffle and the second baffle is filled with grease.

[0008] According to some embodiments of the present invention, the second discharge part is tubular, and the second discharge part is provided with a first screw, the first screw is inserted into the inner side of the second discharge part and is coaxial with the second discharge part, and the first screw is connected to a first driving assembly.

[0009] According to some embodiments of the present invention, the breaking up device includes a plurality of protrusions, which are fixed to the inner wall of the roller device, and the plurality of protrusions are arranged in a spiral along the axial direction of the roller device to form a protrusion group, and the inner wall of the roller device is provided with a plurality of the protrusion groups, and the plurality of the protrusion groups are distributed along the circumference of the roller device.

[0010] According to some embodiments of the present invention, the protrusion is in a conical structure, and the tip of the protrusion points to the central axis of the drum device.

[0011] According to some embodiments of the present invention, the hot air flow device includes an air duct and a plurality of air hoods, the air duct extends into the drum device from the feed port, a plurality of air outlets are opened on the air duct along the axial direction of the air duct, the air outlets are arranged upward, and the air hoods are arranged above the air outlets.

[0012] According to some embodiments of the present invention, an air guide surface is provided on a side of the hood facing the air outlet, and the air guide surface is used to guide the gas discharged from the air outlet so that the flow direction of the gas is opposite to the rotation direction of the drum device.

[0013] According to some embodiments of the present invention, the drug application device includes a liquid supply pipe, which extends from the feed port into the drum device. The liquid supply pipe is provided with a plurality of atomizing nozzles, which are distributed along the axial direction of the liquid supply pipe and are arranged downward.

[0014] According to some embodiments of the present invention, the liquid supply pipe is parallel to the air duct, and the liquid supply pipe is arranged close to the air duct.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is a schematic structural diagram of a harmless treatment device for manganese slag according to an embodiment of the present invention; Figure 2 A schematic structural diagram of a gas-solid separation device according to an embodiment of the present invention; Figure 3 This is a schematic structural diagram of the connection between the first connection part and the second connection part of an embodiment of the present invention; Figure 4 It is an enlarged schematic diagram of the internal structure of the drum device according to an embodiment of the present invention.

[0017] Figure Number: The drum device 100, the first connecting part 110, the first baffle 111, the drug application device 200, the liquid supply pipe 210, the atomizing nozzle 211, the hot air flow device 300, the air duct 310, the air hood 320, the air guide surface 321, the dispersing device 400, the protrusion 410, the gas-solid separation device 500, the first discharge part 510, the second discharge part 520, the second connecting part 530, the second baffle 531, the first screw 540, and the bearing 600. DETAILED DESCRIPTION

[0018] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0019] In the description of the present invention, it should be understood that descriptions involving orientation, such as orientation or positional relationship indicated as up, down, etc., are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, 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 should not be understood as a limitation on the present invention.

[0020] In the description of the present invention, "a plurality" means more than two. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0021] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific content of the technical solution.

[0022] Manganese slag harmless treatment generally includes pyrolysis and wet treatment. Wet method includes water washing method, leaching method, electrochemical method, etc., and pyrolysis includes calcination desulfurization, etc. The above method still has the problem of low treatment efficiency. For example, in wet treatment, the manganese slag after crushing needs to be added to a stirrer, mixed with various additives and stirred to promote the dissolution and separation of pollutants in the manganese slag. In order to fully stir and ensure the treatment effect, the above steps are difficult to be carried out continuously, that is, after a batch of manganese slag stirring reaction is carried out, the manganese slag in the stirrer needs to be discharged, and then new manganese slag is added for stirring. It is difficult to add new manganese slag while discharging the treated manganese slag and ensuring the stirring effect.

[0023] Try to use another dry method to treat manganese slag harmlessly. The dry method refers to treating manganese slag without pyrolysis or wet treatment. By adding alkaline chemicals such as CaO, MgO, Na2CO3 and Na3PO4 to manganese slag, manganese ions will precipitate in the form of manganese oxides or hydroxides, and heavy metals such as manganese ions will be solidified by cementation, adsorption and encapsulation, and heavy metals are not easy to leach. At the same time, the chemical reaction between the stabilizer and the pollutant is used to remove ammonia nitrogen, sulfate, etc., reducing its pollution.

[0024] Reference Figure 1As shown, a harmless treatment device for manganese slag according to an embodiment of the present invention includes a drum device 100, a pesticide application device 200, a hot air flow device 300 and a breaking device 400.

[0025] The drum device 100 has a reaction chamber, one end of the drum device 100 is a material inlet, and the other end is a material outlet. The drum device 100 can rotate and the rotating axis is horizontally arranged.

[0026] The drum device 100 can be driven by a driving wheel to rotate the drum body. For example, two sets of driving wheels are provided, and the two sets of driving wheels are arranged at intervals. One set of driving wheels includes two rollers, and the two rollers are arranged in the same plane. One end of the drum body is placed on the two rollers, and the other end is placed on the other two rollers. The rollers rotate in the same direction to drive the drum body to rotate. The drum device 100 has a reaction chamber, which provides a reaction place for harmless treatment of manganese slag. The manganese slag is put into the drum device 100 from the feed port of the drum device 100, that is, put into the reaction chamber. After the manganese slag reacts in the reaction chamber, it is discharged from the discharge port.

[0027] The drug-applying device 200 extends from the feed port into the drum device 100 , and the drug-applying device 200 is used to put drugs into the reaction chamber.

[0028] Preferably, the reagent is applied in liquid form, which is conducive to mixing and reacting the manganese slag with the reagent, such as applying alkaline Na2CO3 and Na3PO4 solutions.

[0029] After the reagent is mixed with manganese slag, the reagent can react with the water in the manganese slag to form a hydration reaction. The hydration product has the characteristics of large specific surface area, small grains, and many micropores, which has a greater adsorption and wrapping effect on metal ions. The hydration reaction can also form an alkaline environment. In the manganese slag, manganese ions and NH4 + -N reacts chemically to fix the manganese ions in the precipitate, while NH4 + -N is converted into free NH3 or gaseous NH3.

[0030] The hot air flow device 300 extends from the feed port into the drum device 100, and hot air is introduced into the reaction chamber through the hot air flow device 300 to heat the reaction environment, thereby promoting the volatilization of ammonia in the above reaction and improving the efficiency of harmless treatment of manganese slag.

[0031] The scattering device 400 is fixed to the inner wall of the drum device 100 and is located in the reaction chamber. The scattering device 400 is spirally arranged along the axial direction of the drum device 100 .

[0032] Since liquid is added to the manganese slag during the above reaction process, the mixture of the manganese slag and the reagent is easy to form a mass. When the drum device 100 rotates, the mixture of the manganese slag and the reagent flips and falls on the dispersing device 400, so that the agglomerated mixture of the manganese slag and the reagent is dispersed, promoting the mixing of the manganese slag and the reagent, and further improving the reaction rate. The dispersing device 400 is arranged along the axial spiral of the drum device 100. During the rotation of the drum device 100, the mixture of the manganese slag and the reagent can be pushed by the dispersing device 400 to move from the feed port toward the discharge port. The feed port can continuously add manganese slag and the reagent, and the discharge port can discharge the treated reactants, and the manganese slag can be continuously treated harmlessly.

[0033] Reference Figure 2 As shown, it can be understood that the drum device 100 is connected to the gas-solid separation device 500, the gas-solid separation device 500 is connected to the discharge port, and the gas-solid separation device 500 has a first discharge part 510 and a second discharge part 520, the first discharge part 510 is located at the upper part of the gas-solid separation device 500, and the second discharge part 520 is located at the lower part of the gas-solid separation device 500.

[0034] Ammonia is produced during the harmless treatment of manganese slag. A gas-solid separation device 500 is set at the discharge port. The solid product of the manganese slag after treatment is separated from the gaseous product to minimize the leakage of ammonia into the atmosphere. The first discharge part 510 is located at the upper part of the gas-solid separation device 500. The ammonia moves upward with the hot air flow, so the first discharge part 510 is used to discharge ammonia. It should be understood that the first discharge part 510 should be connected to a gas recovery device or a treatment device, rather than directly discharging ammonia into the atmosphere. The solid product after the harmless treatment of manganese slag moves downward under the action of gravity. The second discharge part 520 is located at the lower part of the gas-solid separation device 500, so the second discharge part 520 is used to discharge the solid product after the harmless treatment of manganese slag.

[0035] Reference Figure 3 As shown, it can be understood that the drum device 100 is provided with a tubular first connecting part 110, the first connecting part 110 is located at the discharge port, the outer wall of the first connecting part 110 is provided with an annular first baffle 111, the first connecting part 110 is mounted with a bearing 600, the gas-solid separation device 500 is provided with a tubular second connecting part 530, the inner wall of the second connecting part 530 is provided with an annular second baffle 531, the second connecting part 530 is mounted on the first connecting part 110 and is matched with the bearing 600, and the bearing 600 is located between the first baffle 111 and the second baffle 531, and the space enclosed between the first baffle 111 and the second baffle 531 is filled with grease.

[0036] The gas-solid separation device 500 is fixed, while the drum device 100 needs to rotate, that is, relative rotation occurs between the drum device 100 and the gas-solid separation device 500. The second connection part 530 of the gas-solid separation device 500 is mounted on the first connection part 110, and the gap between the first connection part 110 and the second connection part 530 can be filled with grease, which has a certain air tightness. Since the drum device 100 is not a pressure vessel, although the air pressure in the reaction chamber is greater than the air pressure of the external environment, the differential pressure is not enough to push the grease out of the space enclosed by the first baffle 111 and the second baffle 531. It should be understood that the first baffle 111 arranged at the first connection part 110 can be as close to the inner wall of the second connection part 530 as possible. Similarly, the second baffle 531 arranged at the second connection part 530 also needs to be as close to the outer wall of the first connection part 110 as possible, which can improve the limiting effect on the grease. It should be understood that the grease mainly lubricates the bearing 600. Due to its high viscosity and poor fluidity, it can also simultaneously perform a sealing effect. Of course, the space enclosed by the first baffle 111 and the second baffle 531 needs to be filled with grease.

[0037] It is understandable that the second discharge part 520 is tubular, and the second discharge part 520 is provided with a first screw 540, which is inserted into the inner side of the second discharge part 520 and is coaxial with the second discharge part 520, and the first screw 540 is connected to the first driving assembly.

[0038] The second discharge part 520 adopts a screw type discharge, and the first drive component drives the first screw 540 to rotate, and squeezes the product after the harmless treatment of manganese slag out of the second discharge part 520. The first drive component can be a motor. It should be understood that after the product after the harmless treatment of manganese slag is pushed and squeezed by the first screw 540, it can fill the gap in the second discharge part 520 and prevent the gas in the gas-solid separation device 500 from escaping from the second discharge part 520. Of course, under normal circumstances, ammonia is lighter than air and will move directly upwards. This structure belongs to a safety redundant design.

[0039] Reference Figure 4 As shown, it can be understood that the breaking up device 400 includes a plurality of protrusions 410, which are fixed to the inner wall of the drum device 100, and the plurality of protrusions 410 are arranged in an axial spiral along the drum device 100 to form a protrusion group, and the inner wall of the drum device 100 is provided with a plurality of protrusion groups, and the plurality of protrusion groups are distributed along the circumference of the drum device 100.

[0040] When the drum device 100 rotates, the protrusions 410 will also move with the drum device 100, and the mixture of manganese slag and reagents at the bottom of the drum device 100 will be driven by the protrusions 410 to move upward with the rotation of the drum device 100. When the protrusions 410 no longer hold up the mixture, the mixture falls and hits the protrusions 410 below, which can break up the agglomerated mixture, promote the mixing of manganese slag and reagents, and improve the reaction efficiency.

[0041] It can be understood that, preferably, the protrusion 410 has a conical structure, and the tip of the protrusion 410 points to the central axis of the drum device 100 .

[0042] It can be understood that the hot air flow device 300 includes an air duct 310 and multiple air hoods 320. The air duct 310 extends into the drum device 100 from the feed port. The air duct 310 is provided with multiple air outlets along the axial direction of the air duct 310. The air outlets are arranged upward, and the air hoods 320 are arranged above the air outlets.

[0043] Hot air can be transported through the air duct 310 and evenly distributed into the reaction chamber from the air outlet of the air duct 310. In order to distribute the hot air more evenly in the reaction chamber, the air outlet is arranged upward, and in order to prevent manganese slag from falling into the air outlet, a hood 320 is arranged above the air outlet. It should be understood that the projection of the hood 320 can cover the air outlet, but the hood 320 does not block the air outlet. Further, a curved guide surface can be provided on the side surface of the hood 320 away from the air outlet to guide the manganese slag falling on the surface of the hood 320 to the side of the air duct 310.

[0044] It is understandable that a gas guiding surface 321 is provided on one side of the hood 320 facing the air outlet, and the gas guiding surface 321 is used to guide the gas discharged from the air outlet so that the flow direction of the gas is opposite to the rotation direction of the drum device 100 .

[0045] After being ejected from the air outlet, the hot air encounters the air guide surface 321, and the air flow direction is changed by the guiding effect of the air guide surface 321. Preferably, the gas flow direction of the hot air is opposite to the rotation direction of the drum device 100, which can achieve a convection effect.

[0046] It can be understood that the drug application device 200 includes a liquid supply pipe 210, which extends from the feed port into the drum device 100. The liquid supply pipe 210 is provided with a plurality of atomizing nozzles 211, which are distributed along the axial direction of the liquid supply pipe 210 and are arranged downward.

[0047] The agent is preferably a liquid agent, which can be fed into the reaction chamber through the liquid supply pipe 210. The liquid supply pipe 210 extends from the feed port into the reaction chamber, so the liquid supply pipe 210 is generally parallel to the axial direction of the drum device 100, and a plurality of atomizing nozzles 211 are distributed along the axial direction of the liquid supply pipe 210, so that the agent can be evenly applied in the reaction chamber.

[0048] It can be understood that the liquid supply pipe 210 is parallel to the air pipe 310 , and the liquid supply pipe 210 is disposed close to the air pipe 310 .

[0049] The heat in the air duct 310 can be transferred to the reagent through the liquid supply pipe 210, and preheating the reagent is beneficial to promoting the reaction.

[0050] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A harmless treatment device for manganese slag, characterized in that: include: A roller device (100), the roller device (100) having a reaction chamber, one end of the roller device (100) being a material inlet, and the other end being a material outlet, the roller device (100) being rotatable and the rotation axis being arranged horizontally; A medicine applying device (200), the medicine applying device (200) extending from the material inlet into the drum device (100), the medicine applying device (200) being used to put medicine into the reaction chamber; A hot air flow device (300), the hot air flow device (300) extending from the feed inlet into the drum device (100); A scattering device (400), the scattering device (400) is fixed to the inner wall of the roller device (100) and is located in the reaction chamber, and the scattering device (400) is spirally arranged along the axial direction of the roller device (100).

2. The harmless treatment equipment for manganese slag according to claim 1, characterized in that: The drum device (100) is connected to a gas-solid separation device (500), the gas-solid separation device (500) is in communication with the discharge port, and the gas-solid separation device (500) comprises a first discharge portion (510) and a second discharge portion (520), wherein the first discharge portion (510) is located at an upper portion of the gas-solid separation device (500), and the second discharge portion (520) is located at a lower portion of the gas-solid separation device (500).

3. The harmless treatment equipment for manganese slag according to claim 2, characterized in that: The drum device (100) is provided with a tubular first connecting part (110), the first connecting part (110) is located at the discharge port, the outer wall of the first connecting part (110) is provided with an annular first baffle (111), the first connecting part (110) is sleeved with a bearing (600), the gas-solid separation device (500) is provided with a tubular second connecting part (530), the inner wall of the second connecting part (530) is provided with an annular second baffle (531), the second connecting part (530) is sleeved on the first connecting part (110) and is matched with the bearing (600), and the bearing (600) is located between the first baffle (111) and the second baffle (531), and the space enclosed between the first baffle (111) and the second baffle (531) is filled with grease.

4. The harmless treatment equipment for manganese slag according to claim 2, characterized in that: The second discharge part (520) is tubular, and the second discharge part (520) is provided with a first screw (540). The first screw (540) is inserted into the inner side of the second discharge part (520) and is coaxial with the second discharge part (520), and the first screw (540) is connected to a first driving assembly.

5. The harmless treatment equipment for manganese slag according to claim 1, characterized in that: The scattering device (400) comprises a plurality of protrusions (410), the protrusions (410) being fixed to the inner wall of the roller device (100), the plurality of protrusions (410) being arranged in a spiral along the axial direction of the roller device (100) to form a protrusion group, the inner wall of the roller device (100) being provided with a plurality of the protrusion groups, and the plurality of the protrusion groups being distributed along the circumference of the roller device (100).

6. The harmless treatment equipment for manganese slag according to claim 5, characterized in that: The protrusion (410) has a conical structure, and the tip of the protrusion (410) points towards the central axis of the roller device (100).

7. The harmless treatment equipment for manganese slag according to claim 1, characterized in that: The hot air flow device (300) comprises an air duct (310) and a plurality of air hoods (320); the air duct (310) extends from the material inlet into the drum device (100); a plurality of air outlets are provided on the air duct (310) along the axial direction of the air duct (310); the air outlets are arranged upward; and the air hoods (320) are arranged above the air outlets.

8. The harmless treatment equipment for manganese slag according to claim 7, characterized in that: The hood (320) is provided with an air guide surface (321) on one side facing the air outlet, and the air guide surface (321) is used to guide the air discharged from the air outlet so that the flow direction of the air is opposite to the rotation direction of the drum device (100).

9. The harmless treatment equipment for manganese slag according to claim 7, characterized in that: The drug application device (200) comprises a liquid supply pipe (210), the liquid supply pipe (210) extending from the feed port into the drum device (100), the liquid supply pipe (210) being provided with a plurality of atomizing nozzles (211), the atomizing nozzles (211) being distributed along the axial direction of the liquid supply pipe (210), and the atomizing nozzles (211) being arranged downward.

10. The harmless treatment equipment for manganese slag according to claim 9, characterized in that: The liquid supply pipe (210) is parallel to the air pipe (310), and the liquid supply pipe (210) is arranged close to the air pipe (310).

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