CN219169190U - High-efficient quick innocent treatment system of aluminium phosphide residue - Google Patents
High-efficient quick innocent treatment system of aluminium phosphide residue Download PDFInfo
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- CN219169190U CN219169190U CN202223003539.1U CN202223003539U CN219169190U CN 219169190 U CN219169190 U CN 219169190U CN 202223003539 U CN202223003539 U CN 202223003539U CN 219169190 U CN219169190 U CN 219169190U
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Abstract
An efficient, rapid and harmless treatment system for aluminum phosphide residues comprises a pretreatment device, a reaction device, a dust removal device, a tail gas absorption and purification device I and a tail gas absorption and purification device II; the system can effectively crush and grind the aluminum phosphide residues, fully react with water, alkaline agent and oxidant through stirring, homogenizing and aeration to release the aluminum phosphide residues completely without residues, and prevent dust of the aluminum phosphide residues and leakage of hydrogen phosphide gas to pollute the atmosphere and damage human health. Meanwhile, the system reduces the direct contact of operators with aluminum phosphide residues to the greatest extent, and reduces the safety and health risks. The system is simple, efficient, quick, safe and environment-friendly, can be put into actual production for mass treatment, and realizes efficient, quick and harmless treatment.
Description
Technical Field
The utility model belongs to the technical field of harmless treatment of hazardous waste, and particularly relates to a high-efficiency and rapid harmless treatment system for aluminum phosphide residues.
Background
Aluminum phosphide is widely used for fumigating, disinfestation and deratization of grains, seeds, medicinal materials, tobacco and other articles, the annual discharge amount of aluminum phosphide residues is about 5 ten thousand tons, and aluminum phosphide generally contains 1% -2% of aluminum phosphide which is not completely decomposed after being used. The non-decomposed aluminum phosphide can be slowly hydrolyzed at room temperature to generate highly toxic and inflammable phosphine gas, so that serious harm and potential safety hazard are brought to the environment and operators, and how to carry out harmless treatment on aluminum phosphide residues becomes one of important subjects of dangerous waste industry research.
At present, the utility model patent CN200420098305.2 and the utility model patent CN03123584.0 are aimed at such wastes, phosphine in the treated residues is zero, but the phosphine after the hydrolysis of aluminum phosphide is directly discharged into the atmosphere, the problem of environmental pollution is not solved at all, and the problem is more remarkable. Patent CN201410342967.8 is a residue disposal patent technology, and although a chemical treatment method is adopted, the main method used in the early stage of treatment is that an oxidant and an acid are liable to react with aluminum phosphide violently to burn and explode, so that a great potential safety hazard exists. Although the patents CN104085867 and CN 201610335295.7 thoroughly solve the problem of phosphine pollution, the system is complex, the treatment capacity is relatively small, and the problems of centralized generation and huge quantity of aluminum phosphide residues facing enterprises such as grain depots cannot be effectively solved. Neither patent carries out pretreatment and dust removal, and the aluminum phosphide residues are partially agglomerated and hardened after temporary storage and transportation and are required to be crushed and milled, so that dust generated by large-batch treatment is not negligible, and therefore, a high-efficiency, rapid and harmless treatment system for the aluminum phosphide residues is needed.
Disclosure of Invention
Aiming at the technical problems, the utility model provides a high-efficiency and rapid innocent treatment system for aluminum phosphide residues, which comprises the following specific technical scheme:
an efficient, rapid and harmless treatment system for aluminum phosphide residues comprises a pretreatment device, a reaction device, a dust removal device, a tail gas absorption and purification device I and a tail gas absorption and purification device II;
the pretreatment device comprises a closed box body, wherein a 1# door is arranged on the closed box body, a 2# door is arranged below the 1# door, a 1# conveyor is arranged on the 1# door, a crusher is arranged at the tail end of the 1# conveyor, a filter screen is arranged below the crusher, a 2# conveyor is arranged on the 2# door, one end of the 2# conveyor is connected with the filter screen, the other end of the 2# conveyor is connected with the collecting box, a grinder is arranged below the filter screen, and the grinder is connected with the material conveyor; a primary fan is arranged on the closed box body, one end of the primary fan is connected with the closed box body, and the other end of the primary fan is connected with the reaction device through a pipeline;
the reaction device is connected with the dust removal device through a secondary fan, the dust removal device is connected with the tail gas absorption and purification device I through a tertiary fan, the tail gas absorption and purification device I is connected with the tail gas absorption and purification device II through a quaternary fan, the tail gas absorption and purification device II is connected with the phosphine gas detector, the tail end of the hydrogen chloride gas detector is connected with a return exhaust fan, and the return exhaust fan is connected with the tail gas absorption and purification device I;
the dust removing device is provided with a water inlet, and dust removing cloth is arranged inside the dust removing device;
the exhaust gas purifying device I and the exhaust gas purifying device II are respectively provided with a liquid adding port I and a liquid adding port II, and the inside of the exhaust gas purifying device I and the inside of the exhaust gas purifying device II are respectively provided with a gas uniform distributor I and a gas uniform distributor II.
Preferably, a reaction device jacket is arranged on the reaction device, a gas-liquid outlet and a gas-liquid inlet are arranged on the reaction device jacket, a stirring paddle motor is arranged at the top of the reaction device, the stirring paddle motor is connected with a stirring paddle with holes in the reaction device, a high-pressure water inlet, a pressure gauge and a safety valve are arranged at the top of the reaction device, a glass observation port is arranged on the reaction device, a solid feed port is arranged on the side surface of the reaction device, the solid feed port is connected with a material conveyor, a spiral discharge machine and a homogenizer are arranged at the bottom of the reaction device, and a temperature sensor is arranged on the reaction device;
and the reaction device is also provided with an aeration air inlet.
The system can effectively crush and grind the aluminum phosphide residues, fully react with water, alkaline agent and oxidant through stirring, homogenizing and aeration to release the aluminum phosphide residues completely without residues, and prevent dust of the aluminum phosphide residues and leakage of hydrogen phosphide gas to pollute the atmosphere and damage human health. Meanwhile, the system reduces the direct contact of operators with aluminum phosphide residues to the greatest extent, and reduces the safety and health risks. The system is simple, efficient, quick, safe and environment-friendly, can be put into actual production for mass treatment, and realizes efficient, quick and harmless treatment.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of a perforated stirring paddle according to the present utility model;
in the figure, 1 is a pretreatment device, 2 is a reaction device, 3 is a dust removal device, 4 is an exhaust gas absorption and purification device I, 5 is an exhaust gas absorption and purification device II,601 is a phosphine gas detector, and 701 is a return exhaust fan;
101 is a No. 1 conveyor, 102 is a No. 1 door, 103 is a pressure gauge, 104 is a closed box, 105 is a crusher, 106 is a filter screen, 107 is a primary fan, 108 is a No. 2 door, 109 is a No. 2 conveyor, 110 is a collecting box, 111 is a mill, and 112 is a material conveyor;
201 is a reaction device jacket, 202 is a gas-liquid outlet, 203 is a solid feed inlet, 204 is an air inlet pipeline, 205 is a liquid feed inlet, 206 is a stirring paddle motor, 207 is a high-pressure water inlet, 208 is a pressure gauge, 209 is a safety valve, 210 is a glass observation port, 211 is a secondary fan, 212 is a perforated stirring paddle, 213 is a gas-liquid inlet, 214 is a screw discharger, 215 is a homogenizer, 216 is an aeration air inlet, and 217 is a temperature sensor;
301 is a water inlet, 302 is dust cloth, and 303 is a three-stage fan; 401 liquid adding ports I and 501 are liquid adding ports II,402 gas uniform distribution devices I and 502 are gas uniform distribution devices II, and 403 are four-stage fans.
Detailed Description
For the purpose of better illustrating the embodiments, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the actual product dimensions; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. It will be understood by those of ordinary skill in the art that the terms described above are in the specific sense of the present utility model. The technical scheme of the utility model is further described below with reference to the accompanying drawings and examples.
As shown in FIG. 1, the high-efficiency rapid harmless treatment system for the aluminum phosphide residues comprises a pretreatment device 1, a reaction device 2, a dust removal device 3, a tail gas absorption and purification device I4 and a tail gas absorption and purification device II5;
the pretreatment device 1 comprises a closed box 104, wherein a 1# door 102 is arranged on the closed box 104, a 2# door 108 is arranged below the 1# door 102, a 1# conveyor 101 is arranged on the 1# door 102, a crusher 105 is arranged at the tail end of the 1# conveyor 101, a filter screen 106 is arranged below the crusher 105, a 2# conveyor 109 is arranged on the 2# door, one end of the 2# conveyor 109 is connected with the filter screen 106, the other end of the 2# conveyor 109 is connected with a collecting box 110, a grinder 111 is arranged below the filter screen 106, and the grinder 111 is connected with a material conveyor 112; a primary fan 107 is arranged on the closed box 104, one end of the primary fan 107 is connected with the closed box 104, and the other end is connected with the reaction device 2 through a pipeline;
the reaction device 2 is connected with the dust removing device 3 through a secondary fan 211, the dust removing device 3 is connected with the tail gas absorbing and purifying device I4 through a tertiary fan 303, the tail gas absorbing and purifying device I4 is connected with a tail gas absorbing and purifying device II5 through a quaternary fan 403, the tail gas absorbing and purifying device II5 is connected with a phosphine gas detector 601, the tail end of the phosphine gas detector 601 is connected with a return exhaust fan 701, and the return exhaust fan 701 is connected with the tail gas absorbing and purifying device I4;
a water adding port 301 is arranged on the dust removing device 3, and dust removing cloth 302 is arranged inside the dust removing device 3;
the exhaust gas absorption and purification device I4 and the exhaust gas absorption and purification device II5 are respectively provided with a liquid filling opening I401 and a liquid filling opening II501, and the inside of the exhaust gas absorption and purification device I4 and the inside of the exhaust gas absorption and purification device II5 are respectively provided with a gas uniform distributor I402 and a gas uniform distributor II502.
Preferably, a reaction device jacket 201 is arranged on the reaction device 2, a gas-liquid outlet 202 and a gas-liquid inlet 213 are arranged on the reaction device jacket 201, a stirring paddle motor 206 is arranged at the top of the reaction device 2, the stirring paddle motor 206 is connected with a stirring paddle 212 with holes in the reaction device 2, a high-pressure water inlet 207, a pressure gauge 208 and a safety valve 209 are arranged at the top of the reaction device 2, a glass observation port 210 is arranged on the reaction device 2, a solid feed port 203 is arranged on the side surface of the reaction device 2, the solid feed port 203 is connected with a material conveyor 112, a screw discharging machine 214 and a homogenizer 215 are arranged at the bottom of the reaction device 2, and a temperature sensor 217 is arranged on the reaction device 2;
an aeration inlet 216 is also provided on the reactor 2.
The reaction device 2 is also provided with a liquid feeding hole 205, and the high-pressure water inlet 207 is connected with a stirring paddle 212 with holes.
When the high-efficiency rapid harmless treatment system for aluminum phosphide residues is used, a certain amount of absorption liquid is added into a dust removal device 3, a tail gas absorption and purification device I4 and a tail gas absorption and purification device II 5. First, the primary fan 107, the secondary fan 211, the tertiary fan 303 and the quaternary fan 403 are started. When the inside of the box body of the pretreatment device 104 is slightly negative pressure, the crusher 105 is started, and the mill 111,1# conveyor 101 and the 2# conveyor 109 are crushed. The aluminum phosphide residue is placed on a No. 1 conveyor 101, and meanwhile, a feed inlet of a reaction device 205 is started to add circulating alkali liquor or waste heat boiler sewage according to the amount of the aluminum phosphide residue to be treated. The stirring device 212 is then turned on, the valve is turned on and the material conveyor is turned on 112 to allow stirring reaction. And closing the pretreatment equipment after the aluminum phosphide residues in the pretreatment device are completely pretreated and no material is conveyed, and closing the material conveyor and the valve.
The homogenizer 215 is opened to homogenize, and the aeration port 216 is opened to perform aeration after homogenization, so that the materials fully react for 3 hours, and water or water vapor is introduced from the gas-liquid inlet 213 for cooling or heating according to the untimely reaction condition during the reaction. And when observing that no bubbles are generated in the reaction materials, starting the liquid feed port 205 to add hydrogen peroxide for reaction until no aluminum phosphide residue is finally taken as an end point. And after the reaction is finished, opening 214 a discharging machine, and discharging the treated aluminum phosphide residues. After the device is put, 212 the stirring paddle with the holes is started, and 207 the high-pressure water inlet is opened for cleaning the device. If the phosphine gas detector 601 gives an alarm in the reaction process, the absorption liquid is replaced in time, and the return exhaust fan is started 701 to suck the gas at the moment into the tail gas absorption and purification device I4 and the tail gas absorption and purification device II5 for re-absorption and purification.
The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings, but the present utility model is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the utility model, and yet fall within the scope of the utility model.
Claims (2)
1. The high-efficiency rapid harmless treatment system for the aluminum phosphide residues is characterized by comprising a pretreatment device (1), a reaction device (2), a dust removal device (3), a tail gas absorption and purification device I (4) and a tail gas absorption and purification device II (5);
the pretreatment device (1) comprises a closed box body (104), wherein a 1# door (102) is arranged on the closed box body (104), a 2# door (108) is arranged below the 1# door (102), a 1# conveyor (101) is arranged on the 1# door (102), a crusher (105) is arranged at the tail end of the 1# conveyor (101), a filter screen (106) is arranged below the crusher (105), a 2# conveyor (109) is arranged on the 2# door, one end of the 2# conveyor (109) is connected with the filter screen (106), the other end of the 2# conveyor is connected with a collecting box (110), a grinder (111) is arranged below the filter screen (106), and the grinder (111) is connected with a material conveyor (112); a primary fan (107) is arranged on the closed box body (104), one end of the primary fan (107) is connected with the closed box body (104), and the other end of the primary fan is connected with the reaction device (2) through a pipeline;
the reaction device (2) is connected with the dust removing device (3) through a secondary fan (211), the dust removing device (3) is connected with the tail gas absorbing and purifying device I (4) through a tertiary fan (303), the tail gas absorbing and purifying device I (4) is connected with the tail gas absorbing and purifying device II (5) through a quaternary fan (403), the tail gas absorbing and purifying device II (5) is connected with the phosphine gas detector (601), the tail end of the phosphine gas detector (601) is connected with a return exhaust fan (701), and the return exhaust fan (701) is connected with the tail gas absorbing and purifying device I (4);
a water adding port (301) is arranged on the dust removing device (3), and dust removing cloth (302) is arranged inside the dust removing device (3);
the device is characterized in that the liquid filling opening I (401) and the liquid filling opening II (501) are respectively arranged on the tail gas absorption and purification device I (4) and the tail gas absorption and purification device II (5), and the gas equipartition device I (402) and the gas equipartition device II (502) are respectively arranged inside the tail gas absorption and purification device I (4) and the tail gas absorption and purification device II (5).
2. The high-efficiency rapid harmless treatment system for aluminum phosphide residues is characterized in that a reaction device jacket (201) is arranged on the reaction device (2), a gas-liquid outlet (202) and a gas-liquid inlet (213) are arranged on the reaction device jacket (201), a stirring paddle motor (206) is arranged at the top of the reaction device (2), the stirring paddle motor (206) is connected with a stirring paddle (212) with holes in the reaction device (2), a high-pressure water inlet (207), a pressure gauge (208) and a safety valve (209) are arranged at the top of the reaction device (2), a glass observation port (210) is arranged on the reaction device (2), a solid feed port (203) is arranged on the side face of the reaction device (2), the solid feed port (203) is connected with a material conveyor (112), a screw (214) and a homogenizer (215) are arranged at the bottom of the reaction device (2), and a temperature sensor (217) is arranged on the reaction device (2);
an aeration air inlet (216) is also arranged on the reaction device (2).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202223003539.1U CN219169190U (en) | 2022-11-11 | 2022-11-11 | High-efficient quick innocent treatment system of aluminium phosphide residue |
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| CN202223003539.1U CN219169190U (en) | 2022-11-11 | 2022-11-11 | High-efficient quick innocent treatment system of aluminium phosphide residue |
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| CN219169190U true CN219169190U (en) | 2023-06-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117816103A (en) * | 2024-03-05 | 2024-04-05 | 中央储备粮三明直属库有限公司 | Medicine dreg purifying and separating device and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117816103A (en) * | 2024-03-05 | 2024-04-05 | 中央储备粮三明直属库有限公司 | Medicine dreg purifying and separating device and method |
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