CN209866952U - Waste residue grinds soaks detoxify and degasification integrated processing system - Google Patents
Waste residue grinds soaks detoxify and degasification integrated processing system Download PDFInfo
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- CN209866952U CN209866952U CN201920734542.XU CN201920734542U CN209866952U CN 209866952 U CN209866952 U CN 209866952U CN 201920734542 U CN201920734542 U CN 201920734542U CN 209866952 U CN209866952 U CN 209866952U
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Abstract
The utility model discloses a waste residue grinds to soak and detoxifies and integrated processing system that outgases, including the waste residue pretreatment systems who connects gradually, auxiliary agent allotment system, grind and soak conversion system, ground paste solid-liquid separation system and gas collecting system, send into the waste residue after the preliminary treatment and auxiliary agent and grind and soak in the conversion machine and grind and convert, carry out the washing absorption after collecting the gas that the reaction produced, then carry out high temperature combustion or harmless emission, the ground paste that generates carries out solid-liquid separation and handles, the solid sediment further is used for industrial chemicals or building material to use. The utility model discloses handle the waste residue that contains harmful ingredients such as fluorine, chlorine, sulphur, phosphorus, ammonia nitrogen, oxide, organic matter, soak the conversion through the mill, carry out resource utilization or innocent treatment with the gas that produces, realize cleaner production.
Description
Technical Field
The invention belongs to a waste residue detoxification and degassing treatment system, and particularly relates to a waste residue grinding, soaking, detoxification and degassing integrated treatment system.
Background
With the rapid development of social economy, industrial waste residues are increasing day by day, which not only causes great pressure on urban environment, but also limits the development of cities. Therefore, the disposal of these wastes is important from the viewpoint of environmental protection. At present, the technical level of solid waste residue treatment in China is low, and the existing treatment method of waste residue mainly comprises the following steps: resource utilization, storage and disposal, and the rest is discharged into the natural environment to directly pollute rivers, lakes and rivers. The whole management system needs to be repeatedly searched and discussed in practice. The development of a solid waste residue treatment technical system suitable for the characteristics of China is necessary.
The waste slag refers to various industrial waste slag discharged in the industrial production processes of mining, smelting, chemical industry and the like. Because the types of raw materials, reaction conditions, secondary recovery modes and the like used in the production process are different, the chemical components, mineral compositions and the like of the generated waste residues are greatly different. The total variety is various, the components are complex, the quantity is large, and part of the components are toxic, so that the difficulty of treatment and recycling is greatly increased.
The waste residues have obvious duality, on one hand, the random stacking of the waste residues has direct or potential harm to the environmental ecology, and on the other hand, the chemical waste residues contain a large amount of available resources. The existing utilization approach in China mainly comprises the steps of extracting alkali, acid and other valuable metals from waste residues, and producing building material products such as cement and bricks, fertilizers and the like by using the waste residues. The disposal modes have positive significance in industry and have obvious social, economic and environmental benefits. Because the components of the waste residues are complex, particularly for a large amount of waste residues containing harmful components such as fluorine, chlorine, sulfur, phosphorus, ammonia nitrogen, organic matters and the like, for example, the barium residues contain BaS, the electrolytic aluminum waste residues contain NaF, the ammonium alum residues and the electrolytic manganese residues contain ammonium ions and the like, the waste residues can only be stockpiled or buried at present, the content of toxic substances in the sediments is continuously increased along with the passage of time, long-term threat to drinking water sources and the life of residents is possibly caused, the personal safety of surrounding masses is not facilitated, the conflict between the masses and enterprises is easily caused, the environmental protection and the sustainable development of social economy are not facilitated, and under the existing disposal process conditions, the treatment of the waste residues easily generates harmful toxic gases, and the serious influence is generated on the environment, the human health, the resource recycling of the waste residues and the comprehensive utilization of resources.
Therefore, how to collect and eliminate the possible secondary pollution of toxic and harmful gases to the environment in the process of realizing resource utilization by detoxification of waste residues is solved, clean production is realized, the method is a basic subject to be solved for realizing harmless and quantitative reduction treatment, and the method is a prerequisite for resource utilization of waste residues.
SUMMERY OF THE UTILITY MODEL
In order to overcome the problem among the prior art, the utility model provides a waste residue grinds to soak and detoxify and degasification integrated processing system soaks the conversion through grinding and detoxify and degasification with industrial waste residue under the effect of auxiliary agent under the prerequisite that satisfies environmental protection and safety in production, make the waste residue turn into the solid of being difficult to water and the gas that can volatilize, insoluble gas collects or high temperature incineration treatment under the auxiliary agent effect to realize the innoxious of waste residue, the minimizing, resourceful treatment, realize the cyclic utilization of waste residue.
In order to achieve the above object, the utility model discloses a following technical scheme realizes:
the utility model provides a waste residue grinds soaks integrated processing system that detoxifies and degasses, includes waste residue pretreatment systems, auxiliary agent allotment system, grinds that connects gradually and soaks conversion system, ground paste solid-liquid separation system and gas collection system, waste residue grinds soaks the integrated processing system that detoxifies and degasses and adopts sealing device to set up the suction machine and be used for forming the little negative pressure.
The waste residue pretreatment system comprises a discharging room, a first feeding machine and a first stirring pool which are arranged in sequence; the auxiliary agent blending system comprises an auxiliary agent bin, a second feeding machine and a second stirring tank which are sequentially arranged; the grinding and leaching conversion system comprises a grinding and leaching converter; the slurry solid-liquid separation system comprises a third stirring tank, a filtering device, a settling tank and a residue piling shed, wherein the filtering device is respectively connected with the third stirring tank, the settling tank and the residue piling shed; the gas collection system comprises a washing absorption tower, a liquid storage tank, a fourth stirring tank and an insoluble gas treatment device, wherein the washing absorption tower is respectively connected with the liquid storage tank, the fourth stirring tank and the insoluble gas treatment device.
Grind and soak conversion machine and include base, drive arrangement, transmission and barrel are connected in order, the barrel is located the base, the barrel includes grinder shell, feed inlet, pivot, dispersion blade, gas collection room, gas vent and discharge gate, the feed inlet sets up in grinder shell one side, the discharge gate sets up in grinder shell opposite side, the one end of pivot with transmission links to each other, and the other end stretches into and grinds inside the conversion machine barrel, equidistant distribution has a plurality of dispersion blade in the pivot, the gas collection room sets up in the upper portion of grinder shell, the gas vent sets up in gas collection room upper portion.
Further, the grinding machine shell is of a double-layer structure, a heat insulation layer can be added, and a heat medium can be introduced for heating or a refrigerant can be introduced for cooling, so that the temperature required by conversion is ensured, and the heating or cooling function is realized.
Furthermore, the number of the feed inlets is more than or equal to 2, and the grinding and leaching conversion machine is provided with a plurality of feed inlets, so that simultaneous feeding of various substances can be realized.
Further, the gas vent is provided with gaseous sample connection, the discharge gate is provided with thick liquids sample connection, sets up gaseous sample connection and thick liquids sample connection and can realize detecting the conversion reaction resultant to realize the abundant reaction of waste residue.
Further, grind and soak converter gas collection room, gas vent and discharge gate and be provided with pressure monitor, temperature monitor, pH value monitor, pressure monitor, flow monitor and pH value monitor are continuous with the computer control system of peripheral hardware respectively, through computer control, realize grinding and soak the intelligent control of converter.
Further, the driving device is an electric motor, and the electric motor is in transmission connection with the transmission device through a belt.
Further, the grinding and leaching conversion machine is a horizontal grinding and leaching conversion machine, the driving device, the transmission device and the barrel of the horizontal grinding and leaching conversion machine are arranged on the same horizontal direction and are sequentially connected, the rotating shaft is horizontally arranged, one end of the rotating shaft is connected with the transmission device through a bearing, the other end of the rotating shaft extends into the barrel of the grinding and leaching conversion machine, and the dispersing blades are vertically arranged on the rotating shaft at equal intervals.
Further, the grinding and leaching conversion machine is a vertical grinding and leaching conversion machine, a driving device and a transmission device of the vertical grinding and leaching conversion machine are arranged at the top of the cylinder and are sequentially connected, the rotating shaft is vertically arranged, one end of the rotating shaft is connected with the transmission device through a bearing, the other end of the rotating shaft penetrates through the gas collecting chamber and extends into the cylinder of the grinding and leaching conversion machine, and the dispersing blades are vertically arranged on the rotating shaft at equal intervals.
Furthermore, the number of the third stirring tanks is more than or equal to 1, a plurality of third stirring tanks are arranged, and gap operation is adopted to accelerate the volatilization and removal of the gas.
Furthermore, the waste residue grinding, soaking, detoxifying and degassing integrated treatment system is connected with each other through a closed pipeline, a metering instrument and a variable-frequency speed-regulating pump are arranged in the closed pipeline, metering and conveying are achieved through the metering instrument, the variable-frequency speed-regulating pump is a slurry pump or a liquid pump, and acid-resistant or alkali-resistant materials are selected for the variable-frequency speed-regulating pump and the pipeline according to the characteristics of reaction media.
Further, be provided with pressure monitor, flow monitor, pH value monitor and gas analysis appearance in the airtight pipeline, pressure monitor, flow monitor, pH value monitor and gas analysis appearance link to each other with the computer control system of peripheral hardware respectively, and all data pass through the computer processing, establish central control system and guide production, realize on-line monitoring.
Furthermore, an automobile discharging pit and an automobile cleaning and disinfecting device are arranged in the discharging room, and the discharging room is of a closed-chamber concrete wall structure and is provided with an automatic rotary gate and an air suction opening.
Further, the filtering equipment is one or more of a plate-and-frame filter press, a belt filter press, a screw filter press and a centrifugal separator.
A treatment method of a waste residue grinding, soaking, detoxifying and degassing integrated treatment system comprises the following steps:
s1, waste residue pretreatment: conveying the waste residues into a discharge pit of a discharge room by a special vehicle, metering by a first feeding machine, then sending into a first stirring pool, adding 0.3-5 times of water, and uniformly stirring to prepare the required slurry A;
s2, blending auxiliaries: conveying the first auxiliary agent to an auxiliary agent bin for storage through a special vehicle, metering the first auxiliary agent by a second feeding machine, conveying the first auxiliary agent into a second stirring pool, adding 0.3-5 times of water, and uniformly stirring to prepare a required solution B;
s3, grinding and leaching conversion: the slurry prepared in the step S1 and the solution prepared in the step S2 are sent into a grinding and leaching conversion machine by a transfer pump according to the stoichiometric ratio of 1 (0.5-1) to carry out grinding and conversion reaction to generate slurry C and gas D;
s4, slurry solid-liquid separation: stirring the slurry C generated in the step S3 until the reaction gas is exhausted, performing solid-liquid separation by using filtering equipment to obtain a solution E and solid slag, standing the solution E, returning the supernatant to the first stirring tank or the second stirring tank, standing, precipitating, returning the precipitate to the filtering equipment, and performing solid-liquid separation, wherein the solid slag is harmless waste slag and is used as a chemical raw material or a building material raw material;
s5, gas collection treatment: and (4) washing and absorbing the gas D generated in the step (S3) by using a second auxiliary agent to obtain liquid F and insoluble gas G, wherein the liquid F is sent to a liquid storage tank for storage and is used as a chemical raw material, and the insoluble gas G is collected or incinerated at high temperature.
Further, the first auxiliary agent in step S2 is one of caustic soda, soda ash, lime, carbide slag, steel slag, sulfuric acid, hydrochloric acid, ammonium salt, iron salt, manganese salt, and magnesium salt in step S2.
Further, when the gas D generated at step S3 is an acidic gas, the second assistant is an alkaline or neutral liquid, and when the gas D generated at step S3 is an alkaline gas, the second assistant is an acidic or neutral liquid.
The solid slag generated from the treated waste slag is harmless waste slag and can be further used as chemical raw materials or building raw materials, and the generated insoluble gas can be incinerated at high temperature or discharged harmlessly.
The utility model has the advantages as follows:
(1) the utility model discloses to the waste residue treatment in harmful components such as fluorine, chlorine, sulphur, phosphorus, ammonia nitrogen, oxide, organic matter provides a waste residue mill soaks the integrated processing system that detoxifies and degasses, soak the conversion through the mill, probably produce the toxic harmful gas of secondary pollution to the environment to the reaction and collect or high temperature incineration disposal, make it carry out innoxious emission, realize cleaner production, thereby realized the innoxious of waste residue, the minimizing, the resourceful treatment, compare with other processing technologies, the treatment cost has been practiced thrift greatly.
(2) The utility model discloses to the grinding conversion machine that the characteristic improvement of the waste residue processing of harmful composition such as fluorine, chlorine, sulphur, phosphorus, ammonia nitrogen, oxide, organic matter is dealt with, not only equipment structure is simple unique, convenient operation, cost are low, the shell sets up bilayer structure, can let in the hot medium and heat or let in the refrigerant cooling to guarantee the required temperature of conversion, realize the function of heating or cooling; the plurality of feed inlets are arranged, so that the simultaneous feeding of a plurality of reaction substances can be realized, the operation process is reduced, and the reaction time is saved; and the gas collecting chamber is arranged, so that the collection of toxic and harmful gases can be ensured, and air pollution is prevented.
(3) The utility model provides a mill of waste residue soaks integrated processing system and processing method that detoxifies and degasses, can eliminate waste residue toxicity harm completely, the processing procedure of the invention is short, resources are saved, reduce the energy consumption, practice thrift manufacturing cost, accord with the requirement of development circular economy and sustainable development, the invention adopts unique technological equipment to the material characteristic, can organize the large-scale industrial production completely.
Drawings
FIG. 1 is a schematic view of a waste residue milling, soaking, detoxifying and degassing integrated treatment system;
FIG. 2 is a schematic structural view of a horizontal grinding-leaching conversion machine;
FIG. 3 is a schematic structural view of a vertical milling-leaching conversion machine;
FIG. 4 is a schematic view of a treating process in example 1;
FIG. 5 is a schematic view of the treatment process of example 2;
11. a discharging room; 12. a first feeder; 13. a first stirring tank; 14. a discharge pit; 15. a gate valve;
21. an auxiliary agent bin; 22. a second feeder; 23. a second stirring tank; 24. a gate valve;
31. a base; 32. a drive device; 33. a transmission device; 34. a barrel; 341. a mill housing; 342. A feed inlet; 343. a rotating shaft; 344. dispersing the leaves; 345. a gas collection chamber; 346. an exhaust port; 3461. A gas sampling port; 347. a discharge port; 3471. a slurry sampling port; 35. a bearing;
41. a third stirring tank; 42. a filtration device; 43. a sedimentation tank; 44. a conveyor belt;
51. washing the absorption tower; 52. a liquid storage tank; 53. a fourth stirring tank; 54. an insoluble gas treatment device; 55. A suction machine; 56. a delivery pump.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, the utility model provides a waste residue grinds to soak and detoxifies and degasification integrated processing system, including waste residue pretreatment systems, auxiliary agent allotment system, the mill that connects gradually soak conversion system, ground paste solid-liquid separation system and gas collecting system, the waste residue grinds to soak and detoxify and degasification integrated processing system adopts sealing device to set up the suction machine and be used for forming little negative pressure, prevent that the dust from wandering.
The waste residue pretreatment system comprises a discharging room 11, a first feeding machine 12 and a first stirring pool 13 which are sequentially arranged, wherein an automobile discharging pit 14 and an automobile cleaning and sterilizing device are arranged in the discharging room 11, the discharging room 11 is of a closed-chamber concrete wall structure and is provided with an automatic rotary gate and a suction opening, the discharging pit 14 is in a funnel bin pit form, a bottom discharging port is connected with the first feeding machine 12 through a gate valve 15, the waste residue is conveyed into the first stirring pool 13 after being metered through the first feeding machine 12, and then water is added into the first stirring pool 13 for stirring uniformly.
The auxiliary agent blending system comprises an auxiliary agent bin 21, a second feeder 22 and a second stirring tank 23 which are sequentially arranged, wherein the auxiliary agent is conveyed to the auxiliary agent bin 21 for storage through a special vehicle, a discharge port at the bottom of the auxiliary agent bin 21 is connected with the second feeder 22 through a gate valve 24, the auxiliary agent is metered by the second feeder 22 and then conveyed into the second stirring tank 23, if the auxiliary agent is solid, the auxiliary agent is added with a solution for dissolution and then is uniformly stirred, and if the auxiliary agent is liquid, the auxiliary agent is added with water for dilution to a proper concentration.
As shown in fig. 2-3, the milling and immersing conversion system includes a milling and immersing converter, the milling and immersing converter includes a base 31, a driving device 32, a transmission device 33 and a cylinder 34, which are connected in sequence, the cylinder 34 is disposed on the base 31, and plays a supporting role by the base, wherein the cylinder 34 includes a mill housing 341, a feed inlet 342, a rotating shaft 343, a dispersing blade 344, a gas collecting chamber 345, a gas outlet 346 and a discharge outlet 347, specifically, the mill housing 341 adopts a double-layer structure, and may be added with a heat insulating layer, or may be heated by introducing a heat medium or cooled by introducing a refrigerant, so as to ensure a temperature required for conversion, and realize a heating or cooling function. The feed inlet 342 is arranged on one side of the grinder shell 341, the discharge outlet 347 is arranged on the other side of the grinder shell 341, the number of the feed inlets 342 is three, simultaneous feeding of three raw material slurries can be realized, the slurry sampling port 3471 is arranged at the discharge outlet 347, and the reaction process and the reaction degree are detected by sampling a product. The gas collecting chamber 345 is arranged at the upper part of the milling and leaching converter barrel 34, the upper part of the gas collecting chamber 345 is also provided with a gas outlet 346, the gas outlet 346 is provided with a gas sampling port 3461, and the reaction process and the degree are detected by sampling gas generated by the reaction.
One end of the rotating shaft 343 is connected with the transmission device 33 through a bearing 35, the other end extends into the barrel 34 of the milling-soaking conversion machine, and a plurality of dispersing blades 344 are distributed on the rotating shaft 343 at equal intervals. Specifically, the driving device 32 is a motor, wherein the motor is connected to the transmission device 33 through a belt, the transmission device 33 is driven by the motor, and the transmission device 33 drives the rotating shaft 343 to move, so that the dispersing blades 344 rotate at a high speed, and sufficient kinetic energy is given to the grinding medium, so that the grinding medium generates a shearing force after colliding with the raw material to be ground in the barrel 34, thereby achieving the effect of dispersing.
The grinding and leaching conversion machine is a vertical grinding and leaching conversion machine or a horizontal grinding and leaching conversion machine, wherein a driving device 32 and a transmission device 33 of the vertical grinding and leaching conversion machine are arranged at the top of a cylinder 34 and are sequentially connected, a rotating shaft 343 is vertically arranged, one end of the rotating shaft 343 is connected with the transmission device 33 through a bearing 35, the other end of the rotating shaft passes through a gas collecting chamber 345 in the vertical direction and extends into the cylinder 34 of the grinding and leaching conversion machine, and dispersing blades 344 are vertically arranged on the rotating shaft 343 at equal intervals; the horizontal grinding and leaching converter driving device 32, the transmission device 33 and the barrel 34 are arranged in the same horizontal direction and are sequentially connected, the rotating shaft 343 is horizontally arranged, one end of the rotating shaft 343 is connected with the transmission device 33 through a bearing 35, the other end of the rotating shaft extends into the barrel 34 of the grinding and leaching converter, and the dispersing blades 344 are vertically arranged on the rotating shaft 343 at equal intervals.
Wherein the gas collecting chamber 345, the exhaust port 346 and the discharge port 347 of the grinding and leaching conversion machine are provided with a pressure monitor, a temperature monitor and a pH value monitor, the pressure monitor, the flow monitor and the pH value monitor are respectively connected with an external computer control system, and the intelligent control of the grinding and leaching conversion machine is realized through the computer control.
The slurry solid-liquid separation system comprises a third stirring tank 41, a filtering device 42, a settling tank 43 and a residue shed, wherein the third stirring tank 41 is connected with the filtering device 42, a solid outlet of the filtering device 42 is connected with the residue shed through a conveyor belt 44, and a liquid outlet of the filtering device 42 is connected with the settling tank 43. And (3) the slurry overflowing from a discharge port 336 of the grinding and leaching conversion machine enters a third stirring tank 41, the slurry is uniformly stirred and then sent to a filtering device 42 for solid-liquid separation, the liquid obtained by separation enters a settling tank 43 for standing and precipitation, the supernatant after standing returns to the first stirring tank 13 or the second stirring tank 23, the supernatant after standing returns to the filtering device 42 for solid-liquid separation again, and the solid slag is harmless waste slag and is used as chemical raw materials or building raw materials.
Furthermore, the filtering device 42 is one or more of a plate-and-frame filter press, a belt filter press, a screw filter press and a centrifugal separator, the number of the third stirring tanks can be set to be multiple, and gap operation is adopted to accelerate the volatilization and removal of the gas.
The gas collection system comprises a washing absorption tower 51, a liquid storage tank 52, a fourth stirring tank 53 and an insoluble gas treatment device 54, wherein the fourth stirring tank 53 is connected with the washing absorption tower 51 through a gate valve, a gas outlet at the upper part of the washing absorption tower 51 is connected with the insoluble gas treatment device 54 through the gate valve, and a liquid outlet at the lower part of the washing absorption tower 51 is connected with the liquid storage tank 52 through the gate valve. The reaction product gas discharged from the exhaust port 335 of the milling and leaching conversion machine is sent to the washing and absorption tower 51 through the suction machine 55, the auxiliary agent stored in the fourth stirring tank 53 is sent to the washing and absorption tower 51 through the delivery pump 56, the gas is washed and absorbed by the auxiliary agent, the absorbed liquid is sent to the liquid storage tank 52 from the liquid outlet at the lower part of the washing and absorption tower 51 through the delivery pump 56 for storage, and can be used as a chemical raw material, and the insoluble gas overflows from the gas outlet at the upper part of the washing and absorption tower 51 and then is sent to the insoluble gas treatment device 54 for collection or high-temperature incineration treatment.
The utility model provides a waste residue grinds soaks links to each other through airtight pipeline between each system among the integrated processing system of detoxifying and degasification, is provided with metering device and variable frequency speed control pump in the airtight pipeline, realizes the measurement through metering device and carries, and wherein variable frequency speed control pump kind is slush pump or liquid pump, and acid-fast or alkali-fast material is chooseed for use according to the characteristic of reaction medium to the material of variable frequency speed control pump and pipeline.
Further, a pressure monitor, a flow monitor, a pH value monitor and a gas analyzer are arranged in the closed pipeline, wherein the pressure monitor, the flow monitor, the pH value monitor and the gas analyzer are respectively connected with a peripheral computer control system, all data are processed by a computer, a central control system is established to guide production, and online monitoring is realized.
The utility model discloses mainly handle to the waste residue that contains harmful ingredient such as fluorine, chlorine, sulphur, phosphorus, ammonia nitrogen, oxide, organic matter, combine the figure and concrete embodiment below, go on further detailed description to the processing procedure.
The first embodiment is as follows: integrated processing method for grinding, soaking, detoxifying and degassing of ammonium alum slag
The ammonium alum slag is smelting waste slag, including aluminum ammonium alum slag, iron ammonium alum slag and other types, and has the common characteristic of containing ammonium sulfate component. In the present example, an aluminumoxun slag is used as an example and is described with reference to FIG. 4.
S1, pretreating aluminum ammonium alum slag: conveying the aluminum ammonium alum slag into a discharge pit of a discharge room through a special vehicle, metering the aluminum ammonium alum slag by a first feeding machine, then feeding the aluminum ammonium alum slag into a first stirring pool, adding 1-3 times of water according to the mass ratio, and uniformly stirring to prepare aluminum ammonium alum slag slurry;
s2, blending auxiliaries: the first auxiliary agent is carbide slag, the carbide slag is conveyed into an auxiliary agent bin through a special vehicle, the carbide slag is metered by a second feeding machine and then is conveyed into a second stirring tank, and 1-3 times of water is added according to the mass ratio and is uniformly stirred to prepare carbide slag slurry;
s3, grinding and leaching conversion: the aluminum ammonium alum slag slurry and the carbide slag slurry are sent into a grinding and leaching converter by a slurry pump, heat is generated in the grinding process of the grinding and leaching converter, additional heating is not needed generally, if the temperature is reduced, hot steam is introduced into a double-layer structure of the shell for heating, and the temperature in the mill is kept at about 80 ℃;
s4, slurry solid-liquid separation: conveying the ground and leached converted slurry into a third stirring tank by using a slurry pump for stirring, wherein the stirring tank is externally insulated and can be heated by introducing hot steam, so that the working temperature in the tank is kept at about 80 ℃, conveying the slurry into a plate-and-frame press by using the slurry pump for solid-liquid separation after gas is completely volatilized, conveying solid slag into a residue shed for storage, conveying liquid into a settling tank for standing and precipitation, returning supernatant to the first stirring tank or the second stirring tank as water for dissolving raw materials after standing, and returning the precipitate to a filtering device for solid-liquid separation again after standing;
s5, gas collection treatment: and (4) washing and absorbing ammonia gas generated in the milling and leaching conversion machine and ammonia gas discharged from the third stirring tank by using second aid water, and conveying the obtained ammonia water solution into a liquid storage tank for storage.
The aluminum ammonium alum slag is processed by a grinding, soaking, detoxifying and degassing integrated processing system to obtain general solid waste mainly containing calcium sulfate, and the general solid waste can be used as a building material raw material instead of gypsum. And can also obtain a byproduct of the ammonia water solution with higher purity.
Example two: barium slag grinding, soaking, detoxifying and degassing integrated treatment method
The barium slag contains soluble barium sulfide, and the barium slag is treated by using the grinding, soaking, detoxifying and degassing integrated treatment system, so that the barium sulfide in the barium slag can be converted into H2S is removed, thereby eliminating the risk of environmental pollution. This embodiment will be described with reference to fig. 5, taking barium slag treatment as an example.
S1, barium residue pretreatment: conveying barium slag into a discharge pit of a discharge room through a special vehicle, metering the barium slag through a first feeding machine, then feeding the barium slag into a first stirring tank, adding 1-3 times of water according to the mass ratio, and uniformly stirring to prepare barium slag slurry;
s2, blending auxiliaries: the first auxiliary agent adopts 20% dilute sulfuric acid, the sulfuric acid solution is conveyed into an auxiliary agent bin through a special vehicle, metered by a second feeding machine and then sent into a second stirring tank to be diluted into 20% sulfuric acid solution, and the dilute sulfuric acid solution is prepared after uniform stirring;
s3, grinding and leaching conversion: the barium slag slurry is sent into a mill leaching conversion machine by a slurry pump, and then dilute sulfuric acid solution is sent into the mill leaching conversion machine by an acid-resistant pump for grinding and conversion reaction;
s4, slurry solid-liquid separation: conveying the ground and leached converted slurry into a third stirring tank by using a slurry pump to stir until gas is completely volatilized, conveying the slurry into a plate-and-frame press by using the slurry pump to perform solid-liquid separation, conveying solid slag into a residue shed to be stored, conveying liquid into a settling tank to perform standing and precipitation, returning supernatant after standing to the first stirring tank or the second stirring tank as water required by dissolving raw materials, and returning the precipitate to a filtering device to perform solid-liquid separation again after standing;
s5, gas collection treatment: passing the generated gas in the mill-leaching converter and the gas discharged from the third stirring tank through a second auxiliary agent Fe2+Solution absorption of H2S, obtaining FeS precipitate, separating the solution to obtain FeS solid slag, and returning the solution to the absorption tower for recycling. The insoluble gas being CO2The gas can be discharged directly.
The barium slag is subjected to grinding, soaking, detoxification and degassing integrated treatment system to obtain a process raw material mainly containing barium sulfate, and the process raw material is purified and then returned to a barium salt factory for use.
The utility model provides a pair of integrated processing system and processing method that detoxify and degas are soaked in mill of waste residue, to in the waste residue treatment that contains harmful components such as fluorine, chlorine, sulphur, phosphorus, ammonia nitrogen, oxide, organic matter, soak the conversion through the mill, carry out resource utilization or innocent treatment with the gas that produces, realize cleaner production to innoxious, minimizing, the resourceful treatment of waste residue has been realized, compared with other processing technology, has practiced thrift the treatment cost greatly.
The foregoing is a more detailed description of the invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments disclosed herein. For those skilled in the art to which the present invention pertains, a plurality of simple deductions or replacements can be made without departing from the concept of the present invention, and all of them should be considered as belonging to the protection scope of the present invention.
Claims (10)
1. A waste residue grinding, leaching, detoxifying and degassing integrated treatment system is characterized by comprising a waste residue pretreatment system, an auxiliary agent preparation system, a grinding, leaching and conversion system, a slurry solid-liquid separation system and a gas collection system which are sequentially connected, wherein the waste residue grinding, leaching, detoxifying and degassing integrated treatment system adopts a sealing device and is provided with a suction machine for forming micro negative pressure;
the waste residue pretreatment system comprises a discharging room, a first feeding machine and a first stirring pool which are arranged in sequence; the auxiliary agent blending system comprises an auxiliary agent bin, a second feeding machine and a second stirring tank which are sequentially arranged; the grinding and leaching conversion system comprises a grinding and leaching converter; the slurry solid-liquid separation system comprises a third stirring tank, a filtering device, a settling tank and a residue piling shed, wherein the filtering device is respectively connected with the third stirring tank, the settling tank and the residue piling shed; the gas collection system comprises a washing absorption tower, a liquid storage tank, a fourth stirring tank and an insoluble gas treatment device, wherein the washing absorption tower is respectively connected with the liquid storage tank, the fourth stirring tank and the insoluble gas treatment device;
grind and soak conversion machine and include base, drive arrangement, transmission and barrel are connected in order, the barrel is located the base, the barrel includes grinder shell, feed inlet, pivot, dispersion blade, gas collection room, gas vent and discharge gate, the feed inlet sets up in grinder shell one side, the discharge gate sets up in grinder shell opposite side, the one end of pivot with transmission links to each other, and the other end stretches into and grinds inside the conversion machine barrel, equidistant distribution has a plurality of dispersion blade in the pivot, the gas collection room sets up in the upper portion of grinder shell, the gas vent sets up in gas collection room upper portion.
2. The integrated waste residue mill leaching detoxification and degassing processing system as claimed in claim 1, wherein the mill housing is a double-layer structure.
3. The integrated processing system for grinding, soaking, detoxifying and degassing of waste residues as claimed in claim 1, wherein the number of the feed inlets is more than or equal to 2.
4. The integrated processing system for grinding, immersing, detoxifying and degassing of waste residue as claimed in claim 1, wherein the gas outlet is provided with a gas sampling port, and the discharge port is provided with a slurry sampling port.
5. The integrated waste residue grinding, leaching, detoxifying and degassing treatment system as claimed in claim 1, wherein the grinding, leaching and converting machine gas collection chamber, the exhaust port and the discharge port are provided with a pressure monitor, a temperature monitor and a pH value monitor, and the pressure monitor, the flow monitor and the pH value monitor are respectively connected with an external computer control system.
6. The integrated processing system for grinding, soaking, detoxifying and degassing of waste residues as claimed in claim 1, wherein the number of the third stirring tanks is more than or equal to 1.
7. The integrated waste residue grinding, leaching, detoxifying and degassing treatment system as claimed in claim 1, wherein the systems in the integrated waste residue grinding, leaching, detoxifying and degassing treatment system are connected through a closed pipeline, and a metering instrument and a variable frequency speed control pump are arranged in the closed pipeline.
8. The integrated waste residue grinding, soaking, detoxifying and degassing treatment system as claimed in claim 7, wherein a pressure monitor, a flow monitor, a pH value monitor and a gas analyzer are arranged in the closed pipeline, and the pressure monitor, the flow monitor, the pH value monitor and the gas analyzer are respectively connected with a peripheral computer control system.
9. The integrated processing system for grinding, soaking, detoxifying and degassing of waste residue as claimed in claim 1, wherein an automobile discharging pit and an automobile cleaning and sterilizing device are arranged in the discharging room, and the discharging room is of a closed chamber concrete wall structure and is provided with an automatic rotary gate and an air suction opening.
10. The integrated processing system for grinding, immersing, detoxifying and degassing of waste residue as claimed in claim 1, wherein the filtering equipment is one or more of a plate-and-frame filter press, a belt filter press, a screw filter press and a centrifugal separator.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110026415A (en) * | 2019-05-22 | 2019-07-19 | 长沙中硅水泥技术开发有限公司 | A kind of waste residue mill maceration poison and deaerate integrated processing system and its processing method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110026415A (en) * | 2019-05-22 | 2019-07-19 | 长沙中硅水泥技术开发有限公司 | A kind of waste residue mill maceration poison and deaerate integrated processing system and its processing method |
| CN110026415B (en) * | 2019-05-22 | 2023-09-19 | 长沙中硅环保科技有限公司 | Waste residue grinding, leaching, detoxifying and degassing integrated treatment system and treatment method thereof |
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Address after: 410075 D-244, No. 199 Lugu Road, Lugu Lu, high tech Zone, Changsha, Hunan Co-patentee after: Xiangtan University Patentee after: Changsha Zhongsi Environmental Protection Technology Co., Ltd Address before: 410075 D-244, No. 199 Lugu Road, Lugu Lu, high tech Zone, Changsha, Hunan Co-patentee before: Xiangtan University Patentee before: Changsha silicon cement technology development Co Ltd |