阅读说明：本技术 一种丙烯酸重组分废料的处理方法 (Treatment method of acrylic acid heavy component waste ) 是由 孙承良 刘雷 张滨 于 2021-07-16 设计创作，主要内容包括：本发明公开了一种丙烯酸重组分废料的处理方法,包括以下操作步骤：根据废料配单中的丙烯酸重组分废料的比例,加入消石灰辅料降低废料的黏度,提高废料在管道中的流动性,使其在SMP中形成浆状状态,进入回转窑后沿窑体缓慢燃烧；提高丙烯酸重组分在装置中的pH,使pH>4,减缓废料对于设备的腐蚀,延长设备的使用周期。本发明所述的一种丙烯酸重组分废料的处理方法,在使用SMP处理丙烯酸重组分废料时,加入消石灰辅料会改变废料的形态,降低废料粘性提高废料的pH,保护设备并易于焚烧,防止丙烯酸重组分废料在进入设备时和其他废料粘结成球状废料,造成设备的堵塞并腐蚀设备,带来更好的使用前景。(The invention discloses a method for treating acrylic acid heavy component waste, which comprises the following operation steps: according to the proportion of the heavy component acrylic acid waste in the waste preparation list, adding a slaked lime auxiliary material to reduce the viscosity of the waste, improving the fluidity of the waste in a pipeline, enabling the waste to form a slurry state in SMP, and slowly burning along a kiln body after entering a rotary kiln; the pH value of the acrylic acid heavy component in the device is increased to be more than 4, the corrosion of the waste material to equipment is slowed down, and the service life of the equipment is prolonged. According to the treatment method of the acrylic acid heavy component waste, when SMP is used for treating the acrylic acid heavy component waste, the form of the waste is changed by adding the slaked lime auxiliary material, the viscosity of the waste is reduced, the pH value of the waste is increased, the equipment is protected and is easy to burn, the acrylic acid heavy component waste is prevented from being bonded with other waste into spherical waste when entering the equipment, the equipment is prevented from being blocked and corroded, and a better use prospect is brought.)

1. A method for treating acrylic acid heavy component waste is characterized by comprising the following steps: the method comprises the following operation steps:

s1: crushing treatment: introducing acrylic acid heavy component waste into a crusher for crushing operation, wherein the acrylic acid heavy component waste is viscous and acidic waste;

s2: chemical pretreatment: chemically treating the acrylic acid heavy component waste after the crushing operation is finished, and adding a proper amount of slaked lime auxiliary material into the acrylic acid heavy component waste according to the proportion of the acrylic acid heavy component waste in the waste preparation list, wherein the slaked lime auxiliary material enters the acrylic acid heavy component waste;

s3: stirring treatment: the acrylic acid heavy component waste after crushing treatment is led into a mixer, and after a slaked lime auxiliary material is added into the acrylic acid heavy component waste, a stirring mechanism is started to stir and mix the acrylic acid heavy component waste and the slaked lime auxiliary material, so that the viscosity of the waste is reduced;

s4: waste material guiding: after the viscosity of the acrylic heavy component waste is reduced, the fluidity of the waste in a pipeline is improved, the waste is led into SMP, a mixer is arranged inside the SMP, and a slurry state is formed in the SMP;

s5: material guiding and burning: introducing the pasty acrylic acid heavy component waste in the SMP into a rotary kiln, and slowly combusting along the kiln body;

s6: raising the pH value: the pH value of the acrylic acid heavy component in the device is increased while the acrylic acid heavy component waste is slowly combusted in the kiln body, the corrosion of the waste to equipment is slowed down, and the service cycle of the equipment is prolonged;

s7: discharging: and removing internal harmful substances after finishing the combustion of the acrylic acid heavy component waste, discharging and discharging, and finishing the treatment operation of the acrylic acid heavy component waste.

2. The method for treating acrylic acid heavy component waste material according to claim 1, characterized in that: the ratio of the acrylic acid heavy component waste to the slaked lime auxiliary material in the step S2 is 41: 1.

3. The method for treating acrylic acid heavy component waste material according to claim 1, characterized in that: and in the step S3, adding the auxiliary material of the slaked lime, and then stirring for 10min by a stirring mechanism.

4. The method for treating acrylic acid heavy component waste material according to claim 1, characterized in that: in the step S4, the SMP is a system integrating crushing, mixing and pumping, and a mixer is arranged inside the SMP.

5. The method for treating acrylic acid heavy component waste material according to claim 1, characterized in that: and the combustion time of the acrylic acid heavy component waste in the step S5 in the rotary kiln is 25-35 min.

6. The method for treating acrylic acid heavy component waste material according to claim 1, characterized in that: the pH of the acrylic acid heavy component in the apparatus is maintained above 4 in the S6 step.

7. The method for treating acrylic acid heavy component waste material according to claim 1, characterized in that: when the combination of the heavy acrylic acid component waste materials is sludge, waste mineral oil, rice hulls, heavy acrylic acid components, medical waste materials and distillation residues, the slurry state of the waste materials in the SMP is good, and the operation pressure of the mixer is 55 bar.

8. The method for treating acrylic acid heavy component waste material according to claim 1, characterized in that: when the acrylic acid heavy component waste material is combined with sludge of a wastewater treatment station, SYZH181, medical waste, acrylic acid heavy components, VAE wastewater treatment sludge, waste mineral oil and waste sulfonic acid, the slurry state of the waste materials in the SMP is good, and the operating pressure of the mixer is 60 bar.

Technical Field

The invention relates to the field of hazardous waste treatment, in particular to a method for treating acrylic acid heavy component waste.

Background

The treatment method of the acrylic acid heavy component waste is a method for carrying out incineration treatment on the acrylic acid heavy component waste, the aim of treating dangerous waste is to reduce the viscosity of the acrylic acid heavy component waste, form a loose form and improve the pH value of the waste to protect storage equipment and incineration facilities, and along with the continuous development of science and technology, the manufacturing process requirements of people on the treatment method of the acrylic acid heavy component waste are higher and higher.

In the prior art, a patent with an authorization publication number of CN201110390776.5 discloses a method for processing heavy components of acrylic acid and esters, which comprises the following steps: distilling and cracking the heavy components of acrylic acid or esters to convert the heavy components into acrylic acid steam; condensing the acrylic acid steam and collecting; the collected acrylic acid is purified, the process flow is simple, the recovery rate is high, the purity is high, the long-term operation is stable, can bring high economic benefit and environmental benefit for society, is a method for recycling acrylic acid and ester heavy components worth popularizing in the market, and the existing treatment method of acrylic acid heavy component waste has certain disadvantages in use, firstly, because the acrylic acid heavy component waste material entering the solid waste pit can be adhered to other waste materials in the pit to form a large spheroid, when the grab bucket is used for feeding, a feeding pipeline can be blocked and adhered to the plate feeding machine, the plate feeding machine is not beneficial to use of people, in addition, the SMP treatment is adopted, the plate feeding machine can be bonded into a sticky shape, the blockage of equipment can be caused, the equipment can be corroded, certain adverse effect is brought to the use process of people, and therefore, the method for treating the acrylic acid heavy component waste material is provided.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a method for treating acrylic acid heavy component waste, when SMP is used for treating the acrylic acid heavy component waste, the form of the waste is changed by adding slaked lime auxiliary materials, the viscosity of the waste is reduced, the pH value of the waste is increased, equipment is protected and easy to burn, the acrylic acid heavy component waste is prevented from being bonded with other waste into spherical waste when entering the equipment, the equipment is prevented from being blocked and corroded, and the problems in the background art can be effectively solved.

(II) technical scheme

In order to achieve the purpose, the invention adopts the technical scheme that: a method for treating acrylic acid heavy component waste comprises the following operation steps:

s1: crushing treatment: introducing acrylic acid heavy component waste into a crusher for crushing operation, wherein the acrylic acid heavy component waste is viscous and acidic waste;

s2: chemical pretreatment: chemically treating the acrylic acid heavy component waste after the crushing operation is finished, and adding a proper amount of slaked lime auxiliary material into the acrylic acid heavy component waste according to the proportion of the acrylic acid heavy component waste in the waste preparation list, wherein the slaked lime auxiliary material enters the acrylic acid heavy component waste;

s3: stirring treatment: the acrylic acid heavy component waste after crushing treatment is led into a mixer, and after a slaked lime auxiliary material is added into the acrylic acid heavy component waste, a stirring mechanism is started to stir and mix the acrylic acid heavy component waste and the slaked lime auxiliary material, so that the viscosity of the waste is reduced;

s4: waste material guiding: after the viscosity of the acrylic heavy component waste is reduced, the fluidity of the waste in a pipeline is improved, the waste is led into SMP, a mixer is arranged inside the SMP, and a slurry state is formed in the SMP;

s5: material guiding and burning: introducing the pasty acrylic acid heavy component waste in the SMP into a rotary kiln, and slowly combusting along the kiln body;

s6: raising the pH value: the pH value of the acrylic acid heavy component in the device is increased while the acrylic acid heavy component waste is slowly combusted in the kiln body, the corrosion of the waste to equipment is slowed down, and the service cycle of the equipment is prolonged;

s7: discharging: and removing internal harmful substances after finishing the combustion of the acrylic acid heavy component waste, discharging and discharging, and finishing the treatment operation of the acrylic acid heavy component waste.

As a preferable technical scheme, the ratio of the acrylic acid heavy component waste to the slaked lime auxiliary material in the step S2 is 41: 1.

As a preferable technical scheme, after the slaked lime auxiliary material is added in the step S3, the stirring time of the stirring mechanism is 10 min.

As a preferred technical solution, the SMP in step S4 is a system integrating crushing, mixing and pumping, and is provided with a mixer inside.

As a preferable technical scheme, the combustion time of the acrylic acid heavy component waste in the rotary kiln in the S5 step is 25-35 min.

As a preferable mode, the pH of the acrylic acid heavy component in the apparatus is maintained at 4 or more in the step S6.

As a preferable technical scheme, when the acrylic acid heavy component waste material is combined with sludge, waste mineral oil, rice hulls, acrylic acid heavy component, medical waste and distillation residues, the slurry state of the waste material in the SMP is good, and the operation pressure of the mixer is 55 bar.

As a preferable technical scheme, when the acrylic heavy component waste is combined into the sludge of a wastewater treatment station, the SYZH181, the medical waste, the acrylic heavy component, the VAE wastewater treatment sludge, the waste mineral oil and the waste sulfonic acid, the slurry state of the waste in the SMP is good, and the operation pressure of the mixer is 60 bar.

(III) advantageous effects

Compared with the prior art, the invention provides a method for treating heavy acrylic acid component waste, which has the following beneficial effects: according to the method for treating the acrylic acid heavy component waste, when SMP is used for treating the acrylic acid heavy component waste, the form of the waste is changed by adding the lime hydrate auxiliary material, the viscosity of the waste is reduced, the pH value of the waste is improved, equipment is protected and easy to burn, the acrylic acid heavy component waste is prevented from being bonded with other waste into spherical waste when entering the equipment, so that the equipment is blocked and corroded, the pretreatment is carried out by a chemical method, the treatment capacity of the acrylic acid heavy component is improved, the treatment difficulty is reduced, the pH value of the waste is improved, the corrosion to the equipment is slowed down, the depreciation of the equipment is reduced, the lime hydrate auxiliary material is added according to the proportion of the acrylic acid heavy component waste in the waste preparation list to reduce the viscosity of the waste, the fluidity of the waste in a pipeline is improved, the waste is enabled to form a slurry state in an SMP, and the waste is slowly combusted along a kiln body after entering the SMP; the pH value of the acrylic acid heavy component in the device is improved to be greater than 4, the corrosion of the waste to equipment is slowed down, the service cycle of the equipment is prolonged, the whole treatment method of the acrylic acid heavy component waste is simple in structure and convenient to operate, and the using effect is better than that of the traditional mode.

Drawings

FIG. 1 is a schematic structural view of a first embodiment of a method for treating an acrylic acid heavy component waste according to the present invention.

FIG. 2 is a schematic structural view of a second embodiment of the method for treating an acrylic acid heavy component waste of the present invention.

Detailed Description

The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings and the detailed description, but those skilled in the art will understand that the following described embodiments are some, not all, of the embodiments of the present invention, and are only used for illustrating the present invention, and should not be construed as limiting the scope of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. The examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The first embodiment is as follows:

as shown in FIG. 1, a method for treating waste acrylic acid heavy components comprises the following steps:

s1: crushing treatment: introducing acrylic acid heavy component waste into a crusher for crushing operation, wherein the acrylic acid heavy component waste is viscous and acidic waste;

s2: chemical pretreatment: chemically treating the acrylic acid heavy component waste after the crushing operation is finished, and adding a proper amount of slaked lime auxiliary material into the acrylic acid heavy component waste according to the proportion of the acrylic acid heavy component waste in the waste preparation list, wherein the slaked lime auxiliary material enters the acrylic acid heavy component waste;

s3: stirring treatment: the acrylic acid heavy component waste after crushing treatment is led into a mixer, and after a slaked lime auxiliary material is added into the acrylic acid heavy component waste, a stirring mechanism is started to stir and mix the acrylic acid heavy component waste and the slaked lime auxiliary material, so that the viscosity of the waste is reduced;

s4: waste material guiding: after the viscosity of the acrylic heavy component waste is reduced, the fluidity of the waste in a pipeline is improved, the waste is led into SMP, a mixer is arranged inside the SMP, and a slurry state is formed in the SMP;

s5: material guiding and burning: introducing the pasty acrylic acid heavy component waste in the SMP into a rotary kiln, and slowly combusting along the kiln body;

s6: raising the pH value: the pH value of the acrylic acid heavy component in the device is increased while the acrylic acid heavy component waste is slowly combusted in the kiln body, the corrosion of the waste to equipment is slowed down, and the service cycle of the equipment is prolonged;

s7: discharging: and removing internal harmful substances after finishing the combustion of the acrylic acid heavy component waste, discharging and discharging, and finishing the treatment operation of the acrylic acid heavy component waste.

The ratio of the acrylic acid heavy component waste to the slaked lime auxiliary material in the step S2 was 41: 1.

And in the step S3, adding the auxiliary slaked lime into the mixture, and then stirring the mixture for 10min by using a stirring mechanism.

In the step S4, the SMP is a system integrating crushing, mixing and pumping, and a mixer is arranged in the system.

The burning time of the acrylic acid heavy component waste in the step S5 in the rotary kiln is 25-35 min.

The pH of the acrylic acid heavy component in the apparatus is maintained above 4 in the S6 step.

When the acrylic acid heavy component waste material is combined into sludge, waste mineral oil, rice hulls, acrylic acid heavy components, medical waste and distillation residues, the slurry state of the waste material in the SMP is good, and the operation pressure of a mixer is 55 bar.

Example two:

on the basis of the first embodiment, as shown in fig. 2, a method for treating acrylic acid heavy component waste comprises the following operation steps:

s1: crushing treatment: introducing acrylic acid heavy component waste into a crusher for crushing operation, wherein the acrylic acid heavy component waste is viscous and acidic waste;

s2: chemical pretreatment: chemically treating the acrylic acid heavy component waste after the crushing operation is finished, and adding a proper amount of slaked lime auxiliary material into the acrylic acid heavy component waste according to the proportion of the acrylic acid heavy component waste in the waste preparation list, wherein the slaked lime auxiliary material enters the acrylic acid heavy component waste;

s3: stirring treatment: the acrylic acid heavy component waste after crushing treatment is led into a mixer, and after a slaked lime auxiliary material is added into the acrylic acid heavy component waste, a stirring mechanism is started to stir and mix the acrylic acid heavy component waste and the slaked lime auxiliary material, so that the viscosity of the waste is reduced;

s4: waste material guiding: after the viscosity of the acrylic heavy component waste is reduced, the fluidity of the waste in a pipeline is improved, the waste is led into SMP, a mixer is arranged inside the SMP, and a slurry state is formed in the SMP;

s5: material guiding and burning: introducing the pasty acrylic acid heavy component waste in the SMP into a rotary kiln, and slowly combusting along the kiln body;

s6: raising the pH value: the pH value of the acrylic acid heavy component in the device is increased while the acrylic acid heavy component waste is slowly combusted in the kiln body, the corrosion of the waste to equipment is slowed down, and the service cycle of the equipment is prolonged;

s7: discharging: and removing internal harmful substances after finishing the combustion of the acrylic acid heavy component waste, discharging and discharging, and finishing the treatment operation of the acrylic acid heavy component waste.

The ratio of the acrylic acid heavy component waste to the slaked lime auxiliary material in the step S2 was 41: 1.

And in the step S3, adding the auxiliary slaked lime into the mixture, and then stirring the mixture for 10min by using a stirring mechanism.

In the step S4, the SMP is a system integrating crushing, mixing and pumping, and a mixer is arranged in the system.

The burning time of the acrylic acid heavy component waste in the step S5 in the rotary kiln is 25-35 min.

The pH of the acrylic acid heavy component in the apparatus is maintained above 4 in the S6 step.

When the waste materials of the heavy acrylic acid components are combined into sludge of a wastewater treatment station, SYZH181, medical waste, heavy acrylic acid components, VAE wastewater treatment sludge, waste mineral oil and waste sulfonic acid, the slurry state of the waste materials in the SMP is good, and the operation pressure of a mixer is 60 bar.

The working principle is as follows: the method comprises the steps of introducing acrylic acid heavy component waste into a crusher for crushing operation, wherein the acrylic acid heavy component waste is sticky and acidic waste, chemically treating the acrylic acid heavy component waste after the crushing operation is finished, adding a proper amount of slaked lime auxiliary material into the acrylic acid heavy component waste according to the proportion of the acrylic acid heavy component waste in a waste preparation list, introducing the acrylic acid heavy component waste after the crushing treatment into a mixer, adding the slaked lime auxiliary material into the acrylic acid heavy component waste, starting a stirring mechanism, stirring and mixing the acrylic acid heavy component waste and the slaked lime auxiliary material, reducing the viscosity of the waste, improving the fluidity of the waste in a pipeline after the viscosity of the acrylic acid heavy component waste is reduced, introducing the acrylic acid heavy component waste into the SMP, arranging the mixer inside the SMP, and forming a slurry state in the SMP, the method comprises the steps of guiding pulpy acrylic acid heavy component waste in the SMP into a rotary kiln, slowly burning along a kiln body, improving the pH value of acrylic acid heavy components in a device when the acrylic acid heavy component waste slowly burns in the kiln body, slowing down corrosion of the waste to equipment, prolonging the service cycle of the equipment, removing internal harmful substances after the acrylic acid heavy component waste burns, discharging and discharging, finishing the treatment operation of the acrylic acid heavy component waste, adding slaked lime according to the adding amount of the acrylic acid heavy component, reasonably controlling the pH value of mixed waste, and strictly paying attention to the change of temperature when adding the slaked lime for treatment.

It is noted that, herein, relational terms such as first and second (a, b, etc.) and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.