CN110787535A - Efficient odor removing method applied to machining liquid in hardware workshop - Google Patents
Efficient odor removing method applied to machining liquid in hardware workshop Download PDFInfo
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- CN110787535A CN110787535A CN201911102275.5A CN201911102275A CN110787535A CN 110787535 A CN110787535 A CN 110787535A CN 201911102275 A CN201911102275 A CN 201911102275A CN 110787535 A CN110787535 A CN 110787535A
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- processing liquid
- circulation
- oxide
- odor
- liquid
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
- B01D39/2068—Other inorganic materials, e.g. ceramics
- B01D39/2082—Other inorganic materials, e.g. ceramics the material being filamentary or fibrous
- B01D39/2086—Other inorganic materials, e.g. ceramics the material being filamentary or fibrous sintered or bonded by inorganic agents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M175/00—Working-up used lubricants to recover useful products ; Cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/708—Volatile organic compounds V.O.C.'s
Abstract
The invention discloses a method for efficiently removing the odor of a processing liquid applied to a hardware workshop, which adopts a high-activity inorganic fiber prepared from a metal oxide and a transition metal oxide with a brand-new formula, utilizes the high-activity inorganic fiber to weave or sinter to prepare a filtering material, a filter screen and a filtering device, is arranged in metal processing liquid recycling treatment equipment, carries out deodorization and sterilization in the recycling link of the metal processing liquid, decomposes bacterial mildew, simultaneously utilizes the characteristic that manganese dioxide contained in the transition metal oxide has amphoteric oxide, and reduces deteriorated base oil into lipid substances with a lubricating function by using the inherent catalytic oxidation and catalytic reducibility of the manganese dioxide, thereby preventing the metal processing liquid from deterioration and corruption and prolonging the service life of the metal processing liquid; meanwhile, the high-activity inorganic fiber can be used for manufacturing a filter screen and installed in fresh air system equipment, so that putrefactive acid odor generated by metal working fluid splashed on walls and the ground is decomposed and purified, the purification effect can be further improved, and the working environment of a workshop is improved.
Description
Technical Field
The invention relates to the technical field of environmental protection, in particular to a method for efficiently removing odor of a processing liquid applied to a hardware workshop.
Background
China is a large country in manufacturing industry, hardware processing is an indispensable key process in the manufacturing industry, and metal processing must use metal processing liquid; metalworking fluids generally consist of a base oil (e.g., mineral oil, vegetable oil, etc.) and an extreme pressure agent or water-based lubricant; whether the processing fluid is water-based or oil-based, the processing fluid is full of metal processing workshops due to the deterioration of oil quality and the growth and reproduction of microorganisms in the cutting fluid, so that the acid rot odor caused by dead microorganism corpse decay is caused.
Due to the environmental protection pressure, most enterprises have workshop air purification equipment, but the prior art can only realize simple pumping and discharging but can not decompose odor, and the pumped and discharged odor diffuses into the nearby air, so that the living environment of surrounding residents is seriously polluted by the odor;
the prior art generally improves the formula of the metal processing cutting fluid, and adds a sterilization and bacteriostasis formula in the formula, such as adding boric acid, triethanolamine and other chemical substances, but the addition of the chemical substances can only solve the problem of inhibiting the growth of microorganisms, but can not fundamentally solve the problem of oxidative deterioration of base oil, thereby treating the symptoms and root causes, the addition of the chemical substances also brings pressure to the environment-friendly treatment of the processing fluid waste liquid, and the too complex formula components also influence the service life of the processing fluid;
in the catalyst technology, decomposition capacity disappears after photocatalyst activity is lost and decomposed, and due to the reasons of low decomposition efficiency and long time consumption, although the mechanism is feasible, organic gas which can be decomposed in a laboratory has the defects of poor decomposition and high operation cost in large engineering application, and the photocatalyst is processed and cannot be effectively regenerated after the photocatalyst activity is lost, so that the photocatalyst is discarded, secondary environmental pollution is formed, and the pressure of garbage treatment is increased.
Although the activated carbon-supported manganese dioxide technology can remove odor with high efficiency, the activated carbon regeneration process is complicated due to high price, large occupied area and failure of activated carbon pore channel blockage, so that the activated carbon is not regenerated and is in a solid garbage form or discarded to form secondary pollution.
In view of the defects of the prior art, the invention provides a method for efficiently removing the odor of the processing liquid applied to the hardware workshop.
Disclosure of Invention
The invention aims to provide a method for efficiently removing the odor of a processing liquid applied to a hardware workshop, so as to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme: the high-activity inorganic fiber is prepared by adopting a metal oxide with a brand-new formula and a transition metal oxide, is used for weaving or sintering to prepare a filtering material, a filter screen and a filtering device, is arranged in metal processing liquid recycling treatment equipment, is used for deodorizing and sterilizing in the recycling link of the metal processing liquid, decomposes bacterial mold, simultaneously reduces deteriorated base oil into lipid substances with a lubricating function by utilizing the characteristic of amphoteric oxide of manganese dioxide contained in the transition metal oxide and applying the inherent catalytic oxidation and catalytic reducibility of the manganese dioxide, prevents the metal processing liquid from deteriorating and decaying, and can prolong the service life of the metal processing liquid; meanwhile, the high-activity inorganic fiber can be used for manufacturing a filter screen and installed in fresh air system equipment, so that putrefactive acid odor generated by metal working fluid splashed on walls and the ground is decomposed and purified, the purification effect can be further improved, and the working environment of a workshop is improved.
According to the technical scheme, the method further comprises the following steps: preparing a high-activity inorganic fiber filter bag; step two, taking a bag filter; thirdly, connecting and erecting a circulation loop; step four, leading-in circulation of the processing liquid; and step five, post-processing.
In the first step, high-activity inorganic modified fibers with proper monofilament diameter, preferably 5-15 mu m, are taken and woven into filter bags with the filtering precision of 1 mu m, the diameter of 133mm, the length of 1000mm and the thickness of 10mm by professional workers;
in the second step, a bag filter is taken, the filter bag prepared in the first step is installed in the bag filter, and the bag filter is covered and installed;
in the third step, a deodorizing circulation loop is erected in a workshop for deodorizing the processing liquid according to the requirement, the deodorizing circulation loop comprises a bag filter, a cutting liquid container, a first circulation pipeline, a second circulation pipeline, a circulating water pump and a VOC detector, and the cutting liquid container is arranged on one side of the bag filter; a first circulation pipeline is connected to the outer wall of the top end of one side of the cutting fluid container in a penetrating manner, one end of the first circulation pipeline is connected with the liquid outlet end of the bag filter in a penetrating manner, a liquid inlet pipe of the bag filter is connected with a second circulation pipeline in a penetrating manner, one end of the second circulation pipeline is connected with the outer wall of the bottom end of one side of the cutting fluid container in a penetrating manner, circulation water pumps are installed on the outer walls of the middle portions of the first circulation pipeline and the second circulation pipeline in a penetrating manner, and a VOC detector is installed on the outer wall of the middle portion of one side of the second;
after the deodorization circulation loop is completed, pouring the rotten metal processing fluid needing deodorization treatment into a cutting fluid container, filling the cutting fluid into a second circulation pipeline at the bottom end, detecting the initial VOC value of the cutting fluid through a VOC detector, recording, starting a circulation water pump again, circulating the rotten metal processing fluid in the circulation loop, detecting the VOC value in the container through the VOC detector after the rotten metal processing fluid is continuously circulated again, and stopping circulation until no VOC component is detected;
and in the fifth step, pouring out the metal working fluid after the deodorization circulation is completed, filling and storing for post treatment.
According to the technical scheme, the filtering precision of the filter bag in the first step is not limited to 1 μm.
According to the technical scheme, the filter bag needs to be replaced periodically or cleaned periodically in the later use process of the bag filter in the second step.
According to the technical scheme, the corrupt metal processing fluid in the fourth step comprises stamping oil, stretching fluid, cutting fluid, grinding fluid, polishing fluid, cleaning fluid or degreasing fluid.
According to the technical scheme, the frequency detected by the VOC detector in the fourth step is detected once after the cutting fluid continuously circulates for one hour.
According to the technical scheme, the metal oxide comprises one or a mixture of several of silicon dioxide, aluminum oxide, calcium oxide and magnesium oxide.
According to the technical scheme, the transition metal oxide comprises one or a mixture of more of manganese dioxide, vanadium pentoxide, titanium dioxide, iron oxide, copper oxide, nickel oxide and zinc oxide.
Compared with the prior art, the invention has the following beneficial effects: according to the method for efficiently removing the odor of the metal working fluid in the workshop, a filter screen or a filter bag prepared from high-activity inorganic fibers is combined with an industrial field fresh air system, an air conditioning system is combined with environment-friendly treatment in a metal working fluid recycling link, the processing fluid is subjected to fundamental deodorization and sterilization treatment while the efficient air quality purification effect of the industrial field is guaranteed, the generation source of the odor in the processing fluid is inhibited, the path of the odor of the processing fluid diffused in the industrial field is cut off, and the service life of the processing fluid is prolonged.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic front view of a deodorizing circulation circuit according to the present invention;
FIG. 2 is a flow chart of the method of the present invention;
in the figure: 1. a bag filter; 2. a cutting fluid container; 3. a first circulation line; 4. a second circulation line; 5. a water circulating pump; 6. VOC detector.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
Referring to fig. 1-2, the present invention provides a technical solution: a method for efficiently removing the odor of machining liquid applied to a hardware workshop comprises the following steps of firstly, preparing a high-activity inorganic fiber filter bag; step two, taking a bag filter; thirdly, connecting and erecting a circulation loop; step four, leading-in circulation of the processing liquid; step five, post-processing;
in the first step, high-activity inorganic modified fibers with proper monofilament diameter, preferably 5-15 mu m, are taken and woven into filter bags with the filtering precision of 1 mu m, the diameter of 133mm, the length of 1000mm and the thickness of 10mm by professional workers;
in the second step, a bag filter is taken, the filter bag prepared in the first step is installed in the bag filter, and the bag filter is covered and installed; in the second step, the filter bag needs to be replaced or cleaned regularly in the later use process of the bag filter;
in the third step, a deodorizing circulation loop is erected in a workshop for deodorizing the processing liquid as required, the deodorizing circulation loop comprises a bag filter 1, a cutting liquid container 2, a first circulation pipeline 3, a second circulation pipeline 4, a circulating water pump 5 and a VOC detector 6, and the cutting liquid container 2 is arranged on one side of the bag filter 1; a first circulating pipeline 3 is connected to the outer wall of the top end of one side of the cutting fluid container 2 in a penetrating manner, one end of the first circulating pipeline 3 is connected with the liquid outlet end of the bag filter 1 in a penetrating manner, a liquid inlet pipe of the bag filter 1 is connected with a second circulating pipeline 4 in a penetrating manner, one end of the second circulating pipeline 4 is connected with the outer wall of the bottom end of one side of the cutting fluid container 2 in a penetrating manner, a circulating water pump 5 is installed on the outer walls of the middles of the first circulating pipeline 3 and the second circulating pipeline 4 in a penetrating manner, and a VOC detector 6 is installed on the outer wall of the middle of one side;
after the deodorization circulation loop is completed, pouring the rotten metal processing fluid needing deodorization treatment into a cutting fluid container 2, filling the cutting fluid into a second circulation pipeline 4 at the bottom end, detecting the initial VOC value of the cutting fluid through a VOC detector 6, recording, starting a circulation water pump 5 again, circulating the rotten metal processing fluid in the circulation loop, detecting the VOC value in the container through the VOC detector 6 after the circulation is continued, and stopping the circulation until no VOC component is detected; the corrupt metal processing liquid in the fourth step comprises punching oil, stretching liquid, cutting liquid, grinding liquid, polishing liquid, cleaning liquid or degreasing liquid; in the fourth step, the frequency detected by the VOC detector 6 is detected once when the cutting fluid continuously circulates for one hour;
and in the fifth step, pouring out the metal working fluid after the deodorization circulation is completed, filling and storing for post treatment.
It is noted that, herein, relational terms such as first and second, 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.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A method for efficiently removing the odor of a processing liquid applied to a hardware workshop is characterized in that a metal oxide with a brand-new formula and a high-activity inorganic fiber made of a transition metal oxide are adopted, the high-activity inorganic fiber is woven or sintered to form a filtering material, a filtering screen and a filtering device, the filtering material, the filtering screen and the filtering device are installed in metal processing liquid recycling treatment equipment, deodorization and sterilization are carried out in the recycling link of the metal processing liquid, bacterial mildew is decomposed, meanwhile, manganese dioxide contained in the transition metal oxide has the characteristic of amphoteric oxide, and the inherent catalytic oxidizability and catalytic reducibility of the manganese dioxide are used for reducing deteriorated base oil into lipid substances with a lubricating function, so that the metal processing liquid is prevented from deterioration and corruption, and the service life of the metal processing liquid can be prolonged; meanwhile, the high-activity inorganic fiber can be used for manufacturing a filter screen and installed in fresh air system equipment, so that putrefactive acid odor generated by metal working fluid splashed on walls and the ground is decomposed and purified, the purification effect can be further improved, and the working environment of a workshop is improved.
2. The method for efficiently removing the odor of the processing liquid applied to the hardware workshop according to claim 1, further comprising the following steps of: preparing a high-activity inorganic fiber filter bag; step two, taking a bag filter; thirdly, connecting and erecting a circulation loop; step four, leading-in circulation of the processing liquid; step five, post-processing; the method is characterized in that:
in the first step, high-activity inorganic modified fibers with proper monofilament diameter, preferably 5-15 mu m, are taken and woven into filter bags with the filtering precision of 1 mu m, the diameter of 133mm, the length of 1000mm and the thickness of 10mm by professional workers;
in the second step, a bag filter is taken, the filter bag prepared in the first step is installed in the bag filter, and the bag filter is covered and installed;
in the third step, a deodorizing circulation loop is erected in a workshop for deodorizing the processing liquid according to needs, the deodorizing circulation loop comprises a bag filter (1), a cutting liquid container (2), a first circulation pipeline (3), a second circulation pipeline (4), a circulating water pump (5) and a VOC detector (6), and the cutting liquid container (2) is arranged on one side of the bag filter (1); a first circulating pipeline (3) is connected to the outer wall of the top end of one side of the cutting fluid container (2) in a penetrating manner, one end of the first circulating pipeline (3) is connected with the liquid outlet end of the bag filter (1) in a penetrating manner, a liquid inlet pipe of the bag filter (1) is connected with a second circulating pipeline (4) in a penetrating manner, one end of the second circulating pipeline (4) is connected with the outer wall of the bottom end of one side of the cutting fluid container (2) in a penetrating manner, circulating water pumps (5) are installed on the outer walls of the middles of the first circulating pipeline (3) and the second circulating pipeline (4) in a penetrating manner, and a VOC detector (6) is installed on the outer wall of the middle of one side of the second;
after the deodorization circulation loop is completed, pouring the rotten metal processing fluid needing deodorization treatment into a cutting fluid container (2), filling the cutting fluid into a second circulation pipeline (4) at the bottom end, detecting the initial VOC value of the cutting fluid through a VOC detector (6), recording, starting a circulation water pump (5) again, circulating the rotten metal processing fluid in the circulation loop, detecting the VOC value in the container through the VOC detector (6) after continuous circulation is performed, and stopping circulation until no VOC component is detected;
and in the fifth step, pouring out the metal working fluid after the deodorization circulation is completed, filling and storing for post treatment.
3. The method for efficiently removing the odor of the processing liquid applied to the hardware workshop according to claim 2, is characterized by comprising the following steps of: the filter bag filtering precision in the first step is not limited to 1 μm.
4. The method for efficiently removing the odor of the processing liquid applied to the hardware workshop according to claim 2, is characterized by comprising the following steps of: in the second step, the filter bag needs to be replaced periodically or cleaned periodically in the later use process of the bag filter.
5. The method for efficiently removing the odor of the processing liquid applied to the hardware workshop according to claim 2, is characterized by comprising the following steps of: the corrupt metal processing liquid in the fourth step comprises punching oil, stretching liquid, cutting liquid, grinding liquid, polishing liquid, cleaning liquid or degreasing liquid.
6. The method for efficiently removing the odor of the processing liquid applied to the hardware workshop according to claim 2, is characterized by comprising the following steps of: and in the fourth step, the frequency detected by the VOC detector (6) is detected once after the cutting fluid continuously circulates for one hour.
7. The method for efficiently removing the odor of the processing liquid applied to the hardware workshop according to claim 1, is characterized by comprising the following steps of: the metal oxide comprises one or a mixture of several of silicon dioxide, aluminum oxide, calcium oxide and magnesium oxide.
8. The method for efficiently removing the odor of the processing liquid applied to the hardware workshop according to claim 1, wherein the transition metal oxide comprises one or a mixture of manganese dioxide, vanadium pentoxide, titanium dioxide, iron oxide, copper oxide, nickel oxide and zinc oxide.
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| CN201911102275.5A CN110787535A (en) | 2019-11-12 | 2019-11-12 | Efficient odor removing method applied to machining liquid in hardware workshop |
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| CN201911102275.5A CN110787535A (en) | 2019-11-12 | 2019-11-12 | Efficient odor removing method applied to machining liquid in hardware workshop |
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