CN112609149A - Steam blackening furnace with waste oil recovery device - Google Patents
Steam blackening furnace with waste oil recovery device Download PDFInfo
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- CN112609149A CN112609149A CN202011426355.9A CN202011426355A CN112609149A CN 112609149 A CN112609149 A CN 112609149A CN 202011426355 A CN202011426355 A CN 202011426355A CN 112609149 A CN112609149 A CN 112609149A
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
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- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention discloses a steam blackening furnace with a waste oil recovery device. The device comprises a feeding section, a preheating section, a transition section, a blackening section, a cooling section and a discharging section which are connected in sequence; a waste oil recovery device is arranged on the transition section; the waste oil recovery device comprises an oil receiving cover, a waste oil pipeline and an oil receiving tank which are connected in sequence; the oil receiving cover is arranged below the transition section. According to the waste oil recovery device, a large amount of liquid waste oil generated by deoiling the workpiece treated by the preheating section is collected and reused, so that the purposes of reducing oil smoke and recovering the waste oil are achieved, the production cost is saved, and the environment is protected.
Description
Technical Field
The invention relates to the field of part processing and forming, in particular to a steam blackening furnace with a waste oil recovery device.
Background
In order to improve the corrosion resistance of the workpiece, it is required to perform a blackening treatment. Generally, a steam blackening treatment process is adopted, namely, the steam reacts with a workpiece under certain temperature and pressure conditions, so that a compact oxide film is generated on the surface of the workpiece, the oxide film has good antirust capacity, the surface hardness of the workpiece can be improved, and the wear resistance of the workpiece is improved. The mesh belt type continuous steam blackening furnace is furnace body equipment used in a steam blackening treatment process. Before the blackening treatment by using water vapor, the workpiece to be treated needs to be treated with oil (generally, the workpiece is immersed in oil for treatment to prevent rusting), and waste oil is generated in the process of preheating later. China is a large country for producing and using mesh belt type continuous steam blackening furnaces, so a large amount of waste oil is generated. Waste oil in the blackening product is gasified in the market at present, and a large amount of oil smoke is generated although the waste oil is treated.
In recent years, energy conservation and emission reduction are vigorously advocated by the nation. The problem of waste oil generated by the steam blackening furnace is solved, the response to national energy-saving and emission-reducing policies is realized, and the pollution of oil smoke to the environment can be reduced.
Disclosure of Invention
In order to solve the waste oil problem of the steam blackening furnace, the invention discloses a steam blackening furnace with a waste oil recovery device, which comprises a feeding section, a preheating section, a transition section, a blackening section, a cooling section and a discharging section which are sequentially connected; a waste oil recovery device is arranged on the transition section; the waste oil recovery device comprises an oil receiving cover, a waste oil pipeline and an oil receiving tank which are connected in sequence; the oil receiving cover is arranged below the transition section.
Further, the waste oil pipeline comprises a trough pipeline, and the trough pipeline is a U-shaped pipe, a V-shaped pipe or a W-shaped pipe.
Furthermore, a first valve is arranged on the waste oil pipeline between the oil receiving cover and the trough pipeline.
Furthermore, the first valve is a gravity sensing valve and is set to be in a closed state when power is off; when the weight is sensed to be larger than n when the power is on, the first valve is opened and keeps an opening state until the power is off; n is the weight of the waste oil when the waste oil divides the waste oil pipeline into two spaces at the trough pipeline.
Further, the oil receiving cover is in a funnel shape with a large upper part and a small lower part.
Further, the size of the top opening of the oil receiving cover is 3/4 to be equal to the size of the bottom of the transition section. The large area is beneficial to the liquid oil on the transition section to drip into the oil receiving cover as much as possible.
Further, a second valve is arranged below or at the bottom of the side wall of the oil receiving tank.
Further, the second valve is a gravity sensing valve, and is configured to open and maintain an open state when the sensed weight is greater than m until the second valve is closed after no oil flows out of the second valve; m is the weight of the waste oil in the oil receiving tank, and m is more than 0 kg. In one embodiment, m is the weight of the waste oil when the oil receiving tank is filled with the waste oil. In another embodiment, m is the weight of waste oil when the oil reservoir 3/4 is filled with waste oil.
The invention has the advantages that: the invention adds a waste oil recovery device on the transition section of the steam blackening furnace. A large amount of liquid waste oil that workpiece deoiling after preheating section treatment produced through this waste oil recovery unit is collected and is recycled, has reached the reduction oil smoke, retrieves the purpose of waste oil, practices thrift manufacturing cost, environmental protection. The arrangement of the trough pipeline prevents oil smoke from entering the oil receiving tank and ensures that liquid oil enters the oil receiving tank. The arrangement of the first valve is beneficial to storing a certain amount of liquid oil in the oil receiving cover, and then the first valve is opened to ensure that a certain amount of liquid oil is always kept in the trough pipeline, so that the waste oil pipeline is divided into two spaces, and oil smoke is prevented from entering the oil receiving tank. The second valve is arranged to facilitate the discharge of waste oil when the oil receiving tank is full or is about to be full.
The present invention will be further described with reference to the accompanying drawings to fully illustrate the objects, technical features and technical effects of the present invention.
Drawings
FIG. 1 is a partial schematic view showing the structure of a steam black furnace according to an embodiment of the present invention having a waste oil recovery apparatus.
Detailed Description
The technical solution of the present invention is further described by the following specific examples. The following examples are further illustrative of the present invention and are not intended to limit the scope of the present invention.
Example 1
FIG. 1 shows the general structure of a waste oil reclamation apparatus portion of an embodiment of the present invention, in which a steam blackening furnace having a waste oil reclamation apparatus includes a feed section, a preheating section, a transition section, a blackening section, a cooling section, and a discharge section, which are connected in this order; a waste oil recovery device is arranged on the transition section; the waste oil recovery device comprises an oil receiving cover 1, a waste oil pipeline 2 and an oil receiving tank 3 which are connected in sequence; the oil receiving cover 1 is arranged below the transition section 5.
The waste oil pipeline 2 comprises a wave trough pipeline which is a U-shaped pipe. A first valve 4 is arranged on the waste oil pipeline 2 between the oil receiving cover 1 and the trough pipeline. The first valve 4 is a gravity sensing valve and is set to be in a closed state when power is off; when the weight is sensed to be larger than n when the power is on, the first valve 4 is opened and keeps an opening state until the power is off; n is the weight of the waste oil when the waste oil divides the waste oil pipe 2 into two spaces at the valley pipe.
The oil receiving cover 1 is in a funnel shape with a large upper part and a small lower part. The size of the top opening of the oil receiving cover 1 is 5/6 which is the size of the bottom of the transition section 5. And a second valve is arranged below the side wall of the oil receiving tank 3. The second valve is a gravity sensing valve and is set to be opened and kept in an opening state when the weight is sensed to be more than m until the second valve is closed after no oil flows out of the second valve; m is the weight of the waste oil when the oil receiving tank 3 is filled with the waste oil.
Example 2
In this embodiment, the trough ducts are V-tubes. The rest is the same as in example 1.
Example 3
In this embodiment, the trough duct is a W-shaped duct. The rest is the same as in example 1.
Example 4
In this embodiment, the size of the top opening of the oil receiving cover 1 is 3/4, which is the size of the bottom of the transition section 5. The rest is the same as in example 1.
Example 5
In this embodiment, the size of the top opening of the oil receiving cover 1 is equal to the size of the bottom of the transition section 5. The rest is the same as in example 1.
Example 6
In this embodiment, the second valve is disposed at the bottom of the oil receiving tank 3. The rest is the same as in example 1.
Example 7
In this example, m is the weight of waste oil when 3/4 of the oil tank 3 is filled with waste oil. The rest is the same as in example 1.
Example 8
In this embodiment, the first valve 4 is a manually controlled valve. The rest is the same as in example 1.
Example 9
In this embodiment, the second valve is a manually controlled valve. The rest is the same as in example 1.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.
Claims (8)
1. A steam blackening furnace with a waste oil recovery device is characterized by comprising a feeding section, a preheating section, a transition section, a blackening section, a cooling section and a discharging section which are sequentially connected; a waste oil recovery device is arranged on the transition section; the waste oil recovery device comprises an oil receiving cover, a waste oil pipeline and an oil receiving tank which are sequentially connected; the oil receiving cover is arranged below the transition section.
2. The steam blackening furnace with waste oil recovery device of claim 1, wherein the waste oil conduit comprises a trough conduit, and the trough conduit is a U-shaped pipe, a V-shaped pipe or a W-shaped pipe.
3. The vapor black-out furnace with oil reclamation apparatus of claim 2, wherein a first valve is disposed on said oil waste conduit between said oil receiving hood and said valley conduit.
4. The vapor black-out furnace with waste oil reclamation device of claim 3, wherein the first valve is a gravity sensing valve configured to be closed when de-energized; when the weight is sensed to be larger than n when the power is on, the first valve is opened and keeps an opening state until the power is off; and n is the weight of the waste oil when the waste oil divides the waste oil pipeline into two spaces at the trough pipeline.
5. The steam blackening furnace with waste oil recovery device of claim 1, wherein the oil receiving hood has a funnel shape with a large top and a small bottom.
6. The vapor black-out furnace with waste oil recovery device of claim 1, wherein the top opening of said oil receiving hood is 3/4 to be equal to the bottom opening of said transition section.
7. The vapor blackening furnace having an oil reclamation apparatus of claim 1, wherein a second valve is provided under or at a bottom of a side wall of the oil receiving tank.
8. The steam blackening furnace having an oil reclamation apparatus of claim 7, wherein the second valve is a gravity sensing valve, and is configured such that when a weight greater than m is sensed, the second valve is opened and remains open until the second valve is closed after no oil flows out of the second valve; and m is the weight of the waste oil in the oil receiving tank, and m is more than 0 kg.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011426355.9A CN112609149A (en) | 2020-12-09 | 2020-12-09 | Steam blackening furnace with waste oil recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011426355.9A CN112609149A (en) | 2020-12-09 | 2020-12-09 | Steam blackening furnace with waste oil recovery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112609149A true CN112609149A (en) | 2021-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011426355.9A Pending CN112609149A (en) | 2020-12-09 | 2020-12-09 | Steam blackening furnace with waste oil recovery device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112609149A (en) |
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2020
- 2020-12-09 CN CN202011426355.9A patent/CN112609149A/en active Pending
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