Device for reducing oil contained in waste gas in vacuum boiling process

Abstract

The utility model discloses a device for reducing oil contained in waste gas in a vacuum boiling process, which comprises a vacuum boiling pot, the top of the vacuum boiling pot is fixedly connected with a grease low-point recoverer through an outlet elbow, and the top of the grease low-point recoverer is fixedly connected with a pipeline oil baffle plate. The right side of the pipeline oil baffle plate is fixedly connected with a suspension separator, the bottom of the suspension separator is fixedly connected with a grease low-point recoverer through a grease recovery pipeline, and the top of the suspension separator is connected with a vertical condenser through a thick pipeline. According to the utility model, the oil content of vacuum waste gas in the prior art can be reduced to below 1% from 5%-10% through reasonable matching of equipment, reasonable design of pipelines and addition of the pipeline oil separation plate; the grease residue condition on the inner wall of the vacuum system pipeline is obviously reduced; long-time operation of the vacuum pump is not affected; the treatment load of a sewage station is reduced; and the yield of a boiling production line is improved by 1.2%-2.7%.

Description

Technical Field

[0001] The utility model relates to the technical field of animal oil waste gas collection, in particular to a device for reducing the oil content of waste gas in a vacuum refining process. Background Art

[0002] Animal oil production enterprises use negative pressure vacuum refining technology in the production process. In normal production, due to high temperature and high vacuum conditions, the water in the raw fat material will enter the condenser and vacuum system of the exhaust system through the vacuum pipe, thereby removing the water from the raw fat; however, often in this process, with the stirring of the equipment and the low boiling point oil in the production process, the oil will form small oil droplets, which will enter the exhaust system along with the water vapor and even enter the vacuum pump; this will make it difficult to clean the exhaust pipeline, damage the vacuum pump, block the wastewater pipeline, and even increase production losses. Utility Model Content

[0003] The purpose of the utility model is to provide a device for reducing the oil content of waste gas in a vacuum refining process, so as to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a device for reducing the oil content of waste gas in a vacuum refining process, comprising a vacuum refining pot, the top of the vacuum refining pot is fixedly connected to a grease low-point recoverer through an outlet elbow, the top of the grease low-point recoverer is fixedly connected to a pipeline oil baffle plate, the right side of the pipeline oil baffle plate is fixedly connected to a suspension separator, the bottom of the suspension separator is fixedly connected to the grease low-point recoverer through a grease recovery pipeline, and the top of the suspension separator is connected to a vertical condenser through a thick pipeline.

[0005] The top of the vertical condenser is connected with a water ring vacuum pump through a thick pipeline.

[0006] The bottom end of the vertical condenser is fixedly connected to a wastewater extraction pump via a thin pipe.

[0007] A ceramic filter is fixedly installed between the input end of the water ring vacuum pump and the rough pipeline.

[0008] The output end of the wastewater extraction pump is fixedly connected with a pressure sensor.

[0009] The output end of the water ring vacuum pump is fixedly connected with a pre-filter.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] This utility model achieves a significant reduction in the oil content of the waste gas in the vacuum refining process through the carefully designed equipment matching and pipeline layout, as well as the innovative application of pipeline oil separators. Specifically, this technology can effectively reduce the oil content of vacuum waste gas from the high level of 5% to 10% in the original technology to less than 1%. This improvement greatly reduces the oil content in the waste gas, which is of great significance for environmental protection and production efficiency improvement.

[0012] At the same time, since the device effectively reduces the grease residue on the inner wall of the vacuum system pipeline, it not only reduces the complexity and cost of pipeline maintenance, but also further ensures the stable operation of the vacuum system. Especially for vacuum pumps that need to run continuously for a long time, the application of this device avoids performance degradation or failure shutdown caused by grease accumulation, thereby ensuring the continuity and stability of the production process.

[0013] In addition, the device also effectively reduces the treatment load of the sewage treatment plant. Since the grease content in the exhaust gas is greatly reduced, the amount of grease entering the sewage treatment plant is also reduced, which improves the treatment efficiency of the sewage treatment plant and reduces treatment costs and environmental risks.

[0014] Finally, the application of the device also significantly improved the yield of the refining production line. By reducing the loss of oil in the exhaust gas and optimizing the entire refining process, the device increased the yield of the refining production line by 1.2% to 2.7%. This improvement not only directly increased the output and output value of the product, but also further improved the overall economic benefits and market competitiveness of the enterprise. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a main schematic diagram of the utility model.

[0016] In the figure: 1. Water ring vacuum pump; 2. Vertical condenser; 3. Wastewater extraction pump; 4. Pipeline oil baffle; 5. Outlet elbow; 6. Suspension separator; 7. Grease recovery pipeline; 8. Grease low point recoverer; 9. Vacuum refining pot; 10. Pre-filter; 11. Pressure sensor; 12. Ceramic filter. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1 , the utility model provides a technical solution:

[0019] Embodiment 1:

[0020] A device for reducing the oil content of waste gas in a vacuum refining process comprises a vacuum refining pot 9, the top of the vacuum refining pot 9 is fixedly connected to a grease low-point recoverer 8 through an outlet elbow 5, the top of the grease low-point recoverer 8 is fixedly connected to a pipeline oil baffle 4, the right side of the pipeline oil baffle 4 is fixedly connected to a suspension separator 6, the bottom of the suspension separator 6 is fixedly connected to the grease low-point recoverer 8 through a grease recovery pipeline 7, and the top of the suspension separator 6 is connected to a vertical condenser 2 through a rough pipeline.

[0021] The top of the vertical condenser 2 is connected to a water ring vacuum pump 1 through a thick pipeline.

[0022] The bottom end of the vertical condenser 2 is fixedly connected to a wastewater extraction pump 3 via a thin pipe.

[0023] Configure a matching water ring vacuum pump 1 according to the production process requirements, the exhaust gas discharge end is connected to the production exhaust gas treatment system, and the suction end is connected to the production vacuum system;

[0024] Vertical water-cooled condenser, vacuum access mode, bottom inlet and top outlet, cooling water access, bottom inlet and top outlet; the bottom of the condenser can hold the condensate residue, which can be pumped to the wastewater treatment system;

[0025] The suspension separator 6 separates the oil particles from the suspension by using the centrifugal sedimentation principle;

[0026] The pipeline oil baffle blocks the grease rising along the wall and returns it to the grease low point collector 8;

[0027] The oil low point recovery device 8 forms a U-shaped bend between the refining equipment and the vacuum system to collect the recovered oil in the vacuum system, and then backfill or collect and process it separately according to production requirements;

[0028] Taking into account the high melting point of animal fats, vacuum pipes and related equipment are equipped with heating and insulation.

[0029] Embodiment 2:

[0030] A device for reducing the oil content of waste gas in a vacuum refining process comprises a vacuum refining pot 9, the top of the vacuum refining pot 9 is fixedly connected to a grease low-point recoverer 8 through an outlet elbow 5, the top of the grease low-point recoverer 8 is fixedly connected to a pipeline oil baffle 4, the right side of the pipeline oil baffle 4 is fixedly connected to a suspension separator 6, the bottom of the suspension separator 6 is fixedly connected to the grease low-point recoverer 8 through a grease recovery pipeline 7, and the top of the suspension separator 6 is connected to a vertical condenser 2 through a rough pipeline.

[0031] The top of the vertical condenser 2 is connected to the water ring vacuum pump 1 through a thick pipe, and the bottom of the vertical condenser 2 is fixedly connected to the wastewater extraction pump 3 through a thin pipe. A ceramic filter 12 is fixedly installed between the input end of the water ring vacuum pump 1 and the thick pipe. The ceramic filter 12 can block larger grease particles and solid impurities entering the vacuum pump with the exhaust gas, protect the vacuum pump from damage, and improve its operating stability and life. The output end of the wastewater extraction pump 3 is fixedly connected to a pressure sensor 11, and the pressure sensor 11 is connected to the automatic control system. When the pressure in the wastewater pipe increases abnormally (possibly caused by blockage), the automatic control system can start the standby pump or sound an alarm for timely processing to avoid production interruption. The output end of the water ring vacuum pump 1 is fixedly connected to a pre-filter 10, which can capture large particles of grease and impurities in the exhaust gas, reduce the burden on the exhaust gas treatment system, and extend its service life.

[0032] The utility model can reduce the oil content of vacuum exhaust gas from 5% to 10% in the original technology to less than 1% by reasonable matching of equipment, reasonable design of pipelines and addition of pipeline oil separators; the grease residue on the inner wall of the vacuum system pipeline is significantly reduced; the long-term operation of the vacuum pump is not affected; the treatment load of the sewage station is reduced; and the yield of the refining production line is increased by 1.2% to 2.7%.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for reducing the oil content of waste gas in a vacuum refining process, comprising a vacuum refining pot (9), characterized in that: The top of the vacuum refining pot (9) is fixedly connected to a grease low point recovery device (8) via an outlet elbow (5); the top of the grease low point recovery device (8) is fixedly connected to a pipeline oil baffle plate (4); the right side of the pipeline oil baffle plate (4) is fixedly connected to a suspension separator (6); the bottom of the suspension separator (6) is fixedly connected to the grease low point recovery device (8) via a grease recovery pipeline (7); and the top of the suspension separator (6) is connected to a vertical condenser (2) via a rough pipeline.

2. The device for reducing the oil content of waste gas in a vacuum refining process according to claim 1, characterized in that: The top of the vertical condenser (2) is connected to a water ring vacuum pump (1) via a thick pipeline.

3. The device for reducing the oil content of waste gas in a vacuum refining process according to claim 1, characterized in that: The bottom end of the vertical condenser (2) is fixedly connected to a wastewater extraction pump (3) via a thin pipe.

4. The device for reducing the oil content of waste gas in a vacuum refining process according to claim 2, characterized in that: A ceramic filter (12) is fixedly installed between the input end of the water ring vacuum pump (1) and the rough pipeline.

5. The device for reducing the oil content of waste gas in a vacuum refining process according to claim 3 is characterized in that: The output end of the wastewater extraction pump (3) is fixedly connected to a pressure sensor (11).

6. The device for reducing the oil content of waste gas in a vacuum refining process according to claim 2, characterized in that: The output end of the water ring vacuum pump (1) is fixedly connected to a pre-filter (10).

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