阅读说明：本技术 废乳化油回收过程运动粘度自动控制装置及其方法 (Automatic control device and method for kinematic viscosity in waste emulsified oil recovery process ) 是由 洪华 欧志荣 于 2019-09-25 设计创作，主要内容包括：本发明涉及一种废乳化油回收过程运动粘度自动控制装置及其方法,包括有：储油箱,所述储油箱底部设有蒸汽加热箱,蒸汽加热箱中设有蒸汽盘管,蒸汽盘管外接蒸汽管道,蒸汽管道中设有关断阀和蒸汽疏水阀,关断阀两端的管道并联有流量调节阀；所述储油箱顶部设有油水检测器,储油箱内设有第一远传温度计,储油箱外壁连通有输油管,输油管中设有油压泵、检测流量计和第二远传温度计,输油管的输出端设有油枪和燃烧器。本发明通过温控加热使废乳化油的蒸发量达到预设值,实现乳化油满足回收工艺中供给流动需求,使废乳化液作为燃料回收利用。(The invention relates to a kinematic viscosity automatic control device and method in the recovery process of waste emulsified oil, comprising: the steam heating box is internally provided with a steam coil pipe, the steam coil pipe is externally connected with a steam pipeline, a shut-off valve and a steam drain valve are arranged in the steam pipeline, and pipelines at two ends of the shut-off valve are connected with a flow regulating valve in parallel; the oil storage tank top is equipped with oil water detector, is equipped with first teletransmission thermometer in the oil storage tank, and the oil storage tank outer wall intercommunication has defeated oil pipe, is equipped with oil hydraulic pump, detection flowmeter and second teletransmission thermometer in the defeated oil pipe, and defeated oil pipe's output is equipped with oil gun and combustor. According to the invention, the evaporation capacity of the waste emulsified oil reaches a preset value through temperature control heating, so that the emulsified oil meets the supply flow requirement in the recovery process, and the waste emulsion is recycled as fuel.)

1. The utility model provides a useless emulsified oil recovery process kinematic viscosity automatic control device which characterized in that, including: oil storage tank (1), oil storage tank (1) bottom is equipped with steam heating case (2), be equipped with steam heating pipeline (3) in steam heating case (2), steam heating pipeline (3) and steam conduit (4) intercommunication, be equipped with shut-off valve (5) in steam conduit (4), oil storage tank (1) top is equipped with oil water detector (6), be equipped with first teletransmission thermometer (7) in oil storage tank (1), first teletransmission thermometer (7) pass through signal control shut-off valve (5), oil storage tank (1) outer wall intercommunication has defeated oil pipe (8), be equipped with hydraulic pump (9) in defeated oil pipe (8), detect flowmeter (10), the output of defeated oil pipe (8) is equipped with oil gun (11) and combustor (12).

2. The automatic kinematic viscosity control device for the recycling process of waste emulsified oil as claimed in claim 1, wherein the steam heating pipeline (3) is a steam coil pipe, and the steam coil pipe is not in contact with the bottom surface of the oil storage tank (1).

3. The automatic kinematic viscosity control device for the recycling process of waste emulsified oil as claimed in claim 2, wherein the pipelines at both ends of the shut-off valve (5) are connected in parallel with a flow regulating valve (13); and a second remote thermometer (14) is also arranged in the oil delivery pipe (8), and the second remote thermometer (14) controls the flow regulating valve (13) through signals.

4. The automatic kinematic viscosity control device for the recycling process of waste emulsified oil as claimed in claim 3, wherein the input end of the steam pipeline (4) is provided with a steam trap (15).

5. The automatic control method for the kinematic viscosity in the recovery process of the waste emulsified oil is characterized by comprising the following steps of:

s1, adding the waste emulsified oil into the oil storage tank (1), starting an emulsion heating system, opening a shut-off valve (5), and introducing steam;

s2, a first remote thermometer (7) is arranged in the oil storage tank (1), and if the detected temperature is higher than 70 ℃, the shutoff valve (5) is closed and the flow regulating valve (13) is started; otherwise, the shut-off valve (5) is opened to continue heating.

S3, adjusting a flow control valve (13) to enable the temperature in an oil storage tank (1) to be higher than 80 ℃, pumping waste emulsified oil by an oil hydraulic pump (9) through a communicated oil delivery pipe (8), detecting the evaporation amount of the waste emulsified oil by a detection flowmeter (10) in the oil delivery pipe (8), detecting the liquid storage height in the oil storage tank (1) by an oil-water detector (6), detecting the temperature of the emulsified oil by a second remote thermometer (14), and controlling the flow control valve (13) to accurately regulate and control the steam flow;

s4, when the evaporation capacity of the waste emulsified oil detected by the flow meter (10) is larger than a preset value and the liquid storage height in the oil storage tank (1) detected by the oil-water detector (6) is higher than the preset value, the oil gun (11) and the burner (12) at the output end of the oil delivery pipe (8) are started.

6. The method of claim 5, wherein in the step S4, the preset value of the evaporation capacity of the waste emulsified oil is 0.5 t/h; the preset value of the height of the liquid storage in the oil storage tank (1) is 1 m.

Technical Field

The invention relates to the technical field of oily wastewater treatment, in particular to a device and a method for automatically controlling kinematic viscosity in a waste emulsified oil recovery process.

Background

The oily wastewater is a common environmental pollutant, the emulsion is one of the common environmental pollutants, the oil and the water form stable emulsion due to the surfactant contained in the emulsion, the particle size of oil drops is generally less than 10 mu M, and most of the oil drops are 0.1-2 mu M.

In the process of rolling steel, the emulsion plays roles in lubricating and cooling the surface of the strip steel and a roller. Taking Zhanjiang cold rolling as an example, different cold rolled products are produced according to different requirements of users, so emulsion with different qualities is used in the production process. The emulsion is recycled and discharged periodically. Due to the fact that the market demand for cold-rolled sheets is increasing day by day and the variety is also increasing day by day, cold-rolling emulsion is replaced more and more frequently. The quality of the emulsion is different, and the properties of the emulsion waste water are also different. Therefore, a technique is needed to make the emulsified oil meet the flow requirement of the supply in the recovery process, and to realize the recycling of the waste emulsion as fuel.

Disclosure of Invention

The invention aims to form an automatic control process of the kinematic viscosity of dispersed phase emulsified oil generated by demulsification of waste emulsion, so that the emulsified oil meets the requirement of supply flow in a recovery process, and the waste emulsion can be recycled for fuel.

In order to achieve the purpose of the invention, the technical scheme adopted by the invention is as follows:

the utility model provides a useless emulsified oil recovery process kinematic viscosity automatic control device which characterized in that, including: the oil storage tank is used for storing the waste emulsion to generate dispersed phase emulsified oil, and the bottom of the oil storage tank is provided with a steam heating tank which is used for forcibly heating oil in the oil storage tank to a specified temperature value; the steam heating tank is internally provided with a steam heating pipeline which is communicated with the steam pipeline, the steam pipeline is internally provided with a shut-off valve, the top of the oil storage tank is provided with an oil-water detector which is used for detecting the actual oil flow and implementing the protection on the pressure feed pump to start and stop, the oil storage tank is internally provided with a first remote thermometer, the first remote thermometer is controlled by a signal to shut off the valve, the outer wall of the oil storage tank is communicated with an oil delivery pipe, the oil delivery pipe is internally provided with an oil pressure pump and a detection flowmeter, and the output end of the oil delivery pipe is provided with an.

Further, steam heating pipe adopts steam coil pipe, the more abundant heating of being convenient for, and steam coil pipe not with the bottom surface contact of batch oil tank, effectively increases the steam circulation contact surface, ensures that the interior even heating of emulsified oil tank does not have the dead angle.

Furthermore, the pipelines at two ends of the shutoff valve are connected with a flow regulating valve in parallel; and a second remote thermometer is also arranged in the oil delivery pipe and sends a signal to control the flow regulating valve.

Furthermore, the input end of the steam pipeline is provided with a steam trap for draining away condensed water and ensuring the heating effect.

The automatic control method for the kinematic viscosity in the recovery process of the waste emulsified oil is characterized by comprising the following steps of:

s1, adding the waste emulsified oil into an oil storage tank, starting an emulsion heating system, opening a shutoff valve, and introducing steam;

s2, arranging a first telemetering thermometer in the oil storage tank, closing the shutoff valve and starting the flow regulating valve if the temperature is detected to be higher than 70 ℃; otherwise, heating is continued.

S3, adjusting a flow control valve to enable the temperature in an oil storage tank to be higher than 80 ℃, pumping waste emulsified oil by an oil hydraulic pump through a communicated oil conveying pipe, detecting the evaporation amount of the waste emulsified oil by a detection flowmeter in the oil conveying pipe, detecting the liquid storage height in the oil storage tank by an oil-water detector, detecting the temperature of the emulsified oil by a second remote thermometer, and controlling the flow control valve to accurately regulate and control the steam flow;

s4, when the evaporation capacity of the waste emulsified oil detected by the flow meter is larger than a preset value and the liquid storage height in the oil storage tank is higher than the preset value, the oil gun and the burner at the output end of the oil delivery pipe are started.

Further, in the step S4, the preset value of the evaporation capacity of the waste emulsified oil is 0.5 t/h; the preset value of the height of the liquid in the oil storage tank is 1m, and the preset value is used for protecting pumping.

Drawings

FIG. 1 is a schematic view of an automatic kinematic viscosity control apparatus for a waste emulsified oil recovery process according to an embodiment of the present invention;

FIG. 2 is a flow chart of a method for automatically controlling kinematic viscosity in a process of recovering waste emulsified oil according to an embodiment of the present invention;

in the figure, 1-oil reservoir; 2-steam heating the box; 3-steam heating the pipeline; 4-a steam pipeline; 5-closing the valve; 6-oil water detector; 7-a first telemetric thermometer; 8-an oil delivery pipe; 9-oil hydraulic pump; 10-detecting the flow meter; 11-an oil gun; 12-a burner; 13-a flow regulating valve; 14-a second remote thermometer; 15-steam trap.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

In the description of the present invention, it should be noted that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Referring to fig. 1, an embodiment of the present application provides an automatic control device for kinematic viscosity in a waste emulsified oil recovery process, including: the device comprises an oil storage tank 1 for storing waste emulsion to be demulsified to generate dispersed phase emulsified oil, wherein a steam heating tank 2 is arranged at the bottom of the oil storage tank 1 and is used for forcibly heating oil in the oil storage tank 1 to a specified temperature value; the steam heating box 2 is internally provided with a steam heating pipeline 3, the steam heating pipeline 3 is communicated with a steam pipeline 4, the steam pipeline 4 is internally provided with a shut-off valve 5, and pipelines at two ends of the shut-off valve 5 are also connected with a flow regulating valve 13 in parallel.

Preferably, steam heating pipe 3 adopts steam coil pipe, is convenient for more fully heat, and steam coil pipe not with the bottom surface contact of batch oil tank 1, effectively increases the steam circulation contact surface, ensures that the interior even heating of emulsified oil tank does not have the dead angle. The input end of the steam pipeline 4 is provided with a steam trap 15 for separating condensed water and ensuring the heating effect.

The top of the oil storage tank 1 is provided with an oil-water detector 6 for detecting actual oil flow and implementing protection start and stop of the pressure feed pump, a first remote thermometer 7 is arranged in the oil storage tank 1, the first remote thermometer 7 controls the shut-off valve 5 through a signal, the outer wall of the oil storage tank 1 is communicated with an oil delivery pipe 8, an oil pressure pump 9 and a detection flowmeter 10 are arranged in the oil delivery pipe 8, and an oil gun 11 and a combustor 12 are arranged at the output end of the oil delivery pipe 8.

Preferably, the oil delivery pipe 8 is further provided with a second remote thermometer 14, and the second remote thermometer 14 sends a signal to control the flow regulating valve 13, so as to provide accurate temperature control to a preset value.