Raw oil pretreatment device for carbon black production

Abstract

The utility model discloses a raw oil pretreatment device for carbon black production, which relates to the technical field of carbon black production and is characterized in that an outlet of a raw oil tank is communicated with a settling tank through a pipeline, an upper overflow port of the settling tank is communicated with a rough filtration tank through a pipeline, and an outlet of the rough filtration tank is communicated with a centrifugal tank through a pipeline; an outlet of the centrifugal tank is communicated with a raw oil intermediate tank through a pipeline; an outlet of the tail gas tank is communicated with a combustor through a pipeline, an outlet of the combustor is communicated with a dryer through a pipeline, an outlet of the dryer is communicated to a jacket inlet of the raw oil intermediate tank through a pipeline, and a jacket outlet of the raw oil intermediate tank is communicated to an upper inlet of the raw oil tank through a pipeline. The purity of the raw oil is improved, and the storage of the raw oil is safer.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of carbon black production, specifically relates to a raw oil pretreatment device for carbon black production. BACKGROUND

[0002] In the carbon black production process, the quality of raw oil directly affects the performance and quality of carbon black products. The raw oil often contains impurities such as rust, sand and the like, which can cause many adverse effects on the production process and products of carbon black, such as blocking the pipelines and nozzles of production equipment, affecting the stability of the reaction process, reducing the quality of carbon black products, and the like. In addition, the raw oil needs to be preheated in the carbon black production process, and currently steam heating or electric heating is mostly used, which wastes resources. SUMMARY

[0003] The technical problem to be solved by the utility model is that, in view of the deficiencies in the prior art, a raw oil pretreatment device for carbon black production is provided, which has higher purity of raw oil, improves the quality, and reduces the preheating cost.

[0004] To solve the above technical problems, the technical scheme of the utility model is as follows:

[0005] A raw oil pretreatment device for carbon black production, comprising a raw oil tank and a tail gas tank, the outlet of the raw oil tank is connected to a settling tank through a pipeline, the upper overflow port of the settling tank is connected to a coarse filter tank through a pipeline, the outlet of the coarse filter tank is connected to a centrifugal tank through a pipeline, and the outlet of the centrifugal tank is connected to a raw oil intermediate tank.

[0006] The outlet of the tail gas tank is connected to a burner through a pipeline, the outlet of the burner is connected to a dryer through a pipeline, the outlet of the dryer is connected to the jacket inlet of the raw oil intermediate tank through a pipeline, and the jacket outlet of the raw oil intermediate tank is connected to the upper inlet of the raw oil tank through a pipeline.

[0007] As an improved technical scheme, a flotation tank is arranged between the raw oil tank and the settling tank.

[0008] As an improved technical scheme, the outlet of the dryer is connected to the bottom air inlet coil of the flotation tank through a pipeline.

[0009] As an improved technical scheme, the top gas phase outlets of the raw oil tank and the flotation tank are respectively connected to an activated carbon adsorber through a pipeline.

[0010] As an improved technical scheme, the outlet of the coarse filter tank is connected to an adsorption tank through a pipeline, the outlet of the adsorption tank is connected to a fine filter tank through a pipeline, and the outlet of the fine filter tank is connected to the centrifugal tank through a pipeline.

[0011] As an improved technical solution, the outlet of the adsorption tank is communicated to the upper inlet of the adsorption tank and the coarse filter tank respectively through pipelines.

[0012] As a preferred technical solution, the raw oil intermediate tank is provided with a circulating pump outside, and the circulating pump is communicated to the upper inlet and the lower outlet of the raw oil intermediate tank respectively.

[0013] Due to the adoption of the above technical solution, the present application has the following beneficial effects:

[0014] The utility model discloses a raw oil pretreatment device for carbon black production, including raw oil tank and tail gas tank, the outlet of raw oil tank is connected with the settling tank through the pipeline, the upper overflow of settling tank is connected with the coarse filter tank through the pipeline, the outlet of coarse filter tank is connected with centrifugal tank through the pipeline, the outlet of centrifugal tank is connected with raw oil intermediate tank through the pipeline, the outlet of tail gas tank is connected with the burner through the pipeline, the outlet of burner is connected with the dryer through the pipeline, the outlet of dryer is connected with the jacket inlet of raw oil intermediate tank through the pipeline, the jacket outlet of raw oil intermediate tank is connected with the upper inlet of raw oil tank through the pipeline. Raw oil enters the settling tank first, rust, sand and other impurities gather and deposit at the bottom, then the raw oil after settling enters the coarse filter tank through the overflow, after filtering out the impurities of large particles, enters the centrifugal tank, and the separation effect of impurities is improved through centrifugal acceleration, and the raw oil after purification is stored in the raw oil intermediate tank, and the tail gas produced in the carbon black production is changed into the mixed gas mainly composed of carbon dioxide, nitrogen and water vapor after being treated by the burner, and the hot mixed gas of carbon dioxide and nitrogen is obtained after the dryer, preheats the raw oil in the jacket of raw oil intermediate tank first, then the gas after heat exchange enters the raw oil tank, nitrogen and carbon dioxide are stable and inert, fill in the raw oil tank, can expel air, create an oxygen-free environment, effectively prevent the oxidation process, maintain the chemical stability of raw oil, prolong the storage time, and nitrogen and carbon dioxide reduce the oxygen content in the raw oil tank, so that the oil gas cannot enter the explosive limit range, and the safety of the storage process of raw oil is ensured.

[0015] The utility model discloses the raw oil tank and the settling tank between being equipped with the floatation tank. Through the floatation tank, part insoluble light impurities are removed, and the purity of raw oil is further improved.

[0016] The outlet of the dryer is communicated to the bottom air inlet coil of the floatation tank through a pipeline. The mixed gas of carbon dioxide and nitrogen enters from the bottom of the floatation tank, and after contacting the insoluble light impurities in the oil product, the insoluble light impurities can be brought to the oil surface, and the removal of the insoluble light impurities is accelerated.

[0017] The top gas phase outlet of the raw oil tank and the floatation tank is communicated to an activated carbon adsorber through a pipeline respectively.

[0018] The outlet of the coarse filter tank is communicated to an adsorption tank through a pipeline, the outlet of the adsorption tank is communicated to a fine filter tank through a pipeline, and the outlet of the fine filter tank is communicated to the centrifugal tank through a pipeline.

[0019] The outlet of the adsorption tank is communicated to the adsorption tank and the upper inlet of the coarse filter tank respectively.

[0020] The outside of the raw oil intermediate tank is provided with a circulating pump which is communicated to the upper inlet and the lower outlet of the raw oil intermediate tank respectively. BRIEF DESCRIPTION OF DRAWINGS

[0021] The utility model will be further explained in connection with the drawings and examples.

[0022] Figure 1 It is the structure schematic diagram of the utility model embodiment;

[0023] Wherein: 1, raw oil tank;2, tail gas tank;3, sedimentation tank;4, coarse filter tank;5, centrifugal tank;6, raw oil intermediate tank;7, combustor;8, dryer;9, floatation tank;10, activated carbon adsorber;11, adsorption tank;12, fine filter tank;13, circulating pump. DETAILED DESCRIPTION

[0024] The utility model will be further explained in connection with the drawings and examples.

[0025] As Figure 1As shown, a raw oil pretreatment device for carbon black production includes a raw oil tank 1 and a tail gas tank 2, the outlet of the raw oil tank 1 is communicated with a settling tank 3 through a pipeline, the upper overflow port of the settling tank 3 is communicated with a coarse filter tank 4 through a pipeline, the outlet of the coarse filter tank 4 is communicated with a centrifugal tank 5 through a pipeline, and the outlet of the centrifugal tank 5 is communicated with a raw oil intermediate tank 6 through a pipeline; the outlet of the tail gas tank 2 is communicated with a burner 7 through a pipeline, the outlet of the burner 7 is communicated with a dryer 8 through a pipeline, the outlet of the dryer 8 is communicated with the jacket inlet of the raw oil intermediate tank 6 through a pipeline, and the jacket outlet of the raw oil intermediate tank 6 is communicated with the upper inlet of the raw oil tank 1 through a pipeline. The raw oil first enters the settling tank 3, and rust, sand and other impurities are accumulated and precipitated at the bottom. The settled raw oil enters the coarse filter tank 4 through the overflow port, and after filtering out large-particle impurities, enters the centrifugal tank 5. The separation of impurities is accelerated by centrifugal acceleration, improving the separation effect of impurities. The purified raw oil is stored in the raw oil intermediate tank 6. The tail gas generated in the carbon black production is treated by the burner 7 and becomes a mixed gas mainly composed of carbon dioxide, nitrogen and water vapor. After passing through the dryer 8, a hot mixed gas of carbon dioxide and nitrogen is obtained. The mixed gas first enters the jacket of the raw oil intermediate tank 6 to preheat the raw oil inside, and then enters the raw oil tank 1 after heat exchange. Nitrogen and carbon dioxide are stable and inert, and are filled in the raw oil tank 1 to expel air and create an oxygen-free environment, effectively preventing oxidation and maintaining the chemical stability of the raw oil, thereby prolonging the storage time of the raw oil. At the same time, nitrogen and carbon dioxide reduce the oxygen content in the raw oil tank 1, so that the oil gas cannot enter the explosive limit range, ensuring the safety of the raw oil storage process.

[0026] A flotation tank 9 is arranged between the raw oil tank 1 and the settling tank 3. The flotation tank 9 removes part of the insoluble light impurities, further improving the purity of the raw oil.

[0027] The outlet of the dryer 8 is communicated with the bottom gas inlet coil of the flotation tank 9 through a pipeline. The mixed gas of carbon dioxide and nitrogen enters from the bottom of the flotation tank 9, contacts the insoluble light impurities in the oil, and carries them to the surface of the raw oil, accelerating the removal of insoluble light impurities.

[0028] The gas phase outlets at the top of the raw oil tank 1 and the flotation tank 9 are respectively communicated with an activated carbon adsorber 10 through pipelines. The overflowed mixed gas of carbon dioxide and nitrogen carrying oil gas is adsorbed and collected to avoid environmental pollution caused by entering the air.

[0029] The outlet of the coarse filter tank 4 is communicated with the adsorption tank 11 through a pipeline, the outlet of the adsorption tank 11 is communicated with the fine filter tank 12 through a pipeline, and the outlet of the fine filter tank 12 is communicated to the centrifugal tank 5 through a pipeline. The residual small rust, silt particles and other impurities in the raw oil are removed by the activated clay or silica gel adsorbent in the adsorption tank 11, further improving the purity of the raw oil and improving the quality of the subsequent carbon black product.

[0030] The outlet of the adsorption tank 11 is respectively communicated to the adsorption tank 11 and the upper inlet of the coarse filter tank 4 through a pipeline. When the impurities in the raw oil in the adsorption tank 11 are more, it can be returned to the coarse filter tank 4 for re-filtering, improving the purity of the raw oil.

[0031] The outside of the raw oil intermediate tank 6 is provided with a circulating pump 13, and the circulating pump 13 respectively communicates the upper inlet and the lower outlet of the raw oil intermediate tank 6. The mixing of the materials in the raw oil intermediate tank 6 is accelerated by the circulating pump 13, and the preheating effect is better.

[0032] It should be understood that these embodiments are only used to illustrate the present application and not to limit the scope of the present application. Furthermore, it should be understood that after reading the content taught by the present application, those skilled in the art can make various changes or modifications to the present application, and these equivalent forms also fall within the scope defined by the appended claims of the present application.

Claims

1. A raw material oil pretreatment device for carbon black production, comprising a raw material oil tank and a tail gas tank, characterized in that: The outlet of the raw oil tank is communicated with a settling tank through a pipeline, an upper overflow port of the settling tank is communicated with a rough filter tank through a pipeline, the outlet of the rough filter tank is communicated with a centrifugal tank through a pipeline, and the outlet of the centrifugal tank is communicated with a raw oil intermediate tank through a pipeline; The outlet of the tail gas tank is communicated with a combustor through a pipeline, the outlet of the combustor is communicated with a dryer through a pipeline, the outlet of the dryer is communicated with the jacket inlet of the raw oil intermediate tank through a pipeline, and the jacket outlet of the raw oil intermediate tank is communicated with the upper inlet of the raw oil tank through a pipeline.

2. The feed oil pretreatment device for carbon black production according to claim 1, characterized in that: A flotation tank is arranged between the raw oil tank and the settling tank.

3. The feed oil pretreatment apparatus for carbon black production according to claim 2, characterized in that: The outlet of the dryer is communicated with a bottom air inlet coil of the flotation tank through a pipeline.

4. The feed oil pretreatment apparatus for carbon black production according to claim 3, characterized in that: The top gas phase outlets of the raw oil tank and the flotation tank are respectively communicated with an activated carbon adsorber through a pipeline.

5. The feed oil pretreatment apparatus for carbon black production according to claim 1, characterized in that: The outlet of the rough filter tank is communicated with an adsorption tank through a pipeline, the outlet of the adsorption tank is communicated with a fine filter tank through a pipeline, and the outlet of the fine filter tank is communicated with the centrifugal tank through a pipeline.

6. The feed oil pretreatment apparatus for carbon black production as claimed in claim 5, wherein: The outlet of the adsorption tank is respectively communicated with the adsorption tank and the upper inlet of the rough filter tank through a pipeline.

7. The feed oil pre-treatment apparatus for carbon black production as claimed in claim 1, wherein: A circulating pump is arranged outside the raw oil intermediate tank, and the circulating pump respectively communicates the upper inlet and the lower outlet of the raw oil intermediate tank.

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