Tar residue separating device

Abstract

The utility model belongs to the technical field of chemical production equipment, and discloses a tar residue separating device which comprises a liquefying tank, and a feed port of the liquefying tank is respectively communicated with a feed port of a diluted tar storage tank and a feed port of a raw material tar centrifugal machine through pipelines. A discharge port of the liquefying tank is communicated with a feed port of the tar residue centrifugal machine through a pipeline and a conveying pump; a solid material outlet of the tar residue centrifugal machine is communicated with a feeding hole of the dry residue storage tank, and a liquid material outlet of the tar residue centrifugal machine is communicated with a feeding hole of the recovered tar storage tank through a pipeline. According to the utility model, efficient separation and resource utilization of the tar residues are realized, the tar content in the obtained dry residues is low, the treatment is simple, and the harm to the environment is small.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of chemical production equipment, and specifically relates to a tar residue separation device. BACKGROUND

[0002] In the deep processing of coal tar, measures need to be taken to remove tar residue in the coal tar, and the main components of the tar residue are: coal fines, coke fines and the like brought out in the coal tar extraction during the coal coking production process. For the tar residue, two measures are generally taken by the deep processing enterprises of coal tar at present: one is not to be treated, which will cause the tar residue to enter the product, resulting in the decline of product quality, the inability to produce high-end pitch products and carbon black oil products, and the lack of market competitiveness of enterprises; the other is to use a centrifuge to dehydrate and deslag the coal tar, and a viscous solid-tar residue will be separated from the coal tar during the treatment process, the tar residue is mainly composed of polycyclic aromatic hydrocarbon, benzene, phenol, naphthalene and coal powder, coke powder and the like, has corrosivity and adhesion, has a certain fluidity at a certain temperature, and will cause serious pollution to the surrounding environment and groundwater resources if not stored properly; the tar residue has been listed in the National Hazardous Waste List, and its treatment needs a higher cost and needs to be entrusted to a qualified enterprise for treatment; but the separated tar residue contains part of the coal tar, and if it is directly sent away for treatment, not only the coal tar will be lost, but also the treatment will be difficult. SUMMARY

[0003] The technical problem to be solved by the utility model is to provide a tar residue separation device, which realizes the drying of the tar residue and the recovery of the coal tar by separating the liquefied tar residue, reduces the amount of tar residue, and recycles the coal tar resources.

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

[0005] A tar residue separation device, which comprises a liquefaction tank, the feed inlet of the liquefaction tank is connected to the feed inlet of a dilute tar storage tank and the feed inlet of a raw material tar centrifuge through pipelines respectively, and the feed outlet of the liquefaction tank is connected to the feed inlet of a tar residue centrifuge through a pipeline and a delivery pump; the solid material outlet of the tar residue centrifuge is connected to the feed inlet of a dry residue storage tank, and the liquid material outlet of the tar residue centrifuge is connected to the feed inlet of a recovered tar storage tank through a pipeline.

[0006] Preferably, the dilute tar storage tank is a coal tar deep processing device 1000m 3 A tar carbon steel storage tank, and the dilute tar is sourced from the coal tar of a coal tar production manufacturer.

[0007] Preferably, the raw material tar centrifuge is a three-phase horizontal screw centrifuge, the model number is Z 5E, and the manufacturer is Flottweg Co., Ltd.

[0008] Preferably, the feed inlet of the raw tar centrifuge is communicated to the discharge outlet of the raw tar storage tank, the raw tar centrifuge is provided with a tar residue outlet, a waste water outlet and a tar outlet, wherein the tar residue outlet is communicated to the feed inlet of the liquefaction tank, the waste water outlet is communicated to the feed inlet of the waste water storage tank, and the tar outlet is communicated to the feed inlet of the anhydrous tar storage tank.

[0009] Preferably, the liquefaction tank comprises a tank body provided with a temperature control jacket and a stirring device, and the tank body is provided with a liquid level meter and a temperature sensor.

[0010] Preferably, the tar residue centrifuge comprises an explosion-proof motor and a centrifuge bucket, the explosion-proof motor and the centrifuge bucket are connected through a belt transmission device to realize the separation of the liquefied tar residue.

[0011] Preferably, the conveying pump is a screw pump, model YKHB12-1, and the manufacturer is Laiwu Blant Metallurgical New Material Co., Ltd.

[0012] Due to the adoption of the above technical scheme, the beneficial effects of the present application are as follows:

[0013] In summary, the present application realizes efficient separation and resource utilization of tar residue by liquefying the tar residue through the liquefaction tank and then separating the tar therefrom through strong centrifugation, and the dry residue obtained has low tar content, is easy to handle and has little harm to the environment. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a structural schematic view of the present application;

[0015] In the figure, 1, liquefaction tank; 2, dilute tar storage tank; 3, raw tar centrifuge; 4, conveying pump; 5, tar residue centrifuge; 6, dry residue storage tank; 7, recovered tar storage tank; 8, raw tar storage tank; 9, waste water storage tank; 10, anhydrous tar storage tank. DETAILED DESCRIPTION

[0016] The present application will be further described below in combination with the drawings and examples.

[0017] Example 1

[0018] As Figure 1As shown, the utility model is a tar residue separation device, including liquefied tank 1, the feed inlet (not marked) of liquefied tank 1 is communicated to dilution tar storage tank 2 and raw material tar centrifuge 3 respectively through pipeline (not marked), the discharge port of liquefied tank 1 is communicated to tar residue centrifuge 5 through pipeline and delivery pump 4, the solid material outlet of tar residue centrifuge 5 is communicated to dry residue storage tank 6, and the liquid material outlet of tar residue centrifuge 5 is communicated to recovery tar storage tank 7 through pipeline.

[0019] Liquefied tank 1 is equipped with temperature control jacket (not marked) and stirring device (not marked);Raw material tar centrifuge 3 is three-phase horizontal screw centrifuge, and the feed inlet is communicated to raw material tar storage tank 8, and the tar residue outlet is communicated to liquefied tank 1, and the waste water outlet is communicated to waste water storage tank 9, and the tar outlet is communicated to anhydrous tar storage tank 10.

[0020] Actual production process is that after the coal tar obtained in the previous process is treated by three-phase horizontal screw centrifuge, the high-concentration waste water is entered into high-concentration waste water storage tank 9 and enters subsequent waste water treatment device;The tar is entered into anhydrous tar storage tank 10;The tar residue is entered into liquefied tank 1 from the top of liquefied tank 1, while a certain amount of dilution tar is inputted into liquefied tank 1 in proportion, and the stirring device is started to continuously stir, and the heat exchange device is started to input steam into the temperature control jacket to heat the material in liquefied tank 1;The material in liquefied tank 1 is heated to fluid state and continuously keeps this state;When the material in liquefied tank 1 reaches a certain liquid level, the material is transported to tar residue centrifuge 5 by delivery pump 4, and oil residue separation is carried out in tar residue centrifuge 5, dry residue falls into dry residue storage tank 6 arranged below tar residue centrifuge 5, and the separated tar is recovered into recovery tar storage tank 7 for standby use.The separation effect of tar residue centrifuge 5 needs to be judged according to the dryness of dry residue and the residue content of recovery tar, and the separation speed and the aperture of filter screen are adjusted in time according to the separation effect, to ensure the yield of recovery tar.

[0021] It should be understood that these embodiments are only used for illustrating the utility model and are not used for limiting the scope of the utility model. In addition, it should be understood that after reading the content taught by the utility model, those skilled in the art can make various changes or modifications to the utility model, and these equivalent forms also fall within the scope defined by the appended claims of the present application.

Claims

1. A tar-slag separation device, characterized by: The liquefaction tank is connected to the dilute tar storage tank and the raw tar centrifuge through pipes respectively at the feed inlet, and the discharge outlet of the liquefaction tank is connected to the feed inlet of the tar residue centrifuge through a pipe and a delivery pump; the solid material outlet of the tar residue centrifuge is connected to the dry residue storage tank, and the liquid material outlet of the tar residue centrifuge is connected to the recovered tar storage tank through a pipe.

2. The tar and slag separation device of claim 1, wherein: The raw tar centrifuge is a three-phase horizontal screw centrifuge.

3. The tar and slag separation device of claim 1, wherein: The feed inlet of the raw tar centrifuge is connected to the discharge outlet of the raw tar storage tank; the raw tar centrifuge is provided with a tar residue outlet, a waste water outlet and a tar outlet, wherein the tar residue outlet is connected to the liquefaction tank, the waste water outlet is connected to the waste water storage tank, and the tar outlet is connected to the anhydrous tar storage tank.

4. The tar and slag separation device of claim 1, wherein: The liquefaction tank comprises a tank body provided with a temperature control jacket and a stirring device, and a liquid level meter and a temperature sensor are arranged in the tank body.

5. The tar and slag separation device of claim 1, wherein: The tar residue centrifuge comprises an explosion-proof motor and a centrifuge bucket, and the explosion-proof motor and the centrifuge bucket are connected through a belt transmission device.

6. The tar and slag separation device of claim 1, wherein: The delivery pump is a screw pump.

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