Device for improving oil yield of shale oil

Abstract

The utility model discloses a device for improving the oil yield of shale oil, which comprises a plurality of sprayers arranged in a gas pipeline connected between a water seal tank and a venturi tower, and a hot water circulating pump with an inlet end connected with a heat exchange pool and an outlet end respectively connected with the sprayers and the water inlet end of the venturi tower through pipelines.

Description

Technical Field

[0001] The utility model relates to the technical field of dry distillation oil refining equipment, in particular to a device for improving the yield of shale oil. Background Art

[0002] The gas temperature produced by the low-temperature distillation process of oil shale is around 500°C, and it carries a large amount of rock dust. The high-temperature gas enters the water seal box and is washed once before entering the normal-temperature gas pipeline. Affected by the low-temperature pipe wall, the unwashed rock dust in the gas mixes with gaseous substances and solid substances (tar) to form oil sludge, which will stick to the pipe wall. Over time, the flow rate of the gas pipeline is affected by the oil sludge, becoming narrower and narrower, affecting the oil yield of shale oil. Utility Model Content

[0003] In response to the above technical problems, the utility model provides a device for improving the yield of shale oil.

[0004] In order to achieve the above-mentioned purpose, the technical solution of the present utility model is as follows:

[0005] A device for improving shale oil yield, comprising:

[0006] Several nozzles are installed in the gas pipeline between the water seal box and the venturi tower:

[0007] The hot water circulation pump has an inlet end connected to the heat exchange tank, and an outlet end connected to the nozzle and the water inlet end of the venturi tower through pipelines.

[0008] There are seven nozzles in total, and they are arranged in a row in the gas pipeline along the length direction of the gas pipeline.

[0009] The nozzle is a 304 spiral nozzle with a nozzle diameter of DN17mm.

[0010] The beneficial effects of this utility model include: it can reduce rock dust carried in high-temperature coal gas, facilitating coal gas decoking and purification in the electrostatic oil collector. Furthermore, with less rock dust in the coal gas, the amount of tar and rock dust adhering to the coal gas pipeline walls is reduced, while the coal gas flow rate is not affected. This utility model can also increase the oil yield from 50% to 52%. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0012] Figure 1 It is a principle diagram of the present utility model. DETAILED DESCRIPTION

[0013] To make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are merely illustrative and are not intended to limit the scope of the present invention. Furthermore, descriptions of known structures and technologies are omitted in the following description to avoid unnecessary confusion regarding the concepts of the present invention.

[0014] like Figure 1 As shown, a device for improving shale oil yield includes: a plurality of nozzles 2, arranged in a gas pipeline 6 connected between a water seal box 1 and a venturi tower 3; a hot water circulation pump 4, the inlet end of which is connected to a heat exchange tank 5, and the outlet end of which is connected to the nozzles 2 and the water inlet end of the venturi tower 3 through pipelines. The plurality of nozzles 2 is seven and is arranged in a row along the length of the gas pipeline 6. The nozzles 2 are 304 spiral nozzles with a nozzle diameter of DN17mm.

[0015] When the present invention is in use, seven nozzles 2 are installed in the gas pipeline 6 between the water seal box 1 and the venturi tower 3 of each retorting furnace. The circulating water performs a second scrubbing on the gas through the nozzles 2. The first, third, and fourth scrubbing processes are respectively the water seal box scrubbing process, the venturi tower scrubbing process, and the swirl plate tower scrubbing process. Specifically, when the circulating water is sprayed into the gas pipeline 6 by the nozzles 2, the high-temperature gas converts a portion of the sprayed water into water vapor, which quickly captures the rock dust, completing one scrubbing step. The scrubbed circulating water enters the heat circulation pipeline through the drainage pipe, and the scrubbed gas enters the venturi tower 3 along the original path for the next scrubbing step.

[0016] It should be understood that the above-described specific embodiments of the present invention are merely illustrative of or explanation of the principles of the present invention and do not constitute limitations of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention shall be included within the scope of protection of the present invention. In addition, the appended claims of the present invention are intended to cover all variations and modifications that fall within the scope and metes and bounds of the appended claims, or equivalents thereof.

Claims

1. A device for improving shale oil yield, characterized in that: include: A plurality of nozzles (2) are arranged in a gas pipeline (6) connected between a water seal box (1) and a venturi tower (3): The hot water circulation pump (4) has an inlet end connected to the heat exchange tank (5), and an outlet end connected to the nozzle (2) and the water inlet end of the venturi tower (3) through pipelines.

2. The device for improving shale oil yield according to claim 1, characterized in that: The plurality of nozzles (2) are seven in number and are arranged in a row in the gas pipeline (6) along the length direction of the gas pipeline (6).

3. A device for improving shale oil yield according to claim 1 or 2, characterized in that: The nozzle (2) is a 304 spiral nozzle with a nozzle diameter of DN17mm.

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