High-efficiency feeding device for oil displacement purifying agent of circulating ammonia water in coal coking industry

Abstract

The utility model discloses an efficient feeding device for an oil displacement purifying agent of circulating ammonia water in the coal coking industry, which comprises an ammonia water buffer tank and an oil displacement purifying agent storage tank which are communicated through a transmission pipe. The ammonia water buffer tank is fixedly connected with an ammonia water inlet pipe and an ammonia water outlet pipe, and a plurality of cells are formed in the ammonia water buffer tank. The feeding device is introduced into the ammonia water buffer tank through the conveying pipe, an ammonia water mixture and an oil displacement purifying agent sequentially pass through the multiple cells, the oil-water layering effect is improved, meanwhile, through the process, the mixing uniformity of the oil displacement purifying agent and the ammonia water is further improved, and the oil displacement purifying agent is more uniform. The effective mixing of the oil displacement purifying agent and the ammonia water under the normal circulating pipeline pressure can be ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of coal coking, and relates to a high-efficiency feeding device for oil displacement purifier of circulating ammonia water in the coal coking industry. Background Art

[0002] The coal coking industry usually uses residual ammonia water to circulate and wash out coke oven gas, so as to reduce the oil content in the gas after washing. Then the tar is circulated to the ammonia water pool through ammonia water for static sedimentation separation, but the separation effect is not good and the oil-water separation is not thorough. Therefore, in order to improve the oil-water separation effect and separation speed, the industry usually adds oil-displacing purifiers to the circulating ammonia water pool to demulsify the emulsified oil in the water that is difficult to separate. However, it is found in the application that when adding oil-displacing purifiers to the circulating ammonia water pool, the ammonia water pool is often very large, causing the demulsifier to mix unevenly in the pool, which greatly affects the stability of the oil separation effect during operation.

[0003] Aiming at the problem of uneven mixing of demulsifier in ammonia water pool, a high-efficiency feeding device for oil displacement purifier of circulating ammonia water in coal coking industry is proposed. Utility Model Content

[0004] In order to solve the problems existing in the background technology, the utility model proposes a high-efficiency feeding device for oil displacement purifier of circulating ammonia water in coal coking industry.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is as follows: an efficient feeding device for oil-displacing purifiers for circulating ammonia water in the coal coking industry, comprising an ammonia water buffer tank and an oil-displacing purifier storage tank: the ammonia water buffer tank and the oil-displacing purifier storage tank are connected by a transmission pipe, an ammonia water inlet pipe and an ammonia water outlet pipe are fixedly connected to the ammonia water buffer tank, a plurality of grid grooves are provided in the ammonia water buffer tank, and the ammonia water mixture flows among the plurality of grid grooves in turn; along the flow direction of the ammonia water mixture: an overflow hole is provided at the upper end of the side wall between two adjacent grid grooves, a flow hole is provided at the lower end of the inner wall between two adjacent grid grooves, a pump body is provided inside the flow hole, and the pump body is used to accelerate the flow speed of the ammonia water mixture

[0006] Furthermore, the oil displacement purifier in the oil displacement purifier storage tank flows into the ammonia buffer tank through the transmission pipe; the flow direction of the oil displacement purifier is the positive direction: the transmission pipe is provided with a diaphragm pump, a flow meter and a check valve in sequence along the positive direction.

[0007] Furthermore, a Y-type filter is fixedly connected to the ammonia water outlet pipe, and the Y-type filter is used to filter impurities in the ammonia water and the oil-displacing purifier.

[0008] Furthermore, the number of the grid slots 7 is 16, and they are arranged in a 4*4 manner in the ammonia buffer tank.

[0009] Compared with the prior art, the utility model has the following beneficial effects:

[0010] By introducing the feeding device into the ammonia buffer tank through the transmission pipe, the mixture of ammonia and oil-displacing purifier is passed through a plurality of grid grooves in sequence, thereby improving the stratification effect of oil and water. At the same time, through this process, the uniformity of the mixing of the oil-displacing purifier and ammonia water is further improved, and the effective mixing of the oil-displacing purifier and ammonia water under normal circulation pipeline pressure can be guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 The utility model is a structural schematic diagram of an efficient feeding device for oil displacement purifier of circulating ammonia water in coal coking industry.

[0012] Figure 2 It is a cross-sectional view of the ammonia buffer tank from a top-down perspective.

[0013] Figure 3 This is a front view of the ammonia buffer tank.

[0014] Figure 4 It is a schematic diagram of the inner wall structure between two grids in the flow direction of ammonia water.

[0015] In the figure: 1. Ammonia buffer tank; 2. Oil displacement purifier storage tank; 3. Diaphragm pump; 4. Flow meter; 5. Check valve; 6. Y-type filter; 7. Grid; 8. Overflow hole; 9. Flow hole; 10. Pump body. DETAILED DESCRIPTION

[0016] 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.

[0017] like Figure 1-Figure 4 As shown, the technical solution adopted by the utility model is as follows: an efficient feeding device for oil-displacing purifiers for circulating ammonia water in the coal coking industry, comprising an ammonia water buffer tank 1 and an oil-displacing purifier storage tank 2, wherein the ammonia water buffer tank 1 is used to temporarily store ammonia water, and the oil-displacing purifier storage tank is used to store the oil-displacing purifier, and the oil-displacing purifier is used to demulsify the emulsified oil in water that is difficult to separate. In addition, in the existing solution: ammonia water is used to wash and cool coke oven gas, and can absorb and separate tar in the gas, and the ammonia water entering the ammonia water buffer tank itself will contain some tar.

[0018] The ammonia buffer tank 1 and the oil displacement purifier storage tank 2 are connected via a transmission pipe, and the oil displacement purifier in the oil displacement purifier storage tank 2 flows into the ammonia buffer tank 1 via the transmission pipe.

[0019] The flow direction of the oil displacement purifier is the positive direction: the transmission pipe is provided with a diaphragm pump 3, a flow meter 4 and a check valve 5 in sequence along the positive direction. The diaphragm pump 3 is a conveying device for the oil displacement purifier, which can quantitatively, accurately and continuously add the oil displacement purifier to the ammonia buffer tank 1. The flow meter 4 is used to monitor the flow of the oil displacement purifier in real time to ensure that the added amount meets the process requirements and prevents excessive or insufficient amounts. The check valve 5 is used to prevent the oil displacement purifier from flowing back and ensure the unidirectional flow of the oil displacement purifier in the transmission pipe.

[0020] An ammonia water inlet pipe and an ammonia water outlet pipe are fixedly connected to the ammonia water buffer tank 1. A Y-type filter 6 is fixedly connected to the ammonia water outlet pipe. The Y-type filter 6 is used to filter impurities in the ammonia water and the oil displacement purifier.

[0021] A plurality of grids 7 are provided in the ammonia buffer tank 1. The ammonia-water mixture flows in an M-shaped track between the plurality of grids 7. The number of grids 7 is 16, and they are arranged in a 4*4 manner in the ammonia buffer tank 1.

[0022] Along the flow direction of the ammonia water mixture: an overflow hole 8 is provided at the upper end of the inner wall between two adjacent grid grooves 7. A flow hole 9 is provided at the lower end of the side wall between two adjacent grid grooves 7. A pump body 10 is provided inside the flow hole 9. The pump body 10 is used to accelerate the flow speed of the ammonia water mixture.

[0023] The ammonia water buffer tank 1 is divided into 16 cells 7 , and the ammonia water mixture enters each cell 7 in turn, so that the oil displacement purifier and the ammonia water can be fully contacted and mixed in the cell 7 . Figure 2 The arrows in the figure indicate the flow trajectory directions of the ammonia water mixture and the oil displacement purifier.

[0024] Due to the difference in density between oil and water, oil naturally floats on the water surface. Adding oil displacement purifier will speed up the oil-water stratification process.

[0025] The upper and lower parts between the grids 7 are provided with overflow holes 8 and flow holes 9, respectively, so that oil can flow from the overflow hole 8 into the next grid 7, and water can flow from the flow hole 9 into the next grid 7. As the ammonia water mixture passes through each grid 7 in turn, the process will be repeated continuously, thereby improving the stratification effect of oil and water. At the same time, through this process, the uniformity of the mixing of the oil displacement purifier and the ammonia water is further improved. When the oil and water leave the ammonia water buffer tank 1 after stratification, the oil layer will be discharged from the ammonia water buffer tank 1 through the overflow hole 8, and the ammonia water layer will be discharged from the ammonia water buffer tank through the flow hole 9.

[0026] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A highly efficient feeding device for oil displacement purifier of circulating ammonia water in coal coking industry, characterized in that: The invention comprises an ammonia buffer tank (1) and an oil displacement purifier storage tank (2): the ammonia buffer tank (1) and the oil displacement purifier storage tank (2) are connected via a transmission pipe, an ammonia water inlet pipe and an ammonia water outlet pipe are fixedly connected to the ammonia buffer tank (1), a plurality of grids (7) are provided in the ammonia buffer tank (1), and an ammonia water mixture flows in sequence between the plurality of grids (7); Along the flow direction of the ammonia water mixture: an overflow hole (8) is provided at the upper end of the side wall between two adjacent grid grooves (7), a flow hole (9) is provided at the lower end of the inner wall between two adjacent grid grooves (7), and a pump body (10) is provided inside the flow hole (9).

2. The high-efficiency feeding device for oil displacement purifier of circulating ammonia water in coal coking industry according to claim 1 is characterized by: The oil displacement purifier in the oil displacement purifier storage tank (2) flows into the ammonia buffer tank (1) through the transmission pipe; The flow direction of the oil displacement purifier is the positive direction: the transmission pipe is provided with a diaphragm pump (3), a flow meter (4) and a check valve (5) in sequence along the positive direction.

3. The high-efficiency feeding device for oil displacement purifier of circulating ammonia water in coal coking industry according to claim 1 is characterized in that: A Y-type filter (6) is fixedly connected to the ammonia water outlet pipe, and the Y-type filter (6) is used to filter impurities in the ammonia water and the oil displacement purifier.

4. The high-efficiency feeding device for oil displacement purifier of circulating ammonia water in coal coking industry according to claim 1 is characterized by: The number of the grid slots (7) is 16, and they are arranged in a 4*4 manner in the ammonia buffer tank (1).

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