Ammonia water tank oil sludge precipitation system

Abstract

The utility model provides an ammonia water tank oil sludge precipitation system which comprises a water return pipeline, a water inlet tank, a connecting tank, an oil sludge discharge tank and an ammonia water tank, the water return pipeline is connected with the water inlet tank, the first oil sludge discharge tank unit is connected with the water inlet tank, the second oil sludge discharge tank unit is connected with the connecting tank, and the connecting tank is connected with the first ammonia water tank unit; the first ammonia water tank unit is connected with the second ammonia water tank unit, the second ammonia water tank unit is connected with the third ammonia water tank unit, and two ammonia water tanks positioned on two sides of the third ammonia water tank unit are respectively connected with the fourth ammonia water tank unit; the oil sludge discharge tank comprises a tank body and a discharge pipe, the bottom of the tank body is provided with a conical part, and the discharge pipe is connected to the bottom of the conical part. After the gate valve is opened, oil sludge at the bottom of the oil sludge discharge tank is pressed out of the oil sludge discharge tank under the pressure of middle-upper-layer substances in the oil sludge discharge tank, so that the cleaning period of the oil sludge precipitation system of the ammonia water tank is prolonged, the cleaning time of each time is shortened, the crane cost is saved, and the oil quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ammonia water tanks for carbonization furnaces, in particular to an oil sludge precipitation system for an ammonia water tank. Background Art

[0002] The raw coal dust is too large, and the carbonization furnace requires that the coal dust must be controlled within 10%. However, in coastal areas or the south, due to climate problems, the coal is too wet, the screening effect is not good, and the dust entering the furnace reaches more than 30%, resulting in the blockage of the carbonization furnace bridge pipe (specification DN900). After the DN900 bridge pipe is blocked, the pipe diameter becomes thinner and the suction force becomes larger. A large part of the small particles and dust are sucked out from the bridge pipe and enter the water seal box and Venturi tower.

[0003] These two links are used to wash the coal gas, and the powder and small coal particles flow into the ammonia tank sludge precipitation system along with the ammonia water. Figure 1 The existing ammonia tank sludge precipitation system has 36 ammonia tanks, such as Figure 2 As shown, the bottoms of the existing 36 ammonia water tanks are all flat and closed structures, and do not have the function of draining sludge from the bottom. The 36 ammonia water tanks are divided into 4 rows, with 9 ammonia water tanks in each row. The ammonia water tank in the middle of the first row is connected to the return water pipeline. After the ammonia water flows into the ammonia water tank in the middle of the first row, it is divided into two paths and flows to the ammonia water tanks on both sides of the first row respectively. The outermost ammonia water tanks in the first row are respectively connected to the outermost ammonia water tanks in the second row, so that the ammonia water flows from the outside of the ammonia water tanks in the second row to the inside.

[0004] The two ammonia water tanks located inside the second row are connected to the two ammonia water tanks located inside the third row. In the third row, ammonia water flows from inside to outside, and the outermost ammonia water tanks in the third row are respectively connected to the outermost ammonia water tanks in the fourth row. An ammonia water tank located in the middle of the fourth row is used to collect tar. In the fourth row, ammonia water flows from the outside to the middle and finally gathers in an ammonia water tank located in the middle of the fourth row.

[0005] When the ammonia water flows through each ammonia water tank in the above-mentioned flow mode, the powder and small-particle coal blocks mixed in the ammonia water will gradually settle in the ammonia water tank.

[0006] Coal powder and small particles precipitated in the ammonia tank are about 40 tons per day, which cannot be cleaned quickly. Since the ammonia tank cannot discharge sludge from the bottom, it can only be cleaned manually or by using a crane to use a grab bucket according to the precipitation situation. It takes about 1 to 2 months to clean it up, and it is cleaned up about 2 months after cleaning. If there is a lot of sludge precipitation, it will lead to oil and water not being separated, scraper oiling, oil product test indicators not being qualified, and conveyor belt corrosion (the conveyor belt of the coke discharge system is replaced every 4 to 6 months). Utility Model Content

[0007] The technical problem to be solved by the utility model is to provide an ammonia water tank sludge precipitation system, which can reduce the cleaning time, save crane costs and improve the quality of oil products.

[0008] The utility model is achieved in this way:

[0009] The utility model provides an ammonia water tank oil sludge precipitation system, comprising a return water pipeline, a water inlet tank, a connecting tank, a plurality of oil sludge discharge tanks and a plurality of ammonia water tanks;

[0010] The plurality of ammonia water tanks are divided into a first ammonia water tank unit, a second ammonia water tank unit, a third ammonia water tank unit and a fourth ammonia water tank unit;

[0011] Located in the same ammonia tank unit, two adjacent ammonia tanks are connected to each other;

[0012] The plurality of oil sludge tanks are divided into a first row oil sludge tank unit and a second row oil sludge tank unit;

[0013] The first row of oil sludge tank units is connected to the second row of oil sludge tank units and is located in the same row of oil sludge tank units, and two adjacent rows of oil sludge tanks are connected to each other;

[0014] The water inlet tank, the connecting tank, the plurality of oil sludge discharge tanks and the plurality of ammonia water tanks form an oil sludge precipitation system distributed in a rectangular array;

[0015] The return water pipe, the water inlet tank and the connecting tank are arranged at the central axis of the sludge sedimentation system, and the return water pipe is connected to the water inlet tank, and the connecting tank is arranged on a side of the water inlet tank away from the return water pipe;

[0016] The water inlet tank, the first ammonia water tank unit and the first row of sludge tank units are arranged in the first row;

[0017] The connecting tank, the second ammonia tank unit and the second row of sludge tank units are arranged in the second row;

[0018] The third ammonia water tank unit is arranged in the third row;

[0019] The fourth ammonia water tank unit is arranged in the fourth row;

[0020] The first row of oil sludge tank units is connected to the water inlet tank, the second row of oil sludge tank units is connected to the connecting tank, and the connecting tank is connected to the first ammonia water tank unit;

[0021] In the first ammonia water tank unit, an ammonia water tank farthest from the water inlet tank is connected to the second ammonia water tank unit, and an ammonia water tank closest to the connecting tank in the second ammonia water tank unit is connected to an ammonia water tank located inside the third ammonia water tank unit, so that the ammonia water is divided into two paths in the third ammonia water tank unit;

[0022] The two ammonia water tanks located on both sides of the third ammonia water tank unit are respectively connected to the two ammonia water tanks located on the outside of the fourth ammonia water tank unit, so that the ammonia water flows from the outside of the fourth ammonia water tank unit to the inside;

[0023] Each of the oil sludge drain tanks comprises a tank body and a discharge pipe. The bottom of each of the tank bodies has a conical portion, and the discharge pipe is connected to the bottom of the conical portion.

[0024] Furthermore, the number of the oil-draining sludge tanks is eight, and the number of the ammonia water tanks is twenty-six;

[0025] The water inlet tank, connecting tank, eight oil sludge discharge tanks and twenty-six ammonia water tanks form a four-row and nine-column oil sludge sedimentation system.

[0026] Further, the first ammonia water tank unit and the second ammonia water tank unit each have four ammonia water tanks, and the third ammonia water tank unit and the fourth ammonia water tank unit each have nine ammonia water tanks;

[0027] The first row of oil sludge tank units and the second row of oil sludge tank units respectively have four oil sludge tanks.

[0028] Furthermore, a gate valve is provided between the discharge pipe and the tapered portion.

[0029] The utility model has the advantages that after ammonia water enters the ammonia water tank oil sludge precipitation system, it first passes through eight oil sludge discharge tanks with discharge pipes, and the oil sludge is precipitated at the bottom of the oil sludge discharge tank. After the gate valve is opened, the oil sludge at the bottom of the oil sludge discharge tank is pressed out of the oil sludge discharge tank by the pressure of the middle and upper layer materials in the oil sludge discharge tank, thereby extending the cleaning cycle of the ammonia water tank oil sludge precipitation system, reducing the time for each cleaning, and saving crane costs.

[0030] Compared with the prior art, the improved ammonia water tank sludge sedimentation system has less sludge deposited in the ammonia water tank sludge sedimentation system, which can improve the quality of oil products. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The present invention will be further described below in conjunction with the embodiments with reference to the accompanying drawings.

[0032] Figure 1 The present invention is a schematic diagram of the structure of an ammonia water tank oil sludge precipitation system and a flow path of ammonia water in the ammonia water tank oil sludge precipitation system in the prior art.

[0033] Figure 2 It is a schematic diagram of the structure of a single ammonia water tank in the prior art.

[0034] Figure 3 The utility model is a schematic diagram of the structure of the ammonia water tank oil sludge precipitation system and the flow path of ammonia water in the ammonia water tank oil sludge precipitation system.

[0035] Figure 4 This is a schematic diagram of the structure of a single oil drain sludge tank of the utility model.

[0036] Description of the numbers in the figure:

[0037] 1. Return water pipe; 2. Water inlet tank; 3. Connecting tank; 4. Oil sludge tank; 5. Ammonia water tank; 6. First ammonia water tank unit; 7. Second ammonia water tank unit; 8. Third ammonia water tank unit; 9. Fourth ammonia water tank unit; 10. First row of oil sludge tank unit; 11. Second row of oil sludge tank unit; 12. Tank body; 13. Discharge pipe; 14. Gate valve; 15. Conical part. DETAILED DESCRIPTION

[0038] See also Figure 3 to Figure 4 The utility model provides an ammonia water tank oil sludge precipitation system, comprising a return water pipeline 1, a water inlet tank 2, a connecting tank 3, a plurality of oil sludge discharge tanks 4 and a plurality of ammonia water tanks 5;

[0039] The plurality of ammonia water tanks 5 are divided into a first ammonia water tank unit 6, a second ammonia water tank unit 7, a third ammonia water tank unit 8 and a fourth ammonia water tank unit 9;

[0040] Located in the same ammonia water tank 5 unit, two adjacent ammonia water tanks 5 are connected to each other;

[0041] The plurality of oil sludge tanks 4 are divided into a first row oil sludge tank unit 10 and a second row oil sludge tank unit 11;

[0042] The first row of oil sludge tank units 10 are connected to the second row of oil sludge tank units 11 and are located in the same row of oil sludge tank units 4, and two adjacent rows of oil sludge tanks 4 are connected to each other;

[0043] The water inlet tank 2, the connecting tank 3, the plurality of oil sludge discharge tanks 4 and the plurality of ammonia water tanks 5 form an oil sludge precipitation system distributed in a rectangular array;

[0044] The return water pipe 1, the water inlet tank 2 and the connecting tank 3 are arranged at the central axis of the sludge sedimentation system, and the return water pipe 1 is connected to the water inlet tank 2, and the connecting tank 3 is arranged on a side of the water inlet tank 2 away from the return water pipe 1;

[0045] The water inlet tank 2, the first ammonia water tank unit 6 and the first row of sludge tank units 10 are arranged in the first row;

[0046] The connecting tank 3, the second ammonia tank unit 7 and the second row of oil sludge tank units 11 are arranged in the second row;

[0047] The third ammonia water tank unit 8 is arranged in the third row;

[0048] The fourth ammonia water tank unit 9 is arranged in the fourth row; the middle ammonia water tank in the fourth row is used to collect tar.

[0049] The first row of oil sludge tank units 10 are connected to the water inlet tank 2, the second row of oil sludge tank units 11 are connected to the connecting tank 3, and the connecting tank 3 is connected to the first ammonia water tank unit 6;

[0050] In the first ammonia water tank unit 6, an ammonia water tank 5 farthest from the water inlet tank 2 is connected to the second ammonia water tank unit 7, and an ammonia water tank 5 closest to the connection tank 3 in the second ammonia water tank unit 7 is connected to an ammonia water tank 5 located inside the third ammonia water tank unit 8, so that the ammonia water is divided into two paths in the third ammonia water tank unit 8;

[0051] The two ammonia water tanks 5 located on both sides of the third ammonia water tank unit 8 are respectively connected to the two ammonia water tanks 5 located on the outside of the fourth ammonia water tank unit 9, so that the ammonia water flows from the outside of the fourth ammonia water tank unit 9 to the inside;

[0052] like Figure 4 As shown, each of the oil-draining mud tanks 4 includes a tank body 12 and a discharge pipe 13. The bottom of each of the tank bodies 12 has a tapered portion 15, that is, the bottom of the tank body 12 is a tapered structure. The discharge pipe 13 is connected to the bottom of the tapered portion 15, and the discharge pipe 13 is connected to the tapered portion 15. By arranging the tapered portion 15 and the discharge pipe 13 at the bottom of the tank body 12 of the oil-draining mud tank 4, the oil-draining mud tank 4 has a bottom discharge function. After the ammonia water naturally precipitates the sludge in the oil-draining mud tank 4, the sludge can be discharged from the discharge pipe 13. The specification of the discharge pipe 13 is DN200.

[0053] Specifically, eight oil-draining sludge tanks 4 are provided, and twenty-six ammonia water tanks 5 are provided; the oil-draining sludge tanks 4 are used to precipitate oil sludge, and the connecting tanks 3 and ammonia water tanks 5 are used to naturally precipitate light oil, ammonia water and heavy oil;

[0054] The water inlet tank 2, the connecting tank 3, the eight oil sludge discharge tanks 4 and the twenty-six ammonia water tanks 5 form a four-row and nine-column oil sludge precipitation system.

[0055] Specifically, the first ammonia water tank unit 6 and the second ammonia water tank unit 7 each have four ammonia water tanks 5, and the third ammonia water tank unit 8 and the fourth ammonia water tank unit 9 each have nine ammonia water tanks 5;

[0056] The first row of oil sludge tank units 10 and the second row of oil sludge tank units 11 each have four oil sludge tanks 4 .

[0057] Specifically, a gate valve 14 is further provided between the discharge pipe 13 and the tapered portion 15 .

[0058] In this application, the path of ammonia water flowing in the sludge precipitation system of ammonia water tank 5 is as follows:

[0059] like Figure 3As shown, the ammonia water flows into the water inlet tank 2 through the return pipe 1, and then the ammonia water flows to the first row of the first sludge tank units 10 and the second row of the second sludge tank units 11 in the second row. After passing through eight oil sludge tanks 4, the sludge in the ammonia water is precipitated in the oil sludge tank 4. Under the pressure of the middle and upper layer materials in the oil sludge tank 4, the sludge at the bottom of the oil sludge tank 4 is pressed out of the oil sludge tank 4.

[0060] Subsequently, the ammonia water flows from the second row of sludge tank units 11 into the connecting tank 3, and then flows into the first ammonia water tank unit 6 located in the first row, and the ammonia water flows from right to left in the first ammonia water tank unit 6.

[0061] After flowing out of the first ammonia water tank unit 6, the ammonia water moves from the outside of the second ammonia water tank unit 7 in the second row to the side close to the connecting tank 3, and flows into the third ammonia water tank unit 8 from the third row, the fourth ammonia water tank 5 from left to right.

[0062] In the third ammonia water tank unit 8 , the ammonia water is divided into two paths, and the two paths of ammonia water flow from the inside to the outside of the third ammonia water tank unit 8 and flow into the fourth ammonia water tank unit 9 from both ends of the fourth ammonia water tank unit 9 .

[0063] In the fourth ammonia water tank unit 9 , two paths of ammonia water flow from the outside to the middle, and finally flow into an ammonia water tank 5 located in the center of the fourth ammonia water tank unit 9 .

[0064] In the present application, the ammonia water is overflowed, that is, the ammonia water in the water inlet tank 2 overflows into the oil sludge tank 4, the ammonia water in the oil sludge tank 4 overflows into the connecting tank 3, and the ammonia water in the connecting tank 3 overflows into the ammonia water tank 5.

[0065] The overflow method can ensure the stability of the water in the water inlet tank 2, the oil discharge sludge tank 4, the connecting tank 3 or the ammonia water tank 5 when the ammonia water flows to the water inlet tank 2, the oil discharge sludge tank 4, the connecting tank 3 or the ammonia water tank 5, without affecting the precipitation of the sludge in the oil discharge sludge tank 4, and without affecting the natural precipitation of the light oil, ammonia water and heavy oil in the connecting tank 3 or the ammonia water tank 5.

[0066] After ammonia enters the ammonia tank sludge sedimentation system, it first passes through eight drain sludge tanks with discharge pipes, and the sludge is deposited at the bottom of the drain sludge tank. After the gate valve is opened, the sludge at the bottom of the drain sludge tank is pressed out of the drain sludge tank by the pressure of the middle and upper layer materials in the drain sludge tank, thereby extending the cleaning cycle of the ammonia tank sludge sedimentation system, reducing the time for each cleaning, and saving crane costs.

[0067] Compared with the prior art, the improved ammonia water tank sludge sedimentation system has less sludge deposited in the ammonia water tank sludge sedimentation system, which can improve the quality of oil products.

[0068] Although the specific implementation methods of the present invention are described above, those skilled in the art should understand that the specific embodiments described are only illustrative and are not intended to limit the scope of the present invention. Equivalent modifications and changes made by those skilled in the art in accordance with the spirit of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. An ammonia tank sludge precipitation system, characterized by: It includes a return water pipeline, a water inlet tank, a connecting tank, a plurality of oil sludge tanks and a plurality of ammonia water tanks; The plurality of ammonia water tanks are divided into a first ammonia water tank unit, a second ammonia water tank unit, a third ammonia water tank unit and a fourth ammonia water tank unit; Located in the same ammonia tank unit, two adjacent ammonia tanks are connected to each other; The plurality of oil sludge tanks are divided into a first row oil sludge tank unit and a second row oil sludge tank unit; The first row of oil sludge tank units is connected to the second row of oil sludge tank units and is located in the same row of oil sludge tank units, and two adjacent rows of oil sludge tanks are connected to each other; The water inlet tank, the connecting tank, the plurality of oil sludge discharge tanks and the plurality of ammonia water tanks form an oil sludge precipitation system distributed in a rectangular array; The return water pipe, the water inlet tank and the connecting tank are arranged at the central axis of the sludge sedimentation system, and the return water pipe is connected to the water inlet tank, and the connecting tank is arranged on a side of the water inlet tank away from the return water pipe; The water inlet tank, the first ammonia water tank unit and the first row of sludge tank units are arranged in the first row; The connecting tank, the second ammonia tank unit and the second row of sludge tank units are arranged in the second row; The third ammonia water tank unit is arranged in the third row; The fourth ammonia water tank unit is arranged in the fourth row; The first row of oil sludge tank units is connected to the water inlet tank, the second row of oil sludge tank units is connected to the connecting tank, and the connecting tank is connected to the first ammonia water tank unit; In the first ammonia water tank unit, an ammonia water tank farthest from the water inlet tank is connected to the second ammonia water tank unit, and an ammonia water tank closest to the connecting tank in the second ammonia water tank unit is connected to an ammonia water tank located inside the third ammonia water tank unit, so that the ammonia water is divided into two paths in the third ammonia water tank unit; The two ammonia water tanks located on both sides of the third ammonia water tank unit are respectively connected to the two ammonia water tanks located on the outside of the fourth ammonia water tank unit, so that the ammonia water flows from the outside of the fourth ammonia water tank unit to the inside; Each of the oil sludge drain tanks comprises a tank body and a discharge pipe. The bottom of each of the tank bodies has a conical portion, and the discharge pipe is connected to the bottom of the conical portion.

2. The ammonia tank sludge precipitation system according to claim 1, characterized in that: There are eight oil-draining sludge tanks and twenty-six ammonia water tanks; The water inlet tank, connecting tank, eight oil sludge discharge tanks and twenty-six ammonia water tanks form a four-row and nine-column oil sludge sedimentation system.

3. The ammonia tank sludge precipitation system according to claim 2, characterized in that: The first ammonia water tank unit and the second ammonia water tank unit each have four ammonia water tanks, and the third ammonia water tank unit and the fourth ammonia water tank unit each have nine ammonia water tanks; The first row of oil sludge tank units and the second row of oil sludge tank units respectively have four oil sludge tanks.

4. The ammonia tank sludge precipitation system according to claim 1, characterized in that: A gate valve is also arranged between the discharge pipe and the tapered portion.

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