Tar separation system for spray tower of continuous graphitization furnace

Abstract

The utility model discloses a continuous graphitization furnace spray tower tar separation system which comprises a spray tower, an upper-layer liquid outlet valve is installed in the middle of the spray tower, and a bottom-layer liquid outlet valve is installed at the lower end of the spray tower. The layering condition of tar and water is visually displayed, accurate operation is facilitated, accurate positioning of the top end oil outlet pipe and the bottom end water outlet pipe is achieved through cooperation of the air cylinder and the connecting rod, tar and water with different densities are effectively separated and collected, tar can be collected, the separated water is recycled through the backflow pipe for cleaning of the spray tower, and the water recycling effect is good. According to the continuous graphitization furnace spray tower cleaning device, water resources are saved and recycled, emission of VOC and generation of waste water in the cleaning process of a traditional continuous graphitization furnace spray tower are reduced, the operation difficulty is lowered, and the operation safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tar separation devices, in particular to a continuous graphitization furnace spray tower tar separation system. Background Art

[0002] The continuous graphitization furnace spray tower is an important component of the ultra-high purity graphitization furnace tail gas purification system, and is mainly used to treat the tail gas generated by the furnace during the high-temperature production process.

[0003] In the process of cleaning the spray tower of the continuous graphitization furnace, the common problem is first manifested in the unorganized emission of VOC (volatile organic compounds). This is because the cleaning operation may disturb the organic matter deposited in the tower, causing them to be directly released into the atmosphere without effective control, causing pollution to the environment. Secondly, the cleaning process often requires flushing or soaking with water to remove attachments, which not only increases the burden on the wastewater treatment system, but may also lead to a significant increase in wastewater discharge, posing challenges to wastewater treatment and emission management. Finally, the cleaning operation itself is complex, especially when it is necessary to enter the tower for direct operation. The high temperature, corrosive environment and possible chemical residues increase the difficulty of operation and safety risks for on-site personnel. Strict protective measures and professional operating skills are required to ensure operation safety and efficiency. In view of this, in-depth research has been conducted on the above problems, and a separation system has been designed that can solve the above problems, reduce the difficulty of personnel operation, and significantly reduce VOC unorganized emissions.

[0004] There may already be technical means to solve the above problems in the existing technology, but this case intends to provide an alternative or replacement technical solution. Utility Model Content

[0005] In order to solve the problems raised in the background technology, the present invention is implemented through the following technical solutions: a continuous graphitization furnace spray tower tar separation system, comprising a spray tower, an upper liquid outlet valve is installed in the middle part of the spray tower, and a bottom liquid outlet valve is installed at the lower end of the spray tower;

[0006] An upper layer separator is installed at one end of the upper layer liquid outlet valve, an upper layer oil outlet pipe is installed at the upper end of the upper layer separator, an oil storage tank is installed at one end of the upper layer oil outlet pipe, an upper layer water outlet valve is installed at the lower end of the upper layer separator, a water tank is installed at one end of the upper layer water outlet valve, and a return pipe is connected between the water tank and the spray tower;

[0007] A bottom separator is installed at one end of the bottom liquid outlet valve, a bottom water outlet pipe is installed at the upper end of the bottom separator, the bottom water outlet pipe is connected to the water tank, and a bottom oil outlet valve is installed at the lower end of the bottom separator, the bottom oil outlet valve is connected to the oil storage tank;

[0008] The upper separator includes an upper visible box, the upper oil outlet pipe is inserted on the upper visible box, the upper oil outlet pipe is located inside the upper visible box and is a flexible and retractable structure, an upper connecting rod is movably inserted on the upper visible box, one end of the upper connecting rod is installed on the upper oil outlet pipe located inside the upper visible box, an upper cylinder is installed on the upper connecting rod located outside the upper visible box, and an upper connecting frame is installed between the upper cylinder and the upper visible box;

[0009] The bottom separator includes a bottom visual box, the bottom water outlet pipe is inserted on the bottom visual box, the bottom water outlet pipe is located inside the bottom visual box and is a flexible and retractable structure, a bottom connecting rod is movably inserted on the bottom visual box, one end of the bottom connecting rod is installed on the end of the bottom water outlet pipe located inside the bottom visual box, and the end of the bottom connecting rod located outside the bottom visual box is installed with a bottom cylinder, and a bottom connecting frame is installed between the bottom cylinder and the bottom visual box.

[0010] Preferably, an upper oil pump is installed on the upper oil outlet pipe.

[0011] Preferably, a bottom water pump is installed on the bottom water outlet pipe.

[0012] Preferably, a bottom layer oil pump is installed between the bottom layer oil outlet valve and the oil storage tank.

[0013] Preferably, a return water pump is installed on the return pipe.

[0014] Preferably, an oil drain valve is installed at the bottom end of the oil storage tank.

[0015] Beneficial effects

[0016] The utility model provides a tar separation system for a continuous graphitization furnace spray tower. Compared with the prior art, the utility model has the following beneficial effects: transparent and visible upper and lower boxes are used to intuitively display the stratification of tar and water, which is convenient for precise operation. The top oil outlet pipe and the bottom water outlet pipe are precisely positioned through the cooperation of the cylinder and the connecting rod, and tar and water of different densities are effectively separated and collected. Tar can be collected, and the separated water is recycled for cleaning the spray tower through a reflux pipe, thereby saving and recycling water resources. Not only is the emission of VOCs and the generation of wastewater in the cleaning process of the traditional continuous graphitization furnace spray tower reduced, but the difficulty of operation is also reduced, and the safety of the operation is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the main structure of a tar separation system for a continuous graphitization furnace spray tower according to the present invention.

[0018] Figure 2This is a partial main cross-sectional structural diagram of the upper separator part of the tar separation system of the continuous graphitization furnace spray tower of the utility model.

[0019] Figure 3 This is a partial main cross-sectional structural diagram of the bottom separator portion of a tar separation system of a continuous graphitization furnace spray tower according to the present invention.

[0020] In the figure: 1, spray tower, 2, upper liquid outlet valve, 3, bottom liquid outlet valve, 4, upper separator, 41, upper visible box, 42, upper connecting rod, 43, upper cylinder, 44, upper connecting frame, 5, upper oil outlet pipe, 6, oil storage tank, 7, upper water outlet valve, 8, water tank, 9, return pipe, 10, bottom separator, 101, bottom visible box, 102, bottom connecting rod, 103, bottom cylinder, 104, bottom connecting frame, 11, bottom water outlet pipe, 12, bottom oil outlet valve, 13, upper oil pump, 14, bottom water pump, 15, bottom oil pump, 16, return water pump, 17, oil drain valve. DETAILED DESCRIPTION

[0021] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the present invention.

[0022] Example: Through the personnel in this field, all electrical components in this case are connected to their corresponding power supplies through wires, and appropriate controllers should be selected according to actual conditions to meet control requirements. The specific connection and control sequence should refer to the following working principle, and the electrical connection between each electrical component is completed in the order of working. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principle and process, and does not explain the electrical control.

[0023] See also Figure 1-3 In order to solve the problems encountered in the process of cleaning the continuous graphitization furnace spray tower 1, that is, during the cleaning process, VOC unorganized emissions may be caused, wastewater discharge may be increased, and the difficulty of on-site personnel operation may be increased, this technical solution is designed. The detailed technical solution is as follows;

[0024] A continuous graphitization furnace spray tower tar separation system comprises a spray tower 1, an upper liquid outlet valve 2 is installed in the middle of the spray tower 1, and a bottom liquid outlet valve 3 is installed at the lower end of the spray tower 1;

[0025] It should be noted that when cleaning the spray tower 1, a mixture of tar, liquid tar and tar will be generated inside the spray tower 1. After standing, the tar with the smallest density is located in the upper layer, the water is located in the lower layer of the tar, and the liquid tar with the largest density is located in the lower layer of the water. The upper layer outlet valve 2 is set at the water layer.

[0026] Specifically, an upper layer separator 4 is installed at one end of the upper layer liquid outlet valve 2, an upper layer oil outlet pipe 5 is installed at the upper end of the upper layer separator 4, an oil storage tank 6 is installed at one end of the upper layer oil outlet pipe 5, an upper layer water outlet valve 7 is installed at the lower end of the upper layer separator 4, a water tank 8 is installed at one end of the upper layer water outlet valve 7, and a return pipe 9 is connected between the water tank 8 and the spray tower 1;

[0027] Specifically, the upper separator 4 includes an upper visible box 41, an upper oil outlet pipe 5 is inserted into the upper visible box 41, the upper oil outlet pipe 5 is located inside the upper visible box 41 and is a flexible and retractable structure, an upper connecting rod 42 is movably inserted into the upper visible box 41, one end of the upper connecting rod 42 is installed at the end of the upper oil outlet pipe 5 located inside the upper visible box 41, and an upper cylinder 43 is installed at the end of the upper connecting rod 42 located outside the upper visible box 41, and an upper connecting frame 44 is installed between the upper cylinder 43 and the upper visible box 41;

[0028] It should be noted that the upper visual box 41 is made of transparent glass. First, the upper liquid outlet valve 2 is opened, and the water and tar mixture enters the upper visual box 41 through the upper liquid outlet valve 2. After standing, it is separated into layers. The operator controls the upper cylinder 43 to extend and retract, so that the upper connecting rod 42 drives one end of the upper oil outlet pipe 5 to rise and fall, so that one end of the upper oil outlet pipe 5 is located at the boundary between water and tar. The tar enters the oil storage tank 6 through the upper oil outlet pipe 5. Then the upper water outlet valve 7 is opened, and the remaining water in the upper visual box 41 enters the water tank 8. The water in the water tank 8 is used to spray and clean the spray tower 1 again, saving resources.

[0029] Specifically, a bottom separator 10 is installed at one end of the bottom liquid outlet valve 3, a bottom water outlet pipe 11 is installed at the upper end of the bottom separator 10, and the bottom water outlet pipe 11 is connected to the water tank 8, and an oil outlet valve is installed at the lower end of the bottom separator 10, and the oil outlet valve is connected to the oil storage tank 6;

[0030] Specifically, the bottom separator 10 includes a bottom visible box 101, a bottom water outlet pipe 11 is inserted into the bottom visible box 101, the bottom water outlet pipe 11 is located inside the bottom visible box 101 and is a flexible and retractable structure, a bottom connecting rod 102 is movably inserted into the bottom visible box 101, one end of the bottom connecting rod 102 is installed at the end of the bottom water outlet pipe 11 located inside the bottom visible box 101, and a bottom cylinder 103 is installed at the end of the bottom connecting rod 102 located outside the bottom visible box 101, and a bottom connecting frame 104 is installed between the bottom cylinder 103 and the bottom visible box 101;

[0031] It should be noted that the lower visual box is made of transparent glass. The remaining water and the liquid tar with the highest density in the spray tower 1 are opened, and the layer outlet valve is opened. The mixture of water and the liquid tar with the highest density enters the bottom visual box 101, and after standing, it is separated into layers. The operator controls the extension and contraction of the bottom cylinder 103, so that the bottom connecting rod 102 drives one end of the bottom water outlet pipe 11 to rise and fall, so that one end of the bottom water outlet pipe 11 is located at the boundary between water and liquid tar. Water enters the water tank 8 through the bottom water outlet pipe 11, and then the bottom oil outlet valve 12 is opened, and the remaining liquid tar in the bottom visual box 101 enters the oil storage tank 6.

[0032] As a preference, further, an upper oil pump 13 is installed on the upper oil outlet pipe 5 to provide power for collecting the tar with the lowest density;

[0033] As a preference, further, a bottom water pump 14 is installed on the bottom water outlet pipe 11 to provide power for collecting water in the lower visible box;

[0034] As a preference, further, a bottom oil pump 15 is installed between the oil outlet valve and the oil storage tank 6 to provide power for collecting the liquid tar with the highest density;

[0035] As a preference, further, a return water pump 16 is installed on the return pipe 9 to provide power for delivering water to the spray tower 1 in the water tank 8;

[0036] Preferably, further, an oil drain valve 17 is installed at the bottom end of the oil storage tank 6 to discharge the tar in the oil storage tank 6.

[0037] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A continuous graphitization furnace spray tower tar separation system, comprising a spray tower (1), characterized in that: An upper liquid outlet valve (2) is installed at the middle portion of the spray tower (1), and a bottom liquid outlet valve (3) is installed at the lower end of the spray tower (1); An upper layer separator (4) is installed at one end of the upper layer liquid outlet valve (2), an upper layer oil outlet pipe (5) is installed at the upper end of the upper layer separator (4), an oil storage tank (6) is installed at one end of the upper layer oil outlet pipe (5), an upper layer water outlet valve (7) is installed at the lower end of the upper layer separator (4), a water tank (8) is installed at one end of the upper layer water outlet valve (7), and a return pipe (9) is connected between the water tank (8) and the spray tower (1); A bottom separator (10) is installed at one end of the bottom liquid outlet valve (3); a bottom water outlet pipe (11) is installed at the upper end of the bottom separator (10); the bottom water outlet pipe (11) is communicated with the water tank (8); a bottom oil outlet valve (12) is installed at the lower end of the bottom separator (10); the bottom oil outlet valve (12) is communicated with the oil storage tank (6); The upper separator (4) comprises an upper visible box (41), the upper oil outlet pipe (5) is inserted into the upper visible box (41), the portion of the upper oil outlet pipe (5) located inside the upper visible box (41) is a flexible and retractable structure, an upper connecting rod (42) is movably inserted into the upper visible box (41), one end of the upper connecting rod (42) is installed at the end of the upper oil outlet pipe (5) located inside the upper visible box (41), an upper cylinder (43) is installed at the end of the upper connecting rod (42) located outside the upper visible box (41), and an upper connecting frame (44) is installed between the upper cylinder (43) and the upper visible box (41); The bottom separator (10) comprises a bottom visible box (101), the bottom water outlet pipe (11) is inserted into the bottom visible box (101), the bottom water outlet pipe (11) located inside the bottom visible box (101) is a flexible and retractable structure, a bottom connecting rod (102) is movably inserted into the bottom visible box (101), one end of the bottom connecting rod (102) is installed on the end of the bottom water outlet pipe (11) located inside the bottom visible box (101), a bottom cylinder (103) is installed on the end of the bottom connecting rod (102) located outside the bottom visible box (101), and a bottom connecting frame (104) is installed between the bottom cylinder (103) and the bottom visible box (101).

2. A continuous graphitization furnace spray tower tar separation system according to claim 1, characterized in that: An upper oil pump (13) is installed on the upper oil outlet pipe (5).

3. The continuous graphitization furnace spray tower tar separation system according to claim 1, characterized in that: A bottom layer water pump (14) is installed on the bottom layer water outlet pipe (11).

4. A continuous graphitization furnace spray tower tar separation system according to claim 1, characterized in that: A bottom layer oil pump (15) is installed between the bottom layer oil outlet valve (12) and the oil storage tank (6).

5. The continuous graphitization furnace spray tower tar separation system according to claim 1, characterized in that: A return water pump (16) is installed on the return pipe (9).

6. The continuous graphitization furnace spray tower tar separation system according to claim 1, characterized in that: An oil drain valve (17) is installed at the bottom end of the oil storage tank (6).

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