Slag scraping structure of tar and ammonia water separating tank

Abstract

The utility model belongs to the technical field of residue scraping of tar and ammonia water separating tanks, and particularly discloses a residue scraping structure of a tar and ammonia water separating tank, which comprises a tank body, a motor arranged at the top of the tank body, a rotating shaft arranged on the motor, one end of the rotating shaft rotatably penetrating through the tank body and connected with a bottom bearing of the tank body, a scraping plate arranged on the rotating shaft, and a strip-shaped through groove arranged at the bottom of the tank body. A deslagging bin is arranged at the bottom of the tank body, the strip-shaped through groove is communicated with the deslagging bin, the bottom of the deslagging bin is communicated with a deslagging pipe, and a sealing assembly used for opening and closing the strip-shaped through groove is arranged in the deslagging bin. The problems that according to an existing tar and ammonia water separation tank, tar residues and ammonia water crystals are accumulated at the bottom of the tank, so that a layering area in the tank becomes small, and the tar and ammonia water separation effect is poor are solved. Tar residues and ammonia water crystal substances accumulated at the bottom of the tank are cleaned to the residue discharging bin through rotation of the scraper, the phenomenon that a large amount of tar residues and ammonia water crystal substances are accumulated at the bottom of the tank is avoided, the layering area of tar, ammonia water and tar residues is enlarged, and the tar and ammonia water separation effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of slag scraping technology for tar-ammonia-water separators, and specifically to a slag scraping structure for tar-ammonia-water separators. Background Technology

[0002] In the coking process, the raw coal gas produced from the coke oven, after condensation and cooling, forms a mixed liquid containing tar, ammonia, and tar residue. This mixture is transported to a tar-ammonia separator, where, based on the density differences of its components, it gradually separates into layers under gravity. The least dense ammonia accumulates at the top, the middle layer is tar, and the densest tar residue settles at the bottom of the separator. The ammonia is discharged from one side of the separator near the top, while the tar is discharged from the other side near the bottom. This process yields relatively pure tar and ammonia for further processing and utilization.

[0003] However, during the use of existing tar-ammonia water separators, tar residue and ammonia water crystals accumulate in large quantities at the bottom of the tank, occupying the effective space inside the tank. This reduces the stratification area of ​​tar, ammonia water, and tar residue, resulting in poor tar-ammonia water separation performance. Utility Model Content

[0004] The purpose of this invention is to provide a slag scraping structure for a tar-ammonia water separator, in order to solve the problem that in existing tar-ammonia water separators, tar residue and ammonia water crystals accumulate at the bottom of the tank, resulting in a smaller stratification area inside the tank and thus poor tar-ammonia water separation effect.

[0005] To achieve the above objectives, the basic solution provided by this utility model is as follows: a tar-ammonia-water separator scraping structure, comprising a tank body, a motor mounted on the top of the tank body, a rotating shaft mounted on the motor, one end of the rotating shaft rotatably passing through the tank body and connected to a bearing at the bottom of the tank body, a scraper mounted on the rotating shaft, a strip-shaped through groove opened at the bottom of the tank body, a slag discharge chamber located at the bottom of the tank body, the strip-shaped through groove communicating with the slag discharge chamber, a slag discharge pipe communicating with the bottom of the slag discharge chamber, and a sealing component for opening and closing the strip-shaped through groove provided inside the slag discharge chamber.

[0006] The working principle of this utility model is as follows: a tar-ammonia water separator scraping structure, when it is necessary to clean tar residue and ammonia water crystals, firstly, the tar-ammonia water mixture is stopped from entering the tank, and at the same time, the tar and ammonia water in the tank are discharged. Then, the strip channel is opened through the sealing component, and then the motor is started. The motor drives the rotating shaft to rotate, and the rotating shaft drives the scraper to rotate in the tank. During the rotation of the scraper, the ammonia water crystals of the tar residue at the bottom of the tank are scraped towards the strip channel. The tar residue and ammonia water crystals fall into the slag discharge chamber through the strip channel. The tar residue and ammonia water crystals in the slag discharge chamber are discharged through the slag discharge pipe. After the slag discharge is completed, the strip channel is closed through the sealing component to complete one cleaning operation.

[0007] The beneficial effects of this invention are as follows: the rotation of the scraper can clean the tar residue and ammonia crystals accumulated at the bottom of the tank to the slag discharge chamber, preventing them from accumulating in large quantities at the bottom of the tank, expanding the stratification area of ​​tar, ammonia, and tar residue, and improving the tar-ammonia separation effect. At the same time, all components work together, with the motor driving the rotating shaft and scraper, and the sealing assembly controlling the opening and closing of the slag discharge channel. The structure is simple and practical.

[0008] Option 2, a preferred embodiment of the basic option, includes a sealing assembly comprising a sealing plate. A fixing block is located at the bottom of the tank near the strip-shaped channel. One end of the sealing plate is hinged to the fixing block. A rubber sealing plug and a sliding groove are respectively located at the top and bottom of the sealing plate. A slider is slidably connected to the sliding groove, and a connecting shaft is hinged to the slider. A cylinder is located at the bottom of the tank. The telescopic end of the cylinder rotates through the slag discharge bin and connects to the connecting shaft. The telescopic movement of the cylinder controls the slider to slide within the sliding groove, thereby causing the sealing plate to rotate around the fixing block, thus opening and closing the strip-shaped channel. The rubber sealing plug enhances the sealing effect and prevents liquid leakage from the tank.

[0009] Option 3, a preferred embodiment of Option 2, features a strip-shaped groove at the bottom of the tank near the strip-shaped through-slot, and a sealing ring on the sealing plate for embedding into the strip-shaped groove. The sealing ring is fitted with a sealing ring. The sealing ring is embedded into the strip-shaped groove, working in conjunction with the sealing ring to provide a secondary seal, further improving the sealing performance between the sealing plate and the tank and reducing the risk of liquid leakage from the tank.

[0010] Option 4, which is a preferred option of the basic option, is that the scraper is in the shape of a loop. The loop-shaped scraper can clean the side wall and bottom of the tank at the same time, and can scrape off the ammonia crystals on the side wall of the tank, thereby cleaning the tank more thoroughly and improving cleaning efficiency.

[0011] Option 5, which is a preferred option of the basic option, is that the scraper is provided with a flexible rubber scraper on the side near the tank; the flexible rubber scraper can better fit the inner wall of the tank, resulting in better cleaning effect, while also reducing the wear of the scraper on the inner wall of the tank and extending the service life of the tank.

[0012] Option 6, which is a preferred option of the basic option, is provided with a discharge valve at the connection between the slag discharge bin and the slag discharge pipe; the discharge valve can prevent blockage during the slag discharge process. Attached Figure Description

[0013] Figure 1 This is an exploded view of the slag scraping structure of a tar-ammonia water separator according to this utility model;

[0014] Figure 2 for Figure 1 Enlarged view of point B in the middle;

[0015] Figure 3 This is a front view of the slag scraping structure of a tar-ammonia water separator according to this utility model;

[0016] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0017] Figure 5 This is an exploded view of the slag scraping structure of a tar-ammonia water separator according to this utility model from another angle;

[0018] Figure 6 This is a cross-sectional view of the sealing plate in the slag scraping structure of a tar-ammonia-water separator according to this utility model. Detailed Implementation

[0019] The present invention will be further described in detail below through specific embodiments:

[0020] The reference numerals in the accompanying drawings of the instruction manual include: 1. Tank body; 2. Motor; 3. Rotating shaft; 4. Scraper; 5. Strip groove; 6. Slag discharge bin; 7. Slag discharge pipe; 8. Sealing plate; 9. Fixing block; 10. Rubber sealing plug; 11. Slide groove; 12. Sliding block; 13. Connecting shaft; 14. Cylinder; 15. Strip groove; 16. Sealing ring; 17. Sealing ring; 18. Flexible rubber scraper; 19. Discharge valve.

[0021] like Figures 1 to 6The diagram shows a tar-ammonia water separator scraping structure, comprising a tank body 1, a motor 2 mounted on the top of the tank body 1, a rotating shaft 3 fixedly connected to the motor 2, one end of the rotating shaft 3 rotatably passing through the tank body 1 and connected to a bearing at the bottom of the tank body 1, a scraper 4 bolted to the rotating shaft 3, the scraper 4 being U-shaped, a flexible rubber scraper 18 provided on the side of the scraper 4 near the tank body 1, the flexible rubber scraper 18 abutting against the bottom and side wall of the tank body 1, the flexible rubber scraper 18 being made of nitrile rubber, a strip-shaped through groove 5 opened at the bottom of the tank body 1, a slag discharge bin 6 provided at the bottom of the tank body 1, the slag discharge bin 6 being bucket-shaped, the strip-shaped through groove 5 communicating with the slag discharge bin 6, a slag discharge pipe 7 communicating with the bottom of the slag discharge bin 6, a discharge valve 19 provided at the connection between the slag discharge bin 6 and the slag discharge pipe 7, and a sealing assembly for opening and closing the strip-shaped through groove 5 provided inside the slag discharge bin 6. The tank includes a sealing plate 8, the length and width of which are greater than the length and width of the strip groove 5, and the length and width of the sealing plate 8 are less than the length and width of the top opening of the slag discharge bin 6. A fixing block 9 is welded to the bottom of the tank body 1 near the strip groove 5. One end of the sealing plate 8 is hinged to the fixing block 9. The top and bottom of the sealing plate 8 are respectively provided with a rubber sealing plug 10 and a sliding groove 11. A slider 12 is slidably connected to the sliding groove 11. A connecting shaft 13 is hinged to the slider 12. A cylinder 14 is provided at the bottom of the tank body 1. The telescopic end of the cylinder 14 rotates through the slag discharge bin 6 and is connected to the connecting shaft 13. A strip groove 15 is opened at the bottom of the tank body 1 near the strip groove 5. A sealing ring 16 is provided on the sealing plate 8 for embedding in the strip groove 15. A sealing ring 17 is provided on the sealing ring 16. The sealing ring 17 abuts against the bottom of the strip groove 15.

[0022] The implementation method of this embodiment is as follows: When it is necessary to clean tar residue and ammonia crystals, firstly, stop the tar-ammonia mixture from entering the tank 1, and at the same time, drain the tar and ammonia from the tank 1. Then, start the cylinder 14. The telescopic end of the cylinder 14 retracts and pulls the connecting shaft 13. The connecting shaft 13 drives the slider 12 to slide in the slide groove 11. The slider 12 pulls the sealing plate 8 to rotate counterclockwise around the fixed block 9. The rubber sealing plug 10 on the sealing plate 8 is pulled out from the strip groove 5. At the same time, the sealing ring 16 and the sealing ring 1 in the strip groove are also pulled out. 7 is also pulled out, and the cylinder 14 retracts until the sealing plate 8 rotates and abuts against the inner wall of the slag discharge bin 6. At this time, the strip channel 5 is opened, and then the motor 2 is started. The motor 2 drives the rotating shaft 3 to rotate, and the rotating shaft 3 drives the scraper 4 to rotate inside the tank 1. During the rotation of the scraper 4, the tar residue at the bottom of the tank 1 and the ammonia crystals on the side wall are scraped towards the strip channel 5. The tar residue and ammonia crystals fall into the slag discharge bin 6 through the strip channel 5. The tar residue and ammonia crystals in the slag discharge bin 6 are discharged through the unloading valve 19 and the slag discharge pipe 7.

[0023] After the slag is discharged, first turn off the motor 2, then start the cylinder 14. The telescopic end of the cylinder 14 extends and pushes the connecting shaft 13. The connecting shaft 13 drives the slider 12 to slide in the slide groove 11. The slider 12 pushes the sealing plate 8 to rotate clockwise around the fixed block 9. The rubber sealing plug 10 on the sealing plate 8 is inserted into the strip groove 5. At the same time, the sealing ring 16 and the sealing ring 17 are also inserted into the strip groove 15, thus completing one cleaning operation.

[0024] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A tar ammonia water separation tank slag scraping structure, characterized in that, The utility model provides a kind of slagging-off device, including tank body (1), the top of the tank body (1) is equipped with motor (2), the motor (2) is equipped with rotating shaft (3), one end of the rotating shaft (3) rotates and penetrates to the inside bearing connection with the bottom of tank body (1), the rotating shaft (3) is equipped with scraper (4), the bottom of the tank body (1) is opened strip-shaped through slot (5), the bottom of the tank body (1) is equipped with slagging-off bin (6), the strip-shaped through slot (5) is communicated with slagging-off bin (6), the bottom of the slagging-off bin (6) is communicated with slagging-off pipe (7), the slagging-off bin (6) is equipped with sealing assembly for opening and closing strip-shaped through slot (5) in.

2. The tar ammonia water separation tank slagging structure according to claim 1, characterized in that, The sealing assembly includes sealing plate (8), the bottom of the tank body (1) is equipped with fixed block (9) near strip-shaped through slot (5), one end of the sealing plate (8) is hinged with fixed block (9), the top and bottom of the sealing plate (8) are equipped with rubber sealing plug (10) and sliding groove (11) respectively, the sliding groove (11) is slidably connected with sliding block (12), the sliding block (12) is hinged with connecting shaft (13), the bottom of the tank body (1) is equipped with air cylinder (14), the telescopic end of the air cylinder (14) is rotatably penetrated with connecting shaft (13) and is connected.

3. The tar-ammonia separation tank slagging structure according to claim 2, characterized in that, The bottom of the tank body (1) is equipped with strip-shaped recess (15) near strip-shaped through slot (5), the sealing ring (16) for embedding strip-shaped recess (15) is equipped on the sealing plate (8), the sealing ring (16) is equipped with sealing ring (17).

4. The tar-ammonia separation tank slagging structure according to claim 1, characterized in that, The scraper (4) is meandered.

5. The tar-ammonia separation tank slagging structure according to claim 1, characterized in that, The scraper (4) is equipped with flexible rubber scraping piece (18) near one side of the tank body (1).

6. The tar ammonia separation tank slagging structure according to claim 1, characterized in that, The connecting place of the slagging-off bin (6) and slagging-off pipe (7) is equipped with discharge valve (19).

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