CN115975666A - A device for preventing pipeline clogging of mechanical slag scraping tank - Google Patents

Abstract

The invention belongs to the technical field of coking and gas-making equipment, and discloses a device for preventing pipeline clogging of a mechanical slag scraping tank, which includes a filter unit and a slag collection unit. The filter unit includes a filter tank, an input pipe and an output pipe. One end of the input pipe is connected to the filter tank, and the other end is configured to be connected to the discharge pipe of the mechanical scraper tank. One end of the output pipe is connected to the filter tank, and the other end is configured as It is connected with the tar residue pump, and the tar residue pump is connected with the mechanical scraping tank through the return pipe. The slag collection unit includes a tar slag hopper, a slag collection pipe and a slag discharge valve. The tar slag hopper is located under the filter tank. One end of the slag collection pipe is connected to the filter tank and the other end is connected to the tar slag hopper. pipe on. The filter unit can effectively filter the tar residue, and the residue collection unit can collect the tar residue, so that the discharge pipe of the mechanical scraping tank can always be kept unobstructed.

Description

A device for preventing pipeline clogging of mechanical slag scraping tank

technical field

The invention relates to the technical field of coking and gas-making equipment, in particular to a device for preventing pipeline clogging of a mechanical slag scraping tank.

Background technique

In order to separate tar oil and tar residue, the tar ammonia-water mixture from the gas-liquid separator first passes through the mechanical scraping tank of the tar residue separator to separate large-sized tar residue, and then passes through the rotary drum with sieve holes from the entrance of the tank. The drum flows to the middle of the separation tank by itself. Due to the failure of the mechanical scraping tank, maintenance, etc., it is necessary to empty the mechanical scraping tank, and the liquid and slag in the mechanical scraping tank are pumped by the tar residue pump to other mechanical scraping tanks for processing through the bottom slag discharge pipeline. .

However, the slag at the bottom of the machine head of the mechanical scraping tank cannot be scraped off by the scraper machine, resulting in a large amount of tar residue deposited at the bottom, and some tar residue particles are large and have extremely poor fluidity; There are some elbows in the pump pipeline, which is not conducive to the flow of tar residue, and it is easy to deposit in the local area at the lowest point of the pipeline, resulting in poor flow and blockage of the pipeline. Since the slag discharge pipeline of the mechanical slag scraping tank is closed, the only discharge method is through the tar slag pump. When the pipeline is clogged and silted up, the slag accumulated in the pipeline cannot be discharged smoothly, and the treatment is difficult.

Contents of the invention

The object of the present invention is to provide a device for preventing the clogging of the pipeline of the mechanical slag scraping tank, so as to avoid tar residue clogging and keep the pipeline unimpeded.

For reaching this purpose, the present invention adopts following technical scheme:

A device for preventing pipeline clogging of a mechanical slag scraper, comprising:

The filter unit includes a filter tank, an input pipe and an output pipe. One end of the input pipe is connected to the filter tank, and the other end is configured to be connected to the discharge pipe of the mechanical slag scraping tank. One end of the output pipe is connected to the The filter tank, the other end is configured to be connected to a tar residue pump, and the tar residue pump is connected to the mechanical scraping tank through a return pipe;

The slagging unit includes a tar slag hopper, a slagging pipe and a slagging valve, the tar slag hopper is located below the filter tank, one end of the slag collecting pipe is connected to the filter tank, and the other end is connected to the A tar slag hopper, the slag discharge valve is arranged on the slag collecting pipe.

Optionally, a steam unit is also included, the steam unit includes a steam generator and a steam pipe, one end of the steam pipe is connected to the steam generator, and the other end is connected to the discharge pipe.

Optionally, the steam unit further includes a steam valve disposed on the steam pipe.

Optionally, the inlet pipe and the outlet pipe are relatively located on two sides of the filter tank.

Optionally, the output pipe slopes upwards from the filter tank, and the input pipe slopes upwards from the filter tank.

Optionally, the diameter of the output pipe gradually decreases from the filter tank to the tar residue pump.

Optionally, one end of the input pipe connected to the filter tank is lower than one end of the output pipe connected to the filter tank.

Optionally, the filter unit further includes a conical filter screen, and the conical filter screen is arranged at an end of the output pipe away from the filter tank.

Optionally, the bottom of the filter tank is in an inverted cone shape.

Optionally, one end of the slag collection pipe is connected to the bottom of the filter tank, and the other end extends downward.

Beneficial effects of the present invention:

The device provided by the present invention prevents the clogging of the pipeline of the mechanical slag scraping tank. The tar and tar residue in the mechanical slag scraping tank enter the filter tank from the discharge pipe through the input pipe, the tar residue settles and accumulates in the filter tank, and the tar is output from the output pipe. to the tar residue pump, and return to the mechanical scraping tank; regularly open the slag discharge valve, and discharge the tar residue in the filter tank to the tar residue hopper through the slag collection pipe. The device provided by the present invention for preventing pipe blockage of the mechanical slag scraping tank, the tar and tar slag output from the discharge pipe of the mechanical slag scraping tank, the filter unit can effectively filter the tar slag, and the slag collecting unit can collect the tar slag, so that the machine The discharge pipe of the slag scraper can always be kept unobstructed.

Description of drawings

Fig. 1 is a structural schematic diagram of the device for preventing pipeline clogging of the mechanical slag scraping tank provided by the embodiment of the present invention in application;

Fig. 2 is a partial structural schematic diagram of a device for preventing pipe blockage of a mechanical slag scraping tank provided by an embodiment of the present invention.

In the figure: 100, mechanical scraping tank; 101, discharge pipe; 102, tar residue pump; 103, return pipe; 104, tar residue collection bucket;

1. Filtration unit; 11. Filter tank; 12. Input pipe; 13. Output pipe; 14. Conical filter screen;

2. Slagging unit; 21. Tar slag hopper; 22. Slagging pipe; 23. Slagging valve;

3. Steam unit; 31. Steam pipe; 32. Steam valve.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings but not all structures.

In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected" and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrated ; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be the internal communication of two components or the interaction relationship between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

In the present invention, unless otherwise clearly specified and limited, a first feature being "on" or "under" a second feature may include direct contact between the first and second features, and may also include the first and second features Not in direct contact but through another characteristic contact between them. Moreover, "above", "above" and "above" the first feature on the second feature include that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. "Below", "beneath" and "under" the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.

In the description of this embodiment, the terms "up", "down", "right", "left" and other orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operations. It is not intended to indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and operate in a particular orientation, and thus should not be construed as limiting the invention. In addition, the terms "first" and "second" are only used to distinguish in description, and have no special meaning.

Embodiment one

As shown in FIG. 1 and FIG. 2 , this embodiment provides a device for preventing pipeline clogging of a mechanical slag scraping tank, which includes a filtering unit 1 and a slag collecting unit 2 .

Continue referring to Fig. 1 and Fig. 2, filter unit 1 comprises filter pot 11, input pipe 12 and output pipe 13, and one end of input pipe 12 communicates with filter pot 11, and the other end is configured as discharge pipe 101 with mechanical scraping tank 100 One end of the output pipe 13 is connected to the filter tank 11 , and the other end is configured to be connected to the tar residue pump 102 , and the tar residue pump 102 is connected to the mechanical scraping tank 100 through the return pipe 103 . That is to say, the mixed solution of tar and tar residue flowing out from the discharge pipe 101 of the mechanical scraping tank 100 enters the filter tank 11 through the input pipe 12, and the tar residue settles and accumulates in the filter tank 11, and the tar is output from the output pipe 13. To the tar residue pump 102, and back to the mechanical scraping tank 100. By separating the tar residue into the filter tank 11 , it is avoided that the tar residue is deposited in the pipeline between the mechanical scraping tank 100 and the tar residue pump 102 , thereby causing blockage. In this embodiment, the diameter of the input pipe 12 is the same as that of the discharge pipe 101 . Exemplarily, they are all DN80. In this embodiment, the filter tank 11 is cylindrical with a diameter of DN200.

The slag collection unit 2 includes a tar slag hopper 21, a slag collection pipe 22 and a slag discharge valve 23. The tar slag hopper 21 is located below the filter tank 11. One end of the slag collection pipe 22 is connected to the filter tank 11, and the other end is connected to the tar slag hopper. 21. The slag discharge valve 23 is set on the slag collection pipe 22. That is to say, by regularly opening the slag discharge valve 23, the tar residue in the filter tank 11 is discharged into the tar residue hopper 21 through the slag collection pipe 22 under the action of gravity, so as to prevent the filter tank 11 from being full of tar residue and affecting the filtration. Effect. In this embodiment, the pipe diameter of the slag collecting pipe 22 is DN80.

Specifically, when the discharge pipe 101 of the mechanical slag scraping tank 100 outputs the mixed liquid of tar and tar residue, the slag discharge valve 23 is in a closed state, thereby preventing tar from entering the tar residue hopper 21, and simultaneously, the tar residue is discharged in the filter tank 11. Settling, and the fluidity of the tar is significantly better than that of the tar residue, it will flow back into the mechanical scraping tank 100 from the output pipe 13 through the tar residue pump 102 . When the discharge pipe 101 of the mechanical slag scraping tank 100 does not output the mixed liquid of tar and tar residue, the slag discharge valve 23 can be opened, and the tar residue deposited in the filter tank 11 can be discharged into the tar residue hopper 21 through the slag collection pipe 22 , to realize the cleaning of the filter tank 11, so as to be used again. In the device provided in this embodiment to prevent the clogging of the pipes of the mechanical scraping tank, the filter unit 1 can effectively filter the tar residue, and the slag collection unit 2 can collect the tar residue, so that the discharge pipe 101 of the mechanical scraping tank 100 can always maintain unobstructed.

As shown in Figure 1, optionally, the device for preventing the pipeline blockage of the mechanical slag scraping tank also includes a steam unit 3, the steam unit 3 includes a steam generator and a steam pipe 31, one end of the steam pipe 31 is connected to the steam generator, and the other One end is connected to the discharge pipe 101 . Purging the mechanical slag scraping tank 100 and its pipes with steam can improve the fluidity of the residual tar residue, facilitate discharge, and keep the mechanical slag scraping tank 100 unimpeded and clean. Specifically, after the tar slag in the filter tank 11 is discharged to the tar slag hopper 21 and before the slag discharge valve 23 is closed, the steam generator is started to purge the mechanical slag scraping tank 100 and its pipelines to make the residual tar and tar slag churning, wherein part of the residual tar slag is discharged to the tar slag hopper 21 through the filter unit 1, and the other part is scraped out by the slag scraper of the mechanical slag scraping tank 100 into the tar slag collecting hopper 104 to realize the mechanical cleaning of the slag scraping tank 100. Thoroughly clean. In this embodiment, the steam generator is a steam heat source machine commonly used in the prior art, which can provide steam with a temperature of 150° C. and a pressure of 0.3-0.4 MPa.

Continue referring to FIG. 1 , optionally, the steam unit 3 further includes a steam valve 32 disposed on the steam pipe 31 . The steam valve 32 is used to conduct or block the connection between the steam generator and the discharge pipe 101, so as to control the timing of steam purging the mechanical slag scraping tank 100. At the same time, the steam valve 32 can also prevent the tar in the discharge pipe 101 from Enter the steam generator through the steam pipe 31.

As shown in Figure 2, optionally, one end of the input pipe 12 connected to the filter tank 11 is lower than the end of the output pipe 13 connected to the filter tank 11, which not only facilitates the downward settlement of the tar residue in the filter tank 11, but also facilitates upward floating The tar flows out from the output pipe 13. In this embodiment, in the height direction of the filter tank 11 , the input pipe 12 is connected to the middle of the filter tank 11 , and the output pipe 13 is connected to the upper end of the filter tank 11 .

As shown in Figure 2, optionally, the input pipe 12 and the output pipe 13 are relatively located on both sides of the filter tank 11, so that a certain distance is obtained between the input pipe 12 and the output pipe 13, which is convenient for the tar residue and tar to flow. Gradually separated by gravity, the tar flows out from the output pipe 13, and the tar residue is deposited at the bottom of the filter tank 11.

As shown in FIG. 2 , optionally, the output pipe 13 is inclined upward from the filter tank 11 , and the input pipe 12 is inclined upward from the filter tank 11 . The mixture of tar and tar residue enters the filter tank 11 from top to bottom from the input pipe 12, and the gravity is conducive to the flow of the tar residue into the filter tank 11; the output pipe 13 is inclined from bottom to top, which is also conducive to the flow of tar residue under the effect of gravity. Flow out from output pipe 13, and tar residue is then difficult to flow out from output pipe 13.

As shown in FIG. 2 , optionally, the diameter of the output pipe 13 gradually decreases from the filter tank 11 to the direction of the tar residue pump 102 . The gradually reduced pipe diameter can filter the tar residue, preventing tar residue with large particle size from flowing out of the output pipe 13 and damaging the tar residue pump 102 . In this embodiment, the output pipe 13 is a reducing pipe from DN100 to DN80.

As shown in FIG. 2 , optionally, one end of the slag collection pipe 22 is connected to the bottom of the filter tank 11 , and the other end extends downward. The slag collecting pipe 22 extends downward, which is beneficial to the flow of tar slag and improves the efficiency of slag discharge.

Optionally, the bottom of the filter tank 11 is in an inverted cone shape. The inverted cone design provides the best guide for the flow of tar residue.

Embodiment two

This embodiment provides a device for preventing the clogging of the pipeline of the mechanical slag scraping tank, which is basically the same as the first embodiment, the difference is that the filter unit 1 also includes a conical filter screen 14, and the conical filter screen 14 is arranged on the output pipe 13 One end away from the canister 11. The filter cone intercepts the tar residue in the filter tank 11, which is conducive to the downward deposition of the tar residue. The conical filter screen 14 is made of stainless steel, which is durable and anti-corrosion.

Apparently, the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, rather than limiting the implementation of the present invention. Various obvious changes, readjustments, and substitutions will occur to those skilled in the art without departing from the scope of the present invention. It is not necessary and impossible to exhaustively list all the implementation manners here. All modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included within the protection scope of the claims of the present invention.

Claims (10)

1. An apparatus for preventing pipe plugging of a mechanical scum trough, comprising:

the filtering unit (1) comprises a filtering tank (11), an input pipe (12) and an output pipe (13), wherein one end of the input pipe (12) is communicated with the filtering tank (11), the other end of the input pipe is configured to be connected with a discharge pipe (101) of a mechanical slag scraping groove (100), one end of the output pipe (13) is communicated with the filtering tank (11), the other end of the output pipe is configured to be connected with a tar slag pump (102), and the tar slag pump (102) is connected with the mechanical slag scraping groove (100) through a return pipe (103);

receive sediment unit (2), including tar sediment fill (21), receipts sediment pipe (22) and slag discharge valve (23), tar sediment fill (21) are located filter tank (11)'s below, the one end of receiving sediment pipe (22) connect in filter tank (11), the other end connect in tar sediment fill (21), slag discharge valve (23) set up receive on sediment pipe (22).

2. The apparatus for preventing pipe clogging of a mechanical slag scraping groove according to claim 1, further comprising a steam unit (3), said steam unit (3) comprising a steam generator and a steam pipe (31), one end of said steam pipe (31) being connected to said steam generator and the other end being connected to said discharge pipe (101).

3. The device for preventing clogging of pipes of a mechanical scum trough according to claim 2, wherein the steam unit (3) further comprises a steam valve (32), the steam valve (32) being provided on the steam pipe (31).

4. Device for preventing the clogging of the pipes of mechanical scum troughs according to any of the claims 1 to 2, characterized in that the input pipe (12) and the output pipe (13) are located opposite to each other on both sides of the filter tank (11).

5. The device for preventing the pipe clogging of a mechanical scum trough according to any of the claims 1 to 2, wherein said outlet pipe (13) is inclined upward from said filter tank (11), and said inlet pipe (12) is inclined upward from said filter tank (11).

6. The device for preventing the pipeline of the mechanical scum trough from being blocked according to any one of claims 1 to 2, wherein the pipe diameter of the output pipe (13) is gradually reduced from the filter tank (11) to the tar residue pump (102).

7. The device for preventing the pipe blockage of a mechanical slag groove according to any one of claims 1-2, characterized in that the end of the input pipe (12) connected to the filter tank (11) is lower than the end of the output pipe (13) connected to the filter tank (11).

8. Device for preventing the clogging of the pipes of mechanical scum troughs according to any of the claims 1 to 2, characterized in that the filter unit (1) further comprises a conical screen (14), the conical screen (14) being arranged at the end of the outlet pipe (13) remote from the filter tank (11).

9. The device for preventing the pipe blockage of a mechanical slag scraping groove according to any one of claims 1-2, characterized in that the bottom of the filter tank (11) is in an inverted cone shape.

10. The device for preventing the pipe blockage of the mechanical slag scraping groove according to any one of claims 1-2, characterized in that one end of the slag collecting pipe (22) is connected to the bottom of the filter tank (11), and the other end extends downwards.

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