Production device for improving urine recovery concentration

Abstract

The utility model discloses a production device for improving urine recovery concentration, which relates to the technical field of urine recovery, and adopts the technical scheme that the production device comprises an underground tank, and a steam condensate pipe, a urea particle pipe and a urea dust pipe are sequentially arranged on the left side of the upper surface of the underground tank from left to right; a liquid level sensor is arranged in the underground tank close to the left side, two first extraction mechanisms are arranged on the upper surface of the underground tank corresponding to the liquid level sensor, liquid outlets of the first extraction mechanisms are communicated with a delivery pipe and a return pipe respectively, and a first control valve is arranged on the return pipe; diluted urine in the underground tank is conveyed to the washing tank, circularly absorbs dust of a granulation system in the washer, increases the concentration to about 45%, and then is conveyed to the urine tank for granulation, and the concentration of the diluted urine conveyed to the urine tank is increased, so that the fluctuation of evaporation temperature and negative pressure caused by the fluctuation of the urine concentration can be avoided; the operation cycle of a large particle system is indirectly prolonged, and meanwhile about 95 tons of 0.3 MPa steam can be saved every month.

Description

Technical Field

[0001] The utility model relates to the technical field of urine recovery, in particular to a production device for improving the concentration of recovered urine. Background Art

[0002] When the large particle system operates normally, there are two types of urea particles entering the underground tank: one type is larger particles or blocks (dust, adhered urea particles) preliminarily screened out by the safety vibrating screen, and the other type is larger particles of urea screened out by the flat rotary screen. Both are recovered and enter the underground tank for dissolution; the urea particles are dissolved in the large particle underground tank by adding steam condensate. When the liquid level rises to the upper limit of the indicator, the urine recovery pump in the underground tank is turned on to send the dilute urine to the urine tank for further evaporation and granulation.

[0003] In the existing technology, the urine concentration in the large-particle underground tank is sampled and analyzed, and the average concentration is 3.607% (the urine tank concentration is 69.46%). Since the concentration in the underground tank is low, the urine tank concentration is reduced after being pumped into the urine tank, causing fluctuations in the temperature and vacuum of the evaporation system. As the urea production load continues to increase, after the large-particle evaporation load increases, the evaporation temperature and evaporation vacuum cannot meet the normal operating indicators, causing large system fluctuations and increasing steam consumption in the evaporation system. Utility Model Content

[0004] The utility model provides a production device for improving the recovery concentration of urine, so as to solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a production device for improving the concentration of urine recovery, comprising an underground tank, wherein a steam condensate pipe, a urea granule pipe and a urea dust pipe are sequentially arranged on the left side of the upper surface of the underground tank from left to right, a liquid level sensor is arranged near the left side of the underground tank, and two first extraction mechanisms are arranged on the upper surface of the underground tank corresponding to the liquid level sensor, the liquid outlets of the first extraction mechanisms are respectively connected to the external delivery pipe and the return pipe, the return pipe is provided with a first control valve, the return pipe is connected to the underground tank through a first conduit, and the return pipes are connected to the first through a second conduit. A connecting pipe is connected, and a second control valve is provided on the second conduit. The liquid outlet port of the first connecting pipe is connected to the washing tank, and the liquid outlet of the washing tank is connected to two second extraction mechanisms through the second connecting pipe. A third connecting pipe is installed on the liquid outlet of the second extraction mechanism, and the third connecting pipe is connected to the washing tank and the washer respectively through the fourth connecting pipe. The third control valve is provided on the fourth connecting pipe. The liquid outlet of the washer is connected to the washing tank through the fifth connecting pipe. The third connecting pipe is connected to the external delivery pipe through the sixth connecting pipe, and the fourth control valve is provided on the sixth connecting pipe.

[0006] Furthermore, the first extraction mechanism includes a first delivery pump, a first water pipe and a fifth control valve. The liquid inlet and outlet of the first delivery pump are connected to the underground tank and the external delivery pipe and the return pipe through the first water pipe respectively. The fifth control valve is installed on the first water pipe.

[0007] Furthermore, a water filter is provided on each of the first water pipes near the underground tank.

[0008] Furthermore, the middle portion of the first connecting pipe is an inverted U-shaped structure, and is tilted downward on both sides.

[0009] Furthermore, the second extraction mechanism includes a second delivery pump, a second water pipe and a sixth control valve. The liquid inlet and outlet of the second delivery pump are respectively connected to the second connecting pipe and the third connecting pipe through the second water pipe. The second water pipe is provided with a seventh control valve, and the second water pipe is provided with a sixth control valve.

[0010] Furthermore, granulation dust pipes are provided on the left and right sides of the scrubber near the lower side.

[0011] Compared with the prior art, the present invention provides a production device for improving the concentration of recovered urine, which has the following beneficial effects:

[0012] 1. The production device for improving the concentration of recovered urine sends the large-particle dilute urine in the underground tank to the washing tank by setting a first extraction mechanism, and circulates the dust of the granulation system through the second extraction mechanism in the washer to increase the concentration of the dilute urine to about 45%, and then sends it to the urine tank for granulation. The increased concentration of the dilute urine in the urine tank can avoid fluctuations in evaporation temperature and negative pressure caused by fluctuations in urine concentration, indirectly extending the operation cycle of the large-particle system, and saving about 95 tons of 0.3MPa steam per month. At the same time, when the granulator of the large-particle system is cleaned and overhauled, the dilute urine cleaned out by the granulator can be sent to the washing tank, which reduces the rising speed of the urine tank and buys time for cleaning and overhaul.

[0013] 2. The production device for improving the recovered urine concentration prevents impurities in the underground tank from entering the urine tank by arranging a water filter in front of the first extraction mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the present utility model.

[0015] In the figure: 1. underground tank; 2. steam condensate pipe; 3. urea granule pipe; 4. urea dust pipe; 5. liquid level sensor; 6. first extraction mechanism; 601. first delivery pump; 602. first water pipe; 603. fifth control valve; 7. external delivery pipe; 8. return pipe; 9. first control valve; 10. first conduit; 11. second conduit; 12. first connecting pipe; 13. second control valve; 14. washing tank; 15. second connecting pipe; 16. second extraction mechanism; 161. second delivery pump; 162. second water pipe; 163. sixth control valve; 17. third connecting pipe; 18. fourth connecting pipe; 19. scrubber; 20. third control valve; 21. fifth connecting pipe; 22. sixth connecting pipe; 23. fourth control valve; 24. water filter; 25. granulation dust pipe. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] See also Figure 1 The utility model discloses a production device for improving the concentration of recovered urine, comprising an underground tank 1. A steam condensate pipe 2, a urea granule pipe 3 and a urea dust pipe 4 are sequentially arranged on the left side of the upper surface of the underground tank 1 from left to right. A liquid level sensor 5 is arranged near the left side of the underground tank 1. Two first extraction mechanisms 6 are arranged on the upper surface of the underground tank 1 corresponding to the liquid level sensor 5. The liquid outlets of the first extraction mechanisms 6 are respectively connected to the external delivery pipe 7 and the return pipe 8. A first control valve 9 is arranged on the return pipe 8. The return pipe 8 is connected to the underground tank 1 through a first conduit 10. The return pipe 8 is connected to the first connecting pipe 12 through a second conduit 11. The second conduit 11 is connected to the first connecting pipe 12. A second control valve 13 is provided. The liquid outlet port of the first connecting pipe 12 is connected to the washing tank 14. The liquid outlet of the washing tank 14 is connected to two second extraction mechanisms 16 through a second connecting pipe 15. A third connecting pipe 17 is installed on the liquid outlet of the second extraction mechanism 16. The third connecting pipe 17 is connected to the washing tank 14 and the washer 19 through a fourth connecting pipe 18 respectively. A third control valve 20 is provided on the fourth connecting pipe 18. The liquid outlet of the washer 19 is connected to the washing tank 14 through a fifth connecting pipe 21. The third connecting pipe 17 is connected to the external delivery pipe 7 through a sixth connecting pipe 22. The sixth connecting pipe 22 is provided with a fourth control valve 23.

[0018] Specifically, the first extraction mechanism 6 includes a first delivery pump 601, a first water pipe 602 and a fifth control valve 603. The liquid inlet and outlet of the first delivery pump 601 are respectively connected to the underground tank 1 and the external delivery pipe 7 and the return pipe 8 through the first water pipe 602. The fifth control valve 603 is installed on the first water pipe 602.

[0019] In this embodiment, the first delivery pump 601 can pump the dilute urine into the external delivery pipe 7 and the return pipe 8 through the first water pipe 602 .

[0020] Specifically, a water filter 24 is provided on each of the first water pipes 602 near the underground tank 1 .

[0021] In this embodiment, the water filter 24 filters the dilute urine entering the first water pipe 602 to prevent impurities from entering.

[0022] Specifically, the middle portion of the first connecting pipe 12 is an inverted U-shaped structure, and is tilted downward to both sides.

[0023] In this embodiment, the first connecting pipe 12 should have a slope when it is prepared, and the highest point is designed in the middle of the pipeline, so that the pipeline can be naturally emptied after the urine delivery stops, preventing urine from crystallizing in the pipe and clogging the pipe.

[0024] Specifically, the second extraction mechanism 16 includes a second delivery pump 161, a second water pipe 162 and a sixth control valve 163. The liquid inlet and outlet of the second delivery pump 161 are respectively connected to the second connecting pipe 15 and the third connecting pipe 17 through the second water pipe 162. A seventh control valve is provided on the second water pipe 162, and a sixth control valve 163 is provided on the second water pipe 162.

[0025] In this embodiment, the second delivery pump 161 can pump urine in the second connecting pipe 15 into the third connecting pipe 17 through the second water pipe 162 .

[0026] Specifically, granulation dust pipes 25 are provided on the left and right sides of the scrubber 19 near the lower side.

[0027] In this embodiment, the granulation dust pipe 25 allows the dust to enter the scrubber 19.

[0028] During use, the height of the dilute urine in the underground tank 1 is detected by the liquid level sensor 5. When the dilute urine in the underground tank 1 reaches a set height, the fifth control valve 603 in a certain first extraction mechanism 6 is opened, and the first delivery pump 601 draws the dilute urine into the return pipe 8 through the first water pipe 602, and then draws it into the first connecting pipe 12 through the second conduit 11 on the return pipe 8. The second control valve 13 on the second conduit 11 is opened, and the urine flows into the washing tank 14 through the first connecting pipe 12. Then the fifth control valve 603 and the second control valve 13 are closed, and then the sixth control valve 163 in a certain second extraction mechanism 16 is opened, so that the second delivery pump 161 draws the urine into the third connecting pipe 17 through the second water pipe 162, and then flows into the washer 19 through the third connecting pipe 17 and the fourth connecting pipe 18, and then flows into the washing tank 14 through the fifth connecting pipe 21, and the washing cycle is repeated. At this time, the third control valve 20 is open, which increases the dilute urine. After the concentration of urine is determined, the third control valve 20 is closed, the fourth control valve 23 on the sixth connecting pipe 22 is opened, and the second delivery pump 161 pumps the urine with increased concentration into the external delivery pipe 7 through the second water pipe 162. The urine with increased concentration flows into the urine tank, and the large-particle dilute urine in the underground tank 1 is sent to the washing tank 14. In the scrubber 19, the second extraction mechanism 16 circulates and absorbs the dust of the granulation system, and increases the concentration of the dilute urine to about 45%. This can avoid the fluctuation of evaporation temperature and negative pressure caused by fluctuation of urine concentration, indirectly extend the operation cycle of the large-particle system, and save about 95 tons of 0.3MPa steam per month. At the same time, when the granulator of the large-particle system is cleaned and overhauled, the dilute urine washed out by the granulator can be sent to the washing tank 14, which reduces the rising speed of the urine tank and buys time for cleaning and maintenance. The impurities in the underground tank 1 are prevented from entering the urine tank through the water filter 24 on the front side of the first extraction mechanism 6.

[0029] In summary, in the production device for improving the urine recovery concentration, the dilute urine in the underground tank 1 is sent to the washing tank 14, and the dust of the granulation system is circulated and absorbed in the scrubber 19 to increase the concentration to about 45%, and then sent to the urine tank for granulation. The concentration of the dilute urine in the urine tank is increased, which can avoid the fluctuation of evaporation temperature and negative pressure due to the fluctuation of urine concentration, indirectly extend the operation cycle of the large particle system, and save about 95 tons of 0.3MPa steam per month. After the transformation, a water filter 24 is added to the inlet of the first urine extraction mechanism 6 of the underground tank 1 to prevent impurities in the underground tank 1 from entering the urine tank. When the granulator of the large particle system is cleaned and overhauled, the dilute urine cleaned out by the granulator can be sent to the washing tank 14, which reduces the rising speed of the urine tank and buys time for cleaning and maintenance.

[0030] 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 production device for improving the concentration of recovered urine, comprising an underground tank (1), characterized in that: A steam condensate pipe (2), a urea granule pipe (3) and a urea dust pipe (4) are arranged in sequence from left to right on the left side of the upper surface of the underground tank (1). A liquid level sensor (5) is arranged near the left side of the underground tank (1). Two first extraction mechanisms (6) are arranged on the upper surface of the underground tank (1) corresponding to the liquid level sensor (5). The liquid outlets of the first extraction mechanisms (6) are respectively connected to the external delivery pipe (7) and the return pipe (8). The return pipe (8) is provided with a first control valve (9). The return pipe (8) is connected to the underground tank (1) through a first conduit (10). The return pipe (8) is connected to the first connecting pipe (12) through a second conduit (11). The second conduit (11) is provided with a second control valve (13). A liquid outlet port of a connecting pipe (12) is connected to a washing tank (14); the liquid outlet of the washing tank (14) is connected to two second extraction mechanisms (16) via a second connecting pipe (15); a third connecting pipe (17) is installed on the liquid outlet of the second extraction mechanism (16); the third connecting pipe (17) is connected to the washing tank (14) and the washer (19) via a fourth connecting pipe (18); a third control valve (20) is provided on the fourth connecting pipe (18); the liquid outlet of the washer (19) is connected to the washing tank (14) via a fifth connecting pipe (21); the third connecting pipe (17) is connected to an external delivery pipe (7) via a sixth connecting pipe (22); a fourth control valve (23) is provided on the sixth connecting pipe (22).

2. A production device for improving urine recovery concentration according to claim 1, characterized in that: The first extraction mechanism (6) comprises a first delivery pump (601), a first water pipe (602) and a fifth control valve (603); the liquid inlet and outlet of the first delivery pump (601) are respectively connected to the underground tank (1) and the external delivery pipe (7) and the return pipe (8) through the first water pipe (602); and the fifth control valve (603) is installed on the first water pipe (602).

3. A production device for improving urine recovery concentration according to claim 2, characterized in that: A water filter (24) is provided on the first water pipe (602) at a position close to the underground tank (1).

4. A production device for improving urine recovery concentration according to claim 1, characterized in that: The middle portion of the first connecting pipe (12) is an inverted U-shaped structure and is arranged to be inclined downward on both sides.

5. A production device for improving urine recovery concentration according to claim 1, characterized in that: The second extraction mechanism (16) comprises a second delivery pump (161), a second water pipe (162) and a sixth control valve (163); the liquid inlet and outlet of the second delivery pump (161) are respectively connected to the second connecting pipe (15) and the third connecting pipe (17) through the second water pipe (162); the second water pipe (162) is provided with a seventh control valve; and the second water pipe (162) is provided with a sixth control valve (163).

6. A production device for improving urine recovery concentration according to claim 1, characterized in that: Granulation dust pipes (25) are provided on both left and right sides of the scrubber (19) near the lower side.

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