Desulfurization wastewater evaporation device

Abstract

The invention belongs to the field of desulfurization wastewater evaporation, and particularly discloses a desulfurization wastewater evaporation device which comprises a desulfurization wastewater storage tank, a desulfurization wastewater quantitative feeding mechanism and an evaporation crystallization device. Aiming at the problem that evaporation is not thorough when a large amount of desulfurization wastewater is evaporated, a quantitative feeding, atomizing and mixing evaporation mode is adopted, the technical effect of large-area quantitative evaporation and crystallization is achieved, and the evaporation quality and efficiency are effectively improved; according to the condition that the filter cloth is easy to be blocked by crystal substances attached to the filter cloth during evaporation and filtration of the desulfurization wastewater, the dual technical effects of filter cloth replacement and crystal collection are realized by adopting a manner of combining rolling replacement and contact scraping.

Description

Technical Field

[0001] The invention belongs to the technical field of desulfurization wastewater evaporation, and specifically refers to a desulfurization wastewater evaporation device. Background Art

[0002] Desulfurization wastewater mainly refers to the wastewater discharged during the limestone-gypsum wet desulfurization process in thermal power plants. The wastewater contains pollutants such as suspended matter, supersaturated sulfites, sulfates, and heavy metals. Generally, the wastewater needs to be evaporated. When the desulfurization wastewater is evaporated, the water is evaporated and the suspended matter in the desulfurization wastewater is separated by high-temperature hot air. The evaporated water vapor is recovered after filtration and condensation, and the evaporated crystals are collected and processed separately. In the prior art, when evaporating the desulfurization wastewater, the quantitative evaporation of the desulfurization wastewater cannot be guaranteed, and there is a problem of incomplete evaporation. When filtering the evaporated water vapor, the filter cloth is easily attached with crystals, causing blockage, which affects the filtration and recovery of steam. Summary of the invention

[0003] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a desulfurization wastewater evaporation device. In view of the problem of incomplete evaporation of desulfurization wastewater when a large amount of desulfurization wastewater is evaporated, a quantitative feeding atomization mixed evaporation method is adopted to achieve the technical effect of large-area quantitative evaporation and crystallization, and effectively improve the quality and efficiency of evaporation; according to the situation that the filter cloth is easily clogged by crystals when the desulfurization wastewater is evaporated and filtered, a combination of winding and replacement and contact scraping is adopted to achieve the dual technical effects of filter cloth replacement and crystal collection.

[0004] The technical solution adopted by the present invention is as follows: The present invention provides a desulfurization wastewater evaporation device, including a desulfurization wastewater storage tank, a desulfurization wastewater quantitative feeding mechanism and an evaporation crystallization device, wherein the desulfurization wastewater quantitative feeding mechanism is connected to the desulfurization wastewater storage tank, the evaporation crystallization device is connected to the desulfurization wastewater quantitative feeding mechanism, and the desulfurization wastewater quantitative feeding mechanism is arranged between the desulfurization wastewater storage tank and the evaporation crystallization device; the desulfurization wastewater quantitative feeding mechanism includes a feeding box, a liquid cavity, an air cavity, a diaphragm, an active cavity, a quantitative liquid inlet component, a quantitative liquid outlet component and a driving member, the liquid cavity is arranged in the feeding box, the air cavity is arranged in the feeding box, the active cavity is arranged between the liquid cavity and the air cavity, the diaphragm is movably arranged in the active cavity, the diaphragm is used to block liquid and gas, the quantitative liquid outlet component is connected to the bottom end of the liquid cavity, the quantitative liquid outlet component is connected to the upper end of the liquid cavity, the driving member is arranged on the upper wall of the feeding box, and the driving member is connected to the air cavity in a sealed manner.

[0005] Furthermore, the active cavity is spindle-shaped, and liquid holes and air holes are respectively provided on two opposite walls of the active cavity.

[0006] Preferably, the quantitative liquid inlet assembly includes a liquid inlet connecting pipe, a liquid inlet control pipe, a liquid inlet control component, and a liquid inlet connecting pipe. The liquid inlet connecting pipe is connected to the liquid cavity, the liquid inlet control pipe is connected to the liquid inlet connecting pipe, the liquid inlet control component is arranged in the liquid inlet control pipe, one end of the liquid inlet connecting pipe is connected to the liquid inlet control pipe, and the other end of the liquid inlet connecting pipe is connected to the desulfurization wastewater storage tank.

[0007] Furthermore, the liquid inlet control component includes a liquid inlet control spring, a liquid inlet control ball and a liquid inlet limit enclosure. The liquid inlet limit enclosure is arranged in the liquid inlet control pipe. The liquid inlet limit enclosure is arranged at the connection between the liquid inlet control pipe and the liquid inlet connecting pipe. The liquid inlet control ball is movably arranged in the liquid inlet control pipe. The liquid inlet control ball forms a reliable seal under the action of the liquid inlet limit enclosure, so as to block the liquid inlet control pipe.

[0008] Among them, the liquid quantitative liquid discharge component includes a liquid discharge connecting pipe, a liquid discharge control pipe, a liquid discharge control component, and a liquid discharge connecting pipe. The liquid discharge connecting pipe is connected to the liquid cavity, the liquid discharge control pipe is connected to the liquid discharge connecting pipe, and the liquid discharge control component is arranged in the liquid discharge control pipe. One end of the liquid discharge connecting pipe is connected to the liquid discharge control pipe, and the other end of the liquid discharge connecting pipe is connected to the evaporation crystallization device.

[0009] Furthermore, the liquid outlet control component includes a liquid outlet control spring, a liquid outlet control ball and a liquid outlet limit enclosure. The liquid outlet limit enclosure is arranged in the liquid outlet control pipe. The liquid outlet limit enclosure is arranged at the connection between the liquid outlet control pipe and the liquid outlet connecting pipe. The liquid outlet control ball is movably arranged in the liquid outlet control pipe. The liquid outlet control ball forms a reliable seal under the action of the liquid outlet limit enclosure, so as to block the liquid outlet control pipe.

[0010] As a further preferred embodiment of the present invention, the driving member includes a fixed plate frame and an electric telescopic pressure column, the fixed plate frame is arranged on the upper wall of the feed box, the electric telescopic pressure column is arranged on the fixed plate frame, and the electric telescopic pressure column is sealed and telescopically arranged in the air cavity.

[0011] Furthermore, the evaporation crystallization device includes an evaporation crystallization generating box, an evaporation filtration crystallization recollection structure, a crystallization collection box, an atomization pump, a condenser and a filtered water collection box, the evaporation filtration crystallization recollection structure is arranged in the evaporation crystallization generating box, the crystallization collection box is movably arranged on the inner bottom wall of the evaporation crystallization generating box, the atomization pump is arranged on the outer upper wall of the evaporation crystallization generating box, one end of the atomization pump is connected to the liquid outlet connecting pipe, and the other end of the atomization pump is connected to the evaporation crystallization generating box, the filtered water collection box is arranged on the side wall of the evaporation crystallization generating box, the condenser is arranged on the outer side wall of the evaporation crystallization generating box, one end of the condenser is connected to the evaporation crystallization generating box, and the other end of the condenser is connected to the filtered water collection box, and a steam connecting pipe is arranged on one side wall of the evaporation crystallization generating box.

[0012] Among them, the evaporation filtration crystallization and recollection structure includes a filter cloth roller, a filter frame, a guide column, a filter cloth replacement roller and an elastic contact-type crystallization scraper, the filter cloth roller is arranged on the upper wall of the outer side of the evaporation crystallization generating box, the filter frame is arranged on the side wall of the evaporation crystallization generating box, the guide column is rotatably arranged in the filter frame, the filter cloth replacement roller is arranged in the evaporation crystallization generating box, the elastic contact-type crystallization scraper is arranged in the evaporation crystallization generating box, the filter cloth on the filter cloth roller passes through the evaporation crystallization generating box, the filter frame and the guide column and is connected to the filter cloth replacement roller, a replacement motor is arranged on the outer side wall of the evaporation crystallization generating box, and the output end of the replacement motor is connected to the filter cloth replacement roller.

[0013] Furthermore, the elastic contact-type crystallization scraper includes a contact scraper head, a supporting guide plate, an adaptive spring and a fixed bottom plate, the fixed bottom plate is arranged on the inner wall of the evaporation crystallization box, one end of the adaptive spring is arranged on the fixed bottom plate, the supporting guide plate is connected to the other end of the adaptive spring, the contact scraper head is arranged on the supporting guide plate, and the contact scraper head contacts the filter cloth after filtration.

[0014] The beneficial effects achieved by the present invention using the above structure are as follows: This scheme provides a desulfurization wastewater evaporation device. In order to solve the problem of incomplete evaporation of desulfurization wastewater when evaporating in large quantities, a quantitative feeding atomization mixed evaporation method is adopted to achieve the technical effect of large-area quantitative evaporation and crystallization, and effectively improve the quality and efficiency of evaporation; according to the situation that the filter cloth is easily clogged by crystals when evaporating and filtering the desulfurization wastewater, a combination of winding and replacement and contact scraping is adopted to achieve the dual technical effects of filter cloth replacement and crystal collection. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a desulfurization wastewater evaporation device proposed by the present invention; Figure 2 This is a left view of a desulfurization wastewater evaporation device proposed by the present invention; Figure 3 This is a front view of a desulfurization wastewater evaporation device proposed by the present invention; Figure 4 This is a right view of a desulfurization wastewater evaporation device proposed by the present invention; Figure 5 A top view of a desulfurization wastewater evaporation device proposed by the present invention; Figure 6 A bottom view of a desulfurization wastewater evaporation device proposed by the present invention; Figure 7 It is a structural schematic diagram of the quantitative feeding mechanism of desulfurization wastewater; Figure 8 It is a cross-sectional view of the quantitative feeding mechanism of desulfurization wastewater; Fig. 9 It is a structural schematic diagram of an evaporation crystallization device; Fig.10 It is a cross-sectional view of the evaporation crystallization device.

[0016] Among them, 1. desulfurization wastewater storage tank, 2. desulfurization wastewater quantitative feeding mechanism, 3. evaporation crystallization device, 4. feeding box, 5. liquid cavity, 6. air cavity, 7. diaphragm, 8. movable cavity, 9. quantitative liquid inlet component, 10. quantitative liquid outlet component, 11. driving part, 12. liquid hole, 13. air hole, 14. liquid inlet connecting pipe, 15. liquid inlet control pipe, 16. liquid inlet control part, 17. liquid inlet connecting pipe, 18. liquid inlet control spring, 19. liquid inlet control ball, 20. liquid inlet limit enclosure, 21. liquid outlet connecting pipe, 22. liquid outlet control pipe, 23. liquid outlet control part, 24. liquid outlet connecting pipe, 2 5. Liquid discharge control spring, 26. Liquid discharge control ball, 27. Liquid discharge limit enclosure, 28. Fixed plate frame, 29. Electric telescopic pressure column, 30. Evaporation crystallization generating box, 31. Evaporation filtration crystallization and recollection structure, 32. Crystallization collection box, 33. Atomizing pump, 34. Condenser, 35. Filtered water collection box, 36. Steam connecting pipe, 37. Filter cloth roller, 38. Filter frame, 39. Guide column, 40. Filter cloth replacement roller, 41. Elastic contact type crystallization scraper, 42. Replacement motor, 43. Contact scraper head, 44. Support guide plate, 45. Adaptive spring, 46. Fixed bottom plate.

[0017] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0019] In the description of the present invention, it should be understood that terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside” indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0020] like Figure 1 , Figure 4 , Figure 6 As shown, the present invention provides a desulfurization wastewater evaporation device, including a desulfurization wastewater storage tank 1, a desulfurization wastewater quantitative feeding mechanism 2 and an evaporation crystallization device 3, the desulfurization wastewater quantitative feeding mechanism 2 is connected to the desulfurization wastewater storage tank 1, the evaporation crystallization device 3 is connected to the desulfurization wastewater quantitative feeding mechanism 2, and the desulfurization wastewater quantitative feeding mechanism 2 is arranged between the desulfurization wastewater storage tank 1 and the evaporation crystallization device 3.

[0021] like Figure 1 , Figure 2 , Figure 3 , Figure 7 , Figure 8As shown, the quantitative feeding mechanism 2 for desulfurized wastewater includes a feeding box 4, a liquid cavity 5, an air cavity 6, a diaphragm 7, an active cavity 8, a quantitative liquid inlet component 9, a quantitative liquid outlet component 10 and a driving member 11. The liquid cavity 5 is arranged in the feeding box 4, the air cavity 6 is arranged in the feeding box 4, the active cavity 8 is arranged between the liquid cavity 5 and the air cavity 6, the diaphragm 7 is movably arranged in the active cavity 8, the diaphragm 7 is used to block liquid and gas, the quantitative liquid outlet component 10 is connected to the bottom end of the liquid cavity 5, the quantitative liquid outlet component 10 is connected to the upper end of the liquid cavity 5, the driving member 11 is arranged on the upper wall of the feeding box 4, and the driving member 11 is connected to the air cavity 6 in a sealed manner; the active cavity 8 is spindle-shaped, and the two opposite walls of the active cavity 8 are The quantitative liquid inlet assembly 9 includes a liquid inlet connecting pipe 14, a liquid inlet control pipe 15, a liquid inlet control member 16, and a liquid inlet connecting pipe 17. The liquid inlet connecting pipe 14 is connected to the liquid cavity 5, the liquid inlet control pipe 15 is connected to the liquid inlet connecting pipe 14, the liquid inlet control member 16 is arranged in the liquid inlet control pipe 15, one end of the liquid inlet connecting pipe 17 is connected to the liquid inlet control pipe 15, and the other end of the liquid inlet connecting pipe 17 is connected to the desulfurization wastewater storage tank 1; the liquid inlet control member 16 includes a liquid inlet control spring 18, a liquid inlet control ball 19 and a liquid inlet limit enclosure 20. The liquid inlet limit enclosure 20 is arranged in the liquid inlet control pipe 15. The limit enclosure 20 is arranged at the connection between the liquid inlet control pipe 15 and the liquid inlet connecting pipe 14, and the liquid inlet control ball 19 is movably arranged in the liquid inlet control pipe 15. The liquid inlet control ball 19 forms a reliable seal under the action of the liquid inlet limit enclosure 20; the liquid quantitative liquid outlet assembly 10 includes a liquid outlet connecting pipe 21, a liquid outlet control pipe 22, a liquid outlet control member 23, and a liquid outlet connecting pipe 24. The liquid outlet connecting pipe 21 is connected to the liquid cavity 5, the liquid outlet control pipe 22 is connected to the liquid outlet connecting pipe 21, the liquid outlet control member 23 is arranged in the liquid outlet control pipe 22, one end of the liquid outlet connecting pipe 24 is connected to the liquid outlet control pipe 22, and the other end of the liquid outlet connecting pipe 24 is connected to the evaporation crystallization device 3 The liquid outlet control component 23 includes a liquid outlet control spring 25, a liquid outlet control ball 26 and a liquid outlet limit enclosure 27. The liquid outlet limit enclosure 27 is arranged in the liquid outlet control pipe 22. The liquid outlet limit enclosure 27 is arranged at the connection between the liquid outlet control pipe 22 and the liquid outlet connecting pipe 21. The liquid outlet control ball 26 is movably arranged in the liquid outlet control pipe 22. The liquid outlet control ball 26 forms a reliable seal under the action of the liquid outlet limit enclosure 27. The driving component 11 includes a fixed plate frame 28 and an electric telescopic pressure column 29. The fixed plate frame 28 is arranged on the upper wall of the feed box 4, and the electric telescopic pressure column 29 is arranged on the fixed plate frame 28. The electric telescopic pressure column 29 is sealed and telescopically arranged in the air cavity 6.

[0022] like Figure 1 , Figure 4 , Figure 5 , Fig. 9 , Fig.10As shown, the evaporation crystallization device 3 includes an evaporation crystallization box 30, an evaporation filtration crystallization recollection structure 31, a crystallization collection box 32, an atomization pump 33, a condenser 34 and a filtered water collection box 35. The evaporation filtration crystallization recollection structure 31 is arranged in the evaporation crystallization box 30, the crystallization collection box 32 is movably arranged on the inner bottom wall of the evaporation crystallization box 30, the atomization pump 33 is arranged on the outer upper wall of the evaporation crystallization box 30, one end of the atomization pump 33 is connected to the liquid outlet connecting pipe 24, and the other end of the atomization pump 33 is connected to the evaporation crystallization box 30. The crystallization box 30 is connected through, the filtered water collection box 35 is arranged on the side wall of the evaporation crystallization box 30, the condenser 34 is arranged on the outer side wall of the evaporation crystallization box 30, one end of the condenser 34 is connected through and through with the evaporation crystallization box 30, and the other end of the condenser 34 is connected through and through with the filtered water collection box 35, and a steam connecting pipe 36 is arranged on one side wall of the evaporation crystallization box 30; the evaporation filtration crystallization recollection structure 31 includes a filter cloth roller 37, a filter frame 38, a guide column 39, a filter cloth replacement roller 40 and an elastic contact The filter cloth roller 37 is arranged on the upper wall of the outer side of the evaporation crystallization box 30, the filter frame 38 is arranged on the side wall of the evaporation crystallization box 30, the guide column 39 is rotatably arranged in the filter frame 38, the filter cloth replacement roller 40 is arranged in the evaporation crystallization box 30, the elastic contact type crystallization scraper 41 is arranged in the evaporation crystallization box 30, the filter cloth on the filter cloth roller 37 passes through the evaporation crystallization box 30, the filter frame 38 and the guide column 39 are connected with the filter cloth replacement roller 40, and the outer wall of the evaporation crystallization box 30 is arranged There is a replacement motor 42, and the output end of the replacement motor 42 is connected to the filter cloth replacement roller 40; the elastic contact crystallization scraper 41 includes a contact scraper head 43, a support guide plate 44, an adaptive spring 45 and a fixed bottom plate 46, the fixed bottom plate 46 is arranged on the inner wall of the evaporation crystallization box 30, one end of the adaptive spring 45 is arranged on the fixed bottom plate 46, the support guide plate 44 is connected to the other end of the adaptive spring 45, the contact scraper head 43 is arranged on the support guide plate 44, and the contact scraper head 43 contacts the filtered filter cloth.

[0023] When in use, the desulfurized wastewater is introduced into the desulfurized wastewater storage tank 1, the external steam source is connected to the steam connecting pipe 36, the electric telescopic pressurizing column 29 is started, and the electric telescopic pressurizing column 29 is extended to squeeze the gas in the air cavity 6. When the electric telescopic pressurizing column 29 moves upward, the gas in the air cavity 6 is sucked, and the diaphragm 7 bends in the direction close to the pore 13, and then the desulfurized wastewater in the desulfurized wastewater storage tank 1 is quantitatively sucked into the liquid inlet control pipe 15 through the liquid inlet connecting pipe 17, and then sucked into the liquid inlet connecting pipe 1 4, flows into the liquid chamber 5. At this time, the liquid inlet control ball 19 moves up, and the liquid inlet control spring 18 contracts. When the electric telescopic pressurizing column 29 contracts downward, the gas in the air chamber 6 is pressed into the active chamber 8 through the air hole 13, squeezing the diaphragm 7. The diaphragm 7 is pressed to bend toward the direction close to the liquid chamber 5, and then the desulfurized wastewater in the liquid chamber 5 is pressed into the liquid outlet connecting pipe 21. At this time, the liquid outlet control ball 26 moves up, the liquid outlet control spring 25 contracts, and the liquid outlet connecting pipe 21 opens, so that the desulfurized wastewater quantitatively flows into the atomizing pump 33, and the atomizer pump 33 is sprayed. The chemical pump 33 atomizes the desulfurization wastewater and sprays it into the evaporation and crystallization box 30, where it is mixed with the steam introduced into the evaporation and crystallization box 30 to achieve the technical effect of quantitative evaporation and crystallization of the desulfurization wastewater. The quantitative mixed evaporation method is adopted to further enhance the evaporation quality of the desulfurization wastewater. The evaporated water vapor is filtered through the filter cloth and enters the condenser 34. After condensation by the condenser 34, it is collected into the filtered water collection box 35 for recycling. The evaporated crystallized material falls into the crystallization collection box 32 for collection. After long-term filtration, the filter cloth will adhere to crystals, causing blockage. The replacement motor 42 is started, and the replacement motor 42 rotates to drive the filter cloth replacement roller 40 to rotate. The filter cloth replacement roller 40 rotates to roll up the used filter cloth to complete the replacement of the filter cloth. While the filter cloth is rolled up, the crystals attached to the filter cloth can be scraped off under the action of the contact scraping head 43. The scraped crystals fall into the crystallization collection box 32 along the support guide plate 44. The above is the specific working process of the present invention. Repeat this step when using it next time.

[0024] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0025] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the foregoing and their equivalents.

[0026] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A desulfurization wastewater evaporation device, characterized in that: The invention comprises a desulfurized wastewater storage tank (1), a desulfurized wastewater quantitative feeding mechanism (2) and an evaporation crystallization device (3), wherein the desulfurized wastewater quantitative feeding mechanism (2) is connected to the desulfurized wastewater storage tank (1), the evaporation crystallization device (3) is connected to the desulfurized wastewater quantitative feeding mechanism (2), and the desulfurized wastewater quantitative feeding mechanism (2) is arranged between the desulfurized wastewater storage tank (1) and the evaporation crystallization device (3); the desulfurized wastewater quantitative feeding mechanism (2) comprises a feeding box (4), a liquid cavity (5), an air cavity (6), a diaphragm (7), an active cavity (8), a quantitative liquid feeding component ( 9), a quantitative liquid outlet component (10) and a driving member (11), wherein the liquid chamber (5) is arranged in the feed box (4), the air chamber (6) is arranged in the feed box (4), the movable chamber (8) is arranged between the liquid chamber (5) and the air chamber (6), the diaphragm (7) is movably arranged in the movable chamber (8), the quantitative liquid outlet component (10) is connected to the bottom end of the liquid chamber (5), the quantitative liquid outlet component (10) is connected to the upper end of the liquid chamber (5), the driving member (11) is arranged on the upper wall of the feed box (4), and the driving member (11) is connected to the air chamber (6) in a sealed manner.

2. A desulfurization wastewater evaporation device according to claim 1, characterized in that: The active chamber (8) is spindle-shaped, and two opposite walls of the active chamber (8) are respectively provided with a liquid hole (12) and an air hole (13).

3. A desulfurization wastewater evaporation device according to claim 2, characterized in that: The quantitative liquid inlet assembly (9) comprises a liquid inlet connecting pipe (14), a liquid inlet control pipe (15), a liquid inlet control component (16), and a liquid inlet connecting pipe (17); the liquid inlet connecting pipe (14) is connected to the liquid chamber (5); the liquid inlet control pipe (15) is connected to the liquid inlet connecting pipe (14); the liquid inlet control component (16) is arranged in the liquid inlet control pipe (15); one end of the liquid inlet connecting pipe (17) is connected to the liquid inlet control pipe (15); and the other end of the liquid inlet connecting pipe (17) is connected to the desulfurization wastewater storage tank (1).

4. A desulfurization wastewater evaporation device according to claim 3, characterized in that: The liquid inlet control component (16) comprises a liquid inlet control spring (18), a liquid inlet control ball (19) and a liquid inlet limit enclosure (20); the liquid inlet limit enclosure (20) is arranged in the liquid inlet control pipe (15); the liquid inlet limit enclosure (20) is arranged at the connection between the liquid inlet control pipe (15) and the liquid inlet connecting pipe (14); and the liquid inlet control ball (19) is movably arranged in the liquid inlet control pipe (15).

5. A desulfurization wastewater evaporation device according to claim 4, characterized in that: The quantitative liquid discharge assembly (10) comprises a liquid discharge connecting pipe (21), a liquid discharge control pipe (22), a liquid discharge control element (23), and a liquid discharge connecting pipe (24); the liquid discharge connecting pipe (21) is connected to the liquid chamber (5); the liquid discharge control pipe (22) is connected to the liquid discharge connecting pipe (21); the liquid discharge control element (23) is arranged in the liquid discharge control pipe (22); one end of the liquid discharge connecting pipe (24) is connected to the liquid discharge control pipe (22); and the other end of the liquid discharge connecting pipe (24) is connected to the evaporation crystallization device (3).

6. A desulfurization wastewater evaporation device according to claim 5, characterized in that: The liquid outflow control member (23) comprises a liquid outflow control spring (25), a liquid outflow control ball (26) and a liquid outflow limit enclosure (27); the liquid outflow limit enclosure (27) is arranged in the liquid outflow control pipe (22); the liquid outflow limit enclosure (27) is arranged at the connection between the liquid outflow control pipe (22) and the liquid outflow connecting pipe (21); and the liquid outflow control ball (26) is movably arranged in the liquid outflow control pipe (22).

7. A desulfurization wastewater evaporation device according to claim 6, characterized in that: The driving member (11) comprises a fixed plate frame (28) and an electric telescopic pressurizing column (29); the fixed plate frame (28) is arranged on the upper wall of the feed box (4); the electric telescopic pressurizing column (29) is arranged on the fixed plate frame (28); and the electric telescopic pressurizing column (29) is sealed and telescopically arranged in the air cavity (6).

8. A desulfurization wastewater evaporation device according to claim 7, characterized in that: The evaporation crystallization device (3) comprises an evaporation crystallization generating box (30), an evaporation filtration crystallization recollection structure (31), a crystallization collection box (32), an atomization pump (33), a condenser (34) and a filtered water collection box (35), wherein the evaporation filtration crystallization recollection structure (31) is arranged in the evaporation crystallization generating box (30), the crystallization collection box (32) is movably arranged on the inner bottom wall of the evaporation crystallization generating box (30), the atomization pump (33) is arranged on the outer upper wall of the evaporation crystallization generating box (30), and one end of the atomization pump (33) is connected to a liquid outlet. The connecting pipe (24) is connected through and through, the other end of the atomizing pump (33) is connected through and through to the evaporation crystallization generating box (30), the filtered water collecting box (35) is arranged on the side wall of the evaporation crystallization generating box (30), the condenser (34) is arranged on the outer side wall of the evaporation crystallization generating box (30), one end of the condenser (34) is connected through and through to the evaporation crystallization generating box (30), the other end of the condenser (34) is connected through and through to the filtered water collecting box (35), and a steam connecting pipe (36) is arranged on one side wall of the evaporation crystallization generating box (30).

9. A desulfurization wastewater evaporation device according to claim 8, characterized in that: The evaporation, filtration, crystallization and recollection structure (31) comprises a filter cloth roller (37), a filter frame (38), a guide column (39), a filter cloth replacement roller (40) and an elastic contact type crystal scraper (41), wherein the filter cloth roller (37) is arranged on the outer upper wall of the evaporation crystallization generating box (30), the filter frame (38) is arranged on the side wall of the evaporation crystallization generating box (30), the guide column (39) is rotatably arranged in the filter frame (38), and the filter cloth replacement roller (40) The elastic contact type crystal scraper (41) is arranged in the evaporation crystallization box (30), the filter cloth on the filter cloth roller (37) passes through the evaporation crystallization box (30), the filter frame (38) and the guide column (39) and is connected to the filter cloth replacement roller (40), and a replacement motor (42) is arranged on the outer side wall of the evaporation crystallization box (30), and the output end of the replacement motor (42) is connected to the filter cloth replacement roller (40).

10. A desulfurization wastewater evaporation device according to claim 9, characterized in that: The elastic contact crystallization scraper (41) comprises a contact scraper head (43), a support guide plate (44), an adaptive spring (45) and a fixed bottom plate (46); the fixed bottom plate (46) is arranged on the inner wall of the evaporation crystallization generating box (30); one end of the adaptive spring (45) is arranged on the fixed bottom plate (46); the support guide plate (44) is connected to the other end of the adaptive spring (45); and the contact scraper head (43) is arranged on the support guide plate (44).

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