CN111072085A

CN111072085A - Sewage treatment plant for environmental engineering

Info

Publication number: CN111072085A
Application number: CN201911301260.1A
Authority: CN
Inventors: 杨秀华; 王婷; 韩健宝; 彭兵
Original assignee: Nanjing Rbs Biotechnology Co ltd
Current assignee: Nanjing Rbs Biotechnology Co ltd
Priority date: 2019-12-17
Filing date: 2019-12-17
Publication date: 2020-04-28

Abstract

The invention discloses a sewage treatment device for environmental engineering, which comprises a base, wherein two upright columns are symmetrically and fixedly arranged at the top of the base, the top ends of the two upright columns are fixedly provided with a same evaporation box, one side, close to each other, of the two upright columns is connected with a same moving plate in a sliding manner, the top of the moving plate is fixedly provided with a sealing plate, the inner wall of the bottom of the evaporation box is fixedly provided with a sealing ring, the inner wall of the bottom of the evaporation box is provided with a moving hole, and the top of the sealing plate extends into the sealing ring and is in sealing fit with the inner wall of. The invention can heat water into gas by utilizing the principle of evaporation, realize the separation from silt and quickly cool steam to form liquid water under the action of condensation, so that the existing filtering equipment is not needed for filtering when in use, and the silt and the water can be thoroughly separated, thereby being very convenient to use.

Description

Sewage treatment plant for environmental engineering

Technical Field

The invention relates to the technical field related to industrial charging barrel hoisting, in particular to a sewage treatment device for environmental engineering.

Background

Sewage treatment, in order to make sewage reach the water quality requirement of a certain water body of drainage or reuse and carry out the process of purifying it, sewage treatment is widely used in each field such as building, agriculture, traffic, energy, petrochemical industry, environmental protection, urban landscape, medical treatment, food and beverage, also increasingly goes into common people's daily life.

At present, when sewage containing silt is treated, the sewage is often treated only by adopting a filtering mode, but the filtering plate is adopted as a filtering device at present, when water passes through the filtering plate, the filtering plate is often blocked, and the sewage is manually cleaned, so that the filtering efficiency is low, and the sewage treatment device for environmental engineering is provided for solving the problem.

Disclosure of Invention

The invention aims to provide a sewage treatment device for environmental engineering, which aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a sewage treatment device for environmental engineering comprises a base, wherein two upright columns are symmetrically and fixedly installed at the top of the base, the top ends of the two upright columns are fixedly installed with a same evaporation box, one side, close to each other, of the two upright columns is connected with a same moving plate in a sliding manner, a sealing plate is fixedly installed at the top of the moving plate, a sealing ring is fixedly installed on the inner wall of the bottom of the evaporation box, a moving hole is formed in the inner wall of the bottom of the evaporation box, the top of the sealing plate extends into the sealing ring and is in sealing fit with the inner wall of the sealing ring, a rotating shaft is rotatably connected onto the sealing plate, the bottom end of the rotating shaft extends to the lower side of the moving plate, a stirring mechanism is arranged on the rotating shaft, a conical pipe is fixedly installed on the inner wall of the evaporation box, the bottom end, the air suction device is characterized in that an air suction pipe is arranged on the air suction assembly, the bottom end of the air suction pipe extends into the evaporation box, a condensation assembly is fixedly mounted on one side of the evaporation box, an air delivery pipe is arranged on the condensation assembly and connected with the air suction assembly, a driving motor is fixedly mounted at the top of the base, and an output shaft of the driving motor is in transmission connection with the rotating shaft.

Preferably, the top of base is rotated and is connected with the connection cover, the bottom of pivot extend to in the connection cover and with the inner wall sliding connection who connects the cover, equal fixed mounting has the bevel gear on driving motor's the output shaft and the connection cover, and two bevel gears mesh mutually, utilize the bevel gear can conveniently drive the pivot and rotate.

Preferably, bottom one side fixed mounting of movable plate has the mounting panel, and the top sliding connection of mounting panel has the slide, the top fixed mounting of slide has the band-type brake motor, fixed mounting has drive gear on the output shaft of band-type brake motor, the bottom fixed mounting of movable plate has the driving rack, drive gear meshes with the driving rack mutually, one side of slide is rotated and is connected with the bracing piece, the one end of bracing piece is rotated with top one side of base and is connected, utilizes band-type brake motor, drive gear and driving rack can drive the bracing piece and rotate.

Preferably, rabbling mechanism includes equidistant fixed mounting at a plurality of stirring rollers of pivot both sides, the equidistant fixed mounting in both sides of stirring roller has a plurality of thermocouples, the top fixed mounting of pivot has the protection casing, fixed mounting has the battery in the protection casing, the battery respectively with a plurality of thermocouple electric connection, utilize the thermocouple can realize heating sewage.

Preferably, the air suction assembly comprises a connecting box fixedly installed at the top of the evaporation box, the other end of the air suction pipe extends into the evaporation box and is fixedly installed in a sealing mode with the inner wall of one side of the evaporation box, a movable cover is connected to the inner wall of the connecting box in a sliding mode in a sealing mode, a sliding plate is installed on one side of the movable cover, extends to the outer side of the connecting box and is fixedly installed on the inner wall of one side of the movable cover, the sliding plate is connected with the top of the evaporation box in a sliding mode, the other end of the air pipe extends into the movable cover and is connected with the inner wall of the movable cover in a sliding mode, one check valves are fixedly installed on the other end of the air pipe and the inner wall of one side of the movable cover, a driving assembly is fixedly installed on one side of the.

Preferably, including the rotation motor of fixed mounting in connecting box top one side on the drive assembly, the output shaft fixed mounting who rotates the motor has the dwang, the bottom fixed mounting of dwang has the pin, and top one side fixed mounting of sliding plate has the U template, pin and U template swing joint utilize U template and pin can conveniently realize driving the removal cover and carry out horizontal reciprocating motion.

Preferably, the condensation subassembly includes the condensing box of fixed mounting in evaporating case one side, the one end of gas-supply pipe extend to in the condensing box and with the sealed fixed connection of top inner wall of condensing box, one side top and the different fixed mounting of one side bottom of condensing box have joint and relief valve, and fixed mounting has the coiled pipe in the condensing box, the both ends of coiled pipe are connected with joint and relief valve respectively, utilize the coiled pipe can conveniently cool down steam.

Preferably, the inner wall of the condensation box is fixedly provided with a downcomer positioned below the coiled pipe, the bottom end of the downcomer extends to the lower part of the condensation box, and the downcomer can be used for facilitating water centralized discharge.

Preferably, the specific using method is as follows:

(A1) starting the band-type brake motor to drive the moving plate to move upwards, so that the sealing plate moves upwards into the sealing ring and is in sealing fit with the sealing ring;

(A2) the sewage containing silt is put into the evaporation box, then a plurality of thermocouples can be electrified, the sewage can be heated, and the sewage can be boiled to form more steam;

(A3) the rotating motor is started to drive the rotating rod to rotate and drive the movable cover to transversely reciprocate, and steam in the evaporation box is conveyed into the condensation box through the gas conveying pipe;

(A4) the joint can connect the existing refrigeration compressor with the coiled pipe, so that cold air can be conveyed into the coiled pipe, steam can be rapidly liquefied into water when being conveyed into the condensation box, and the water can be discharged through the sewer pipe, so that silt in the water can be removed.

Compared with the prior art, the invention has the beneficial effects that:

1. the invention relates to a sewage treatment device for environmental engineering, which is characterized in that a transmission gear rotates by starting a band-type brake motor, and a sliding plate can be driven to slide on a mounting plate under the action of a transmission rack so as to drive a supporting rod to rotate upwards, so that a moving plate can be driven to move upwards, and a sealing plate is driven to move upwards into a sealing ring and is in sealing fit with the sealing ring.

2. The invention relates to a sewage treatment device for environmental engineering, which is characterized in that sewage containing silt is put into an evaporation tank, then a plurality of thermocouples can be electrified to realize heating of the sewage, and the sewage can be boiled to form more steam.

3. The invention relates to a sewage treatment device for environmental engineering, which can drive a rotating rod to rotate by starting a rotating motor, so that a stop rod can be driven to circularly move, the stop rod is in discontinuous contact with a U-shaped plate, and a movable cover can be driven to transversely reciprocate when the stop rod is in contact with the U-shaped plate, so that the principle of negative pressure can be utilized to convey steam in an evaporation box into a condensation box through a gas conveying pipe;

4. the invention relates to a sewage treatment device for environmental engineering, which can connect the prior refrigeration compressor with a coiled pipe through a joint, so that cold air can be conveyed into the coiled pipe, the temperature of the outer surface of the coiled pipe is lower, and when steam is conveyed into a condensation box, the steam can be quickly liquefied into water and can be discharged from a sewer pipe, thereby realizing the removal of silt in the water.

The invention can heat water into gas by utilizing the principle of evaporation, realize the separation from silt and quickly cool steam to form liquid water under the action of condensation, so that the existing filtering equipment is not needed for filtering when in use, and the silt and the water can be thoroughly separated, thereby being very convenient to use.

Drawings

FIG. 1 is a front view of the main structure of the present invention;

FIG. 2 is a front view of the connecting structure of the main body connecting box and the moving cover of the present invention;

FIG. 3 is a front view of the internal structure of the condenser case of the present invention;

FIG. 4 is a side view of the main body mounting plate, band-type brake motor and moving plate connecting structure of the present invention;

fig. 5 is a top view of a connection structure of a rotating motor and a U-shaped plate according to the present invention.

In the figure: 1. a base; 2. a column; 3. an evaporation tank; 4. moving the plate; 5. a sealing plate; 6. a seal ring; 7. a tapered tube; 8. a rotating shaft; 9. mounting a plate; 10. a support bar; 11. a connecting cover; 12. a drive motor; 13. a bevel gear; 14. a stirring roller; 15. a thermocouple; 16. a protective cover; 17. a battery; 18. a connecting box; 19. rotating the motor; 20. a movable cover; 21. rotating the rod; 22. a condenser tank; 23. a gas delivery pipe; 24. a one-way valve; 25. an air intake duct; 26. a sliding plate; 27. a joint; 28. a serpentine tube; 29. a pressure relief valve; 30. a sewer pipe; 31. a slide plate; 32. a band-type brake motor; 33. a transmission gear; 34. a drive rack; 35. a U-shaped plate; 36. a stop lever.

Detailed Description

The embodiment of the application provides a sewage treatment plant for environmental engineering through providing, has solved the problem that provides among the prior art. The following will clearly and completely describe the technical solutions in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example one

Referring to fig. 1-5, the present embodiment provides a sewage treatment apparatus for environmental engineering, including a base 1, two columns 2 are symmetrically and fixedly installed on the top of the base 1, and a same evaporation box 3 is fixedly installed on the top of the two columns 2, a same moving plate 4 is slidably connected to a side of the two columns 2 close to each other, a sealing plate 5 is fixedly installed on the top of the moving plate 4, a sealing ring 6 is fixedly installed on the inner wall of the bottom of the evaporation box 3, a moving hole is opened on the inner wall of the bottom of the evaporation box 3, the top of the sealing plate 5 extends into the sealing ring 6 and is in sealing fit with the inner wall of the sealing ring 6, a rotating shaft 8 is rotatably connected to the sealing plate 5, the bottom end of the rotating shaft 8 extends to the lower side of the moving plate 4, a stirring mechanism is disposed on the rotating shaft 8, a tapered tube 7 is fixedly installed on, the top fixed mounting of evaporation tank 3 has the subassembly of breathing in, is provided with breathing pipe 25 on the subassembly of breathing in, and in the bottom of breathing pipe 25 extended to evaporation tank 3, one side fixed mounting of evaporation tank 3 had the condensation subassembly, is provided with gas-supply pipe 23 on the condensation subassembly, and gas-supply pipe 23 is connected with the subassembly of breathing in, and the top fixed mounting of base 1 has driving motor 12, and driving motor 12's output shaft is connected with 8 transmissions in the pivot.

In this embodiment, the top of the base 1 is rotatably connected with a connecting cover 11, the bottom end of the rotating shaft 8 extends into the connecting cover 11 and is slidably connected with the inner wall of the connecting cover 11, the output shaft of the driving motor 12 and the connecting cover 11 are both fixedly provided with bevel gears 13, and the two bevel gears 13 are engaged with each other, so that the rotating shaft 8 can be conveniently driven to rotate by the bevel gears 13.

Wherein, the transmission gear 33 rotates by starting the band-type brake motor 32, at this time, under the action of the transmission rack 34, the sliding plate 31 can be driven to slide on the mounting plate 9, so as to drive the support rod 10 to rotate upwards, so as to drive the moving plate 4 to move upwards, so as to drive the sealing plate 5 to move upwards into the sealing ring 6 and to be in sealing joint with the sealing ring 6, the sewage containing silt is put into the evaporation box 3, then the thermocouples 15 can be electrified, so as to heat the sewage, at this time, the sewage can be boiled to form more steam, the rotating rod 21 can be driven to rotate by starting the rotating motor 19, so as to drive the stop lever 36 to move annularly, so as to make the stop lever 36 and the U-shaped plate 35 contact intermittently, when the stop lever 36 and the U-shaped plate 35 contact, the moving cover 20 can be driven to move transversely and back and forth, the invention can utilize the principle of evaporation to heat water into gas, realize the separation with silt and can realize the rapid cooling of steam under the effect of condensation, form liquid water, so when using, do not need the existing filtration equipment to filter, and can realize the thorough separation of silt and water, so when using, it is very convenient.

Example two

Referring to fig. 1-5, a further improvement is made on the basis of embodiment 1:

in this embodiment, bottom one side fixed mounting of movable plate 4 has mounting panel 9, and the top sliding connection of mounting panel 9 has slide 31, the top fixed mounting of slide 31 has band-type brake motor 32, fixed mounting has drive gear 33 on the output shaft of band-type brake motor 32, the bottom fixed mounting of movable plate 4 has drive rack 34, drive gear 33 meshes with drive rack 34 mutually, one side of slide 31 is rotated and is connected with bracing piece 10, the one end of bracing piece 10 rotates with top one side of base 1 and is connected, utilize band-type brake motor 32, drive gear 33 and drive rack 34 can drive bracing piece 8 and rotate.

In this embodiment, rabbling mechanism includes equidistant fixed mounting at a plurality of stirring roller 14 of 8 both sides of pivot, and the equidistant fixed mounting in both sides of stirring roller 14 has a plurality of thermocouples 15, and the top fixed mounting of pivot 8 has protection casing 16, and fixed mounting has battery 17 in the protection casing 16, and battery 17 respectively with a plurality of thermocouples 15 electric connection, utilize thermocouple 15 can realize heating sewage.

In this embodiment, the suction assembly includes the connecting box 18 of fixed mounting at the top of evaporation box 3, the other end of breathing pipe 25 extends to in the evaporation box 3 and with the sealed fixed mounting of one side inner wall of evaporation box 3, sealed sliding connection has removal cover 20 on the inner wall of connecting box 18, one side of removing cover 20 extends to the outside of connecting box 18 and fixed mounting has sliding plate 26, sliding plate 26 and the top sliding connection of evaporation box 3, the other end of gas pipe 23 extends to in removing cover 20 and with the sealed sliding connection of inner wall of removal cover 20, equal fixed mounting has check valve 24 on the other end of gas pipe 23 and the one side inner wall of removal cover 20, top one side fixed mounting of connecting box 18 has drive assembly, drive assembly and sliding plate 26 swing joint, utilize two check valves 24 can realize carrying out the directional transport to gas.

In this embodiment, including the rotation motor 19 of fixed mounting in 18 top one side of connecting box on the drive assembly, the output shaft fixed mounting who rotates motor 19 has dwang 21, the bottom fixed mounting of dwang 21 has pin 36, and top one side fixed mounting of sliding plate 26 has U template 35, pin 36 and U template 35 swing joint, utilize U template 35 and pin 36 can conveniently realize driving and remove cover 20 and carry out horizontal reciprocating motion.

In this embodiment, the condensation subassembly includes the condensing box 22 of fixed mounting in evaporating box 3 one side, the one end of gas-supply pipe 23 extend to in the condensing box 22 and with the sealed fixed connection of the top inner wall of condensing box 22, there are joint 27 and relief valve 29 on one side top and the one side bottom difference fixed mounting of condensing box 22, and fixed mounting has coiled pipe 28 in the condensing box 22, the both ends of coiled pipe 28 are connected with joint 27 and relief valve 29 respectively, utilize coiled pipe 28 can conveniently cool down steam.

In this embodiment, the inner wall of the condensation box 22 is fixedly provided with a downcomer 30 located below the serpentine pipe 28, and the bottom end of the downcomer 30 extends to the lower part of the condensation box 22, so that the downcomer 30 can facilitate the concentrated discharge of water.

The working principle is as follows: the transmission gear 33 rotates by starting the band-type brake motor 32, at this time, under the action of the transmission rack 34, the sliding plate 31 can be driven to slide on the mounting plate 9, so that the support rod 10 can be driven to rotate upwards, the moving plate 4 can be driven to move upwards, the sealing plate 5 can move upwards into the sealing ring 6 and be in sealing fit with the sealing ring 6, sewage containing silt is put into the evaporation box 3, then the thermocouples 15 can be electrified, the sewage can be heated, at this time, the sewage can be boiled to form more steam, the connecting cover 11 can be driven to rotate by starting the driving motor 12 through the two bevel gears 13, the rotating shaft 8 can be further driven to rotate, at this time, the thermocouples 15 can perform annular motion, so that the sewage is uniformly heated, and the evaporation efficiency of the sewage is accelerated, and silt in water falls on the sealing plate 5, then the rotating motor 19 is started to drive the rotating rod 21 to rotate, so that the blocking rod 36 is driven to circularly move, the blocking rod 36 is in intermittent contact with the U-shaped plate 35, when the blocking rod 36 is in contact with the U-shaped plate 35, the movable cover 20 can be driven to transversely reciprocate, so that when the two one-way valves 24 are close to each other, gas in the movable cover 20 applies pressure to the one-way valve 24 on the gas pipe 23 to enable the one-way valve 24 to be in an open state, so that steam in the movable cover 20 enters the gas pipe 23, the one-way valve 24 on the movable cover 20 is in a closed state, the connecting box 18 is enabled to be in a negative pressure state, namely the steam in the evaporation box 3 can be pumped into the connecting box 18, when the two one-way valves 24 are far away from each other, a negative pressure state can be formed in the movable cover 20, at this time, the check valve 24 on the movable hood 20 is pressed to be opened, that is, the steam in the connection box 18 can be pumped into the movable hood 20, so that the negative pressure principle can be utilized, the steam in the evaporation box 3 is conveyed into the condensation box 22 through the air conveying pipe 23, the existing refrigeration compressor can be connected with the coiled pipe 28 through the joint 27, so that the cold air can be conveyed into the coiled pipe 28, the temperature of the outer surface of the coiled pipe 28 is low, when the steam is conveyed into the condensation box 22, the steam can be rapidly liquefied into water and can be discharged from the sewer pipe 30, so that the silt in the water can be removed, therefore, the technical scheme can heat the water into gas by utilizing the principle of evaporation, realize the separation from the silt and rapidly cool the steam under the action of condensation to form liquid water, so that when in use, the existing filtering equipment is not needed for filtering, and the silt and the water can be thoroughly separated, so that the device is very convenient to use.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, "first," "second," "third," and "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be further noted that, unless otherwise specifically stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, directly connected, connected through an intermediate medium, or connected through the insides of two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a sewage treatment plant for environmental engineering, includes base (1), its characterized in that: the top of the base (1) is symmetrically and fixedly provided with two columns (2), the top ends of the two columns (2) are fixedly provided with the same evaporation box (3), one side of the two columns (2) close to each other is slidably connected with the same movable plate (4), the top of the movable plate (4) is fixedly provided with a sealing plate (5), the bottom inner wall of the evaporation box (3) is fixedly provided with a sealing ring (6), the bottom inner wall of the evaporation box (3) is provided with a moving hole, the top of the sealing plate (5) extends into the sealing ring (6) and is in sealing fit with the inner wall of the sealing ring (6), the sealing plate (5) is rotatably connected with a rotating shaft (8), the bottom of the rotating shaft (8) extends to the lower part of the rotating shaft (4), the movable plate stirring mechanism is arranged on the rotating shaft (8), the inner wall of the evaporation box (3) is fixedly provided with, the bottom of conical tube (7) and the sealed fixed connection in top of sealing ring (6), the top fixed mounting of evaporation tank (3) has the subassembly of breathing in, be provided with breathing pipe (25) on the subassembly of breathing in, the bottom of breathing pipe (25) extends to in evaporation tank (3), one side fixed mounting of evaporation tank (3) has the condensation subassembly, be provided with gas-supply pipe (23) on the condensation subassembly, gas-supply pipe (23) are connected with the subassembly of breathing in, the top fixed mounting of base (1) has driving motor (12), the output shaft and pivot (8) transmission of driving motor (12) are connected.

2. The sewage treatment device for environmental engineering according to claim 1, wherein: the top of base (1) is rotated and is connected with connecting cover (11), the bottom of pivot (8) extend to in connecting cover (11) and with the inner wall sliding connection who connects cover (11), equal fixed mounting has bevel gear (13) on the output shaft of driving motor (12) and connecting cover (11), and two bevel gear (13) mesh mutually.

3. The sewage treatment device for environmental engineering according to claim 1, wherein: bottom one side fixed mounting of movable plate (4) has mounting panel (9), and the top sliding connection of mounting panel (9) has slide (31), the top fixed mounting of slide (31) has band-type brake motor (32), fixed mounting has drive gear (33) on the output shaft of band-type brake motor (32), the bottom fixed mounting of movable plate (4) has driving rack (34), drive gear (33) mesh mutually with driving rack (34), one side of slide (31) is rotated and is connected with bracing piece (10), the one end of bracing piece (10) is rotated with top one side of base (1) and is connected.

4. The sewage treatment device for environmental engineering according to claim 1, wherein: rabbling mechanism includes equidistant fixed mounting at a plurality of stirring roller (14) of pivot (8) both sides, the equidistant fixed mounting in both sides of stirring roller (14) has a plurality of thermocouples (15), the top fixed mounting of pivot (8) has protection casing (16), fixed mounting has battery (17) in protection casing (16), battery (17) respectively with a plurality of thermocouples (15) electric connection.

5. The sewage treatment device for environmental engineering according to claim 1, wherein: the air suction assembly comprises a connecting box (18) fixedly installed at the top of the evaporation box (3), the other end of the air suction pipe (25) extends into the evaporation box (3) and is fixedly installed on the inner wall of one side of the evaporation box (3) in a sealing mode, a movable cover (20) is connected to the inner wall of the connecting box (18) in a sliding mode in a sealing mode, one side of the movable cover (20) extends to the outer side of the connecting box (18) and is fixedly provided with a sliding plate (26), the sliding plate (26) is connected with the top of the evaporation box (3) in a sliding mode, the other end of the air conveying pipe (23) extends into the movable cover (20) and is connected with the inner wall of the movable cover (20) in a sealing mode in a sliding mode, one-way valves (24) are fixedly installed on the other end of the air conveying pipe (23) and the inner wall of one side of the movable cover (20, the driving component is movably connected with the sliding plate (26).

6. The sewage treatment device for environmental engineering according to claim 5, wherein: the last rotation motor (19) including fixed mounting in connecting box (18) top one side of drive assembly, the output shaft fixed mounting who rotates motor (19) has dwang (21), the bottom fixed mounting of dwang (21) has pin (36), and top one side fixed mounting of sliding plate (26) has U template (35), pin (36) and U template (35) movable contact.

7. The sewage treatment device for environmental engineering according to claim 1, wherein: the condensing assembly comprises a condensing box (22) fixedly installed on one side of the evaporating box (3), one end of the gas conveying pipe (23) extends into the condensing box (22) and is fixedly connected with the top inner wall of the condensing box (22) in a sealing mode, a joint (27) and a pressure release valve (29) are fixedly installed on the top of one side and the bottom of one side of the condensing box (22) respectively, a coiled pipe (28) is fixedly installed in the condensing box (22), and two ends of the coiled pipe (28) are connected with the joint (27) and the pressure release valve (29) respectively.

8. The sewage treatment device for environmental engineering according to claim 7, wherein: a downcomer (30) positioned below the coiled pipe (28) is fixedly arranged on the inner wall of the condensation box (22), and the bottom end of the downcomer (30) extends to the lower part of the condensation box (22).

9. The sewage treatment device for environmental engineering according to claim 1, wherein the specific using method comprises:

(A1) the band-type brake motor (32) is started to drive the moving plate (4) to move upwards, so that the sealing plate (5) moves upwards into the sealing ring (6) and is in sealing fit with the sealing ring (6);

(A2) the sewage containing silt is put into the evaporation box (3), then a plurality of thermocouples (15) can be electrified, so that the sewage can be heated, and the sewage can be boiled to form more steam;

(A3) the rotating motor (19) is started to drive the rotating rod (21) to rotate, the movable cover (20) is driven to transversely reciprocate, and steam in the evaporation box (3) is conveyed into the condensation box (22) through the air conveying pipe (23);

(A4) the joint (27) can connect the prior refrigeration compressor with the coiled pipe (28) so as to convey cold air into the coiled pipe (28), so that when steam is conveyed into the condensation tank (22), the steam can be quickly liquefied into water and can be discharged by the sewer pipe (30), thereby realizing the removal of silt in the water.