Convenient-to-operate concentration evaporator for wastewater treatment

Abstract

The utility model discloses a convenient-to-operate concentration evaporator for wastewater treatment, which comprises a heating chamber and an evaporation chamber, the outer surface of the heating chamber is provided with a feed liquid inlet, a heating steam inlet and a concentrated liquid outlet, the concentration evaporator also comprises a filter cleaner and a fixed screen plate which are distributed in the heating chamber, the bottom of the filter cleaner is provided with a sewage outlet pipeline, and the fixed screen plate is provided with a sewage outlet. A cleaning liquid conveying pipeline is arranged on the outer surface of the filtering cleaner, a gas conveying pipeline is arranged on the top surface of the filtering cleaner, and water leakage holes are formed in the bottom surface of the filtering cleaner; a filtering ring plate in the filtering cleaner filters impurities in wastewater, air pressure in a fixed cylinder body is increased, a piston rod and a sealing piston vertically move upwards, then a sealing plate is driven to move upwards, a liquid outlet pipe and a spraying nozzle leak out, cleaning liquid enters the liquid outlet pipe and is sprayed out from the spraying nozzle, and clean water is injected into a feed liquid inlet. The clean water washes away the mixed solution of the cleaning solution and the precipitated impurities, so that the effect of cleaning the precipitated impurities is achieved, and the cleaning operation is convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of wastewater evaporators, and in particular relates to a concentrating evaporator for wastewater treatment which is easy to operate. Background Art

[0002] The concentrating evaporator treats wastewater by using the principle of evaporation to concentrate the solution. Specifically, the wastewater material enters the heating chamber of the concentrating evaporator from the liquid inlet, and is distributed to the inside of each heat exchange tube through the liquid distributor, and forms a liquid film along the inner wall of the tube. The liquid film on the inner wall of the tube is heated by the heating steam on the shell side during its downward flow, and evaporates while flowing downward. At the bottom of the heat exchange tube, the wastewater material becomes concentrated liquid and secondary steam. It has the characteristics of simple structure, easy operation, low operating cost, and the ability to process a large amount of materials; China's utility model authorized patent CN202223076796.8 discloses a wastewater evaporator, which concentrates wastewater to reduce environmental load, reduce treatment costs, and improve treatment efficiency;

[0003] In the above operation, the wastewater material is distributed to each heat exchange tube by the liquid distributor. The input wastewater material contains impurities, and the wastewater impurities precipitate and block the heat exchange tube port, affecting the downward flow of the wastewater material. In addition, the wastewater material impurities are easily precipitated on the surface of the liquid distributor, affecting the flow of wastewater, and it is inconvenient to clean the precipitated wastewater material impurities; when the liquid distributor distributes the wastewater material in the concentrating evaporator, there is a problem of wastewater impurities precipitating and blocking, and it is inconvenient to clean the precipitated impurities. For this reason, the present application proposes a concentrating evaporator for wastewater treatment that is easy to operate. Utility Model Content

[0004] The utility model aims to provide a concentrating evaporator for wastewater treatment which is easy to operate, so as to solve the problem of wastewater impurity precipitation blockage and inconvenience in cleaning the precipitated impurities in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a concentrating evaporator for wastewater treatment that is easy to operate, comprising a heating chamber and an evaporating chamber, wherein the outer surface of the heating chamber is provided with a feed liquid inlet, a heating steam inlet and a concentrated liquid outlet, and further comprising a filter cleaner and a fixed mesh plate distributed inside the heating chamber, wherein the bottom of the filter cleaner is provided with a sewage outlet pipe, the outer surface of the filter cleaner is provided with a cleaning liquid delivery pipe, the top surface of the filter cleaner is provided with an air delivery pipe, the bottom surface of the filter cleaner is provided with a water leakage hole, and the filter cleaner is provided with a sealing plate and a filter ring plate The filter cleaner is provided with an air pressure lifting component and a spraying component. The air pressure lifting component includes a diverter ring, a connecting air pipe, and a piston lifting cylinder. The piston lifting cylinder includes a fixed cylinder body, a piston rod and a sealing piston. One end of the air delivery pipeline is connected to the diverter ring, and both ends of the connecting air pipe are respectively connected to the diverter ring and the fixed cylinder body. The sealing piston sleeve is arranged on the outside of the piston rod, and the bottom end of the piston rod is connected to the sealing plate. The spraying component includes a liquid storage tray, a liquid outlet pipe, and a spray nozzle. The opposite surfaces of the liquid storage tray are respectively connected to the cleaning liquid delivery pipeline and the liquid outlet pipe, and the spray nozzles are distributed on the outside of the liquid outlet pipe.

[0006] Preferably, the inner surface of the filter ring plate at the bottom of the filter cleaner is distributed in concentric circles from the inside to the outside.

[0007] Preferably, the bottom of the filter ring plate connected to the filter cleaner is a mesh structure.

[0008] Preferably, the cleaning liquid delivery pipeline is connected to the interior of the liquid storage pan, the spray nozzle is connected to the interior of the liquid outlet pipe, and the liquid outlet pipe is connected to the liquid storage pan by screwing.

[0009] Preferably, the sealing plate is provided with a through hole, the liquid outlet pipe is an inverted "T"-shaped structure, and the bottom end of the liquid outlet pipe is gap-matched with the through hole.

[0010] Preferably, the vertical distance between the spray nozzle and the axis of the liquid outlet pipe is 2 mm smaller than the radius of the through hole on the sealing plate.

[0011] Preferably, a movable cavity is provided in the fixed cylinder body, the sealing piston is located inside the movable cavity, the centers of the fixed cylinder body, the piston rod and the sealing piston are on the same axis, and the piston rod is slidably connected to the fixed cylinder body.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] In the utility model, the filter ring plate inside the filter cleaner filters impurities in the waste water, the air pressure in the fixed cylinder increases, the piston rod and the sealing piston move vertically upward, thereby driving the sealing plate to move upward, causing the liquid outlet pipe and the spray nozzle to leak out, the cleaning liquid enters the liquid outlet pipe and is sprayed out from the spray nozzle, and clean water is injected into the liquid inlet, and the clean water washes away the mixed solution formed by the reaction of the cleaning liquid and the precipitated impurities, thereby achieving the effect of cleaning the precipitated impurities and facilitating the cleaning operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a cross-sectional structural schematic diagram of the filter cleaner of the utility model;

[0016] Figure 3 For the utility model Figure 2 Schematic diagram of the structure in the AA direction;

[0017] Figure 4 This is a schematic diagram of the main structure of the filter ring plate of the utility model;

[0018] Figure 5 For the utility model Figure 2 The enlarged structural diagram of the middle B part;

[0019] In the figure: 2, filter cleaner; 3, cleaning liquid delivery pipeline; 4, sewage outlet pipeline; 5, gas pipeline; 6, diverter ring; 7, connecting air pipe; 9, liquid storage tray; 10, liquid outlet pipe; 11, heating chamber; 12, evaporation chamber; 21, sealing plate; 22, filter ring plate; 23, water leakage hole; 81, fixed cylinder body; 82, piston rod; 83, sealing piston; 101, spray nozzle; 111, liquid inlet; 112, heating steam inlet; 113, concentrate outlet; 114, fixed mesh plate; 811, movable cavity. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Example

[0022] See also Figures 1 to 5The utility model provides a technical solution: a concentrating evaporator for wastewater treatment that is easy to operate, comprising a heating chamber 11 and an evaporating chamber 12, wherein the outer surface of the heating chamber 11 is provided with a feed liquid inlet 111, a heating steam inlet 112 and a concentrated liquid outlet 113, and further comprising a filter cleaner 2 and a fixed mesh plate 114 distributed inside the heating chamber 11, wherein the wastewater material enters the heating chamber 11 of the concentrating evaporator from the feed liquid inlet 111, and is distributed to the inside of each heat exchange tube through a liquid distributor, and forms a liquid film along the inner wall of the tube, and the heating steam enters the heating heat exchange tube from the heating steam inlet 112, and the liquid film on the inner wall of the tube is heated by the heating steam on the shell side during its downward flow, and evaporates while flowing downward, and reaches the bottom of the heat exchange tube, and the wastewater material The material becomes concentrated liquid and secondary steam, and the concentrated liquid flows out from the concentrated liquid outlet 113. The evaporation principle of the concentrated evaporator for treating wastewater is a conventional technology and is not described in detail in this application; the filter cleaner 2 plays the role of filtering and cleaning precipitated impurities, and the filter cleaner 2 is screwed together with the fixed mesh plate 114 by bolts, and the fixed mesh plate 114 firmly holds the filter cleaner 2; a sewage outlet pipe 4 is provided at the bottom of the filter cleaner 2, and a valve is installed on one end of the sewage outlet pipe 4 extending out of the tank body of the heating chamber 11. When the valve is opened, the precipitated sewage can flow out; a cleaning liquid delivery pipe 3 is provided on the outer surface of the filter cleaner 2, and the cleaning liquid delivery pipe 3 plays the role of conveying cleaning liquid, and a gas delivery pipe 5 is provided on the top surface of the filter cleaner 2. 5 plays the role of conveying gas; the bottom surface of the filter cleaner 2 is provided with a leaking hole 23, which does not affect the leakage of wastewater materials. The filter cleaner 2 is provided with a sealing plate 21 and a filter ring plate 22. The filter ring plate 22 plays the role of filtering impurities in the wastewater materials, and the sealing plate 21 plays a sealing role to prevent wastewater from overflowing; the filter cleaner 2 is provided with an air pressure lifting component and a spraying component. The air pressure lifting component includes a diverter ring 6, a connecting air pipe 7, and a piston lifting cylinder. The piston lifting cylinder includes a fixed cylinder body 81, a piston rod 82 and a sealing piston 83. One end of the gas transmission pipeline 5 is connected to the diverter ring 6, and the two ends of the connecting air pipe 7 are respectively connected to the diverter ring 6 and the fixed cylinder body 81. The sealing piston 83 is sleeved on the outer side of the piston rod 82. The piston rod 82 The bottom end is connected to the sealing plate 21, and the gas pipeline 5 transports gas to the inside of the diverter ring 6. The gas in the diverter ring 6 enters the fixed cylinder 81 from the connecting gas pipe 7 to increase the air pressure, so that the piston rod 82 and the sealing piston 83 move vertically upward, thereby driving the action of the sealing plate 21 to cause the liquid outlet pipe 10 and the spray nozzle 101 to leak; the spray assembly includes a liquid storage tray 9, a liquid outlet pipe 10, and a spray nozzle 101. The opposite surfaces of the liquid storage tray 9 are respectively connected to the cleaning liquid delivery pipeline 3 and the liquid outlet pipe 10. The spray nozzle 101 is distributed on the outside of the liquid outlet pipe 10. The cleaning liquid is transported from the cleaning liquid delivery pipeline 3, and the cleaning liquid enters the liquid storage tray 9. Then the cleaning liquid enters the liquid outlet pipe 10 and is sprayed from the spray nozzle 101, so as to achieve the effect of cleaning precipitated impurities.

[0023] In this embodiment, the filter ring plate 22 is located on the inner surface of the bottom end of the filter cleaner 2 and is distributed in concentric circles from the inside to the outside. The bottom where the filter ring plate 22 is connected to the filter cleaner 2 is a mesh structure, and the filter ring plate 22 filters impurities in the wastewater.

[0024] In this embodiment, the cleaning liquid delivery pipeline 3 is connected to the interior of the liquid storage pan 9, the spray nozzle 101 is connected to the interior of the liquid outlet pipe 10, the liquid outlet pipe 10 and the liquid storage pan 9 are connected by threaded engagement, and the cleaning liquid is delivered from the cleaning liquid delivery pipeline 3, the cleaning liquid enters the liquid storage pan 9, and then the cleaning liquid enters the liquid outlet pipe 10 and is sprayed out from the spray nozzle 101, thereby achieving the effect of cleaning precipitated impurities.

[0025] In this embodiment, a through hole is provided on the sealing plate 21, and the liquid outlet pipe 10 is an inverted "T"-shaped structure. The bottom end of the liquid outlet pipe 10 is matched with the gap of the through hole. The vertical distance between the spray nozzle 101 and the axis of the liquid outlet pipe 10 is 2 mm smaller than the radius of the through hole on the sealing plate 21. The spray nozzle 101 does not affect the vertical upward movement of the sealing plate 21.

[0026] In this embodiment, a movable chamber 811 is provided in the fixed cylinder body 81, and the sealing piston 83 is located inside the movable chamber 811. The centers of the fixed cylinder body 81, the piston rod 82 and the sealing piston 83 are on the same axis. The piston rod 82 is slidably connected to the fixed cylinder body 81. The gas in the diverter ring 6 enters the fixed cylinder body 81 from the connecting air pipe 7 to increase the air pressure, so that the piston rod 82 and the sealing piston 83 move vertically upward, thereby driving the action of the sealing plate 21, causing the liquid outlet pipe 10 and the spray nozzle 101 to leak.

[0027] The working principle and use process of this utility model:

[0028] Steps to filter and clean the wastewater;

[0029] First, the wastewater material enters the filter cleaner 2 in the heating chamber 11 of the concentration evaporator from the feed liquid inlet 111;

[0030] Second, the wastewater flows outward from the center of the bottom of the filter cleaner 2, and the filter ring plate 22 filters the impurities in the wastewater. After the wastewater in the filter cleaner 2 reaches a certain water level, it flows out from the water outlet provided on the outside of the filter cleaner 2 and falls onto the liquid distributor. The liquid distributor distributes the wastewater material to the inside of each heat exchange tube;

[0031] Third, when evaporation is stopped and the precipitated impurities in the filter cleaner 2 are cleaned, gas is injected from the gas pipeline 5, and the gas pipeline 5 transports the gas to the inside of the diverter ring 6. The gas in the diverter ring 6 enters the inside of the fixed cylinder 81 from the connecting gas pipe 7, increasing the gas pressure inside the fixed cylinder 81;

[0032] Fourth, the air pressure in the fixed cylinder 81 increases, the piston rod 82 and the sealing piston 83 move vertically upward, thereby driving the sealing plate 21 to move upward, causing the liquid outlet pipe 10 and the spray nozzle 101 to leak;

[0033] Fifth, the cleaning liquid is delivered from the cleaning liquid delivery pipeline 3, the cleaning liquid enters the liquid storage tray 9, and then the cleaning liquid enters the liquid outlet pipe 10 and is sprayed out from the spray nozzle 101, and the cleaning liquid reacts with the precipitated impurities;

[0034] Sixth, clean water is injected into the liquid inlet 111 to wash away the mixed solution of the cleaning liquid and the precipitated impurities, thereby achieving the effect of cleaning the precipitated impurities;

[0035] To sum up: the filter ring plate 22 inside the filter cleaner 2 filters impurities in the wastewater, the air pressure in the fixed cylinder 81 increases, the piston rod 82 and the sealing piston 83 move vertically upward, thereby driving the sealing plate 21 to move upward, causing the liquid outlet pipe 10 and the spray nozzle 101 to leak out, and the cleaning liquid enters the liquid outlet pipe 10 and is sprayed out from the spray nozzle 101. Clean water is injected at the liquid inlet 111, and the clean water washes away the mixed solution of the cleaning liquid and the precipitated impurities, thereby achieving the effect of cleaning the precipitated impurities and facilitating the cleaning operation.

[0036] Although the embodiments of the present invention have been shown and described (see the detailed description above for details), 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 wastewater treatment concentrating evaporator that is easy to operate, comprising a heating chamber (11) and an evaporating chamber (12), wherein the outer surface of the heating chamber (11) is provided with a feed liquid inlet (111), a heating steam inlet (112) and a concentrated liquid outlet (113), Features: The invention also comprises a filter cleaner (2) and a fixed mesh plate (114) distributed inside the heating chamber (11), wherein a sewage outlet pipe (4) is provided at the bottom of the filter cleaner (2), a cleaning liquid delivery pipe (3) is provided on the outer surface of the filter cleaner (2), an air delivery pipe (5) is provided on the top surface of the filter cleaner (2), a water leakage hole (23) is provided on the bottom surface of the filter cleaner (2), a sealing plate (21) and a filter ring plate (22) are provided inside the filter cleaner (2), and an air pressure lifting component and a spraying component are provided inside the filter cleaner (2), wherein the air pressure lifting component comprises a diverter ring (6), a connecting air pipe (7), and a piston lifting cylinder, and an air pressure lifting component comprises a piston lifting cylinder, and an air pressure lifting component comprises a connecting air pipe (7), and a connecting air pipe (8). The plug lifting cylinder comprises a fixed cylinder body (81), a piston rod (82) and a sealing piston (83); one end of the air delivery pipeline (5) is connected to the diverter ring (6); two ends of the connecting air pipe (7) are respectively connected to the diverter ring (6) and the fixed cylinder body (81); the sealing piston (83) is sleeved on the outer side of the piston rod (82); the bottom end of the piston rod (82) is connected to the sealing plate (21); the spraying assembly comprises a liquid storage tray (9), a liquid outlet pipe (10), and a spraying nozzle (101); opposite surfaces of the liquid storage tray (9) are respectively connected to the cleaning liquid delivery pipeline (3) and the liquid outlet pipe (10); and the spraying nozzles (101) are distributed on the outer side of the liquid outlet pipe (10).

2. A wastewater treatment concentrating evaporator that is easy to operate according to claim 1, Features: The filter ring plate (22) is located on the inner surface of the bottom end of the filter cleaner (2) and is distributed in concentric circles from the inside to the outside.

3. A wastewater treatment concentrating evaporator that is easy to operate according to claim 1, Features: The bottom of the filter ring plate (22) connected to the filter cleaner (2) is a mesh structure.

4. A wastewater treatment concentrating evaporator that is easy to operate according to claim 1, Features: The cleaning liquid delivery pipeline (3) is connected to the interior of the liquid storage tray (9), the spray nozzle (101) is connected to the interior of the liquid outlet pipe (10), and the liquid outlet pipe (10) is connected to the liquid storage tray (9) by screwing.

5. A wastewater treatment concentrating evaporator that is easy to operate according to claim 1, Features: The sealing plate (21) is provided with a through hole, the liquid outlet pipe (10) is an inverted "T"-shaped structure, and the bottom end of the liquid outlet pipe (10) is in clearance fit with the through hole.

6. A convenient-to-operate concentrating evaporator for wastewater treatment according to claim 5, Features: The vertical distance between the spray nozzle (101) and the axis of the liquid outlet pipe (10) is 2 mm smaller than the radius of the through hole on the sealing plate (21).

7. A wastewater treatment concentrating evaporator that is easy to operate according to claim 1, Features: The fixed cylinder body (81) is provided with an active chamber (811), the sealing piston (83) is located inside the active chamber (811), the centers of the fixed cylinder body (81), the piston rod (82) and the sealing piston (83) are on the same axis, and the piston rod (82) is slidably connected to the fixed cylinder body (81).

Images