Desulfurization wastewater recovery and separation treatment device

Abstract

The utility model provides a desulfurization wastewater recovery and separation treatment device, which relates to the field of desulfurization wastewater recovery and separation and comprises a desulfurization reaction tank and a wastewater separation pool, the wastewater separation pool is welded and fixed at the lower end of the desulfurization reaction tank, and a screw conveyor is obliquely mounted on the inner side of the wastewater separation pool. A spiral blade is connected to the inner side of the spiral conveyor through a second motor, a notch in the upper end of the spiral conveyor is connected with the desulfurization reaction tank through a discharging pipe, a filter screen plate is welded to the lower left end face of the spiral conveyor, and the lower end face of the filter screen plate makes contact with an arc-shaped washing plate through bristles. A high-pressure nozzle is embedded in the upper arc surface of the arc-shaped washing plate, and the upper end of the arc-shaped washing plate is connected with an electric sliding table on the inner wall of the upper end of the wastewater separation tank through a driving frame. The utility model solves the problem in the prior art that the wastewater separation treatment efficiency is influenced because the sediments are easy to accumulate and block the meshes when the filter screen in the deposit cleaning pool is separated.

Description

TECHNICAL FIELD

[0001] The utility model relates to desulfurization wastewater recovery separation technical field, concretely relates to a kind of desulfurization wastewater recovery separation treatment device. BACKGROUND

[0002] Desulfurization wastewater is mainly the discharge water of absorption tower in the process of boiler flue gas wet desulfurization (limestone / gypsum method), through retrieval, the prior art (announcement number:CN202320310643.0) a kind of desulfurization wastewater treatment device of thermal power plant, the wastewater and sediment are separated again in the bottom filter screen set in the accumulation material cleaning pool in the document, sediment accumulated in the bottom end of desulfurization wastewater treatment pool can be quickly discharged from the accumulation material discharge port, facilitate the cleaning of sediment in the bottom of desulfurization wastewater treatment pool, it is beneficial to the neutralization reaction of wastewater quickly carry out, but the filter screen separation in the accumulation material cleaning pool in prior art sediment is prone to accumulation and block the mesh, thereby affecting wastewater separation treatment efficiency problem. SUMMARY

[0003] To overcome the defects existing in the prior art, a desulfurization wastewater recovery separation treatment device is provided to solve the problem of sediment accumulation and block the mesh in the filter screen separation in the accumulation material cleaning pool in the prior art, thereby affecting wastewater separation treatment efficiency.

[0004] To achieve the above object, a desulfurization wastewater recovery separation treatment device is provided, comprising: a desulfurization reaction tank and a wastewater separation tank, the desulfurization reaction tank is welded with a wastewater separation tank,

[0005] The inside of the wastewater separation tank is inclinedly installed with a screw conveyor, the inside of the screw conveyor is connected with a spiral blade through a motor two, the upper end slot of the screw conveyor is connected with the desulfurization reaction tank through a discharge pipe, the lower end surface of the left side of the screw conveyor is welded with a filter screen plate, the lower end surface of the filter screen plate is in contact with an arc-shaped flushing plate through bristles, the upper arc surface of the arc-shaped flushing plate is embeddedly installed with a high-pressure spray head, the upper end of the arc-shaped flushing plate is connected with the electric sliding table at the inner wall of the upper end of the wastewater separation tank through a driving frame.

[0006] Further, the desulfurization reaction tank is fixed with a desulfurization wastewater pipe at the upper end of the tank, the surface of the discharge pipe is installed with an electric gate valve, the inside of the desulfurization reaction tank is provided with a stirring paddle.

[0007] Further, the stirring paddle is connected with a motor one through a stirring shaft, the motor one is fixedly installed at the upper end surface of the desulfurization reaction tank.

[0008] Further, the wastewater separation tank is connected with a water outlet pipe at the left side end, the lower end surface of the right side of the screw conveyor is provided with a discharge port; and a slope is arranged below the discharge port.

[0009] Further, the wastewater separation tank upper surface is fixed with a liquid delivery pump, the arc-shaped flushing plate rear side end is connected with a water pipe through a water inlet interface, and the water pipe surface is mounted with a liquid delivery pump.

[0010] Further, the arc-shaped flushing plate inner side is provided with a liquid delivery cavity, and the liquid delivery cavity is connected with the high-pressure nozzle, and the high-pressure nozzle left and right sides are bonded with brush hairs.

[0011] Further, the spiral conveyor, spiral blade, filter screen plate, arc-shaped flushing plate, driving frame, brush hair and high-pressure nozzle constitute a self-cleaning separation mechanism of the wastewater separation tank.

[0012] The desulfurization wastewater recycling separation treatment device of the utility model has the advantages that the spiral conveyor in the wastewater separation tank separates and conveys the reacted wastewater and the precipitate, the wastewater flows out along the filter screen plate of the left lower end, the spiral blade pushes the precipitate to discharge from the right end discharge port, the wastewater and the precipitate after desulfurization reaction are separated quickly, the treatment efficiency of the desulfurization wastewater recycling separation treatment device is improved, the arc-shaped flushing plate moves back and forth to brush the filter screen plate surface of the spiral conveyor, the high-pressure nozzle flushes the precipitate blocked in the filter screen hole at the same time, the filter screen plate surface of the spiral conveyor is cleaned conveniently and efficiently, the filter screen plate surface of the spiral conveyor is prevented from being blocked to affect the wastewater flow speed, and the wastewater and the precipitate after desulfurization reaction are fully separated. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 It is a front view structural schematic diagram of the desulfurization wastewater recycling separation treatment device of the utility model embodiment.

[0014] Fig. 2 It is a front view sectional structure schematic diagram of the desulfurization wastewater recycling separation treatment device of the utility model embodiment.

[0015] Fig. 3 It is a front view sectional structure schematic diagram of the wastewater separation tank of the utility model embodiment.

[0016] Fig. 4 It is a side view sectional structure schematic diagram of the arc-shaped flushing plate of the utility model embodiment.

[0017] In the drawing: 1, desulfurization reaction tank; 11, electric gate valve; 12, discharging pipe; 2, wastewater separation tank; 21, liquid delivery pump; 22, water pipe; 23, water outlet pipe; 3, desulfurization wastewater pipe; 4, stirring paddle; 41, motor one; 42, stirring shaft; 5, spiral conveyor; 51, spiral blade; 52, motor two; 53, discharge port; 54, filter screen plate; 6, arc-shaped flushing plate; 61, driving frame; 62, brush hair; 63, water inlet interface; 64, liquid delivery cavity; 65, high-pressure nozzle. DETAILED DESCRIPTION

[0018] Referring to Figs. 1 to 4 The utility model provides a kind of desulfurization wastewater recovery separation treatment device, comprising: desulfurization reaction tank 1 and wastewater separation tank 2, desulfurization reaction tank 1 lower end is welded with wastewater separation tank 2 fixed,

[0019] Wastewater separation tank 2 inside is obliquely installed with screw conveyor 5, screw conveyor 5 inside is connected with spiral blade 51 by motor two 52, screw conveyor 5 upper end notch is connected with desulfurization reaction tank 1 by discharging pipe 12, screw conveyor 5 left lower end surface is welded with filter screen plate 54, filter screen plate 54 lower end surface is contacted with arc-shaped scouring plate 6 by bristle 62, arc-shaped scouring plate 6 upper arc surface is embeddedly installed with high-pressure spray head 65, arc-shaped scouring plate 6 upper end is connected with the electric sliding table at the wastewater separation tank 2 upper end inner wall by driving frame 61.

[0020] First, the recovered desulfurization wastewater is introduced into the desulfurization reaction tank 1 through the desulfurization wastewater pipe 3, and a chemical reaction reagent is added to the desulfurization reaction tank 1. The precipitate is produced by the stirring and mixing of the stirring paddle 4. The electric gate valve 11 is opened, and the wastewater and the precipitate after the reaction are transported into the screw conveyor 5. The spiral blade 51 of the screw conveyor 5 rotates and transports the precipitate to the right and upward. The wastewater flows along the inclined surface of the screw conveyor 5 to the filter screen plate 54 and is discharged into the wastewater separation tank 2. The precipitate transported to the right and upward is discharged from the screw conveyor 5 through the discharge port 53. During the separation process of the screw conveyor 5, the electric sliding table at the upper end inner wall of the wastewater separation tank 2 drives the driving frame 61 to move back and forth at regular intervals. The water pipe 22 delivers water to the high-pressure spray head 65 on the surface of the arc-shaped scouring plate 6 at the same time, so that the high-pressure spray head 65 washes the filter screen plate 54 while the bristle 62 brushes it at the same time. This facilitates efficient cleaning of the filter screen plate 54 of the screw conveyor 5, avoids clogging of the filter screen plate 54, and ensures that the wastewater and the precipitate after desulfurization reaction are fully separated.

[0021] In this embodiment, the desulfurization wastewater pipe 3 is fixed at the upper end of the desulfurization reaction tank 1. The electric gate valve 11 is installed on the surface of the discharging pipe 12. The stirring paddle 4 is arranged inside the desulfurization reaction tank 1. The stirring paddle 4 is connected to the motor one 41 through the stirring shaft 42. The motor one 41 is fixedly installed at the upper end surface of the desulfurization reaction tank 1.

[0022] As a preferred embodiment, the desulfurization wastewater pipe 3 introduces the recovered wastewater into the desulfurization reaction tank 1, so that the wastewater delivered by the desulfurization wastewater pipe 3 and the chemical reaction reagent react under the stirring and mixing of the stirring shaft 42 to produce precipitate, which facilitates the removal of sulfides and harmful substances from the wastewater.

[0023] In the embodiment, the wastewater separation tank 2 is connected with a water outlet pipe 23 at the left end, and a discharge port 53 is formed in the lower end surface of the screw conveyor 5; and a slope is arranged below the discharge port 53.

[0024] As a preferred embodiment, the water outlet pipe 23 is convenient for discharging the wastewater left by the filter screen plate 54 of the screw conveyor 5, so as to realize the rapid separation and treatment of the wastewater and the precipitate. The discharge port 53 is used for discharging the precipitate conveyed by the screw blade 51 to the right and upward, so as to make the precipitate fall on the slope.

[0025] In the embodiment, the upper surface of the wastewater separation tank 2 is fixed with a liquid delivery pump 21, the rear end of the arc-shaped flushing plate 6 is connected with a water pipe 22 through a water inlet interface 63, and the surface of the water pipe 22 is mounted with the liquid delivery pump 21. The inner side of the arc-shaped flushing plate 6 is provided with a liquid delivery cavity 64; and the liquid delivery cavity 64 is communicated with a high-pressure spray head 65, and the high-pressure spray head 65 is bonded with brush hairs 62 on the left and right side surfaces.

[0026] As a preferred embodiment, the liquid delivery pump 21 is convenient for delivering the water in the water pipe 22 to the high-pressure spray head 65 to be sprayed, so as to make the high-pressure spray head 65 flush the filter screen plate 54 of the screw conveyor 5, and the brush hairs 62 brush at the same time, so as to clean the blockage in the mesh holes of the filter screen plate 54, and avoid the blockage affecting the separation of the wastewater and the precipitate.

[0027] In the embodiment, the screw conveyor 5, the screw blade 51, the filter screen plate 54, the arc-shaped flushing plate 6, the driving frame 61, the brush hairs 62 and the high-pressure spray head 65 constitute a self-cleaning separation mechanism of the wastewater separation tank 2.

[0028] As a preferred embodiment, the self-cleaning separation mechanism of the wastewater separation tank 2 is convenient for rapidly separating the wastewater and the precipitate after the desulfurization reaction, and conveniently and efficiently flushing and cleaning the surface of the filter screen plate 54 of the screw conveyor 5, so as to avoid the blockage of the surface of the filter screen plate 54 of the screw conveyor 5 affecting the flow speed of the wastewater, and ensure that the wastewater and the precipitate after the desulfurization reaction are fully separated.

[0029] The desulfurization wastewater recovery and separation treatment device can effectively solve the problem that the precipitate is easy to accumulate and block the mesh holes in the filter screen separation in the existing technology, so as to affect the wastewater separation treatment efficiency, and is convenient for rapidly separating the wastewater and the precipitate after the desulfurization reaction, improves the treatment efficiency of the desulfurization wastewater recovery and separation treatment device, conveniently and efficiently flushes and cleans the surface of the filter screen plate of the screw conveyor, avoids the blockage of the surface of the filter screen plate of the screw conveyor affecting the flow speed of the wastewater, ensures that the wastewater and the precipitate after the desulfurization reaction are fully separated, and is suitable for the desulfurization wastewater recovery and separation treatment device.

Claims

1. A desulfurization wastewater recovery separation treatment apparatus comprising: The desulfurization reaction tank (1) and the wastewater separation tank (2) are characterized in that: The wastewater separation tank (2) is internally inclinedly installed with a spiral conveyor (5), the spiral conveyor (5) is internally connected with a spiral blade (51) through a motor two (52), the upper end slot of the spiral conveyor (5) is connected with the desulfurization reaction tank (1) through a discharging pipe (12), the lower end surface of the spiral conveyor (5) is welded with a filter screen plate (54), the lower end surface of the filter screen plate (54) is in contact with an arc-shaped flushing plate (6) through bristles (62), the upper arc surface of the arc-shaped flushing plate (6) is embeddedly installed with a high-pressure spray head (65), and the upper end of the arc-shaped flushing plate (6) is connected with the electric sliding table at the inner wall of the upper end of the wastewater separation tank (2) through a driving frame (61).

2. The device for recovering and separating desulfurization wastewater according to claim 1, characterized in that, The desulfurization reaction tank (1) is internally provided with stirring paddles (4).

3. The device for recovering and separating desulfurization wastewater according to claim 2, characterized in that, The stirring paddles (4) are connected with a motor one (41) through a stirring shaft (42), and the motor one (41) is fixedly installed at the upper end surface of the desulfurization reaction tank (1).

4. The device for recovering and separating desulfurization wastewater according to claim 1, characterized in that, The wastewater separation tank (2) is connected with a water outlet pipe (23) at the left side end, and the lower end surface of the spiral conveyor (5) is provided with a discharge port (53); and a slope is arranged below the discharge port (53).

5. The device for recovering and separating desulfurization wastewater according to claim 1, characterized in that, The wastewater separation tank (2) is fixedly installed with a liquid delivery pump (21) on the upper surface, the arc-shaped flushing plate (6) is connected with a water pipe (22) through a water inlet interface (63) at the rear side end, and the water pipe (22) is installed with the liquid delivery pump (21) on the surface.

6. The device for recovering and separating desulfurization wastewater according to claim 1, characterized in that, The arc-shaped flushing plate (6) is internally provided with a liquid delivery cavity (64); the liquid delivery cavity (64) is in communication with the high-pressure spray head (65), and the bristles (62) are bonded on the left and right side surfaces of the high-pressure spray head (65).

7. The device for recovering and separating desulfurization wastewater according to claim 1, characterized in that, The spiral conveyor (5), the spiral blade (51), the filter screen plate (54), the arc-shaped flushing plate (6), the driving frame (61), the bristles (62) and the high-pressure spray head (65) constitute a self-cleaning separation mechanism of the wastewater separation tank (2).

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