Desulfurization wastewater treatment device

Abstract

The utility model relates to the technical field of desulfurization wastewater treatment, in particular to a desulfurization wastewater treatment device which filters desulfurization wastewater through a filtering device, switches the filtering process, is convenient to clean the filtering device, reduces the influence on the filtering effect, is convenient to clean the filtering device through a cleaning device, and improves the filtering efficiency. Dirt is discharged out of the equipment through the dirt discharging device, so that the practicability of the device is improved; comprising a filtering device, a cleaning device and a blowdown device, the cleaning device is installed on the filtering device, and the blowdown device is installed on the filtering device.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of desulfurization wastewater treatment, in particular to a desulfurization wastewater treatment device. BACKGROUND

[0002] The treatment of desulfurization wastewater is of great significance to environmental protection. Through effective treatment process, the desulfurization wastewater can be discharged or reused, reducing the waste of water resources and pollution to the environment. With the continuous progress of technology and the continuous improvement of environmental protection requirements, the treatment technology of desulfurization wastewater will also be continuously developed and improved. Limestone-gypsum wet desulfurization technology is the most widely used flue gas desulfurization technology in thermal power plants. A large amount of wastewater, i.e. desulfurization wastewater, is discharged periodically during the operation of the desulfurization device. The wastewater has the characteristics of high suspended solids concentration, high inorganic salt and heavy metal ion concentration. The chemical dosing method is used for the treatment of desulfurization wastewater. The chemical treatment method of neutralization, precipitation, flocculation and concentration and clarification is often used for treatment.

[0003] The prior art patent CN202222718007.X relates to a desulfurization wastewater treatment device for thermal power plants, which comprises a desulfurization wastewater treatment tank, a water injection pipe, a drive motor, fixing bolts, a bottom filter screen, a control valve and fixing screws, etc. The device can facilitate the user to clean the sediment at the bottom of the desulfurization wastewater treatment tank.

[0004] However, the above-mentioned device does not have the ability to clean the filter screen in actual use, and the impurity content in the wastewater is high, which can quickly reduce the filtering effect of the filter screen during the treatment process. UTILITY MODEL CONTENTS

[0005] To solve the above technical problems, the utility model provides a desulfurization wastewater treatment device which filters the desulfurization wastewater through a filtering device, switches the filtering process, facilitates the cleaning of the filtering device, reduces the impact on the filtering effect, cleans the filtering device through a cleaning device, discharges the dirt from the equipment through a pollution discharge device, and improves the practicality of the device.

[0006] The utility model relates to a desulfurization wastewater treatment device, which comprises a filtering device, a cleaning device and a pollution discharge device. The cleaning device is installed on the filtering device, and the pollution discharge device is installed on the filtering device. The desulfurization wastewater is filtered through the filtering device, the filtering process is switched, the filtering device is cleaned, the impact on the filtering effect is reduced, the filtering device is cleaned through the cleaning device, the dirt is discharged from the equipment through the pollution discharge device, and the practicality of the device is improved.

[0007] Preferably, the filtering device comprises a treatment box, a rotating shaft base, a filter frame, a filter screen, a partition plate and a three-way electromagnetic valve, the partition plate is installed in the middle of the treatment box to divide the treatment box into two chambers, a set of rotating shaft bases are respectively installed on the upper end face of the partition plate, the filter frame is connected to the side surface of the rotating shaft base, the filter screen is installed in the middle of the filter frame, the three-way electromagnetic valve is installed on the upper end face of the treatment box, and the two output ends of the three-way electromagnetic valve are respectively communicated with the inside of the two chambers; the sewage is distributed by the three-way electromagnetic valve to enter the two parts of the treatment box, and the single chamber is controlled not to enter the sewage, so as to facilitate cleaning; the sewage is filtered by the filter screen, the filter frame and the rotating shaft base are matched to drive the filter screen to rotate to different heights, so as to facilitate the cleaning device to clean the filter screen, the filter screen falls to prevent the sewage on both sides from flowing from the upper part of the partition plate to the other chamber, and the inclined filter screen makes the dirt naturally slide from the surface of the filter screen to the lower part, so as to facilitate maintaining the filtering effect of the filter screen and improve the practicability of the device.

[0008] Preferably, the device further comprises a speed reducer, a motor and a support plate, a set of speed reducers are respectively installed on the front end face of the treatment box, the motor is installed on the speed reducer, the output end of the speed reducer is connected to the rotating shaft base on the same side, and a set of support plates are respectively and obliquely installed on the lower part of the left and right end faces of the treatment box, and the filter frame can be placed on the support plate; the dirt falling from the filter frame and the filter screen is collected by the filter frame, the power is transmitted to the rotating shaft base through the support plate by starting the motor to drive the filter frame to rotate, so as to switch the working state and the cleaning state of the filter screen, and the cleaning device can complete the cleaning work on the surface of the filter screen without disassembly, thereby improving the practicability of the device and the filtering capacity of the equipment.

[0009] Preferably, the cleaning device comprises a speed reduction motor, a lead screw, a limiting light rod, a horizontal moving platform and a brush, the speed reduction motor is installed on the left end face of the treatment box, the lead screw and two sets of limiting light rods are horizontally installed on the upper part of the treatment box, the two sets of limiting light rods are respectively located on the front and rear sides of the lead screw, the horizontal moving platform is connected with the lead screw through a nut, the two sets of limiting light rods pass through the front and rear parts of the horizontal moving platform, and the brush is installed on the lower end face of the horizontal moving platform; the power is transmitted to the horizontal moving platform through the lead screw by starting the speed reduction motor to drive the horizontal moving platform to move horizontally, so as to make the brush clean the upper surface of the filter screen, the horizontal moving process of the horizontal moving platform is limited by the limiting light rods, the vibration amplitude in the horizontal moving process of the horizontal moving platform is reduced, and the stability and practicability of the device are improved.

[0010] Preferably, the outer sealing plate, rubber sealing plate and inner sealing baffle are further included, a group of outer sealing plates are arranged on the front and rear edges of the lower end surface of the filter frame respectively, a rubber sealing plate is arranged on the outer side of the lower end surface of the filter frame, a group of inner sealing baffles are arranged on the inner front and rear sides of the support plate respectively, and the outer sealing plate can cover the inner sealing baffle; the gap between the filter frame and the front and rear sides of the support plate is sealed through cooperation of the outer sealing plate and the inner sealing baffle, so that the sewage is prevented from flowing out through the gap between the front and rear sides, the rubber sealing plate is pressed against the upper end surface of the support plate to prevent the sewage from flowing out through the gap between the filter frame and the support plate, and the practicability of the device is improved.

[0011] Preferably, the sewage discharge device comprises a spiral blade, a plate type electromagnetic valve and a driving motor, a group of arc-shaped sewage discharge grooves are arranged on the lower parts of the left and right end surfaces of the treatment box respectively, the sewage discharge grooves are located at the connecting parts of the support plate and the treatment box, the spiral blades are arranged in the sewage discharge grooves, the plate type electromagnetic valves are arranged on the front parts of the sewage discharge grooves, the output ends of the plate type electromagnetic valves are communicated with the outside of the treatment box, a group of driving motors are arranged on the left and right rear end surfaces of the treatment box respectively, and the output ends of the driving motors are connected with the corresponding spiral blades; power is transmitted to the spiral blades by starting the driving motor to drive the spiral blades to rotate, the accumulated sewage in the arc-shaped sewage discharge grooves is discharged from the treatment box by the rotating spiral blades, the sewage is prevented from flowing out of the equipment from the arc-shaped sewage discharge grooves during the sewage treatment process by the plate type electromagnetic valves, and the practicability of the device is improved.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: the desulfurization wastewater is filtered through the filtering device, the filtering process is switched, the filtering device is cleaned, the influence on the filtering effect is reduced, the filtering device is cleaned through the cleaning device, the sewage is discharged from the equipment through the sewage discharge device, and the practicability of the device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is the axonometric structure schematic diagram of the utility model;

[0014] Figure 2 is the first cross section structure schematic diagram of the utility model;

[0015] Figure 3 is the second cross section structure schematic diagram of the utility model;

[0016] Figure 4 is the third cross section structure schematic diagram of the utility model;

[0017] Figure 5 is the local enlarged structure schematic diagram of the utility model;

[0018] Marked in the drawing: 1, processing box; 2, shaft base; 3, filter frame; 4, filter screen; 5, partition; 6, three-way electromagnetic valve; 7, speed reducer; 8, motor; 9, support plate; 10, speed reduction motor; 11, lead screw; 12, limit light rod; 13, horizontal moving platform; 14, brush; 15, outer sealing plate; 16, rubber sealing plate; 17, inner sealing baffle; 18, helical blade; 19, plate electromagnetic valve; 20, drive motor. DETAILED DESCRIPTION

[0019] For the convenience of understanding the present application, the present application will be described more fully below with reference to the accompanying drawings. The present application can be implemented in many different forms, and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0020] EMBODIMENT

[0021] As Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The cleaning device is installed on the filter device, and the sewage discharge device is installed on the filter device.

[0022] Firstly, the sewage is sent into the processing box 1 through the three-way electromagnetic valve 6, the three-way electromagnetic valve 6 is closed on one group of output ends, and the drive motor 20 on the side of the sewage treatment chamber in the processing box 1 is controlled to be opened, so that power is transmitted to the helical blade 18 to drive the helical blade 18 to rotate. The rotating helical blade 18 discharges the accumulated sewage in the arc-shaped sewage discharge groove from the processing box 1, then the motor 8 is opened to transmit power to the shaft base 2 through the support plate 9 to drive the filter frame 3 to rotate, so that the filter screen 4 is in a horizontal state, then the speed reduction motor 10 is opened to transmit power to the horizontal moving platform 13 through the lead screw 11 to drive the horizontal moving platform 13 to move horizontally, so that the brush 14 can clean the upper surface of the filter screen 4.

[0023] The filter device comprises a processing box 1, a shaft base 2, a filter frame 3, a filter screen 4, a partition 5 and a three-way electromagnetic valve 6. The partition 5 is installed in the middle of the processing box 1 to divide the processing box 1 into left and right two chambers. A group of shaft bases 2 is respectively installed on the upper end face of the partition 5. The filter frame 3 is connected to the side surface of the shaft base 2. The filter screen 4 is installed on the middle of the filter frame 3. The three-way electromagnetic valve 6 is installed on the upper end face of the processing box 1. The two groups of output ends of the three-way electromagnetic valve 6 are respectively communicated with the left and right two chambers in the processing box 1.

[0024] It also includes a reducer 7, a motor 8 and a support plate 9. A set of reducers 7 are installed on the left and right sides of the front end face of the processing box 1, and a motor 8 is installed on the reducer 7. The output end of the reducer 7 is connected to the rotating shaft seat 2 on its side. A set of support plates 9 are installed at an angle on the lower part of the left and right end faces inside the processing box 1. The filter frame 3 can be placed on the support plate 9.

[0025] The cleaning device includes a geared motor 10, a lead screw 11, a limiting rod 12, a transverse platform 13, and a brush 14. The geared motor 10 is installed on the left end face of the processing box 1. The lead screw 11 and two sets of limiting rods 12 are horizontally installed in the upper part of the processing box 1. The two sets of limiting rods 12 are located on the front and rear sides of the lead screw 11, respectively. The transverse platform 13 is connected to the lead screw 11 by a nut, and the two sets of limiting rods 12 pass through the front and rear of the transverse platform 13, respectively. The brush 14 is installed on the lower end face of the transverse platform 13.

[0026] It also includes an outer sealing plate 15, a rubber sealing plate 16 and an inner sealing baffle 17. A set of outer sealing plates 15 are respectively provided on the front and rear edges of the lower end of the filter frame 3. A rubber sealing plate 16 is installed on the outer side of the lower end of the filter frame 3. A set of inner sealing baffles 17 are respectively installed on the inner front and rear sides of the support plate 9. The outer sealing plate 15 can cover the inner sealing baffle 17.

[0027] The sewage discharge device includes a spiral blade 18, a plate solenoid valve 19, and a drive motor 20. A set of arc-shaped sewage discharge troughs are respectively provided on the lower part of the left and right end faces inside the treatment box 1. The sewage discharge troughs are located at the connection between the support plate 9 and the treatment box 1. The spiral blade 18 is installed in the sewage discharge trough. A plate solenoid valve 19 is installed at the front of the sewage discharge trough. The output end of the plate solenoid valve 19 is connected to the outside of the treatment box 1. A set of drive motors 20 are respectively installed on the left and right rear faces of the treatment box 1. The output end of the drive motor 20 is connected to the spiral blade 18 at the corresponding position.

[0028] The desulfurization wastewater is filtered by a filtration device, and the filtration process can be switched to facilitate cleaning of the filtration device and reduce the impact on the filtration effect. The filtration device is cleaned by a cleaning device, and the waste is discharged from the equipment by a sewage discharge device, which improves the practicality of the device.

[0029] like Figures 1 to 5As shown, this utility model discloses a desulfurization wastewater treatment device. During operation, wastewater is first fed into the treatment tank 1 via a three-way solenoid valve 6. A set of output terminals of the three-way solenoid valve 6 is closed periodically, and the drive motor 20 on the side of the treatment tank 1 where the wastewater is not being treated is turned on. Power is transmitted to the spiral blades 18, causing them to rotate. The rotating spiral blades 18 discharge the accumulated dirt from the arc-shaped drainage trough into the treatment tank 1. Then, the motor 8 is turned on, transmitting power through the support plate 9 to the rotating shaft seat 2, causing the filter frame 3 to rotate and the filter screen 4 to be in a horizontal position. Finally, the reduction motor 10 is turned on, transmitting power through the lead screw 11 to the transverse platform 13, causing the transverse platform 13 to move laterally, thereby allowing the brush 14 to clean the upper surface of the filter screen 4.

[0030] The three-way solenoid valve 6, plate solenoid valve 19, drive motor 20, geared motor 10, reducer 7 and motor 8 of the desulfurization wastewater treatment device of this utility model are commercially available. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0031] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A desulfurization wastewater treatment device; characterized in that, It includes a filtration device, a cleaning device, and a sewage discharge device. The cleaning device is installed on the filtration device, and the sewage discharge device is installed on the filtration device. The filtration device includes a processing box (1), a rotating shaft seat (2), a filter frame (3), a filter screen (4), a partition (5), and a three-way solenoid valve (6). The processing box (1) is divided into two chambers, left and right, by a partition (5) installed in the middle. A set of rotating shaft seats (2) is installed on the upper surface of the partition (5) on the left and right sides respectively. A filter frame (3) is connected to the side of the rotating shaft seat (2). A filter screen (4) is installed in the middle of the upper part of the filter frame (3). A three-way solenoid valve (6) is installed on the upper surface of the processing box (1). The two output ends of the three-way solenoid valve (6) are connected to the interior of the left and right chambers of the processing box (1) respectively.

2. The desulfurization wastewater treatment device as described in claim 1, characterized in that, It also includes a reducer (7), a motor (8) and a support plate (9). A set of reducers (7) is installed on the left and right sides of the front end of the processing box (1). A motor (8) is installed on the reducer (7). The output end of the reducer (7) is connected to the rotating shaft seat (2) on its side. A set of support plates (9) is installed at an angle on the lower part of the left and right ends of the processing box (1). The filter frame (3) can be placed on the support plate (9).

3. The desulfurization wastewater treatment device as described in claim 2, characterized in that, The cleaning device includes a geared motor (10), a lead screw (11), a limit rod (12), a transverse platform (13), and a brush (14). The geared motor (10) is installed on the left end face of the processing box (1). The lead screw (11) and two sets of limit rods (12) are horizontally installed in the upper part of the processing box (1). The two sets of limit rods (12) are located on the front and rear sides of the lead screw (11), respectively. The transverse platform (13) is connected to the lead screw (11) by a nut, and the two sets of limit rods (12) pass through the front and rear parts of the transverse platform (13), respectively. The brush (14) is installed on the lower end face of the transverse platform (13).

4. The desulfurization wastewater treatment device as described in claim 3, characterized in that, It also includes an outer sealing plate (15), a rubber sealing plate (16) and an inner sealing baffle (17). A set of outer sealing plates (15) are respectively provided on the front and rear edges of the lower end of the filter frame (3). A rubber sealing plate (16) is installed on the outer side of the lower end of the filter frame (3). A set of inner sealing baffles (17) is respectively installed on the inner front and rear sides of the support plate (9). The outer sealing plate (15) can cover the inner sealing baffle (17).

5. The desulfurization wastewater treatment device as described in claim 4, characterized in that, The sewage discharge device includes a spiral blade (18), a plate solenoid valve (19) and a drive motor (20). A set of arc-shaped sewage discharge troughs are respectively provided on the lower part of the left and right end faces of the treatment box (1). The sewage discharge troughs are located at the connection between the support plate (9) and the treatment box (1). The spiral blade (18) is installed in the sewage discharge trough. The plate solenoid valve (19) is installed at the front of the sewage discharge trough. The output end of the plate solenoid valve (19) is connected to the outside of the treatment box (1). A set of drive motors (20) are respectively installed on the left and right rear faces of the treatment box (1). The output end of the drive motor (20) is connected to the spiral blade (18) at its corresponding position.

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