A treatment device for reducing the influence of dust on desulfurization slurry

Abstract

The utility model relates to desulfurization dust removal device technical field, and disclose a kind of processing device for reducing dust influence on desulfurization slurry, the device is mutually coordinated by structure between, realize the dynamic detection and grading treatment of desulfurization absorption tower import flue gas dust;When dust is excessive, automatic start spray pretreatment, reduce the dust amount of entering slurry, guarantee desulfurization efficiency and gypsum quality;Setting up receiving component and filter core carry out recovery and purification to spray wastewater, reduce water resource waste;Through water storage tank and water pump, realize the recycling of water, combine turbidity detection intelligent judgment water quality condition, ensure that circulating water is repeatedly used under qualified condition;When water quality deteriorates, promptly switch to new water source and discharge sewage, effectively avoid system blockage and efficiency decline. Overall, the device gives consideration to desulfurization efficiency promotion, water resource conservation and system stability, has stronger practical value and environmental benefit.

Description

Technical Field

[0001] This utility model relates to the technical field of desulfurization and dust removal devices, specifically to a treatment device for reducing the impact of dust on desulfurization slurry. Background Technology

[0002] Wet desulfurization technology is widely used in flue gas treatment in industries such as coal-fired power plants, metallurgy, and building materials. Its core equipment is the desulfurization absorption tower. The desulfurization absorption tower removes harmful gases such as sulfur dioxide by ensuring sufficient contact between the absorption slurry and the flue gas, thereby achieving the goals of energy conservation, emission reduction, and environmental protection. However, a large amount of dust is often carried at the inlet flue of the desulfurization absorption tower. If this dust enters the absorption tower directly without effective treatment, it will not only increase the turbidity of the slurry and affect the gas-liquid reaction efficiency, but also lead to a decline in the quality of gypsum by-products, affecting their subsequent utilization value. At the same time, excessive dust will also accelerate the deposition and blockage of the slurry, increase operating and maintenance costs, and reduce the overall stability of the equipment operation.

[0003] In existing technologies, to reduce the impact of dust on desulfurization efficiency and slurry quality, measures such as adding dust collectors, optimizing bag filters or electrostatic precipitators, and installing spray devices at the inlet are commonly adopted. Although these methods have a certain effect on dust reduction, some shortcomings still exist. It is difficult to completely prevent dust from being carried into the absorption tower at the front end of the dust collector, and dust impacts may still occur when operating conditions fluctuate.

[0004] Therefore, in view of the above, this application proposes a treatment device to reduce the impact of dust on desulfurization slurry. It can automatically start spraying for pretreatment when the dust concentration exceeds the standard, and at the same time collect, filter and recycle the spray water, and monitor the quality of the circulating water through turbidity detection, thereby achieving efficient control of dust, reducing the impact on the quality of desulfurization slurry and gypsum by-products, and taking into account the needs of water conservation and environmental protection. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a treatment device for reducing the impact of dust on desulfurization slurry, thus solving the problems mentioned in the background section.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A treatment device for reducing the impact of dust on desulfurization slurry, comprising:

[0008] The dust collector is installed at the inlet flue of the desulfurization absorption tower;

[0009] The spray assembly is installed inside the inlet flue of the desulfurization absorption tower at the rear of the dust collector;

[0010] The receiving component is located directly below the spray component and is connected to the outer surface of the inlet flue of the desulfurization absorption tower.

[0011] The filter element is located inside the receiving component;

[0012] A water storage tank is connected to the end of the receiving component that is furthest from the spraying component;

[0013] A water pump, the outlet of which is connected to the spray assembly via a first pipe, and a first solenoid valve is provided on the surface of the first pipe.

[0014] A water pump is connected to a water storage tank via a second pipe, and a second solenoid valve is installed on the second pipe.

[0015] The sampling component is located on the second pipeline between the second solenoid valve and the water pump.

[0016] A turbidity sensor is located at the sampling component.

[0017] Optionally, the inner cavity of the inlet flue of the desulfurization absorption tower is recessed downwards on the side symmetrical to the spray assembly to form a groove.

[0018] Optionally, the receiving component includes a connecting pipe, a trapezoidal pipe, and an inlet pipe;

[0019] The top of the connecting pipe is connected to the groove.

[0020] The top of the trapezoidal tube is connected to the bottom of the connecting tube, and the filter element is disposed inside the trapezoidal tube;

[0021] The top of the discharge pipe is connected to the bottom of the trapezoidal pipe, and the bottom of the discharge pipe is connected to the top of the water storage tank.

[0022] Optionally, a third solenoid valve may be provided on the connecting pipe.

[0023] Optionally, a filter screen is installed inside the water storage tank, and a drain pipe is connected to the bottom of the water storage tank, with a fourth solenoid valve installed on the drain pipe.

[0024] Optionally, the sampling assembly includes a three-way valve, an inlet pipe, a transparent measuring cell, an outlet pipe, and a control valve;

[0025] The three-way valve is installed on the second pipe;

[0026] One end of the access pipe is connected to one end of the three-way valve;

[0027] The transparent measuring cell is connected to the other end of the access pipe;

[0028] One end of the discharge pipe is connected to the side of the transparent measuring pool away from the inlet pipe, and the other end is connected to the second pipe. The turbidity sensor is installed on the outer wall of the transparent measuring pool for optical detection.

[0029] The control valve is installed on the discharge pipe.

[0030] This utility model provides a treatment device for reducing the impact of dust on desulfurization slurry, which has the following beneficial effects:

[0031] 1. This device, through the coordinated operation of a dust meter, spray assembly, receiving assembly, filter element, water storage tank, water pump, pumping pump, sampling assembly, and turbidity sensor, achieves dynamic detection and graded treatment of dust in the flue gas inlet of the desulfurization absorption tower. When dust levels exceed the standard, it automatically activates spray pretreatment to reduce the amount of dust entering the slurry, ensuring desulfurization efficiency and gypsum quality. The receiving assembly and filter element are used to recover and purify spray wastewater, reducing water waste. Water is recycled through the water storage tank and pumping pump, and turbidity detection intelligently judges water quality, ensuring that the circulating water is reused under qualified conditions. When water quality deteriorates, it promptly switches to a new water source and discharges wastewater, effectively preventing system blockage and efficiency decline. Overall, this device balances improved desulfurization efficiency, water conservation, and system stability, possessing strong practical value and environmental benefits. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the structure of this utility model.

[0033] In the diagram: 1. Dust collector; 2. Spray assembly; 3. Receiving assembly; 31. Connecting pipe; 32. Trapezoidal pipe; 33. Discharge pipe; 34. Third solenoid valve; 4. Filter element; 5. Water storage tank; 51. Filter screen; 52. Drain pipe; 53. Fourth solenoid valve; 6. Water pump; 61. First pipeline; 62. First solenoid valve; 7. Water pump; 71. Second pipeline; 72. Second solenoid valve; 8. Sampling assembly; 81. Three-way valve; 82. Inlet pipe; 83. Transparent measuring cell; 84. Discharge pipe; 85. Control valve; 9. Turbidity sensor; 10. Groove. Detailed Implementation

[0034] In order to make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0035] In the description of this utility model, it should be understood that the terms "lateral", "longitudinal", "end", "edge", "sidewall", "upper", "lower", "upper part", "lower part", "directly above", "surface", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", "end", "head", "tail", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the technical solution of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0036] This application proposes a treatment device to reduce the impact of dust on desulfurization slurry, as detailed below:

[0037] For reference Figure 1 This application mainly consists of a dust collector 1, a spray assembly 2, a receiving assembly 3, a filter element 4, a water storage tank 5, a water pump 6, a water pump 7, a sampling assembly 8, and a turbidity sensor 9. The components work together to effectively reduce the impact of excessive dust at the inlet of the desulfurization absorption tower on desulfurization efficiency, slurry quality, and gypsum quality.

[0038] For reference Figure 1 Dust meter 1 is installed at the inlet flue of the desulfurization absorption tower to detect whether the dust exceeds the normal standard.

[0039] For reference Figure 1 The spray assembly 2 is installed inside the inlet flue of the desulfurization absorption tower at the rear end of the dust collector 1. The water outlet of the water pump 6 is connected to the spray assembly 2 through the first pipe 61. The surface of the first pipe 61 is provided with a first solenoid valve 62. When the first solenoid valve 62 is opened, the water pump 6 is working and water is sent towards the spray assembly 2.

[0040] Furthermore, the device is connected to a control system. When it is necessary to start the operation of the spray assembly 2, the dust meter 1 is used first. When the dust meter 1 detects that the dust exceeds the normal standard, the signal is transmitted to the control system for processing, which then causes the water pump 6 to start running, so that water is sprayed out from the spray assembly 2 to pre-treat the flue gas dust.

[0041] It should be noted that the spray assembly 2 includes a delivery pipe and a spray head, which are common existing structures, and will not be described in detail in this application.

[0042] For reference Figure 1When the spray assembly 2 is performing spraying work, a receiving assembly 3 is set at the bottom of the spray assembly 2. Furthermore, the receiving assembly 3 is set directly below the spray assembly 2 and is connected to the outer surface of the flue gas inlet of the desulfurization absorption tower. It includes a connecting pipe 31, a trapezoidal pipe 32 and an inlet pipe 33. The top of the connecting pipe 31 is connected to the groove 10. The top of the trapezoidal pipe 32 is connected to the bottom of the connecting pipe 31, and the filter element 4 is set inside the trapezoidal pipe 32. The top of the inlet pipe 33 is connected to the bottom of the trapezoidal pipe 32, and the bottom of the inlet pipe 33 is connected to the top of the water storage tank 5.

[0043] It should be noted that the inner cavity of the inlet flue of the desulfurization absorption tower is recessed downward on the side symmetrical to the spray assembly 2 to form a groove 10. The setting of the groove 10 makes it easier to receive the water coming down from the spray assembly 2.

[0044] Specifically, when the water pump 6 starts working via the control system, the control system synchronously operates the third solenoid valve 34 on the connecting pipe 31 to open, thereby catching the falling water. The water enters the trapezoidal pipe 32 through the connecting pipe 31 to expand the contact surface. The filter element 4, located inside the trapezoidal pipe 32 within the receiving assembly 3, filters the wastewater from the water spray settling. The water filtered by the filter element 4 enters the discharge pipe 33 and flows into the water storage tank 5. When the dust meter 1 detects that the dust level does not exceed the standard, the control system receives a signal, at which point the water pump 6 stops working, and the first solenoid valve 62 closes.

[0045] To prevent water waste in the storage tank 5, a water pump 7, a sampling component 8, and a turbidity sensor 9 are further provided. Specifically, the water pump 7 is connected to the storage tank 5 via a second pipe 71, and its output is connected to a first pipe 61. A second solenoid valve 72 is installed on the second pipe 71. Electromagnetic flow meters are installed on the pipes surrounding the water pump 6 to measure the volumetric flow rate or cumulative water consumption of the input water source. The measurement data from the electromagnetic flow meters is synchronously transmitted to the control system. Based on the data statistics of the control system, the volume of filtered water received in the storage tank 5 is calculated. If the dust meter 1 detects dust exceeding the standard again, the water pump 6 can be shut down. Instead, the water pump 7 and the second solenoid valve 72 are opened to introduce water from the storage tank 5 into the spray component 2 for wastewater treatment. The receiving component 3 operates similarly to the water pump 6, and will not be described in detail here.

[0046] After repeated use, the water concentration in storage tank 5 increases, and the filtration effect of filter element 4 decreases. To enable the water pump 6 to restart when the concentration is high, a sampling assembly 8 and a turbidity sensor 9 are used. The sampling assembly 8 includes a three-way valve 81, an inlet pipe 82, a transparent measuring cell 83, a discharge pipe 84, and a control valve 85. The three-way valve 81 is installed on the second pipe 71. One end of the inlet pipe 82 is connected to one end of the three-way valve 81. The transparent measuring cell 83 is connected to the other end of the inlet pipe 82. One end of the discharge pipe 84 is connected to the side of the transparent measuring cell 83 away from the inlet pipe 82, and the other end is connected to the second pipe 71. The turbidity sensor 9 is installed on the outer wall of the transparent measuring cell 83 for optical detection. The control valve 85 is installed on the discharge pipe 84. The three-way valve 81 is used to change the initial delivery... The flow direction is changed so that the original flow into the first pipe 61 is redirected to the inlet pipe 82. The inlet pipe 82 is then timed by the control system to a timed switch and then closed, for example, the control time is set to 15 seconds, and the flow direction returns to normal. The inlet pipe 82 discharges the introduced circulating water into the transparent measuring tank 83. During the discharge, the control valve 85 is closed, and the three-way valve 81 resumes its original flow direction after the timer expires. During this period, the water pump 7 stops working, and the turbidity sensor 9 starts working. The water flows through the transparent measuring tank 83 to detect whether the turbidity exceeds the standard. After the detection is completed, the control valve 85 opens, and the water in the transparent measuring tank 83 is discharged. Furthermore, if the turbidity exceeds the standard, the water pump 6 will operate when the dust meter 1 transmits a signal next time; if the turbidity does not exceed the standard, the water pump 7 will operate.

[0047] A drain pipe 52 is connected to the bottom of the water storage tank 5, and a fourth solenoid valve 53 is installed on the drain pipe 52. When the water pump 6 restarts, the fourth solenoid valve 53 can be opened to discharge the sewage in the water storage tank 5 from the drain pipe 52. In order to prevent dirt from clogging the outlet during discharge, a filter screen 51 is further installed inside the water storage tank 5 at the outlet position for further internal protection.

[0048] In this invention, the working steps of the device are as follows:

[0049] First, when the dust meter 1 detects that the dust in the flue gas inlet of the desulfurization absorption tower exceeds the normal standard, it transmits the signal to the control system. The control system starts the water pump 6 and opens the first solenoid valve 62, and delivers water to the spray assembly 2 through the first pipeline 61. The spray head inside the spray assembly 2 performs pre-spraying treatment on the flue gas.

[0050] Secondly, the sprayed water droplets fall onto the receiving component 3 below the spray assembly 2, and flow into the trapezoidal pipe 32 through the connecting pipe 31. The water flow expands the contact surface within the trapezoidal pipe 32 and passes through the filter element 4 installed therein to filter impurities. The purified water flows into the water storage tank 5 through the discharge pipe 33 for storage. During this process, the control system simultaneously opens the third solenoid valve 34 to ensure that the rainwater smoothly enters the receiving component 3.

[0051] Then, when the dust meter 1 detects excessive dust levels again, the control system determines whether there is recyclable water in the water storage tank 5 based on the electromagnetic flow meter and statistical data. If so, the water pump 6 is stopped, and the water pump 7 is started and the second solenoid valve 72 is opened to introduce the recyclable water in the water storage tank 5 into the spray assembly 2 through the second pipe 71 for repeated spraying, reducing the waste of fresh water. At the same time, the sampling assembly 8 and the turbidity sensor 9 periodically extract the recyclable water, and the turbidity is optically detected by the transparent measuring cell 83 to determine whether the water quality meets the usage standards.

[0052] Finally, when the turbidity sensor 9 detects that the circulating water has exceeded the standard, or the filtration effect of the filter element 4 has decreased, the control system will restart the water pump 6 when the dust exceeds the standard again, and at the same time open the fourth solenoid valve 53 to discharge the high-concentration sewage in the water storage tank 5 through the drain pipe 52. The filter screen 51 at the outlet can prevent blockage during the discharge process.

[0053] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments, and various changes and modifications can be made without departing from the spirit and scope of this utility model. All such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A treatment device for reducing the impact of dust on desulfurization slurry, characterized in that: include; A dust collector (1) is installed at the inlet flue of the desulfurization absorption tower; The spray assembly (2) is installed inside the inlet flue of the desulfurization absorption tower at the rear end of the dust collector (1); The receiving component (3) is located directly below the spray component (2) and is connected to the outer surface of the inlet flue of the desulfurization absorption tower; The filter element (4) is installed inside the receiving component (3); A water storage tank (5) is connected to the end of the receiving component (3) away from the spraying component (2); The water pump (6) is connected to the spray assembly (2) through the first pipe (61) at its outlet end. The surface of the first pipe (61) is provided with a first solenoid valve (62). A water pump (7) is connected to a water storage tank (5) via a second pipe (71), and a second solenoid valve (72) is installed on the second pipe (71). The sampling component (8) is located between the second solenoid valve (72) and the water pump (7) and is installed on the second pipe (71); A turbidity sensor (9) is located at the sampling assembly (8).

2. The treatment device for reducing the impact of dust on desulfurization slurry according to claim 1, characterized in that: The inner cavity of the flue gas inlet of the desulfurization absorption tower is recessed downward on the side of the spray assembly (2) to form a groove (10).

3. The treatment device for reducing the impact of dust on desulfurization slurry according to claim 1, characterized in that: The receiving component (3) includes a connecting pipe (31), a trapezoidal pipe (32), and an inlet pipe (33); The top of the connecting pipe (31) is connected to the groove (10); The top of the trapezoidal tube (32) is connected to the bottom of the connecting tube (31), and the filter element (4) is disposed inside the trapezoidal tube (32); The top of the drain pipe (33) is connected to the bottom of the trapezoidal pipe (32), and the bottom of the drain pipe (33) is connected to the top of the water storage tank (5).

4. The treatment device for reducing the impact of dust on desulfurization slurry according to claim 3, characterized in that: A third solenoid valve (34) is provided on the connecting pipe (31).

5. The treatment device for reducing the impact of dust on desulfurization slurry according to claim 1, characterized in that: The water storage tank (5) is equipped with a filter screen (51) inside, and a drain pipe (52) is connected to the bottom of the water storage tank (5). A fourth solenoid valve (53) is installed on the drain pipe (52).

6. The treatment device for reducing the impact of dust on desulfurization slurry according to claim 1, characterized in that: The sampling assembly (8) includes a three-way valve (81), an inlet pipe (82), a transparent measuring cell (83), an outlet pipe (84), and a control valve (85). The three-way valve (81) is installed on the second pipe (71); One end of the access pipe (82) is connected to one end of the three-way valve (81); The transparent measuring cell (83) is connected to the other end of the access pipe (82); One end of the discharge pipe (84) is connected to the side of the transparent measuring pool (83) away from the inlet pipe (82), and the other end is connected to the second pipe (71). The turbidity sensor (9) is installed on the outer wall of the transparent measuring pool (83) for optical detection. The control valve (85) is installed on the discharge pipe (84).

Images