Chemical toxic gas environmental protection treatment device

Abstract

The utility model relates to chemical industry environmental protection equipment technical field especially relates to a kind of chemical industry toxic gas environmental protection treatment device, including spray tower etc.;The top of spray tower is provided with exhaust port, and fixedly connected with waste gas pipe on spray tower, and one end of waste gas pipe is inserted into spray tower interior and fixedly connected with buffer bag, multiple gas outlets are opened on buffer bag, and the two sides of buffer bag close to gas outlet are connected with plug by spring, and the lower end of spray tower is fixedly connected with medicine box, and the top of medicine box is provided with dosing hopper, and water pump is installed on one side of medicine box, and water pump is provided with flow guide pipe, and fixedly connected with spray pipe on flow guide pipe. The utility model is provided with buffer bag with plug structure in waste gas pipe, can effectively buffer the fluctuation of waste gas flow and pressure generated in chemical production process, avoids the waste gas flow rate too fast, difficult to realize uniform contact reaction with absorption liquid, leads to insufficient toxic gas treatment.

Description

Technical Field

[0001] This utility model relates to the field of chemical environmental protection equipment technology, and in particular to an environmental protection treatment device for toxic chemical gases. Background Technology

[0002] Existing environmental protection devices for treating toxic chemical gases, especially spray towers, which are common treatment equipment, have significant defects in terms of the exhaust gas inlet. High-speed exhaust gas directly enters the spray tower, making it difficult to achieve uniform contact and reaction with the absorbent liquid. This may result in insufficient treatment of toxic gases and failure to stably meet emission standards. Therefore, it is particularly important to design an environmental protection device for treating toxic chemical gases. Utility Model Content

[0003] In order to overcome the shortcomings of existing chemical toxic gas treatment devices that do not adequately treat toxic gases, the purpose of this utility model is to provide an environmentally friendly chemical toxic gas treatment device.

[0004] The technical solution is as follows: an environmental protection device for treating toxic chemical gases, including a spray tower, an exhaust port at the top of the spray tower, a waste gas pipe fixedly connected to the spray tower, one end of the waste gas pipe extending into the interior of the spray tower and fixedly connected to a buffer bag, multiple air outlets on the buffer bag, and plugs connected to both sides of the buffer bag near the air outlets by springs, a medicine tank fixedly connected to the lower end of the spray tower, a dosing hopper at the top of the medicine tank, a water pump installed on one side of the medicine tank, a guide pipe on the water pump, a spray pipe fixedly connected to the guide pipe, one end of the spray pipe extending into the interior of the spray tower and connected to multiple spiral nozzles.

[0005] As an improvement to the above solution, a viewing window is provided on the spray tower.

[0006] As an improvement to the above solution, the spray tower has multiple filter screens fixedly connected inside.

[0007] As an improvement to the above solution, a telescopic rod is fixedly connected to the blocked side, the telescopic rod is slidably connected to the buffer bag, and a spring surrounds the periphery of the telescopic rod.

[0008] As an improvement to the above scheme, the guide pipe is fixedly connected to two spray pipes, which are distributed vertically, and the spray pipes have multiple spiral nozzles arranged in a ring.

[0009] As an improvement to the above scheme, a swirl plate is rotatably connected to the upper end of the spray tower.

[0010] The beneficial effects are: by setting a buffer bag with a blocking structure in the waste gas pipe, this utility model can effectively buffer the fluctuations in the flow rate and pressure of waste gas generated during the chemical production process, and avoid the inadequate treatment of toxic gases due to the waste gas flow rate being too fast and it being difficult to achieve uniform contact reaction with the absorbent liquid. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model.

[0012] Figure 2 This is a cross-sectional view of the present invention.

[0013] Figure 3 This is a schematic diagram of the structure of the buffer bag, plug, and spring of this utility model.

[0014] Figure 4 This is a schematic diagram of the structure of the spray pipe, spiral nozzle and exhaust port of this utility model.

[0015] The markings in the diagram are as follows: 1-Spray tower, 101-Viewing window, 2-Medicine tank, 3-Dosing hopper, 4-Water pump, 5-Guide pipe, 6-Exhaust gas pipe, 7-Buffer bag, 8-Block, 9-Spring, 10-Telescopic rod, 11-Spray pipe, 12-Spiral nozzle, 13-Swirl plate, 14-Exhaust port, 15-Filter screen. Detailed Implementation

[0016] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0017] Example: An environmentally friendly treatment device for toxic chemical gases, such as... Figures 1-4 As shown, the system includes a spray tower 1, with an exhaust port 14 at the top. A waste gas pipe 6 is fixedly connected to the spray tower 1, with one end of the waste gas pipe 6 extending into the interior of the spray tower 1 and fixedly connected to a buffer bag 7. The buffer bag 7 has multiple air outlets, and plugs 8 are connected to both sides of the buffer bag 7 near the air outlets via springs 9. A medicine tank 2 is fixedly connected to the lower end of the spray tower 1, with a dosing hopper 3 at the top of the medicine tank 2. A water pump 4 is installed on one side of the medicine tank 2, and the water pump 4 has a guide pipe 5. A spray pipe 11 is fixedly connected to the guide pipe 5, with one end of the spray pipe 11 extending into the interior of the spray tower 1 and connected to multiple spiral nozzles 12. The number of spray pipes 11 corresponds to the number of filter screens 15, and each spray pipe 11 is located above each filter screen 15. The design of the spray pipe 11 array with multiple spiral nozzles 12 allows the absorbent liquid to be sprayed evenly in a mist form inside the spray tower 1, improving the reaction efficiency and the treatment effect of toxic gases.

[0018] like Figure 1 As shown, a viewing window 101 is provided on the spray tower 1 to facilitate the operator's observation of the working conditions inside the spray tower 1, such as the spraying status of the absorbent liquid and the reaction between the waste gas and the absorbent liquid, so as to promptly identify problems and make adjustments.

[0019] like Figure 2 As shown, multiple filter screens 15 are fixedly connected inside the spray tower 1. The filter screens 15 can filter the waste residue generated during the reaction of waste gas and absorption liquid, and prevent the waste residue from falling into the medicine tank 2 and contaminating the absorption liquid.

[0020] like Figure 3 As shown, a telescopic rod 10 is fixedly connected to one side of the blockage 8. The telescopic rod 10 is slidably connected to the buffer bag 7. The spring 9 surrounds the periphery of the telescopic rod 10. The setting of the telescopic rod 10 further ensures the stability of the blockage 8 during movement, prevents the blockage 8 from shifting or getting stuck when subjected to air pressure, and ensures that the opening and closing of the air outlet is smooth and accurate.

[0021] like Figure 4 As shown, a swirl plate 13 is fixedly connected to the upper end of the spray tower 1. The swirl plate can cause the rising airflow to rotate, prolong the residence time of the exhaust gas in the spray tower 1, enhance the mixing degree of the exhaust gas and the absorption liquid, and further improve the treatment effect.

[0022] Before the device is put into operation, the absorbent is poured into the reagent tank 2 through the dosing hopper 3. Then, the water pump 4 is started to extract the absorbent from the reagent tank 2. The absorbent is then transported to the spray pipe 11 through the guide pipe 5. The absorbent is then sprayed into the spray tower 1 in a uniform mist through the spiral nozzles 12 on the spray pipe 11. The sprayed absorbent eventually falls back into the reagent tank 2 and can be recycled. At the same time, the waste gas generated during the chemical production process is discharged into the buffer bag 7 through the waste gas pipe 6. In the initial stage, because the waste gas content is small, the contents of the buffer bag 7 are relatively small. When the air pressure is too low to stretch the spring 9, the blockage 8 blocks the air outlet. As the gas gradually accumulates in the buffer bag 7, the air pressure continues to rise. When the air pressure reaches the threshold, it overcomes the elasticity of the spring 9, causing the spring 9 to stretch. The exhaust gas pushes the blockage 8 away from the air outlet, allowing the exhaust gas to enter the spray tower 1 evenly through the air outlet. The rising exhaust gas comes into even contact with the falling absorbent liquid. The toxic substances in the exhaust gas react with the absorbent liquid and are converted into harmless substances. The treated gas continues to rise and is finally discharged from the exhaust port 14.

[0023] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A chemical toxic gas environmental protection treatment device, comprising a spray tower (1), characterized in that: The top of the spray tower (1) is provided with an exhaust port (14). An exhaust pipe (6) is fixedly connected to the spray tower (1). One end of the exhaust pipe (6) extends into the interior of the spray tower (1) and is fixedly connected with a buffer bag (7). Multiple air outlets are opened on the buffer bag (7). The two sides of the buffer bag (7) near the air outlets are connected with plugs (8) by springs (9). A medicine tank (2) is fixedly connected to the bottom of the spray tower (1). A dosing hopper (3) is provided at the top of the medicine tank (2). A water pump (4) is installed on one side of the medicine tank (2). A guide pipe (5) is provided on the water pump (4). A spray pipe (11) is fixedly connected to the guide pipe (5). One end of the spray pipe (11) extends into the interior of the spray tower (1) and is connected with multiple spiral nozzles (12).

2. The environmental protection device for treating toxic chemical gases as described in claim 1, characterized in that: A viewing window (101) is provided on the spray tower (1).

3. The environmental protection device for treating toxic chemical gases as described in claim 2, characterized in that: The spray tower (1) has multiple filter screens (15) fixedly connected inside.

4. The environmental protection device for treating toxic chemical gases as described in claim 3, characterized in that: A telescopic rod (10) is fixedly connected to one side of the blockage (8). The telescopic rod (10) is slidably connected to the buffer bag (7). A spring (9) surrounds the periphery of the telescopic rod (10).

5. The environmental protection device for treating toxic chemical gases as described in claim 4, characterized in that: The number of spray pipes (11) corresponds to the number of filter screens (15), and each spray pipe (11) is located above each filter screen (15).

6. The environmental protection device for treating toxic chemical gases as described in claim 5, characterized in that: A swirl plate (13) is rotatably connected to the upper end of the spray tower (1).

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