Dye production waste gas treatment device

Abstract

The utility model belongs to the technical field of waste gas treatment, and particularly relates to a dye production waste gas treatment device which comprises a spray tower, a gas inlet pipeline is connected to the outer wall of the bottom end of the spray tower, an installation cavity is fixedly connected with the gas inlet pipeline, a sliding groove is formed in one end of the installation cavity, a sliding block is installed in the sliding groove in a sliding mode, and a floating rod is fixedly connected to one side of the sliding block. A spring is fixedly connected between the mounting cavity and the floating rod, an electrode plate is mounted on the outer wall of one end of the floating rod, and an electrode slice is mounted on the inner wall of the mounting cavity; waste gas flows in a gas inlet pipeline and pushes a floating plate to move downwards, the floating plate drives a floating rod and a sliding block to slide in a sliding groove of a mounting cavity, meanwhile, a spring is stretched, when an electrode plate makes contact with an electrode slice, an electric signal is generated and transmitted to a controller, the controller opens a spraying assembly, and automatic control over starting of the spraying assembly is achieved; the waste gas treatment effect is improved, and the environmental pollution is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas treatment, in particular to a waste gas treatment device for dye production. Background Art

[0002] Dyes are organic compounds that can color fibers or other materials. During the dye production process, many dye synthesis reactions will produce volatile by-products, which will evaporate to form waste gas. If discharged directly, it will pollute the environment. Therefore, a waste gas treatment device is needed.

[0003] A Chinese patent with announcement number CN214486208U discloses a waste gas treatment device for dye intermediate production samples, including a base, a carrying plate is arranged inside the base, a water tank is fixed on the top of the carrying plate, a shell is fixed on the top of the water tank, an air inlet pipe is arranged at the bottom of the shell, a placement plate is arranged inside the shell, a spray pipe is arranged above the placement plate, spray heads are distributed at the bottom of the spray pipe, a circulating water pump is arranged on the top of the water tank, and an exhaust pipe is arranged at one end of the photolysis device. The utility model makes the purification of waste gas more comprehensive and thorough.

[0004] However, there are still some problems with the above-mentioned waste gas treatment device. In the prior art, the waste gas cannot be sprayed in time, which will cause part of the waste gas to be discharged directly without treatment, causing environmental pollution and affecting the effect of waste gas treatment. Therefore, a dye production waste gas treatment device is proposed to address the above problems. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art and solve the problems raised in the background technology, the utility model proposes a dye production waste gas treatment device.

[0006] The technical solution adopted by the utility model to solve its technical problems is: a dye production waste gas treatment device described in the utility model comprises a spray tower, an air intake pipe is connected to the outer wall of the bottom end of the spray tower, and an automatic spray assembly is installed inside the bottom end of the air intake pipe. The automatic spray assembly comprises an installation cavity, and the installation cavity is fixedly connected to the air intake pipe. A slide groove is opened inside one end of the installation cavity, and a slider is slidably installed inside the slide groove. A float rod is fixedly connected to one side of the slider, and one end of the float rod passes through the installation cavity. The other end of the float rod extends to the interior of the air intake pipe and is fixedly connected to a float plate. Two springs are fixedly connected equidistantly between the inner wall of the installation cavity and the outer wall of the float rod, an electrode plate is installed on the outer wall of one end of the float rod, and an electrode sheet is installed on the inner wall of the installation cavity, and the electrode plate and the electrode sheet are on the same horizontal line. The spring has a high elastic coefficient, which realizes the automatic control of the start-up of the spray assembly, improves the effect of waste gas treatment, and reduces environmental pollution.

[0007] Preferably, a support column is fixedly connected to the inner wall of one end of the air intake pipe, a negative pressure motor is installed on the top side of the support column, and three fan blades are equidistantly installed on the output end of the negative pressure motor to ensure that the exhaust gas smoothly enters the interior of the air intake pipe.

[0008] Preferably, a liquid storage tank is installed on one side of the spray tower, a liquid outlet pipe is connected to the inside of the liquid storage tank, a pump is installed on the outer wall of the liquid outlet pipe, two annular tubes are equidistantly installed on the outer wall of the liquid outlet pipe, the inner wall of the spray tower is equidistantly installed on the annular tubes, a number of nozzles are equidistantly installed inside the annular tubes, and a packing layer is installed on the bottom side of the annular tube inside the spray tower, which captures particulate matter in the exhaust gas by spraying a small amount of liquid to play a role in preliminary purification, and the packing layer increases the contact area between the exhaust gas and the spray liquid, thereby improving the treatment effect.

[0009] Preferably, a filter plate is installed on the inner wall of the bottom end of the spray tower, just below the air inlet pipe. A reflux pipe is connected to the bottom side of the spray tower. One end of the reflux pipe is connected to the liquid storage tank. A circulating pump is installed on the outer wall of the reflux pipe to achieve recycling of the waste liquid after filtration and save water resources.

[0010] Preferably, the top side of the spray tower is equipped with a connecting pipe, one end of the connecting pipe is connected to a pretreatment box, one side of the pretreatment box is connected to a delivery pipe, one end of the delivery pipe is connected to an activated carbon box, and one side of the activated carbon box is connected to an emission pipe, so as to further remove harmful substances in the exhaust gas and ensure that the exhaust gas is discharged in compliance with the standards.

[0011] Preferably, a movable door is installed on one side of the spray tower through a hinge, and a handle is fixedly connected to one side of the movable door. The electrode plate, electrode sheet and pump are electrically connected to the controller inside the device, and the controller is used for signal transmission between the electrode plate and the electrode sheet, and for operating control of the pump, so as to realize automatic control of the device and improve operational stability.

[0012] The utility model is beneficial in that:

[0013] 1. In the utility model, the exhaust gas flows in the air intake pipe, pushing the floating plate downward, and the floating plate drives the floating rod and the slider to slide in the slide groove of the installation cavity, and at the same time stretches the spring, so that when the electrode plate contacts the electrode sheet, an electrical signal is generated and transmitted to the controller, and the controller turns on the spray assembly, realizing the automatic control of the start of the spray assembly, improving the effect of exhaust gas treatment, and reducing environmental pollution;

[0014] 2. After the utility model is treated by spraying and packing layers, the particulate matter and liquid droplets in the exhaust gas are intercepted and filtered by the filter plate, and the used spray liquid is left at the bottom of the spray tower, and finally drawn back by the circulation pump through the reflux pipe and re-enters the liquid storage tank for recycling, which helps to save water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 This is a schematic diagram of the main structure of the utility model from the middle axis side view;

[0017] Figure 2 It is a schematic diagram of the structure of the automatic spray assembly;

[0018] Figure 3 It is a schematic diagram of the internal structure of the spray tower;

[0019] Figure 4 for Figure 3 A schematic diagram of the enlarged structure of part A.

[0020] In the figure: 1. spray tower; 2. air inlet pipe; 3. installation cavity; 4. slide; 5. float rod; 6. slider; 7. float plate; 8. spring; 9. electrode plate; 10. electrode sheet; 11. support column; 12. negative pressure motor; 13. fan blade; 14. liquid storage tank; 15. liquid outlet pipe; 16. pump; 17. annular pipe; 18. nozzle; 19. packing layer; 20. filter plate; 21. reflux pipe; 22. circulation pump; 23. connecting pipe; 24. pretreatment box; 25. delivery pipe; 26. activated carbon box; 27. discharge pipe; 28. movable door; 29. ​​handle. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figure 1-3As shown, a dye production waste gas treatment device comprises a spray tower 1, an air intake pipe 2 is connected to the outer wall of the bottom end of the spray tower 1, an automatic spray assembly is installed inside the bottom end of the air intake pipe 2, the automatic spray assembly comprises an installation cavity 3, the installation cavity 3 is fixedly connected to the air intake pipe 2, a slide groove 4 is opened inside one end of the installation cavity 3, a slider 6 is slidably installed inside the slide groove 4, a float rod 5 is fixedly connected to one side of the slider 6, the other end of the float rod 5 extends to the inside of the air intake pipe 2 and is fixedly connected to a float plate 7, two springs 8 are equidistantly fixedly connected between the inner wall of the installation cavity 3 and the outer wall of the float rod 5, an electrode plate 9 is installed on the outer wall of one end of the float rod 5, an electrode sheet 10 is installed on the inner wall of the installation cavity 3, a support column 11 is fixedly connected to the inner wall of one end of the air intake pipe 2, a negative pressure motor 12 is installed on the top side of the support column 11, and three fan blades 13 are equidistantly installed on the output end of the negative pressure motor 12, the spray tower 1 is provided with a movable door 28 by hinge cooperation, and a handle 29 is fixedly connected to one side of the movable door 28. The electrode plate 9, the electrode sheet 10 and the pump 16 are all electrically connected to the controller inside the device; when working, the waste gas cannot be sprayed in time in the prior art, which will cause part of the waste gas to be directly discharged without being treated, causing environmental pollution and affecting the effect of waste gas treatment. The negative pressure motor 12 is started to drive the fan blade 13 to rotate, thereby generating negative pressure inside the intake pipe 2, and the waste gas generated by the dye production is sucked into the intake pipe 2. As the waste gas continues to enter, the waste gas flows in the intake pipe 2, pushing the floating plate 7 downward, and the floating plate 7 drives the floating rod 5 and the slider 6 to slide in the slide groove 4 of the installation cavity 3, and at the same time stretching the spring 8, so that when the electrode plate 9 contacts the electrode sheet 10, the signal is transmitted to the controller, and the controller turns on the pump 16, realizing the automatic control of the start of the spray assembly, improving the effect of waste gas treatment, and reducing environmental pollution.

[0023] See also Figure 3-4As shown, a liquid storage tank 14 is installed on one side of the spray tower 1, and a liquid outlet pipe 15 is connected to the inside of the liquid storage tank 14. A pump 16 is installed on the outer wall of the liquid outlet pipe 15, and two annular pipes 17 are equidistantly installed on the outer wall of the liquid outlet pipe 15, and the annular pipe 17 is equidistantly installed with the inner wall of the spray tower 1, and a plurality of nozzles 18 are equidistantly installed inside the annular pipe 17, and a packing layer 19 is installed on the bottom side of the annular pipe 17 inside the spray tower 1, and a filter plate 20 is installed on the inner wall of the bottom end of the spray tower 1 just below the air inlet pipe 2, and a reflux pipe 21 is connected to the bottom side of the spray tower 1, and one end of the reflux pipe 21 is connected to the liquid storage tank 14, and a circulation pump 22 is installed on the outer wall of the reflux pipe 21; when working, in the dye production process, many dye synthesis reactions will produce volatile by-products. The product will volatilize to form waste gas. If it is discharged directly, it will pollute the environment. Therefore, a waste gas treatment device is needed. The pump 16 is started to transport the spray liquid to the annular pipe 17 through the liquid outlet pipe 15. The nozzle 18 atomizes the spray liquid so that the spray liquid can be evenly sprayed into the waste gas. The waste gas after spraying continues to rise and enters the packing layer 19 inside the spray tower 1. The packing layer 19 increases the contact area between the waste gas and the spray liquid. The droplets are fully in contact with the harmful substances in the waste gas with the cooperation of the packing layer 19, and physical adsorption occurs. After spraying and treatment by the packing layer 19, the particulate matter and liquid droplets in the waste gas are intercepted and filtered by the filter plate 20. The used spray liquid remains at the bottom of the spray tower 1, and is finally drawn back by the circulation pump 22 through the reflux pipe 21 and re-enters the liquid storage tank 14 for recycling, which helps to save water resources.

[0024] See also Figure 1 As shown, the top side of the spray tower 1 is equipped with a connecting pipe 23, one end of the connecting pipe 23 is connected to a pretreatment box 24, one side of the pretreatment box 24 is connected to a delivery pipe 25, one end of the delivery pipe 25 is connected to an activated carbon box 26, and one side of the activated carbon box 26 is connected to an exhaust pipe 27; during operation, the waste gas generated in the dye production process contains a variety of complex pollutants, and the spray tower 1 can remove most of the pollutants. For some specific pollutants, the removal effect may not be ideal, so further treatment is required to ensure the comprehensive purification and standard emission of the waste gas. The waste gas after spraying enters the interior of the pretreatment box 24 through the connecting pipe 23, and the pretreatment box 24 is used to further remove dust in the waste gas, and then the waste gas enters the interior of the activated carbon box 26 through the delivery pipe 25, and the activated carbon box 26 is used to adsorb harmful substances in the waste gas, and finally the standard gas is discharged through the exhaust pipe 27.

[0025] Working principle: the negative pressure motor 12 starts, driving the fan blade 13 to rotate, thereby generating negative pressure inside the air intake pipe 2, and the waste gas generated by the dye production is sucked into the air intake pipe 2. As the waste gas continues to enter, the waste gas flows in the air intake pipe 2, pushing the floating plate 7 downward, and the floating plate 7 drives the floating rod 5 and the slider 6 to slide in the slide groove 4 of the installation cavity 3, and at the same time stretches the spring 8, so that when the electrode plate 9 contacts the electrode sheet 10, the signal is transmitted to the controller, and the controller turns on the pump 16, realizing the automatic control of the start of the spray assembly, improving the effect of waste gas treatment, and reducing environmental pollution;

[0026] The pump 16 is started to deliver the spray liquid to the annular pipe 17 through the liquid outlet pipe 15. The spray head 18 atomizes the spray liquid so that the spray liquid can be evenly sprayed into the waste gas. The waste gas after spraying continues to rise and enters the packing layer 19 inside the spray tower 1. The packing layer 19 increases the contact area between the waste gas and the spray liquid. The droplets are fully in contact with the harmful substances in the waste gas with the cooperation of the packing layer 19, and physical adsorption occurs. After spraying and treatment by the packing layer 19, the particulate matter and liquid droplets in the waste gas are intercepted and filtered by the filter plate 20. The used spray liquid remains at the bottom of the spray tower 1, and is finally drawn back by the circulation pump 22 through the reflux pipe 21 and re-enters the liquid storage tank 14 for recycling, which helps to save water resources.

[0027] The waste gas after spraying enters the pretreatment box 24 through the connecting pipe 23, and the pretreatment box 24 further removes the dust in the waste gas. Then the waste gas enters the activated carbon box 26 through the conveying pipe 25, and the activated carbon box 26 absorbs the harmful substances in the waste gas. Finally, the qualified gas is discharged through the discharge pipe 27;

[0028] Finally, the movable door 28 is opened by the handle 29 to maintain the packing layer 19 and the filter plate 20.

[0029] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0030] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A dye production waste gas treatment device, characterized in that: The invention comprises a spray tower (1), wherein an air intake pipe (2) is connected to the outer wall of the bottom end of the spray tower (1), an automatic spray assembly is installed inside the bottom end of the air intake pipe (2), and the automatic spray assembly comprises a mounting cavity (3), wherein the mounting cavity (3) is fixedly connected to the air intake pipe (2), a slide groove (4) is provided inside one end of the mounting cavity (3), a slider (6) is slidably installed inside the slide groove (4), a floating rod (5) is fixedly connected to one side of the sliding rod (6), and the floating rod (5) is ) is arranged through the installation cavity (3), the other end of the float rod (5) extends to the interior of the intake duct (2) and is fixedly connected to a float plate (7), two springs (8) are fixedly connected equidistantly between the inner wall of the installation cavity (3) and the outer wall of the float rod (5), an electrode plate (9) is installed on the outer wall of one end of the float rod (5), an electrode sheet (10) is installed on the inner wall of the installation cavity (3), and the electrode plate (9) and the electrode sheet (10) are on the same horizontal line, and the elastic coefficient of the spring (8) is high.

2. A dye production waste gas treatment device according to claim 1, characterized in that: A support column (11) is fixedly connected to the inner wall of one end of the air intake pipe (2), a negative pressure motor (12) is installed on the top side of the support column (11), and three fan blades (13) are equidistantly installed at the output end of the negative pressure motor (12).

3. A dye production waste gas treatment device according to claim 2, characterized in that: A liquid storage tank (14) is installed on one side of the spray tower (1), a liquid outlet pipe (15) is connected to the inside of the liquid storage tank (14), a pump (16) is installed on the outer wall of the liquid outlet pipe (15), two annular pipes (17) are installed at equal intervals on the outer wall of the liquid outlet pipe (15), the annular pipes (17) are installed at equal intervals with the inner wall of the spray tower (1), a plurality of spray heads (18) are installed at equal intervals inside the annular pipes (17), and a packing layer (19) is installed on the bottom side of the annular pipes (17) inside the spray tower (1).

4. A dye production waste gas treatment device according to claim 3, characterized in that: A filter plate (20) is installed on the inner wall of the bottom end of the spray tower (1) just below the air inlet pipe (2), a return pipe (21) is connected to the bottom side of the spray tower (1), one end of the return pipe (21) is connected to the liquid storage tank (14), and a circulation pump (22) is installed on the outer wall of the return pipe (21).

5. The dye production waste gas treatment device according to claim 4, characterized in that: The top side of the spray tower (1) is equipped with a connecting pipe (23), one end of the connecting pipe (23) is connected to a pretreatment box (24), one side of the pretreatment box (24) is connected to a delivery pipe (25), one end of the delivery pipe (25) is connected to an activated carbon box (26), and one side of the activated carbon box (26) is connected to a discharge pipe (27).

6. The dye production waste gas treatment device according to claim 1, characterized in that: A movable door (28) is installed on one side of the spray tower (1) by means of a hinge, and a handle (29) is fixedly connected to one side of the movable door (28). The electrode plate (9), the electrode sheet (10) and the pump (16) are all electrically connected to a controller inside the device, wherein the controller is used for signal transmission between the electrode plate (9) and the electrode sheet (10), and for operating control of the pump (16).

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