Automatic detection and control device for waste gas treatment spray water

Abstract

The utility model discloses an automatic detection and control device for waste gas treatment spray water, which comprises a spray dust removal neutralizing tower, a PH meter is arranged in the spray dust removal neutralizing tower, a feeding hopper is mounted at the top of the spray dust removal neutralizing tower, one end of the feeding hopper is connected with a feeding pipeline, the tail part of the feeding pipeline is connected with a feeding pump, and the other end of the feeding pipeline is connected with a water pump. One end of the feeding pump is connected with an external feeding barrel, one side of the spraying dust removal neutralizing tower is connected with a PH meter control unit, and one side of the PH meter control unit is connected with a PLC (Programmable Logic Controller) and DA (Digital-to-Analog) module. It is ensured that the pH value of the spraying water is always within a proper range, the optimal waste gas treatment effect is achieved, original manual detection is upgraded to online real-time detection, and the pH value can be checked in real time. The pH value is neutralized through automatic feeding, and time and labor are saved.

Description

Technical Field

[0001] The utility model relates to the field of waste gas treatment, in particular to an automatic detection and control device for spraying water for waste gas treatment. Background Art

[0002] Waste gas refers to toxic and harmful gases discharged by humans in the process of production and life. Industrial waste gas emitted by various production enterprises is an important source of air pollutants. If a large amount of industrial waste gas is discharged into the atmosphere without being treated to meet the standards, it will inevitably cause the quality of the atmospheric environment to decline, bring serious harm to human health, and cause losses to the national economy.

[0003] As a textile printing and dyeing enterprise, the sizing and dyeing workshop uses sulfur dyes, sizing, acids and other substances, and will produce a large amount of yarn hair / dust after sizing and drying. It cannot be discharged directly. It needs to go through dust removal, neutralization and adsorption methods to reduce the dust, yarn hair and harmful substances in the exhaust gas so that it can be discharged only after meeting the standards.

[0004] The waste gas generated by pulping and dyeing is mainly composed of sulfur / acidic substances, accompanied by a large amount of dust, so it must first be dust-removed and brought into neutral conditions.

[0005] In the process, a spray tower (secondary) dust removal treatment is used. The dust in the exhaust gas is removed by spraying and then dried with activated carbon. It is discharged only after meeting the standards.

[0006] During the spray dust removal, dust / yarn wool falls into the spray water, which contains acidic substances that cause the pH to be acidic. Therefore, equipment is used to detect the pH value of the spray water during this process, and NaOH is used to neutralize it in time to make it neutral. Utility Model Content

[0007] The utility model aims to solve the shortcomings in the prior art and proposes an automatic detection and control device for spraying water for waste gas treatment.

[0008] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an automatic detection and control device for waste gas treatment spray water, comprising a spray dust removal neutralization tower, a pH meter is arranged inside the spray dust removal neutralization tower, a feeding funnel is installed on the top of the spray dust removal neutralization tower, one end of the feeding funnel is connected to a feeding pipe, the tail of the feeding pipe is connected to a feeding pump, one end of the feeding pump is connected to an external feeding barrel, one side of the spray dust removal neutralization tower is connected to a pH meter control unit, and one side of the pH meter control unit is connected to a PLC and a DA module.

[0009] As a further description of the above technical solution:

[0010] The pH meter is fixedly installed inside the spray dust removal and neutralization tower, and the size of the pH meter is smaller than that of the spray dust removal and neutralization tower.

[0011] As a further description of the above technical solution:

[0012] The feeding funnel is arranged above the spray dust removal and neutralization tower, and the feeding pipeline is fixedly connected to one end of the feeding funnel.

[0013] As a further description of the above technical solution:

[0014] The feeding pump is fixedly connected to one side of the feeding pipeline, and the external feeding barrel is connected to the feeding pump through a pipeline.

[0015] As a further description of the above technical solution:

[0016] The pH meter control unit is fixedly connected to one side of the spray dust removal and neutralization tower, the PLC and DA modules are fixedly connected to one side of the feeding pump, and the pH meter control unit is connected to the PLC and DA modules.

[0017] As a further description of the above technical solution:

[0018] The spray dust removal and neutralization tower is controlled by a pH meter control unit, and the feed pump is controlled by a PLC and DA module.

[0019] The utility model has the following beneficial effects:

[0020] In the utility model, the automatic detection and control device for waste gas treatment spray water performs real-time detection of the spray water in the spray dust removal neutralization tower through a pH meter to ensure that the pH value of the spray water is always within a suitable range to achieve the best waste gas treatment effect. When the pH meter detects that the pH value of the spray water exceeds the set range, the pH meter control unit will immediately send a signal to the PLC and DA modules. After receiving the signal, the PLC and DA modules will control the feeding pump to start working, and add the regulator in the external feeding barrel to the spray dust removal neutralization tower through the feeding pipe and the feeding funnel to adjust the pH value of the spray water.

[0021] In addition, the device also has the advantages of high automation, easy operation and good stability. The setting of pH meter control unit, PLC and DA module enables the whole device to automatically treat exhaust gas without manual intervention, which greatly improves work efficiency. At the same time, the device also has strong adaptability and scalability, and can be adjusted and expanded according to actual needs to meet the exhaust gas treatment needs in different scenarios.

[0022] Upgrading from the original manual detection to online real-time detection allows you to view the pH value in real time.

[0023] Automatically add materials to neutralize pH value, saving time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The utility model is a schematic diagram of the overall structure of an automatic detection and control device for spraying water for waste gas treatment.

[0025] Legend:

[0026] 1. Spray dust removal and neutralization tower; 2. pH meter; 3. Feeding funnel; 4. Feeding pipeline; 5. Feeding pump; 6. External feeding barrel; 7. pH meter control unit; 8. PLC and DA module. DETAILED DESCRIPTION

[0027] 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.

[0028] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present utility model; the terms "first", "second" and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal connection of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0029] Reference Figure 1The utility model provides an embodiment: an automatic detection and control device for spray water for waste gas treatment, comprising a spray dust removal neutralization tower 1, wherein a pH meter 2 is arranged inside the spray dust removal neutralization tower 1, a feeding funnel 3 is installed on the top of the spray dust removal neutralization tower 1, one end of the feeding funnel 3 is connected to a feeding pipe 4, a feeding pump 5 is connected to the tail of the feeding pipe 4, one end of the feeding pump 5 is connected to an external feeding barrel 6, one side of the spray dust removal neutralization tower 1 is connected to a pH meter control unit 7, and one side of the pH meter control unit 7 is connected to a PLC and a DA module 8.

[0030] In the utility model, the pH meter 2 is fixedly installed inside the spray dust removal and neutralization tower 1, and the size of the pH meter 2 is smaller than the size of the spray dust removal and neutralization tower 1.

[0031] Furthermore, the feeding funnel 3 is arranged above the spray dust removal and neutralization tower 1 , and the feeding pipe 4 is fixedly connected to one end of the feeding funnel 3 .

[0032] Furthermore, the feeding pump 5 is fixedly connected to one side of the feeding pipe 4, and the external feeding barrel 6 is connected to the feeding pump 5 through a pipe.

[0033] Specifically, the design of the feed pump 5 ensures a stable material flow and precise control. Driven by the feed pump 5, the material is accurately extracted and transported to the feed pipe 4. The material of the feed pipe 4 is carefully selected to ensure smooth material transportation and to withstand possible high temperature or corrosive environments.

[0034] The design of the external feeding barrel 6 takes into account the convenience and safety of operation. The barrel body is made of durable plastic or metal materials to ensure its stability and durability during use. A special feeding port is provided on the barrel cover to facilitate users to add materials.

[0035] Furthermore, the pH meter control unit 7 is fixedly connected to one side of the spray dust removal and neutralization tower 1 , the PLC and DA module 8 are fixedly connected to one side of the feeding pump 5 , and the pH meter control unit 7 is connected to the PLC and DA module 8 .

[0036] Specifically, the water tank tower is equipped with an industrial pH meter, which can detect in real time.

[0037] The feeding tank is equipped with an automatic feeding machine, which is linked to the pH meter through the PLC / DA module.

[0038] There is a real-time detection display panel to detect pH value online.

[0039] Furthermore, the spray dust removal neutralization tower 1 is controlled by a pH meter control unit 7, and the feeding pump 5 is controlled by a PLC and DA module 8. The pH value control range (6.5∽8.5) is set by adjustment, and the pH value is detected online and fed back to the PLC / DA module. When the pH is ≦6.5, the feeding pump automatically feeds, and when it reaches ≧8.5, the feeding pump is automatically shut down, thereby better controlling the pH value of the spray water to be in a neutral range.

[0040] Working principle and usage process:

[0041] The waste gas enters the device through the spray dust removal and neutralization tower 1. A pH meter 2 is provided inside the spray dust removal and neutralization tower 1. The pH meter 2 is used to monitor the pH value of the spray water in real time. When the waste gas contacts the spray water, the harmful substances in the waste gas are absorbed and neutralized by the spray water to form neutralized waste water.

[0042] A feeding funnel 3 is installed on the top of the spray dust removal neutralization tower 1, and the feeding funnel 3 is connected to the feeding pump 5 through the feeding pipe 4. When the pH meter 2 detects that the pH value of the spray water exceeds the set range, the pH meter control unit 7 will send a signal to the PLC and DA module 8, and the PLC and DA module 8 will control the feeding pump 5 to start, extract an appropriate amount of neutralizer from the external feeding barrel 6, and add it to the spray dust removal neutralization tower 1 through the feeding pipe 4 and the feeding funnel 3, so as to adjust the pH value of the spray water to within the set range.

[0043] At the same time, the PLC and DA module 8 will also record data such as the working status of the feeding pump 5, the feeding amount, and the change in the pH value of the spray water, so as to facilitate subsequent analysis and optimization of the operation of the device.

[0044] Through the above work flow, the automatic detection and control device for waste gas treatment spray water of the utility model can realize real-time monitoring and automatic adjustment of the pH value of the spray water, ensuring the effect of waste gas treatment and the standard discharge of waste water. At the same time, the device also has the advantages of simple structure, convenient operation, high degree of automation, etc., and can be widely used in various waste gas treatment occasions.

[0045] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic detection and control device for spraying water for waste gas treatment, comprising a spray dust removal and neutralization tower (1), characterized in that: A pH meter (2) is arranged inside the spray dust removal neutralization tower (1), a feeding funnel (3) is installed on the top of the spray dust removal neutralization tower (1), one end of the feeding funnel (3) is connected to a feeding pipe (4), the tail of the feeding pipe (4) is connected to a feeding pump (5), one end of the feeding pump (5) is connected to an external feeding barrel (6), one side of the spray dust removal neutralization tower (1) is connected to a pH meter control unit (7), and one side of the pH meter control unit (7) is connected to a PLC and a DA module (8).

2. The automatic detection and control device for spraying water for waste gas treatment according to claim 1 is characterized in that: The pH meter (2) is fixedly installed inside the spray dust removal neutralization tower (1), and the size of the pH meter (2) is smaller than the size of the spray dust removal neutralization tower (1).

3. The automatic detection and control device for spraying water for waste gas treatment according to claim 1 is characterized in that: The feeding funnel (3) is arranged above the spray dust removal and neutralization tower (1), and the feeding pipe (4) is fixedly connected to one end of the feeding funnel (3).

4. The automatic detection and control device for spraying water for waste gas treatment according to claim 1 is characterized in that: The feeding pump (5) is fixedly connected to one side of the feeding pipeline (4), and the external feeding barrel (6) is connected to the feeding pump (5) via a pipeline.

5. The automatic detection and control device for spraying water for waste gas treatment according to claim 1 is characterized in that: The pH meter control unit (7) is fixedly connected to one side of the spray dust removal neutralization tower (1), the PLC and DA module (8) are fixedly connected to one side of the feed pump (5), and the pH meter control unit (7) is connected to the PLC and DA module (8).

6. The automatic detection and control device for spraying water for waste gas treatment according to claim 1 is characterized in that: The spray dust removal and neutralization tower (1) is controlled by a pH meter control unit (7), and the feed pump (5) is controlled by a PLC and DA module (8).

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