Waste gas purification device for cable combustion test

Abstract

The utility model discloses a waste gas purification device for a cable combustion test. The waste gas purification device comprises a spray purification tower and a waste gas purification liquid pool, a spraying system is arranged in the spraying purification tower and is connected with the waste gas purification liquid pool; a sedimentation tank is arranged at the bottom of the spray purification tower, and the spray system is arranged above the sedimentation tank; the spraying system is a two-layer spraying device, the spraying device is a shower type spraying head, and the shower type spraying head comprises a plurality of 360-degree atomizing water spraying heads. The spray purification tower is reasonable in structural design, and has the following beneficial effects that two layers of spray devices are arranged on the spray purification tower, a plurality of 360-degree atomizing water spray heads are arranged on each layer, dense high-pressure water mist can be formed in the spray purification tower when the spray purification tower is opened, and the spray purification tower can be in 100% contact with waste gas, so that the waste gas can be purified. The acidity in the waste gas is quickly and efficiently neutralized, the temperature of the waste gas is reduced, granular impurities and oil stains in the waste gas are settled, the purification effect is greatly improved, and the water consumption is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas purification devices, in particular to a waste gas purification device for cable combustion tests. Background Art

[0002] Waste gas purification mainly refers to the work of treating industrial waste gas generated in industrial sites, such as dust particles, flue gas and soot, odor gas, toxic and harmful gas. Common waste gas purification includes factory soot waste gas purification, workshop dust waste gas purification, organic waste gas purification, waste gas odor purification, acid-base waste gas purification, chemical waste gas purification, etc.

[0003] With the continuous improvement of the global attention to environmental protection, environmental protection policies play an important role in various fields, and the wire and cable industry is no exception. The government generally endeavors to reduce energy consumption, lower pollution emissions, and promote sustainable development. In the field of wire and cable, this means higher requirements for the environmental protection performance of wire and cable products, which need to be carried out in laboratories or experimental sites that meet specific environmental protection standards to ensure that waste gas, wastewater, and waste residue generated during the test are properly treated and will not pollute the surrounding environment. At the same time, requirements are also put forward for the environmental protection performance of test equipment. For example, it is required that combustion test equipment be equipped with an efficient waste gas treatment device to reduce the emission of harmful gases during the combustion process. Content of the Utility Model

[0004] The purpose of the utility model is to provide a waste gas purification device for cable combustion tests to solve the environmental protection problem of waste gas emissions during the combustion process.

[0005] To achieve the above purpose, the technical solution of the utility model provides a waste gas purification device for cable combustion tests, including a spray purification tower. An exhaust gas outlet is arranged at the top of the spray purification tower, and an exhaust gas inlet is arranged on the middle side of the spray purification tower. The waste gas purification device further includes a waste gas purification liquid pool; a spray system is arranged in the spray purification tower, and the spray system is connected to the waste gas purification liquid pool; a sedimentation tank is arranged at the bottom of the spray purification tower, and the spray system is arranged above the sedimentation tank; the spray system is a two-layer spray device, the spray device is a shower-type spray head, and the shower-type spray head includes a number of 360° atomizing spray heads.

[0006] Further, the shower-type spray head includes 6 360° atomizing spray heads, and the top view shape of the structure is an equilateral hexagon.

[0007] Further, the spray width of the 360° atomizing spray head is 400mm, and the spray flow rate is 0.27L / min.

[0008] Further, a honeycomb drainage plate is arranged below each layer of spray device in the spray purification tower, and the thickness of the honeycomb drainage plate is 20 mm.

[0009] Further, two layers of activated carbon filter cotton are arranged on one side of the sedimentation tank. An outlet is arranged on the side of the sedimentation tank where the activated carbon filter cotton is arranged. One end of the outlet is connected to the spray system, and a 700W non-adjustable booster pump is also arranged.

[0010] Further, filter cotton fixing plates are respectively arranged on the left and right sides of each layer of activated carbon filter cotton, and a pull-out opening is arranged on the inner side of the filter cotton fixing plate corresponding to the activated carbon filter cotton.

[0011] Further, the filter cotton fixing plate is a drainage plate.

[0012] Further, the waste gas purification liquid pool is an alkaline neutralization liquid pool with a pH value of 9, and the waste gas purification liquid pool also includes a 700W non-adjustable booster pump.

[0013] Further, the spray purification tower is also provided with observation windows; the number of the observation windows is 2, and they are correspondingly arranged below the spray device.

[0014] Further, the waste gas purification device also includes a high-voltage ionization box and an activated carbon adsorption box. The waste gas outlet is connected to the high-voltage ionization box, and the high-voltage ionization box is connected to the activated carbon adsorption box.

[0015] In summary, the device structure of the present utility model is reasonably designed. By applying the technical solution of the present utility model, the following beneficial effects are achieved: Two layers of spray devices are arranged in the spray purification tower of the present utility model. A number of 360° atomizing spray heads are installed on each layer. When they are turned on simultaneously, a dense high-pressure water mist can be formed in the spray purification tower, which can make 100% contact with the waste gas, quickly and efficiently neutralize the acid in the waste gas, reduce the temperature of the waste gas, sediment particulate impurities and oil stains in the waste gas, and greatly improve the purification effect and save water consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the waste gas purification device of the present utility model;

[0017] Description of the reference numerals: 1 - waste gas inlet; 2 - honeycomb drainage plate; 3 - waste gas outlet; 4 - observation window; 5 - 360° atomizing spray head; 6 - waste gas purification liquid pool; 7 - 700W non-adjustable booster pump; 8 - sedimentation tank; 9 - activated carbon filter cotton. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention, but it does not constitute a limitation on the protection scope of the present invention.

[0019] In the present invention, for a clearer description, the following explanations are made: When an observer observes, the front left side of the observer is set as the front, the rear right side of the observer is set as the rear, the rear left side of the observer is set as the left, the front right side of the observer is set as the right, the upper side of the observer is set as the upper, and the lower side of the observer is set as the lower. It should be noted that the terms "front end", "rear end", "left side", "right side", "middle part", "upper side", "lower side", etc. in the text indicate the orientation or position relationship based on the orientation or position relationship set by the accompanying drawings, which is only for the purpose of clearly describing the present invention, rather than indicating or implying that the structures or components referred to must have a specific orientation and be constructed in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", "third", "fourth" are only used for the purpose of clear or simplified description, and cannot be understood as indicating or implying relative importance or quantity. Figure 1 The present invention provides a spray washing device for purifying combustion exhaust gas, which can effectively reduce harmful substances and oil stains in the exhaust gas through the condensation method and the chemical absorption method, and purify the combustion exhaust gas.

[0020] Referring to

[0021] , the present invention provides an exhaust gas purification device for a cable combustion test, including a spray purification tower. An exhaust gas outlet 3 is provided at the top of the spray purification tower, and an exhaust gas inlet 1 is provided on the middle side of the spray purification tower. The exhaust gas purification device further includes an exhaust gas purification liquid pool 6; a spray system is provided in the spray purification tower, and the spray system is connected to the exhaust gas purification liquid pool 6; a sedimentation tank 8 is provided at the bottom of the spray purification tower, and the spray system is arranged above the sedimentation tank 8. The spray system is a two-layer spray device, and the spray device is a shower-type spray head. The shower-type spray head includes a number of 360° atomizing spray heads 5. Figure 1

[0022] The present invention sets two layers of spray devices in the spray purification tower, and a number of 360° atomizing spray heads 5 are installed on each layer, which are staggered. When multiple atomizing spray heads are turned on at the same time, a dense high-pressure water mist is formed in the spray purification tower, which can achieve 100% contact with the exhaust gas, quickly and efficiently neutralize the acidity in the exhaust gas and reduce the exhaust gas temperature, sediment particulate impurities and oil stains in the exhaust gas. Compared with the original spray system, the purification effect is greatly improved and the water consumption is saved.

[0023] As a preferred embodiment of the present invention, the shower-type spray head includes 6 360° atomizing spray heads 5, and the top view shape of the structure is an equilateral hexagon; the spray width of the 360° atomizing spray head 5 is 400 mm and the spray flow rate is 0.27 L / min.​

[0024] Specifically, a honeycomb drainage plate 2 is provided below each layer of the spray device in the spray purification tower, and the thickness of the honeycomb drainage plate 2 is 20 mm. A 20-mm-thick honeycomb drainage plate 2 is installed in the middle and upper layers of the spray purification tower. When the waste gas passes through the honeycomb drainage plate, it further contacts the alkaline neutralization liquid, which can further settle the impurity particles in the waste gas and improve the effect.

[0025] As a preferred embodiment of the present utility model, two layers of activated carbon filter cotton 9 are further provided on one side of the sedimentation tank 8. An outlet is provided on the side of the sedimentation tank 8 where the activated carbon filter cotton 9 is provided, and one end of the outlet is connected to the spray system. At the same time, a 700W non-adjustable booster pump 7 is also provided. Specifically, filter cotton fixing plates are respectively provided on the left and right sides of each layer of activated carbon filter cotton 9, and a pull-out port is provided on the inner side of the filter cotton fixing plate corresponding to the activated carbon filter cotton 9. Specifically, the filter cotton fixing plate is a drainage plate.

[0026] After the alkaline neutralization liquid contacts the waste gas, it is concentrated and collected in the sedimentation tank 8. Since two layers of activated carbon filter cotton 9 are provided at one end of the outlet, and the activated carbon filter cotton 9 is placed in the middle of the drainage plate (the drainage plate is provided with a pull-out port for easy replacement), after the activated carbon filter cotton 9 filters and removes impurities and oil in the water, the used alkaline neutralization liquid can be circulated and sprayed again through the water pump and the spray head. After being filtered by the activated carbon filter cotton 9, the particulate impurities and oil can be greatly reduced, and the possibility of blockage of the shower-type spray head can be avoided.

[0027] Specifically, the waste gas purification liquid tank 6 is an alkaline neutralization liquid tank with a pH value of 9, and the waste gas purification liquid tank 6 further includes a 700W non-adjustable booster pump 7.

[0028] Specifically, the spray purification tower is further provided with an observation window 4; the number of the observation windows 4 is 2, and they are correspondingly arranged below the spray device.

[0029] Specifically, the waste gas purification device further includes a high-voltage ionization box and an activated carbon adsorption box. The waste gas outlet 3 is connected to the high-voltage ionization box, and the high-voltage ionization box is connected to the activated carbon adsorption box. The waste gas purified by the alkaline neutralization liquid is discharged from the waste gas outlet 3 at the top of the spray purification tower and enters the high-voltage ionization box, where the waste gas is further ionized and decomposed. After ionization, it is adsorbed and dried by the activated carbon adsorption box before the completely purified waste gas can be discharged.

[0030] The spray system of the prior art adopts a circulating water mode. A water pump is used to spray water from the shower-type spray head into the spray purification tower through a water pipe in the sedimentation tank at the bottom of the spray purification tower. The contact with the waste gas is uneven, and it is impossible to effectively settle the particles and oil in the waste gas and neutralize the acid in the waste gas.

[0031] The utility model is provided with a clean alkaline neutralization liquid pool on the side of the spray purification tower, and a 700W non-adjustable booster pump is used to transport the alkaline neutralization liquid to the upper and middle layers of the spray purification tower. Six 360° atomizing spray nozzles are installed on each of the upper and middle layers of the spray purification tower, staggered. The spray width of each spray nozzle is 400mm, and the spray flow rate of each spray nozzle is 0.27L / min. When the 12 atomizing spray nozzles are opened simultaneously, a dense high-pressure water mist is formed in the spray purification tower, which can achieve 100% contact with the waste gas, quickly and efficiently neutralize the acid in the waste gas, reduce the temperature of the waste gas, settle the particulate impurities and oil stains in the waste gas. Compared with the original spray system, the purification effect is greatly improved and the water consumption is saved. At the same time, the device can provide high-quality waste gas purification effect, reduce pollution emissions, thereby reducing the harm caused by waste gas to inspection personnel, not polluting the surrounding environment, responding to environmental protection policies, and thus protecting the environment.

[0032] The working process of the utility model:

[0033] 1. Before the combustion test, add clean alkaline neutralization liquid with a pH value of 9.0 to the waste gas purification liquid pool 6, and turn on the 700W non-adjustable booster pump 7 connected to the waste gas purification liquid pool 6 to transport the alkaline neutralization liquid to the 360° atomizing spray nozzle 5, so that the spray purification tower is filled with a dense high-pressure water mist;

[0034] 2. Conduct a combustion test on the cable. The waste gas generated during the combustion test enters the spray purification tower through the waste gas inlet 1, and passes through the honeycomb drainage plate 2 and the honeycomb drainage plate 2 from bottom to top. In the spray purification tower, it contacts the dense high-pressure water mist, neutralizes the acidic waste gas in the waste gas, reduces the temperature of the waste gas, settles the particulate impurities and oil stains in the waste gas. The high-pressure water mist washes the honeycomb drainage plate 2 during the falling process, takes away the settled impurities and oil stains, and collects them in the sedimentation tank 8;

[0035] 3. The alkaline neutralization liquid with pollutants in the sedimentation tank 8 passes through the activated carbon filter cotton 9. After two filtrations, the impurities in the alkaline neutralization liquid are removed, and then the used alkaline neutralization liquid can be sprayed out again through the water pump and the spray head to form a circulation mode.

[0036] 4. The waste gas is fully neutralized, washed and settled during the process from bottom to top, and the preliminarily purified waste gas is discharged from the waste gas outlet 3 and enters the high-voltage ionization box to further ionize and decompose the waste gas. After ionization, it is adsorbed and dried by the activated carbon adsorption box before the completely purified waste gas can be discharged.

[0037] The above is the preferred implementation mode of the utility model. It should be pointed out that for those of ordinary skill in the art in this technical field, without departing from the principle of the utility model, several improvements and retouches can be made, and these improvements and retouches are also regarded as the protection scope of the utility model.

Claims

1. An exhaust gas purification device for a cable combustion test, comprising a spray purification tower. An exhaust gas outlet is provided at the top of the spray purification tower, and an exhaust gas inlet is provided on the middle side of the spray purification tower. It is characterized in that: The waste gas purification device further includes a waste gas purification liquid pool; a spraying system is arranged in the spraying purification tower, and the spraying system is connected to the waste gas purification liquid pool; a sedimentation pool is arranged at the bottom of the spraying purification tower, and the spraying system is arranged above the sedimentation pool; the spraying system is a two-layer spraying device, the spraying device is a shower-type spraying head, and the shower-type spraying head includes a number of 360° atomizing water spray heads.

2. The waste gas purification device for a cable combustion test according to claim 1, characterized in that: The shower-type spraying head includes 6 360° atomizing water spray heads, and the top view shape of the structure is an equilateral hexagon.

3. The waste gas purification device for a cable combustion test according to claim 2, characterized in that: The spray width of the 360° atomizing water spray head is 400 mm, and the spray flow rate is 0.27 L / min.

4. The exhaust gas purification device for a cable combustion test according to any one of claims 1 to 3, characterized in that: A honeycomb drainage board is arranged below each layer of the spraying device in the spraying purification tower, and the thickness of the honeycomb drainage board is 20 mm.

5. The exhaust gas purification device for a cable combustion test according to claim 4, characterized in that: Two layers of activated carbon filter cotton are also arranged on one side of the sedimentation pool, an outlet is arranged on the side of the sedimentation pool where the activated carbon filter cotton is arranged, one end of the outlet is connected to the spraying system, and a 700W non-adjustable booster pump is also arranged.

6. The exhaust gas purification device for a cable combustion test according to claim 5, characterized in that: Filter cotton fixing plates are respectively arranged on the left and right sides of each layer of activated carbon filter cotton, and a pulling port is arranged on the inner side of the filter cotton fixing plate corresponding to the activated carbon filter cotton.

7. The exhaust gas purification device for a cable combustion test according to claim 6, characterized in that: The filter cotton fixing plate is a drainage board.

8. The exhaust gas purification device for a cable combustion test according to any one of claims 1, 2, 3, 5, 6, and 7, characterized in that: The waste gas purification liquid pool is an alkaline neutralization liquid pool with a pH value of 9, and the waste gas purification liquid pool further includes a 700W non-adjustable booster pump.

9. An exhaust gas purification device for a cable combustion test according to any one of claims 1, 2, 3, 5, 6, and 7, characterized in that: The spraying purification tower is also provided with observation windows; the number of the observation windows is 2, and they are correspondingly arranged below the spraying device.

10. An exhaust gas purification device for a cable combustion test according to any one of claims 1, 2, 3, 5, 6, and 7, characterized in that: The waste gas purification device further includes a high-voltage ionization box and an activated carbon adsorption box, the waste gas outlet is connected to the high-voltage ionization box, and the high-voltage ionization box is connected to the activated carbon adsorption box.

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