Incineration waste gas filtering and purifying device

Abstract

The utility model discloses an incineration waste gas filtering and purifying device which comprises a main body, a gas inlet pipe is arranged on the upper side of one side of the main body, a gas outlet pipe is arranged below the gas inlet pipe, a sealing door is movably installed on one side of the front end of the main body, and the incineration waste gas filtering and purifying device further comprises a cooling cavity formed in one side of the upper end in the main body. And one end of the air inlet pipe extends into the cooling cavity, a filtering cavity is formed in one side of the cooling cavity, a plurality of atomizing nozzles distributed in a rectangular array mode are installed at the upper end in the cooling cavity, and a partition plate is fixed to the upper side in the filtering cavity. According to the incineration waste gas filtering and purifying device, the temperature of waste gas is reduced through cooling water, particulate matter in the waste gas is effectively removed through a bag-type dust collector, acidity in the waste gas is neutralized through a NaOH solution, the waste gas is heated, it is ensured that the waste gas does not contain a large amount of water vapor, and pollution of the incineration waste gas to the environment can be remarkably reduced through treatment; the environment and human health are protected.

Description

Technical Field

[0001] The utility model relates to the technical field of incineration waste gas treatment, in particular to an incineration waste gas filtering and purification device. Background Art

[0002] Incineration waste gas is a complex mixed gas produced by burning solid, liquid or gaseous waste in a high temperature environment during the incineration process. These waste gases contain a variety of pollutants, and their composition and characteristics are affected by many factors such as the type of incinerated material, combustion temperature, combustion method, and the design of the incineration equipment. The incineration waste gas filtration and purification device is a device used to treat the incineration waste gas generated during the incineration process.

[0003] The existing Chinese patent with announcement number CN210303005U discloses a waste gas filtering and purification device for garbage incineration, including a main body and a water spray pipe, a connecting pipe is provided on the right side of the main body, and a centrifuge is provided on the inner wall of the connecting pipe, an inlet is opened at the right end of the centrifuge, and the inner wall of the inlet is connected to a box, a purification plate is provided at the top middle end of the box, and a filter plate is arranged at the lower end of the purification plate, a climbing ladder is installed on the right side of the box, a water pipe is provided on the right outer wall of the filter plate, and the water spray pipe is provided on the inner wall of the water pipe.

[0004] Although the above scheme can filter the incineration waste gas, there is a high problem of high-temperature flue gas during the incineration process, which is easy to produce toxic and harmful substances, such as dioxins. At the same time, the device is not ideal for treating acidic gases, and the filtration and purification is not sufficient, so it does not meet the existing needs. In this regard, we propose an incineration waste gas filtration and purification device. Utility Model Content

[0005] The purpose of the utility model is to provide a filtering and purifying device for incineration waste gas, so as to solve the problem that the filtering and purifying device proposed in the above background technology does not sufficiently treat the incineration waste gas.

[0006] To achieve the above purpose, the utility model provides the following technical solutions: an incineration waste gas filtering and purification device, comprising a main body, an air inlet pipe is arranged on the upper side of one side of the main body, an air outlet pipe is arranged below the air inlet pipe, and a sealing door is movably installed on one side of the front end of the main body;

[0007] It also includes a cooling chamber, which is opened on one side of the upper end of the main body, and one end of the air inlet pipe extends into the cooling chamber, a filter chamber is opened on one side of the cooling chamber, a plurality of atomizing nozzles distributed in a rectangular array are installed on the upper end of the cooling chamber, a partition is fixed on the upper side of the filter chamber, and four equidistantly distributed dust removal filter bags are connected to the lower side of the partition through a venturi tube;

[0008] It also includes a deacidification chamber, which is opened on one side of the lower end of the main body and is filled with a NaOH solution. A drying chamber is opened on one side of the deacidification chamber, and one end of the air outlet pipe extends to the interior of the drying chamber. The cooling chamber and the filtering chamber, and the deacidification chamber and the drying chamber are connected by connecting pipes.

[0009] Preferably, a submersible pump is installed at the lower end of the cooling chamber, and the submersible pump is connected to the atomizing nozzle through a delivery pipe.

[0010] Preferably, a liquid refrigerator is installed below the cooling chamber.

[0011] Preferably, a fan is provided on one side of the filter chamber, and the fan is connected to the filter chamber and the deacidification chamber through an air pipe.

[0012] Preferably, two liquid exchange tubes are provided on the lower side of one side of the main body, and one end of each of the liquid exchange tubes extends into the interior of the deacidification chamber.

[0013] Preferably, a plurality of equally spaced heating wires are installed inside the drying chamber.

[0014] Preferably, universal wheels with locks are installed at the four corners of the lower end of the main body, and a handle is installed on the upper side of the rear end of the main body.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The utility model has a cooling cavity on one side of the upper end of the main body, and a filter cavity on one side of the cooling cavity. When the high-temperature exhaust gas enters the cooling cavity, the submersible pump is started, and the submersible pump can deliver cooling water to the atomizing nozzle through the delivery pipe. After being sprayed out by the atomizing nozzle, the high-temperature exhaust gas passing through can be cooled down to reduce its temperature to avoid the production of harmful substances such as dioxins. At the same time, a dust removal filter bag is arranged inside the filter cavity to significantly reduce the content of particulate matter and salt solid particulate matter in the exhaust gas emission, thereby improving the filtering and purification effect.

[0017] 2. The utility model has a deacidification chamber on one side of the lower end of the main body, and a drying chamber on one side of the deacidification chamber. After the exhaust gas is cooled and filtered, it will enter the deacidification chamber. The interior of the deacidification chamber is filled with NaOH solution. The NaOH solution is mainly used to neutralize the acidic gas in the exhaust gas, such as sulfur dioxide and hydrogen chloride. After the exhaust gas passes into the NaOH solution, a chemical reaction will occur, and the acidic gas will be converted into corresponding salts. The acidic gas content of the exhaust gas treated with the NaOH solution will be greatly reduced, reducing the potential harm of the exhaust gas to the environment.

[0018] 3. The utility model has locking universal wheels installed at the four corners of the lower end of the main body. The main body can be easily moved by the rollers of the locking universal wheels, so that the entire body can be transferred easily. When the position of the main body needs to be fixed, the rollers can be locked with a simple operation to ensure that the main body will not move due to external force, thereby increasing the safety and stability of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a rear view schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 2 It is a front view schematic diagram of the internal structure of the utility model;

[0021] Figure 3 It is a front view schematic diagram of the overall structure of the utility model;

[0022] Figure 4 It is a side view schematic diagram of the overall structure of the utility model;

[0023] Figure 5 For the utility model Figure 2 A partial enlarged view of area A.

[0024] In the figure: 1. main body; 2. air inlet pipe; 3. cooling chamber; 4. liquid refrigerator; 5. submersible pump; 6. delivery pipe; 7. atomizing nozzle; 8. filter chamber; 9. partition; 10. dust filter bag; 11. fan; 12. air delivery pipe; 13. deacidification chamber; 14. drying chamber; 15. heating wire; 16. air outlet pipe; 17. connecting pipe; 18. liquid exchange pipe; 19. universal wheel with lock; 20. sealing door; 21. handle. DETAILED DESCRIPTION

[0025] 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.

[0026] See also Figure 1-5 The utility model provides a technical solution: an incineration waste gas filtering and purification device, comprising a main body 1, an air inlet pipe 2 is arranged on the upper side of one side of the main body 1, an air outlet pipe 16 is arranged below the air inlet pipe 2, and a sealing door 20 is movably installed on one side of the front end of the main body 1;

[0027] It also includes a cooling chamber 3, which is opened on one side of the upper end of the main body 1, and one end of the air inlet pipe 2 extends into the cooling chamber 3, a filter chamber 8 is opened on one side of the cooling chamber 3, and a plurality of atomizing nozzles 7 distributed in a rectangular array are installed on the upper end of the cooling chamber 3, a partition 9 is fixed on the upper side of the filter chamber 8, and four equidistantly distributed dust removal filter bags 10 are connected to the lower side of the partition 9 through a venturi tube;

[0028] It also includes a deacidification chamber 13, which is opened on one side of the lower end of the main body 1, and the interior of the deacidification chamber 13 is filled with a NaOH solution. A drying chamber 14 is opened on one side of the deacidification chamber 13, and one end of the air outlet pipe 16 extends to the interior of the drying chamber 14. The cooling chamber 3 and the filtering chamber 8 and the deacidification chamber 13 and the drying chamber 14 are connected by a connecting pipe 17.

[0029] When in use, the exhaust gas enters the cooling chamber 3 through the air inlet pipe 2, the submersible pump 5 is started, and the cooling water is transported to the atomizing nozzle 7 through the delivery pipe 6. After atomization, it is sprayed out to cool the high-temperature exhaust gas and avoid the generation of harmful substances. The liquid refrigerator 4 ensures the cooling effect, and the cooled exhaust gas enters the filter chamber 8 through the connecting pipe 17 and is filtered by the dust filter bag 10. The dust accumulates at the bottom and is cleaned through the sealing door 20. The fan 11 sucks the filtered exhaust gas into the deacidification chamber 13. The NaOH solution neutralizes the acidic gas. The NaOH solution is replaced through the liquid exchange pipe 18 to ensure the deacidification effect. The deacidified exhaust gas enters the drying chamber 14, and the electric heating wire 15 heats and evaporates the water vapor to avoid the environmental problems caused by the discharge of wet exhaust gas. Finally, the exhaust gas is discharged through the exhaust pipe 16 to reduce the pollution to the environment.

[0030] See also Figure 1 A submersible pump 5 is installed at the lower end of the cooling chamber 3, and the submersible pump 5 is connected to the atomizing nozzle 7 through a delivery pipe 6. The advantage of such a setting is that it can ensure that cooling water is quickly and effectively drawn from the cooling chamber 3 by the submersible pump 5 and delivered to the atomizing nozzle 7 through the delivery pipe 6, thereby achieving rapid and uniform cooling of the high-temperature exhaust gas and improving the treatment efficiency;

[0031] See also Figure 1 A liquid refrigerator 4 is installed below the cooling chamber 3. The liquid refrigerator 4 can continuously provide cooling water to the cooling chamber 3 to ensure the stability and continuity of the cooling effect. It is also convenient for recycling and cooling the cooling water, thereby improving the energy efficiency of the equipment.

[0032] See also Figure 1 A fan 11 is provided on one side of the filter chamber 8, and the fan 11 is connected to the filter chamber 8 and the deacidification chamber 13 through an air pipe 12. The fan 11 can smoothly inhale the filtered waste gas from the filter chamber 8 and transport it to the deacidification chamber 13 through the air pipe 12 for further treatment, thereby ensuring the smooth flow of the waste gas in the pipeline and improving the treatment efficiency;

[0033] See also Figure 2 , Figure 3 and Figure 4 Two liquid exchange tubes 18 are arranged on the lower side of one side of the main body 1, and one end of the liquid exchange tubes 18 extends to the interior of the deacidification chamber 13. The arrangement of the liquid exchange tubes 18 facilitates the replacement and replenishment of the NaOH solution in the deacidification chamber 13, thereby ensuring the continuity and stability of the deacidification effect. At the same time, there are various ways to connect the liquid exchange tubes 18 to the deacidification chamber 13. In this embodiment, a bolt group connection is adopted, which makes replacement and cleaning work more convenient and quick;

[0034] See also Figure 2 A plurality of equally spaced electric heating wires 15 are installed inside the drying chamber 14. The heating element in the drying chamber 14 may be a heating plate, an infrared heater, etc. In this embodiment, the electric heating wires 15 are used to uniformly heat the exhaust gas in the drying chamber 14, so that the moisture in the exhaust gas evaporates rapidly at high temperature, thereby effectively reducing the water vapor content in the exhaust gas. The equally spaced distribution of the electric heating wires 15 ensures the uniformity and stability of heating, and improves the drying effect.

[0035] See also Figure 1 , Figure 2 and Figure 3 The four corners of the lower end of the main body 1 are equipped with locking universal wheels 19, and the upper side of the rear end of the main body 1 is equipped with a handle 21. The locking universal wheels 19 make the device have good mobility and flexibility, and the operator can easily move the device to the desired position, while the handle 21 makes it convenient for the operator to carry and transport the device, thereby improving the portability and operability of the device.

[0036] Working principle: When in use, the operator holds the handle 21 to push the main body 1, and the main body 1 can be easily moved under the rolling of the lockable universal wheel 19, which improves the flexibility and portability during use. The high-temperature exhaust gas from incineration is passed from the air intake pipe 2 into the interior of the cooling chamber 3, and the submersible pump 5 is started. The submersible pump 5 will transport the cooling water in the cooling chamber 3 to the interior of the atomizing nozzle 7 through the delivery pipe 6. The cooling water can be atomized and sprayed out through the spraying of the atomizing nozzle 7, so that the high-temperature exhaust gas passing through can be cooled to avoid the production of harmful substances such as dioxins. The setting of the liquid refrigerator 4 ensures the cooling effect of the cooling water. The cooled exhaust gas will enter the interior of the filter chamber 8 through the connecting pipe 17. The exhaust gas will be effectively filtered by the dust filter bag 10 and will enter the upper end of the filter chamber 8 through the venturi tube, and the fallen dust will accumulate at the lower end of the filter chamber 8. The operator only needs to open the sealing door 20 to remove the dust, which ensures long-term The filtering effect can be improved by starting the fan 11, and the waste gas filtered at the upper end of the filter chamber 8 can be sucked into the deacidification chamber 13. The deacidification chamber 13 is filled with NaOH solution. The waste gas will contact with the NaOH solution, so that a chemical reaction will occur to convert the acidic gas into corresponding salts. The acidic gas content of the waste gas treated with the NaOH solution will be greatly reduced, reducing the potential harm of the waste gas to the environment. The NaOH solution can be replaced through two liquid exchange pipes 18 to ensure the deacidification effect. The deacidified waste gas will enter the drying chamber 14 through the connecting pipe 17. The electric heating wire 15 provided in the drying chamber 14 can heat the waste gas, so that the moisture in the waste gas evaporates rapidly at high temperature, thereby greatly reducing the water vapor content in the waste gas, avoiding the problem that the wet waste gas is directly discharged into the atmosphere, which may cause acid rain and other adverse effects on the surrounding environment, thereby reducing the pollution of the incineration waste gas to the environment and protecting the environment and human health.

[0037] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. An incineration waste gas filtering and purification device, comprising a main body (1), an air inlet pipe (2) is arranged on the upper side of one side of the main body (1), an air outlet pipe (16) is arranged below the air inlet pipe (2), and a sealing door (20) is movably installed on one side of the front end of the main body (1), characterized in that: It also includes a cooling chamber (3) which is opened on one side of the upper end of the main body (1), and one end of the air inlet pipe (2) extends into the interior of the cooling chamber (3); a filter chamber (8) is opened on one side of the cooling chamber (3); a plurality of atomizing nozzles (7) distributed in a rectangular array are installed at the upper end of the interior of the cooling chamber (3); a partition (9) is fixed on the upper side of the interior of the filter chamber (8); and four dust removal filter bags (10) distributed at equal distances are connected below the partition (9) via a venturi tube; The invention also comprises a deacidification chamber (13) which is opened on one side of the lower end of the main body (1), and the interior of the deacidification chamber (13) is filled with a NaOH solution. A drying chamber (14) is opened on one side of the deacidification chamber (13), and one end of an air outlet pipe (16) extends to the interior of the drying chamber (14). The cooling chamber (3) and the filtering chamber (8) and the deacidification chamber (13) and the drying chamber (14) are connected via a connecting pipe (17).

2. The incineration waste gas filtering and purification device according to claim 1 is characterized in that: A submersible pump (5) is installed at the lower end of the cooling chamber (3), and the submersible pump (5) is connected to the atomizing nozzle (7) via a delivery pipe (6).

3. The incineration waste gas filtering and purification device according to claim 2 is characterized in that: A liquid refrigerator (4) is installed below the cooling chamber (3).

4. The incineration waste gas filtering and purification device according to claim 1 is characterized in that: A fan (11) is provided on one side of the filter chamber (8), and the fan (11) is connected to the filter chamber (8) and the deacidification chamber (13) via an air supply pipe (12).

5. The incineration waste gas filtering and purification device according to claim 1 is characterized in that: Two liquid exchange tubes (18) are arranged on the lower side of one side of the main body (1), and one end of each of the liquid exchange tubes (18) extends into the interior of the deacidification chamber (13).

6. The incineration waste gas filtering and purification device according to claim 1 is characterized in that: A plurality of equally spaced electric heating wires (15) are installed inside the drying chamber (14).

7. The incineration waste gas filtering and purification device according to claim 5, characterized in that: Universal wheels (19) with locks are installed at the four corners of the lower end of the main body (1), and a handle (21) is installed on the upper side of the rear end of the main body (1).

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