Waste gas treatment device with dust removal function for casting smelting

Abstract

The casting smelting waste gas treatment device with the dust removal function comprises a treatment box, an air suction fan and a filter tank, the air suction fan and a fixing plate are fixedly installed in the treatment box, a dust removal structure and an activated carbon filter screen are arranged in the fixing plate, a box door is installed on the front side of the treatment box, and a dust removal structure is installed on the box door. A pretreatment structure is mounted at the top end of the outer side of the treatment box, an air inlet pipe is fixedly mounted at the top end of the pretreatment structure, a filter tank is mounted at the bottom end of the outer side of the treatment box, and an exhaust pipe is fixedly connected to the right side of the filter tank. According to the casting smelting waste gas treatment device with the dust removal function, particle impurities in waste gas can be removed through the dust removal structure, the dust removal structure can be conveniently detached and cleaned through a fixing plate and a box door, an activated carbon filter screen can be conveniently replaced, the waste gas can be conveniently cooled through a pretreatment structure, and through a circulating pump, the waste gas can be recycled. And cooling water can be recycled, so that the cooling efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of casting smelting technology, specifically to a waste gas treatment device for casting smelting with dust removal function. Background Technology

[0002] The waste gas generated during the casting smelting process has a complex composition, containing various pollutants such as dust, sulfur dioxide (SO2), and nitrogen oxides (NOx). x The waste gas treatment system effectively removes these pollutants through multi-stage processes, such as pretreatment, core purification, and advanced treatment. These processes include volatile organic compounds (VOCs) and acidic gases (such as sulfuric acid mist and chromic acid mist).

[0003] Referring to Chinese Patent Publication No. CN214389424U, published on October 15, 2021, an environmentally friendly waste gas treatment device for casting smelting is disclosed. The device includes a housing, a solar panel fixedly connected to the top of the housing, water-resistant plates welded to the top of the inner walls on both sides of the housing, a U-shaped pipe welded to the top left side of the housing extending through and to the bottom right side of the water-resistant plate, a water inlet pipe welded to the top right side of the housing, a water outlet pipe welded to the top right side of the housing, a drive motor fixedly connected to the bottom left side of the housing, a first pulley fixedly connected to the output shaft of the drive motor, and a battery fixedly connected to the top of the drive motor and to the outer left side of the housing. This invention is simple in design, novel in design, and enables the recycling of energy while purifying waste gas, thus protecting the environment, increasing work efficiency, and saving labor costs.

[0004] The existing technologies have the following technical problems: the existing waste gas treatment devices for casting smelting with dust removal function only have one filter plate, the dust removal effect needs to be improved, and it is not convenient to treat the impurities on the filter screen; therefore, we propose a waste gas treatment device for casting smelting with dust removal function to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this utility model is to provide a waste gas treatment device for casting smelting with dust removal function, so as to solve the problem mentioned in the background art that the existing waste gas treatment device for casting smelting with dust removal function only has one filter plate, the dust removal effect needs to be improved, and it is not convenient to treat the impurities on the filter screen.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a waste gas treatment device for casting smelting with dust removal function, comprising a treatment box, an air suction fan, and a filter tank. The air suction fan and a fixed plate are fixedly installed inside the treatment box. A dust removal structure and an activated carbon filter screen are provided inside the fixed plate. A box door is installed on the front side of the treatment box. A pretreatment structure is installed on the top of the outer side of the treatment box. An air inlet pipe is fixedly installed on the top of the pretreatment structure. A filter tank is installed on the bottom of the outer side of the treatment box. An exhaust pipe is fixedly connected to the right side of the filter tank.

[0007] The door includes a door body, a viewing window, and a sealing strip. The door body is rotatably connected to the front side of the processing box. A viewing window is provided in the middle of the door body, and a sealing strip is installed on the inner side of the door body.

[0008] Preferably, the dust removal structure includes a first filter and a second filter, both of which are disposed between two fixed plates.

[0009] Preferably, the pretreatment structure includes a water tank, a circulating pump, water pipes, a U-shaped pipe, and a cooling tank. The water tank is fixedly installed on the right side of the outside of the treatment tank. The top of the water tank is fixedly connected to the circulating pump through a water pipe. The side of the circulating pump away from the water tank is fixedly connected to the U-shaped pipe through a water pipe. The U-shaped pipe is fixedly installed inside the cooling tank.

[0010] Preferably, the cooling box is connected to the processing box at its bottom via a pipe.

[0011] Preferably, the treatment tank is connected to the filter tank at its bottom via a pipe.

[0012] Preferably, the fixing plate is fixedly installed inside the left and right walls of the processing box.

[0013] Preferably, the activated carbon filter is disposed between the fixed plate and the bottom wall of the treatment chamber.

[0014] Compared with the prior art, the beneficial effects of this utility model are: the waste gas treatment device for casting smelting with dust removal function can remove particulate impurities in the waste gas through the dust removal structure, and the dust removal structure can be easily disassembled and cleaned through the fixed plate and the box door, and the activated carbon filter screen can be easily replaced. The pretreatment structure facilitates the cooling of the waste gas, and the circulating pump enables the cooling water to be recycled, thereby improving the cooling efficiency.

[0015] 1. Equipped with a dust removal structure, the first filter screen blocks larger impurity particles, and the second filter screen blocks smaller impurity particles, thereby reducing the accumulation of particulate impurities at the top of the two filter screens and thus improving processing efficiency;

[0016] 2. It is equipped with a fixed plate and a door. The first and second filter screens are both set between the upper and lower fixed plates. The activated carbon filter screen is set between the fixed plate and the bottom wall of the treatment box. Open the door, hold the filter screen and take it out, so as to facilitate the removal of impurities on the first and second filter screens and facilitate the replacement of the activated carbon filter screen.

[0017] 3. It is equipped with a pretreatment structure. The U-shaped tube is filled with cold water. When the exhaust gas passes through the U-shaped tube, the cold water can absorb the heat in the exhaust gas, thereby cooling the exhaust gas. At the same time, the cooling box is equipped with two pairs of U-shaped tubes to improve the cooling efficiency.

[0018] Furthermore, the water tank and the circulation pump are connected by water pipes, and the circulation pump is connected to the U-shaped pipe through water pipes, so that the cold water in the U-shaped pipe and the water tank can be circulated and reused, avoiding the trouble of manually changing the water and improving the cooling efficiency. Attached Figure Description

[0019] Figure 1 This is a frontal sectional view of the present invention.

[0020] Figure 2 This is a front view structural diagram of the present invention;

[0021] Figure 3 This is a structural diagram of the box door of this utility model in the open state;

[0022] Figure 4 This is a side view sectional diagram of the present invention;

[0023] Figure 5 This is a side view of the structure of this utility model.

[0024] In the diagram: 1. Processing box; 2. Suction fan; 3. Dust removal structure; 301. First filter screen; 302. Second filter screen; 4. Fixing plate; 5. Activated carbon filter screen; 6. Box door; 601. Door body; 602. Viewing window; 603. Sealing strip; 7. Pretreatment structure; 701. Water tank; 702. Circulation pump; 703. Water pipe; 704. U-shaped pipe; 705. Cooling box; 8. Filter pool; 9. Exhaust pipe; 10. Air inlet pipe. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1-5The present invention provides the following technical solution:

[0027] Example 1: A waste gas treatment device for casting smelting with dust removal function includes a treatment box 1, an air suction fan 2 and a filter tank 8. The air suction fan 2 and a fixed plate 4 are fixedly installed inside the treatment box 1. The fixed plate 4 is provided with a dust removal structure 3 and an activated carbon filter screen 5. A box door 6 is installed on the front side of the treatment box 1. A pretreatment structure 7 is installed on the top of the outer side of the treatment box 1. An air inlet pipe 10 is fixedly installed on the top of the pretreatment structure 7. A filter tank 8 is installed on the bottom of the outer side of the treatment box 1. An exhaust pipe 9 is fixedly connected to the right side of the filter tank 8.

[0028] like Figure 1 , Figure 3 and Figure 4 As shown, the dust removal structure 3 includes a first filter screen 301 and a second filter screen 302. The fixing plate 4 is fixedly installed inside the left and right walls of the treatment box 1. The first filter screen 301 and the second filter screen 302 are both set between the two fixing plates 4. When the suction fan 2 is started, the suction fan 2 draws the exhaust gas into the treatment box 1. The aperture of the first filter screen 301 is larger than that of the second filter screen 302. The exhaust gas first passes through the first filter screen 301, and the large particles of impurities remain at the top of the first filter screen 301. The exhaust gas continues to flow downward and passes through the second filter screen 302. The smaller particles of impurities remain at the top of the second filter screen 302, thereby removing visible particles in the exhaust gas.

[0029] like Figures 2-5 As shown, the door 6 includes a door body 601, a viewing window 602, and a sealing strip 603. The door body 601 is rotatably connected to the front side of the processing box 1. The sealing strip 603 is installed on the inner side of the door body 601 to ensure the sealing performance of the processing box 1. A handle is fixedly connected to the outer side of the door body 601. The activated carbon filter 5 is set between the fixed plate 4 and the bottom wall of the processing box 1.

[0030] Hold the handle and open the door 601. Take out the activated carbon filter 5 directly, and then push the new activated carbon filter 5 into the fixed plate 4 and the bottom wall of the treatment box 1. When it is necessary to remove the impurities at the top of the first filter 301 and the second filter 302, take them out directly, clean the impurities, and then push them between the two fixed plates 4. A viewing window 602 is provided in the middle of the door 601, which makes it easy for the staff to observe the internal operation of the treatment box 1, so as to clean the impurities at the top of the first filter 301 and the second filter 302 in time, and replace the activated carbon filter 5 in time, thereby maintaining the normal operation of the treatment box 1.

[0031] like Figures 1-3 and Figure 5As shown, the pretreatment structure 7 includes a water tank 701, a circulating pump 702, a water pipe 703, a U-shaped pipe 704, and a cooling box 705. An air inlet pipe 10 is fixedly connected to the top of the cooling box 705. The cooling box 705 is connected to the treatment box 1 at its bottom through a pipe. The suction fan 2 draws the exhaust gas into the cooling box 705. Two sets of U-shaped pipes 704 are fixedly installed inside the cooling box 705. Cold water is filled into the U-shaped pipes 704. When the exhaust gas passes through the cold water, the heat is absorbed by the cold water, thereby achieving a cooling effect on the exhaust gas.

[0032] A U-shaped pipe 704 is fixedly connected to one side of the circulating pump 702 via a water pipe 703. A water tank 701 is fixedly connected to the other end of the circulating pump 702 away from the U-shaped pipe 704 via a water pipe 703. When the cold water in the U-shaped pipe 704 absorbs a lot of heat and becomes hot, the cooling effect decreases. At this time, the circulating pump 702 is activated to put the hot water in the U-shaped pipe 704 into the water tank 701 and to pump cold water back into the water tank 701 to form a circulation system, thereby improving the cooling efficiency.

[0033] Working principle: The intake pipe 10 is connected to the exhaust outlet pipe. The suction fan 2 draws the exhaust gas into the exhaust gas treatment device. The exhaust gas first enters the cooling box 705 for cooling, and then enters the treatment box 1. The dust removal structure 3 performs dust removal treatment, and the activated carbon filter 5 removes harmful gases and odors from the exhaust gas. The treatment box 1 is connected to the filter pool 8 at its bottom through a pipe, and then enters the filter pool 8. It mainly functions in the form of a biological filter. Its core is to use the metabolic action of microorganisms to purify pollutants in the exhaust gas. Finally, the treated gas is discharged from the exhaust pipe 9.

[0034] The above completes a series of operations for the waste gas treatment device for casting smelting with dust removal function. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0035] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0036] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A waste gas treatment device for casting smelting with dust removal function, comprising a treatment box (1), an air suction fan (2), and a filter tank (8), characterized in that: The processing box (1) is fixedly installed with an air suction fan (2) and a fixed plate (4). The fixed plate (4) is provided with a dust removal structure (3) and an activated carbon filter (5). The processing box (1) is installed with a door (6) on the front side. The processing box (1) is installed with a pretreatment structure (7) on the top of the outer side. The pretreatment structure (7) is fixedly installed with an air inlet pipe (10) on the top of the pretreatment structure (7). The processing box (1) is installed with a filter pool (8) on the bottom of the outer side. The filter pool (8) is fixedly connected with an exhaust pipe (9) on the right side. The door (6) includes a door body (601), a viewing window (602) and a sealing strip (603). The door body (601) is rotatably connected to the front side of the processing box (1). A viewing window (602) is provided in the middle of the door body (601), and a sealing strip (603) is installed on the inner side of the door body (601).

2. The waste gas treatment device for casting smelting with dust removal function according to claim 1, characterized in that: The dust removal structure (3) includes a first filter screen (301) and a second filter screen (302), both of which are disposed between two fixed plates (4).

3. The waste gas treatment device for casting smelting with dust removal function according to claim 1, characterized in that: The pretreatment structure (7) includes a water tank (701), a circulating pump (702), a water pipe (703), a U-shaped pipe (704), and a cooling tank (705). The water tank (701) is fixedly installed on the right side of the outside of the treatment tank (1). The top of the water tank (701) is fixedly connected to the circulating pump (702) through the water pipe (703). The side of the circulating pump (702) away from the water tank (701) is fixedly connected to the U-shaped pipe (704) through the water pipe (703). The U-shaped pipe (704) is fixedly installed inside the cooling tank (705).

4. The waste gas treatment device for casting smelting with dust removal function according to claim 3, characterized in that: The cooling box (705) is connected to the processing box (1) at its bottom via a pipe.

5. The waste gas treatment device for casting smelting with dust removal function according to claim 1, characterized in that: The processing tank (1) is connected to the filter tank (8) at its bottom via a pipe.

6. The waste gas treatment device for casting smelting with dust removal function according to claim 1, characterized in that: The fixing plate (4) is fixedly installed inside the left and right walls of the processing box (1).

7. The waste gas treatment device for casting smelting with dust removal function according to claim 1, characterized in that: The activated carbon filter (5) is disposed between the fixed plate (4) and the bottom wall of the treatment box (1).

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