Formaldehyde separation device for production

Abstract

The utility model discloses a formaldehyde separation device for production, and relates to the technical field of formaldehyde separation, the formaldehyde separation device comprises a separation box, a supporting seat is welded to the bottom end of the separation box, an air inlet pipe is mounted on the lower side of the left end of the separation box, a first-stage adsorption plate is arranged on the inner side of the separation box, and a water tank is mounted on the rear side of the separation box; an exhaust pipe is installed on the upper side of the right end of the separation box, control valves are installed in a gas inlet pipe and the exhaust pipe, after gas is adsorbed and separated, water in a water tank is heated through a heater to generate high-temperature water vapor, the high-temperature water vapor is guided into the separation box through a gas conveying pipe, and therefore the temperature in the separation box is increased; according to the formaldehyde recycling device, the activity capacity of formaldehyde molecules is improved, formaldehyde on the adsorption plate is released again, meanwhile, the adsorption plate can be cleaned to a certain degree through water vapor, the adsorption plate can be repeatedly used, meanwhile, the released formaldehyde is guided and collected through the collecting pipe, and the formaldehyde recycling convenience is improved.

Description

Technical Field

[0001] This utility model relates to the field of formaldehyde separation technology, and in particular to a formaldehyde separation device for production. Background Technology

[0002] Formaldehyde is a gas with a pungent odor that can be released for 3-15 years. It irritates the eyes and upper respiratory tract mucous membranes, and its harmful effects on human health manifest as olfactory abnormalities, allergies, abnormal lung function, abnormal liver function, and abnormal immune function. Direct skin contact with formaldehyde can also cause dermatitis, pigmentation, and necrosis. In industrial production, formaldehyde separation is often an important step in the industrial emission process.

[0003] A search revealed that the document with publication number "CN216418885U" mentions "this utility model discloses a formaldehyde separation device for production, including a box body, a fixed rod fixedly connected to the left surface of the box body, a connector provided on the outer surface of the fixed rod, an airbag fixedly connected to the outer surface of the connector, an air inlet pipe fixedly connected to the left surface of the connector, a fan fixedly connected to the bottom inner wall of the box body, a first detector fixedly connected to the bottom inner wall of the box body and to the right of the fan, and a first baffle fixedly connected to the bottom inner wall of the box body and to the right of the first detector." This device, through the design of the connector and airbag, draws in multiple exhaust devices and prevents gas leakage by using the airbag, enabling the detection and treatment of gases using different methods, thus reducing costs. However, existing devices typically remove formaldehyde from gases through physical adsorption. Physical adsorption has a certain saturation point, especially in high-concentration formaldehyde environments, requiring repeated replenishment of the adsorption material, which not only increases operating costs but also affects the separation efficiency of formaldehyde from the gas.

[0004] To address these issues, we provide a formaldehyde separation device for production. Utility Model Content

[0005] The purpose of this invention is to provide a formaldehyde separation device for production, thereby solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a formaldehyde separation device for production, comprising a separation box, a support base welded to the bottom of the separation box, an air inlet pipe installed on the lower left side of the separation box, a primary adsorption plate provided on the inner side of the separation box, and a water tank installed on the rear side of the separation box.

[0007] Preferably, an exhaust pipe is installed on the upper right side of the separation box, and control valves are installed inside the intake pipe and the exhaust pipe.

[0008] Preferably, the primary adsorption plate and the separation box are connected by a slot, and the primary adsorption plate is made of activated carbon.

[0009] Preferably, a secondary adsorption plate is provided on the upper side of the primary adsorption plate, and the secondary adsorption plate is made of zeolite.

[0010] Preferably, a tertiary adsorption plate is disposed above the secondary adsorption plate, and the tertiary adsorption plate is made of MOFs (Metal-Organic Facility Materials).

[0011] Preferably, a water injection pipe is installed on the rear side of the surface of the water tank, a heater is installed at the bottom of the water tank, an air supply pipe is installed at the top of the water tank, and an air inlet valve is installed at the top of the separation box.

[0012] Preferably, a discharge safety valve is installed at the bottom of the separation box, and a collection pipe is fixedly installed at the bottom of the discharge safety valve.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. The primary adsorption plate of activated carbon can adsorb relatively large impurities and some formaldehyde molecules, playing a preliminary filtration and adsorption role. Then, the secondary adsorption plate is made of zeolite, which more accurately adsorbs the formaldehyde molecules remaining after passing through the activated carbon layer, further reducing the formaldehyde concentration in the gas. Then, the tertiary adsorption plate efficiently captures the small amount of formaldehyde still present after passing through the zeolite layer, achieving a deep adsorption effect, thereby minimizing the formaldehyde content in the exhaust gas.

[0015] 2. After the gas is adsorbed and separated, the water in the tank is heated by a heater to generate high-temperature steam, which is then introduced into the separation chamber through a gas delivery pipe. This increases the temperature in the separation chamber, enhances the activity of formaldehyde molecules, and causes the formaldehyde on the adsorption plate to be released again. At the same time, the steam can clean the adsorption plate to a certain extent, enabling the adsorption plate to be reused. The released formaldehyde is also guided and collected through a collection pipe, improving the convenience of formaldehyde recovery. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall front structure proposed in this utility model;

[0017] Figure 2 This is a schematic diagram of the combined structure of the separation box, the discharge safety valve, and the collection pipe proposed in this utility model;

[0018] Figure 3 This is a schematic diagram of the combined structure of the separation box, water tank, and heater proposed in this utility model;

[0019] Figure 4This is a schematic diagram of the internal structure of the separation box proposed in this utility model.

[0020] In the diagram: 1. Separation box; 2. Support base; 3. Air inlet pipe; 4. Exhaust pipe; 5. Control valve; 6. First-stage adsorption plate; 7. Second-stage adsorption plate; 8. Third-stage adsorption plate; 9. Water tank; 10. Water injection pipe; 11. Heater; 12. Air supply pipe; 13. Air inlet valve; 14. Discharge safety valve; 15. Collection pipe. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-4 As shown, a formaldehyde separation device for production includes a separation box 1, a support base 2 welded to the bottom of the separation box 1, an air inlet pipe 3 installed on the lower left side of the separation box 1, a primary adsorption plate 6 installed on the inner side of the separation box 1, and a water tank 9 installed on the rear side of the separation box 1.

[0023] Furthermore, an exhaust pipe 4 is installed on the upper right side of the separation box 1, and a control valve 5 is installed inside the intake pipe 3 and the exhaust pipe 4. The gas to be separated is introduced into the separation box 1 through the intake pipe 3, then the formaldehyde is separated and discharged through the exhaust pipe 4. At the same time, the control valve 5 facilitates the opening and closing of the exhaust pipe 4 and the intake pipe 3, making it convenient to process the separation box 1.

[0024] Furthermore, the primary adsorption plate 6 is connected to the separation box 1 by a slot. The primary adsorption plate 6 is made of activated carbon. The activated carbon primary adsorption plate 6 can adsorb relatively large impurities and some formaldehyde molecules, thus playing a preliminary filtration and adsorption role.

[0025] Furthermore, a secondary adsorption plate 7 is provided on the upper side of the primary adsorption plate 6. The secondary adsorption plate 7 is made of zeolite. The secondary adsorption plate 7 can more accurately adsorb the formaldehyde molecules remaining after passing through the activated carbon layer, thereby further reducing the concentration of formaldehyde in the gas.

[0026] Furthermore, a tertiary adsorption plate 8 is installed above the secondary adsorption plate 7. The tertiary adsorption plate 8 is made of MOFs (Metal-Organic Facility Materials). The tertiary adsorption plate 8 efficiently captures the small amount of formaldehyde that still exists after passing through the zeolite layer, achieving a deep adsorption effect, thereby minimizing the formaldehyde content in the exhaust gas.

[0027] Furthermore, a water injection pipe 10 is installed on the rear side of the surface of the water tank 9, a heater 11 is installed at the bottom of the water tank 9, a gas supply pipe 12 is installed at the top of the water tank 9, and an air inlet valve 13 is installed at the top of the separation box 1. After the gas is adsorbed and separated, the water in the water tank 9 is heated by the heater 11 to generate high-temperature water vapor, which is then introduced into the separation box 1 through the gas supply pipe 12, thereby increasing the temperature in the separation box 1, enhancing the activity of formaldehyde molecules, and causing the formaldehyde on the adsorption plate to be released again. At the same time, the water vapor can clean the adsorption plate to a certain extent, realizing the reuse of the adsorption plate.

[0028] Furthermore, a discharge safety valve 14 is installed at the bottom of the separation box 1, and a collection pipe 15 is fixedly installed at the bottom of the discharge safety valve 14. After a certain air pressure is reached inside the separation box 1, the discharge safety valve 14 will automatically open to ensure the re-release effect of formaldehyde on the separation box 1. At the same time, the released formaldehyde is guided and collected through the collection pipe 15 to improve the convenience of formaldehyde recovery.

[0029] Working Principle: In use, firstly, the device is installed at the desired location. The gas to be separated is then introduced into the separation chamber 1 through the inlet pipe 3. After formaldehyde separation, it is discharged through the exhaust pipe 4. Simultaneously, the control valve 5 allows for easy control of the opening and closing of the exhaust pipe 4 and the inlet pipe 3, facilitating the processing of the separation chamber 1. Secondly, the primary adsorption plate 6 of activated carbon adsorbs relatively large impurities and some formaldehyde molecules, providing initial filtration and adsorption. Next, the secondary adsorption plate 7, made of zeolite, more precisely adsorbs the remaining formaldehyde molecules after passing through the activated carbon layer, further reducing the formaldehyde concentration in the gas. Finally, the tertiary adsorption plate 8 efficiently captures the remaining trace amounts of formaldehyde after passing through the zeolite layer, achieving deep adsorption. The process involves three steps: First, to minimize the formaldehyde content in the exhaust gas. Second, after adsorption and separation of the gas, the water in the water tank 9 is heated by the heater 11 to generate high-temperature steam, which is then introduced into the separation chamber 1 through the gas supply pipe 12. This increases the temperature in the separation chamber 1, enhances the activity of formaldehyde molecules, and causes the formaldehyde on the adsorption plate to be released again. At the same time, the steam can clean the adsorption plate to a certain extent, enabling the adsorption plate to be reused. Third, after a certain air pressure is reached inside the separation chamber 1, the discharge safety valve 14 will automatically open to ensure the re-release effect of formaldehyde on the separation chamber 1. At the same time, the released formaldehyde is guided and collected through the collection pipe 15 to improve the convenience of formaldehyde recovery. This completes the use of a formaldehyde separation device for production.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A formaldehyde separation device for production, comprising a separation chamber (1), characterized in that: The bottom of the separation box (1) is welded with a support base (2), an air inlet pipe (3) is installed on the lower left side of the separation box (1), a primary adsorption plate (6) is provided on the inner side of the separation box (1), and a water tank (9) is installed on the rear side of the separation box (1).

2. The formaldehyde separation device for production according to claim 1, characterized in that, An exhaust pipe (4) is installed on the upper right side of the separation box (1), and a control valve (5) is installed inside the air inlet pipe (3) and the exhaust pipe (4).

3. The formaldehyde separation device for production according to claim 1, characterized in that, The primary adsorption plate (6) and the separation box (1) are connected by a slot, and the primary adsorption plate (6) is made of activated carbon.

4. The formaldehyde separation device for production according to claim 1, characterized in that, A secondary adsorption plate (7) is provided on the upper side of the primary adsorption plate (6), and the secondary adsorption plate (7) is made of zeolite.

5. A formaldehyde separation device for production according to claim 4, characterized in that, A tertiary adsorption plate (8) is provided above the secondary adsorption plate (7), and the tertiary adsorption plate (8) is made of MOFs organic metal material.

6. The formaldehyde separation device for production according to claim 1, characterized in that, A water injection pipe (10) is installed on the rear side of the surface of the water tank (9), a heater (11) is installed at the bottom of the water tank (9), an air supply pipe (12) is installed at the top of the water tank (9), and an air inlet valve (13) is installed at the top of the separation box (1).

7. The formaldehyde separation device for production according to claim 1, characterized in that, The bottom of the separation box (1) is equipped with a discharge safety valve (14), and a collection pipe (15) is fixedly installed at the bottom of the discharge safety valve (14).

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