Formaldehyde production absorption device

Abstract

The utility model relates to the technical field of chemical production, and discloses a formaldehyde production and absorption device which comprises a formaldehyde heating and evaporating device, the top of the formaldehyde heating and evaporating device is in pipeline connection with a spraying and water dissolving device, and one side of the spraying and water dissolving device is in pipeline connection with a mixed liquid storage device. The formaldehyde heating and evaporating device comprises a formaldehyde melt water tank, an electric heating plate is fixedly connected to the bottom of the formaldehyde melt water tank, a first water pipe is connected to the top of the formaldehyde melt water tank through a pipeline, a first gas guide pipe is connected to one side of the formaldehyde melt water tank through a pipeline, and a gas storage tank is connected to the top end of the first gas guide pipe through a pipeline. A second gas guide pipe is connected to the bottom of one end of the gas storage tank through a pipeline, a barrel shell is connected to the top end of a first water pipe through a pipeline, a table plate is fixedly connected to the bottom of an electric heating plate, and a second mounting plate is fixedly connected to the bottom of the gas storage tank, so that the purity of formaldehyde is increased, and waste of formaldehyde in the production process is avoided.

Description

Technical Field

[0001] This utility model relates to the field of chemical production technology, and more specifically to a formaldehyde production absorption device. Background Technology

[0002] Formaldehyde production absorption devices refer to equipment that absorbs formaldehyde gas from the production process and converts it into liquid or solid products. The working principle of formaldehyde production absorption devices mainly utilizes the characteristic that the solubility of formaldehyde gas in the absorption liquid changes with temperature and pressure. By controlling the temperature and pressure conditions inside the absorption tower and optimizing the design of the spray system and packing, efficient absorption and conversion of formaldehyde gas can be achieved. However, most existing devices still have some shortcomings. This utility model proposes a new solution to address these shortcomings. Chinese Patent Publication No. CN215463142U discloses a spray absorption device for formaldehyde production, including a shell, an air inlet component, a spray component, a mixing component, a liquid storage tank, and a filter element. An air inlet pipe is provided at the lower end of the shell, and an air outlet pipe is provided at the upper end. The air inlet component, spray component, and filter element are arranged inside the shell from bottom to top and cooperate with the mixing component. This invention features an air intake component that uses air pipes of varying heights and diameters to distribute and uniformly expel air. A spray component restricts the movement of formaldehyde, ensuring its full absorption by the absorbent liquid and improving absorption efficiency and effectiveness. A mixing component, activated by a rotating shaft that synchronizes with the scraper, rotates due to airflow from different directions and the spray liquid, accelerating gas-liquid mixing and absorption, further enhancing the absorption efficiency and effectiveness of formaldehyde.

[0003] The shortcomings of the existing technology are as follows: In this technical solution, the formaldehyde is discharged by absorbing the waste gas in the formaldehyde with an absorbent liquid and filtering out the formaldehyde. However, formaldehyde is easily soluble in water. When the absorbent liquid absorbs the waste gas, some formaldehyde is also dissolved in the absorbent liquid and discharged, which will reduce the purity of the formaldehyde and waste it, thereby affecting the formaldehyde yield and product quality. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a formaldehyde production absorption device to solve the problems existing in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a formaldehyde production absorption device, comprising a formaldehyde heating and evaporation device, wherein a top pipe of the formaldehyde heating and evaporation device is connected to a spray water-soluble device, a side pipe of the spray water-soluble device is connected to a mixing and storage device, the formaldehyde heating and evaporation device includes a formaldehyde melt water tank, an electric heating plate is fixedly connected to the bottom of the formaldehyde melt water tank, a first water pipe is connected to the top pipe of the formaldehyde melt water tank, a first gas guide pipe is connected to a side pipe of the formaldehyde melt water tank, a gas storage tank is connected to the top pipe of the first gas guide pipe, a second gas guide pipe is connected to the bottom pipe of one end of the gas storage tank, a cylindrical shell is connected to the top pipe of the first water pipe, a platform is fixedly connected to the bottom of the electric heating plate, a second mounting plate is fixedly connected to the bottom of the gas storage tank, and a cylindrical shell is connected to one end of the second gas guide pipe.

[0006] Furthermore, the spray water-soluble device includes a motor, a base plate is bolted to the top of the motor, a cylindrical shell is fixedly connected to the side of the base plate, an air inlet pipe is connected to the top of the cylindrical shell, and a partition bar is welded to the top of the air inlet pipe.

[0007] Furthermore, a spraying assembly is connected to the central shaft at the top of the motor, and a second water pipe is connected to one side of the spraying assembly.

[0008] Furthermore, the spraying assembly includes a fan, a rotating shaft welded to the top of the fan, a rotating shaft fixing member connected to the side of the rotating shaft, a rotating shower head connected to the top pipe of the rotating shaft, and a spray nozzle connected to the side pipe of the rotating shower head.

[0009] Furthermore, the mixed liquid storage device includes a water storage tank, the top pipe of which is connected to a second water pipe, and one end of the second water pipe is fixedly connected to a cylindrical shell.

[0010] Furthermore, a first mounting plate is fixedly connected to the bottom of the water storage tank, and a first mounting plate and a second mounting plate are fixedly connected to the bottom of the cylindrical shell.

[0011] Furthermore, two connecting rods are welded to the bottom of the first mounting plate, two connecting rods are welded to the bottom of the second mounting plate, and a platform is welded to the bottom of the four connecting rods.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] 1. This utility model incorporates a formaldehyde heating and evaporation device. A molten formaldehyde solution containing dissolved foreign matter is piped into a storage tank. A constant-temperature heating element maintains the formaldehyde molten solution at 19 degrees Celsius. At this temperature, formaldehyde reaches its boiling point while the aqueous solution does not, allowing the formaldehyde molten solution to evaporate without water vapor dilution. The formaldehyde gas is then stored in a gas storage tank via a gas delivery pipe. This device helps increase the purity of formaldehyde, avoids waste during production, and thus improves formaldehyde yield and product quality.

[0014] 2. This utility model incorporates a spray water-soluble device. The motor-driven fan rotates to absorb formaldehyde, causing the spray nozzle to rotate and allowing the water-soluble liquid to fully contact the formaldehyde. This dissolves foreign substances in the formaldehyde in the water, which is beneficial for the uniform mixing of formaldehyde and absorbent liquid, thereby improving the efficiency and effectiveness of formaldehyde treatment. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the formaldehyde heating and evaporation device of this utility model;

[0017] Figure 3 This is a schematic diagram of the spray water-soluble device of this utility model;

[0018] Figure 4 This is a schematic diagram of the spraying component structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the mixed liquid storage device of this utility model.

[0020] The attached figures are labeled as follows: 1. Formaldehyde heating and evaporation device; 101. Formaldehyde melt water tank; 102. Electric heating plate; 103. First water pipe; 104. First air guide pipe; 105. Gas storage tank; 106. Second air guide pipe; 2. Spraying water dissolving device; 201. Motor; 202. Base plate; 203. Cylinder shell; 204. Air inlet pipe; 205. Spacer; 206. Spraying assembly; 2061. Fan; 2062. Rotating shaft; 2063. Rotating shaft fixing component; 2064. Rotating shower head; 2065. Spray nozzle; 3. Mixing liquid storage device; 301. Water storage tank; 302. Second water pipe; 303. First mounting plate; 304. Second mounting plate; 305. Connecting rod; 306. Platform. Detailed Implementation

[0021] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The formaldehyde production and absorption device involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] Reference Figures 1 to 5 This utility model provides a formaldehyde production absorption device, including a formaldehyde heating and evaporation device 1, a top pipe of the formaldehyde heating and evaporation device 1 connected to a spray water dissolving device 2, and a side pipe of the spray water dissolving device 2 connected to a mixing and storage device 3.

[0023] In this embodiment, it is necessary to specifically explain that the formaldehyde heating and evaporation device 1 is used to evaporate and collect formaldehyde in the formaldehyde mixed melt to increase the formaldehyde concentration; the spray water dissolving device 2 is used to mix formaldehyde evenly with the melt; and the mixed liquid storage device 3 is a solution storage tank. The specific structure and working principle of the above components will be explained in detail later.

[0024] In a preferred embodiment, the formaldehyde heating and evaporation device 1 includes a formaldehyde melt water tank 101, an electric heating plate 102 fixedly connected to the bottom of the formaldehyde melt water tank 101, a first water pipe 103 connected to the top of the formaldehyde melt water tank 101, a first gas guide pipe 104 connected to one side of the formaldehyde melt water tank 101, a gas storage tank 105 connected to the top of the first gas guide pipe 104, a second gas guide pipe 106 connected to the bottom of one end of the gas storage tank 105, a cylinder shell 203 connected to the top of the first water pipe 103, a platform 306 fixedly connected to the bottom of the electric heating plate 102, a second mounting plate 304 fixedly connected to the bottom of the gas storage tank 105, and a cylinder shell 203 connected to one end of the second gas guide pipe 106.

[0025] In this embodiment, it is necessary to specifically explain that the first water pipe 103 is located at the top left of the formaldehyde melt tank 101. The melt containing dissolved foreign matter and formaldehyde is circulated into the formaldehyde melt tank 101 through the first water pipe 103. The formaldehyde melt is controlled at 19 degrees Celsius by the electric heating plate 102. At this temperature, the formaldehyde reaches its boiling point while the aqueous solution does not, so the formaldehyde melt evaporates without water vapor dilution. The formaldehyde gas is then stored in the gas storage tank 105 through the first gas guide pipe 104. This device helps to increase the purity of formaldehyde, avoid waste of formaldehyde during the production process, and thus improve the formaldehyde yield and product quality.

[0026] In a preferred embodiment, the spray water-soluble device 2 includes a motor 201, a base plate 202 bolted to the top of the motor 201, a cylinder shell 203 fixedly connected to the side of the base plate 202, an air inlet pipe 204 connected to the top of the cylinder shell 203, a partition bar 205 welded to the top of the air inlet pipe 204, a spraying assembly 206 connected to the middle shaft at the top of the motor 201, and a second water pipe 302 connected to one side of the spraying assembly 206.

[0027] In this embodiment, it should be specifically explained that the spraying component 206 rotates inside the cylinder shell 203 to create negative pressure airflow, and the negative pressure draws formaldehyde near the top port of the air intake pipe 204 into the cylinder shell 203.

[0028] In a preferred embodiment, the spraying assembly 206 includes a fan 2061, a rotating shaft 2062 welded to the top of the fan 2061, a rotating shaft fixing member 2063 connected to the side of the rotating shaft 2062, a rotating shower head 2064 connected to the top of the rotating shaft 2062, and a spray nozzle 2065 connected to the side of the rotating shower head 2064.

[0029] In this embodiment, it should be specifically explained that the rotating shaft fixing part 2063 is connected to the pipe, which connects to the molten liquid and flows to the rotating shower head 2064, and is sprayed out by the nozzle 2065.

[0030] In a preferred embodiment, the mixed liquid storage device 3 includes a water storage tank 301, a second water pipe 302 connected to the top of the water storage tank 301, a cylindrical shell 203 fixedly connected to one end of the second water pipe 302, a first mounting plate 303 fixedly connected to the bottom of the water storage tank 301, a first mounting plate 303 and a second mounting plate 304 fixedly connected to the bottom of the cylindrical shell 203, two connecting rods 305 welded to the bottom of the first mounting plate 303, two connecting rods 305 welded to the bottom of the second mounting plate 304, and a platform 306 welded to the bottom of the four connecting rods 305.

[0031] In this embodiment, it should be specifically noted that the first mounting plate 303 is fixedly connected to one side of the bottom of the cylindrical shell 203, and the second mounting plate 304 is fixedly connected to the other side of the bottom of the cylindrical shell 203.

[0032] The working principle of this utility model:

[0033] In this embodiment, to address the issue that some formaldehyde also dissolves in the absorption liquid and is discharged, leading to a decrease in formaldehyde purity and waste, the following solution is provided: The spraying component 206 rotates within the cylinder shell 203 to create negative pressure. This negative pressure draws formaldehyde near the top port of the air inlet pipe 204 into the cylinder shell 203. The rotating shaft fixing component 2063 connects to the pipe, which connects to the molten liquid and flows to the rotating shower head 2064, where it is sprayed out by the nozzle 2065. The formaldehyde dissolves in the molten liquid. The first water pipe 103 is located at the top of the formaldehyde molten liquid tank 101. In the left position, the molten formaldehyde solution containing dissolved foreign matter is circulated to the formaldehyde molten solution tank 101 through the first water pipe 103. The formaldehyde molten solution is then controlled at 19 degrees Celsius using an electric heating plate 102. At this temperature, formaldehyde reaches its boiling point while the aqueous solution does not, causing the formaldehyde molten solution to evaporate without water vapor dilution. The formaldehyde gas is then stored in the gas storage tank 105 through the first gas guide pipe 104. This device helps to increase the purity of formaldehyde, avoid waste of formaldehyde during the production process, and thus improve the formaldehyde yield and product quality.

[0034] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0035] Secondly: The accompanying drawings of the embodiments disclosed in this invention only involve the structures involved in the embodiments disclosed in this invention. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this invention can be combined with each other.

[0036] In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. 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 formaldehyde production absorption device comprising a formaldehyde heating evaporation device (1), characterized in that, The top pipeline of the formaldehyde heating evaporation device (1) is connected with a spraying water dissolving device (2), one side pipeline of the spraying water dissolving device (2) is connected with a mixed liquid storage device (3), the formaldehyde heating evaporation device (1) comprises a formaldehyde melt water tank (101), the bottom of the formaldehyde melt water tank (101) is fixedly connected with an electric heating plate (102), the top of the formaldehyde melt water tank (101) is connected with a first water pipe (103), one side of the formaldehyde melt water tank (101) is connected with a first air guide pipe (104), the top end of the first air guide pipe (104) is connected with a gas storage tank (105), the bottom of one end of the gas storage tank (105) is connected with a second air guide pipe (106), the top end of the first water pipe (103) is connected with a cylinder shell (203), the bottom of the electric heating plate (102) is fixedly connected with a table plate (306), the bottom of the gas storage tank (105) is fixedly connected with a second mounting plate (304), one end of the second air guide pipe (106) is connected with a cylinder shell (203).

2. A formaldehyde production absorption apparatus according to claim 1, characterized in that: The spraying water dissolving device (2) comprises an electric machine (201), the top of the electric machine (201) is bolted with a bottom plate (202), the side of the bottom plate (202) is fixedly connected with a cylinder shell (203), the top of the cylinder shell (203) is connected with an air inlet pipeline (204), the top end of the air inlet pipeline (204) is welded with a partition strip (205).

3. A formaldehyde production absorption apparatus according to claim 2, characterized in that: The middle rotating shaft of the top of the electric machine (201) is connected with a spraying assembly (206), one side of the spraying assembly (206) is connected with a second water pipe (302).

4. A formaldehyde production absorption apparatus according to claim 3, characterized in that: The spraying assembly (206) comprises a fan (2061), the top of the fan (2061) is welded with a rotating shaft (2062), the side of the rotating shaft (2062) is connected with a rotating shaft fixing piece (2063), the top of the rotating shaft (2062) is connected with a rotating shower head (2064), the side of the rotating shower head (2064) is connected with a spray head (2065).

5. A formaldehyde production absorption apparatus according to claim 1, characterized by: The mixed liquid storage device (3) comprises a water storage tank (301), the top of the water storage tank (301) is connected with a second water pipe (302), one end of the second water pipe (302) is fixedly connected with a cylinder shell (203).

6. A formaldehyde production absorption apparatus according to claim 5, characterized in that: The bottom of the water storage tank (301) is fixedly connected with a first mounting plate (303), the bottom of the cylinder shell (203) is fixedly connected with the first mounting plate (303) and a second mounting plate (304).

7. A formaldehyde production absorption apparatus according to claim 6, characterized in that: The bottom of the first mounting plate (303) is welded with two connecting rods (305), the bottom of the second mounting plate (304) is welded with two connecting rods (305), the bottom of four connecting rods (305) is welded with a table plate (306).

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