Novel formaldehyde separation tower for preparing formaldehyde

Abstract

The utility model provides a novel formaldehyde separating tower for preparing formaldehyde. According to the novel formaldehyde separation tower for preparing formaldehyde, the separation tower is installed on the inner surface of a supporting frame, a heating pipe is fixedly connected to the bottom end of the separation tower, an injection pipe is fixedly connected to the position, located at the bottom end, of the outer surface of the heating pipe, and a heater is fixedly connected to the bottom end of the heating pipe; the top end of the heater is fixedly connected with a heating resistance rod, the outer surface of the heating resistance rod is fixedly connected with a plurality of heat conduction discs, the top end of the inner wall of a heating pipe is fixedly connected with a liquid level sensor, and the driving assembly is fixedly connected to the top end of the separation tower. According to the novel formaldehyde separating tower for preparing formaldehyde, contact type heat exchange can be carried out by utilizing the heating pipe in the separating tower and a concentrated formaldehyde solution through the structure, so that the heating temperature can be accurately controlled, the heat efficiency can be improved, the heat loss can be reduced, and the use cost of the separating tower can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of formaldehyde separation towers, in particular to a novel formaldehyde separation tower for preparing formaldehyde. Background Art

[0002] Formaldehyde, also known as formic aldehyde, is an organic compound with the chemical formula CH2O, a relative molecular mass of 30.03, a melting point of -92°C, a boiling point of -19.5°C, and a relative density of 0.815 g / cm3. 3 3. A 35-40% formaldehyde aqueous solution is the well-known formalin solution. Formaldehyde is a colorless gas that is difficult to detect at low concentrations and can be easily masked by other odors, such as air fresheners. At higher concentrations, it has a strong irritating and suffocating odor that can irritate the eyes and nose.

[0003] The disclosed patent 202223297884.0 includes a tower body, which is characterized in that a filtering mechanism is provided on the right side of the tower body, and a stirring mechanism is provided in the inner cavity of the tower body... The produced formaldehyde concentrated solution can be discharged into the tower body through the feed pipe, and then the electric heating wire is energized, which can generate heat and heat the water. The hot water can heat the formaldehyde concentrated solution through the outer wall of the tower body, so that the formaldehyde in it evaporates from the solution. Water bath heating can facilitate precise control of the temperature, prevent the heating temperature from being too low or too high, and help to fully separate the formaldehyde from the mixed solution.

[0004] However, in actual use, since the formaldehyde separation tower is relatively thick, the water is heated by the heating wire and the heat is transferred to the inside of the separation tower to heat the formaldehyde concentrated solution. In this process, a lot of heat will be lost, resulting in low thermal efficiency and increasing the cost of using the formaldehyde separation tower.

[0005] Therefore, it is necessary to provide a new formaldehyde separation tower for preparing formaldehyde to solve the above technical problems. Utility Model Content

[0006] The utility model provides a novel formaldehyde separation tower for preparing formaldehyde, which solves the problem that heat loss, reduced thermal efficiency and increased use cost of the formaldehyde separation tower are caused during the process of heating water by heating wires and transmitting heat from the outer surface of the separation tower to the interior through the water to heat the formaldehyde concentrated solution.

[0007] In order to solve the above technical problems, the utility model provides a novel formaldehyde separation tower for preparing formaldehyde, comprising: a support frame;

[0008] A separation tower, wherein the separation tower is mounted on the inner surface of the support frame, the bottom end of the separation tower is fixedly connected to a heating pipe, the outer surface of the heating pipe is fixedly connected to an injection pipe at the bottom end, the bottom end of the heating pipe is fixedly connected to a heater, the top end of the heater is fixedly connected to a heating resistor rod, the outer surface of the heating resistor rod is fixedly connected to a plurality of heat conducting plates, and the top end of the inner wall of the heating pipe is fixedly connected to a liquid level sensor;

[0009] A drive assembly, wherein the drive assembly is fixedly connected to the top of the separation tower, the output end of the drive assembly is fixedly connected to a rotating shaft, the bottom end of the rotating shaft is fixedly connected to a mounting bracket, the bottom of the mounting bracket near both ends is fixedly connected to a support rod, the bottom end of the support rod is fixedly connected to a stirring rod, the top of the separation tower is fixedly connected to an exhaust pipe, the other end of the exhaust pipe is installed with an adsorption assembly through a connecting pipe, the bottom end of the adsorption assembly is fixedly connected to a docking pipe, and a feed pipe is installed on the outer surface of the separation tower near the top;

[0010] The top of the heating tube is located inside the separation tower, and the bottom end is located at the bottom end of the separation tower. The connection is sealed. A valve is provided at the other end of the injection tube. The heating tube and the heat conduction plate are both made of heat conduction block materials. The inside of the heating tube is empty, and liquid can be injected into the inside through the injection tube. The liquid is heated by the heating resistor rod. The liquid level sensor can monitor the height of the liquid inside the heating tube to avoid dry burning. The other end of the tube is connected to the gas tank for collecting formaldehyde gas.

[0011] Preferably, a discharge pipe is fixedly connected to the bottom of the outer surface of the separation tower, and a valve is installed at the other end of the discharge pipe;

[0012] The valve is opened manually to discharge the separated liquid.

[0013] Preferably, a mounting base is installed on the top of the separation tower, and a temperature sensor is installed on the top of the mounting base;

[0014] The temperature sensor can monitor the temperature inside the separation column.

[0015] Preferably, a control box is installed on the outer surface of the separation tower, and a box door is rotatably connected to one side of the control box;

[0016] The control box is equipped with a power switch and a controller for controlling the operation of the equipment.

[0017] Preferably, the driving assembly comprises a protective shell, both sides of the protective shell are provided with air holes, and a motor is installed inside the protective shell;

[0018] The output end of the motor is connected to the rotating shaft.

[0019] Preferably, the adsorption component comprises an adsorption tube, and a plurality of adsorption cottons are installed inside the adsorption tube through a mounting buckle;

[0020] Adsorption cotton can filter out water vapor in the separated formaldehyde.

[0021] Compared with the related art, the novel formaldehyde separation tower for preparing formaldehyde provided by the present invention has the following beneficial effects:

[0022] The utility model provides a novel formaldehyde separation tower for preparing formaldehyde. In order to increase the thermal efficiency and improve the heating uniformity of the formaldehyde separation tower, a heater is installed at the bottom end of the separation tower through a heating tube. The temperature of the heating resistance rod can be controlled by the heater according to demand, and a plurality of heat-conducting disks are installed on the outer surface of the heating resistance rod, which can accelerate heat conduction and improve the heating efficiency. Water or heat-conducting liquid can be injected into the interior of the heating tube through the injection tube. In order to avoid the precipitation of impurities in the concentrated formaldehyde solution, a mounting frame is installed in the interior of the separation tower through a driving component, and then two stirring rods are installed under the two mounting frames through a supporting rod, so that the stirring rods are located on the outer surface of the heating tube. The stirring of the stirring rods can avoid the precipitation of impurities in the concentrated formaldehyde solution, and the concentrated formaldehyde solution can be heated more evenly in the interior of the separation tower. Through this structure, the heating tube and the concentrated formaldehyde solution located in the interior of the separation tower can be used for contact heat exchange, which can improve the thermal efficiency and reduce the heat loss while accurately controlling the heating temperature, which is conducive to reducing the cost of the separation tower when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic structural diagram of a preferred embodiment of a novel formaldehyde separation tower for preparing formaldehyde provided by the present invention;

[0024] Figure 2 Provides a structural schematic diagram of the mounting frame for the utility model;

[0025] Figure 3 A schematic diagram of the structure of a heat conducting plate is provided for the utility model;

[0026] Figure 4 Provide a structural diagram of the motor for the utility model;

[0027] Figure 5 The utility model provides a structural schematic diagram of adsorption cotton.

[0028] Numbers in the figure: 1. Support frame, 2. Valve, 3. Discharge pipe, 4. Control box, 5. Box door, 6. Separation tower, 7. Feed pipe, 8. Mounting base, 9. Temperature sensor, 10. Drive assembly, 101. Protective shell, 102. Air vent, 103. Motor, 11. Exhaust pipe, 12. Connecting pipe, 13. Adsorption assembly, 131. Adsorption tube, 132. Adsorption cotton, 133. Mounting buckle, 14. Docking pipe, 15. Heating tube, 16. Heater, 17. Heat conduction plate, 18. Stirring rod, 19. Support rod, 20. Mounting frame, 21. Rotating shaft, 22. Heating resistor rod, 23. Liquid level sensor, 24. Injection pipe. DETAILED DESCRIPTION

[0029] The present invention will be further described below with reference to the accompanying drawings and implementation examples.

[0030] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 ,in, Figure 1 A schematic structural diagram of a preferred embodiment of a novel formaldehyde separation tower for preparing formaldehyde provided by the present invention; Figure 2 Provides a structural schematic diagram of the mounting frame for the utility model; Figure 3 A schematic diagram of the structure of a heat conducting plate is provided for the utility model;

[0031] Figure 4 Provide a structural diagram of the motor for the utility model; Figure 5 The utility model provides a structural diagram of the adsorption cotton. The new formaldehyde separation tower for preparing formaldehyde comprises: a support frame 1;

[0032] A separation tower 6 is mounted on the inner surface of the support frame 1. A heating tube 15 is fixedly connected to the bottom end of the separation tower 6. An injection tube 24 is fixedly connected to the outer surface of the heating tube 15 at the bottom end. A heater 16 is fixedly connected to the bottom end of the heating tube 15. A heating resistor rod 22 is fixedly connected to the top end of the heater 16. A plurality of heat conducting plates 17 are fixedly connected to the outer surface of the heating resistor rod 22. A liquid level sensor 23 is fixedly connected to the top end of the inner wall of the heating tube 15.

[0033] A drive assembly 10, wherein the drive assembly 10 is fixedly connected to the top of the separation tower 6, the output end of the drive assembly 10 is fixedly connected to a rotating shaft 21, the bottom end of the rotating shaft 21 is fixedly connected to a mounting bracket 20, the bottom of the mounting bracket 20 near both ends is fixedly connected to a support rod 19, the bottom end of each support rod 19 is fixedly connected to a stirring rod 18, the top of the separation tower 6 is fixedly connected to an exhaust pipe 11, the other end of the exhaust pipe 11 is installed with an adsorption assembly 13 through a connecting pipe 12, the bottom end of the adsorption assembly 13 is fixedly connected to a docking pipe 14, and a feed pipe 7 is installed on the outer surface of the separation tower 6 near the top;

[0034] The top of the heating tube 15 is located inside the separation tower 6, and the bottom is located at the bottom of the separation tower 6. The connection is sealed. The other end of the injection tube 24 is provided with a valve 2. The heating tube 15 and the heat conducting plate 17 are both made of heat conducting block materials. The interior of the heating tube 15 is empty, and liquid can be injected into the interior through the injection tube 24. The liquid is heated by the heating resistor rod 22. The liquid level sensor 23 can monitor the height of the liquid inside the heating tube 15 to avoid dry burning. The other end of the butt-joint tube 14 is connected to the gas tank for collecting formaldehyde gas. The position and shape of the structure at the bottom of the rotating shaft 21 are referenced. Figure 2 The feed pipe 7 can inject the concentrated formaldehyde solution into the interior of the separation tower 6.

[0035] The outer surface of the separation tower 6 is fixedly connected to a discharge pipe 3 at the bottom end, and a valve 2 is installed at the other end of the discharge pipe 3;

[0036] The valve 2 is opened manually to discharge the separated liquid, and the discharge pipe 3 passes through the support frame 1.

[0037] A mounting base 8 is installed on the top of the separation tower 6, and a temperature sensor 9 is installed on the top of the mounting base 8;

[0038] The temperature sensor 9 can monitor the temperature inside the separation tower 6 , and the detection end of the temperature sensor 9 is located at the top of the inner wall of the separation tower 6 .

[0039] A control box 4 is installed on the outer surface of the separation tower 6, and a box door 5 is rotatably connected to one side of the control box 4;

[0040] The box door 5 is provided with a lock, and the interior of the control box 4 is equipped with a power switch and a controller for controlling the operation of the equipment.

[0041] The drive assembly 10 includes a protective shell 101 , with ventilation holes 102 on both sides of the protective shell 101 , and a motor 103 installed inside the protective shell 101 ;

[0042] The output end of the motor 103 is connected to the rotating shaft 21, and the air vent 102 is used to assist in heat dissipation.

[0043] The adsorption assembly 13 includes an adsorption tube 131 , and a plurality of adsorption cottons 132 are installed inside the adsorption tube 131 via mounting buckles 133 ;

[0044] The adsorption cotton 132 can filter out water vapor in the separated formaldehyde, making it convenient for later storage and treatment of the formaldehyde.

[0045] The working principle of the novel formaldehyde separation tower for preparing formaldehyde provided by the utility model is as follows:

[0046] A heater 16 is installed at the bottom of the separation tower 6 through the heating tube 15. The temperature of the heating resistor rod 22 can be controlled by the heater 16 according to demand, and a plurality of heat conducting plates 17 are installed on the outer surface of the heating resistor rod 22 to accelerate heat conduction and improve heating efficiency. Water or heat conducting liquid can be injected into the interior of the heating tube 15 through the injection tube 24. In order to avoid precipitation of impurities in the formaldehyde concentrated solution, a mounting frame 20 is installed inside the separation tower 6 through the drive assembly 10, and then two stirring rods 18 are installed under the two mounting frames 20 through the support rods 19, so that the stirring rods 18 are located on the outer surface of the heating tube 15. The stirring of the stirring rods 18 can avoid impurities in the formaldehyde concentrated solution. Precipitation, at the same time, can also make the formaldehyde concentrated solution more evenly heated inside the separation tower 6. In actual use, the heat-conducting liquid is first injected into the interior of the heating tube 15, and then the formaldehyde concentrated solution raw material is injected into the interior of the separation tower 6 through the feed pipe 7. The heating resistor rod 22 on the heater 16 can be started to heat the heat-conducting liquid. After reaching the preset temperature, the heat of the heat-conducting liquid will be heat-exchanged with the formaldehyde concentrated solution on the outer surface through the heating tube 15, thereby heating the formaldehyde concentrated solution. At the same time, the stirring rod 18 slowly stirs the formaldehyde concentrated solution so that the formaldehyde concentrated solution can be evenly heated, and the heated and volatilized formaldehyde is discharged through the exhaust pipe 11, and then the water vapor is adsorbed by the adsorption component 13, and the formaldehyde gas is discharged from the docking pipe 14.

[0047] Compared with the related art, the novel formaldehyde separation tower for preparing formaldehyde provided by the present invention has the following beneficial effects:

[0048] In order to increase the thermal efficiency of the formaldehyde separation tower heating and improve the heating uniformity, a heater 16 is installed at the bottom end of the separation tower 6 through the heating tube 15. The temperature of the heating resistor rod 22 can be controlled by the heater 16 according to needs, and a plurality of heat-conducting disks 17 are installed on the outer surface of the heating resistor rod 22, which can accelerate heat conduction and improve heating efficiency. Water or heat-conducting liquid can be injected into the interior of the heating tube 15 through the injection tube 24. In order to avoid the precipitation of impurities in the concentrated formaldehyde solution, a mounting bracket 20 is installed inside the separation tower 6 through the drive component 10, and then two stirring rods 18 are installed below the two mounting brackets 20 through the support rod 19, so that the stirring rod 18 is located on the outer surface of the heating tube 15. The stirring of the stirring rod 18 can avoid the precipitation of impurities in the concentrated formaldehyde solution, and can also make the concentrated formaldehyde solution more evenly heated inside the separation tower 6. Through this structure, the heating tube 15 located inside the separation tower 6 and the concentrated formaldehyde solution can be used for contact heat exchange, which can accurately control the heating temperature while improving thermal efficiency and reducing heat loss, which is beneficial to reducing the cost of the separation tower 6 when in use.

[0049] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A novel formaldehyde separation tower for preparing formaldehyde, characterized in that: include: Support frame; A separation tower, wherein the separation tower is mounted on the inner surface of the support frame, the bottom end of the separation tower is fixedly connected to a heating pipe, the outer surface of the heating pipe is fixedly connected to an injection pipe at the bottom end, the bottom end of the heating pipe is fixedly connected to a heater, the top end of the heater is fixedly connected to a heating resistor rod, the outer surface of the heating resistor rod is fixedly connected to a plurality of heat conducting plates, and the top end of the inner wall of the heating pipe is fixedly connected to a liquid level sensor; A drive assembly is fixedly connected to the top of the separation tower, the output end of the drive assembly is fixedly connected to a rotating shaft, the bottom end of the rotating shaft is fixedly connected to a mounting bracket, the bottom of the mounting bracket is fixedly connected to support rods near both ends, the bottom ends of the support rods are fixedly connected to stirring rods, the top of the separation tower is fixedly connected to an exhaust pipe, the other end of the exhaust pipe is installed with an adsorption assembly through a connecting pipe, the bottom end of the adsorption assembly is fixedly connected to a docking pipe, and a feed pipe is installed on the outer surface of the separation tower near the top.

2. The novel formaldehyde separation tower for preparing formaldehyde according to claim 1, characterized in that: A discharge pipe is fixedly connected to the bottom of the outer surface of the separation tower, and a valve is installed at the other end of the discharge pipe.

3. The novel formaldehyde separation tower for preparing formaldehyde according to claim 1, characterized in that: A mounting base is installed on the top of the separation tower, and a temperature sensor is installed on the top of the mounting base.

4. The novel formaldehyde separation tower for preparing formaldehyde according to claim 1, characterized in that: A control box is installed on the outer surface of the separation tower, and a box door is rotatably connected to one side of the control box.

5. The novel formaldehyde separation tower for preparing formaldehyde according to claim 1, characterized in that: The driving assembly includes a protective shell, both sides of the protective shell are provided with air holes, and a motor is installed inside the protective shell.

6. The novel formaldehyde separation tower for preparing formaldehyde according to claim 1, characterized in that: The adsorption component includes an adsorption tube, and a plurality of adsorption cottons are installed inside the adsorption tube through a mounting buckle.

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