Environment-friendly drying room for polystyrene mold core
By installing a purification box and activated carbon system in the drying room, the problem of formaldehyde release from the sprayed insulation material was solved, achieving effective air purification and protection of workers' health.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-07
- Publication Date
- 2026-03-24
AI Technical Summary
In the current polystyrene core processing, the sprayed insulation layer material releases a large amount of formaldehyde during the drying process, polluting the air and affecting workers' health.
A hollow rectangular purification box is installed inside the drying room. The purification box contains heating pipes and a screen. Activated carbon is placed on the screen. A centrifugal fan is used to send air into the purification box for heating, and the activated carbon adsorbs formaldehyde to achieve air purification.
It effectively adsorbs formaldehyde inside the drying room, improves the health environment for workers, and ensures air quality during the drying process.
Smart Images

Figure CN224034150U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a polystyrene mould core environment-friendly drying room belongs to foundry facilities field relates to the formaldehyde removal system of drying room internal air. BACKGROUND
[0002] Polystyrene mould core, commonly known as lost foam, is made of polystyrene material and is externally sprayed with a ceramic heat insulation layer. The polystyrene mould core processing process includes the steps of cutting, engraving, externally spraying a heat insulation layer, and drying. The heat insulation layer material sprayed is ceramic powder plus resin glue. The resin glue releases a large amount of formaldehyde during the heating and drying process, pollutes the air, and affects the respiratory health of workers. Therefore, a facility that can adsorb formaldehyde inside the drying room is needed.
[0003] A large-scale automatic temperature control and dehumidification drying room belongs to a foundry model drying supporting equipment. The existing large-scale drying room is improved by laying a track for transporting models on the ground and uniformly arranging multiple water vapor collectors under the roof. Water vapor is sucked into a centrifugal fan through an air inlet pipe, dried in a heating box after being pressurized, and then enters an air outlet pipe. The hot air after drying is uniformly sent to the inside and outside of the model through multiple steel wire hoses. The large-scale automatic temperature control and dehumidification drying room includes a track, a heat preservation wall, a heat preservation door, a heat preservation roof, an equipment cabin, a control box, a centrifugal fan, a high-speed motor, a heating box, a sensor, an air inlet pipe, a collector, an air outlet pipe, a steel wire hose, a signal line, and a power line.
[0004] A traditional Chinese medicine drying room relates to traditional Chinese medicine processing equipment field, including drying room, drying assembly and rotation assembly, the front side of drying room is hinged with door, the top wall of drying room is provided with exhaust fan, the number of drying assembly is two and is arranged on the left and right side walls of drying room, the number of rotation assembly is two and is all arranged in the cavity of drying room. The traditional Chinese medicine drying room, by pushing the rack with traditional Chinese medicinal materials to the turntable, then under the action of drying assembly, hot air is blown to the rack, wherein the fan-shaped outlet
[0005] Circulating air can expand the blowing range, and under the action of the rotation assembly, the rack can be driven to rotate, ensuring that the traditional Chinese medicinal materials at different positions on the rack can face the blown hot air. By expanding the blowing range and ensuring that different positions can face the blowing, the drying degree is synchronized, and the drying efficiency is ensured.
[0006] The large automatic temperature control dehumidifying drying room adopts a track, a heat preservation wall, a heat preservation door, a heat preservation roof, an equipment cabin, a control box, a centrifugal fan, a high-speed motor, a heating box, a sensor, an air inlet pipeline, a collector, an air outlet pipeline and a steel wire hose to dry a model, and the above facilities cannot purify air in the drying room; the traditional Chinese medicine drying room adopts a drying room, a drying assembly, a rotating assembly, a door and an exhaust fan to dry traditional Chinese medicines. Utility model content
[0007] The utility model relates to a polystyrene mould core environment -friendly drying room provides the drying room of hollow cuboid shape, install the purification box of hollow cuboid shape in the upper portion of drying room, install heating pipe in the inside of purification box, install screen on the bottom of purification box, place activated carbon on the screen, centrifugal fan in the inside of drying room sends air into purification box and heats, the formaldehyde contained in air heating and flowing process is adsorbed by activated carbon, to reach the effect of purifying air.
[0008] The utility model discloses a polystyrene mould core environment -friendly drying room includes drying room 1, the front of drying room 1 has installed rolling slats door 2, the top of inside drying room 1 has installed purification box 3, purification box 3 is connected with drying room 1 through hook 4, the inside of purification box 3 has installed heating pipe 6, the bottom of purification box 3 has installed screen 5, the upper surface of screen 5 has placed activated carbon 7, centrifugal fan 9 is installed in the inside of drying room 1, centrifugal fan 9 is connected with the side of purification box 3 through air supply pipe 8, centrifugal fan 9 is connected with high -speed motor 10, temperature sensing head 12 is installed in the inside of drying room 1, temperature -controlled switch 11 is installed on the upper surface of switch board, temperature -controlled switch 11 is connected with heating pipe 6, high -speed motor 10, temperature -controlled switch 11 through power line 13.
[0009] Further, the drying room 1 is hollow cuboid shape, the wall thickness is greater than 10cm, the rolling slats door 2 installed in the front of drying room 1 is rectangle.
[0010] Further, the purification box 3 is hollow cuboid shape, the height is 20-30cm, the J type hook 4 installed on the upper surface of four corners of purification box 3 is connected with the four lifting eyes below the top plate of drying room 1.
[0011] Further, the inside of purification box 3 is installed 6-10 U type heating pipes 6.
[0012] Further, the bottom plate of purification box 3 is the screen 5 made of stainless steel, the diameter of screen 5 mesh is 1-3cm, more than 50 activated carbons 7 are evenly placed on the screen 5.
[0013] Further, the activated carbon 7 is hollow cylinder, the external diameter is greater than 5cm.
[0014] Beneficial effects: the current processing process of polystyrene mold core is the steps of cutting, carving, external spraying of heat insulation layer, drying, the sprayed heat insulation layer material is ceramic powder plus resin glue, the resin glue will release a large amount of formaldehyde and melamine in the heating and drying process, pollute the air, affect the respiratory health of workers.
[0015] The polystyrene mold core environment-friendly drying room adopts a hollow cuboid-shaped drying room, a hollow cuboid-shaped purification box is installed at the upper part of the inside of the drying room, a heating pipe is installed in the inside of the purification box, a screen is installed at the bottom of the purification box, and activated carbon is placed on the screen, and a centrifugal fan in the inside of the drying room sends air into the purification box for heating, and the air is adsorbed by the activated carbon during the heating and flowing process, so that the formaldehyde contained in the air is adsorbed, and the effect of purifying the air is achieved. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is a front view of a polystyrene mold core environment-friendly drying room;
[0017] Figure 2 It is a structure diagram of the purification box, the hook, the screen, the heating pipe, the activated carbon, the air supply pipe, the centrifugal fan and the high-speed motor;
[0018] Figure 3 It is a connection diagram of the heating pipe, the high-speed motor, the temperature control switch, the temperature sensing head and the power line;
[0019] In the drawing, 1, drying room (internal temperature < 50 DEG C); 2, roller shutter door; 3, purification box; 4, hook; 5, screen; 6, heating pipe (AC 380V / 5kw); 7, activated carbon; 8, air supply pipe; 9, centrifugal fan; 10, high-speed motor (AC 380V / 1kw); 11, temperature control switch (AC 380V / 200A); 12, temperature sensing head (AC 220V / 0.2A); 13, power line. DETAILED DESCRIPTION
[0020] The structure and shape of the utility model are described in detail in combination with the drawings and reference numerals:
[0021] Example one
[0022] Combined width Figures 1-3The utility model provides a kind of polystyrene mould core environmental protection type drying room, including drying room 1, the drying room 1 is used to seal hot air, the front of the drying room 1 is equipped with roll-up door 2, the roll-up door 2 is used to enter and exit polystyrene mould core, the top inside the drying room 1 is equipped with purification box 3, the purification box 3 is used to support screen 5 and heating pipe 6, the purification box 3 is connected with drying room 1 by hook 4, the hook 4 is used to position purification box 3, the inside of the purification box 3 is equipped with heating pipe 6, the heating pipe 6 is used to heat air, the bottom of the purification box 3 is equipped with screen 5, the screen 5 is used to lift activated carbon 7 and export hot air in purification box 3, the screen 5 is placed with activated carbon 7, the activated carbon 7 is used to adsorb formaldehyde in the inside of drying room 1, centrifugal fan 9 is installed in the inside of drying room 1, the centrifugal fan 9 is used to send air in the inside of drying room 1 into purification box 3, the centrifugal fan 9 is connected with the side of purification box 3 by air supply pipe 8, the air supply pipe 8 is used to guide the air discharged by centrifugal fan 9 into purification box 3, the centrifugal fan 9 is connected with high-speed motor 10, the high-speed motor 10 is used to drive centrifugal fan to rotate, temperature sensing head 12 is installed in the inside of drying room 1, the temperature sensing head 12 is used to sense temperature in the inside of drying room 1, temperature control switch 11 is installed on the top of switch board, and the temperature control switch 11 is connected with heating pipe 6, high-speed motor 10, temperature control switch 11 by power line 13.
[0023] Referring to the drawings Figure 1 The drying room 1 is hollow rectangular parallelepiped shape, and the wall thickness is greater than 10 cm.
[0024] Referring to the drawings Figure 2 The purification box 3 is hollow rectangular parallelepiped shape, and the height is 20-30 cm.
[0025] Referring to the drawings Figure 2 6-10 U-shaped heating pipes 6 are installed in the inside of the purification box 3.
[0026] Referring to the drawings Figure 2 The bottom plate of the purification box 3 is the screen 5 made of stainless steel, the diameter of the screen 5 mesh is 1-3 cm, and more than 50 activated carbon 7 is uniformly placed on the screen 5.
[0027] Referring to the drawings Figure 2 The activated carbon 7 is hollow cylindrical shape, and the external diameter is greater than 5 cm.
[0028] In combination with the above simple description of the use of the polystyrene mold core drying room, the worker opens the roller shutter door 2, places the polystyrene mold core sprayed with a ceramic thermal insulation layer on a trolley, and then pushes it into the drying room 1, closes the roller shutter door 2, and the worker opens the temperature control switch 11. The heating pipe 6 quickly generates heat, and the high-speed motor 10 drives the centrifugal fan to rotate quickly, sending the air inside the drying room 1 into the purification box 3. The air inside the purification box 3 is heated by the heating pipe 6 and flows out from the lower screen 5 to blow on the polystyrene mold core. The heated air is sucked into the purification box 3 again after circulating around the polystyrene mold core, then sent into the purification box 3 after being pressurized, and the air inside the purification box 3 again contains formaldehyde released by the ceramic thermal insulation layer. The air containing formaldehyde circulates and heats in the purification box 3, and most of the formaldehyde is adsorbed by the activated carbon 7. The hot air purified by the activated carbon 7 is blown again to the four corners of the polystyrene mold core through the screen 5. When the temperature inside the drying room 1 rises to 50℃, the temperature sensing head 12 sends a closing instruction to the temperature control switch 11, and the heating pipe 6 and the high-speed motor 10 stop working. When the temperature inside the drying room 1 drops to 40℃, the temperature sensing head 12 sends an opening instruction to the temperature control switch 11, and the heating pipe 6 and the high-speed motor 10 start working. After 4-5h, the worker closes the temperature control switch 11, opens the roller shutter door 2, and pushes the polystyrene mold core out of the drying room 1 when the surface temperature of the polystyrene mold core drops to below 30℃. The activated carbon 7 in the purification box 3 is replaced after 5-10 days of continuous use.
Claims
1. A polystyrene mold core environment-friendly drying room, comprising a drying room, characterized in that The front of the drying room is provided with a rolling door, the top of the inside of the drying room is provided with a purification box, the purification box is connected with the drying room through a hook, the inside of the purification box is provided with a heating pipe, the bottom of the purification box is provided with a screen, the screen is placed with activated carbon, a centrifugal fan is arranged in the inside of the drying room, the centrifugal fan is connected with the side of the purification box through a air supply pipe, the centrifugal fan is connected with a high-speed motor, a temperature sensing head is arranged in the inside of the drying room, a temperature control switch is arranged on the top of the power distribution cabinet, and the temperature control switch is connected with the heating pipe, the high-speed motor and the temperature control switch through a power line.
2. The polystyrene mold core environmental protection type drying room according to claim 1, characterized in that The drying room is a hollow rectangular cuboid, and the wall thickness is greater than 10 cm.
3. The polystyrene core environmental protection type drying room according to claim 1, characterized in that The rolling door installed in front of the drying room is a rectangle.
4. The polystyrene mold core environmental protection type drying room according to claim 1, characterized in that The purification box is a hollow rectangular cuboid, and the height is 20-30 cm.
5. The polystyrene core environmental protection type drying room according to claim 1, characterized in that The inside of the purification box is provided with 6-10 U-shaped heating pipes.
6. The polystyrene core environmental protection type drying room according to claim 1, characterized in that The bottom plate of the purification box is a stainless steel screen, the diameter of the screen mesh is 1-3 cm, and more than 50 activated carbons are uniformly placed on the screen. The activated carbon is a hollow cylinder, and the outer diameter is greater than 5 cm.