Post-dip-coating lost foam white film drying room utilizing casting waste heat
By designing a drying room for lost foam white film after dipping that recovers the waste heat of castings, the waste heat of castings is used to dry the lost foam white film, which solves the problems of waste heat and electricity consumption of castings, and realizes efficient waste heat utilization and low-cost white mold drying.
Patent Information
- Application Number
- CN202422717869.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-08
- Publication Date
- 2025-10-14
- Estimated Expiration
- 2034-11-08
AI Technical Summary
The residual heat after casting is not effectively utilized, resulting in energy waste. At the same time, the drying of lost foam molds requires electricity consumption, which increases production costs.
A drying room for lost foam white film after dip coating is designed to utilize the residual heat of castings. The residual heat of castings is collected through a gas collecting hood, and the hot air is introduced into the drying room through exhaust pipes and ventilation pipes. The control valve adjusts the temperature to achieve efficient recovery of residual heat and uniform drying.
The efficient recovery and reuse of waste heat from castings is achieved, the energy consumption of white mold drying is reduced, the drying effect is improved and the production cost is reduced.
Smart Images
Figure CN223430912U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of preheating and recycling devices in the machinery manufacturing and casting industry, in particular to a drying room for the lost foam white film after dipping and coating using the residual heat of the castings, and specifically to a drying room for drying the lost foam white film after dipping and coating using the residual heat after the castings are poured. Background Art
[0002] Castings are formed by cooling high-temperature molten metal and then demolding it. During the cooling process after casting, a large amount of waste heat needs to be removed. Currently, this heat energy is largely lost to the workshop environment and cannot be effectively utilized. On the one hand, it causes a significant waste of energy. On the other hand, after the lost foam mold is dried, electricity is required to generate heat to create a low-temperature baking environment to remove moisture from the coating after the white mold is dipped. This energy consumption has a significant impact on casting production costs. Summary of the Invention
[0003] The utility model aims to provide a drying room for lost foam white film after dipping, which has simple structure, low manufacturing cost, high casting waste heat recovery efficiency and good white mold drying effect and utilizes casting waste heat.
[0004] To achieve the above objectives, the utility model utilizes the waste heat of castings after dip coating lost foam white film drying room comprises an air collecting hood 1, an exhaust pipe 2, a control valve 3, a lower ventilation pipe 4, an upper ventilation pipe 5, a drying room 6 and a closed passage 7; the closed passage 7 is provided with a movable track 8 for placing castings 9, and a vent is opened above the closed passage; the air collecting hood 1 is used to collect the waste heat of the castings 9, and the lower opening of the air collecting hood covers the vent of the closed passage 7, and the size of the lower opening of the air collecting hood is larger than the vent of the closed passage 7; the inlet end of the exhaust pipe 2 is welded to the outlet end of the air collecting hood 1, and the outlet end of the exhaust pipe 2 is connected to one end of the control valve 3, and the exhaust pipe 2 is fixed to the reinforced concrete wall of the workshop; the outlet pipe at the other end of the control valve 3 is divided into two ways, the lower ventilation pipe 4 and the upper ventilation pipe 5; the lower ventilation pipe 4 and the upper ventilation pipe 5 are respectively connected to the lower and upper parts of one side of the drying room 6, so that the hot air from the waste heat of the castings enters the drying room 6 through the two ventilation pipes.
[0005] The utility model utilizes the residual heat of castings to dry the lost foam white film after dipping and coating, which has the following technical features and
[0006] Beneficial effects:
[0007] 1. The lower opening of the gas collecting hood 1 is covered on the vent hole of the closed channel 7, guiding the hot air from the casting 9 to rise and pass through the exhaust pipe 2, the control valve 3, the lower ventilation pipe 4, and the upper ventilation pipe 5 to the drying room 6 to dry the white mold after dipping. The control valve 3 can effectively control the drying temperature to keep it within the appropriate range.
[0008] 2. The waste heat of castings is recovered and reused, and the white mold drying no longer uses electric energy for heating. The waste heat recovery efficiency of castings is high, and the white mold drying effect is good.
[0009] 3. Simple and compact structure, low production and maintenance costs, easy and efficient use. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 The utility model is a structural schematic diagram of a drying room for lost foam white film after dipping and coating, which utilizes the residual heat of castings.
[0011] Reference numerals: gas collecting hood 1, exhaust pipe 2, control valve 3, lower ventilation pipe 4, upper ventilation pipe 5, drying room 6, closed passage 7, moving track 8, casting 9. DETAILED DESCRIPTION
[0012] The specific implementation of the placement rack for shot blasting the inner cavity of the loader bridge housing casting of the present invention is further described in detail below with reference to the accompanying drawings.
[0013] Figure 1 As shown, the utility model utilizes the waste heat of castings after dip coating lost foam white film drying room includes an air collecting hood 1, an exhaust pipe 2, a control valve 3, a lower ventilation pipe 4, an upper ventilation pipe 5, a drying room 6 and a closed passage 7; the closed passage 7 is provided with a movable track 8 for placing castings 9, and a vent is opened above the closed passage; the air collecting hood 1 is used to collect the waste heat of the castings 9, and the lower opening of the air collecting hood covers the vent of the closed passage 7, and the size of the lower opening of the air collecting hood is larger than the vent of the closed passage 7; the inlet end of the exhaust pipe 2 is welded to the outlet end of the air collecting hood 1, and the outlet end of the exhaust pipe 2 is connected to one end of the control valve 3, and the exhaust pipe 2 is fixed to the reinforced concrete wall of the workshop; the outlet pipe at the other end of the control valve 3 is divided into two ways, a lower ventilation pipe 4 and an upper ventilation pipe 5; the lower ventilation pipe 4 and the upper ventilation pipe 5 are respectively connected to the lower and upper parts of one side of the drying room 6, so that the hot air from the waste heat of the castings enters the drying room 6 through the two ventilation pipes.
[0014] The above-mentioned control valve 3 connects the exhaust pipe 2 with the upper ventilation pipe 4 and the lower ventilation pipe 5 at the rear. Its function is to distribute and regulate the collected waste heat of the castings to ensure that the temperature in the drying room is within an appropriate range. By adopting the setting of the upper ventilation pipe 4 and the lower ventilation pipe 5, the waste heat of the castings passing through the control valve 3 can be divided into two layers, the upper and lower layers, into the drying room, which is beneficial to the uniformity of the upper and lower temperatures in the drying room and ensures the drying effect.
Claims
1. A drying room for lost foam white film after dipping and coating that utilizes the residual heat of castings, characterized by: It comprises an air collecting hood (1), an exhaust pipe (2), a control valve (3), a lower ventilation pipe (4), an upper ventilation pipe (5), a drying room (6) and a closed channel (7); a movable track (8) for placing a casting (9) is provided in the closed channel (7), and an air vent is provided above the closed channel; the air collecting hood (1) is used to collect waste heat from the casting, and the lower opening of the air collecting hood covers the air vent of the closed channel (7), and the size of the lower opening of the air collecting hood is larger than the air vent of the closed channel (7); the exhaust pipe The inlet end of the exhaust pipe (2) is welded to the outlet end of the gas collecting hood (1), and the outlet end of the exhaust pipe (2) is connected to one end of the control valve (3). The exhaust pipe (2) is fixed to the reinforced concrete wall of the workshop; the outlet pipe at the other end of the control valve (3) is divided into two paths: a lower ventilation pipe (4) and an upper ventilation pipe (5); the lower ventilation pipe (4) and the upper ventilation pipe (5) are respectively connected to the lower part and the upper part of one side of the drying room (6), so that the hot air of the residual heat of the castings enters the drying room (6) through the two ventilation pipes.