Constant-temperature mold casting device
By setting up heat exchange medium channels and infrared temperature detectors inside the copper mold, and combining the control of hot steam and cooling water, the cracking and deformation problems caused by uneven temperature during the casting process of the copper mold are solved, and constant temperature control of the copper mold is achieved, which improves the service life of the mold and reduces production costs.
Patent Information
- Application Number
- CN202520208423.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-10
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-02-10
AI Technical Summary
In the existing technology, uneven temperature control during the casting process of copper molds leads to rapid heating and cooling, which can easily cause cracking and deformation, reduce mold life and increase production costs.
A constant-temperature mold casting device is adopted. By setting up a heat exchange medium channel inside the copper mold, combined with an infrared temperature detector and a DCS control module, the temperature of the copper mold is balanced by switching between hot steam and cooling water, which reduces thermal stress and avoids cracking and deformation.
It effectively improves the service life of copper molds, reduces thermal stress in molds, extends the service life of molds, and reduces production costs.
Smart Images
Figure CN223775989U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a constant temperature state mould casting device belongs to nonferrous metal technical field. BACKGROUND
[0002] Copper smelting anode casting uses copper mould or steel mould, and adopts disc casting mode to cast anode plate. In early casting stage, due to low mould temperature, and mould does not roast directly to start casting anode plate, will lead to mould to appear hot, easy to deform, crack, in addition, in the process of casting, the temperature of the mold will continue to rise, and the process of casting will use spray water to cool the surface of the mold, because it is impossible to control the uniformity of water spraying, the mold is subjected to rapid cooling and rapid heating, the surface of the mold will crack and the cooling cannot be controlled to deform, resulting in low service life of the mold, and the qualified anode plate cannot be cast, thereby leading to low service life of the mold, and high secondary treatment cost.
[0003] At present, in view of the problem of low temperature before mould casting, natural gas roasting method is usually adopted before casting to make the temperature of the mould rise. At the same time, external spray water method is widely used in the process of casting to spray cooling water on the upper and lower surfaces of the mould to control the surface temperature of the copper mould.
[0004] But the above method still has certain defects: first, because the mould has excellent heat conduction performance, natural gas roasting can only roast one copper mould, and there are 18 copper moulds in a disc, and the thermal conductivity of copper is good, and each copper mould is roasted in turn, and the temperature of the previously roasted copper mould will decrease, so that the roasting effect of the copper mould of the whole disc is poor. Secondly, by using the external spray water method, cooling water is sprayed on the upper and lower surfaces of the mould to control the surface temperature of the copper mould. Since the spray water can only control the surface temperature of the mould, it cannot adjust the internal temperature of the mould, and there is thermal stress in the internal of the mould during casting. At the same time, the spray water cannot accurately control the temperature of the mould, and can only control a small part of the outer surface of the mould in a certain temperature range, so that the service life of the mould is still very low, and the production cost is high. CONTENT OF THE UTILITY MODEL
[0005] In order to overcome the defects in the prior art, the utility model designs a constant temperature state mould casting device, which can well control the temperature of the mould and improve the service life of the mould.
[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:
[0007] A constant temperature state mould casting device, comprising a copper mould, a heat exchange medium channel is arranged in the copper mould, a water inlet pipe is communicated with the input end of the heat exchange medium channel, and a water outlet pipe is communicated with the output end of the heat exchange medium channel;
[0008] The water inlet pipe is connected with an input pipe through a liquid rotary joint, the input pipe comprises a cooling water input pipe and a hot steam input pipe, and the hot steam input pipe is connected with the cooling water input pipe through a water-steam switching electromagnetic valve;
[0009] The water outlet pipe is connected with a heat exchange return water output pipe through a liquid rotary joint.
[0010] Further, the copper mold is provided with an infrared temperature detector for monitoring the surface temperature of the copper mold, and the infrared temperature detector is electrically connected with a DCS control module.
[0011] Further, the water inlet pipe is provided with a water inlet adjusting valve.
[0012] Further, the heat exchange medium channel forms a mountain-shaped structure inside the copper mold.
[0013] Further, the water-steam switching electromagnetic valve and the water inlet adjusting valve are electrically connected with the DCS control module.
[0014] Compared with the prior art, the utility model has the following characteristics and beneficial effects:
[0015] The utility model discloses a constant temperature cooling water-cooled copper mold, which can evenly control the operation temperature of the copper mold, reduce the thermal stress effect in the copper mold, slow down the deformation of the copper mold and prevent the cracking of the copper mold due to thermal stress, and improve the service life of the mold. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is the connecting structure schematic diagram of the utility model.
[0017] The reference signs are: 1, copper mold;2, heat exchange medium channel;3, water inlet pipe;4, water outlet pipe;5, water inlet adjusting valve;6, liquid rotary joint;7, heat exchange return water output pipe;8, cooling water input pipe;
[0018] 9, hot steam input pipe;10, water-steam switching electromagnetic valve;11, infrared temperature detector;12, DCS control module. DETAILED DESCRIPTION
[0019] The utility model will be described in more detail in combination with examples.
[0020] Please refer to Figure 1 The constant temperature mold casting device of the embodiment comprises a copper mold 1, a heat exchange medium channel 2 is arranged in the copper mold 1, a water inlet pipe 3 is communicated with the input end of the heat exchange medium channel 2, and a water outlet pipe 4 is communicated with the output end of the heat exchange medium channel 2.
[0021] The water inlet pipe 3 is connected with an input pipe through a liquid rotary joint 6, the input pipe comprises a cooling water input pipe 8 and a hot steam input pipe 9, the hot steam input pipe 9 is connected with the cooling water input pipe 8 through a water-steam switching electromagnetic valve 10;
[0022] The water outlet pipe 4 is connected with a heat exchange backwater output pipe 7 through the liquid rotary joint 6.
[0023] Further, the copper mold 1 is provided with an infrared temperature detector 11 for monitoring the surface temperature of the copper mold 1, and the infrared temperature detector 11 is electrically connected with a DCS control module 12.
[0024] Further, the water inlet pipe 3 is provided with a water inlet adjusting valve 5.
[0025] Further, the heat exchange medium channel 2 forms a mountain-shaped structure inside the copper mold 1.
[0026] Further, the water-steam switching electromagnetic valve 10 and the water inlet adjusting valve 5 are electrically connected with the DCS control module 12.
[0027] The working principle of the utility model is: in the early stage of casting, hot steam is input into the water channel of the copper mold 1 through the hot steam input pipe 9, the temperature of the copper mold 1 is raised, and the temperature in the copper mold 1 is slowly raised, at the same time, the temperature is controlled between 140 DEG C ~ 160 DEG C in the process that the overall temperature of the copper mold 1 reaches the normal casting temperature, so that the cold copper mold 1 does not encounter the hot melt and appear the sudden heating phenomenon.
[0028] After the casting starts, with the casting, the temperature of the copper mold 1 is raised, the water-steam switching electromagnetic valve 10 is adjusted, the hot steam is switched to the cooling water, the water flow is controlled by the water inlet adjusting valve 5, and then the surface temperature of the copper mold 1 is stably controlled in a certain range. The constant temperature cooling of the copper mold 1 by water cooling can balance the working temperature of the copper mold 1, reduce the thermal stress effect of the copper mold 1, slow down the deformation of the copper mold 1 and prevent the cracking of the copper mold 1 due to thermal stress, and improve the service life of the mold.
[0029] In the description of the utility model, it should be explained that the terms "in", "out", "up" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model.
[0030] In the description of the utility model, it is necessary to explain, unless another explicit provision and limitation, term " connection " should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through intermediate medium, can be two elements inside the communication。For ordinary skilled person in the art, the specific meaning of the above-mentioned term in the utility model can be understood according to the specific circumstances.
[0031] Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary skilled person in the art without creative labor belong to the scope of protection of the utility model.
Claims
1. A constant temperature mold casting device comprising a copper mold (1), characterized in that: The copper mold (1) is internally provided with a heat exchange medium channel (2), the input end of the heat exchange medium channel (2) is communicated with a water inlet pipe (3), and the output end of the heat exchange medium channel (2) is communicated with a water outlet pipe (4); The water inlet pipe (3) is connected with an input pipeline through a liquid rotary joint (6), the input pipeline comprises a cooling water input pipe (8) and a hot steam input pipe (9), and the hot steam input pipe (9) is connected with the cooling water input pipe (8) through a water-steam switching electromagnetic valve (10); The water outlet pipe (4) is connected with a heat exchange return water output pipe (7) through a liquid rotary joint (6).
2. A constant temperature mold casting device as defined in claim 1, wherein: An infrared temperature detector (11) for monitoring the surface temperature of the copper mold (1) is arranged on the copper mold (1), and the infrared temperature detector (11) is electrically connected with a DCS control module (12).
3. A constant temperature mold casting device as defined in claim 2, wherein: A water inlet adjusting valve (5) is arranged on the water inlet pipe (3).
4. A constant temperature mold casting device as defined in claim 1, wherein: The heat exchange medium channel (2) forms a mountain-shaped structure inside the copper mold (1).
5. A constant temperature mold casting device as defined in claim 3, wherein: The water-steam switching electromagnetic valve (10) and the water inlet adjusting valve (5) are electrically connected with the DCS control module (12).