Steel macrostructure thermal acid generator loses device

Technical Field

The utility model relates to a steel mould low times, in particular relates to a electromagnetic induction heating of the mould, which belongs to the technical field of metal processing.

Background Art

Steel by defect inspection also referred to as macro-inspection, it can reflect metal macro-organizations within the region and defects in shape and distribution characteristics, is an important quality inspection method for steel. Steel is low time of tissue defects test mould, sulfur print test, phosphorus printing inspection, and the like, wherein the mould to the widest test the application. Steel test by mould is carried out in general in the mould, by heating the steel to heat, acid, acid after corrosion observed defects.

Mould of the prior art method of heating acid comprises an electric heating and steam heating the two way, there are a relatively large defect. The steam heating method, the heat efficiency is very low, generally only can reach 30-40%, more important that the steam will reduce the concentration of the acid, impact effect mould, and the heating temperature and the heating time is also difficult to control, the test result accuracy is low, therefore, the less the actual production. To overcome this defect, the Chinese invention Patent "steel heat acid dipping test the etching of the integrated device", marketplace applications: 2013.04.24, authorized announces the number : CN103036501A, discloses a steel heat acid dipping test etching apparatus, which comprises a graphite heat exchanger is provided with acid liquor preheating and circulation system, is arranged inside the graphite heat exchanger two respective independent, bending and mutually equal pipeline, one of the steam pipe, another pipeline acid liquor, the liquor through the heat exchange, the heating, in order to directly access the steam heating of the methods for reducing the concentration of the acid in question. However, the above-mentioned Patent there is still obvious defect: a mode of heating through the heat exchange, the acid, the non-contact heating mode more clearly further reducing the thermal efficiency, a rough estimate can achieve the thermal efficiency of only 20% the left and right, serious energy consumption; the second is non-contact heating mode the heating temperature and the heating time becomes more difficult to control, obviously, this overcome a defect but significantly increased the two other technical improvement of the defect, is not practical.

With the electric heating mode there are three problems: one is that the thermal efficiency is low, generally only can reach 50% the left and right, and the heat energy to discharge the ambient temperature rises, deterioration of the working environment; the second is the safety is poor, the electric heating tube at the high temperature, high corrosive, high conductivity pickling groove, be easy to be eroded and chap leakage, short circuit of the equipment, even the safety accident electric shock to personnel; third, the cost is high, generally good heat conducting property of the material is not acid-resistant, acid-resistant material the heat conduction is bad, therefore, generally adopts the prior art both conducting heat and acid-resistant quartz glass, the quartz glass material, however, large brittleness, poor processing performance, and are not durable, the structure cost and use cost is relatively high; the fourth is can not accurately control the heating temperature and the heating time, more can't realize remote control, it can not accurately control the degree of hot acid etching steel, thereby affecting the organization of steel is low times the accuracy of the test results.

Mould of the prior art there are also acid is serious to volatilize, not only a waste of material, the cost is increased, but also a serious problem of environment pollution. To overcome this defect, the Chinese invention Patent "a steel low times organizations and defect etching system", announces the number : CN203148748U, date of proclamation: 2013.8.21, discloses a hot etching apparatus, through the mist collector, the exhaust fan 1st, and the mould is absorbed and in that the acid mist in the device, thereby reducing the acid mist the pollution of the environment. However, the above-mentioned Patent there is still obvious defect: one is the absorbed acid mist collector, and with the absorption liquid is discharged after the reaction, need for sustained exertion absorption liquid, and liquid can not be recycled, therefore the overall cost is high; the second is a non-airtight structure pickling trough, acid mist collector is positioned at the outside of the pickling trough above, although the under the action of the exhaust fan can absorb the acid mist, but not able to achieve completely absorbed, there is still a large amount of acid mist is directly discharged, the limited role of environmental pollution; the third is the acid mist is high-temperature gas, it is extremely easy to waft expands leisurely, the condensation in the absence of appropriate, even if the increase of the power of the exhaust fan or selected more large volume of acid mist collector, it is difficult to completely absorb the acid mist.

Content of the utility model

In order to overcome the deficiency of the prior art, the inventive purpose of the utility model is to provide a steel heating device by mould, the electromagnetic induction heating method, the heat efficiency is high, it is safe and reliable to use, and can accurately control the etching temperature and time, ensure that the organization of the steel sample is low times the accuracy of the test results, and can effectively reduce the production cost, reduce environmental pollution.

In order to realize the above purpose, the technical solution of the utility model is:a steel macroscopic tissue heat acid attack device, including acid eclipse, the cover comprises a trough body and states the pickling, the states the hot pickling device also comprises an electromagnetic induction heating device, the electromagnetic induction heating device includes the uncap and heating plate, the trough body uncap on the, said heating disc is positioned at the bottom of the inner cavity.

A steel macroscopic tissue heat acid attack device, the states the hot pickling apparatus also includes a control device, the control device comprises an external to the controller and the temperature control timer, located in the interior of the tank body and the thermal resistance, the thermal resistance through the heat resistance of the support is fixed in the groove, the heat resistance is connected with temperature control timing instrument, is connected with the temperature control and timing of the input terminal of the controller, the controller is connected with the output end of the induction disk.

A steel macroscopic tissue heat acid attack device, the heat-resistance measuring the tank and temperature of acid fluid is transmitted to the temperature control and timing of the data, the temperature control timing peculiar temperature and acid pickling time transmission to the controller, when the liquid temperature and the etching time to reach the preset value, controller alarm and control the induction disk to stop heating.

A steel macroscopic tissue heat acid attack device, the device also includes a condensing device states the hot pickling, the condensing apparatus comprises a condenser and a condenser, the condenser is located on the outside of the tank, the condensation pipe is fixed in the cover, the condenser are respectively the inlet and the outlet of the condenser is connected to the export and import.

A steel macroscopic tissue heat acid attack device, said control device further includes a gas detector, the gas detector of the inside of the probe is located in trough portion, said gas detector is connected with the input end of the controller, the controller is also connected with the output end of the condenser.

A steel macroscopic tissue heat acid attack device, the gas detector detecting the acid mist concentration and the concentration is data output to the controller, when the acid mist concentration exceeds the preset maximum value, the controller controls the condenser to accelerate condensation.

A steel macroscopic tissue heat acid attack device, the groove body and a groove cover sealing connection, for states the capping slope of the inclined structure the symmetry of the roof-shaped, the included angle of the inclined surface and the horizontal plane states the capping for 15-45 degrees.

A steel macroscopic tissue heat acid attack device, including the upper cover and the lower cover states the capping, the polytetrafluoroethylene material to the material of the upper cover, the lower cover is made of stainless steel, the condensing tube is fixed on the lower cover.

A steel macroscopic tissue heat acid attack device, the acid pickling bracket and also comprises eclipsepickling basket, states the pickling bracket is fixed on the bottom part of the inner cavity of the groove, the etching on the bracket states the pickling basket, states the pickling basket from the bottom of the distance of the heating plate 30-50mm.

A steel macroscopic tissue heat acid attack device, the groove body, etching bracket, pickling basket and thermal resistance is the polytetrafluoroethylene plate support is formed by, the heating tray, and thermal resistance is coated with the surface of the acid-resistant coating.

Compared with the prior art, has the following advantages:

1, electromagnetic induction device is placed in the least heating, induction disk and other electrical elements, are located in outer pickling trough line, will not be subject to acid, corrosion damage of acid mist, completely solves the problems of the prior art electric heating mode of the existence of leakage, short circuit and the like serious defect of safety accidents, it is very safe and reliable.

2, the electromagnetic induction apparatus for heating liquid, the heat efficiency can reach 95% or more, greatly save the energy consumption, the production cost is reduced, and there is no heat radiation, significantly improve the working environment.

3, the main control device is composed of a CPU, heat resistance, a temperature control timing devices, the etching temperature can be realized, automatic and accurate control of the etching time, ensure that the low time of tissue defects steel sample the accuracy of the test results; on the other hand, also the remote automatic control can be realized, not only can the convenient and quick operation, but also can reduce the on-site operation of hard work.

4, acid etching is provided with a sealing structure and a condensate recovery device, and by condensing the water vapor can be efficiently, all recovery, reduce waste of raw materials, reduce the production cost, on the other hand can also make pickling trough keep constant the concentration of the acid in, ensure that the etching effect, at the same time solves the problems of the prior art also completely the acid mist discharge, serious problems of environmental pollution.

5, etching automatic control system is further equipped with a gas detection device, is instantly detect the acid etching gas concentration of acid mist, when detecting the acid mist concentration higher than the preset value, the controller CPU to control the condensation device accelerate the condensation, in order to ensure that the condensing effect of the whole detection process.

6, acid eclipses the trough and the internal structure of the body is made of polytetrafluoroethylene material, non-deformable, corrosion-resistant, outer side wall of the groove is provided with a plurality of horizontal reinforcing stirrup, so that a groove body firm structure, long service life.

Description of drawings

Figure 1 is the structure diagram of the organization of the steel is low times of the mould of the present utility model.

Figure: pickling 1, groove 11, trough cover 12, etching bracket 13, pickling basket 14, strengthen the stirrup 15, an electromagnetic induction heating device 2, the reaction plate 21, a heating plate 22, the control device 3, the controller 31, temperature control timing instrument 32, thermal resistance 33, gas detector 34, heat resistance support 35, condenser 4, condenser 41, a condenser 42.

Mode of execution

The following combination of the embodiment of Figures and in particular to the present utility model as further explained.

See Figure 1, the utility model provides the steel macroscopic tissue heat acid attack device, including pickling 1 and the electromagnetic induction heating device 2. Wherein pickling 1 which comprises a tank body 11 and a trough cover 12, is preferably provided with the groove 11 and a groove cover 12 enclosure to a seal structure, in order to prevent the mist from leaking out and polluting the environment. An electromagnetic induction heating device including induction disk 21 and heating plate 22, the groove 11 in the uncap 21 is, a heating plate 22 is located in trough portion 11 at the bottom of the inner cavity. Furthermore, preferably, the heating plate 22 and the tank body 11 is arranged between the bottom of the tray 23, in order to avoid the groove 11 local temperature is too high; heating further preferentially 22 acid-resistant coating is arranged on the surface, in order to protect the heating plate 22 from the acid mist corrosion. When in use, the reaction plate 21 is energized, the bit body through electromagnetic induction 11 heating within the 22 heating, in order to heat the groove 11 of the acid. Adopting the electromagnetic induction heating method heating acid, charged component and circuit are located outside the groove, will not be subject to acid corrosion, high safety, and high thermal efficiency of electromagnetic heating, low thermal radiation, is conducive to energy saving and emission reduction.

The utility model provides the steel macroscopic tissue heat acid attack device also comprises a control device 3, the control device 3 comprises a is located in trough portion 11 the external controller 31 and the temperature control timing instrument 32, is located in trough portion and 11 the internal resistor 33. Heat resistance and temperature control timing instrument 32 which is connected with, temperature control timing instrument 32 is connected to the controller 31 of the input end, the control device 31 is connected with the output end of the reaction plate 21. Resistor 33 is coated with an acid resistant coating on the surface, and through the heat resistance support 35 is fixed in the groove 11 the inner. When in use, thermal resistance 33 measure the groove 11 in the temperature of the acid, and the data is transmitted to a temperature control timing instrument 32, temperature control timing instrument 32 the acid liquor temperature and acid etching time transmission to the controller 31, when the liquid temperature and the etching time to reach the preset value, controller 31 alarm and control the induction disk 21 to stop heating. Control device 3 can realize the etching temperature, automatic and accurate control of the etching time, to ensure that the steel sample low time of tissue defects with high accuracy of test results, at the same time also the remote automatic control can be realized, not only enable convenient and quick operation, but also reducing the on-site operation of hard work.

The utility model provides the steel macroscopic tissue heat acid attack device also includes a condensing device 4, is provided with a condensing device 4, the, groove 11 and a groove cover 12 into a sealing structure to the building enclosure. Condensing device 4 is composed of a condenser 41 and a condenser 42 composition, wherein the condenser 41 is located in trough portion 11 of the external, a condenser 42 is fixed in the groove 12 is, a condenser 42 are respectively connected with the inlet and outlet of the condenser 41 is connected with the inlet and the outlet. Condensation device for condensing, the acid mist and water vapor can be liquefied and cooled rapidly flow back to the groove, pumping device adopted in the prior art compared with the way of absorbing acid mist, the absorption speed, high efficiency of absorption, absorption completely, and acid liquor can be recycled, not only can save cost, and can protect the acid concentration constant.

The utility model provides the steel macroscopic tissue heat acid attack device, condensation automatic control can also be realized. In the controlling device 3 to increase in gas detector 34, gas detector 34 is located in trough portion of the probe 11 of internal, the output end of the controller 31 is connected with the input end, and the controller 31 is connected with the output end of the condenser 41. When in use, gas detector 34 instantly detect the groove 11 of the acid mist concentration, and the concentration data output to the controller 31, when detecting the acid mist concentration exceeds the preset maximum value, not the acid mist in a timely manner by condensation, at this moment the controller 31 control condenser 41 accelerating condensation, accelerate the condensation mode of the condensed water can be chosen to increase or reduce the velocity of flow of the entering temperature of condensed water. The control device 3 to the automatic control of the condensation process, to ensure that the acid mist condensation effect.

The utility model provides the steel macroscopic tissue heat acid attack device, cover 12 preferably arranged to slope roof-shaped symmetrical inclined structure, and groove cover 12 the angle between the inclined surface and the horizontal plane for 15-45 degrees, priority is set to 30 degrees. The symmetry of the rooftop of the slope of the tilt structure, the enclosure structure forming a seal, and is favorable for the condensed liquid flow to the bottom of the groove.

Furthermore, preferably a groove cover 12 consists of an upper cover and a lower cover seal, a condenser 42 is fixed on the lower cover. The upper cover is made of a polytetrafluoroethylene material of the acid etch, the lower cover is made of acid-fast eclipse heat conduction made of stainless steel, in order to increase the cooling effect.

The utility model provides the steel macroscopic tissue heat acid attack device, pickling 1 also comprises etching the support 13 and pickling basket 14, etching bracket 13 is fixed in the groove 11 at the bottom of the inner cavity of the, pickling basket 14 in the pickling bracket 13 on, pickling basket 14 from the bottom of the heating plate 22 is at the distance of 30-50mm, the steel sample pickling baskettreats the pickling 14 inner, steel in order to uniform heating of the sample.

The utility model provides the steel macroscopic tissue heat acid attack device, of pickling 11, etching bracket 13, heat resistance support 35 is made of polytetrafluoroethylene material selected, non-deformable, corrosion-resistant, further preferably in the outer side wall of the tank body is provided with a plurality of horizontal reinforcing hoop 15, so that a groove body firm structure, long service life.