Micro-negative pressure steam heating wax transfer barrel

Abstract

The utility model relates to the field of wax material preparation, in particular to a micro negative pressure steam heating wax transfer barrel, which is characterized in that a steam generator is arranged on one side of a tank body, a water tank is arranged on the steam generator, a steam outlet pipe is fixed on the top end face of the tank body, a negative pressure exhaust fan is arranged on the steam outlet pipe, and a wax temperature probe is arranged on the tank body; the wax temperature probe is used for measuring the temperature of wax liquid in the tank body, the tank body is provided with a wax outlet pipe, the wax outlet pipe is communicated with the tank body, the wax outlet pipe is provided with a pump inlet heat preservation valve, the bottom of the tank body is provided with a deslagging drain pipe, the deslagging drain pipe is provided with a deslagging drain valve, and spiral coils are wound on the outer rings of the tank body and the deslagging drain pipe. According to the constant-temperature wax liquid heating device disclosed by the utility model, wax liquid is heated by utilizing temperature-controllable constant-temperature steam, so that the wax liquid is heated more safely and reliably, and the potential safety hazard that a fire easily occurs when heat-conducting oil is heated is effectively avoided.

Description

Technical Field

[0001] The utility model relates to the field of wax material preparation, in particular to a slightly negative pressure steam heating wax transfer barrel. Background Art

[0002] Lost wax casting: Select suitable investment pattern materials (such as paraffin) to make investment patterns; repeat the process of applying refractory coating and sprinkling refractory sand on the investment pattern, harden the mold shell and dry it, then melt the internal investment pattern to obtain a mold cavity; bake the mold shell (and burn the remaining investment pattern materials) to obtain sufficient strength; pour the required metal material; solidify and cool, remove the sand after shelling, and obtain a high-precision finished product.

[0003] Traditional wax liquid heating uses thermal oil heating. High-temperature wax liquid is a flammable item, so using thermal oil heating poses a safety hazard. Utility Model Content

[0004] The utility model provides a slightly negative pressure steam heating wax transfer barrel.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The steam inlet of described outer combustion gas heating unit is connected with the steam inlet of described outer combustion gas heating unit, and the steam inlet of described outer combustion gas heating unit is connected with the steam inlet of described outer combustion gas heating unit. A connecting spiral coil, the other end of the drain pipe is connected to the water tank, the drain pipe is provided with a drain valve, a sinking pipe is provided in the tank body, a baffle is fixed on the end of the sinking pipe located inside the tank body, a plurality of wax outlets are equidistantly arranged in a circular manner on the end of the sinking pipe located in the tank body, and the wax liquid in the sinking pipe can be discharged into the tank body through the wax outlet, a liquid outlet pipe is provided on one side of the tank body, the liquid outlet pipe is connected to the tank body, a float level gauge is fixed on the top of the tank body, a wax inlet is provided on the top of the sinking pipe, the wax inlet is connected to the sinking pipe, a wax inlet valve is provided on the wax inlet, a steam amplifier is fixed on the top of the sinking pipe, the steam amplifier is connected to the sinking pipe, a pressure differential balancing pipe is fixed on the top end face of the sinking pipe, one end of the pressure differential balancing pipe is connected to the sinking pipe, the other end of the pressure differential balancing pipe passes through the steam amplifier and is connected to the tank body, and the pressure differential balancing pipe is provided with a baffle at the port of the steam amplifier.

[0007] A steam generator is provided on one side of the tank body, a water tank is provided on the steam generator, a steam outlet pipe is fixed on the top end face of the tank body, one end of the steam outlet pipe is connected to the tank body, and the other end of the steam outlet pipe is connected to the water tank, a negative pressure exhaust fan is provided on the steam outlet pipe, the tank body is provided with a wax temperature probe, the wax temperature probe is used to measure the temperature of the wax liquid in the tank body, the tank body is provided with a wax outlet pipe, the wax outlet pipe is connected to the tank body, a pump inlet insulation valve is provided on the wax outlet pipe, an electric gear pump is provided on the wax outlet pipe, a slag discharge drain pipe is provided at the bottom of the tank body, the slag discharge drain pipe is connected to the tank body, a slag discharge drain valve is provided on the slag discharge drain pipe, the outer circles of both the tank body and the slag discharge drain pipe are wound with spiral coils, the spiral coils are spirally wound on the outer shells of the tank body and the slag discharge drain pipe, and the air inlet of the spiral coil is provided with a steam inlet pipe.

[0008] Furthermore, the outer layer of the tank body is wrapped with a thickened thermal insulation cotton layer.

[0009] Furthermore, a proximity switch is provided on one side of the float level gauge.

[0010] Furthermore, a wax temperature probe is provided on one side of the tank body.

[0011] Furthermore, a pump inlet valve is provided on the liquid outlet pipe, and an electric gear pump is provided on the liquid outlet pipe.

[0012] Beneficial effects:

[0013] The utility model utilizes high-temperature steam to heat the wax liquid, making the wax liquid heating safer and more reliable, and effectively avoiding the potential safety hazard of fire caused by heating with heat-conducting oil.

[0014] The utility model provides a spiral coil wound around the outer ring of the tank body, and high-temperature steam is introduced into the spiral coil to heat the wax liquid. The spiral coil can ensure that the tank body is heated evenly and accelerate the temperature rise speed of the wax liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The main structure of the utility model is shown in FIG. Figure 1 ;

[0016] Figure 2 The main structure of the utility model is shown in FIG. Figure 2 ;

[0017] Figure 3 For this utility model Figure 2 A partial enlarged view of middle A.

[0018] In the figure: 1 tank body, 2 thickened insulation cotton layer, 3 water tank, 4 steam generator, 5 steam outlet pipe, 6 negative pressure exhaust fan, 7 slag discharge pipe, 8 slag discharge valve, 9 spiral coil, 10 steam inlet pipe, 11 steam electric valve, 12 drain pipe, 13 drain valve, 14 bottom pipe, 15 baffle, 16 wax outlet, 17 wax temperature probe, 18 liquid outlet pipe, 19 pump inlet valve, 20 electric gear pump, 21 float level gauge, 22 proximity switch, 23 wax inlet, 24 wax inlet valve, 25 steam enlargement barrel, 26 differential pressure balance pipe, 27 baffle, 28 tangent. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0021] Reference Figure 1-3A slightly negative pressure steam heating wax transfer barrel comprises a tank body 1, the outer layer of the tank body 1 is wrapped with a thickened heat-insulating cotton layer 2, a water tank 3 is arranged on one side of the tank body 1, a steam generator 4 is arranged on the water tank 3, a steam outlet pipe 5 is fixed to the top end face of the tank body 1, one end of the steam outlet pipe 5 is connected to the tank body 1, and the other end of the steam outlet pipe 5 is connected to the water tank 3, a negative pressure exhaust fan 6 is arranged on the steam outlet pipe 5, a slag discharge pipe 7 is arranged at the bottom of the tank body 1, the slag discharge pipe 7 is connected to the tank body 1, a slag discharge valve 8 is arranged on the slag discharge pipe 7, and the outer circles of the tank body 1 and the slag discharge pipe 7 are both wound with spiral coils 9 The spiral coil 9 is spirally wound around the outer shells of the tank body 1 and the slag discharge pipe 7. The air inlet of the spiral coil 9 is provided with a steam inlet pipe 10. One end of the steam inlet pipe 10 is communicated with the air inlet of the spiral coil 9, and the other end of the steam inlet pipe 10 is communicated with the steam outlet of the steam generator 4. A steam electric valve 11 is provided on the steam inlet pipe 10. A drain pipe 12 is provided at the air outlet of the spiral coil 9. One end of the drain pipe 12 is communicated with the spiral coil 9, and the other end of the drain pipe 12 is communicated with the water tank 3. A drain valve 13 is provided on the drain pipe 12. A bottom sink pipe 14 is provided in the tank body 1. A baffle 15 is fixed to one end of the bottom pipe 14 located inside the tank body 1, and a plurality of wax outlets 16 are arranged equidistantly in a circular arrangement at one end of the bottom pipe 14 located inside the tank body 1. The wax liquid in the bottom pipe 14 can be discharged into the tank body 1 through the wax outlet 16. A wax temperature probe 17 is arranged on one side of the tank body 1, and a liquid outlet pipe 18 is arranged on one side of the tank body 1. The liquid outlet pipe 18 is connected to the tank body 1, and a pump inlet valve 19 is arranged on the liquid outlet pipe 18. An electric gear pump 20 is arranged on the liquid outlet pipe 18. A float level gauge 21 is fixed to the top of the tank body 1, and a proximity switch 22 is arranged on one side of the float level gauge 21. The bottom pipe 14 A wax inlet 23 is provided at the top, and the wax inlet 23 is connected to the sinking tube 14. A wax inlet valve 24 is provided on the wax inlet 23. A steam amplifier 25 is fixed on the top of the sinking tube 14, and the steam amplifier 25 is connected to the sinking tube 14. A pressure differential balance tube 26 is fixed to the top end face of the sinking tube 14. One end of the pressure differential balance tube 26 is connected to the sinking tube 14, and the other end of the pressure differential balance tube 26 passes through the steam amplifier 25 and is connected to the tank body 1. The pressure differential balance tube 26 is provided with a baffle 27 at the port of the steam amplifier 25. The baffle 27 is used to prevent wax liquid from entering the pressure differential balance tube 26 and causing the pressure differential balance tube 26 to be blocked.

[0022] Working principle:

[0023] The wax liquid enters the settling tube 14 along the tangent 28 of the upper end of the settling tube 14 through the wax inlet 23, and the wax liquid entering the settling tube 14 is discharged into the tank body 1 through the wax outlet 16. The moisture and ash in the wax liquid will sink to the bottom and be discharged through the conical bottom slag discharge pipe 7 during the slowly rising process of the wax liquid level. The slowly rising wax liquid level pushes the float level gauge 21 to operate, and the float level gauge 21 operates to trigger the proximity switch 22. The proximity switch 22 triggers the wax inlet valve 24 to transmit a signal, and the wax inlet valve 24 receives the signal and closes and alarms. The wax inlet valve 24 is closed to stop transporting the wax liquid to the settling tube 14, and the steam generator 4 starts to generate high-temperature water vapor. The high-temperature water vapor enters the spiral coil 9 through the steam inlet pipe 10. The spiral coil 9 passes the high-temperature water vapor to start heating the wax liquid in the tank body 1. When the wax liquid enters the tank body 1, the negative pressure exhaust fan 6 is started, and the negative pressure exhaust fan 6 starts to extract the wax liquid in the tank body 1. The steam outlet pipe 5 transports the distilled water formed by the water vapor extracted by the negative pressure exhaust fan 6 and cooled to the water tank 3, thereby achieving the purpose of heat recovery and water recovery. A wax temperature probe 17 is provided on the tank body 1. When the wax temperature probe 17 measures that the wax liquid temperature reaches the set value, the wax temperature probe 17 triggers the steam electric valve 11 to transmit a signal, and the steam electric valve 11 receives the signal and closes. The steam electric valve 11 closes the steam inlet pipe 10 to stop transporting high-temperature water vapor to the spiral coil 9 to avoid aging of the wax liquid due to excessive temperature of the wax liquid. The steam trap 13 is opened, and the distilled water formed by the steam circulation in the spiral coil 9 flows into the water tank 3 through the steam trap 12, thereby achieving the purpose of heat recovery and water recovery. The processed wax liquid is transported to the next working unit through the electric gear pump 20. The outer layer of the tank body 1 is provided with a thickened thermal insulation cotton layer 2. The thickened thermal insulation cotton layer 2 can avoid excessive energy loss caused by excessive heat dissipation of the tank body 1, which is more energy-saving.

[0024] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A slightly negative pressure steam heating wax transfer barrel, comprising a tank body (1), characterized in that: A water tank (3) is provided on one side of the tank body (1), a steam generator (4) is provided on the water tank (3), a steam outlet pipe (5) is fixed on the top end surface of the tank body (1), one end of the steam outlet pipe (5) is connected to the tank body (1), and the other end of the steam outlet pipe (5) is connected to the water tank (3), a negative pressure exhaust fan (6) is provided on the steam outlet pipe (5), a slag discharge pipe (7) is provided at the bottom of the tank body (1), the slag discharge pipe (7) is connected to the tank body (1), a slag discharge valve (8) is provided on the slag discharge pipe (7), and the outer circles of both the tank body (1) and the slag discharge pipe (7) are wound with a spiral coil (9) ), the spiral coil (9) is spirally wound on the outer shells of the tank body (1) and the slag discharge pipe (7), the air inlet of the spiral coil (9) is provided with a steam inlet pipe (10), one end of the steam inlet pipe (10) is connected to the air inlet of the spiral coil (9), and the other end of the steam inlet pipe (10) is connected to the steam outlet of the steam generator (4), a steam electric valve (11) is provided on the steam inlet pipe (10), and the air outlet of the spiral coil (9) is provided with a drain pipe (12), one end of the drain pipe (12) is connected to the spiral coil (9), and the other end of the drain pipe (12) is connected to the water tank (3), A drain valve (13) is arranged on the drain pipe (12); a bottom pipe (14) is arranged inside the tank body (1); a baffle (15) is fixed to one end of the bottom pipe (14) located inside the tank body (1); a plurality of wax outlets (16) are arranged equidistantly in a circular arrangement at one end of the bottom pipe (14) located inside the tank body (1); wax liquid in the bottom pipe (14) can be discharged into the tank body (1) through the wax outlets (16); a liquid outlet pipe (18) is arranged on one side of the tank body (1); the liquid outlet pipe (18) is connected to the tank body (1); a float liquid level gauge (21) is fixed to the top of the tank body (1); and a liquid level gauge (21) is arranged on the top of the bottom pipe (14). A wax inlet (23), the wax inlet (23) is connected to a sinking pipe (14), a wax inlet valve (24) is arranged on the wax inlet (23), a steam amplifier (25) is fixed on the top of the sinking pipe (14), the steam amplifier (25) is connected to the sinking pipe (14), a pressure differential balance pipe (26) is fixed on the top end surface of the sinking pipe (14), one end of the pressure differential balance pipe (26) is connected to the sinking pipe (14), the other end of the pressure differential balance pipe (26) passes through the steam amplifier (25) and is connected to the tank body (1), and a baffle (27) is arranged on the port of the steam amplifier (25).

2. The slightly negative pressure steam heating wax transfer barrel according to claim 1, characterized in that: The outer layer of the tank body (1) is wrapped with a thickened heat-insulating cotton layer (2).

3. The slightly negative pressure steam heating wax transfer barrel according to claim 1, characterized in that: A proximity switch (22) is provided on one side of the float liquid level gauge (21).

4. The slightly negative pressure steam heating wax transfer barrel according to claim 1, characterized in that: A wax temperature probe (17) is provided on one side of the tank body (1).

5. The slightly negative pressure steam heating wax transfer barrel according to claim 1, characterized in that: The liquid outlet pipe (18) is provided with a pump inlet valve (19), and the liquid outlet pipe (18) is provided with an electric gear pump (20).

Images