CN216245523U

CN216245523U - Inner circulation cooling system of de-waxing furnace

Info

Publication number: CN216245523U
Application number: CN202122482863.5U
Authority: CN
Inventors: 方超群; 郭伟波; 王占坡; 陈加锭; 蔡晶锋; 徐金鹏
Original assignee: Zhejiang Hengcheng Cemented Carbide Co Ltd
Current assignee: Zhejiang Hengcheng Cemented Carbide Co Ltd
Priority date: 2021-10-15
Filing date: 2021-10-15
Publication date: 2022-04-08
Anticipated expiration: 2031-10-15

Abstract

The utility model relates to a circulating cooling system in a de-waxing furnace, belonging to the technical field of de-waxing furnace cooling, comprising a de-waxing furnace and an argon cooling assembly, wherein the air inlet end and the air outlet end of the argon cooling assembly are respectively communicated with the inner cavity of the de-waxing furnace, and the argon cooling assembly comprises a cold drying machine communicated with the inner cavity of the de-waxing furnace and a gas circulating pump used for enabling argon in the de-waxing furnace to circularly flow between the de-waxing furnace and the cold drying machine. The utility model has the advantages of quickly reducing the temperature of the inner cavity of the de-waxing furnace, having high cooling efficiency and quickly reducing the temperature of products in the de-waxing furnace.

Description

Inner circulation cooling system of de-waxing furnace

Technical Field

The utility model relates to a circulating cooling system in a de-waxing furnace, belonging to the technical field of de-waxing furnace cooling.

Background

In the process of manufacturing the ceramic piece, wax removal is carried out through a wax removal furnace, and all or most of organic impurities in the blank body are removed before firing. And the temperature of the inner cavity of the de-waxing furnace is higher, if a quick cooling system is not configured, a long time is needed from high temperature to room temperature, and in order to improve the production efficiency of the de-waxing furnace, the quick cooling system is adopted to ensure that the cooling time is greatly shortened. The prior Chinese patent No. 202020708746.9, named as an argon circulating cooling system for a vacuum furnace, has the advantages that on the basis of the conventional vacuum annealing furnace, the water jacket of the interlayer of the shell is removed, and the loss of energy consumption in the annealing process is reduced; meanwhile, after the high-temperature annealing is finished, in order to enable the materials or the workpieces in the furnace body to be rapidly cooled to a proper temperature and discharged, an argon circulating cooling system is arranged on the vacuum annealing furnace. It also has the following disadvantages: the high-temperature argon in the furnace can be discharged and cooled to reduce the temperature in the furnace only by filling quantitative argon into the furnace, and the high-temperature argon in the furnace is discharged slowly by the way, so that the cooling efficiency is low, the rapid cooling in the furnace is difficult to realize, and the like.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a circulating cooling system in a de-waxing furnace, which solves the problems that in the prior art, high-temperature argon in the furnace can be discharged and cooled to reduce the temperature in the furnace only by firstly filling quantitative argon into the furnace, and the high-temperature argon in the furnace is discharged at a low speed by the mode, so that the cooling efficiency is low, the rapid cooling in the furnace is difficult to realize, and the like.

The technical purpose of the utility model is mainly solved by the following technical scheme: the utility model provides a circulative cooling system in dewaxing furnace, includes dewaxing furnace and argon gas cooling module, the inlet end of argon gas cooling module with give vent to anger the end respectively with the inner chamber intercommunication of dewaxing furnace, argon gas cooling module include with the cold machine of doing of dewaxing furnace inner chamber intercommunication with be used for making argon gas in the dewaxing furnace be in the dewaxing furnace with the gas circulation pump that circulates between the cold machine.

When the device is used, the gas circulating pump is controlled to work, so that high-temperature argon in the de-waxing furnace enters the cold dryer to be cooled, the argon cooled by the cold dryer returns to the de-waxing furnace again under the action of the gas circulating pump, and the heat in the de-waxing furnace is gradually taken away under the action of the argon along with the circulating flow of the argon between the de-waxing furnace and the cold dryer, so that the temperature of the inner cavity of the de-waxing furnace can be quickly reduced by continuously circulating, the cooling efficiency is high, and the temperature of products in the de-waxing furnace can be quickly reduced.

Preferably, an argon pressure supplementing assembly is arranged on the dewaxing furnace, the argon pressure supplementing assembly comprises a pressure supplementing pipe communicated with the inner cavity of the dewaxing furnace, and the other end of the pressure supplementing pipe is communicated with an argon source; through being equipped with the argon gas pressure supplementing subassembly on the wax removal stove, the argon gas pressure supplementing subassembly includes the pressure supplementing pipe that communicates with the wax removal stove inner chamber, and the pressure supplementing pipe other end communicates with the argon gas source for can supply argon gas to the wax removal stove inner chamber through the pressure supplementing pipe in the cooling process, so that the state of malleation is kept throughout to the wax removal stove inner chamber, causes the influence to the product in preventing outside air entering wax removal stove.

Preferably, the pressure compensating pipe is sequentially provided with a one-way valve and a pressure regulating valve along the air inlet direction; through be equipped with check valve and air-vent valve in proper order along its direction of admitting air on the pressure-compensating pipe, the argon gas backward flow of wax removal stove inner chamber when can preventing to supply argon gas to wax removal stove inner chamber to can adjust the flow of argon gas during the pressure-compensating, reduce the pressure of argon gas.

Preferably, the argon cooling assembly further comprises a first pipeline communicated with an air inlet of the cold dryer, and the other end of the first pipeline is communicated with an inner cavity of the de-waxing furnace; through still being equipped with the first pipeline with the air inlet intercommunication of cold machine of doing in the argon gas cooling subassembly, the other end of first pipeline and the inner chamber intercommunication of wax removal stove to make the high temperature argon gas of wax removal stove inner chamber can get into through first pipeline and cool off in the cold machine of doing.

Preferably, the argon cooling assembly further comprises a second pipeline communicated with the air outlet of the cold dryer, the other end of the second pipeline is communicated with the air inlet of the gas circulating pump, and the air outlet of the gas circulating pump is communicated with the inner cavity of the de-waxing furnace through a third pipeline; a second pipeline communicated with the air outlet of the cold dryer is further arranged in the argon cooling assembly, the other end of the second pipeline is communicated with the air inlet of a gas circulating pump, the air outlet of the gas circulating pump is communicated with the inner cavity of the wax removal furnace through a third pipeline, so that the argon cooled by the cold dryer can sequentially pass through the second pipeline and the third pipeline under the action of the gas circulating pump and then returns to the wax removal furnace, and the circulating flow of the argon between the wax removal furnace and the cold dryer is realized,

preferably, a switch valve is respectively arranged at the position of the air inlet of the first pipeline and the position of the air outlet of the third pipeline; be equipped with the ooff valve respectively through the inlet end position at first pipeline and the outlet end position of third pipeline for can cut off the pipeline return circuit between wax removal stove and the argon gas cooling module through the ooff valve when letting in hydrogen to the wax removal stove, thereby prevent that hydrogen in the wax removal stove from getting into in the argon gas cooling module.

Preferably, a flow valve is arranged on the first pipeline, and the switch valve and the flow valve are sequentially arranged along the air inlet direction of the first pipeline; through being equipped with the flow valve on first pipeline, ooff valve and flow valve set gradually along the direction of admitting air of first pipeline to the high temperature argon gas that adjusts the wax removal stove inner chamber through the flow valve gets into the velocity of flow in the argon gas cooling subassembly, thereby can reach the mesh of adjusting cooling rate.

Therefore, the utility model has the advantages of quickly reducing the temperature of the inner cavity of the de-waxing furnace, having high cooling efficiency and quickly reducing the temperature of products in the de-waxing furnace.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic perspective view of an argon pressure compensating assembly according to the present invention.

The scores in the figures are as follows: 1. a de-waxing furnace; 2. an argon cooling assembly; 3. a cold dryer; 4. a gas circulation pump; 5. a first conduit; 6. a second conduit; 7. a third pipeline; 8. an on-off valve; 9. a flow valve; 10. argon gas pressure supplementing assembly; 11. a pressure compensating pipe; 12. a one-way valve; 13. a pressure regulating valve.

Detailed Description

The technical scheme of the utility model is further specifically described by the following embodiments and the accompanying drawings.

As shown in figure 1, the internal circulation cooling system of the de-waxing furnace comprises a de-waxing furnace 1 and an argon cooling assembly 2, wherein a gas inlet end and a gas outlet end of the argon cooling assembly 2 are respectively communicated with an inner cavity of the de-waxing furnace 1, the argon cooling assembly 2 comprises a cold dryer 3 communicated with the inner cavity of the de-waxing furnace 1 and a gas circulating pump 4 used for enabling argon in the de-waxing furnace 1 to circularly flow between the de-waxing furnace 1 and the cold dryer 3, the argon cooling assembly 2 further comprises a first pipeline 5 communicated with a gas inlet of the cold dryer 3, the other end of the first pipeline 5 is communicated with the inner cavity of the de-waxing furnace 1, the argon cooling assembly 2 further comprises a second pipeline 6 communicated with a gas outlet of the cold dryer 3, the other end of the second pipeline 6 is communicated with a gas inlet of the gas circulating pump 4, a gas outlet of the gas circulating pump 4 is communicated with the inner cavity of the de-waxing furnace 1 through a third pipeline 7, and the first pipeline 5, a gas outlet of the argon cooling assembly 2 is communicated with the inner cavity of the de-waxing furnace 1 through a third pipeline 7, Second pipeline 6 and third pipeline 7 are the high temperature hose, and the position of the inlet end of first pipeline 5 and the position of the outlet end of third pipeline 7 are equipped with ooff valve 8 respectively, and ooff valve 8 is the high temperature valve, is equipped with flow valve 9 on the first pipeline 5, and ooff valve 8 and flow valve 9 set gradually along the direction of the inlet air of first pipeline 5.

As shown in fig. 2, an argon pressure supplementing assembly 10 is arranged on the dewaxing furnace 1, the argon pressure supplementing assembly 10 comprises a pressure supplementing pipe 11 communicated with the inner cavity of the dewaxing furnace 1, the other end of the pressure supplementing pipe 11 is communicated with an argon gas source, a check valve 12 and a pressure regulating valve 13 are sequentially arranged on the pressure supplementing pipe 11 along the air inlet direction, and the pressure regulating valve 13 is a precise pressure regulating valve.

During this embodiment concrete implementation, control gas circulation pump 4 work, make high temperature argon gas in the wax removal stove 1 get into the cool dry machine 3 through first pipeline 5 and cool off in, then the argon gas after the cool dry machine 3 cooling loops through in second pipeline 6 and third pipeline 7 get back to the wax removal stove 1 under gas circulation pump 4's effect, along with the circulation flow of argon gas between wax removal stove 1 and cool dry machine 3, make the heat in the wax removal stove 1 taken away gradually under the effect of argon gas, it just can make the temperature of the 1 inner chamber of wax removal stove reduce fast to circulate constantly like this.

The utility model has the advantages of quickly reducing the temperature of the inner cavity of the de-waxing furnace, having high cooling efficiency and quickly reducing the temperature of products in the de-waxing furnace.

Claims

1. The utility model provides a circulation cooling system in de-waxing stove which characterized in that: including dewaxing furnace (1) and argon gas cooling module (2), the inlet end of argon gas cooling module (2) with give vent to anger the end respectively with the inner chamber intercommunication of dewaxing furnace (1), argon gas cooling module (2) include with cold dry machine (3) of dewaxing furnace (1) inner chamber intercommunication and be used for making argon gas in dewaxing furnace (1) is in dewaxing furnace (1) with gas circulation pump (4) of circulation flow between cold dry machine (3).

2. The internal circulation cooling system of the de-waxing furnace according to claim 1, characterized in that: be equipped with argon gas pressure supplementing subassembly (10) on wax removal stove (1), argon gas pressure supplementing subassembly (10) include with pressure supplementing pipe (11) of wax removal stove (1) inner chamber intercommunication, the pressure supplementing pipe (11) other end and argon gas source intercommunication.

3. The internal circulation cooling system of the de-waxing furnace according to claim 2, characterized in that: the pressure compensating pipe (11) is sequentially provided with a one-way valve (12) and a pressure regulating valve (13) along the air inlet direction.

4. The system for cooling circulation in a de-waxing furnace according to claim 1, 2 or 3, wherein: the argon cooling assembly (2) further comprises a first pipeline (5) communicated with the air inlet of the cold dryer (3), and the other end of the first pipeline (5) is communicated with the inner cavity of the de-waxing furnace (1).

5. The system of claim 4, wherein: argon gas cooling module (2) still include with second pipeline (6) of cold machine (3) gas outlet intercommunication of doing, the other end of second pipeline (6) with the air inlet intercommunication of gas circulating pump (4), the gas outlet of gas circulating pump (4) with through third pipeline (7) intercommunication between the inner chamber of wax removal stove (1).

6. The system of claim 5, wherein: and switch valves (8) are respectively arranged at the air inlet end position of the first pipeline (5) and the air outlet end position of the third pipeline (7).

7. The system of claim 6, wherein: be equipped with flow valve (9) on first pipeline (5), ooff valve (8) with flow valve (9) are followed the direction of admitting air of first pipeline (5) sets gradually.