阅读说明：本技术 一种应用于精密铸造的蜡回收处理系统及方法 (Wax recovery processing system and method applied to precision casting ) 是由 朱卫国 于 2020-06-28 设计创作，主要内容包括：本发明提出一种应用于精密铸造的蜡回收处理系统及方法,该系统包括脱蜡釜、蜡水分离装置、除水静置装置、蒸汽发生装置和气动抽蜡缸；该方法包括用于对模壳进行脱蜡操作的脱蜡步骤；用于对脱蜡釜产生的蜡水进行沉淀分离的蜡水分离步骤；以及用于对蜡液进行除水、静置的除水静置步骤；在蜡水分离步骤中,先对脱蜡釜产生的蜡水进行一定时间的初步沉淀,使蜡水与沙粉分离,再对蜡水进行加热除水；在除水静置步骤中通除水桶或/和静置桶表侧缠绕铜管,将所述铜管连通蒸汽发生装置以获取循环蒸汽实现保温；可自动化实现脱蜡、蜡水分离、除水静置、出蜡等工序,极大地提高蜡回收处理效率,回收处理效果好,回收蜡质量好,保证二次加工的蜡模质量。(The invention provides a wax recovery processing system and method applied to precision casting, wherein the system comprises a dewaxing kettle, a wax-water separation device, a dewatering standing device, a steam generation device and a pneumatic wax pumping cylinder; the method includes a dewaxing step for performing a dewaxing operation on a mold shell; a wax-water separation step for performing precipitation separation on the wax water produced by the dewaxing kettle; and a dewatering and standing step for dewatering and standing the wax liquid; in the wax-water separation step, firstly, performing preliminary precipitation on wax water generated by a dewaxing kettle for a certain time to separate the wax water from sand powder, and then heating the wax water to remove water; in the dewatering and standing step, a dewatering bucket or/and a copper pipe is wound on the surface side of the standing bucket, and the copper pipe is communicated with a steam generating device to obtain circulating steam to realize heat preservation; the process steps of dewaxing, wax-water separation, dewatering standing, wax discharge and the like can be automatically realized, the wax recovery treatment efficiency is greatly improved, the recovery treatment effect is good, the recovered wax quality is good, and the wax mold quality of secondary processing is ensured.)

1. A wax recovery processing system for precision casting, comprising:

a dewaxing kettle for dewaxing the formwork;

a wax-water separating device used for carrying out precipitation separation on the wax water generated by the dewaxing kettle;

a dewatering and standing device for dewatering and standing the wax liquid;

a steam generating device for supplying steam; and

the pneumatic wax pumping cylinder is used for providing pressure for the wax conveying pipeline;

the wax conveying pipeline comprises a central wax conveying pipe, a steam pipe, heat insulation cotton and an aluminum skin, wherein the steam pipe is provided with a plurality of strips and arranged around the central wax conveying pipe and communicated with the steam generating device; the central wax conveying pipe and the steam pipe are surrounded by the heat insulation cotton, and the periphery of the heat insulation cotton is covered with the aluminum skin;

the dewatering and standing device comprises a plurality of groups of dewatering buckets and standing buckets which are arranged side by side, wherein copper pipes are wound on the surface sides of the dewatering buckets or/and the standing buckets, and the copper pipes are communicated with the steam generating device.

2. The wax recovery processing system for precision casting according to claim 1, wherein: the dewatering standing device comprises a support frame for supporting and fixing the dewatering bucket and the standing bucket, and a dewatering bucket feeding stair connected with a dewatering bucket feeding channel on the top surface of the support frame; the dewatering bucket is arranged along a single row of the dewatering bucket feeding channel, and the standing bucket is arranged below the corresponding dewatering bucket.

3. The wax recovery processing system for precision casting according to claim 1, wherein: the central wax conveying pipe is a galvanized pipe, and the steam pipe is arranged on the surface side of the central wax conveying pipe in a clinging manner.

4. The wax recycling system for precision casting according to claim 3, wherein: the central wax conveying pipe of the wax conveying pipeline between the dewaxing kettle and the wax-water separation device is a 1-inch galvanized pipe, and the central wax conveying pipe of the wax conveying pipeline between the wax-water separation device and the dewatering standing device is a 6-minute galvanized pipe.

5. The wax recovery processing system for precision casting according to claim 1, wherein: the pneumatic wax pumping cylinder comprises two wax pumping cylinders and annular pipelines respectively connected with the two wax pumping cylinders.

6. The wax recovery processing system for precision casting according to any one of claims 1 to 5, wherein: the wax-water separation device comprises a wax-water separation host and a precipitation tank, and the precipitation tank is arranged between the wax-water separation host and the dewaxing kettle.

7. The wax recovery processing system for precision casting according to any one of claims 1 to 5, wherein: the wax-water separation device is provided with a plurality of devices.

8. The wax recovery processing system for precision casting according to any one of claims 1 to 5, wherein: the wax supply station is used for conveying wax to an external system and comprises at least one steam generator and at least one pneumatic wax pumping cylinder.

9. The wax recovery processing system for precision casting according to claim 8, wherein: the discharging hole of the dewatering standing device is provided with a plurality of discharging holes.

10. A wax recovery processing method applied to precision casting is characterized by comprising the following steps:

a dewaxing step for dewaxing the formwork;

a wax-water separation step for performing precipitation separation on the wax water produced by the dewaxing kettle; and

a dewatering and standing step for dewatering and standing the wax liquid;

in the dewaxing step, steam pressure of more than 7kg is needed to be realized in a dewaxing kettle to heat the mould shell, so that a wax mould in the mould shell is melted into wax water and separated from the mould shell, and then the wax water is discharged from a wax discharge port of the dewaxing kettle;

in the wax-water separation step, firstly, performing preliminary precipitation on wax water generated by a dewaxing kettle for a certain time to separate the wax water from sand powder, and then heating the wax water to remove water;

in the dewatering and standing step, copper pipes are wound on the surface sides of the dewatering bucket or/and the standing bucket, and the copper pipes are communicated with a steam generating device to obtain circulating steam to realize heat preservation;

in the wax liquid transmission of each step, a plurality of steam pipes are arranged on the periphery of a central wax transmission pipe, the central wax transmission pipe and the steam pipes are surrounded by heat insulation cotton, and the steam pipes are communicated with a steam generating device to obtain circulating steam to realize heat insulation.

Technical Field

The invention relates to a wax recovery processing system and method applied to precision casting.

Background

The casting wax is precision casting granulation, has the characteristics of small hardness, small linear shrinkage rate, good stability and the like, can be recycled after the wax mold is processed, and avoids resource waste, but the current recycling treatment device applied to the precision casting wax has poor treatment effect, neglects the heat preservation of wax liquid in the conveying process, and the recycled casting wax is difficult to be secondarily recycled or the processed wax mold has low quality, so that the expected effect cannot be achieved.

Disclosure of Invention

In order to overcome the problems in the prior art, the invention provides a wax recovery processing system and method applied to precision casting, which are realized by the following technical means:

the invention relates to a wax recovery processing system applied to precision casting, which comprises:

a dewaxing kettle for dewaxing the formwork;

a wax-water separating device used for carrying out precipitation separation on the wax water generated by the dewaxing kettle;

a dewatering and standing device for dewatering and standing the wax liquid;

a steam generating device for supplying steam; and

the pneumatic wax pumping cylinder is used for providing pressure for the wax conveying pipeline;

the wax conveying pipeline comprises a central wax conveying pipe, a steam pipe, heat insulation cotton and an aluminum skin, wherein the steam pipe is provided with a plurality of strips and arranged around the central wax conveying pipe and communicated with the steam generating device; the central wax conveying pipe and the steam pipe are surrounded by the heat insulation cotton, and the periphery of the heat insulation cotton is covered with the aluminum skin;

the dewatering and standing device comprises a plurality of groups of dewatering buckets and standing buckets which are arranged side by side, wherein copper pipes are wound on the surface sides of the dewatering buckets or/and the standing buckets, and the copper pipes are communicated with the steam generating device.

In one or more embodiments of the present invention, the dewatering static device comprises a support frame for supporting and fixing the dewatering bucket and the static bucket, and a dewatering bucket charging stair connected with a dewatering bucket charging channel towards the top surface of the support frame; the dewatering bucket is arranged along a single row of the dewatering bucket feeding channel, and the standing bucket is arranged below the corresponding dewatering bucket.

In one or more embodiments of the present invention, the central wax conveying pipe is a galvanized pipe, and the steam pipe is closely attached to the surface side of the central wax conveying pipe.

In one or more embodiments of the present invention, the central wax conveying pipe of the wax conveying pipeline between the dewaxing kettle and the wax-water separation device is a 1 inch galvanized pipe, and the central wax conveying pipe of the wax conveying pipeline between the wax-water separation device and the dewatering standing device is a 6-point galvanized pipe.

In one or more embodiments of the present invention, the pneumatic wax pumping cylinder includes two wax pumping cylinders and an annular pipe respectively connecting the two wax pumping cylinders.

In one or more embodiments of the present invention, the wax-water separation device includes a wax-water separation main unit and a precipitation tank, and the precipitation tank is disposed between the wax-water separation main unit and the dewaxing kettle.

In one or more embodiments of the present invention, the wax-water separation device includes a plurality of devices.

In one or more embodiments of the present invention, a wax supply station for supplying wax to an external system is disposed at a discharge port of the dewatering standing device, and the wax supply station includes at least one steam generator and at least one pneumatic wax pumping cylinder.

In one or more embodiments of the present invention, there are several discharge ports of the dewatering standing device.

The invention relates to a wax recovery processing method applied to precision casting, which comprises the following steps:

a dewaxing step for dewaxing the formwork;

a wax-water separation step for performing precipitation separation on the wax water produced by the dewaxing kettle; and

a dewatering and standing step for dewatering and standing the wax liquid;

in the dewaxing step, steam pressure of more than 7kg is needed to be realized in a dewaxing kettle to heat the mould shell, so that a wax mould in the mould shell is melted into wax water and separated from the mould shell, and then the wax water is discharged from a wax discharge port of the dewaxing kettle;

in the wax-water separation step, firstly, performing preliminary precipitation on wax water generated by a dewaxing kettle for a certain time to separate the wax water from sand powder, and then heating the wax water to remove water;

in the dewatering and standing step, copper pipes are wound on the surface sides of the dewatering bucket or/and the standing bucket, and the copper pipes are communicated with a steam generating device to obtain circulating steam to realize heat preservation;

in the wax liquid transmission of each step, a plurality of steam pipes are arranged on the periphery of a central wax transmission pipe, the central wax transmission pipe and the steam pipes are surrounded by heat insulation cotton, and the steam pipes are communicated with a steam generating device to obtain circulating steam to realize heat insulation.

The invention has the beneficial effects that: the control of the dewaxing kettle, the wax-water separation device, the dewatering standing device, the steam generation device and the pneumatic wax pumping cylinder is controlled by the industrial computer and power distribution, the processes of dewaxing, wax-water separation, dewatering standing, wax discharge and the like can be automatically realized, the wax recovery treatment efficiency is greatly improved, wax precipitation sand filtering powder, wax-water separation and wax liquid heat preservation in the wax conveying process are considered, the recovery treatment effect is good, the recovered wax quality is good, and the wax mold quality of secondary processing is ensured.

Drawings

FIG. 1 is a schematic view of a wax recovery processing system of the present invention.

Fig. 2 is a schematic cross-sectional structure diagram of the wax conveying pipeline of the invention.

Fig. 3 is a schematic structural diagram of the pneumatic wax pumping cylinder of the invention.

FIG. 4 is a flow diagram of the wax recovery process of the present invention.

Detailed Description

The scheme of the application is further described as follows:

referring to fig. 1 and 2, a wax recycling system for precision casting includes:

a dewaxing kettle 1 for dewaxing a formwork;

a wax-water separation device 2 for performing precipitation separation on the wax water generated by the dewaxing kettle 1;

a dewatering and standing device 3 for dewatering and standing the wax liquid;

a steam generating device 4 for supplying steam; and

the pneumatic wax pumping cylinder 6 is used for providing pressure for the wax conveying pipeline 5;

the wax conveying pipeline comprises a central wax conveying pipe 51, a steam pipe 52, heat insulation cotton 53 and an aluminum skin 54, wherein the steam pipe 52 is provided with a plurality of strips and surrounds the central wax conveying pipe 51, and is communicated with the steam generating device 4; the central wax conveying pipe 51 and the steam pipe 52 are surrounded by the heat insulation cotton 53, and the periphery of the heat insulation cotton 53 is covered with the aluminum skin 54; the central wax conveying pipe 51 is a galvanized pipe, the steam pipe 52 is closely attached to the surface side of the central wax conveying pipe 51, the central wax conveying pipe 51 of the wax conveying pipeline 5 between the dewaxing kettle 1 and the wax-water separation device 2 is a 1-inch galvanized pipe, and the central wax conveying pipe 51 of the wax conveying pipeline 5 between the wax-water separation device 2 and the dewatering standing device 3 is a 6-minute galvanized pipe.

The dewatering standing device 3 comprises a plurality of groups of dewatering barrels 31 and standing barrels 32 which are arranged side by side, copper pipes 7 are wound on the surface sides of the dewatering barrels 31 or/and the standing barrels 32, and the copper pipes 7 are communicated with the steam generating device 4. Specifically, the dewatering standing device 3 comprises a supporting frame 33 for supporting and fixing the dewatering bucket 31 and the standing bucket 32, and a dewatering bucket charging stair 35 connected with a dewatering bucket charging channel 34 towards the top surface of the supporting frame 33; the dewatering bucket 31 is arranged along a single row of the dewatering bucket feeding channel 34, and the standing bucket 32 is arranged below the corresponding dewatering bucket 31. The discharging port of the dewatering standing device 3 is provided with a wax supply station 8 for conveying wax to an external system, and the wax supply station 8 comprises at least one steam generator 4 and at least one pneumatic wax pumping cylinder 6.

The wax-water separation devices 2 are multiple and comprise a wax-water separation host 21 and a precipitation tank 22, and the precipitation tank 22 is arranged between the wax-water separation host 21 and the dewaxing kettle 1.

Referring to fig. 3, the pneumatic waxing cylinder 6 includes two waxing cylinders 61 and an annular pipe 62 respectively connecting the two waxing cylinders 61, and the double-cylinder design ensures stable and adjustable air supply pressure, and also avoids the whole system from being stopped due to the damage of a single cylinder.

Referring to fig. 4, a wax recycling method for precision casting includes the following steps:

a dewaxing step for dewaxing the formwork;

a wax-water separation step for performing precipitation separation on the wax water produced by the dewaxing kettle 1; and

a dewatering and standing step for dewatering and standing the wax liquid;

in the dewaxing step, steam pressure of more than 7kg needs to be realized in the dewaxing kettle 1 to heat the mould shell, so that a wax mould in the mould shell is melted into wax water and separated from the mould shell, and then the wax water is discharged from a wax discharge port of the dewaxing kettle 1;

in the wax-water separation step, firstly, the wax water generated by the dewaxing kettle 1 is subjected to preliminary precipitation for a certain time to separate the wax water from sand powder, and then the wax water is heated to remove water;

in the dewatering standing step, copper pipes are wound on the surface sides of the dewatering barrel 31 or/and the standing barrel 32 and communicated with the steam generating device 4 to obtain circulating steam to realize heat preservation;

in the wax liquid transmission of each step, a plurality of steam pipes 52 are arranged on the periphery of a central wax transmission pipe 51, the central wax transmission pipe 51 and the steam pipes 52 are surrounded by heat insulation cotton 53, and the steam pipes 52 are communicated with the steam generating device 4 to obtain circulating steam for heat insulation.

The above preferred embodiments should be considered as examples of the embodiments of the present application, and technical deductions, substitutions, improvements and the like similar to, similar to or based on the embodiments of the present application should be considered as the protection scope of the present patent.