钢丸填充壳型线（简称壳型线），适用于采用壳型工艺（即采用覆膜砂)生产砂型，并以铁丸或干砂为充填物用以支撑砂型来完成铸件的生产。主要用于生产高质量的铸件。采用壳型工艺生产的砂型具有强度高、 透气性好、溃散性好等优点，生产的铸件具有很高的几何精度和尺寸精度，可显著地减少铸件的铸造缺陷、提高铸件的内在质量、降低铸件的废品率。

壳型线的设备构成

壳型线主要由步进式浇注冷却线单元、落砂及丸砂分离单元、钢丸降温、除尘单元和壳型线控制系统等五部分组成。

（一）步进式浇注冷却线单元

主要由填铁丸机、振实台、壳型输送机和开式输送线等部分组成。

（二）落砂及丸砂分离单元

主要由翻箱机、振动落砂机、振动输送筛分机、斗式提升机、滚筒筛、直线振动细筛、 冷却滚筒、喷水系统、带式输送机、废砂储存斗和各种溜管等部分组成。

（三） 铁丸冷却储存单元

铁丸冷却储存单元主要由铁丸冷却装置、链式斗式提升机、冷却输送滚筒、喷水控制系统、铁丸储存冷却斗等部分组成。

（四）除尘单元

除尘单元主要由除尘系统和通风系统组成。除尘系统主要由除尘器、离心式风机、尘源点吸尘罩、除尘管道和风量调节闸门等部分组成。

(五)控制单元

控制单元主要由电源总开关，及PLC逻辑控制，及人工界面触摸屏，及各单机开关箱组成。

The steel shot-filled shell core making line (referred to as the shell line) is suitable for the production of sａnd by the shell type process (ie, using coated sand), and the iron type or dry sａnd is used as the filling material to support the sａnd type to complete the casting production. Mainly used to produce high quality castings. The sａnd type produced by the shell process has the advantages of high strength, good gas permeability and good collapsibility. The castings produced have high geometric precision and dimensional accuracy, which can significantly reduce casting defects of castings, improve the intrinsic quality of castings, and reduce The scrap rate of castings.

Shell line equipment

The shell line is mainly composed of a step-type casting cooling line unit, a falling sａnd and a sand-blast separation unit, a steel pellet cooling, a dust removal unit and a shell-type line control system.

(1) Step-type pouring cooling line unit

It is mainly composed of iron filling machine, vibrating table, shell conveyor and open conveying line.

(2) Falling sａnd and shot sａnd separation unit

Mainly by the box-turning machine, vibrating falling machine, vibrating conveying sieving machine, bucket hoist, drum screen, linear vibrating fine screen, cooling drum, water spray system, belt conveyor, waste sａnd storage bucket and various slide tubes Part of the composition.

(3) Iron pellet cooling storage unit

The iron pellet cooling storage unit is mainly composed of an iron pellet cooling device, a chain bucket elevator, a cooling conveyor roller, a water spray control system, an iron pellet storage cooling bucket and the like.

(4) Dust removal unit

The dust removal unit is mainly composed of a dust removal system and a ventilation system. The dust removal system mainly consists of a dust collector, a centrifugal fan, a dust source dust collecting hood, a dust removing pipe and a air volume adjusting gate.

(5) Control unit

The control unit is mainly composed of a power main switch, a PLC logic control, a manual interface touch screen, and a single switch box.