主井底煤仓清仓安全技术措施

       1、工作前先将煤仓放空,并将煤仓口附近的杂物、积渣和顶板上的浮石清理干净,煤仓口5米以内以及煤仓给煤机周围3米内派专人放好警戒。

2、工作前首先由安检员对煤仓内进行瓦斯浓度及其它有害气体进行检查,当瓦斯浓度不超过1%时,二氧化碳浓度不超过1.5%时,其他有毒有害气体不超标时,方可进行作业。

3、清仓人员必须要系好安全带,系好保险绳,好将所携带的工具用棕绳系好,并须逐步递进,从上而下全方位(斜井上下左右全部)进行清理,只有将上段清理干净后方可进行下一步清理。

4、工作人员必须穿好防护用品,带好安全帽,并携带好矿灯和自救器及便携式瓦斯检测仪,随时检查瓦斯情况,发现异常,立即停止工作。

5、施工人员下井前严禁喝酒,严禁带情绪下井。

6、派专人传递信号,必须做到信号清晰。

7、清仓完毕后,必须将煤仓底部给煤机上杂物清理干净。

8、现场安排专人落实本措施的实施。

9、施工前后及时与调度室联系。

10、不详之处严格按照《规程》及审批意见实施。

We can supply big range of such stainless steel Casting Parts, including investment casting and Sand Casting

Sand Casting method (Sand Casting)

Using Sand as Mold material, according to the different components of Sand can be subdivided into wet Sand casting method of Green Sand Mold), surface Dry Sand casting method (Dry Sand Mold), and so on, but not all are available in the casting.

Advantage is lower cost, because the sand mold use reusable;

Lost wax Casting, Investment Casting

This method can be as the outer membrane casting method and the solid casting method.

To copy wax casting items required first, and then into the pool with ceramic and stay dry, make with wax replica is covered a layer of ceramic outer membrane, repeat steps until enough to support outer membrane casting process (about 1/4 inch to 1/8 inch), then the wax melting mould, and out of mold. Then mold need to high temperature for many times, enhance behind the hardness could be used in the casting.

This method has good accuracy, can be used as a high melting point metal, such as titanium casting.

B. Main particulars

MAIN PARTICULARS

Material for product

stainless steel(303, 304,316-)

Standard

ASTM, ASME, DIN, JIS, ISO, BS, API, EN

Certificate

ISO9001

Dimension

As per drawing, as large as we can

Processing

Step1:investment casting or sand casting

Step2:turning, milling, drilling, grinding, threading, CNC Machining, boring

Finishing surface

Machined surface with oil, blasting and painting, anodize, polishing, powder painting, electrophoretic coating-

Marking

as per clients` requirements

Inspection

material, construction, dimension, heat treatment, hardness, NDT

Quality

ISO9001, PPAP control production

Lead time

20-30 days for sample, consult with customer for mass production

Delivery

Express for sample, ocean shipping/air for mass production

Our Capabilities

CNC machining, CNC center machining, drilling, milling, turning, grinding, tapping, boring

Engineering & manufacturing services

R&D process, tooling and gauging design, product design

Integrated CAD/CAM system, test and measuring

Others

Recyclable, in line with environmental requirements and standards, and reliable


C. Construction

Construction by casting and machining


D Workmanship

The workmanship have good production practice. Care are taken to ensure High accuracy and smooth surfaces 

E. Certificates

- Material certificates

- Measuring reports

- Inspection protocol

- NDT reports

- Fixed certificate: ISO9001 certificate



Our service

Besides above the general specifications, we can also supply some specific machining parts as clients' requirements.


Package and shipping

Export cartons, pallets, wooden cases, Polybags

container package and container transportation

Stainless Steel Casting Parts

Stainless Steel Casting Parts,Oem Stainless Steel Casting Parts,Stainless Steel Sand Casting Parts,Stainless Steel Sand Casting Components

Shinvast Industry Ltd , http://www.shinvastindustry.com

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