How to deal with the waste gas generated by the desert sand for casting, especially the peculiar sme

What we have done is to do the treatment project of waste gas generated by coated sand by heating the phenolic resin, first of all, at the heating phenolic resin and quenching place, use the smoke stove to suck the air to collect the smoke and dust waste gas - pipe connection - water spray dilution cooling - purifier - fan - discharge. If the environmental protection is not strict, the requirements are not high, and the purifier part is adsorbed with activated carbon. The treatment is relatively good, cost-effective, and the long-term operation is still to use photolysis catalytic equipment to purify the exhaust gas.

The initial investment will be higher than that of activated carbon, and what we have done is photolysis, catalytic deodorization + plasma fume purifier, and the cost of the whole project is between 20 and 30, which is too high or too low, which is abnormal. Hope it helps.

What we have done is to do the treatment project of waste gas generated by coated sand by heating the phenolic resin, first of all, at the heating phenolic resin and quenching place, use the smoke stove to suck the air to collect the smoke and dust waste gas - pipe connection - water spray dilution cooling - purifier - fan - discharge.

If the environmental protection is not strict, the requirements are not high, and the purifier part is adsorbed with activated carbon. The treatment is relatively good, cost-effective, and the long-term operation is still to use photolysis catalytic equipment to purify the exhaust gas. The upfront investment will be higher than that of activated carbon.

What we have done is an all-in-one machine for photolysis catalytic deodorization + plasma fume purifier.

It is not normal for the cost of the whole project to be too high or too low in 20 to 30 rooms. Hope it helps.

Choose activated carbon--- Wanjing brand activated carbon.

The main resins are heated to form gases and respiratory system benefits, and the process department foundries are used to wear masks, and the impact is weakened.

It doesn't feel like a pointless question.

It can be sold to builders or donated to primary schools in mountainous areas.

It can be used for road padding, pit filling, and construction.

This part is a special-shaped part, and the part where the porosity appears is something similar to a three-dimensional triangle. The thickest part of the bottom surface is 23mm. It is about 45mm high.

The two sides are large arc-shaped, and the parting surface is on the height. The pores appear on the edges of the two arcs. Measures used to resolve this issue. 1

Coated sand is mainly used in hot core boxes, through the core shooting machine, the sand is blown into the hot core box with compressed air to make cores. Resin sand is sand added to resin and stirred evenly, hand-made core, also called cold resin sand. Your home's products are suitable for laminated sand casting.

The main thing is to find a way to prevent sand sticking, once formed, it is very troublesome to deal with, with high consumption and low efficiency. The treatment methods are generally electric welding spurs, gas cutting and blowing, grinding wheel grinding, wind, and electric shovel.

Aftermath:

1. Shot peening and shot blasting.

2. Grinding wheel grinding.

3. Wind and electric shovels.

Pre-control: 1. Coating.

2. Improve the compactness of type and core.

3. Choose raw sand with high refractoriness.

4. Control the pouring temperature.

5. Change the structure of local products.

Choose good silica sand and choose good coatings.

The external sand is easy to clean.

Many manufacturers are troubled by the sand inside.

In fact, the sticky sand of many sandblasting parts can be knocked off with a sandblasting machine (the principle is that the sandblasting machine sprays sand from the gun head, hits the surface of your sticky sand, and knocks him off).

Many of the foundries who come to us to buy sandblasting machines are foundries, and it is recommended to use high-pressure sandblasting machines (strong impact and high efficiency).

Green film sand (raw sand, sodium-based clay, pulverized coal, water) old sand can be directly reused, without adding the above 4 components when reusing, and the required moisture compaction rate and other indicators can be achieved. One way to reuse coated sand for core making is to first sieve, magnetic separation, combustion, dust removal, and cooling to become reused sand equivalent to raw sand, and then use this sand to match coated sand or other types of sand, that is, raw sand.

What you are talking about is that "poured sand casting" is a casting method, and "poured sand" is a common name. Mainly the manufacture of cast iron. The subdivision can be divided into: ductile iron, gray iron casting, etc.

The "sand pouring casting treatment" you asked about I don't know what kind of casting process you are asking, product production is nothing more than those steps: casting treatment is also roughly divided into: pre-casting treatment, molding treatment, post-processing, etc.

Because I'm working in the foundry industry right now, you ask specific questions, maybe we can talk about it together.