How does the stone production line block dust pollution

Because of stone crusher is not fully closed, at work, being hit by extrusion, stone, stone clearance of air is extruded and high-speed outward movement, lead dust with escape, instantly raise large amounts of dust. The dusty air passes down through the chute (a few) or through the feeding mouth (most), causing a high concentration of dust around the feeding mouth. Being in this state for a long time will not only cause serious pollution to the environment, but also cause great harm to the human body. So how to control the dust pollution of the crusher, as a professional broken equipment manufacturer, which aspects should we improve?vacuum furnace

(1) close control will seal the dust source with a sealed cover to make the dust not spread widely.vacuum furnaces

(2) eliminate highly potential difference handling equipment hopper, shield, chute, etc for powder, high potential difference generated by the difference of the main causes of spillover is the dust float in the sky, try to reduce the gap, reduce the chute chute inclination, some secret chamber caused by negative pressure best closed, such ability for dust collection.

(3) the wet dust removal and exhaust dust removal according to the reasons of the dust, dust source can be set respectively control countermeasures: in the feeding mouth and tape transshipment point setting spray device, and to control the amount of water wet stone, can significantly reduce the crushing plant transfer point inside the dust pollution; When the reprint point, especially when the underground construction of the underground building is bad, the centrifugal fan should be used, the ventilation should be forced and the wind speed and air volume should be enhanced. When the dust is produced by the operation of the tape, the negative pressure control system of the cloth bag filter is adopted to control the dust source.
vacuum tempering furnace vacuum oven

The advantages of vacuum furnace performance are significant

     The advantages of vacuum furnace performance are significant

The vacuum furnace, as the name implies, is in a vacuum in the furnace, so it avoids many other types of coal burners.
Eliminating the oxidation and decarburization of the surface of the workpiece during the heating process, the cleaning surface of the non-metamorphic layer can be obtained. That only when grinding mill side of cutting tools (such as twist drill grinding after make direct exposure to edge) of the decarburization layer of the grooved surface cutting performance greatly improved relations.
No pollution of the environment, no three waste disposal.
The measurement of furnace temperature and the accuracy of monitoring are obviously improved. Indicated value of thermocouple temperature and furnace temperature reached plus or minus 1.5 ° c. But in different parts of a large number of artifacts in the furnace temperature difference is bigger, if USES the rarefied gas forced circulation, can still be controlled within + / - 5 ° c temperature difference.
High degree of electromechanical integration. On the basis of improving temperature measurement and control accuracy, the workpiece movement, air pressure adjustment, power adjustment, etc., can be programmed in advance, and the hardening and tempering are done by step.
The energy consumption is significantly lower than the salt bath furnace. Modern advanced vacuum furnace heating chamber is made of high quality insulation material of insulation walls and barriers, electric energy can be highly focused on indoor heating, energy saving effect is remarkable.

Concrete analysis of the effect of heat treatment

Concrete analysis of the effect of heat treatment

Alleged metal heat treatment, it is with the aid of certain thermal effect (sometimes by mechanical action, chemistry or other principals) to the change of the human internal organization and structure, metal alloy to obtain the required performance of process operations. In all kinds of metal materials and products of the production process, heat treatment is one of the indispensable important segment.
Casting is usually needed to eliminate internal stress of low temperature annealing, or completely annealing or normalizing; Some still need after quenching tempering (aging). Heat treatment of steel in the whole production process, including heat treatment of steel ingot, pressure processing and finished products in the process of heat treatment. Heat treatment of steel ingot is mainly of annealing at different temperatures. Heat treatment of steel can be used in accordance with the process performance and performance requirements. Such as all kinds of steel should be normalized processing, often in order to obtain fine and uniform microstructure and good mechanical properties. High strength quenched and tempered steel shell}! High temperature quenching tempering treatment, often to ensure that meet the requirements of the comprehensive mechanical properties. Stainless steel plate and steel belt, most solid solution treatment to improve its corrosion resistance. Hot forging (rolling) steel according to the requirements of the user to determine the heat treatment process of the products. Cold drawing (rolling) steel billet heat treatment, heat treatment and finished goods between heat treated.
Non-ferrous metal and its alloy semi-finished products or products of the production with steel and steel parts production phase 'roughly, but in the non-ferrous metal processing technology in the process, heat treatment is an important part of the more. No congratulations on heat treatment. Plate and strip production would not be performed.

Vacuum furnace characteristics

Vacuum furnace characteristics

Two professional vacuum heat treatment of vacuum technology and heat treatment technology that combines an integrated, refers to the whole and part of heat treatment process in a vacuum. Our country could be divided into low, medium and high vacuum and high vacuum. At present most of the vacuum heat treatment furnace work vacuum degree in 1.33 ~ 1.33 x 10 ˉ sup3; Pa.
Industrial vacuum hot water boiler from Zurich polytechnic university in 1972 invented the basic principles of vacuum boiler. Founded in 1974 by the Japanese tanokuma polytechnic institute is developed on the basis of principle of the vacuum hot water boiler, and won the invention patent, in 1982, South Korea Fuji corporation will vacuum hot water boiler, boiler to market, become the brand of the first commercial use vacuum boiler:
Next, with the technology quickly popular in European and American countries, become a landmark greenhouse culture of new products.
The late 1980 s, Fuji, formal mass production vacuum hot water boiler, boiler, products not only domestic gained popularity in Korea, but also sells in distant markets, including Russia, China, southeast Asia, the americas, Europe and other more than 40 countries and regions.

With characteristics of vacuum furnace

With characteristics of vacuum furnace

Vacuum furnace is dry and sensitive, easy oxidation, or easy to break down material for design. You can use the internal part filled with inert gases, for some objects with complex components quick drying is particularly convenient.
Rectangular studio maximum effective volume. Microcomputer temperature controller can control temperature accurately. In the viewing room steel bulletproof double glass door to make indoor objects at a glance.
Case of open or close, can adjust elasticity. The overall shape of the silicone rubber door seal ensures a high vacuum chamber. Chamber using stainless steel (or wire-drawing sheet), to ensure the durability of the product.
Storage, heating, test, and dry with oxygen or inert gas under the environment of so they will not be oxidation. The shortest heating time, compared with the traditional vacuum drying oven, the heating time is reduced by 50% or more.

The primary principle of vacuum brazing furnace

The primary principle of vacuum brazing furnace

Vacuum brazing furnace is in a vacuum environment to maintenance of sintering furnace heated objects, the heating method is more, such as resistance heating, induction heating, microwave heating, etc. Vacuum induction furnace is the use of induction heating to maintenance of sintering furnace heated objects can be divided into the power frequency, medium frequency, high-frequency, such as type, can be attributable to a subclass of vacuum brazing furnace. Vacuum induction furnace Vacuum induction furnace is in a vacuum or maintain atmosphere conditions, using the principle of intermediate frequency induction heating make carbide cutter head, and all kinds of metal powder limit sintered body implementation of complete sets of equipment, is for hard alloy, metal dysprosium, and planning in the industrial production of ceramic materials.
A hydrogen sintering furnace, vacuum induction tungsten first principle and use vacuum induction furnace tungsten is after vacuum filling hydrogen maintenance conditions, using the principle of intermediate frequency induction heating, the high temperature of tungsten crucible in the winding, after thermal conduction to the work, suitable for scientific research, military units for hard metal such as tungsten, molybdenum and its alloy powder sintering molding. Second, primary layout and layout method for vertical, the discharging method. Its primary group became: electric furnace body, vacuum system, water cooling system, pneumatic system, hydraulic system and front-rear institutions, base, workbench, induction heating equipment (tungsten heater and high-grade thermal insulation material), into the electric equipment, intermediate frequency power supply and electrical control system, etc. Third, primary function After vacuum filling the hydrogen gas maintenance and control atmosphere in furnace pressure and sintering conditions. Available optical fiber infrared radiation thermometer and the armoured thermocouple temperature measurement (0 ~ 2500 ℃), and after comparing the intelligent temperature control and setting process, select performance status feedback to medium frequency power supply, automatic control temperature of concave and convex and heat preservation program

Heat Treatment of Temper-able Aluminum alloys

  Heat Treatment of Temper-able Aluminum alloys

Aluminum with its alloys is becoming more and more important in the development of lightweight materials for use in the automotive industry. To meet the strength standards required for this purpose, heat treatment of the materials is often necessary.
Sophisticated process engineering provides for increased strength
For the heat treatment of temperable aluminum alloys Shanghai Gehang provides solutions for the process steps annealing, quenching and aging adapted to the specific requirements.heat traetment vacuum furnace.
Annealing is performed at approx. 535 °C for a period of several hours. Mixed aluminum crystals are formed, in which the alloying constituents such as silicon and magnesium are completely dissolved.
Quenching serves for "freezing" this condition. This prevents the precipitation of the alloying constituents dissolved in the mixed crystal.
The subsequent aging is performed at 140 °C to 200 °C for several hours. In this process, the required strength is achieved due to segregation processes in the crystal.
Rendering processes stable and reproducible
The conceptual and construction design of Shanghai Gehang heat treatment plants is performed with the clear objective of accomplishing stable and reproducible processes. The design of the circulating air flow, the definition of the heating zone length (gas-heated or electrically heated), the conveyor concept as well as the design of the quench will be optimized and adapted to the requirements of the actual products before accomplishing this objective. This ensures an equal starting basis for all the products being manufactured with the objective of leaving the production plant as a "first class" end product.
SIMUWU engineer has both in-depth process knowledge and extensive project experience. As a leading manufacturer of heat-treatment plants, with over 60 customer references, Shanghai Gehang is the partner of choice for manufacturers of aluminum structural components for cars and cylinder heads, engine blocks, transmission parts, other aluminum parts, and wheels.