Exhibitor List
| Company | ANHUI JINLONG EVAPORATION ENERGY SAVING EQUIPMENT CO., LTD |
| Country | China |
| Products | Chemical-physical processes Emission Reduction |
| Hall | N1 |
| Booth | B90 |
| Website | www.ahjljx8.com |
| Introduction | Jinlong Evaporation is the leading brand in the field of evaporation and crystallization, using the world's most advanced technology in the field of evaporation and crystallization, has focused on all kinds of evaporation (MVR, multi-effect, etc.), concentration and crystallization (FC forced cycle, OSLO, DTB, etc.) equipments for more than 20 years. Provide evaporation, concentration and crystallization unit of the overall process plan design, complete equipment production, manufacturing, installation, commissioning, training turnkey project. |
Products
| Thermal steam recompression Evaporator TVR is a thermal vapor recompression technology (TVR). The TVR evaporator system has been improved compared to the directly exhausted secondary vapor system, which uses a jet heat pump to recover part of the secondary vapor. For jet heat pumps, only 0.3kg of 1kg high-pressure vapor can be injected, and another portion of fresh steam is needed for injection. According to the principle of heat pumps, vapor from the boiling chamber (vapor liquid separator) is pressurized to a higherpressure,atthistime,thecorresponding saturated vapor has a higher temperature compared to the steam in the evaporator, and the vapor can be reused. The requirement can be met by using a steam jet compressor (TVR). According to its characteristics of steam reusing, the energy saved by using a steam compressor (TVR) is equivalent to the energy saved by adding a one-effect evaporator. That is to say, it is equivalent to adding a one-effect evaporator. Therefore, it is currently widely used, however, the operation of steam compressors also requires a certain amount of fresh steam injection as power steam, which can save about 60% of energy during operation. |
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| Falling film evaporator The multi-effect falling film evaporator is a high-efficiency single cycle non-circulating film evaporation equipment, of which the film evaporation principle determines that it has the following characteristics: high heat transfer efficiency, small temperature difference loss, short heating time, less prone to deterioration, easy to operate with multiple effects, low energy consumption, small equipment size, etc. Multi-effect falling film evaporators are widely used in evaporation operations in chemical, pharmaceutical, light industry, food, petrochemical, metallurgical and other industries. The main technical indicators of the falling film evaporator produced by our company have reached the international advanced level. Our company currently produces a series of products with ten major types including single-effect,double-effect,three-effect,four-effect,and five-effect, with or without the use of heat pumps, including material of A (carbon steel), B (stainless steel for contactable materials), C (stainless steel for all structural components), and T (titanium), which are over 600 specifications. The company can undertake the task of transforming other forms of evaporators into falling-film evaporation operation types, and can equip ordinary evaporators with heating pump stored uce steam consumption, and can provide various auxiliary equipment to match with evaporators, all of which to meet the needs of users for evaporation of various materials.For a multi effect falling film evaporator, the liquid is added from the upper tube box of the heating chamber of the falling film evaporator, distributes evenly through the liquid distribution and film forming device, and flows down along the inner wall of the heat exchange tube in a uniform film type. During the downflow process, the liquid is heated and vaporized by the shell side heating medium, and the generated vapor and liquid phase enter the separation chamber of the evaporator together. After sufficient separation of the vapor and liquid, the vapor enters the condenser for condensation (single-effect operation) or enters the next-effect evaporator as the heating medium to achieve multi-effect operation, while the liquid phase is discharged from the separation chamber. The principle of heat pump evaporation is that the secondary steam generated in the evaporator is pumped and compressed by a steam jet pump, and mixed with the raw steam (Or a mechanical compressor to compress the secondary steam), thus, low-grade secondary steam can be turned into high-grade heating steam for reuse, which greatly reducing the consumption of raw steam.For example, the steam consumption of single-effect heat pump evaporation can reach a dual or even triple effect level. Heat pump evaporation is especially suitable for heat sensitive materials and materials with small boiling point rise and occasions where high-pressure steam can be provided. With a slight change, the jet heat pump can also be used as a device for changing superheated steam into saturated steam. |
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| Forced-circulation evaporator For a forced circulation evaporator, it relies on an external circulation pump to circulate the liquid, and there are two structures for the heating chamber:horizontal and vertical. The liquid circulation speed is adjusted by the pump.There are several types of forced circulation evaporators: single-effect, double-effect, three-effect, four-effect, and multi-effect forced circulation evaporators. The forced circulation evaporator vacuum concentration equipment is an efficient and energy-saving equipment developed and developed by our company, which operates under vacuum and low temperature conditions, and has the characteristics of fast flow rate of liquid material, fast evaporation and not easy to scale. According to the positions of the inlet and outlet of the circulating liquid in the separation chamber, the evaporator can be sorted into positive and a reverse forced circulation evaporator. For the inlet position of the circulating liquid at the upper part of the outlet, it is called a positive circulation, while for the reverse, it is called a reverse circulation. Reverse circulation forced evaporator has more advantages. It relies on an external forced circulation pump to circulate the liquid, and there are two structuresfortheheatingchamber:horizontaland vertical. The liquid circulation speed is adjusted by the pump.This evaporator is widely used for handling of solutions which is viscous, with precipitation crystallization, easy to scale, or highly concentrated solutions, especially when operating under vacuum conditions, its applicability is outstanding.The forced circulation evaporator produced by our company is widely used in the evaporation and crystallization operation of sodium chloride, ammonium sulfate, magnesium sulfate, zinc sulfate, sodium sulfate, Sodium sulfite, sodium gluconic, cobalt chloride, gulonic acid, alkali sulfide etc. |
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| Forced circulation crystallizer The forced circulation crystallizer, also known as the growth type crystallizer, has a conical bottom in the crystallization chamber. After discharged from the conical bottom, the crystal slurry is pumped to the heat exchanger through the circulation tube with an axial flow circulation pump, and then enters the crystallization chamber again after being heated or cooled. This cycle is endless and belongs to the crystal slurry circulation type, which can be operated continuously or intermittently.Vapor recompression (thermal TVR or mechanical MVR) can also be used. Forced circulation crystallizers can operate from low vacuum to atmospheric pressure. Usually, this kind of devices are used in situations where high evaporation rates and crystal size are not the most critical or where the requirements to the crystal growth rates are moderate. It is suitable for the production of sodium chloride, barium chloride, potassium chloride, urea, sodium hypophosphite, sodium sulfate, ammonium sulfate, citric acid and other inorganic and organic crystals, with product particle sizes ranging from 0.01 to 1mm. |
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| DTB tube crystallizer The DTB type crystallizer is suitable for mixed suspension products and is a turbulent crystallizer with flow tubes and baffles. It is a typical modern industrial continuous crystallizer with a wide range of applications. Whether for vacuum evaporation or vacuum flash cooling, it is an ideal continuous crystallizer. It consists of a heating chamber, an evaporation crystallization chamber, a circulating pump, a vertical axial flow pump, a crystallization zone, an evaporation zone, and a mother liquor zone.The crystal particles are larger than the FC type, with a particle size of 0.2-1.2mm. The particles are uniform with a smooth surface. Different products have different crystal characteristics, but the particle size can be adjusted within a certain range, which is a characteristic of the DTB type crystallizers.With a stable evaporation rate, this kind of design is suitable for situations where heating is not required or a small amount of heating is required.It can be designed with a compact structure and low cost. |
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| OSLO Crystallizer OSLO Crystallizer is a typical crystallizer used in the salt industry. As the external heater heats the circulating liquid into the vacuum flash chamber and evaporates to susaturation, the crystal can grow through the vertical pipe into the suspension bed. Its main feature is that the region of supersaturation and the crystal growth area are respectively set in two places of the crystallizer, and the crystal is fluidized and suspended in the circulating mother liquid flow, providing a good condition for crystal growth. Due to the special structure of OSLO crystallizer, the larger particles first contact supersaturated solution preferentially grow, followed by the smaller solution. The product has the advantages of large particle size, narrow particle size distribution, continuous operation and low labor intensity. OSLO cooling crystallizer is supersaturated by the liquid cooling of the saturated material by an external cooler, and the crystals can grow by entering the suspended bed through a vertical pipe. Due to the special structure of OSLO crystallizer, the larger particles first contact the supersaturated solution. Process: It adds a tube cooler on the circulating pipe road, the mother liquid passes through the pipe one way to the top, the concentrated material liquid is added before the circulating pump, and the circulating mother liquid is mixed together with the cooler to cool and produce susaturation, and then enters the crystallizer to flow suspension, producing a large and uniform crystal. The product (crystal) suspension is drawn from the base of the crystallizer cone. Because of the special structure of OSLO itself, the products produced have the advantages of large particles, narrow particle size distribution, continuous operation and low labor intensity. |
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| Frozen crystallization Coolingcrystallizationissuitableforsubstanceswhosesolubility increases with increasing of temperature. It causes the solute to precipite byloweringthesolutiontemperature.Generally,thehigherthe temperature of the solution, the greater the mass of the solute that the solvent can dissolve, and lowering the temperature will make the solute to become into a solid. The cooling crystallizer is a continuous crystallizer with mother liquor circulation, which are mainly DTB and OSLO. The crystallizer is respectively provided with a crystal growth area and a supersaturation generation area. Through this design, the growth rate of crystal nuclei is low, and the crystals continue to grow in a suspended state.This kind of crystallizer has the characteristics of high purity, large and uniform particles. |
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| Mechanical Vapor Recompression Evaporator MVR is the abbreviation for Mechanical Vapor Recompression technology which is a new technology developed internationally by North America and Europe in the 1990s. The MVR technology is as follows: the secondary vapor generated by the evaporation of the liquid material is compressed by the steam compressor to increase the temperature and pressure, and causing the heat enthalpy to increase, and the vapor then enters the shell side of the evaporator to heat the liquid material on the heated side. After obtaining heat, the liquid material boils and vaporizes to produce secondary vapor, which enters the steam compressor again and is compressed and heated, thus achieving the cyclic utilization of the secondary vapor.The basic idea is to recycle and utilize the latent heat of the secondary vapor, so as to achieve the substitution of electrical energy for steam consumption generated by coal burning. MVR evaporation technology is widely used in many fields such as energy saving(concentration and crystallization solution)and environmental protection(industrial wastewater treatment).MVR technology is more and more concerned and adopted by enterprises due to its high efficiency, low operating cost, reliable performance, and compact structure. The power consumption per ton of water evaporated by the MVR system is18 60kWh(which varies with material characteristics and processing capacity),and there is no need to supplement steam during operation. This not only saves steam but also eliminates the need for a cooling water circulation system. Compared to traditional four-effect evaporators, it saves more than 60% energy and has a running cost of one-third that of the traditional four-effect evaporators, with great energy-saving and consumption reduction effect. |
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