SU909440A1 - Unit for neutralizing industrial effluents - Google Patents

Description

(54) INSTALLATION FOR INDUSTRIAL DRAINAGE DISPOSAL

The invention relates to devices for the disposal of industrial effluents and can be used in the chemical and other sectors of the industry in which wastewater is generated and disposed of.

The process of fire disposal of industrial wastes containing a large amount of energy-intensive ballast (water up to 97%), various mineral and organic impurities, which make it difficult to ensure optimal conditions for treating effluents in one fire chamber, require preliminary evaporation and separate treatment in order to complete the neutralization and reduction of specific consumption. fuel.

Installations for the decontamination of industrial effluents are known, including a bubbling evaporator with a submerged burner, a cyclone fire chamber with a tap for the discharge of water, waste water nozzles and a burner device, gas ducts connecting the evaporator to the fire chamber. Organic evaporation and mineralized concentrated effluents are treated separately. The concentrate is processed in a cyclone chamber, where the. The fuel burning account maintains a temperature of 1000–1300 ° C, at which the mineral impurities melt, and the organic matter remaining in the product burns completely.

Closest to the proposed technical essence and the achieved effect is an installation containing firing chambers with burner devices, waste water nozzles and a tap for outputting the water, a bubbling evaporator vyblnenny from the sewage tank and pinch collar separating the firing chambers 2.

15

The disadvantages of the known installations are the presence of two fire chambers, a complex network of communications requiring maintenance and leading to increased fuel and energy consumption for disinfection.

The purpose of the invention is to reduce fuel consumption and increase the completeness of disposal.

The goal is achieved by

25 that, in a facility for the disposal of industrial drains containing a vertical firing chamber with a burner, nozzles for supplying drains,

Claims (2)

30 outlets for gases, which are connected by flue gas ducts with a bubbling type evaporator and taplopepipik, and an additional gas duct between the evaporator and the heat exchanger, the evaporator is ring-shaped, coaxially mounted on the chamber and divided by partitions into sections, each of which are connected by a gas duct with fire chamber. This design allows separate processing of the separated wastewaters and ensures optimum conditions for each type of impurities. At the same time, the completeness of heat utilization of the process is ensured: the heat of treatment of saline wastewater is used inside the process to evaporate the initial effluent, the heat from the evaporation with organic matter is in the heat exchanger or the heat recovery boiler. The evaporator sectioning removes most of the ballast from the process, increases the unit loadings of the chamber and reduces the unit fuel consumption for installation. FIG. 1 shows the installation, longitudinal section; FIG. 2 shows section A-A in FIG. 1. The installation contains fire chambers 1 with a burner 2, waste water nozzles 3, and a melting water outlet 4. Chamber 1 is equipped with a ring of flue-5, formed by cylindrical walls, as well as gas outlets 6 and 7. Coaxially, the firing chamber 1 is equipped with a bubbling evaporator 8 divided by partitions 9 into a series of sections 10, which are connected by ducts 11 to the firing chamber. The evaporator 8 is equipped with nozzles for inputting the initial effluent and withdrawal of the concentrate, in its upper part it is connected to the casing 5. Sectionalized flue duct - the casing 5 is equipped with a valve. The installation works as follows. The fuel and air are fed into the fire chamber 1 through the burner device 2. There, pumped through the wastewater pits 3 are concentrated mineralized effluent from the evaporator 8. The hot combustion products of the fuel in the fire chamber are divided into two streams: one stream, passage the treatment zone of mineralized concentrated wastewaters ensures optimal conditions for their treatment; the second stream through the opening 7 enters the treatment zone of the vapor with organic matter. The products of treatment of mineralized effluent through a series of holes 6 are fed through ducts 11 in section 10 of the evaporator 8. When they are bubbling through the layer of effluent, light boiling organka is distilled off, evaporation of effluent and purification from mineral impurities. The evaporation of the MO. Tank - casing 5 enters the duct connecting the opening 7 of the fire chamber with the heat exchanger. Organic-free evaporation through valve 12 is removed from the process. The distribution of streams of hot fuel combustion products is performed by changing the effluent in the evaporator. The proposed design of the plant provides optimal conditions for the treatment of various impurities, the complete utilization of heat, high specific loads of the decontamination chamber and a significant reduction in specific fuel consumption for decontamination. This ensures the maximum degree of trapping of mineral impurities that can be reused. The reliability of the installation and a wide range of wastewater is ensured. The installation allows a significant amount of ballast to be removed from the process, which leads to fuel savings and an increase in specific and aggregate performance. An inventive plant for the disposal of industrial effluents, comprising a vertical firing chamber with a burner, nozzles for supplying effluents, a discharge outlet, gas outlets through which the firing chamber is connected by gas ducts to a bubbling type evaporator and a heat exchanger, and an additional flue pipe between the evaporator and a heat exchanger, characterized in that, in order to reduce fuel consumption and increase the completeness of neutralization, the evaporator is made annular, mounted coaxially with fire the chamber and divided by partitions into sections, each of which is connected by a flue, with a fire chamber. Sources of information taken into account in the examination 1. Thermal methods of waste disposal .. Ed. K.K. Bogushevskoy and G.P. Bespam tova. L., Himi, 1975, p. 64. 2. USSR author's certificate number 567024, cl. F 23 G.7 / 04, 1976. Cpui.J ig.2 drains