CZ151U1 - Apparatus for cleaning combustion products - Google Patents

Description

Technical field y

The technical solution concerns the equipment for flue gas cleaning from thermal waste disposal, especially industrial and household waste ........

BACKGROUND OF THE INVENTION

Flue gas cleaning devices are known whose construction differs depending on the concentration of the individual pollutants in the flue gas. For high concentrations of dusts with heavy metals, halides, sulfur dioxide and nitrogen oxides, three-stage absorption systems of flue gas cleaning with fully separated circuits on both sides are used, for less demanding cases the system is simplified up to a one-stage absorption system.

In principle, flue gas cleaning devices are based on two processes, namely dry and wet absorption.

Flue gas cleaning devices based on dry absorption consist of a vertical reactor into which a sorbent-scattering nozzle, for example dry calcium hydroxide, opens at the top of the reactor, in the shape of a cyclone separator through which the sorbent is trapped from the off gas and the bottom of the reactor to be redistributed. A bag filter with a pneumatically regenerated filter surface is placed in the end of the cleaning device to trap solid particles entrained by the flue gas

Patent and Trademark Office Ing. JANA VANDÉÚKOVÁ Patent Attorney Prokopova 1590 Vtaiim 258 01

0β08 · * 4’Λ81

The solid sorbent retained on the filter is collected in a collecting silo after pneumatic removal.

The flue gas scrubber based on wet absorption, the so-called wet flue gas scrubber, is constructed according to the pollutant content in the flue gas as one-stage to four-stage, the design of which consists of a wet venturi-type separator. A device where the capture of substances is carried out by the combined injection of water and a basic absorption solution. In the reacting particles. Another embodiment of this step results in gases, compounds of the apparatus mainly absorbing strongly acidic heavy metals and trapping solid columns in tower plastic bodies, formed by a venturi countercurrent system, absorbing several storey packings, e.g. the passes of the individual trays of the weirs, nozzles and passes. The separator-to-foot separators meet the basic process where the absorption columns are absorbed with sodium hydroxide solution on the individual trays of the column. The absorption solution from the bottom of the absorption column is again transferred to the head and circulates in the cleaning process until the dropping rod is exhausted. The pumped solution is regenerated or replaced by fresh solution from the storage tank. In the upper part of the absorption tower or at the mouth of the chimney there is a louver drop separator. The equipment also includes a wet fan for perfect atomization of the neutralization, absorption solution and also a suction fan placed in front of the flue gas outlet into the chimney for maintaining the flue gas vacuum in the whole system of the cleaning device.

The disadvantage of the above-mentioned flue gas cleaning devices is, in particular, the considerable dimensions, especially the height, and the associated demands on the incinerator space. Maintenance and cleaning of existing equipment is laborious.

Patent and áfire office Ing. JANA VANDĚLÍKOVÁ Patent zAetupoo Prokopova 1W0 Vta «m2SeO1 0303/43381

The essence of the technical solution

The flue gas cleaning apparatus according to the invention is characterized in that the washing machine is divided into a primary partition and a side wall by means of a separating partition forming an integral part with the bottom and side walls, wherein the washing machine has at least one partition and at least The bulkhead is located at the same time as the top of the washing machine container and ends above the washing water level and / or the partition is located below the top of the washing machine container and ends below the washing water level, with the bulkheads firmly attached to both side walls. The tube in the primary circuit is provided with at least one nebulizer nozzle and the tube in the secondary circuit is provided with at least one sprinkler nozzle. The primary circuit supply line is equipped with a filter.

The advantage of the flue gas cleaning device according to the technical solution is especially small dimensions corresponding to the size of the combustion device. A great advantage is also easy and quick maintenance of the equipment.

Overview of the drawings

The technical solution is described in more detail by way of example with reference to the accompanying drawing, in which Fig. 1 is a side view of the flue gas cleaning apparatus and Fig. 2 is a front view of the apparatus.

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Patent mkovd office

Ing. JAI

Pata záetupoa

Prokope Vlašim 268 01 »3/43381 * Examples of execution

The flue gas purification apparatus of thermal waste disposal, in particular industrial and household waste (FIG. 1), consists of a washing machine vessel 6 which is a partition 3c forming an integral part with the bottom 1b and the side walls 1c divided into a primary circuit 12 with an inletspa1. in 10 and on the secondary circuit 13 with the flue gas outlet 11. The space inside the container of the washing machine 6 is divided by partitions 3a, 3b fixedly connected to the two side walls 1c so that. the baffles 3a are located at the same time as the top edge of the washing machine container i and end above the wash water surface 12a, 13a and the baffles 3b are located below the top edge of the washing machine container 6 and terminate below the wash water surface 12a, 13a a space 3d in which a tube 4 provided with nozzles 5 and connected to the supply line 6 is located in the upper part of the container of the washing machine 6. The tubes 4 in the primary circuit 12 are provided with nebulizing nozzles 5a along their entire length and the tubes in the secondary circuit 13 are length provided with sprinkling nozzles 5b. A filter 8 is connected in the inlet conduit 6a of the primary circuit 2, and in the inlet conduit 6b of the secondary circuit 83, a filter may also advantageously be connected. The container of the washing machine 6 is closed by a lid 2.

The flue gas cleaning device according to the technical solution works «as follows:

The flue gas cooled in the heat exchanger enters the primary circuit 12 through the inlet 80 of the washer vessel and flows sequentially between the baffles 3a, 3b, alternately above the primary wash water 12a. i.e. below the partition 3a, and below the nebulizer nozzles 5a, i.e. above the partition 3b, which disperse primary wash water 12a into the fine mist into space 3d.

office

Patent and Trademark Office Ing. JAN / «ANGELIKOVA

Patent záotupoe

Prokopova Vlazim 268 01

0303/43381

In the primary circuit 12 most of the chemicals contained in the flue gas are captured and any solid debris is also captured. The primary water 12a circulates in the closed primary circuit 12. By the pump 7a the primary water 12a is pumped into the supply line 6a. it passes through the filter 8 and enters the tube 4, from which it is dispersed into the space 3d by the atomizing nozzles 5a.

After passing through the primary circuit 12, the flue gas enters the secondary circuit 1.3, where it again flows between the partitions 3a, 3b and is sprinkled with the secondary washing water 13a. which is dispersed into the space 3d by the spray nozzles 5b in the form of tiny droplets. The flue gas in the secondary circuit 13 is cleaned of residual chemicals and exits from the washing machine vessel through the outlet 11. The secondary water 13a circulates again in the closed secondary circuit 13, pumped through the pump 7b to the feed line 6b and enters the tube 4 from where Distracted into space 3D.

Claims (12)

Claims PROTECTION FOR CLEANING A device, particularly industrial, characterized by a partition (3c), (1b) and side walls (1c) of flue gas from and t í m O <o 03; 30 'l_ - >>! _r £ - _a <' - <m: -4 thermal disposal of household waste, that the washing machine (1) is an integral part with the bottom forming, divided into a primary circuit (12) and a secondary circuit (13), wherein the washing machine (1) is provided with at least one a baffle (3a) and (3b) and at least one tube (4) connected to the supply line (6) and provided with a nozzle (5). Honor, Flue gas cleaning device according to claim 1, characterized in that the partition (3a) is located at the same time as the upper edge of the washing machine container (1) and ends above the washing water level (12a, 13a) and the partition (3b) is located below the upper edge. of the washing machine (1) and ends below the washing water level (12a, 13a), the partitions (3a, 3b) being fixedly attached to both side walls (1c). Flue gas cleaning device according to claim 1, characterized in that the tube (4) in the primary circuit (12) is provided with at least one discriminator nozzle (5a) and the tube (4) in the secondary circuit (13) is provided with at least one spray nozzle. (5b). Flue gas cleaning device according to claim 1, characterized in that the supply line (6a) of the primary circuit (12) is provided with a filter (8). 0303/43381 Patented by JAN ^ Patente Prokopova office Grandfather plot> 30 Vteáim 268 01 List of reference marks 1 - washing machine container 1a - front wall 1b - bottom lc - side wall 2 - lid 3a - partition 3b - bulkhead 3c - partition 3D - Space between partitions 4 - tube 5 - nozzle 5a - spray nozzle 5b - spray nozzle 6 - supply pipe 6a - primary circuit supply pipe 6b - secondary circuit supply pipe 7a - primary circuit pump 7b - secondary circuit pump 8 - filter 10 - flue gas inlet 11 - output spa1 i n 12 - primary circuit 12a - primary water 13 - secondary circuit 13a - secondary water