SU1342740A1 - Apparatus for heat and water treatment of concrete articles - Google Patents

Abstract

The invention relates to the production of concrete and reinforced concrete products, namely, devices for heat treatment of them. The purpose of the invention is to reduce heat losses. A device for heat treatment of concrete products includes a tube with a chimney, a heat generator with an injection burner and a combustion chamber, and a circulating system. The heat generator is connected to a circulating system with a gas outlet pipe, at which an insert is attached at an angle of 65-70 to the axis with a centrally mounted water dispensing nozzle containing a swirling chamber and a cone. The water spray nozzle is connected to the water mains through a shut-off valve and a control valve with a flow meter to regulate the amount of water dispensed, while providing a fine spray of water in the flow of heat carrier. 2 Il. ((L

Description

The invention otisn lsgs. to the production of concrete and chemical products, namely, to the devices of d.ch thermal processing.

The purpose of the invention is to reduce heat loss.

FIG. schematically shows ycTpoi icTBo for the heat-moisture content of processing concrete products, in FIG. 2, node 1 in FIG. one.

The device comprises a heat treatment chamber 1 with a chimney 2, a heat generator 3 with an injection burner 4 and a combustion chamber 5, a heating system consisting of a fan 6 and a pipeline with pressure 7 and an intake 8 sections. The generator 3 is connected to a Dirkul gas suction system with a tube 9, on which bushing 0 is at an angle of 65–70 to the ori axis and with a centrifugal nozzle 1 1 located in it, having a twisting chamber 12 and a nozzle 13, the longitudinal direction is provided by the threaded connection - 14, and its fixation: in a fixed position - with the help of a lock nut 15. Water from the heating system is supplied to the pipe 16, on which the water edge 17 is installed and the control valve 18 in conjunction with the flow meter.

ycTpoi icTBo works as follows

Included in the work on the given mode are the Dirkul Dionn system and the heat generator. At the same time, the flue gases are due to the decomposition created by the gas outlet. another pipe 9 d: l1zhu11 ims on Dirkul dionnaya system tesh: onosite

When using water diffuser

Lem, coming from chamber 5 of combustion through pipe 9 to the injection section 7 of the Dirkul dionic CTICTCNUJI, mixes the 45th nozzle with the chamber diameter with coolant and increases its temperature;

By opening the tap 17, securing the supply of water from the water mains, regulating valve 18 sets the required flow rate. Water

under the pressure of 0.02-0.04 MPa, the relative humidity of the heat network enters the chamber 17. Spinning the centrifugal dispensing nozzle 11 and through the nozzle 13 it sprays finely and is subsequently consumed: a temperature of 85 C 60-90%. relative humidity of the heat carrier in the heat and moisture treatment chamber with

pareiie in the volume of the gas exhaust pipe 9. The sprayed water torch is directed inside the gas outlet of the neck pipe along the flue gases at an angle of 65–70 to the pipe axis, which does not prevent the large torch angle provided by the nozzle design and the corresponding spray water, also contributes the most

uniform)) the distribution of the flare in the cross section of the pipe and the displacement of the flow of flue gases with nauseous sprays of water. Nozzle location

in the immediate vicinity of the combustion chamber, it provides high, on the order of 500-600 ° C, the temperature of a postioiuix to the evaporation zone of flue gases, a thin spray of water provides

close to the maximum possible area of contact of water with flue gas No. 1 and close to the maximum possible length of the span of part of the water in the gas sweat (1k at a given speed, which

in c (1), with a high temperature of the flue gases, it provides almost nojnioe, or close to that (1m), evaporation of water supplied through the nozzle. Thus, from the moment of the beginning of the water supply to the nozzle

The hot coolant enriched with water vapor enters the chamber of heat and humidity treatment. The temperature and humidity of the coolant entering the heat treatment chamber are regulated by the water consumption in the nozzle and the fuel consumption in the heat source. Water flow within certain limits is controlled by valve 18,

Easier measurements of the injector nozzles allowed the water flow to be set in a wide range.

When using a water dispenser with a nozzle with a diameter of the swirling chamber of mm, with a diameter of output O1 versity of the nozzle, 8 mm (Fig. 2) races: -; water flow can be adjusted within 70-130 kg / h. This provides moisture: the content of the tenon carrier without taking into account 1 a moisture evaporating from concrete, in the range of 0.33–0.62 kg / kg (with an excess air ratio of about 1.5), which corresponds to

l: phi temperature 85 С 60-90%. Comparison of the actual indicators of the relative humidity of the heat carrier in the heat and moisture treatment chamber with

calculated, corresponding to the established water flow at the nozzle, suggests that evaporation is subject to at least 90% of all sprayed water.

The use of the proposed device allows eliminating overdrying of products and ensuring a controlled process of moisture exchange between -. - gave mi and coolant, improve. . heat exchange between the coolant and products, and therefore use a coolant with lower temperatures, eliminate the overheating of individual products, reduce heat losses to the environment through the enclosure of the chambers and with the heated sump to the atmosphere.

40

Formula and 3 o r

A device for heat and humidity treatment of concrete products, a supporting chamber, a circulating coolant system in the form of a fan, suction and discharge pipes, a heat generator consisting of an injection burner, a combustion chamber connected to the flue pipe, and a water spray nozzle connected to the water mains, in that, in order to reduce heat losses, the water-spray nozzle is installed in the wall of the gas exhaust pipe at an angle of 65-70 to the pipe axis in the direction of heat carrier movement.

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Compiled by V. Lebedeva Editor (1. Head of Tehred M. Khodanych Corrector M.11 (

Sunset iiS8 / 16 Circulation 524Subscribed

VNIIPI State Committee C (; SR

on; ie; iaM and the Discoveries and Discoveries inoij, MocKRD, Ж-35, I ayiiicKaq nab. d. 4 / b

Mrchi unjK Tnrniio - iinnnT pn Jiii JC. KC e iTpfii ipnHTHL, g, V;, j pj ,,, -, | ; i |,

Claims (1)

Claim An apparatus for heat and humidity _g machining concrete products, comprising a chamber, a circulation system of coolant in the form of a fan, the suction and discharge pipes, heat source consisting of inzhek10 translational burner, a combustion chamber connected to a flue pipe, and the water-spray nozzle connected to the water network of tlichayuscheesya in that, for the purpose of reducing heat losses, a water spray nozzle is installed in the wall of the gas outlet pipe at an angle of 65-70 ° to the axis of the pipe in the direction of movement of the coolant. FIG. 1 1 34? / 0 (1 I Fig 2 Compiled by V. Lebedev 1'editor O. Golovach Tehred M. Khodanich Corrector M. Ioyao Sunset 4588/16 Circulation 524 Subscribed VPIIPP of the USSR State Committee for Inventions and Discoveries 114) 33, Moscow, Zh-35, Raushskaya nab., L. 4/5 Pron 4 nnjrr tn si no - pop game fi easy nrg * l acceptance, j. ^at ZhGOrchG ",