SU237651A1 - VOLTAGE CHAMBER - Google Patents

Description

There are well-known continuous junction chambers for teil-wet processing of concrete, kelezobetonnyh.ch, etc. products, isothermal extract and cooling.

The purpose of the invention is to reduce the number of maintenance mechanisms. This is achieved by the fact that in the proposed chamber a tunnel is made by two-haired ones, the upper one of which is an abrasive pusher for moving the products upwards.

The drawing schematically shows an oil steaming chamber.

The sloping tunnel has a completely obstructed raised end. The entrance end of the tunnel is closed by the shutter curtain 1. The tunnel has two Russa roller tables or rail tracks for the sequencing of products in forms or wagons. The notolokh, live rolls and the floor of the tunnel are made with a slope to the entrance side 1 Within 5 °. Due to the slope of the ceiling, when steam is supplied through a perforated pipe 2, a purely vapor zone is created in the raised dead-end part of the tunnel, the lower limit of which lies approximately at the level a. As the slope increases, the expansion of the vapor zone will decrease. However, this will require the use of a more powerful pusher 3 or more. Massive stops 4. A decrease in slope may cause delays when rolling out products and an increase in the flow of clean steam to the input side of the gauge.

Raw products 5. Are served by the pusher. Conventionally shown twelve products in one trance.

Depending on the productivity and time of the heat treatment or the number of products on one floor can be changed. Non-linear and cooled products roll out between the columns of the pusher due to the slope of the roller table. The supply and issuance of products takes 1-2 minutes during an open curtain shutter. Between cycles for 10-20 minutes the curtain is closed.

Raw products are placed on the upper rus and they are heated by the heat of the cooling products on the bottom rus. For intensification of heat transfer, heat exchange between cooling finished products and heated cheese products, counter-current-flow circulation of the vapor-air medium is created using an axial-flow fan.

The position and number of suction 7 centner supply 8 holes to the fan is shown conditionally. Znrk speed liruyushche1 1 environment in the tunnel about 4-5.

To prevent clean steam from moving with the vapor mixture, one or more flexible partitions 9 made of iroresinated fabric or synthetic material are installed. Instead curbing you can set the shutter curtain. In that

If this is the case, the air inlets of the fan should be moved to the left of the curtain. The movement of the vapor-air mixture as indicated in the drawing should eliminate the G0 | natural horizontal circulation of the medium.

Raw products, half the length of the chamber, are heated to 70-80 ° C, due to the heat of the cooled products and flowing down the bottom and the form. 1 condensate. Condensate cooled to 40-50 ° C. It is possible not to be discharged into the sewage system, but to be collected in wet 10 and used for POLISHING products cooled in the chamber. Heated to a specified temperature, raw products approximately in the middle of the chamber length are inserted into the clean steam zone. Here is the rapid heating of products to 100 ° C.

In order to avoid cold air leaking in the chamber, an overpressure of 10–30 n / m should be maintained, and so that the vapor-air mixture does not create for its exit slots in the chamber enclosures or the curtain seal, a breathing pipe // with hydraulic clalanol is provided. In this case, the intermediate curtain in KaNtepe can not install.

At the end of the upper deck, the simplest reducer for a single product is placed. In a humid hot environment, there is only a sloping platform and a snanzer rod. The hydraulic cylinders for the other mechanisms are located behind a moisture-proof partition, which has seals for lowering the rods.

When switching to the pizhny Rus, depending on the slope, the product either immediately leaves the clean steam zone, or moves for a while longer. Coming out of the steam zone, the product can be immediately cooled by the circulating vapor-air medium, but it can move for a while but the slope without intensive cooling. This depends on the location of the inlet 7 from the fan — whether it is positioned as shown in the drawing or to the right in the direction of the descender.

Steamed and cooled products at 40-50 ° C leave the chamber.

If you need to reduce the cooling time, you can not load the lower rus completely, on the contrary, in order to increase the warm-up time, raw products should be supplied. In this case, the lowering device will turn into a lift, and the direction of movement of the steam / air mixture in the chamber will change to the opposite.

For repairs and servicing, a corridor with a special

overlap.

In addition, it is possible to take the entire chamber outside the workshop, and in the building to leave only the front part where the supply and unloading of products takes place. Low camera height

allows you to build it below the floor level of the pitch, and use the territory for sheaping and storing products.

Subject invention

A continuous steam chamber for heat and moisture treatment of concrete, reinforced concrete and other products, isotherms of exposure and cooling, including a tunnel, characterized in that, in order to reduce the number of servicing mechanisms, the tunnel is made oblique and two-level; of which is equipped with a pusher for moving articles.