SU802242A1 - Device for making stiff mineral wool slabs - Google Patents

Description

one

The image concerns the production of heat insulating and acoustic hard mineral wool plates and can be used in the building materials industry and other sectors of the national economy.

A device for producing rigid mineral wool boards on synthetic and bitumen binders is known, comprising a continuous mixer, a slurry pipeline with a pump and a distribution bin, a mesh forming conveyor under which a dewatering chamber is installed and a container for collecting the binder i.

The main drawback of the device is the premature dehydration of the pulp in the initial period of the carpet molding. In the manufacture of plig on a dispersed, for example, bitumen binder, this is aggravated by the fact that a significant part of the binder that landed in the mixer is knocked off the fiber in the centrifugal pump and goes into dyPersion, which does not have time to land on the fiber again before dehydration starts and goes off with the press. water, which causes loss of a binder and: reduction in product quality.

The closest to the invention in its technical essence is a device for the manufacture of rigid mineral wool plates, comprising a continuous mixer, a slurry pipeline with a pump and a distribution bin, a mesh forming conveyor with a dewatering chamber installed under it, divided into two compartments with perforated lids, and to collect the binder 2.

This device makes it possible to somewhat slow down the dewatering process in the initial period of carpet molding. However, it also does not provide the necessary conditions for planting the dispersed binder on the fibers.

The purpose of the invention is to improve the quality of the plates produced by providing

nor necessary conditions for full vysaaky dispersed binder on fibers

The goal of the dosgigages is that a device for the manufacture of rigid copper slabs containing a continuous mixer, a slurry pipeline with a pump and a distribution hopper, a mesh molding conveyor with a dewatering chamber installed under it, divided into two compartments equipped with perforated lids, and a tank for collecting the drain, equipped with a xsweier molding located under the working branch between the distribution bin and the second chamber compartment in the course of the molding conveyor movement Drainage by settling table, installed with the possibility of reciprocating motion in the horizontal plane.

The drawing shows a device for making hard mineral wool plates, a general view.

A device for the manufacture of rigid mineral wool plates consists of a continuous mixer 1, a slurry pipeline 2 with a pump 3 and a distribution bin 4, a mesh forming conveyor 5, a dewatering chamber divided by a partition 6 into two compartments

7 and 8, provided with perforated covers 9 and 10, respectively, of a container 11 for collecting a binder, a settler table 12 and a press roll 13 for forming a carpet 14. The compartments 7 and 8 of the dewatering chamber are connected by taps 15 with a container 11 for collecting a binder, and - pipeline 16 with a mixer 1. A settling table 12 is located under the working branch of the conveyor 5 between the distribution bin 4 and the compartment

8 dewatering chambers and installed with the possibility of reciprocating movement in the horizontal plane, for example, using a pneumatic drive 17, in the guides 18, mounted

On the wall of the chamber 7 compartment is deactivated. At that, the settling table 12 can be installed both above and under the lid 9 of the nerve during the movement of the forming conveyor 5 of the compartment 7 of the dewatering chamber. In the embodiment of the device shown in the drawing, the table 12 is located under the cover 9.

The device works as follows.

The starting components, mineral wool and binder, are fed to mixer 1, where they are mixed to the floor.

cheni homogeneous pulp. The pulp obtained in this way is supplied by the pump 3 through the pulp line 2 to the distribution bunker 4, which uniformly spreads the pulp along the web of the mesh forming conveyor 5. The cast pulp enters the zone above the settling table 12, which is made blank, where it is kept in a calm state before dewatering begins This provides the necessary conditions for the full dispensation of the dispersed binder to the fibers. The length of the sludge zone, i.e., the zone above the settling table 12 and, consequently, the residence time in this zone, is adjusted according to the type and amount of the binder by moving the settling table 12 using the actuator 17 towards the compartment 8

dewatering or side cameras

after passing the zone of sludge, as the conveyor 5 advances, it is slowly dehydrated in the zone located above the compartment 7 of the dewatering chamber under the action of the hydrostatic pressure of the bed and then by vacuum suction in the zone located above the section of the dewatering chamber 8. Vacuum suction is ensured by creating a vacuum in compartment 8. At the same time, the mineral wool carpet is compacted, after which the carpet enters the heat treatment chamber and then is cut into required size plates.

The proposed device ensures the rational use of the dispersed binder by ensuring the necessary conditions for its planting on the fibers and allows you to organize the production of high-quality mineral wool insulation on the biguminous binder.

Claims (2)

1. USSR author's certificate N 493357, cl. C 04 B 43 / O2, 1974, 2. Author's certificate of the USSR N9 543517, p. 04 V, 43 / O2, 1975 (prototype). "-Gchmgimga mm shlm .. t: