SU831693A1 - Chamber pump for pneumatic conveying of pulverulent materials - Google Patents

Description

one

The invention relates to equipment for the pneumatic transportation of powdered materials and can be used in stationary cement warehouses of the construction industry, as well as for the pneumatic transportation of powdered materials in other branches of the national economy.

Chamber pumps are known for pneumatically transporting powdered materials, comprising a pump chamber, a transport pipe with a tapered socket, compressed air supply lines, a conical guide 1.

Also known is a chamber pump for the pneumatic transport of powdered materials, comprising a chamber with a loading valve, a transport pipeline, a device for supplying compressed air to the chamber and a distributing manifold 2 communicated with it.

The main disadvantages of the known chamber feeders are the presence of large surfaces of aeration devices, which are arranged horizontally, which leads to irrational use.

feeder tanks, as well as aeration of only the lower layers of the material. In addition, the devices require additional supply of compressed air, necessary for transporting the material, which leads to a decrease in the concentration of the material-air mixture, and, consequently, to an increase in the specific consumption of compressed air.

The purpose of the invention is to reduce energy consumption.

To achieve this goal, in the chamber pump the compressed air supply device into the chamber is made up of elements with side curvilinear surfaces located along the inner perimeter and along the entire height of the cylindrical part of the chamber.

at the ends and the lower part of which are installed porous partitions. The side surfaces of the elements in cross section have the form of hyperbole.

FIG. 1 shows a chamber pump, a longitudinal section; in fig. 2 shows section A-A in FIG.

The pneumatic chamber pump has a chamber 1, a loading hatch 2 with a loading valve 3, a transport pipeline 4, a pipeline 5 for compressed air supply with a distributing manifold, a conical guide 7, a compressed air supply device into the chamber consisting of elements 8 with porous baffles 9. Works chamber pump as follows. The powdered material is fed through the charging port 2 into chamber I from the silo warehouse of the powdered material. When the loading of the chamber 1 is completed, the charging valve 3 is closed and air is supplied through the compressed air supply line 5 to the distribution manifold 6 which distributes it over all the elements 8 of the compressed air supply to the chamber. Material is aerated over the entire surface of the chamber and at the same time the pressure necessary to transport the material is created. Proceed through porous partitions 9 located at the ends of the elements, the air, capturing the material particles, is directed along the lateral surfaces of the elements having a hyperbola shape in cross section, towards the center of the chamber, thus creating the highest concentration of material-air mixture in the discharge zone. Porous partitions 9 located at the bottom of the elements help to improve the material flow through the conical part of the chamber and eliminate the possibility of material sticking at the end of unloading.

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Claims (2)

fpue.l The proposed device allows, through the rational distribution of compressed air throughout the chamber and the directional movement of material k to the discharge zone, to increase the concentration of the material-air mixture, and as a result, to reduce the specific consumption of compressed air. 1. Chambered pump for pneumatically transporting powdered materials comprising a chamber with a loading valve, a transport pipeline, a device for supplying compressed air to the chamber and a connected distribution manifold, characterized in that, for the purpose of energy consumption, a device for supplying compressed air to the chamber made in the form of elements with lateral curvilinear surfaces located along the inner perimeter and over the entire height of the cylindrical part of the chamber; x installed porous septum. 2. Pump according to Claim 1, characterized in that the side surfaces in cross section have the shape of a hyperbola. Sources of information taken into account during the examination 1. USSR author's certificate No. 317589, cl. In 65 G 53/06, 1970. 2. USSR author's certificate number 481510, cl. B 65 G 53/04, 1973.