Combined pulverized coal storage and supplying device

Abstract

The invention relates to a combined pulverized coal storage and supplying device, which is characterized by comprising a pulverized coal storage tank, wherein a bag-type dust remover is arranged at the inner top of the pulverized coal storage tank; a high level probe is arranged on the upper side wall of the pulverized coal storage tank; a low level probe is arranged on the lower side wall of the pulverized coal storage tank; a plurality of temperature sensors are arranged between the high level probe and the low level probe; the lower part of the pulverized coal storage tank is divided into two tapered bins; a pneumatic fluidizing device and an electric blanking rotary valve are arranged at the bottoms of the two tapered bins; the feed ports of two weighing tanks are correspondingly connected with the discharge holes of two taper bins of the pulverized coal storage tank respectively; the side walls of both the two weighing tanks are hung on a group of weighing sensors fixed on an operating platform; two stirring devices are arranged at the bottoms of the two weighing tanks respectively; a pressure balance tube is arranged between the two weighing tanks and the pulverized coal storage tank respectively; two feeders both comprise feeding screws arranged below the bottoms of the weighing tanks; two primary air fans with hand air valves are arranged below the feeding screws respectively; and a pulverized coal feeding pipe is communicated with the inner top of the pulverized coal storage tank.

Description

technical field [0001] The invention relates to a pulverized coal storage and supply device, in particular to a combined pulverized coal storage and supply device. Background technique [0002] The currently used pulverized coal storage and supply devices generally have the problem of small volume, which cannot meet the needs of large-tonnage boilers. According to experience, the pulverized coal storage in the pulverized coal storage tank should be able to guarantee the consumption of the device for 5 to 10 days. The current pulverized coal storage and supply device used is at most 150m 3 , in the application of large devices, it can only meet the consumption of 1 to 2 days, and a set of pulverized coal storage and supply device corresponds to a boiler, so there are big problems in terms of economy and space layout. Contents of the invention [0003] In view of the above problems, the object of the present invention is to provide a combined pulverized coal storage and sup...

AI Technical Summary

Problems solved by technology

[0002] The currently used pulverized coal storage and supply devices generally have the problem of small volume, which cannot meet the needs of large-tonnage boilers

According to experience, the pulverized coal storage in the pulverized coal storage tank should be able to guarantee the consumption of the device for 5 to 10 days. The current pulverized coal storage and supply device used is at most 150m 3 , in the application of large devices, it can only meet the consumption of 1 to 2 days, and a set of pulverized coal storage and supply device corresponds to a boiler, there are big problems in terms of economy and space layout

Images