CN2038900U

CN2038900U - Measuring and self-controlling mechanism for dust-free loading of loose packed cement

Info

Publication number: CN2038900U
Application number: CN 88219748
Authority: CN
Inventors: 俞美; 程鸿机; 曹杰
Original assignee: Bulk Cement Office Of Shandong Economic Commission; SHANDONG BUILDING MATERIAL IND
Current assignee: Bulk Cement Office Of Shandong Economic Commission; SHANDONG BUILDING MATERIAL IND
Priority date: 1988-07-01
Filing date: 1988-07-01
Publication date: 1989-06-07

Abstract

A measuring and self-controlling mechanism for dust-free loading of bulk cement comprises a bulk head, a hoisting system of the bulk head, an interior dust collecting system, a metering device and a microcomputerized autocontrol system. The interior dust collecting system of the utility model collects airborne dust when a bulk truck is loaded and discharges the airborne dust into the bulk truck on the spot, so that dust-free loading can be realized. Meanwhile, the microcomputerized autocontrol system is used to realize the automation of loading, dust collection and metering. The utility model effectively prevents dust pollution and improves work efficiency.

Description

Measuring and self-controlling mechanism for dust-free loading of loose packed cement

The utility model relates to a kind of entrucking mechanism of bulk cement.

The entrucking mechanism major part of the existing bulk cement of China does not have the facility that gathers dust, because during the entrucking of aproll mud, fly upward out a large amount of cement dusts from automobile jar entrance, contain 10 to 20 gram dust in the every cubic meter of gas of its concentration of emission, also surpass this scope sometimes and be higher than domestic " industrial "three wastes" discharging tentative standard " (GBJ far away ₄--73) standard of 150 milligrams of dust-ladens in each cubic meter of gas of regulation.The form of gathering dust of at present domestic existing aproll mud entrucking mechanism is at the fourth phase in 1985 " cement technology " magazine, published " bulk cement automobile machine in bulk " literary composition of Tianjin cement industry designing institute, " cement " magazine of 1987 the 6th phases has been published Shanghai Cement Plant's " bulk cement dustless loading and metering link gear " literary composition of anagenite recklessly, the form of gathering dust that they adopt all is outside dust collecting system, the dust that flies upward during with entrucking is drawn a whole set of dust collecting system outside the entrucking mechanism, the dust removal process complexity of accepting can not be discharged in this Bulk Truck.It need increase more equipment, pipeline, need be equipped with the post workman again.

The purpose of this utility model is at the in-house dust suction facility that has, and the dust that fly upward at automobile jar mouth place during with the cement entrucking is collected by the facility that gathers dust, and directly is discharged in this Bulk Truck the automatic guidance that realize entrucking simultaneously, measure, gathers dust.Both prevent dust from flying, improved workman's labor condition, simplified whole dust collecting system again.

The utility model mechanism is by loading spout, and loading spout hoisting system, inner dust collecting system, gauging device and microcomputer automatic control system are formed.Loading spout is by inside and outside flexible pipe (φ _Outward=600mm, φ _In=250mm) form with inside and outside frustum.And rubber sealant is housed on Outer Taper.So-called inner dust collecting system is meant that dust-precipitator is installed in tremie pipe and forms one with tremie pipe on every side, rather than the independent outside dust collecting system that forms of installing.When bulk cement car is parked on the ground weigher, by the loading spout hoisting system Outer Taper in the loading spout is tightly fallen within on the Bulk Truck jar mouth, cement enters in the automobile jar by inner cone from inner flexible tube.Simultaneously the gas that contains the cement dust that flies upward in the car jar of the blower fan of dust collecting system (forming zone of negative pressure at interior outer flexible tube and automobile jar mouth place) sucks dust-precipitator and gathers dust the purified gas exhaust to atmosphere between the inside and outside flexible pipe of loading spout.When cement was packed q.s into, control system stopped entrucking automatically, by the effect of blowback wind the cement that is detained on the filter bag was fallen in the Bulk Truck, and last loading spout rises.The whole action of this mechanism is finished by microcomputer automatic control.This mechanism is applicable to cement silo side and bottom of the reservior discharging.

The utility model mechanism is simple, convenient, reliable.Both investments of having saved outside dust collection device, pipeline than existing mechanism, and reduce floor area.And the dust of accepting is recovered in this Bulk Truck on the spot.Not only prevented environmental pollution but also reclaimed cement.Estimate that 100 tons of cement of every granting reclaim the 300-400 kilogram approximately.

Accompanying drawing is the utility model bulk cement dustless loading metering auto-controlling structural scheme of mechanism.

Embodiment of the present utility model can be illustrated in conjunction with the accompanying drawings.

Bulk Truck jar mouth 1 is aimed at loading spout 2, tightly drop on jar mouth by the inside and outside frustum of loading spout hoisting system 6 loading spout 2, pipe top 7 connects the feed opening of bulk water hopper dredger in the discharging, cement pipe in the discharging falls during entrucking, open blower fan 8 simultaneously, the air that makes band dust in the automobile jar is along in the loading spout bottom, rise between the Outer Taper, in the warp, outer flexible tube enters filter bag 4 in the dust chamber 3, clean gas after the filtration is by dust chamber 3 tops and by blower fan 8 exhaust to atmospheres, treat that the automatic gauge telltale demonstrates weight and stops pan feeding when up to standard at once, open reverse-blow pipe 5, to dust collecting sleeve 4 blowings, dust on the dust collecting sleeve falls and is discharged in the automobile jar 1, and last loading spout hoisting system 6 is mentioned loading spout 2, and entrucking finishes.

Claims

1, bulk cement dustless loading metering auto-controlling mechanism is made up of loading spout, loading spout hoisting system, dust collecting system, gauging device and microcomputer automatic control system.Feature of the present utility model is that dust collecting system and bulk cement tremie pipe are formed one, is inner dust collecting system;

2, as the mechanism of claim 1, wherein said inner dust collecting system is made up of the filter bag that gathers dust, blower fan and reverse-blow pipe.The cement tremie pipe is by the center of dust-precipitator.The whole recovery vehicle jars of cement dust of the dusty gas that flies upward in the jar when this dust collecting system can be with entrucking, and discharge clean gas;

3, as the mechanism of claim 1,2, wherein said loading spout Outer Taper can be installed a sealing layer;

4,, it is characterized in that the loading spout hoisting system, gather dust, reverse-blow pipe and metering realized automatic operation with the microcomputor program control system as the mechanism of claim 1,2;

5,, it is characterized in that this mechanism is applicable to cement silo side and bottom of the reservior discharging as the mechanism of claim 1,2.