CN2789195Y

CN2789195Y - Blade double-layer unloading valve

Info

Publication number: CN2789195Y
Application number: CN 200520071410
Authority: CN
Inventors: 仇九桃; 汤明凤; 洪永年; 许宏辉; 程建国
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-04-29
Filing date: 2005-04-29
Publication date: 2006-06-21
Anticipated expiration: 2015-04-29

Abstract

The utility model discloses a blade double-layer dust-unloading valve which mainly relates to a negative pressure dust collector, such as large fume channels of metallurgy sintering devices, electric dust collectors, bag dust collectors, cyclone dust collectors, etc. The utility model comprises an upper dust-unloading valve, a lower dust-unloading valve and a driving device, wherein the driving device respectively controls the upper dust-unloading valve and the lower dust-unloading valve to open and close, the upper dust-unloading valve and the lower dust-unloading valve are composed of valve bodies, valve seats and valve covers, and the driving device is composed of a motor, a speed reducer, a crank connecting rod and a heavy bob. When the valve seats and the valve covers are closed, the contacting point forms a blade-shaped sealing fit, and the utility model solves the problem that the utility model can not be sealed because of particle materials when the valve seats and the valve covers are closed, so that the gastight performance of the complete device is increased.

Description

A kind of blade Double-deck cinder discharge valve

Technical field

The utility model relates to a kind of at negative pressure dust removing devices such as metallurgy sintered machine large flue, electric dust collector, bag dust collector, duct cyclone, and employed leak tightness Double-deck cinder discharge valve in other dry type environmental protection depression dust-removing equipment.

Background technology

Employed unloading valve in existing metallurgy sintered machine large flue and the environmental protection negative pressure dry dust removal device, as the disclosed unloading valve of Chinese patent ZL03251527.8, because of its structural reason, sealing property is not strong, cause entire equipment to be leaked out, the defective that operating cost is high.

Summary of the invention

At the deficiencies in the prior art, the utility model provides a kind of good seal performance, a kind of blade Double-deck cinder discharge valve that operating cost is low.

The utility model is to realize above-mentioned purpose by following technical solution,

A kind of blade Double-deck cinder discharge valve, comprise upper and lower unloading valve and actuating device, described actuating device is controlled the switching of upper and lower unloading valve respectively, described unloading valve up and down is made of valve body, valve seat and valve gap, described actuating device is made of motor, reductor, crank connecting link and hammer, when its key was that described valve seat and valve gap are closed, the contact position was that knife-edge is sealed and matched.

Described valve seat periphery shape blade, formation was sealed and matched when itself and valve gap were closed.

Described valve gap periphery likeness in form blade is sealed and matched with valve seat formation when it is closed.

Valve seat of the present utility model and valve gap are closed the contact position and are designed to knife-edge and are sealed and matched, make attached on the valve cover surfaces or valve gap reset moment particle the likeness in form blade interface thoroughly pulverize, thereby can get rid of effectively because of interface owing to there is the granular material can not the leak free problem, improve the whole airtightness energy.

Description of drawings

Fig. 1 is the structural representation of the utility model specific embodiment.

The specific embodiment

With reference to the accompanying drawings, a kind of blade Double-deck cinder discharge valve is made of upper and lower valve body and actuating device, and upper and lower unloading valve is welded as a whole; Described upper and lower unloading valve constitutes by valve body 1, valve seat 2 and valve gap 3; Described valve seat 2 periphery likeness in form blades, when valve gap 3 is closed, form blade with valve seat 2 and be sealed and matched, make attached to valve gap 3 lip-deep particles and thoroughly pulverize, get rid of effectively because of interface because granular material can not make valve seat 2 and valve gap 3 leak free problems at the interface of likeness in form blade; Described actuating device is made of motor, reductor, crank connecting link 4 and weight 5, and the crank on the reductor rotates, and drives upper and lower crank connecting link alternatively swinging, spurs upper and lower aditus laryngis place valve gap 3 and opens and closes alternately, and normality lower heavy punch 5 makes valve gap 3 be in closed condition.

Claims

1, a kind of blade Double-deck cinder discharge valve, comprise upper and lower unloading valve and actuating device, described actuating device is controlled the switching of upper and lower unloading valve respectively, described unloading valve up and down is made of valve body (1), valve seat (2) and valve gap (3), described actuating device is made of motor, reductor, crank connecting link (4) and weight (5), it is characterized in that: described valve seat (2) and valve gap (3) are when closing, and the contact position is that knife-edge is sealed and matched.

2, a kind of blade Double-deck cinder discharge valve according to claim 1 is characterized in that: described valve seat (2) periphery likeness in form blade, itself and valve gap (3) form when closing and are sealed and matched.

3, a kind of blade Double-deck cinder discharge valve according to claim 1 is characterized in that: described valve gap (3) periphery likeness in form blade is sealed and matched with valve seat (2) formation when it is closed.