CN203803270U - Manhole door of bag type dust collector - Google Patents

Abstract

The utility model relates to a manhole door of a bag type dust collector. The manhole door comprises a main door hinged on the bag type dust collector, and is characterized in that a pressure release door is arranged on the main door in a hinged manner, wherein area of the pressure release door is smaller than the area of the main door by 1/10; a chain lifting lug is further arranged on the main door; and a chain connected with a lock ring arranged on the bag type dust collector is further arranged on the chain lifting lug. The manhole door of the bag type dust collector disclosed by the utility model has advantages that the manhole door effectively solves a problem that the manhole door is difficult to open under an online state; and the manhole door is kept in the open state when staff enters the dust collector to carry out online maintenance, so that safety of the maintenance staff is guaranteed.

Description

The manhole door of sack cleaner

Technical field

This patent belongs to the manhole door technical field of negative-pressure operation equipment, particularly relates to a kind of manhole door of sack cleaner.

Background technology

At present, bag dust collector because it is reliable, concentration of emission is low, can on-bne repair etc. advantage more and more extensive in the industry field application of gathering dust, the occasion that on-bne repair function can not be shut down in some explained hereafter (as cement kiln end) is particularly important.For the dust-precipitator of negative-pressure operation, during on-bne repair due to negative pressure, the suction under high negative pressure particularly, existing manhole door is opened very difficult, and manhole door very easily closes after opening under negative pressure state, and the personnel of internal overhaul are caused to danger.

Summary of the invention

This patent provides a kind of manhole door of sack cleaner for solving the technical problem existing in known technology, this manhole door has effectively solved under manhole door presence and has opened difficult problem, and make manhole door be held open state when personnel enter the inner on-bne repair of dust-precipitator, guaranteed maintainer's safety.

A kind of manhole door of sack cleaner, comprise the main door being hingedly mounted on sack cleaner, it is characterized in that: described main door is upper is provided with pressure port in hinged mode, pressure port area is less than the main shop front long-pending 1/10, on main door, be also provided with chain hanger, chain hanger is provided with the chain being connected with the lock ring being arranged on sack cleaner.

Advantage and good effect that this patent has are:

Because this patent adopts technique scheme, on main door, be provided with the pressure port that area is less, make operating personnel when opening, only need less active force just pressure port can be opened, can significantly reduce near the inside and outside differential pressure of main door, thus the difficulty while significantly having reduced main door unlatching.By chain hanger, chain, lock ring, can when manhole door is opened, manhole door be pinned simultaneously,, while having guaranteed manhole door on-bne repair, be held open state.

Accompanying drawing explanation

Fig. 1 is the structural representation of this patent;

Fig. 2 is the A-A cutaway view of Fig. 1;

Fig. 3 is the structural representation that manhole door is lockable under opening.

In figure: 1, main door; 2, pressure port; 3, chain; 4, lock ring; 5, chain hanger; 6, sack cleaner.

The specific embodiment

For further understanding innovation and creation content, the Characteristic of this patent, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:

As shown in Figure 1-2, a kind of manhole door of sack cleaner, comprise the main door 1 being hingedly mounted on sack cleaner, main door is upper is provided with pressure port 2 in hinged mode, pressure port area be the main shop front long-pending 7～8%, pressure port is provided with the handle that pressure port is pinned on main door, on main door, is also provided with chain hanger 5, and chain hanger is provided with the chain 3 being connected with the lock ring 4 being arranged on sack cleaner 6.

The operating principle of this patent is:

As shown in Figure 3, while operating, first unclamp the handle 2 on pressure port under negative pressure state, open pressure port, make device interior and extraneous UNICOM, significantly reduce near the inside and outside differential pressure of main door; Then unclamp the handle on main door 1, open main door 1; Then chain 3 is fixed on lock ring 4, and pins with bolt.Operating personnel can enter into the work of keeping in repair or arrange dust settling pocket in sack cleaner, thereby have avoided deduster to have man-hour in inside, the unexpected generation that the manhole door causing because of negative pressure is closed.

Although by reference to the accompanying drawings the preferred embodiment of this patent is described above; but this patent is not limited to the above-mentioned specific embodiment; the above-mentioned specific embodiment is only schematic; be not restrictive; those of ordinary skill in the art is under the enlightenment of this patent; not departing from the scope situation that this patent aim and claim protect, can also make a lot of forms, for example the area of pressure port is accomplished the main shop front long-pending 5%, 8% or 10%.Within these all belong to the protection domain of this patent.

Claims (1)

1. the manhole door of a sack cleaner, comprise the main door being hingedly mounted on sack cleaner, it is characterized in that: described main door is upper is provided with pressure port in hinged mode, pressure port area is less than the main shop front long-pending 1/10, on main door, be also provided with chain hanger, chain hanger is provided with the chain being connected with the lock ring being arranged on sack cleaner.