CN2041586U

CN2041586U - Pneumatic dust-collecting unit

Info

Publication number: CN2041586U
Application number: CN 88216524
Authority: CN
Inventors: 许尔领
Original assignee: Structure Member Plant Urban Construction Engineering General Co Beijing Cit; BEIJING CITY INST OF CITY CONSTRUCTION ENGINEERING
Current assignee: Structure Member Plant Urban Construction Engineering General Co Beijing Cit; BEIJING CITY INST OF CITY CONSTRUCTION ENGINEERING
Priority date: 1988-12-27
Filing date: 1988-12-27
Publication date: 1989-07-26

Abstract

The utility model discloses a pneumatic dust collecting unit, comprising a tube body, a dust collecting cage (inner cylinder), a partial flow cone and an end cap. The utility model is characterized in that the tube body can be divided into a top filter section and a bottom filter section, the dust collecting cage is provided with a nylon cloth filter net, with the pneumatic force actions of the pressure adjusting spring at the top of the dust collecting cage and a pressure bearing plate, the filter net can vibrate in order to collect the powder dust. The pneumatic deduster needs not being driven by electric power, the product cost can be reduced for 90% than exiting electric power pulse bag dust collecting unit, and the dedusting efficiency is more than 90%. The utility model is suitable for storages and places of various concentrate drained fluidity powder dust such as cements, whitewash, etc.

Description

Pneumatic dust-collecting unit

The utility model belongs to dust removal by ventilation equipment, or belongs to the cleaning equipment that prevents that the flue dust dirt from overflowing from generation.

At present, send at wind on the silo device of bulk powder, the canopy of generally only setting up defences utilizes the local way that changes airflow direction, prevents that rainwater from entering, and the waste gas that will contain dust directly is discharged in the atmosphere.Like this, waste many powders, polluted environment simultaneously.In order to reclaim the mobile dust of this concentrated discharging, existing way is to add electronic pulse bag type dust collector.This sack cleaner relies on air-introduced machine to force air to pass through cloth bag, dust is remained on the cloth bag, rely on electronic impulse oscillation device to make cloth bag get rid of dust in vibration, shake again, the efficient of this sack cleaner is very high, but need power supply power, cost is also somewhat expensive.

The purpose of this utility model is to propose a kind of new cleaner, utilizes natural wind dynamic pressure air inducing to filter, without power supply; Utilize the dust on the mechanical level pressure vibration removing filter screen,, reduce cost with simplified structure.

Pneumatic deduster of the present utility model by cylindrical shell, remove dust cage (inner core), shunting cone, end cap and form, it is characterized in that cylindrical shell is cylindricality, with diaphragm plate cylindrical shell is separated into the two sections fillter section, remove dust cage in the setting of cylindrical shell centres, remove the dust cage center vertical long bolt is set, its lower end connects the shunting cone, and its upper end is provided with regulator and is connected with the cylindrical shell end cap.

Removing dust cage is a mouse-cage type cylinder, makes filter screen with organic fiber cloth (as nylon cloth) around the cylinder, and the whole dust cage that removes can rely on the effect of pressure spring and pneumatic pressure to move back and forth vertically along long bolt and cylindrical shell diaphragm plate edge.

Regulator is made up of the look nut, pressure spring and the bearing plate that are located on the long bolt, utilizes look nut to set up the progress of work of pressure spring, to control pneumatic thrust, relies on the compression of pressure spring to reset as the power of mechanical oscillation.

Its operation principle is that dust cage Inner filter net adhesion dust is too much when removing, and when increasing resistance, removes the interior pneumatic pressure of dust cage and increases, and moves on the bearing plate on the pushing tow long bolt, has compressed pressure spring simultaneously; When dust under pneumatic pressure effect, after being discharged by the bearing plate and the gap of removing the dust cage upper edge, pressure spring resets, and promotes the bearing plate bump and removes dust cage, causes that dust shakes on the filter screen.

This pneumatic deduster is compared with existing electronic pulse bag type dust collector, and its advantage is can be without driven by power, and product cost reduces by 90%, and efficiency of dust collection is still more than 90%.As be used in the wind of producing 100000 cubic meter concrete mixing plants per year and give in the cement silo, 300 tons of annual recyclable cement dusts are worth more than 20,000 yuan.

Below in conjunction with drawings and Examples, the utility model is further described.

Fig. 1 is the structure chart of pneumatic deduster.

As seen from the figure, pneumatic deduster is formed a diameter 600MM by upper shell 1, lower shell 2, diaphragm plate 3, and the cylindrical shell of high 1300MM is made with metallic plate or plastic plate.What a diameter 300MM was established at the cylindrical shell center removes dust cage 4 and long bolt 5.The long bolt lower end connects shunting cone 6, and is fixedly mounted on the cylindrical shell, and the long bolt upper end is established look nut 7, pressure spring 8, bearing plate 9 and is connected with cylindrical shell end cap 10.

Removing dust cage encloses with nylon cloth formation filter screen 11 along the cylinder periphery.

The pressure spring upper end is bearing in the look nut place on long bolt top, and the lower end is bearing on the bearing plate, and bearing plate is that a circle is dull and stereotyped, can move up and down under the pneumatic pressure effect of dust.

The wind that pneumatic deduster is installed in 500 tons of capacity send the exhaust ports of bulk cement silo or ash can.When the powder mist is entered in the cylindrical shell by the pneumatic deduster lower end, will enter cylindrical shell lower end fillter section along the shunting cone, enter except that dust cage inside by filter screen, promptly filter through one-level, a part of powder is because of the filter screen resistance whereabouts of slowing down.The powder mist continues to rise, and enters the cylindrical shell upper end through filtering once more except that the dust cage upper sieve again, through the cascade filtration section.Powder gas through cascade filtration becomes pure qi (oxygen) substantially, rises to cylindrical shell end cap place and drains in the atmosphere.

Because the dust removal and filtration time is permanent or powder is moist, powder will be bonded on the filter screen, and dust-precipitator efficient is reduced, and internal pressure increases.When internal pressure reaches pressure limit such as the 4kg/cm that pressure spring is set up ²The time, will promote to move on the bearing plate, the compression pressure spring drives to remove on the dust cage and moves.

Owing to move distance on the bearing plate with unequal except that moving distance on the dust cage, it occurs the gap each other, powder gas can be overflowed along the gap, make and remove the dust cage internal pressure and die-off, force pressure spring to reset, bump removes dust cage, makes filter screen produce vibration and shake, the powder that is bonded on the filter screen is just shaken off to dispose, and recovers filter capacity.So repeatedly, form automatic working cycle, reach the purpose of gathering dust.

Pneumatic deduster can be used on gathering dust of cement, lime, the storage of various powder, can according to the size adjustment spring pressure of pneumatic pressure, satisfy the needs of multiple situation.

Claims

1, a kind of deduster, by cylindrical shell, remove dust cage (inner core), shunting cone, end cap and form, it is characterized in that cylindrical shell is cylindricality, be provided with diaphragm plate, the cylindrical shell center is provided with except that dust cage and long bolt, and the long bolt lower end is fixedly connected on the shunting cone, and the upper end is connected with the regulator of being made up of look nut, pressure spring, bearing plate, be fixed on the cylindrical shell end cap, remove dust cage organic fiber cloth filter screen is housed on every side.