CN2228797Y

CN2228797Y - High-efficiency deduster

Info

Publication number: CN2228797Y
Application number: CN 95236368
Authority: CN
Inventors: 唐祥轩
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-03-12
Filing date: 1995-03-12
Publication date: 1996-06-12
Anticipated expiration: 2005-03-12

Abstract

The utility model relates to a high-efficiency ash removing deduster which combines airflow vibration and mechanical vibration. The high-efficiency ash removing deduster is composed of a box body, an air inlet pipe, an exhaust pipe, a positive-pressure wind pipe, a differential pressure transmitter, a screw conveyer, a filter bag, a three-way valve, a chain, a chain wheel, a motor, etc. The high-efficiency ash removing deduster is mainly characterized in that airflow directions inside and outside the filter bag and the alternating changes of air pressures are controlled by the purpose-made three-way valve so that the filter bag is vibrated at a high speed up and down repeatedly by an eccentric wheel and a spring when the filter bag generates low-speed transverse vibration so as to realize ash removal and dedusting. The high-efficiency ash removing deduster is suitable for the ash removal dedusting and the reutilization of dry and wet powder dust. Compared with the original technical products, the high-efficiency ash removing deduster has a plurality of advantages.

Description

Efficient ash cleaning and dust removing device

The utility model is the efficient ash cleaning and dust removing device that a kind of airstream vibration combines with mechanical oscillation.

Humidity, the dust that viscosity is bigger, though wet cleanings such as available water film dust-remover, but for many producers of metallurgy industry such as building materials producers such as cement, refractory material and manganese powder factories, this dust is a kind of raw material of preciousness often, if use wet cleaning, dust is difficult to reclaim, and can cause secondary pollution.The also available certainly electrostatic precipitator of this kind dust is collected, but it costs an arm and a leg, and many medium and small producers think highly of and cannot afford.And the sack cleaner valency is not high, and can reclaim dust, and is more suitable, but it is not good for humidity, dust ash-removal effect that viscosity is bigger, this drawbacks limit its promoting the use of in departments such as building material industries.

The efficient ash cleaning and dust removing device of the pocket type that provides a kind of airstream vibration to combine with mechanical oscillation is provided the purpose of this utility model.Its unique function is: use a kind of better simply mechanism, can produce low speed oscillation crosswise and vibration up and down reciprocatingly fast simultaneously, thereby can effectively remove the dust stratification on the filter bag, comprise humidity, the dust stratification that viscosity is bigger.Deashing does not have the dead angle, the efficient height, and energy consumption is low, and can carry out automatic control according to the resistance size again, and is easy to operate, safe and reliable.

Unique function of the present utility model realizes by following scheme: design a kind of novel three-way valve and control alternately changing of inside and outside airflow direction of filter bag and air pressure, so that filter bag produces the low speed oscillation crosswise, simultaneously, utilize eccentric wheel, spring to impel filter bag to do fast vibration up and down reciprocatingly, realize its intended purposes with this with suspension bracket.

Advantage of the present utility model is: deashing thoroughly, no dead angle, can not only remove dried dust, also humidity, dust that viscosity is bigger clearly; Do not need compressed air, the saving energy; Simple in structure, materials are economized, and are easy to make; Because of there not being bump, amplitude is little, so noiselessness, life of bag filter is long; Adopt Mechanically programm's control, use easy to maintenance; Carry out automatic control according to the resistance size, operation is reasonable, safety, reliable.

Architectural overview of the present utility model is as follows: deduster is rectangle, and body [3] has several operating rooms (among the figure being four).Have dividing plate [24] to separate between adjacent two Room, but the flue-dust retainer of deduster bottom is communicated with.Every chamber upside all is equipped with triple valve [10], and this valve links to each other with exhaust discharge pipe [8], positive pressure ventilation pipe [9] again; The mandrel external part of valve is equipped with sprocket wheel [7], and chain [5] just places on these sprocket wheels.The top of deduster is provided with suspension bracket [16], in order to hang filter bag [21] usefulness of double as vibrating grid again.The suspension bracket top is provided with eccentric wheel [14] and turning cylinder.Some of filter bags all are equipped with in every chamber.Filter bag is circular, in flexible back bone [20] is arranged.The filter bag upper end is hung on the suspension bracket, and the lower end tightly is tied on the inflator of porous plate.Blast pipe [2] is located at the middle and lower part of deduster one side, and blast pipe [8] is located at the top of deduster, and anti-blocking pressure tester is housed between air inlet pipe, blast pipe.There is conduit to link to each other on it with differential pressure transmitter [4].The dedusting body also is provided with access door [19], and the bottom is a flue-dust retainer, and dust is discharged by the auger conveyor [1] of ash bucket lower end.

Below in conjunction with accompanying drawing structure of the present utility model and working condition are described further:

Accompanying drawing 1 is a front view of the present utility model.

Accompanying drawing 2 is left views of the present utility model.

Accompanying drawing 3 is triple valves of the present utility model.

In the accompanying drawings, 1---auger conveyor, 2---blast pipe, 3---casing, 4---differential pressure transmitter, 5---chain, 6---unit head, 7---sprocket wheel, 8---the exhaust discharge pipe, 9---positive pressure ventilation pipe, 10---triple valve, 11---vibrating motor, 12---power transmission shaft, 13---spring, 14---eccentric wheel, 15---bearing support, 16---suspension bracket, 17---supporting base, 18---air blast, 19---access door, 20---Filter-bag carcass, 21---filter bag, 22---porous plate, 23---electrical control cubicles, 24---dividing plate, 25---triple-valve body, 26---spool, 27---poppet shaft, 28---the valve end cap, 29,30---valve hole, 31---valve core through hole.

Referring to accompanying drawing 1,2, the utility model is by auger conveyor [1], blast pipe [2], casing [3], differential pressure transmitter [4], chain [5], unit head [6], sprocket wheel [7], blast pipe [8], positive pressure ventilation pipe [9], triple valve [10], vibrating motor [11], power transmission shaft [12], spring [13], eccentric wheel [14], support [15], suspension bracket [16], supporting base [17], air blast [18], access door [19], Filter-bag carcass [20], filter bag [21], porous plate [22], dividing plate [24] and electrical control cubicles [23] are formed, rectangular box [3] sets up a plurality of filter bags [21] dirt pocket separately, separate with dividing plate [24] between each dirt pocket, the dust hopper of each bottom, chamber is connected, auger conveyor [1] is equipped with in the ash bucket lower end, side on casing top is equipped with chain [5], unit head [6], sprocket wheel [7], discharge pipe [8], positive pressure ventilation pipe [9] and triple valve [10], the opposite side of casing is equipped with vibrating motor [11], access door [19] is provided with air intake porous plate [22] in casing [3] middle and lower part.Be provided with triple valve [10] in the gas of being made up of positive pressure ventilation pipe [9], air blast [18] etc. shakes mechanism, valve body [25] links to each other with discharge pipe [8] with positive pressure ventilation pipe [9] respectively, and this valve body [25] is provided with pore [29,30], and mandrel is provided with pore [31].Suspension bracket [16] in the mechanical oscillation mechanism that is made up of power transmission shaft [12], spring [13], eccentric wheel [14], support [15], suspension bracket [16] etc. is established borehole jack for its four jiaos and is gone into above the vibrating spring [13] on supporting base [17] locating shaft, hangs filter bag.Filter bag [21] is an inward flow filtration-type, and being provided with in the filter bag can be with the flexible flexible back bone [20] of filter bag.Be provided with the differential pressure transmitter [4] of deciding the dedusting of resistance control automatic ash removing between blast pipe [2] and the discharge pipe [8].

When deduster was worked, dusty gas entered lower box from blast pipe [2], and the porous plate [22] through each chamber enters filter bag [21], and the purified gas behind the filter dirt is discharged from blast pipe [8].During normal the operation, the exhaust passage of triple valve [10] communicates with blast pipe [8], and positive pressure ventilation pipe can not enter.At this moment, gas flows in bag outside the bag, and the bag internal gas pressure is greater than the outer air pressure of bag, filter bag tympanites; Resistance rises after the attached dust of filter bag [21] internal surface area.When resistance reached setting value, differential pressure transmitter [4] was connected power supply, and the motor of the motor of auger conveyor [1] and unit head [6] begins to rotate.Unit head [6] drives chain [5] motion.After three-way valve core that chain drives a certain operating room turned over certain angle, the exhaust passage was closed, and discharge this chamber then airless, is in relative static conditions.This moment, air blast [18] and vibrating motor [11] promptly began to rotate.After spool turned over certain angle again, the malleation air channel was open-minded, and positive pressure air enters the operating room, gas flows in the bag outside bag, the outer air pressure of bag this moment is greater than bag internal gas pressure (annotate: no inverted draft exists in the bag, and resistance is little, so the pressure of malleation air-flow can hang down), filter bag is flattened, collide with bag inner frame [20], produce once vibration, at a cleaning cycle, can only produce so several times vibration, belong to low speed vibration.Owing to this vibration is to lean on the change of airflow direction and pressure to produce, the formula so the real gas of genus shakes.When low speed gas shook, vibrating motor [11] drove power transmission shaft [12] and rotates, and under the cooperation of spring [13], impelled filter bag to produce the little vibration up and down reciprocatingly fast of amplitude when deashing.Because this vibration produces by mechanical force, and speed is very fast, so be referred to as quick mechanical oscillation.When three-way valve core continued to turn over certain angle, vibrating motor [11] shut down, and the malleation air channel is closed, and open the exhaust passage, and this chamber deashing finishes, and recovered operate as normal.Chain [5] moves forward, and drives next operating room and carries out deashing, till each chamber deashing finishes.Resistance descends behind the deashing, and the motor of unit head [6], air blast [18] and auger conveyor [1] just quits work.If resistance is still more than or equal to setting value behind the deashing, then unit head [6] remains in operation, and carries out deashing.Have only a chamber to quit work during deashing, all the other each chambers are still in dedusting, so purification work is continuous.

Claims

1, a kind of efficient ash cleaning and dust removing device, its member comprises auger conveyor [1], blast pipe [2], casing [3], differential pressure transmitter [4], chain [5], unit head [6], sprocket wheel [7], blast pipe [8], positive pressure ventilation pipe [9], triple valve [10], vibrating motor [11], power transmission shaft [12], spring [13], eccentric wheel [14], support [15], suspension bracket [16], supporting base [17], air blast [18], access door [19], Filter-bag carcass [20], filter bag [21], porous plate [22], dividing plate [24] and electrical control cubicles [23], it is characterized in that rectangular box [3] sets up a plurality of filter bag dirt pockets separately, separate with dividing plate [24] between each chamber, the dust hopper of each bottom, chamber all communicates, auger conveyor [1] is equipped with in the ash bucket lower end, side on casing top is equipped with chain [5], unit head [6], sprocket wheel [7], discharge pipe [8], positive pressure ventilation pipe [9] and triple valve [10] etc., the opposite side of casing is equipped with vibrating motor [11], access door [19] is equipped with air intake porous plate [22] in the casing middle and lower part.

2, efficient ash cleaning and dust removing device as claimed in claim 1 is characterized in that: by chain [5] in the transmission system of chain [5], chain [7] formation many rows are arranged, and roller of each row is beyond count identical.

3, efficient ash cleaning and dust removing device as claimed in claim 1, it is characterized in that shaking in the mechanism triple valve [10] by valve body [25], spool [26], mandrel [27], end cap formations such as [28] by the gas that triple valve [10], positive pressure ventilation pipe [9], air blast [18] are formed, valve body is provided with pore [29,30], mandrel is provided with pore [31], and valve body links to each other with discharge pipe [8] with positive pressure ventilation pipe [9] respectively.

4, efficient ash cleaning and dust removing device as claimed in claim 1 is characterized in that: form [16] four jiaos on suspension bracket hanging filter bag in the mechanical oscillation mechanism by power transmission shaft [12], spring [13], eccentric wheel [14], support [15], suspension bracket [16] etc. and establish borehole jack and go into above the vibrating spring [13] on the locating shaft of supporting base [17].

5, efficient ash cleaning and dust removing device as claimed in claim 1 is characterized in that: filter bag [21] is an inward flow filtration-type, and being provided with in the bag can be with the flexible flexible back bone [20] of filter bag.

6, efficient ash cleaning and dust removing device as claimed in claim 1 is characterized in that: be provided with the differential pressure transmitter [4] of deciding the dedusting of resistance control automatic ash removing between blast pipe [2] and the discharge pipe [8].