CN209714654U - Less trouble ferrosilicon is poured flue gas processing device - Google Patents

Abstract

A kind of less trouble ferrosilicon casting flue gas processing device, including exhaust fume collecting hood, collect smoke box, cooler, negative-pressure air fan, deduster, exhaust fume collecting hood, collection smoke box is placed in ferrosilicon pouring hall, cooler, negative-pressure air fan, deduster is placed in outside ferrosilicon pouring hall, the beneficial effects of the utility model are, high-temperature flue gas is after exhaust fume collecting hood is collected, into collection smoke box preliminary sedimentation, enter back into cooler, the first partition being arranged in cooler, second partition efficiently separates out particulate matter, filter leaching material is avoided to scratch, the negative tempperature coefficient thermistor installed in the linkage section of right side can control the conveying capacity of negative-pressure air fan according to the temperature for the high-temperature flue gas for entering cooler, and then control the temperature for entering the high-temperature flue gas of deduster, avoid filter leaching material scaling loss, each filter is mounted in independent filter chamber, after filter scratches, it can By closing corresponding first solenoid valve, second solenoid valve is not shut down replacement, production disruption caused by avoiding because of maintenance of equipment.

Description

Less trouble ferrosilicon is poured flue gas processing device

Technical field

The utility model relates to ferrosilicon smelting flue gas collecting device technical field, in particular to a kind of less trouble ferrosilicon pours Infuse flue gas processing device.

Background technique

A large amount of high-temperature flue gas are generated in ferrosilicon production process, high-temperature flue gas can be taken during large-scale deduster is collected The melt granules object of solidification with hard, these irregular particulate matters are finally collected to deduster by pipeline, irregular Particulate matter can scratch the filter leaching material of deduster, high-temperature flue gas can also be burnt out in the filter surfaces movement of deduster Filter leaching material, so that deduster can not work normally, the filter leaching material for being scratched or being burnt out needs to stop dedusting when replacing The operation of device, leads to production disruption, influences normally to produce.

Summary of the invention

In view of this, in view of the above deficiencies, it is necessary to propose it is a kind of can prevent filter leaching material damage and do not shut down more Change the ferrosilicon casting flue gas processing device of filter.

A kind of less trouble ferrosilicon is poured flue gas processing device, including exhaust fume collecting hood, collection smoke box, cooler, negative-pressure air fan, removes Dirt device, the exhaust fume collecting hood, collection smoke box are placed in ferrosilicon pouring hall, and the cooler, negative-pressure air fan, deduster are placed in ferrosilicon and pour It infuses outside workshop, for the exhaust fume collecting hood at door shape, the exhaust fume collecting hood cover is buckled in the surface of casting cover half component pouring head, the collection Smoke box is installed at the top of exhaust fume collecting hood, and exhaust fume collecting hood roof is equipped with ventilation hole, and the ventilation hole of exhaust fume collecting hood roof is connect with the entrance of collection smoke box, The cooler is the cabinet of a both ends open, and it is cooling section, cooling section in the middle part of cabinet that the left and right ends of cabinet, which are linkage section, Internal diameter be greater than the internal diameter of linkage section, be provided with multiple first partitions, the first partition and cooling from left to right in cooling section The roof of section inner cavity, front side wall, rear wall contact, first partition is not contacted with the bottom wall of cooling section inner cavity, from a left side in cooling section To right setting there are also multiple second partitions, the second partition is contacted with the bottom wall of cooling section inner cavity, front side wall, rear wall, the Two partitions are not contacted with the roof of cooling section inner cavity, and the first partition, second partition are staggered, with by first partition, Second partition forms the exhaust gases passes of tortuous trend in cooling section, and roof, front side wall, rear wall, the bottom wall of cooling section are Sandwich, first partition, second partition are also sandwich, roof, front side wall, rear wall, the bottom wall and of cooling section One partition, second partition are homogeneously intercommunicated, roof, front side wall, rear wall, bottom wall and the first partition of cooling section, second every Circulation has cooling medium in plate, to cool down the high-temperature flue gas in cooling section, the port of left side linkage section and the entrance of negative-pressure air fan The port of connection, right side linkage section is connect with the outlet of collection smoke box, and negative-pressure air fan is connect with AC power source, and the cooler also has There is the device for being connected in series and carrying out by the size of change resistance value rotational speed regulation with negative-pressure air fan and AC power source, it is described The device of rotational speed regulation includes being mounted on the right side with negative-pressure air fan, the concatenated switch of AC power source, thermistor, the thermistor In the inner cavity of side linkage section, the thermistor is negative tempperature coefficient thermistor, and deduster includes dust cleaning case, the first connection Pipe, the second connecting tube, the first solenoid valve, second solenoid valve, dedusting pipeline, blowback lines, the dedusting box cavity is from top to bottom Inlet plenum, filter chamber, dust collection chamber are divided by first level partition, the second horizontal baffle, filter chamber is by multiple criss-cross Vertical clapboard, which is divided into multiple filter chambers, each filter chamber, places a filter, and filter is the cylinder of both ends open, cylinder Body ring wall is made of filtrate, and inlet plenum is equipped with the first connecting tube corresponding with filter chamber quantity, one end of the first connecting tube with Filter upper open end in corresponding filter chamber is tightly connected, and the first connecting tube other end is connected to the inner cavity of inlet plenum, and first One end of the opposite connection filter of connecting tube is equipped with the first solenoid valve, and the lower open end of filter is connected to dust collection chamber, air inlet The entrance of room is connected by the outlet of dedusting pipeline and negative-pressure air fan, is equipped with second connecting tube in each filter chamber, One end of second connecting tube is connected to filter chamber inner cavity, and the other end of the second connecting tube and one end of blowback lines connect, blowback The other end of pipeline is connected to dedusting pipeline, is equipped with second solenoid valve in the second connecting tube, each filter chamber has one Filter chamber is communicated with the atmosphere for a exhaust outlet, the exhaust outlet.

Preferably, the low failure ferrosilicon casting flue gas processing device further includes controller, and the controller includes timing Device, processor, the first solenoid valve are normally open, and the first solenoid valve, second solenoid valve connect with processor, timer every One fixed time period triggers a shutdown signal to processor, and processor gradually controls the first solenoid valve according to this shutdown signal It closes, and is delayed and automatically opens, the chain mutual exclusion of state of the second solenoid valve of the first solenoid valve filter chamber connection corresponding to its.

Preferably, the controller further includes baroceptor, and an air pressure sensing is equipped in each filter chamber Device is sent to processor for detecting the gas pressure in filter chamber, and by real-time gas pressure, prestores gas in processor Pressure change threshold value, the real-time gas pressure become in a regular time section, the changing value of gas pressure greater than gas pressure Change threshold value, processor controls the first solenoid valve of the corresponding filter chamber connection of the baroceptor, second solenoid valve is closed.

Preferably, the side wall of the exhaust fume collecting hood and roof are made of inner and outer wall, and inside outer wall surface is densely covered with rake One end of dentation cylinder, cylinder is fixedly connected with outer wall, the other end of cylinder with inside outer wall surface is angled freely prolongs It stretches, the inner wall is that the refractory material being cast between the irpiciform cylinder of inside outer wall surface is constituted.

Preferably, the filtrate is glass filter cloth.

The utility model has the beneficial effects that: first, high-temperature flue gas is preliminary into collection smoke box after exhaust fume collecting hood is collected Sedimentation, enters back into cooler, and the first partition being arranged in cooler, second partition efficiently separate out particulate matter, avoid filtering Device filtrate scratches, and the negative tempperature coefficient thermistor installed in the linkage section of right side can be according to the temperature for the high-temperature flue gas for entering cooler It spends to control the conveying capacity of negative-pressure air fan, and then controls the temperature for entering the high-temperature flue gas of deduster, filter leaching material is avoided to burn Damage；Second, each filter is mounted in independent filter chamber, can be by closing corresponding first electromagnetism after filter scratches Valve, second solenoid valve are not shut down replacement, production disruption caused by avoiding because of maintenance of equipment.

Detailed description of the invention

Fig. 1 is the main view that the low failure ferrosilicon is poured flue gas processing device.

Fig. 2 is that low failure ferrosilicon described in Fig. 1 is poured flue gas processing device along the cross-sectional view in the direction A-A.

The electric operation control circuit figure of the position Fig. 3 negative-pressure air fan.

Fig. 4 is the partial sectional view in deduster longitudinal section direction.

Fig. 5 is the partial sectional view of the deduster cross-sectional direction.

Fig. 6 is the functional block diagram of controller.

In figure: exhaust fume collecting hood 10, ventilation hole 11, inner wall 12, outer wall 13, cylinder 14, collection smoke box 20, cooler 30, linkage section 31, cooling section 32, first partition 321, second partition 322, switch 33, thermistor 34, negative-pressure air fan 40, deduster 50, remove Dirt case 51, first level partition 511, the second horizontal baffle 512, inlet plenum 513, filter chamber 514, vertical clapboard 5141, filtering Chamber 5142, filter 5143, dust collection chamber 515, the first connecting tube 52, the second connecting tube 53, the first solenoid valve 54, second solenoid valve 55, dedusting pipeline 56, blowback lines 57, casting cover half component 60, pouring head 61, controller 70, processor 71, timer 72, Baroceptor 73, AC power source 80.

Specific embodiment

It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment Attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is some embodiments of the utility model, for this For the those of ordinary skill of field, without creative efforts, it can also be obtained according to these attached drawings others Attached drawing.

Referring to Fig. 1 to Fig. 5, the utility model embodiment provides a kind of less trouble ferrosilicon casting flue gas processing device, Including exhaust fume collecting hood 10, collection smoke box 20, cooler 30, negative-pressure air fan 40, deduster 50, exhaust fume collecting hood 10, collection smoke box 20 are placed in ferrosilicon In pouring hall, cooler 30, negative-pressure air fan 40, deduster 50 are placed in outside ferrosilicon pouring hall, and exhaust fume collecting hood 10 is at door shape, collection Petticoat pipe 10 covers the surface for being buckled in casting 60 pouring head 61 of cover half component, and collection smoke box 20 installs 10 top of exhaust fume collecting hood, exhaust fume collecting hood 10 Roof is equipped with ventilation hole 11, and the ventilation hole 11 of 10 roof of exhaust fume collecting hood is connect with the entrance of collection smoke box 20, and cooler 30 is one two The cabinet of end opening, the left and right ends of cabinet are linkage section 31, are cooling section 32 in the middle part of cabinet, and the internal diameter of cooling section 32, which is greater than, to be connected The internal diameter of section 31 is connect, is provided with multiple first partitions 321 in cooling section 32 from left to right, in first partition 321 and cooling section 32 The roof of chamber, front side wall, rear wall contact, first partition 321 are not contacted with the bottom wall of 32 inner cavity of cooling section, cooling section 32 it is interior from There are also multiple second partitions 322 for left-to-right setting, and second partition 322 and bottom wall, front side wall, the rear wall of 32 inner cavity of cooling section connect Touching, second partition 322 are not contacted with the roof of 32 inner cavity of cooling section, and first partition 321, second partition 322 are staggered, with logical Cross the exhaust gases passes that first partition 321, second partition 322 form tortuous trend in cooling section 32, it is the roof of cooling section 32, preceding Side wall, rear wall, bottom wall are sandwich, and first partition 321, second partition 322 are also sandwich, the top of cooling section 32 Wall, front side wall, rear wall, bottom wall and first partition 321, second partition 322 are homogeneous intercommunicated, the roof of cooling section 32, preceding Circulation has cooling medium in side wall, rear wall, bottom wall and first partition 321, second partition 322, to cool down in cooling section 32 High-temperature flue gas, the port of left side linkage section 31 connect with the entrance of negative-pressure air fan 40, the port of right side linkage section 31 and collection cigarette The outlet of case 20 connects, and negative-pressure air fan 40 is connect with AC power source 80, and cooler 30 also has and negative-pressure air fan 40 and alternating current Source 80 is connected in series and carries out the device of rotational speed regulation by the size of change resistance value, and the device of rotational speed regulation includes and bears Pressure fan 40, the concatenated switch 33 of AC power source 80, thermistor 34, thermistor 34 are mounted on the inner cavity of right side linkage section 31 In, thermistor 34 is negative tempperature coefficient thermistor 34, and deduster 50 includes dust cleaning case 51, the first connecting tube 52, second company Adapter tube 53, the first solenoid valve 54, second solenoid valve 55, dedusting pipeline 56, blowback lines 57,51 inner cavity of dust cleaning case from top to bottom by First level partition 511, the second horizontal baffle 512 are divided into inlet plenum 513, filter chamber 514, dust collection chamber 515, filter chamber 514 Multiple filter chambers 5142 are divided by multiple criss-cross vertical clapboards 5141, a filtering is placed in each filter chamber 5142 Device 5143, filter 5143 are the cylinder of both ends open, and cylinder ring wall is made of filtrate, and inlet plenum 513 is equipped with and filter chamber On filter 5143 in corresponding first connecting tube 52 of 5142 quantity, one end of the first connecting tube 52 and corresponding filter chamber 5142 Open end is tightly connected, and 52 other end of the first connecting tube is connected to the inner cavity of inlet plenum 513, and the first connecting tube 52 connected relatively One end of filter 5143 is equipped with the first solenoid valve 54, and the lower open end of filter 5143 is connected to dust collection chamber 515, inlet plenum 513 entrance is connect by dedusting pipeline 56 with the outlet of negative-pressure air fan 40, and one the is equipped in each filter chamber 5142 One end of two connecting tubes 53, the second connecting tube 53 is connected to 5142 inner cavity of filter chamber, the other end of the second connecting tube 53 and blowback One end of pipeline 57 connects, and the other end of blowback lines 57 is connected to dedusting pipeline 56, and the is equipped in the second connecting tube 53 Two solenoid valves 55, each filter chamber 5142 have an exhaust outlet, which filter chamber 5142 is communicated with the atmosphere.

In the present embodiment, after high-temperature flue gas is from the linkage section 31 on 30 right side of cooler into cooling section 32,32 body of cooling section Product is greater than linkage section 31, and the volume of high-temperature flue gas becomes larger, and speed reduces, after high-temperature flue gas enters cooling section 32, due to first every The blocking of plate 321, second partition 322, S-shaped flow trace increase the distance that high-temperature flue gas flows in cooling section 32, also High-temperature flue gas and 32 contact area of cooling section are increased, cooling efficiency is improved.

In the present embodiment, after high-temperature flue gas encounters first partition 321 or second partition 322, turn 90 ° of flowings, high-temperature flue gas In particulate matter have little time to turn to due to inertia, and be deposited on the bottom wall of inner cavity of cooling section 32, avoid particulate matter and enter dedusting The filter 5143 of device 50 and scratch filtrate, cause the disorderly closedown of equipment.

Temperature into cooler 30 cannot be too high, otherwise, after high-temperature flue gas enters deduster 50 by cooler 30, by In temperature too it is high can scaling loss filter 5143 filtrate, the disorderly closedown of equipment is caused, in the present embodiment, on 30 right side of cooler Negative tempperature coefficient thermistor 34 is installed in linkage section 31, when enter cooler 30 it is excessively high when, negative tempperature coefficient thermistor 34 resistance value increases, and is reduced by the electric current of negative-pressure air fan 40,40 revolving speed of negative-pressure air fan is slack-off, and high-temperature flue gas is in cooler 30 Residence time increases, in this way, the high-temperature flue-gas flowed out from cooler 30 reduces, avoids the burning of 5143 filtrate of filter Damage.

Here filter 5143 can be the cloth bag of conventional bag filter 50.

In the present embodiment, the blowback of filter 5143 need not additionally configure individual gas source, but directly pass through anti-blowpipe The flue gas that negative-pressure air fan 40 is discharged is purged 5143 inner sidewall of filter by line 57.It can be appreciated that filter during blowback The dust of 5143 lateral walls can be purged the flue gas that negative-pressure air fan 40 is discharged by dedusting pipeline 56.

In the present embodiment, by closing corresponding first solenoid valve 54 of any filter chamber 5142, the filter chamber 5142 is opened Corresponding second solenoid valve 55, realizes the working condition of the filter chamber 5142 to the switching of blowback state.

The utility model has the beneficial effects that: first, high-temperature flue gas is after the collection of exhaust fume collecting hood 10, into collection smoke box 20 Preliminary sedimentation, enters back into cooler 30, and the first partition 321 that is arranged in cooler 30, second partition 322 efficiently separate out Grain object, avoids 5143 filtrate of filter from scratching, the negative tempperature coefficient thermistor 34 installed in right side linkage section 31 can according into Enter the temperature of the high-temperature flue gas of cooler 30 to control the conveying capacity of negative-pressure air fan 40, and then controls the high temperature for entering deduster 50 The temperature of flue gas avoids 5143 filtrate scaling loss of filter；Second, each filter 5143 is mounted on independent filter chamber 5142 It is interior, after filter 5143 scratches, replacement can not be shut down by corresponding first solenoid valve 54 of closing, second solenoid valve 55, Production disruption caused by avoiding because of maintenance of equipment.

Referring to fig. 4 to Fig. 6, further, low failure ferrosilicon casting flue gas processing device further includes controller 70, controller 70 Including timer 72, processor 71, the first solenoid valve 54 is normally open, the first solenoid valve 54, second solenoid valve 55 with place It manages device 71 to connect, timer 72 triggers a shutdown signal to processor 71,71 foundation of processor every a fixed time period This shutdown signal gradually controls the closing of the first solenoid valve 54, and is delayed and automatically opens, the first solenoid valve 54 filter chamber corresponding to its The chain mutual exclusion of state of the second solenoid valve 55 of 5142 connections.

It is mentioned here that " state for the second solenoid valve 55 that the first solenoid valve 54 filter chamber 5142 corresponding to its connects is chain Mutual exclusion " is explained as follows, and at the first solenoid valve 54 when opening state, second solenoid valve 55 is in close state, when the first electromagnetism At valve 54 when closed state, second solenoid valve 55 is in the open state, and this control mode can be achieved, the first solenoid valve 54 when being in close state, and processor 71 receives 54 closed state signal of the first solenoid valve, then controls second solenoid valve 55 It opens, in the open state, processor 71 receives 54 opening state signal of the first solenoid valve to the first solenoid valve 54, then controls Second solenoid valve 55 processed is closed, and the purpose designed in this way is, when some first solenoid valve 54 is in close state, with this The corresponding filter 5143 of first solenoid valve 54 is in blowback state, at this moment, second electricity corresponding with first solenoid valve 54 Magnet valve 55 is opened, and the flue gas after 40 coarse filtration of negative-pressure air fan realizes regeneration, certainly should to 5143 reverse blow of filter When filter 5143 is in running order, namely to the 5143 outside blowback of filter.

In the present embodiment, processor 71 gradually closes each first solenoid valve 54 according to the signal of timer 72, then Corresponding second solenoid valve 55 is opened, realizes that the corresponding filter 5143 of the first solenoid valve 54 periodically fixes one The blowback of period, in this way, fraction filter 5143 is in blowback state when most of filter 5143 is in running order, It ensure that deduster 50 does not continuously shut down work, solve existing 50 working condition of deduster and carried out respectively with blowback state, Caused by production cycle property interrupt deficiency.

In a specific embodiment, intelligent switch can be used to replace processor 71 and timer 72, each First solenoid valve 54, second solenoid valve 55 are connect by an intelligent switch with power supply, and intelligent switch plug-in can To open or close the first solenoid valve 54, second solenoid valve 55 in some period according to preset program.

Referring to fig. 4 to Fig. 6, further, controller 70 further includes baroceptor 73, is pacified in each filter chamber 5142 Equipped with a baroceptor 73, place is sent to for detecting the gas pressure in filter chamber 5142, and by real-time gas pressure Device 71 is managed, prestores gas pressure change threshold value in processor 71, the real-time gas pressure is in a regular time section, gas The changing value of pressure is greater than gas pressure change threshold value, and processor 71 controls the corresponding filter chamber 5142 of baroceptor 73 and connects The first solenoid valve 54 for connecing, second solenoid valve 55 are closed.

It after filter 5143 is scratched, is difficult to find, at this moment, when deduster 50 works, ash-laden gas will be discharged into greatly more Gas and pollute, in the present embodiment, in filter chamber 5142 install baroceptor 73, deduster 50 work when, work as filtering Pressure in chamber 5142 is in stable state in a fixed time period gas pressure, illustrates that filter 5143 is not scratched, when Pressure in filter chamber 5142 plays pendulum in a fixed time period gas pressure, illustrates that filter 5143 is drawn Broken, processor 71 controls the first solenoid valve 54, second solenoid valve 55 is closed, and corresponding filter chamber 5142 is isolated, and carries out not Shutdown maintenance avoids smoke contamination caused by 50 failure of deduster.

In this case, processor 71 is to the corresponding highest priority of baroceptor 73, and processor 71 is according to timer 72 signal is to the first solenoid valve 54, the control failure of second solenoid valve 55.

Referring to Fig. 1 and Fig. 2, further, the side wall of exhaust fume collecting hood 10 and roof are made of inner wall 12 and outer wall 13, outer wall 13 Inner surface is densely covered with irpiciform cylinder 14, and one end of cylinder 14 is fixedly connected with outer wall 13, the other end and outer wall of cylinder 14 13 inner surfaces are angled freely to be extended, inner wall 12 be cast in it is resistance between 13 inner surface irpiciform cylinder 14 of outer wall Fiery material is constituted.

In the present embodiment, cylinder 14 is first welded in 13 inside of outer wall of smoke collecting cover, then fills between cylinder 14 again resistance to Fiery material forms inner wall 12, this way it is ensured that the bond strength between inner wall 12 and outer wall 13, cylinder 14 and inner wall 12 were formed Complex can resist washing away for high-temperature flue gas.

Further, filtrate is glass filter cloth.

When dust-contained airflow flows through glass filter cloth, the particle bigger than glass filter cloth gap, due to gravity, inertia Effect sedimentation is deposited in fiber；The particle smaller than glass filter cloth gap, collides with glass filter cloth fiber, Filter bag surface, the i.e. attached effect of hook, smaller particle, because intermolecular Brownian movement stays in glass filter cloth are attached to by fiber hook Surface and gap in；Most tiny particle is discharged into atmosphere after flowing through glass filter cloth with air-flow.

Glass filter cloth is selected to make not only to the gas efficiency of powder dust particle of the purification containing micron or systems Higher, gas cleaning efficiency is up to 99%, and dusty gas concentration change in sizable range to 50 efficiency of deduster and The problems such as drag effects are little, without Treatment of Sludge and corrode.

Module or unit in the utility model embodiment device can be merged according to actual needs, divide and be deleted Subtract.

Above disclosures are merely preferred embodiments of the utility model, the utility model cannot be limited with this certainly Interest field, those skilled in the art can understand all or part of the processes for realizing the above embodiment, and according to this reality The equivalent variations made by novel claim, still falls within the scope of the utility model.

Claims (5)

1. a kind of less trouble ferrosilicon is poured flue gas processing device, it is characterised in that: including exhaust fume collecting hood, collection smoke box, cooler, bear Pressure fan, deduster, the exhaust fume collecting hood, collection smoke box are placed in ferrosilicon pouring hall, the cooler, negative-pressure air fan, deduster It is placed in outside ferrosilicon pouring hall, for the exhaust fume collecting hood at door shape, the exhaust fume collecting hood cover is being buckled in casting cover half component pouring head just Top, the collection smoke box installation exhaust fume collecting hood top, exhaust fume collecting hood roof are equipped with ventilation hole, the ventilation hole and collection smoke box of exhaust fume collecting hood roof Entrance connection, the cooler is the cabinet of a both ends open, and it is cold in the middle part of cabinet that the left and right ends of cabinet, which are linkage section, But section, the internal diameter of cooling section are greater than the internal diameter of linkage section, are provided with multiple first partitions in cooling section from left to right, and described first Partition is contacted with the roof of cooling section inner cavity, front side wall, rear wall, and first partition is not contacted with the bottom wall of cooling section inner cavity, cold But multiple second partitions, bottom wall, front side wall, the rear side of the second partition and cooling section inner cavity are additionally provided in section from left to right Wall contact, second partition are not contacted with the roof of cooling section inner cavity, and the first partition, second partition are staggered, to pass through First partition, second partition form the exhaust gases passes of tortuous trend in cooling section, the roof of cooling section, front side wall, rear wall, Bottom wall is sandwich, and first partition, second partition are also sandwich, the roof of cooling section, front side wall, rear wall, bottom Wall and first partition, second partition are homogeneously intercommunicated, the roof of cooling section, front side wall, rear wall, bottom wall and first every Circulation has cooling medium in plate, second partition, to cool down the high-temperature flue gas in cooling section, the port of left side linkage section and negative pressure wind The entrance of machine connects, and the port of right side linkage section is connect with the outlet of collection smoke box, and negative-pressure air fan is connect with AC power source, described cold But device, which also has, is connected in series with negative-pressure air fan and AC power source and carries out rotational speed regulation by the size of change resistance value Device, the device of the rotational speed regulation include and negative-pressure air fan, the concatenated switch of AC power source, thermistor, the temperature-sensitive electricity Resistance be mounted on right side linkage section inner cavity in, the thermistor be negative tempperature coefficient thermistor, deduster include dust cleaning case, First connecting tube, the second connecting tube, the first solenoid valve, second solenoid valve, dedusting pipeline, blowback lines, the dedusting box cavity Inlet plenum, filter chamber, dust collection chamber are divided by first level partition, the second horizontal baffle from top to bottom, filter chamber is by multiple vertical Horizontal staggered vertical clapboard, which is divided into multiple filter chambers, each filter chamber, places a filter, and filter is both ends open Cylinder, cylinder ring wall is made of filtrate, and inlet plenum is equipped with the first connecting tube corresponding with filter chamber quantity, the first connecting tube One end and corresponding filter chamber in filter upper open end be tightly connected, the inner cavity of the first connecting tube other end and inlet plenum connects Logical, one end of the opposite connection filter of the first connecting tube is equipped with the first solenoid valve, and the lower open end of filter and dust collection chamber connect Logical, the entrance of inlet plenum is connected by the outlet of dedusting pipeline and negative-pressure air fan, is equipped with one second in each filter chamber One end of connecting tube, the second connecting tube is connected to filter chamber inner cavity, and the other end of the second connecting tube and one end of blowback lines connect It connects, the other end of blowback lines is connected to dedusting pipeline, is equipped with second solenoid valve in the second connecting tube, each filter chamber With an exhaust outlet, which filter chamber is communicated with the atmosphere.

2. less trouble ferrosilicon as described in claim 1 is poured flue gas processing device, it is characterised in that: the less trouble silicon It further includes controller that iron, which is poured flue gas processing device, and the controller includes timer, processor, and the first solenoid valve is normally opened shape State, the first solenoid valve, second solenoid valve are connect with processor, and timer triggers a closing letter every a fixed time period Number give processor, processor according to this shutdown signal gradually control the first solenoid valve close, and be delayed automatically open, the first electromagnetism The chain mutual exclusion of state of the second solenoid valve of valve filter chamber connection corresponding to its.

3. less trouble ferrosilicon as claimed in claim 2 is poured flue gas processing device, it is characterised in that: the controller also wraps Baroceptor is included, a baroceptor is installed in each filter chamber, for detecting the gas pressure in filter chamber, And real-time gas pressure is sent to processor, gas pressure change threshold value is prestored in processor, which exists The changing value of one regular time section, gas pressure is greater than gas pressure change threshold value, and processor controls the baroceptor First solenoid valve of corresponding filter chamber connection, second solenoid valve are closed.

4. less trouble ferrosilicon as described in claim 1 is poured flue gas processing device, it is characterised in that: the side of the exhaust fume collecting hood Wall and roof are made of inner and outer wall, and inside outer wall surface is densely covered with irpiciform cylinder, and one end and the outer wall of cylinder are fixed Connection, the other end of cylinder with inside outer wall surface is angled freely extends, the inner wall is is cast in inside outer wall table Refractory material between the irpiciform cylinder of face is constituted.

5. less trouble ferrosilicon as described in claim 1 is poured flue gas processing device, it is characterised in that: the filtrate is glass Fiber filter cloth.