CN214809290U - Negative pressure pulse bag dust collector device of large ferrosilicon furnace - Google Patents

Abstract

The utility model discloses a negative pressure pulse bag dust collector device of a large ferrosilicon furnace, which comprises a support frame and a dust collection box body, wherein the bottom of the dust collection box body is connected with the support frame, one side surface of the bottom of the dust collection box body is connected with an air inlet, the other side surface of the top of the dust collection box body is connected with an air outlet, and a pulse dust collection assembly is also arranged in the dust collection box body; the pulse dust removal assembly comprises an upper partition plate, a lower partition plate, an electromagnetic pulse valve, an injection pipe, a filter bag frame and a cloth bag. This large-scale ferrosilicon stove negative pressure pulse bag dust remover device, the air current that contains the dust that the air inlet flowed in gets into the dust removal box, and the air current filters through the sack, and gas after the purification is arranged to the gas outlet from the cavity through the filter screen, accomplishes the dust removal, and during the clearance, the electromagnetic pulse valve starts, and spout inclination is downward sloping 45, lets spun pulse air current clear up the dust that will adsorb on the sack down through setting up of slope, accomplishes quick effectual clearance.

Description

Negative pressure pulse bag dust collector device of large ferrosilicon furnace

Technical Field

The utility model relates to a negative pressure pulse bag dust remover technical field specifically is large-scale ferrosilicon stove negative pressure pulse bag dust remover device.

Background

The development of the bag type dust collector is based on the improvement of the current environmental protection requirement, meanwhile, the replacement of the material of the filter material and the improvement of the performance and the service life of the matched electromechanical product enable the bag type dust collector to be more and more widely applied, and the bag type dust collector occupies about 50% of the dust collector in developed countries such as America, Japan, France, Korea and the like. In recent years, the development of bag type dust collectors in China is rapid, and especially large or ultra-large bag type dust collectors are widely applied to the fields of electric power, metallurgy, mines, building materials and the like. The bag type dust collector has small dust discharge amount, and the concentration is lower than 50 mg per cubic meter under the standard condition. The two-bag type dust collector has the advantages that the performance and the service life of the filter material and the accessory kit are improved, the maintenance period of the dust collector body is prolonged from the past half year to two to three years or even five years, and the filter bag and the diaphragm of the pulse valve are replaced at the maintenance position every two to three years. Compared with an electric dust remover, the three-bag type dust remover has less primary investment under the same performance condition. The four-bag type dust collector has the advantages of small maintenance amount, low requirement on personnel quality and relatively simple personnel structure in the aspect of maintenance. Based on the advantages, the large bag type dust collector is widely applied to industries such as electric power, metallurgy, building materials, chemical industry, mines and the like in China.

When the equipment works normally, dust-containing smoke enters from the air inlet through the air inlet valve of each chamber, and dust particles in the smoke fall into the bottom of the dust hopper through the processes of collision, inertial separation, natural settling and the like; the treated flue gas enters a box body (from bottom to top) dust filtering chamber from an ash hopper, dust particles are blocked outside the filter bag after being filtered by the filter bag, and the purified flue gas enters a gas purifying chamber at the upper part of the box body from the inside of the filter bag, then enters an air outlet air collecting pipeline through an air outlet valve of each chamber from a valve hole on a partition plate and is exhausted into the atmosphere. Along with the continuous proceeding of the dust removal process, the dust deposition on the outer side of the filter bag is gradually increased, and the dust layer is thickened, so that the running resistance of the dust remover is gradually increased, and when the running resistance of the device reaches 1500Pa, the filter bag is required to be cleaned.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a large-scale ferrosilicon stove negative pressure pulse bag dust remover device has and lets the spun pulse air current clear up the dust that will adsorb on the sack downwards through setting up of slope, accomplishes the advantage of quick effectual clearance, has solved the problem among the prior art.

In order to achieve the above object, the utility model provides a following technical scheme: the negative pressure pulse bag dust collector device of the large ferrosilicon furnace comprises a support frame and a dust collection box body, wherein the bottom of the dust collection box body is connected with the support frame, one side surface of the bottom of the dust collection box body is connected with an air inlet, the other side surface of the top of the dust collection box body is connected with an air outlet, and a pulse dust collection assembly is further arranged in the dust collection box body;

the pulse dust removal assembly comprises an upper partition plate, a lower partition plate, an electromagnetic pulse valve, an injection pipe, a filter bag frame and a cloth bag; the upper baffle plate and the lower baffle plate are fixed in the dust removal box body on the upper side and the lower side of the air outlet, the interior of the dust removal box body is divided into three cavities, namely an upper cavity, a middle cavity and a lower cavity, the middle cavity is communicated with the air outlet, and the lower cavity is communicated with the air inlet;

the lower partition plate is provided with more than one group of through holes, one end of the filter bag frame penetrates through the through holes to extend into the lower cavity, and a cloth bag is sleeved outside the filter bag frame;

the inside of going up the baffle is the cavity to the injection pipe that the electromagnetic pulse valve is connected penetrates in the cavity of going up the baffle, and the cavity of going up the baffle still is connected with the jetting branch pipe, and the one end and the injection pipe intercommunication of jetting branch pipe, the other end of jetting branch pipe penetrate in the filter bag frame, and the spout that jetting branch pipe radially connects is towards the sack.

Preferably, the nozzles of the blowing branch pipes are obliquely arranged in the filter bag frame, and the inclination angle is 45 degrees downward.

Preferably, the upper partition plate and the lower partition plate are arranged in parallel, and the thickness of the upper partition plate is greater than that of the lower partition plate.

Preferably, a filter screen sleeved outside the blowing branch pipe is fixed on the caliber of the top of the filter bag frame.

Preferably, the length of the cloth bag is smaller than that of the filter bag frame, and the connection part of the cloth bag and the filter bag frame is fixed through sewing.

Compared with the prior art, the beneficial effects of the utility model are as follows:

this large-scale ferrosilicon stove negative pressure pulse bag dust remover device, the air current that contains the dust that the air inlet flowed in gets into the dust removal box, and the air current filters through the sack, and gas after the purification is arranged to the gas outlet from the cavity through the filter screen, accomplishes the dust removal, and during the clearance, the electromagnetic pulse valve starts, and spout inclination is downward sloping 45, lets spun pulse air current clear up the dust that will adsorb on the sack down through setting up of slope, accomplishes quick effectual clearance.

Drawings

FIG. 1 is an overall structure diagram of the present invention;

FIG. 2 is a structural diagram of the pulse dust-removing assembly of the present invention;

FIG. 3 is a partial structure view of the pulse dust-removing assembly of the present invention;

figure 4 is the connection diagram of the blowing branch pipe and the cloth bag of the utility model.

In the figure: 1. a support frame; 2. a dust removal box body; 21. an air inlet; 22. an air outlet; 3. a pulse dust removal assembly; 31. an upper partition plate; 311. a blowing branch pipe; 32. a lower partition plate; 321. a through hole; 33. an electromagnetic pulse valve; 34. a blowing pipe; 35. a filter bag frame; 36. a cloth bag.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, the negative pressure pulse bag dust collector device for the large ferrosilicon furnace comprises a support frame 1 and a dust collection box body 2, wherein the bottom of the dust collection box body 2 is connected with the support frame 1, one side surface of the bottom of the dust collection box body 2 is connected with an air inlet 21, air containing dust flows into the dust collection box body 2 through the air inlet 21, the other side surface of the top of the dust collection box body 2 is connected with an air outlet 22, the purified air is discharged through the air outlet 22, and a pulse dust collection assembly 3 is further installed inside the dust collection box body 2.

Referring to fig. 2-4, the pulse dust-removing assembly 3 includes an upper partition plate 31, a lower partition plate 32, an electromagnetic pulse valve 33, an injection tube 34, a filter bag frame 35 and a cloth bag 36; the upper partition plate 31 and the lower partition plate 32 are fixed in the dust removing box body 2 on the upper side and the lower side of the air outlet 22, the upper partition plate 31 and the lower partition plate 32 are arranged in parallel, the thickness of the upper partition plate 31 is larger than that of the lower partition plate 32, the distance between the upper partition plate 31 and the lower partition plate 32 is larger than the diameter of the air outlet 22, enough space is provided for air to flow into the air outlet 22, the interior of the dust removing box body 2 is divided into three cavities, namely an upper cavity, a middle cavity and a lower cavity, the middle cavity is communicated with the air outlet 22, the lower cavity is communicated with the air inlet 21, and air flow can be discharged only through the cloth bag 36.

The lower partition plate 32 is provided with a group of through holes 321, one end of the filter bag frame 35 penetrates through the through holes 321 to extend into the lower cavity, the outer part of the filter bag frame 35 is sleeved with the cloth bag 36, the length of the cloth bag 36 is smaller than that of the filter bag frame 35, when the cloth bag 36 is sleeved outside the filter bag frame 35, the top end of the cloth bag 36 can be just propped against the lower partition plate 32, the joint of the cloth bag 36 and the filter bag frame 35 is fixed through sewing, the cloth bag 36 and the filter bag frame 35 are fixed together through sewing, and the disassembly is simple.

The interior of the upper partition plate 31 is a cavity, an injection tube 34 connected with the electromagnetic pulse valve 33 penetrates into the cavity of the upper partition plate 31, the cavity of the upper partition plate 31 is also connected with an injection branch tube 311, one end of the injection branch tube 311 is communicated with the injection tube 34, the airflow of the injection tube 34 flows into the injection branch tube 311 after the electromagnetic pulse valve 33 is opened, the other end of the injection branch tube 311 penetrates into the filter bag frame 35, a filter screen sleeved outside the injection branch tube 311 is fixed on the caliber of the top of the filter bag frame 35, and the filter screen is arranged to allow the gas filtered by the cloth bag 36 to flow into the middle cavity through the filter screen, is discharged from the air outlet 22, the airflow of the air outlet 22 is prevented from flowing backwards, dust flows into the cloth bag 36, the radial nozzle of the blowing branch pipe 311 is towards the cloth bag 36, the nozzle of the blowing branch pipe 311 is arranged in the filter bag frame 35 in an inclined way, and the inclination angle is 45 degrees inclined downwards, and the sprayed pulse airflow downwards cleans the dust adsorbed on the cloth bag 36 through the inclined arrangement.

The working principle is as follows: the air current that contains the dust that the air inlet 21 flows into in getting rid of the dust box 2, and the air current filters through sack 36, and the gas after the purification is discharged to gas outlet 22 from the cavity through the filter screen, accomplishes the dust removal, and when clearing up, solenoid pulse valve 33 starts, and the pulse air current that produces spouts from the sack 36 inside outwards through the spout, will adsorb the dust on the surface and realize clearing up under high-pressure air current.

In summary, the following steps: according to the large ferrosilicon furnace negative pressure pulse bag dust collector device, the joint of the cloth bag 36 and the filter bag frame 35 is fixed by sewing, the cloth bag 36 and the filter bag frame 35 are fixed together by sewing, and the disassembly is simple; the air current that contains the dust that air inlet 21 flowed into gets into dust removal box 2 in, the air current filters through sack 36, and gas after the purification is discharged to gas outlet 22 from the middle chamber through the filter screen, accomplishes the dust removal, and during the clearance, electromagnetic pulse valve 33 starts, and spout inclination is 45 for the downward sloping, lets spun pulse air current clear up the dust that will adsorb on sack 36 downwards through the setting of slope, accomplishes quick effectual clearance.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. Large-scale ferrosilicon stove negative pressure pulse bag dust collector device, including support frame (1) and dust removal box (2), its characterized in that: the bottom of the dust removal box body (2) is connected with the support frame (1), one side surface of the bottom of the dust removal box body (2) is connected with the air inlet (21), the other side surface of the top of the dust removal box body (2) is connected with the air outlet (22), and the pulse dust removal assembly (3) is further mounted inside the dust removal box body (2);

the pulse dust removal assembly (3) comprises an upper partition plate (31), a lower partition plate (32), an electromagnetic pulse valve (33), a blowing pipe (34), a filter bag frame (35) and a cloth bag (36); the upper partition plate (31) and the lower partition plate (32) are fixed in the dust removal box body (2) on the upper side and the lower side of the air outlet (22), the interior of the dust removal box body (2) is divided into three cavities, namely an upper cavity, a middle cavity and a lower cavity, the middle cavity is communicated with the air outlet (22), and the lower cavity is communicated with the air inlet (21);

the lower partition plate (32) is provided with a group of through holes (321), one end of the filter bag frame (35) penetrates through the through holes (321) to extend into the lower cavity, and a cloth bag (36) is sleeved outside the filter bag frame (35);

the inside of the upper partition plate (31) is a cavity, an injection pipe (34) connected with the electromagnetic pulse valve (33) penetrates into the cavity of the upper partition plate (31), the cavity of the upper partition plate (31) is also connected with an injection branch pipe (311), one end of the injection branch pipe (311) is communicated with the injection pipe (34), the other end of the injection branch pipe (311) penetrates into the filter bag frame (35), and a nozzle radially connected with the injection branch pipe (311) faces towards the cloth bag (36).

2. The large-scale cupola negative pressure pulse bag dust collector device according to claim 1, wherein the blowing branch pipe (311) is positioned in the filter bag frame (35) and the nozzle is obliquely arranged, and the angle of inclination is 45 degrees downward.

3. The negative-pressure pulse bag dust collector device of the large-scale ferrosilicon furnace according to claim 1, wherein the upper partition plate (31) and the lower partition plate (32) are arranged in parallel with each other, and the thickness of the upper partition plate (31) is larger than that of the lower partition plate (32).

4. The negative-pressure pulse bag dust collector device of the large-scale ferrosilicon furnace according to claim 1, wherein a filter screen sleeved outside the injection branch pipe (311) is fixed on the top caliber of the filter bag frame (35).

5. The large-scale cupola negative pressure pulse bag dust collector device according to claim 1, wherein the length of the cloth bag (36) is less than that of the filter bag frame (35), and the connection between the cloth bag (36) and the filter bag frame (35) is fixed by sewing.

Images