CN216136861U

CN216136861U - Dust removal cleaning device for explosion-proof coal mill

Info

Publication number: CN216136861U
Application number: CN202120934578.XU
Authority: CN
Inventors: 赵爱军; 刘必祥; 周国玉; 樊宗军; 陈伟
Original assignee: Anhui Panjing Cement Co ltd
Current assignee: Anhui Panjing Cement Co ltd
Priority date: 2021-05-03
Filing date: 2021-05-03
Publication date: 2022-03-29
Anticipated expiration: 2031-05-03

Abstract

The utility model discloses an explosion-proof coal mill dust removal cleaning device which comprises a first air inlet pipe, an exhaust pipeline and a guide chute, wherein a fixed rod is fixed on the inner upper side of the first air inlet pipe, a temperature sensor is fixed on the lower side of the fixed rod, meanwhile, the right side of the first air inlet pipe is communicated with a temperature processing assembly, the right side of the temperature processing assembly is communicated with a second air inlet pipe, the second air inlet pipe is communicated with a dust removal cleaning box shell through an inlet pipeline, a first flange is fixed on the inlet pipeline, the first flange is connected with an explosion-proof assembly through bolt threads, the exhaust pipeline penetrates through the right side of the dust removal cleaning box shell, an exhaust fan is fixed in the exhaust fan, and a dust removal chamber and an exhaust chamber are formed in the dust removal cleaning box shell. The dust removal cleaning device for the explosion-proof coal mill is provided with an explosion-proof assembly, when an explosion accident occurs, an explosion-proof membrane in an explosion-proof valve can be damaged due to overpressure, the explosion-proof valve is automatically opened, and equipment is protected from being damaged.

Description

Dust removal cleaning device for explosion-proof coal mill

Technical Field

The utility model relates to the technical field of dust removal, in particular to a dust removal cleaning device for an explosion-proof coal mill.

Background

The coal dust is used as a main fuel for producing clinker in a cement plant, the coal dust is mainly supplied by a coal dust preparation system, and due to the flammable and explosive characteristics of the coal dust, dust collection equipment is not exceptional, so the dust collection equipment needs to consider the problem in the aspects of design, operation and accident emergency, and serious loss can be caused by slight flash loss in the operation process.

The existing coal mill dust removal cleaning device cannot monitor the temperature in entering dust removal equipment, dust-containing gas easily causes dust deposition if the temperature is too low, a filter bag is blocked, the temperature of the dust-containing gas is too high, explosion easily occurs, an explosion-proof valve is not arranged simultaneously, and when explosion occurs, the dust removal cleaning device cannot protect the equipment and cause unnecessary loss.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an explosion-proof coal mill dust removal cleaning device, which solves the problems that the existing coal mill dust removal cleaning device in the background art cannot monitor the temperature entering dust removal equipment, dust is easily accumulated due to the fact that the temperature of dust-containing gas is too low, a filter bag is blocked, the temperature of the dust-containing gas is too high, explosion is easily caused, and meanwhile, an explosion-proof valve is not arranged, so that the equipment cannot be protected when explosion occurs, and unnecessary loss is caused.

In order to achieve the purpose, the utility model provides the following technical scheme: an anti-explosion coal mill dust removal cleaning device comprises a first air inlet pipe, an exhaust pipeline and a material guide groove,

the device comprises a first air inlet pipe, a fixed rod is fixed on the inner upper side of the first air inlet pipe, a temperature sensor is fixed on the lower side of the fixed rod, the right side of the first air inlet pipe is communicated with a temperature processing assembly, the right side of the temperature processing assembly is communicated with a second air inlet pipe, the second air inlet pipe is communicated with a dedusting and cleaning box shell through an inlet pipeline, a first flange is fixed on the inlet pipeline, and the first flange is connected with an explosion-proof assembly through bolt threads;

exhaust duct, exhaust duct runs through on dust removal cleaning box shell right side, and is fixed with the exhaust fan in the exhaust fan, dust removal cleaning box shell has seted up clean room and exhaust chamber in, and the exhaust chamber is linked together through pulse dust pocket and clean room, and dust removal cleaning box shell front side is fixed with the control box simultaneously.

Preferably, the temperature processing subassembly is including intensification pipeline, electric heating wire, cooling pipe, cooling tube, water inlet and delivery port, it has electric heating wire to inlay in the intensification pipeline, the last winding of cooling pipe has the cooling tube, and cooling tube one end is linked together with the water inlet, and the cooling pipe other end is linked together with the delivery port simultaneously.

Preferably, the explosion-proof assembly comprises a second flange, an explosion-proof pipe and an explosion-proof valve, the explosion-proof pipe is fixed between the second flanges, and the explosion-proof valve is fixed in the explosion-proof pipe.

Preferably, the first flange and the second flange form a detachable mounting structure through bolts.

Preferably, a cooling device is embedded on the shell of the dust removal cleaning box.

Preferably, the guide chute is communicated with the lower side of the dust removal cleaning box shell, a vibrator is fixed on the outer wall of the guide chute, and a sealing cover is in threaded connection with the lower side of the guide chute.

Compared with the prior art, the utility model has the beneficial effects that: the dust removal cleaning device for the explosion-proof coal mill,

(1) the temperature processing component is arranged, when the temperature of the dust-containing gas is too low under the auxiliary action of the electric heating wire on the temperature rising pipeline, the temperature rising processing is carried out on the dust-containing gas, so that the dust-containing gas cannot be condensed due to too low temperature, deposit dust, block a filter bag and cause difficulty in ash removal, and when the temperature of the dust-containing gas is too high, the temperature lowering processing is carried out under the auxiliary action of the cooling pipe on the temperature lowering pipeline, so that the dust-containing gas cannot be ignited to explode finally due to too high temperature;

(2) be provided with explosion-proof assembly, when the explosion accident, explosion-proof diaphragm in the explosion-proof valve can be damaged because of the superpressure, and explosion-proof valve is automatic to be opened, and protection equipment is not destroyed, and the clean case shell of removing dust simultaneously is explosion-proof casing, and under explosion-proof assembly and the combined action of explosion-proof casing, can make the clean case shell of removing dust can bear the explosive force after and indeformable, improve the life of dust remover, practice thrift manufacturing cost.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a rear view of the present invention;

FIG. 3 is an enlarged view of the structure at A in FIG. 1 according to the present invention.

In the figure: 1. the device comprises a first air inlet pipe, 2, a fixing rod, 3, a temperature sensor, 4, a temperature processing assembly, 401, a heating pipeline, 402, an electric heating wire, 403, a cooling pipeline, 404, a cooling pipe, 405, a water inlet, 406, a water outlet, 5, a second air inlet pipe, 6, an inlet pipeline, 7, a first flange, 8, a bolt, 9, an explosion-proof assembly, 901, a second flange, 902, an explosion-proof pipe, 903, an explosion-proof valve, 10, an exhaust pipeline, 11, an exhaust fan, 12, a dust removal cleaning box shell, 13, a dust removal chamber, 14, an exhaust chamber, 15, a pulse dust removal bag, 16, cooling equipment, 17, a guide groove, 18, a vibrator, 19, a sealing cover, 20 and a control box.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: an anti-explosion coal mill dust removal cleaning device is disclosed, as shown in fig. 1, fig. 2 and fig. 3, a fixed rod 2 is fixed on the upper side inside a first air inlet pipe 1, a temperature sensor 3 is fixed on the lower side of the fixed rod 2, meanwhile, the right side of the first air inlet pipe 1 is communicated with a temperature processing assembly 4, the temperature processing assembly 4 comprises a heating pipe 401, an electric heating wire 402, a cooling pipe 403, a cooling pipe 404, a water inlet 405 and a water outlet 406, the electric heating wire 402 is embedded in the heating pipe 401, the cooling pipe 404 is wound on the cooling pipe 403, one end of the cooling pipe 404 is communicated with the water inlet 405, the other end of the cooling pipe 403 is communicated with the water outlet 406, the dust-containing gas can be heated under the auxiliary action of the electric heating wire 402 on the heating pipe 401, so that the dust-containing gas can be prevented from dewing due to low temperature, dust can be accumulated, the filter bag can be blocked, and dust removal is difficult, if the temperature of the dust-containing gas is too high, the dust-containing gas enters the cooling pipeline 403, the dust-containing gas can be cooled under the auxiliary action of the cooling pipe 404, the cooling equipment 16 is embedded on the housing 12 of the dust removal cleaning box, the cooling equipment 16 can cool the dust-containing gas in the dust removal chamber 13 again, the problem that the temperature in the dust removal chamber 13 is too high and the dust-containing gas is ignited to cause explosion risk is avoided, so that the cost can be saved by more than 300 ten thousand yuan each year, the right side of the temperature processing assembly 4 is communicated with the second air inlet pipe 5, the second air inlet pipe 5 is communicated with the housing 12 of the dust removal cleaning box through the inlet pipeline 6, the first flange 7 is fixed on the inlet pipeline 6, the explosion-proof assembly 9 is connected with the explosion-proof assembly 9 through the bolts 8 by screw threads, the explosion-proof assembly 9 comprises a second flange 901, an explosion-proof pipe 902 and an explosion-proof valve 903, the explosion-proof pipe 902 is fixed between the second flanges 901, and the explosion-proof valve 903 is fixed in the explosion-proof pipe 902, first flange 7 passes through bolt 8 and second flange 901 constitution dismantles mounting structure, when exploding in dust removal cleaning box shell 12, the explosion-proof diaphragm on explosion-proof valve 903 can be damaged because of the superpressure, explosion-proof valve 903 can be opened automatically to protect dust removal cleaning box shell 12, dust removal cleaning box shell 12 adopts explosion-proof casing, can make dust removal cleaning box shell 12 can not warp after bearing the explosive force under the auxiliary action of dust removal cleaning box shell 12 and explosion-proof assembly 9, practice thrift manufacturing cost.

As shown in figures 1 and 2, an exhaust pipeline 10 penetrates through the right side of a dedusting and cleaning box shell 12, an exhaust fan 11 is fixed in the exhaust fan 11, a dust chamber 13 and an exhaust chamber 14 are arranged in the dedusting and cleaning box shell 12, the exhaust chamber 14 is communicated with the dust chamber 13 through a pulse dust bag 15, a control box 20 is fixed at the front side of the dedusting and cleaning box shell 12, a cooling device 16 is embedded on the dedusting and cleaning box shell 12, a guide chute 17 is communicated with the lower side of the dedusting and cleaning box shell 12, a vibrator 18 is fixed on the outer wall of the guide chute 17, a sealing cover 19 is connected with the lower side of the guide chute 17 through threads, the diameter of an inlet pipeline of the coal mill is increased, a larger ventilation volume is ensured when the mill is stopped, the ventilation of the coal mill is smooth, the concentration of coal powder in the mill when the mill is stopped is reduced, and meanwhile, the device adopts a dedusting pipeline design with large diameter and low camber, the internal resistance of the shell 12 of the dust removal cleaning box is reduced to about 1200-1500 pa from 2000pa, the filtering wind speed is reduced to 0.77m/min from 0.93m/min, the energy consumption of the dust remover is effectively reduced, and dust collected in the guide chute 17 can be rapidly treated under the auxiliary action of the vibrator 18 on the outer wall of the guide chute 17, so that the operation is simple and convenient.

The working principle is as follows: when the dust removing and cleaning device for the explosion-proof coal mill is used, an external power supply is switched on, dust-containing gas enters a first gas inlet pipe 1, temperature measurement is carried out under the auxiliary action of a temperature sensor 3 on the lower side of a fixed rod 2, when the temperature of the dust-containing gas is too low, a cooling pipeline 403 is sealed, the dust-containing gas enters a heating pipeline 401, heating treatment is carried out under the auxiliary action of an electric heating wire 402 on the heating pipeline 401, the heated dust-containing gas enters a dust removing chamber 13 in a dust removing and cleaning box shell 12 through a second gas inlet pipe 5 and an inlet pipeline 6, if the temperature of the dust-containing gas is too high, the heating pipeline 401 is sealed, the heating pipeline 401 enters the cooling pipeline 403, a cooling medium enters a cooling pipe 404 through a water inlet 405 to be subjected to auxiliary cooling, the used medium is discharged through a water outlet 406, the auxiliary cooled dust-containing gas also enters the dust removing chamber 13 in the dust removing and cleaning box shell 12 through the second gas inlet pipe 5 and the inlet pipeline 6, the dust is removed under the auxiliary action of the pulse dust removing bag 15, the gas after dust removal enters the exhaust chamber 14, discharged under the auxiliary action of the exhaust fan 11 in the exhaust pipeline 10, the falling dust is accumulated on the material guide chute 17, the sealing cover 19 is manually rotated, the sealing cover 19 is separated from the material guide chute 17, the dust can be accelerated to be discharged out of the material guide groove 17 under the auxiliary action of the vibrator 18, the temperature reduction equipment 16 can carry out temperature reduction treatment on the interior of the dedusting and cleaning box shell 12 again, if an explosion accident occurs in the dust-removing cleaning box casing 12, the explosion-proof diaphragm on the explosion-proof valve 903 in the explosion-proof pipe 902 between the second flanges 901 is damaged due to overpressure, the explosion-proof valve is automatically opened, thus, the equipment can be protected, the bolt 8 is manually rotated, the first flange 7 is separated from the second flange 901, this allows the explosion-proof assembly 9 to be replaced, with simple and easy operation, and what is not described in detail in this description is known to the person skilled in the art.

The terms "central," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for simplicity of description only and are not intended to indicate or imply that the referenced devices or elements must be in a particular orientation, constructed and operative in a particular orientation, and are not to be considered limiting of the claimed invention.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the utility model can be made, and equivalents and modifications of some features of the utility model can be made without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides an explosion-proof type coal grinds dust removal cleaning device, includes first intake pipe (1), exhaust duct (10) and baffle box (17), its characterized in that:

the dust removal cleaning box comprises a first air inlet pipe (1), wherein a fixing rod (2) is fixed on the upper side inside the first air inlet pipe (1), a temperature sensor (3) is fixed on the lower side of the fixing rod (2), meanwhile, the right side of the first air inlet pipe (1) is communicated with a temperature processing assembly (4), the right side of the temperature processing assembly (4) is communicated with a second air inlet pipe (5), the second air inlet pipe (5) is communicated with a dust removal cleaning box shell (12) through an inlet pipeline (6), a first flange (7) is fixed on the inlet pipeline (6), and the first flange (7) is in threaded connection with an explosion-proof assembly (9) through a bolt (8);

exhaust duct (10), exhaust duct (10) run through on clean case shell (12) right side of dust removal, and exhaust fan (11) internal fixation has exhaust fan (11), dust removal chamber (13) and exhaust chamber (14) have been seted up in clean case shell (12) of dust removal, and exhaust chamber (14) are linked together through pulse dust pocket (15) and dust removal chamber (13), and clean case shell (12) front side of dust removal is fixed with control box (20) simultaneously.

2. The anti-explosion coal mill dust removal cleaning device according to claim 1, characterized in that: temperature processing subassembly (4) are including intensification pipeline (401), electric heating wire (402), cooling pipeline (403), cooling tube (404), water inlet (405) and delivery port (406), it has electric heating wire (402) to inlay in intensification pipeline (401), the winding has cooling tube (404) on cooling pipeline (403), and cooling tube (404) one end is linked together with water inlet (405), and cooling pipeline (403) other end is linked together with delivery port (406) simultaneously.

3. The anti-explosion coal mill dust removal cleaning device according to claim 1, characterized in that: the explosion-proof assembly (9) comprises second flanges (901), explosion-proof pipes (902) and explosion-proof valves (903), the explosion-proof pipes (902) are fixed between the second flanges (901), and the explosion-proof valves (903) are fixed in the explosion-proof pipes (902).

4. The anti-explosion coal mill dust removal cleaning device according to claim 3, characterized in that: the first flange (7) and the second flange (901) form a dismounting and mounting structure through bolts (8).

5. The anti-explosion coal mill dust removal cleaning device according to claim 1, characterized in that: and a cooling device (16) is embedded on the dedusting and cleaning box shell (12).

6. The anti-explosion coal mill dust removal cleaning device according to claim 1, characterized in that: the guide chute (17) is communicated with the lower side of the dust removal cleaning box shell (12), a vibrator (18) is fixed on the outer wall of the guide chute (17), and a sealing cover (19) is in threaded connection with the lower side of the guide chute (17).