CN212791370U

CN212791370U - Raw material mill grinding ash recycling system

Info

Publication number: CN212791370U
Application number: CN202020795989.0U
Authority: CN
Inventors: 洛春江; 朱文显
Original assignee: Cucc Nanyang Wolong Cement Co ltd
Current assignee: Cucc Nanyang Wolong Cement Co ltd
Priority date: 2020-05-13
Filing date: 2020-05-13
Publication date: 2021-03-26
Anticipated expiration: 2030-05-13

Abstract

The utility model relates to a raw mill grinding dust recycling system, which comprises a raw mill, a fan and a cyclone dust collector, wherein the fan is provided with an air suction opening and an air outlet, and the cyclone dust collector is provided with an air inlet, an air outlet and a dust outlet; the air suction port of the fan is connected with the raw meal mill through a first pipeline, and the air outlet of the fan is connected with the air inlet of the cyclone dust collector through a second pipeline; a closed collecting box is arranged below the dust outlet, the dust outlet is communicated with the collecting box, an auger is arranged on the collecting box and comprises a conveying screw rod and a sleeve, the conveying screw rod penetrates through the collecting box, the sleeve is sleeved on the conveying screw rod and is communicated with the collecting box, the part of the conveying screw rod, which is positioned in the collecting box, is exposed in the collecting box, and the conveying screw rod is connected with a driving device; the end part of the packing auger is provided with a discharge pipe which is communicated with the inside of the sleeve. The utility model discloses collect the back to the mill ash, can make the mill ash obtain reuse.

Description

Raw material mill grinding ash recycling system

Technical Field

The utility model belongs to the technical field of the technique of cement manufacture equipment and specifically relates to a raw material grinds ash recycling system.

Background

Cement raw meal grinds is the equipment that grinds cement raw materials, and it is at the during operation, grinds the raw materials that the homogenization storehouse was carried through the grinding roller, and the sufficient thin powder of fineness is elected to the rethread selection powder mechanism and is carried out production processes on next step, but because the leakproofness problem, its installation actuating mechanism's cavity can produce more raise dust, and this normal work that can influence actuating mechanism on the one hand, and on the other hand can cause the waste of raw meal, so need handle the raise dust.

At present, patent document with publication number CN202070293U discloses a recycling device for dust removed from ore dressing, including the churn that has inlet tube and play thick liquid pipe, agitating unit is being set up in the churn, the conveyer pipe is being connected on the ash outlet that is located the bottom in ash storage storehouse on churn upper portion, the lower extreme export of conveyer pipe is connected with the entry that the sealed cowling upper portion set up, the lower part open end of sealed cowling stretches into in the liquid level of churn, play thick liquid union coupling and being provided with the pump sump of slush pump, the export of slush pump is connecting the ore pulp output tube.

However, since cement raw materials cannot be contacted with water during production, if the raw material mill ash is collected by using the above-mentioned mineral separation fly ash recycling apparatus, the collected mill ash cannot be reused, and thus it is necessary to design an apparatus suitable for recycling the mill ash of cement raw materials.

SUMMERY OF THE UTILITY MODEL

To the not enough of existence among the above-mentioned prior art, the utility model aims at providing a raw material grinds ash recycling system, its fan that is connected through setting up and raw material mill, will grind after the ash sends into cyclone through the fan, collects and uses the auger to grind the ash in the collecting box and carry to the mill ash of collection after can the reuse removes dust.

The above object of the present invention is achieved by the following technical solutions:

a raw mill grinding dust recycling system comprises a raw mill, a fan and a cyclone dust collector, wherein the fan is provided with an air suction opening and an air exhaust opening, and the cyclone dust collector is provided with an air inlet, an air outlet and a dust outlet; the air suction port of the fan is connected with the raw meal mill through a first pipeline, and the air outlet of the fan is connected with the air inlet of the cyclone dust collector through a second pipeline; a closed collecting box is arranged below the dust outlet, the dust outlet is communicated with the collecting box, an auger is arranged on the collecting box and comprises a conveying screw rod and a sleeve, the conveying screw rod penetrates through the collecting box, the sleeve is sleeved on the conveying screw rod and is communicated with the collecting box, the part of the conveying screw rod, which is positioned in the collecting box, is exposed in the collecting box, and the conveying screw rod is connected with a driving device; the end part of the packing auger is provided with a discharge pipe which is communicated with the inside of the sleeve.

By adopting the technical scheme, the fan can send the grinding ash into the cyclone dust collector through the first pipeline, the cyclone dust collector separates the grinding ash from air and then sends the grinding ash into the collecting box, and the conveying screw of the auger rotates to send the grinding ash in the collecting box to the discharging pipe; because whole drying process when collecting the mill ash to after collecting the mill ash once more in the discharging pipe exit, can carry out reuse to the mill ash.

The utility model discloses a further set up to: the control device is arranged in the collecting box and comprises a supporting plate and a spring, the supporting plate is arranged below the conveying screw rod, one end of the spring is fixed at the bottom of the collecting box, and the other end of the spring is fixed on the lower surface of the supporting plate; the driving device of the conveying screw rod is an electric motor, the control device further comprises a travel switch arranged at the bottom of the collecting box, and a time relay electrically connected with the travel switch, and the time relay is electrically connected with the electric motor.

By adopting the technical scheme, the support plate can be continuously pressed downwards in the process of collecting the grinding dust in the collecting box, when the support plate moves downwards to be in contact with the travel switch, the travel switch is triggered, so that the time relay is controlled to be switched on for a period of time, the motor controls the conveying screw to work within the switching-on time of the time relay, and the grinding dust in the collecting box is conveyed to the opening of the discharge pipe; after a certain amount of grinding dust is collected every time, the motor only works for a fixed time, so that the electric power waste caused by long-term work of the motor is avoided.

The utility model discloses a further set up to: the collecting box is a cuboid cavity structure, the supporting plate is of an arc-shaped sheet structure, the middle of the supporting plate is sunken downwards, and the edge of the supporting plate is attached to the inner wall of the collecting box.

Through adopting above-mentioned technical scheme, the mill ash is falling the back from the dust outlet, and the sunken effect of gathering together can produce the mill ash in backup pad middle part, makes conveying screw can contact the mill ash of more volume, and then has improved conveying screw to the transport efficiency of mill ash when rotating at every turn.

The utility model discloses a further set up to: the lower surface of the supporting plate is fixedly provided with a plurality of limiting rods, the bottom of the collecting box is fixedly provided with a plurality of limiting cylinders corresponding to the limiting rods, and the limiting rods are in sliding fit in the limiting cylinders.

Through adopting above-mentioned technical scheme, at the in-process that the backup pad reciprocated, gag lever post and spacing section of thick bamboo can inject the removal orbit of backup pad to the crooked condition takes place for the backup pad when reciprocating has been avoided.

The utility model discloses a further set up to: the edge of the supporting plate is rotatably supported with a plurality of ball rollers, and the cylindrical rollers are abutted to the inner wall of the collecting box.

Through adopting above-mentioned technical scheme, at the in-process that the backup pad reciprocated, cylindrical roller can reduce the frictional force between backup pad and the collecting box inner wall, reduces the probability that the backup pad is blocked.

The utility model discloses a further set up to: and the side wall of the collecting box is provided with a transparent observation window.

Through adopting above-mentioned technical scheme, the staff can observe the collecting box internal conditions through the observation window to can in time handle when breaking down in the collecting box.

The utility model discloses a further set up to: and a third pipeline is arranged between the discharge pipe and the fan, and two ends of the third pipeline are respectively communicated with the second pipeline and the inner ring of the discharge pipe.

Through adopting above-mentioned technical scheme, can produce the raise dust when grinding the ash and falling from the discharging pipe, the fan can form the negative pressure through the third pipeline in the exit of discharging pipe, has reduced the size of the raise dust that the discharging pipe exit produced.

The utility model discloses a further set up to: the outlet of the discharge pipe is provided with a conical end which is of a conical structure contracting towards the interior of the discharge pipe.

Through adopting above-mentioned technical scheme, the toper end can play the gathering effect to the mill ash of following discharging pipe department discharge to the size of the raise dust that produces when further reducing the mill ash and following discharging pipe department.

To sum up, the utility model discloses a beneficial technological effect does:

1. the fan can send the ground ash into the cyclone dust collector through the first pipeline, the cyclone dust collector can separate the ground ash from air and then send the separated ground ash into the collecting box, and the conveying screw of the auger can rotate to send the ground ash in the collecting box out of the discharging pipe; the whole drying process is carried out when the grinding dust is collected, so that the grinding dust can be reused after being collected again at the outlet of the discharge pipe;

2. after a certain amount of grinding dust is collected each time, the motor only works for a fixed time to send out the grinding dust, so that the electric power is saved; the supporting plate with the arc-shaped sheet structure improves the conveying efficiency of the grinding dust when the conveying screw rotates each time; the limiting rod is matched with the limiting cylinder, so that the situation that the supporting plate is inclined when moving up and down is avoided; the cylindrical roller reduces the probability that the supporting plate is blocked;

3. the staff can observe the internal condition of the collecting box through the observation window; the blower reduces the size of the raised dust generated at the outlet of the discharge pipe through the third pipeline; the conical end can further reduce the size of the dust generated when the grinding dust is discharged from the discharge pipe.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a sectional view for showing the internal structure of the collecting container;

fig. 3 is a partially enlarged schematic view of a portion a in fig. 1.

In the figure, 1, raw material grinding; 2. a fan; 21. an air suction opening; 211. a first conduit; 22. an air outlet; 221. a second conduit; 23. a third pipeline; 3. a cyclone dust collector; 31. an air inlet; 32. an air outlet; 33. a dust outlet; 4. a collection box; 41. an observation window; 5. a packing auger; 51. a conveying screw; 52. a sleeve; 53. an electric motor; 54. a discharge pipe; 541. a tapered end; 6. a control device; 61. a support plate; 611. a limiting rod; 612. a limiting cylinder; 613. a cylindrical roller; 62. a spring; 63. a travel switch; 64. a time relay.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, for the utility model discloses a raw meal grinds ash recycling system, include the fan 2 of being connected with raw meal mill 1, still include the cyclone 3 that is connected with fan 2, fan 2 is provided with suction opening 21 and air exit 22, cyclone 3 is provided with air intake 31, air outlet 32 and dust outlet 33, suction opening 21 of fan 2 is connected with the cavity that raw meal mill 1 installed drive arrangement through first pipeline 211, air exit 22 of fan 2 is connected with air intake 31 of cyclone 3 through second pipeline 221, thereby fan 2 can be retrieved in grinding the ash raise dust suction cyclone 3 that produces in raw meal mill 1; the cyclone 3 can separate the dust from the air, so that the dust is collected and discharged from the dust outlet 33, and the air is discharged from the air outlet 32.

Referring to fig. 1 and 2, the cyclone dust collector 3 is supported on the ground through a bracket, the dust outlet 33 is arranged at the lower part of the cyclone dust collector 3, in order to collect the grinding dust discharged from the dust outlet 33 of the cyclone dust collector 3, a closed collecting box 4 is arranged below the dust outlet 33, the dust outlet 33 is communicated with the inside of the collecting box 4, an auger 5 is arranged on the collecting box 4, the auger 5 comprises a conveying screw 51 and a sleeve 52, the conveying screw 51 passes through the collecting box 4, the sleeve 52 is sleeved on the conveying screw 51 and communicated with the collecting box 4, the part of the conveying screw 51 positioned in the collecting box 4 is exposed in the collecting box 4, a motor 53 is arranged on the auger 5, and the motor 53 is arranged at one end of the auger 5 and coaxially fixed with the conveying screw 51; one end of the packing auger 5, which is far away from the motor 53, is provided with a discharge pipe 54 with a cylindrical structure, the discharge pipe 54 is provided with an opening, the opening is arranged downwards, and the discharge pipe 54 is communicated with the interior of the sleeve 52.

Referring to fig. 1 and 2, a control device 6 is further installed in the collection box 4, and the control device 6 can control the motor 53 to operate after the amount of the grinding dust collected in the collection box 4 reaches a certain amount, so as to send out the grinding dust; the control device 6 comprises a support plate 61 and a spring 62, the support plate 61 is arranged below the conveying screw 51, the spring 62 is fixed below the support plate 61, one end of the spring 62 is fixed at the bottom of the collecting box 4, and the other end of the spring 62 is fixed on the lower surface of the support plate 61; the control device 6 further comprises a travel switch 63 arranged at the bottom of the collecting box 4, and a time relay 64 electrically connected with the travel switch 63, wherein the time relay 64 is electrically connected with the motor 53; the support plate 61 is continuously pressed downwards in the process of collecting the grinding ash in the collecting box 4, when the support plate 61 moves downwards to be in contact with the travel switch 63, the travel switch 63 is triggered, so that the time relay 64 is controlled to be switched on for a period of time, the motor 53 controls the conveying screw 51 to work within the switching-on period of the time relay 64, and the grinding ash in the collecting box 4 is conveyed to the opening of the discharge pipe 54; after a certain amount of grinding dust is collected each time, the motor 53 is operated for a fixed time, thereby avoiding electric power waste caused by long-term operation of the motor 53.

Referring to fig. 1 and 2, the collection box 4 is a rectangular hollow structure, in order to enable the grinding dust to be sent out by the conveying screw 51 as much as possible, the support plate 61 is configured to be an arc-shaped sheet structure, the middle part of the support plate 61 is recessed downwards, and the edge of the support plate 61 is attached to the inner wall of the collection box 4, so that the grinding dust can be drawn close to the conveying screw 51 after falling from the dust outlet 33, and the conveying efficiency of the conveying screw 51 during each rotation is improved; the lower surface of the supporting plate 61 is fixedly provided with a plurality of limiting rods 611, the bottom of the collecting box 4 is fixedly provided with a plurality of limiting cylinders 612 corresponding to the limiting rods 611, the limiting rods 611 are in sliding fit in the limiting cylinders 612, and in the up-and-down moving process of the supporting plate 61, the limiting rods 611 and the limiting cylinders 612 can limit the moving track of the supporting plate 61, so that the situation that the supporting plate 61 is inclined when moving up and down is avoided; the edge of the supporting plate 61 is rotatably supported with a plurality of ball rollers, and the cylindrical roller 613 is abutted against the inner wall of the collecting box 4, so that in the process that the supporting plate 61 moves up and down, the cylindrical roller 613 can reduce the friction force between the supporting plate 61 and the inner wall of the collecting box 4, and reduce the probability that the supporting plate 61 is clamped; the transparent observation window 41 is arranged on the side wall of the collecting box 4, and the worker can observe the internal condition of the collecting box 4 through the observation window 41, so that the worker can timely deal with the fault in the collecting box 4.

Referring to fig. 1 and 3, in order to reduce the dust generated at the outlet of the discharge pipe 54 when the ash is discharged, a third pipeline 23 is disposed between the discharge pipe 54 and the fan 2, and two ends of the third pipeline 23 are respectively communicated with the second pipeline 221 and the inner ring of the discharge pipe 54, so that the fan 2 can form a negative pressure at the outlet of the discharge pipe 54 through the third pipeline 23, thereby reducing the dust generated at the outlet of the discharge pipe 54; the outlet of the discharge pipe 54 is provided with a tapered end 541, the tapered end 541 is a tapered structure that is contracted inward of the discharge pipe 54, and the tapered end 541 can gather the grinding dust discharged from the discharge pipe 54, so that the dust generated when the grinding dust is discharged from the discharge pipe 54 is further reduced.

The working principle of the utility model is that the fan 2 sucks the grinding dust generated by the raw material grinding 1 into the cyclone dust collector 3, the grinding dust is separated from the air and then discharged into the collecting box 4 from the dust outlet 33, the grinding dust can continuously press the supporting plate 61 downwards in the collecting process, when the supporting plate 61 moves downwards to contact with the travel switch 63, the travel switch 63 is triggered, thereby controlling the time relay 64 to be switched on for a period of time, the motor 53 controls the conveying screw 51 to work in the time when the time relay 64 is switched on, and the grinding dust in the collecting box 4 is conveyed to the opening of the discharging pipe 54; the utility model discloses whole drying process when collecting the mill ash to the mill ash that makes the collection can direct reuse.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A raw meal mill grinding dust recycling system comprises a raw meal mill (1), a fan (2) and a cyclone dust collector (3), wherein the fan (2) is provided with an air suction opening (21) and an air exhaust opening (22), and the cyclone dust collector (3) is provided with an air inlet (31), an air outlet (32) and a dust outlet (33); the method is characterized in that: an air suction opening (21) of the fan (2) is connected with the raw meal mill (1) through a first pipeline (211), and an air exhaust opening (22) of the fan (2) is connected with an air inlet (31) of the cyclone dust collector (3) through a second pipeline (221); a closed collecting box (4) is arranged below the dust outlet (33), the dust outlet (33) is communicated with the collecting box (4), an auger (5) is arranged on the collecting box (4), the auger (5) comprises a conveying screw (51) and a sleeve (52), the conveying screw (51) penetrates through the collecting box (4), the sleeve (52) is sleeved on the conveying screw (51) and is communicated with the collecting box (4), the part of the conveying screw (51) positioned in the collecting box (4) is exposed in the collecting box (4), and the conveying screw (51) is connected with a driving device; the end part of the packing auger (5) is provided with a discharge pipe (54), and the discharge pipe (54) is communicated with the inside of the sleeve (52).

2. The raw mill ash recycling system of claim 1, wherein: a control device (6) is installed in the collection box (4), the control device (6) comprises a support plate (61) and a spring (62), the support plate (61) is arranged below the conveying screw (51), one end of the spring (62) is fixed at the bottom of the collection box (4), and the other end of the spring is fixed on the lower surface of the support plate (61); the driving device of the conveying screw rod (51) is a motor (53), the control device (6) further comprises a travel switch (63) arranged at the bottom of the collecting box (4), and further comprises a time relay (64) electrically connected with the travel switch (63), and the time relay (64) is electrically connected with the motor (53).

3. The raw mill ash recycling system of claim 2, wherein: the collecting box (4) is of a cuboid cavity structure, the supporting plate (61) is of an arc-shaped sheet structure, the middle of the supporting plate (61) is sunken downwards, and the edge of the supporting plate (61) is attached to the inner wall of the collecting box (4).

4. The raw mill ash recycling system of claim 2, wherein: the lower surface of the supporting plate (61) is fixedly provided with a plurality of limiting rods (611), the bottom of the collecting box (4) is fixedly provided with a plurality of limiting cylinders (612) corresponding to the limiting rods (611), and the limiting rods (611) are in sliding fit in the limiting cylinders (612).

5. The raw mill ash recycling system of claim 2, wherein: the edge of the supporting plate (61) is rotatably supported with a plurality of ball rollers, and the cylindrical rollers (613) are abutted against the inner wall of the collecting box (4).

6. The raw mill ash recycling system as set forth in any one of claims 1 to 5, wherein: the side wall of the collecting box (4) is provided with a transparent observation window (41).

7. The raw mill ash recycling system as set forth in any one of claims 1 to 5, wherein: a third pipeline (23) is arranged between the discharge pipe (54) and the fan (2), and two ends of the third pipeline (23) are respectively communicated with the second pipeline (221) and the inner ring of the discharge pipe (54).

8. The raw mill ash recycling system as set forth in any one of claims 1 to 5, wherein: the outlet of the discharge pipe (54) is provided with a conical end (541), and the conical end (541) is of a conical structure which shrinks towards the interior of the discharge pipe (54).