CN116101535A - Energy-saving cement grinding station cement quantitative filling device and application method thereof - Google Patents

Abstract

The invention relates to the technical field of filling devices, in particular to a cement quantitative filling device for an energy-saving cement grinding station and a use method thereof. By arranging corresponding mechanisms on the quantitative cement filling device, the invention reduces the probability of cement drifting, reduces the waste of cement, slows down the consumption of resources, saves more time and labor when cleaning, reduces the influence on the body, reduces the filling cost and saves more energy.

Description

A kind of cement quantitative filling device for energy-saving cement grinding station and its application method

technical field

The invention belongs to the technical field of filling devices, and in particular relates to an energy-saving cement quantitative filling device for cement grinding stations and a use method thereof.

Background technique

The cement grinding station is a cement product production unit formed by separating the final finished product stage in cement production. In this stage, cement clinker is added with an appropriate amount of mixed materials and gypsum for grinding, and the finished cement is ground. The production of cement can generally be divided into three processes: raw material preparation, clinker calcination and cement production. The powder is filled in cement bags for quantitative filling.

At present, when people are filling cement, the cement bag is usually open, and after the cement falls into the bag, it will impact with the cement belt, causing a large amount of cement to float into the air, which will cause waste of cement. Exacerbating the consumption of resources, not energy-saving enough, difficult to clean up, time-consuming and labor-intensive, at the same time, after the cement is inhaled into the human body, it will affect the health of the body, and the filling cost is high.

Therefore, in view of the above technical problems, it is necessary to provide an energy-saving cement quantitative filling device for cement grinding station and its use method.

Contents of the invention

The object of the present invention is to provide an energy-saving cement quantitative filling device for cement grinding station and its use method, so as to solve the problem that the above-mentioned cement is scattered in the air, which not only causes waste, but also is difficult to clean, and the filling cost is high.

In order to achieve the above object, the technical solution provided by an embodiment of the present invention is as follows:

An energy-saving cement quantitative filling device for a cement grinding station, comprising: a quantitative filling device body, a pneumatic defloating mechanism, a circulation power mechanism, a lifting defloating mechanism and a lifting power mechanism;

The body of the quantitative canning device is connected with a discharge pipeline and a storage bin;

The discharge pipeline is connected with a pneumatic defloating mechanism for absorbing cement in the air;

Wherein, the pneumatic defloating mechanism includes a defloating chamber, a defloating guide plate is connected between the defloating chamber and the discharge pipeline, and a defloating air storage chamber is connected to the body of the quantitative filling device;

The storage bin is connected with a circulation power mechanism for recovering the absorbed cement;

The body of the quantitative canning device is connected with a lifting type defloating mechanism, which is used to reduce the floating of cement;

Wherein, the lifting type defloating mechanism includes a lifting guide, a lifting resistance net is connected to the lifting guide, a pair of lifting sliding bins are connected in the body of the quantitative filling device, and a lifting sliding bin is connected in the lifting sliding bin. slide bar;

The body of the quantitative canning device is connected with a lifting power mechanism, which is used to improve the effect of the lifting type defloating mechanism on absorbing cement.

Further, there is a de-float communication pipeline connected between the de-float chamber and the de-float gas storage chamber, which communicates with the de-float chamber and the de-float gas storage chamber, so that a negative pressure can be formed in the de-float gas storage chamber, and the de-float gas can be extracted. The air in the warehouse.

The buoyancy-removing communication pipeline is arranged through the body of the quantitative filling device, which facilitates the installation of the buoyancy-removal communication pipeline and improves the stability of the buoyancy-removal communication pipeline;

The buoy removal communication pipeline is connected with a number of buoy removal pressure sheets, which can seal the buoyancy removal communication pipeline. After the lifting resistance net is in the cement bag and is blocked by cement, the buoyancy removal pressure sheet will be sucked and opened to allow the air to circulate. , which reduces the probability that the cement will be directly extracted from the discharge pipe.

Further, the circulation power mechanism includes a circulation duct, which communicates with the storage bin, so that the air in the circulation duct can enter the storage bin;

A circulation communication pipeline is connected between the circulation pipeline and the de-float gas storage bin, which connects the circulation pipeline and the de-float gas storage bin, so that the cement extracted from the de-float gas storage bin can finally enter the storage bin. The pipeline runs through the circulation pipeline and the de-floating gas storage tank;

The storage bin is connected with a circulation motor, which can drive the rotation of the circulation driving wheel and provide corresponding power for the rotation of the circulation driving wheel.

Further, the circulation motor is connected with a circulation driving wheel, which can be driven by the circulation motor to rotate, so that the circulation driven wheel is driven to rotate synchronously;

The circulation pipe is provided with a circulation rotation shaft, which can be driven to rotate and mobilize the rotation of the circulation guide cone and the circulation fan. A pair of circulation supports is connected between the circulation pipe and the circulation rotation shaft, which improves the balance of the circulation rotation shaft. Sexuality, which reduces the chance of inclination of circulation rotation axis;

The circulation guide cone is connected to the circulation rotating shaft, which can protect the circulation fan, reduce the probability of cement adhering to the circulation fan, and improve the cleanliness of the circulation fan.

Further, several circulation fans are connected to the circulation rotating shaft, which can drive the circulation of air through rotation, so that the cement in the defloating air storage bin enters the storage bin;

The side of the circulation rotating shaft close to the circulation motor is connected with a circulation driven wheel, which can cooperate with the circulation driving wheel and rotate synchronously. A circulation transmission belt is connected between the circulation driving wheel and the circulation driven wheel, and can pass through the circulation driving wheel Drive the circulation driven wheel to rotate and play the role of transmission;

The storage bin is connected with a circulation exhaust net, which can block the cement and avoid the possibility of cement discharge. At the same time, it can discharge the excess air in the storage bin. Exhaust mesh matching exhaust slots.

Further, the lifting sliding rod is arranged through the lifting guide, which can fix the lifting guide, reduces the possibility of the lifting guide following the rotation of the lifting threaded rod, and improves the stability of the lifting guide;

A lifting communication pipeline is connected between the lifting sliding chamber and the defloating air storage chamber, which connects the lifting sliding chamber and the defloating air storage chamber, so that the air in the lifting sliding chamber can enter the defloating air storage chamber. The lifting communication pipe runs through the body of the quantitative canning device, the lifting and sliding chamber and the de-floating gas storage chamber;

A lifting limit ring is connected between the lifting sliding rod and the lifting sliding chamber, which can limit the lifting sliding rod, reduces the probability of the lifting sliding rod breaking away from the lifting sliding chamber, and makes the sliding of the lifting sliding rod more stable.

Further, the lifting power mechanism includes a lifting motor, which can drive the rotation of the lifting rotation shaft and provide corresponding power for the rotation of the lifting rotation shaft. The lifting rotation shaft is connected to the lifting motor, which can drive the lifting threaded rod through rotation lifting, so that the lifting threaded rod can be controlled to rise or fall, and the lifting and rotating shaft is set through the body of the quantitative filling device;

A lifting rotating shaft is connected between the lifting rotating shaft and the quantitative filling device body, which reduces the friction between the lifting rotating shaft and the quantitative filling device body, and improves the service life of the lifting rotating shaft and the quantitative filling device body.

Further, a lifting threaded rod is connected inside the lifting rotating shaft, which can be lifted by rotating the lifting rotating shaft, and a threaded groove matching the lifting threaded rod is dug on the lifting rotating shaft.

Further, a lifting seal is connected between the lifting rotating shaft and the lifting threaded rod, which improves the sealing performance of the lifting rotating shaft and reduces the probability of cement entering the lifting rotating shaft;

The lifting rotating shaft is connected with a lifting flat pressure net, which balances the air pressure in the lifting rotating shaft and the quantitative canning device body, and reduces the possibility that the lifting threaded rod cannot be lifted. Press nets to match flat press grooves.

A method for using a cement quantitative filling device for an energy-saving cement grinding station, comprising the following steps:

S1. When the quantitative canning device body is running, the lifting motor is turned on, and the lifting guide is transported into the cement bag through the rotation of the lifting rotating shaft;

S2. Turn on the circulation motor to rotate the circulation fan to draw air from the lifting guide to reduce the air pressure in the cement bag, thereby reducing the probability of cement flying out of the cement bag;

S3. When the cement in the cement bag blocks the lifting resistance net, the negative pressure will suck away the floating pressure sheet;

S4. The cement that floats out of the cement bag will be extracted by the de-floating connecting pipeline, and the de-floating guide plate can improve the uniformity of extraction, so that the cement around the discharge pipeline can be extracted;

S5. The air carrying the cement is extracted from the de-floating air storage bin into the storage bin. The excess air in the storage bin will be discharged through the circulation exhaust net, and the cement will be blocked by the circulation exhaust net.

Compared with the prior art, the present invention has the following advantages:

The present invention reduces the probability of cement drifting, reduces the waste of cement, slows down the consumption of resources, and saves time and labor for cleaning, and at the same time, reduces the impact on the body and reduces the The cost of filling is more energy-saving.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments described in the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is a side view sectional view of a cement quantitative filling device for an energy-saving cement grinding station in an embodiment of the present invention;

Fig. 2 is a structural schematic diagram of place A in Fig. 1;

Fig. 3 is a schematic diagram of the structure at B in Fig. 1;

Fig. 4 is a schematic diagram of the structure at C in Fig. 1;

Fig. 5 is a schematic diagram of the structure at D in Fig. 1;

Fig. 6 is a schematic diagram of the structure at E in Fig. 1;

Fig. 7 is a schematic diagram of the structure at F in Fig. 1;

Fig. 8 is a perspective view of a cement quantitative filling device for an energy-saving cement grinding station in an embodiment of the present invention;

FIG. 9 is a schematic diagram of the structure at G in FIG. 8 .

In the figure: 1. Quantitative canning device body, 101. Discharging pipeline, 102. Storage bin, 2. Pneumatic defloating mechanism, 201. Defloating warehouse, 202. Defloating guide plate, 203. Defloating gas storage Warehouse, 204. Defloating connecting pipeline, 205. Defloating pressure sheet, 3. Circulating power mechanism, 301. Circulating pipeline, 302. Circulating connecting pipeline, 303. Circulating motor, 304. Circulating driving wheel, 305. Circulating rotating shaft, 306. Circulation support, 307. Circulation guide cone, 308. Circulation fan, 309. Circulation driven wheel, 310. Circulation transmission belt, 311. Circulation exhaust net, 4. Lifting defloating mechanism, 401. Lifting guide, 402. Lifting resistance net, 403. Lifting sliding warehouse, 404. Lifting sliding rod, 405. Lifting connecting pipe, 406. Lifting limit ring, 5. Lifting power mechanism, 501. Lifting motor, 502. Lifting rotating shaft, 503. Lifting shaft , 504. Lifting threaded rod, 505. Lifting seal, 506. Lifting flat pressure net.

Detailed ways

The present invention will be described in detail below in conjunction with various embodiments shown in the drawings. However, these embodiments do not limit the present invention, and any structural, method or functional changes made by those skilled in the art according to these embodiments are included in the protection scope of the present invention.

The invention discloses an energy-saving cement quantitative filling device for a cement grinding station, as shown in Figs. Formula removes floating mechanism 4 and lifting power mechanism 5.

Referring to Figures 1-9, the quantitative canning device body 1 is connected with a discharge pipeline 101 and a storage bin 102, and the discharge pipeline 101 is connected with a pneumatic defloating mechanism 2 for absorbing cement in the air. Wherein, the pneumatic defloating mechanism 2 includes a defloating chamber 201, which facilitates the installation of the defloating guide plate 202 and improves the air absorption effect.

Wherein, a defloating guide plate 202 is connected between the defloating chamber 201 and the discharge pipeline 101, and the air-carrying cement can be guided by the defloating guide plate 202, which improves the coverage area of the airflow and makes the range of cement extracted larger. Reduced waste of cement.

In addition, the de-floating air storage bin 203 is connected to the body 1 of the quantitative filling device, which can temporarily store the air, so that the air can be better extracted into the storage bin 102 .

Referring to Fig. 1-shown in Fig. 8, there is a defloating communication pipeline 204 connected between the defloating chamber 201 and the defloating gas storage chamber 203, which connects the defloating chamber 201 and the defloating gas storage chamber 203, so that the defloating gas storage chamber Negative pressure can be formed in 203 to extract and remove the air at the floating storehouse 201.

Wherein, the buoyancy-removing communication pipeline 204 is arranged through the body 1 of the quantitative filling device, which facilitates the installation of the buoyancy-removal communication pipeline 204 and improves the stability of the buoyancy-removal communication pipeline 204 .

In addition, several buoyancy removal pressure sheets 205 are connected in the buoyancy removal communication pipeline 204, which can close the buoyancy removal communication pipeline 204. After the lifting resistance net 402 is in the cement bag and is blocked by cement, the buoyancy removal pressure sheet 205 will be sucked and opened. , so that the air can be circulated, reducing the probability that the cement is discharged from the discharge pipe 101 and directly extracted.

Referring to Figures 1-4, the storage bin 102 is connected with a circulation power mechanism 3 for reclaiming the absorbed cement. The circulation power mechanism 3 includes a circulation pipe 301, which communicates with the storage bin 102, so that Air can enter the storage bin 102 .

Among them, a circulation communication pipe 302 is connected between the circulation pipe 301 and the defloatation gas storage bin 203, which connects the circulation pipe 301 and the defloatation gas storage bin 203, so that the cement extracted by the defloatation gas storage bin 203 can finally enter the storage bin 102 , the circulation communication pipeline 302 is set through the circulation pipeline 301 and the defloating gas storage bin 203 .

Optionally, a circulation motor 303 is connected inside the storage bin 102 , which can drive the rotation of the circulation driving wheel 304 and provide corresponding power for the rotation of the circulation driving wheel 304 .

1-6, the circulation motor 303 is connected with the circulation driving wheel 304, which can be driven by the circulation motor 303 to rotate, so that the circulation driven wheel 309 is driven to rotate synchronously.

In other words, there is a circulation rotating shaft 305 inside the circulation pipe 301, which can be driven to rotate and mobilize the rotation of the circulation guiding cone 307 and the circulation fan 308. The balance of the circulation rotating shaft 305 reduces the probability of the circulation rotating shaft 305 being tilted.

In addition, the circulation guide cone 307 is connected to the circulation rotating shaft 305, which can protect the circulation fan 308, reduce the probability of cement adhering to the circulation fan 308, and improve the cleanliness of the circulation fan 308.

Referring to Figures 1-3, a number of circulation fans 308 are connected to the circulation rotating shaft 305, which can drive the circulation of air through rotation, so that the cement in the defloating air storage bin 203 enters the storage bin 102.

Wherein, the side of the circulation rotating shaft 305 close to the circulation motor 303 is connected with a circulation driven wheel 309, which can cooperate with the circulation driving wheel 304 to perform synchronous rotation, and a circulation transmission belt 310 is connected between the circulation driving wheel 304 and the circulation driven wheel 309, The circulation driven wheel 309 can be driven to rotate by the circulation driving wheel 304, thus playing the role of transmission.

In addition, the storage bin 102 is connected with a circulation exhaust net 311, which can block the cement and avoid the possibility of cement discharge. At the same time, the excess air in the storage bin 102 can be discharged. An exhaust slot matching the circulation exhaust net 311.

Referring to Figures 1-7, the quantitative canning device body 1 is connected with a lifting type defloating mechanism 4 for reducing the floating of cement. Guiding and buffering reduce the impact force between the cement and the cement bag, reducing the amount of cement floating.

In addition, the lifting guide 401 is connected with the lifting resistance net 402, which can extract the air in the cement bag, reducing the possibility of cement bag dust rushing out, and reducing the probability of cement rushing out together with the air.

Optionally, a pair of lifting and sliding bins 403 are connected in the body 1 of the quantitative canning device, which facilitates the sliding of the lifting and sliding rods 404 and enables the lifting and lowering sliding rods 404 to be lifted. Sliding following the lifting of the lifting guide 401 reduces the probability that the lifting guide 401 rotates following the lifting threaded rod 504 .

Referring to Figures 1 to 8, the lifting sliding rod 404 is set through the lifting guide 401, which can fix the lifting guide 401, reduces the possibility that the lifting guide 401 rotates with the lifting threaded rod 504, and improves the lifting guide 401. 401 stability.

Wherein, a lifting communication pipe 405 is connected between the lifting sliding bin 403 and the de-floating gas storage bin 203, which connects the lifting sliding bin 403 and the de-floating gas storage bin 203, so that the air in the lifting sliding bin 403 can enter the de-floating storage. In the gas chamber 203 , the lifting communication pipe 405 runs through the quantitative filling device body 1 , the lifting slide chamber 403 and the defloating gas storage chamber 203 .

In addition, a lift limit ring 406 is connected between the lift slide bar 404 and the lift slide compartment 403, which can limit the lift slide bar 404, reduces the probability of the lift slide bar 404 breaking away from the lift slide storehouse 403, and makes the lift slide bar 404 The sliding is more stable.

Referring to Figures 1-5, the body 1 of the quantitative canning device is connected with a lifting power mechanism 5, which is used to improve the effect of the lifting type defloating mechanism 4 absorbing cement. The lifting power mechanism 5 includes a lifting motor 501, which can drive the lifting and rotating The rotation of the shaft 502 provides corresponding power for the rotation of the lifting rotating shaft 502. The lifting rotating shaft 502 is connected to the lifting motor 501, which can drive the lifting of the lifting threaded rod 504 through the rotation, so that the lifting threaded rod 504 can be controlled to lift. Up or down, the lifting rotating shaft 502 runs through the body 1 of the quantitative filling device.

In addition, a lifting rotating shaft 503 is connected between the lifting rotating shaft 502 and the quantitative filling device body 1, which reduces the friction between the lifting rotating shaft 502 and the quantitative filling device body 1, and improves the lifting rotating shaft 502 and the quantitative filling device body 1. The service life of device body 1.

Referring to Figs. 1 to 6, a lifting threaded rod 504 is connected to the lifting rotating shaft 502, which can be lifted by the rotation of the lifting rotating shaft 502.

Wherein, a lifting seal 505 is connected between the lifting rotating shaft 502 and the lifting threaded rod 504 , which improves the sealing performance of the lifting rotating shaft 502 and reduces the probability of cement entering the lifting rotating shaft 502 .

In addition, the lifting rotating shaft 502 is connected with a lifting flat pressure net 506, which balances the air pressure in the lifting rotating shaft 502 and the quantitative canning device body 1, and reduces the possibility that the lifting screw rod 504 cannot be lifted. There is a flat pressure groove matched with the lifting flat pressure net 506.

A method for using a cement quantitative filling device for an energy-saving cement grinding station, comprising the following steps:

S1. When the quantitative canning device body 1 is running, the lifting motor 501 is turned on, and the lifting guide 401 is transported into the cement bag through the rotation of the lifting rotating shaft 502;

S2. Turn on the circulation motor 303 to rotate the circulation fan 308, extract air from the lifting guide 401, reduce the air pressure in the cement bag, and then reduce the probability of cement flying out of the cement bag;

S3. When the cement in the cement bag blocks the lifting resistance net 402, the negative pressure will suck the de-floating pressure sheet 205 away;

S4. The cement that floats to the outside of the cement bag will be extracted by the buoyancy-removing communication pipeline 204, and the buoyancy-removal guide plate 202 can improve the uniformity of extraction, so that the cement around the discharge pipeline 101 can be extracted;

S5. The air-carrying cement is extracted from the defloating air storage bin 203 into the storage bin 102 , the excess air in the storage bin 102 will be discharged through the circulation exhaust net 311 , and the cement will be blocked by the circulation exhaust net 311 .

It will be apparent to those skilled in the art that the invention is not limited to the details of the above-described exemplary embodiments, but that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Accordingly, the embodiments should be regarded in all points of view as exemplary and not restrictive, the scope of the invention being defined by the appended claims rather than the foregoing description, and it is therefore intended that the scope of the invention be defined by the appended claims rather than by the foregoing description. All changes within the meaning and range of equivalents of the elements are embraced in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

In addition, it should be understood that although the specification is described according to the embodiments, not each embodiment only includes an independent technical solution, and this description in the specification is only for clarity, and those skilled in the art should take the specification as a whole , the technical solutions in the various embodiments can also be properly combined to form other implementations that can be understood by those skilled in the art.

Claims (10)

1. An energy-saving cement grinding station cement quantitative filling device, which is characterized by comprising:

the quantitative canning device comprises a quantitative canning device body (1), wherein a discharging pipeline (101) and a storage bin (102) are connected to the quantitative canning device body (1);

the pneumatic floating removing mechanism (2) is connected to the discharging pipeline (101) and is used for sucking cement in the air;

the pneumatic floating removing mechanism (2) comprises a floating removing bin (201), a floating removing guide plate (202) is connected between the floating removing bin (201) and the discharging pipeline (101), and a floating removing gas storage bin (203) is connected to the quantitative canning device body (1);

a circulation power mechanism (3) connected to the storage bin (102) for recovering the sucked cement;

the lifting type floating removing mechanism (4) is connected in the quantitative canning device body (1) and is used for reducing the floating of cement;

the lifting type floating removing mechanism (4) comprises a lifting guide piece (401), a lifting blocking net (402) is connected to the lifting guide piece (401), a pair of lifting sliding bins (403) are connected to the quantitative canning device body (1), and lifting sliding rods (404) are connected to the lifting sliding bins (403);

and the lifting power mechanism (5) is connected to the quantitative canning device body (1) and is used for improving the effect of the lifting type floating removing mechanism (4) on absorbing cement.

2. The cement quantitative filling device for the energy-saving cement grinding station according to claim 1, wherein a floating removing communicating pipe (204) is connected between the floating removing bin (201) and the floating removing gas storage bin (203), the floating removing communicating pipe (204) penetrates through the quantitative canning device body (1), and a plurality of floating removing pressure plates (205) are connected in the floating removing communicating pipe (204).

3. The cement quantitative filling device for the energy-saving cement grinding station according to claim 1, wherein the circulating power mechanism (3) comprises a circulating pipeline (301), a circulating communicating pipeline (302) is connected between the circulating pipeline (301) and the floating gas removal storage bin (203), the circulating communicating pipeline (302) penetrates through the circulating pipeline (301) and the floating gas removal storage bin (203), a circulating motor (303) is connected in the storage bin (102), and a circulating driving wheel (304) is connected to the circulating motor (303).

4. A cement quantitative filling device for an energy-saving cement grinding station according to claim 3, characterized in that a circulation rotating shaft (305) is arranged in the circulation pipeline (301), a pair of circulation brackets (306) are connected between the circulation pipeline (301) and the circulation rotating shaft (305), a circulation guide cone (307) is connected to the circulation rotating shaft (305), and a plurality of circulation fans (308) are connected to the circulation rotating shaft (305).

5. The cement quantitative filling device for the energy-saving cement grinding station according to claim 4, wherein one side of the circulating rotary shaft (305) close to the circulating motor (303) is connected with a circulating driven wheel (309), a circulating driving belt (310) is connected between the circulating driving wheel (304) and the circulating driven wheel (309), a circulating exhaust net (311) is connected to the storage bin (102), and an exhaust groove matched with the circulating exhaust net (311) is cut on the storage bin (102).

6. The cement quantitative filling device for the energy-saving cement grinding station according to claim 1, wherein the lifting sliding rod (404) penetrates through the lifting guide piece (401), a lifting communication pipeline (405) is connected between the lifting sliding bin (403) and the floating gas removal bin (203), the lifting communication pipeline (405) penetrates through the quantitative filling device body (1), the lifting sliding bin (403) and the floating gas removal bin (203), and a lifting limiting ring (406) is connected between the lifting sliding rod (404) and the lifting sliding bin (403).

7. The cement quantitative filling device for the energy-saving cement grinding station according to claim 6, wherein the lifting power mechanism (5) comprises a lifting motor (501), a lifting rotating shaft (502) is connected to the lifting motor (501), the lifting rotating shaft (502) penetrates through the quantitative filling device body (1), and a lifting rotating shaft (503) is connected between the lifting rotating shaft (502) and the quantitative filling device body (1).

8. The cement quantitative filling device for the energy-saving cement grinding station according to claim 1, wherein a lifting threaded rod (504) is connected to the lifting rotating shaft (502), and a thread groove matched with the lifting threaded rod (504) is cut on the lifting rotating shaft (502).

9. The cement quantitative filling device for the energy-saving cement grinding station according to claim 8, wherein a lifting sealing piece (505) is connected between the lifting rotating shaft (502) and the lifting threaded rod (504), a lifting flat pressing net (506) is connected to the lifting rotating shaft (502), and flat pressing grooves matched with the lifting flat pressing net (506) are cut on the lifting rotating shaft (502).

10. A method of using the cement dosing device for an energy-efficient cement grinding station according to any one of claims 1 to 9, comprising the steps of:

s1, when the quantitative canning device body (1) operates, starting a lifting motor (501), and conveying a lifting guide piece (401) into a cement bag through rotation of a lifting rotating shaft (502);

s2, starting a circulation motor (303), enabling a circulation fan (308) to rotate, and extracting air from a lifting guide piece (401) to reduce the air pressure in the cement bag, so that the probability of scattering cement out of the cement bag is reduced;

s3, when the lifting blocking net (402) is blocked by cement in the cement bag, the negative pressure can suck the floating pressure removing sheet (205);

s4, extracting cement which drifts outside the cement bag by the floating-removing communicating pipeline (204), wherein the floating-removing guide plate (202) can promote the uniformity of extraction, so that the cement around the discharging pipeline (101) can be extracted;

s5, air carrying cement is extracted from the floating gas storage bin (203) into the storage bin (102), redundant air in the storage bin (102) is discharged through the ventilation and exhaust net (311), and the cement is blocked by the ventilation and exhaust net (311).

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