CN216137389U

CN216137389U - Passage powder selecting structure of cement grinding system

Info

Publication number: CN216137389U
Application number: CN202121329836.8U
Authority: CN
Inventors: 谢才龙; 郭秀生; 林海波; 蔡冠荣; 谢裕兴; 温胜元
Original assignee: Fujian Yongding Minfu Building Materials Co ltd
Current assignee: Fujian Yongding Minfu Building Materials Co ltd
Priority date: 2021-06-15
Filing date: 2021-06-15
Publication date: 2022-03-29
Anticipated expiration: 2031-06-15

Abstract

The utility model discloses a passage powder selecting structure of a cement grinding system, which comprises a screening device, a screening box and a screening net, wherein the screening device is welded on a conveyor belt bracket through a base of the screening device, four upright posts are arranged on the base in a rectangular array, springs are arranged at the upper ends of the four upright posts, the screening box is fixed at the upper ends of the springs, an inlet and outlet groove in an inclined design is formed in the front surface of the screening box, slide ways are arranged on the inner walls of the two ends of the inlet and outlet groove in the screening box, the screening box penetrates through the inlet and outlet groove and slides in the screening box along the slide ways and is arranged in the screening box, a feed hopper is arranged at the position of a conveyor belt discharge port at the upper end of the screening box, a fine material discharge port is arranged at the lower end of the screening box, a vibrating motor is arranged on a shell of the fine material discharge port, and a coarse material discharge port is arranged at the lowest position of the screening net on the right side of the screening net. The utility model reduces the repeated grinding of the materials, reduces the power consumption of the grinding system and improves the yield by additionally arranging the screening device on the feeding channel of the roller press, the scattering machine and the powder concentrator.

Description

Passage powder selecting structure of cement grinding system

Technical Field

The utility model relates to the technical field of cement manufacturing, in particular to a passage powder selecting structure of a cement grinding system.

Background

In recent years, cement grinding power consumption of cement enterprises is generally higher, and in order to save the power consumption of the process, the enterprises adopt the concept of priority of external work, increase the external work, increase a grinding head roller press, a scattering machine and a powder concentrator, and aim to improve the fineness of coarse materials when the coarse materials are fed into the mill and reduce the reactive loss in the mill.

In the present investigation, it is found that the cement material still has partially qualified fine powder in the coarse material of the roller feeding or the secondary roller returning. When the fine powder enters the roller press again for rolling, a rolling cushion layer or a material collapse is formed, the work of the roller press is influenced, the power consumption of a system is increased, and the yield is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a passage powder selecting structure of a cement grinding system, which has the advantages of reducing repeated grinding of materials, reducing power consumption of the grinding system, improving the yield and solving the problems in the background art.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a cement grinding system passageway selection powder structure, includes sieving mechanism, screening case and screening net, the sieving mechanism is the rectangle array through its base welding on the conveyer belt support, installs four stands on the base, and the spring is all installed to four stand upper ends, and the spring upper end is fixed with the screening case, the screening case openly sets up the business turn over groove that is the slope design, and the screening incasement portion is located installs the slide on the inner wall at business turn over groove both ends, the screening net passes from the business turn over groove and slides in along the slide and installs in the screening case, and the handle is installed to the positive centre of screening net, screening case upper end is located conveyer belt discharge gate department and installs the feeder hopper, and screening case lower extreme is equipped with the thin material discharge gate, and installs vibrating motor on the thin material discharge gate shell, and screening case right side is located the screening net minimum and is equipped with the coarse fodder discharge gate.

Preferably, guide plates are symmetrically arranged at the lower ends of the screening nets at two sides in the screening box.

Preferably, the screening box is located two pairs of solid fixed rings of upper and lower extreme symmetry installation in the business turn over groove openly, and the bolt is installed to the interior insert of two pairs of solid fixed rings.

Preferably, the screening net is fixed on the screening box by inserting a bolt into the fixing ring.

Preferably, the screening net is provided with three screening nets, namely a screening net A, a screening net B and a screening net C, and meshes of the screening net A, the screening net B and the screening net C are gradually reduced.

Preferably, an inclined supporting rod is arranged between the lower end of the base and the conveyor belt bracket.

Compared with the prior art, the utility model has the following beneficial effects:

the utility model screens out qualified fine powder to be directly connected into a mill by additionally arranging the screening devices on the feeding channel entering the roller press, the powder returning channel of the scattering machine and the powder returning channel of the powder concentrator, thereby reducing repeated grinding of materials, improving the machine-hour output of the roller press, the scattering machine, the powder concentrator and the ball mill and reducing the power consumption of a grinding system.

Drawings

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

FIG. 2 is an external view of a screening chamber according to the present invention;

FIG. 3 is a view showing the internal structure of the screening chamber of the present invention;

FIG. 4 is a schematic view of a screen panel of the present invention in a condition A;

FIG. 5 is a schematic view of a screen B according to the present invention;

FIG. 6 is a schematic view of a screen C according to the present invention.

In the figure: 1. a conveyor belt; 2. an inclined support rod; 3. a fine material discharge port; 4. a vibration motor; 5. a screening device; 6. a base; 7. a column; 8. a spring; 9. a coarse material outlet; 10. a screening box; 11. screening a net; 12. a bolt; 13. a slot is arranged in and out; 14. a handle; 15. a fixing ring; 16. a feed hopper; 17. a slideway; 18. a baffle; 19. a screen A; 20. a screen B; 21. and (4) a screen C.

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 to 6, the present invention provides a technical solution of a passage powder selecting structure of a cement grinding system: a powder selecting structure of a cement grinding system channel comprises a screening device 5, a screening box 10 and a screening net 11, wherein the screening device 5 is welded on a support of a conveyor belt 1 through a base 6 of the screening device, and an inclined support rod 2 is arranged between the lower end of the base 6 and the support of the conveyor belt 1; the screening device 5 is welded on the conveyor belt 1 support through the base 6, and the inclined support rods 2 are arranged between the base 6 and the conveyor belt 1 support, so that the screening device 5 can be fixed very firmly.

Four upright posts 7 are arranged on a base 6 in a rectangular array, springs 8 are arranged at the upper ends of the four upright posts 7, a screening box 10 is fixed at the upper end of each spring 8, an inclined inlet and outlet groove 13 is formed in the front surface of the screening box 10, slide rails 17 are arranged on the inner walls of the two ends of the inlet and outlet groove 13 in the screening box 10, a screening net 11 penetrates through the inlet and outlet groove 13 and slides along the slide rails 17 to be arranged in the screening box 10, a handle 14 is arranged in the middle of the front surface of the screening net 11, the three screening nets 11 are respectively a screen A19, a screen B20 and a screen C21, and meshes of the screen A19, the screen B20 and the screen C21 are gradually reduced; the screening net 11 of the screening device 5 arranged on the feeding channel of the roller press adopts a model of a screen A19, the breaking machine adopts a model of a screen B20, and the powder concentrator adopts a model of a screen C21.

Two pairs of fixing rings 15 are symmetrically arranged on the front surface of the screening box 10 at the upper end and the lower end of the inlet and outlet groove 13, bolts 12 are inserted into the two pairs of fixing rings 15, and the screening net 11 is inserted into the fixing rings 15 through the bolts 12 and fixed on the screening box 10; when the screening net 11 is replaced, the bolts 12 inserted and installed in the two pairs of fixing rings 15 are only required to be drawn out, and the screening net 11 is pulled out through the handle 14, so that the screening net 11 is convenient to replace.

Guide plates 18 are symmetrically arranged at the lower ends of the screening nets 11 on the two sides inside the screening box 10, a feed hopper 16 is arranged at the discharge port of the conveyor belt 1 at the upper end of the screening box 10, a fine material discharge port 3 is arranged at the lower end of the screening box 10, a vibration motor 4 is arranged on the shell of the fine material discharge port 3, and a coarse material discharge port 9 is arranged at the lowest position of the screening nets 11 on the right side of the screening box 10; during operation, during the material conveys feeder hopper 16 through conveyer belt 1, pour into screening net 11 in the feeder hopper 16 on, start vibrating motor 4, vibrating motor 4 work drives screening case 10 shake under the effect of spring 8 to drive screening net 11 shake and filter the material, qualified direct discharge from fine material discharge gate 3, unqualified discharge from coarse fodder discharge gate 9 enters into next process and processes.

The utility model selects the model of the vibrating motor, namely LD100, for design, the motor of the model is only used as reference for selection by the person in the technical field, and the person in the technical field can select the motor with the same parameters and functions for installation and debugging according to the actual production requirement, and the utility model is not repeated.

The working principle is as follows: when the utility model is used, screening devices 5 are respectively fixed on a roller press, a scattering machine and a powder concentrator feeding channel, a screening net 10 in the screening device 5 arranged on the roller press feeding channel adopts a screen net A19 model, a scattering machine adopts a screen net B20 model, a powder concentrator adopts a screen net C21 model, materials are screened by the screening device 5 with the screen net A19 model before entering the roller press, qualified materials enter the powder concentrator, unqualified materials enter the ball mill for grinding directly after being screened by the screening device 5 with the screen net B20 model, unqualified materials enter the scattering machine for cutting and grinding, the ground materials enter the screening device 5 with the screen net C21 model, qualified materials directly enter the next procedure for manufacturing cement, unqualified materials enter the powder concentrator, after the powder is selected by the powder selecting machine, the qualified cement is directly ground in the ball mill and then enters the next procedure of cement manufacture, and the unqualified cement is cut and ground in the scattering machine again until the qualified cement is ground in the ball mill.

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 utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a cement grinding system passageway selection powder structure, includes sieving mechanism (5), screening case (10) and screen (11), its characterized in that: the screening device (5) is welded on a support of the conveyor belt (1) through a base (6), four upright posts (7) are arranged on the base (6) in a rectangular array, springs (8) are arranged at the upper ends of the four upright posts (7), a screening box (10) is fixed at the upper end of each spring (8), the screening box (10) is openly provided with an inlet and outlet groove (13) which is designed in an inclined manner, the inner walls of the screening box (10) which are positioned at the two ends of the inlet and outlet groove (13) are provided with slideways (17), a screening net (11) passes through the inlet and outlet grooves (13) and slides along the slideways (17) to be arranged in the screening box (10), a handle (14) is arranged in the middle of the front of the screening net (11), the upper end of the screening box (10) is positioned at the discharge port of the conveyor belt (1) and is provided with a feed hopper (16), the lower end of the screening box (10) is provided with a fine material discharge port (3), and a vibrating motor (4) is arranged on the shell of the fine material discharge port (3), the right side of the screening box (10) is provided with a coarse material outlet (9) at the lowest part of the screening net (11).

2. The passage powder selecting structure of the cement grinding system according to claim 1, characterized in that: and guide plates (18) are symmetrically arranged at the lower ends of the screening nets (11) on two sides in the screening box (10).

3. The passage powder selecting structure of the cement grinding system according to claim 1, characterized in that: two pairs of fixing rings (15) are symmetrically arranged on the front surface of the screening box (10) at the upper end and the lower end of the inlet and outlet groove (13), and a bolt (12) is inserted into the two pairs of fixing rings (15).

4. The passage powder selecting structure of the cement grinding system according to claim 1, characterized in that: the screening net (11) is inserted into the fixing ring (15) through the bolt (12) and fixed on the screening box (10).

5. The passage powder selecting structure of the cement grinding system according to claim 1, characterized in that: the screening net (11) is provided with three screens A (19), B (20) and C (21), and the meshes of the screens A (19), B (20) and C (21) are gradually reduced.

6. The passage powder selecting structure of the cement grinding system according to claim 1, characterized in that: and an inclined supporting rod (2) is arranged between the lower end of the base (6) and the support of the conveyor belt (1).