CN215465011U

CN215465011U - A lime stone rubbing crusher for cement manufacture

Info

Publication number: CN215465011U
Application number: CN202121023634.0U
Authority: CN
Inventors: 陈丙武; 张献伟; 马万喜
Original assignee: Tianrui Cement Group Co Ltd
Current assignee: Tianrui Cement Group Co Ltd
Priority date: 2021-05-13
Filing date: 2021-05-13
Publication date: 2022-01-11
Anticipated expiration: 2031-05-13

Abstract

The utility model provides a limestone pulverizer for cement production, wherein a pair of first hydraulic cylinders are arranged on the upper part of the same side wall of a box body, the free ends of the first hydraulic cylinders penetrate through an opening on the side wall of the box body and extend into the box body, the free ends of piston rods of the two first hydraulic cylinders are connected through a rotating shaft, a pulverizing roller wheel is arranged on the rotating shaft, a plurality of pulverizing rotating shafts are uniformly arranged right below the pulverizing roller wheel, and the pulverizing rotating shafts are rotationally connected with the inner wall of the box body; an inclined blanking plate is arranged right below the crushing rotating shaft, a grinding plate is arranged right below a blanking opening of the blanking plate, a second hydraulic cylinder is rotatably arranged at the bottom of the blanking plate close to the grinding plate, the free end of a piston rod of the second hydraulic cylinder is fixedly connected with a base of the motor, and a grinding ball is fixedly connected to an output shaft of the motor; and the center of the bottom of the grinding plate is fixedly connected with the side wall of the box body below the grinding plate through an inclined third hydraulic cylinder. The automatic limestone crusher can automatically and thoroughly crush limestone with high precision, and has the advantages of simple structure and extremely high crushing efficiency.

Description

A lime stone rubbing crusher for cement manufacture

Technical Field

The utility model relates to the technical field of crushing equipment, in particular to a limestone crusher for cement production.

Background

The cement is a powdery hydraulic inorganic cementing material, is added with water and stirred to form slurry, can be hardened in air or water, and can firmly bond sand, stone and other materials together. Limestone is an indispensable important raw material in the cement production process, the quality of cement is determined to a great extent in the limestone crushing link, the structure of the existing crushing equipment is complex, the crushing precision cannot be guaranteed, the automation is insufficient, and the crushing efficiency is low.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model provides the limestone pulverizer for cement production, which can automatically and thoroughly pulverize limestone with high precision, and has the advantages of simple structure and extremely high pulverizing efficiency.

The technical scheme adopted by the utility model for solving the technical problems is as follows: a limestone pulverizer for cement production comprises a box body, wherein the bottom of the box body is provided with a plurality of supporting legs, the top of the box body is provided with a feeding port, the bottom of the box body is provided with a discharging port, the upper part of the same side wall of the box body is provided with a pair of first hydraulic cylinders, the free ends of the first hydraulic cylinders penetrate through an opening of the side wall of the box body and extend into the box body, the joint of a cylinder barrel and a piston rod of each first hydraulic cylinder is fixed on the side wall of the box body, the free ends of the piston rods of the two first hydraulic cylinders are connected through a rotating shaft, a pulverizing roller is arranged on the rotating shaft, a plurality of pulverizing rotating shafts matched with the pulverizing roller for pulverizing limestone are uniformly arranged right below the pulverizing roller, and the pulverizing rotating shafts are rotatably connected with the inner wall of the box body; an inclined blanking plate is arranged right below the crushing rotating shaft, a grinding plate is arranged right below a blanking opening of the blanking plate, the grinding plate is rotatably connected with the inner wall of the box body, a second hydraulic cylinder is rotatably arranged at the bottom of the blanking plate close to the grinding plate, the free end of a piston rod of the second hydraulic cylinder is fixedly connected with a base of the motor, and a grinding ball is fixedly connected to an output shaft of the motor; and the center of the bottom of the grinding plate is fixedly connected with the side wall of the box body below the grinding plate through an inclined third hydraulic cylinder.

Preferably, the size of the crushing pipe on the outer wall of the crushing roller is consistent with that of the crushing rotating shaft, and the distance between the crushing rotating shafts is smaller than 50 mm.

Preferably, the angle between the blanking plate and the horizontal plane is 30 degrees.

Preferably, the top of the grinding plate is in an inwardly concave arc shape.

Preferably, a gray cast iron base is fixedly installed at the bottom of the supporting leg.

Preferably, the feeding port is funnel-shaped, and the size of the bottom of the feeding port is consistent with that of the top of the box body.

Preferably, the discharge gate is located bottom half central authorities, the discharge gate is the shape of inverted funnel, and the bottom size of discharge gate is less than the bottom half size.

According to the technical scheme, the utility model has the beneficial effects that:

according to the utility model, the grinding roller wheel is matched with the grinding rotating shaft to grind the limestone, the size of the ground limestone is smaller than the distance between the grinding rotating shafts, and then the ground limestone can fall down through the extension and contraction of the second hydraulic cylinder and the rotation of the motor, so that the ground limestone is ground, the limestone can be automatically and thoroughly ground with high precision, and the grinding efficiency is extremely high.

Drawings

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

FIG. 2 is a top view of a pulverizing rotor shaft according to the present invention.

The labels in the figure are: 1. pan feeding mouth, 2, box, 3, crushing pivot, 4, lower feed plate, 5, crushing running roller, 6, first pneumatic cylinder, 7, second pneumatic cylinder, 8, motor, 9, lapping plate, 10, third pneumatic cylinder, 11, grey cast iron base, 12, discharge gate, 13, landing leg.

Detailed Description

The utility model is described in further detail below with reference to the figures and the embodiments.

As shown in fig. 1-2, a limestone pulverizer for cement production comprises a casing 2 provided with a plurality of legs 13 at the bottom, a base 11 of gray cast iron is fixedly mounted at the bottom of the legs 13, the gray cast iron is cast by sand mold or mold with heat conductivity equivalent to that of the sand mold, and the gray cast iron has excellent compression resistance and wear resistance and can be used as a support for bearing pressure.

2 tops of box are equipped with pan feeding mouth 1, pan feeding mouth 1 is the infundibulate, conveniently pours the lime stone into, and the size of pan feeding mouth 1 bottom is unanimous with 2 top sizes of box, and the lime stone is bigger, ensures that the lime stone can pour into in the box 2.

The bottom of the box body 2 is provided with a discharge port 12, the discharge port 12 is arranged in the center of the bottom of the box body 2, the discharge port 12 is in an inverted funnel shape, so that limestone powder can be poured out of the box body 2 conveniently, and the size of the bottom of the discharge port 12 is smaller than that of the bottom of the box body 2, so that the limestone powder can be collected conveniently.

The same lateral wall upper portion of box 2 is equipped with a pair of first pneumatic cylinder 6, the opening that the 6 free ends of first pneumatic cylinder passed the 2 lateral walls of box stretches into in the box 2, the cylinder and the piston rod junction of first pneumatic cylinder 6 are fixed in the 2 lateral walls of box, 6 piston rod free ends of two first pneumatic cylinders are connected through the pivot, be equipped with crushing running roller 5 in the pivot, be equipped with a plurality of crushing pivot 3 rather than the cooperation crushing lime stone under crushing running roller 5 uniformly, crushing pivot 3 is connected with 2 inner wall rotations of box, the flexible 5 movements of crushing running roller that drive of first pneumatic cylinder 6, crushing running roller 5 smashes the lime stone in the crushing pivot 3 with the cooperation of crushing pivot 3, the lime stone after smashing passes crushing pivot 3 and falls.

The crushing pipe on the outer wall of the crushing roller 5 is consistent with the size of the crushing rotating shaft 3, the crushing precision is improved, the distance between the crushing rotating shafts 3 is smaller than 50mm, the size of crushed limestone is smaller than the distance between the crushing rotating shafts 3, and the crushing precision is guaranteed.

An inclined blanking plate 4 is arranged under the crushing rotating shaft 3, and crushed limestone falls on the blanking plate 4 to slide downwards. The included angle between the blanking plate 4 and the horizontal plane is 30 degrees, the falling speed of the crushed limestone is moderate, and the grinding efficiency is higher.

A grinding plate 9 is arranged right below the feed opening of the feed plate 4 and is used for receiving crushed limestone which slides down from the feed plate 4. The top of lapping plate 9 is inside sunken arc, the lime stone after the storage crushing that can be better. The bottom of the blanking plate 4 is provided with a second hydraulic cylinder 7 in a rotating mode close to the grinding plate 9, the free end of a piston rod of the second hydraulic cylinder 7 is fixedly connected with the base of the motor 8, a grinding ball is fixedly connected onto an output shaft of the motor 8, the second hydraulic cylinder 7 stretches and retracts, and the motor 8 rotates, so that the grinding ball grinds the crushed limestone on the grinding plate 9.

Grinding plate 9 rotates with 2 inner walls of box to be connected, 9 bottom centers of grinding plate are through the third pneumatic cylinder 10 of slope and 2 lateral walls fixed connection of box of grinding plate 9 below, and third pneumatic cylinder 10 stretches out and draws back, drives grinding plate 9 and rotates, can pour out the lime stone after grinding automatically.

The operation process of the pulverizer comprises the following steps:

firstly, pouring limestone into a box body 2 from a feeding port 1, then, telescopically driving a crushing roller 5 to move by a first hydraulic cylinder 6, crushing the limestone on a crushing rotating shaft 3 by matching the crushing roller 5 with the crushing rotating shaft 3, enabling the crushed limestone to pass through the crushing rotating shaft 3 to fall, and enabling the crushed limestone to fall onto a blanking plate 4 to slide down and fall onto a grinding plate 9; then the second hydraulic cylinder 7 is extended and contracted, and the motor 8 rotates, so that the grinding balls grind the crushed limestone on the grinding plate 9; and finally, the third hydraulic cylinder 10 stretches out and draws back to drive the grinding plate 9 to rotate, so that ground limestone can be automatically poured out, and the ground limestone flows out through the discharge hole 12.

It should be noted that the above embodiments are only for illustrating the present invention, but the present invention is not limited to the above embodiments, and any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention fall within the protection scope of the present invention.

Claims

1. A limestone crusher for cement production, comprising a box (2) provided with a plurality of legs (13) at the bottom, characterized in that: the top of the box body (2) is provided with a feeding port (1), the bottom of the box body (2) is provided with a discharging port (12), the upper part of the same side wall of the box body (2) is provided with a pair of first hydraulic cylinders (6), the free ends of the first hydraulic cylinders (6) penetrate through the opening of the side wall of the box body (2) and extend into the box body (2), the joint of the cylinder barrel of the first hydraulic cylinder (6) and the piston rod is fixed on the side wall of the box body (2), the free ends of the piston rods of the two first hydraulic cylinders (6) are connected through a rotating shaft, the rotating shaft is provided with a crushing roller (5), a plurality of crushing rotating shafts (3) matched with the crushing roller (5) are uniformly arranged under the crushing roller (5), and the crushing rotating shafts (3) are rotatably connected with the inner wall of the box body (2);

an inclined blanking plate (4) is arranged right below the crushing rotating shaft (3), a grinding plate (9) is arranged right below a blanking opening of the blanking plate (4), the grinding plate (9) is rotatably connected with the inner wall of the box body (2), a second hydraulic cylinder (7) is rotatably arranged at the position, close to the grinding plate (9), of the bottom of the blanking plate (4), the free end of a piston rod of the second hydraulic cylinder (7) is fixedly connected with a base of a motor (8), and a grinding ball is fixedly connected to an output shaft of the motor (8);

the center of the bottom of the grinding plate (9) is fixedly connected with the side wall of the box body (2) below the grinding plate (9) through an inclined third hydraulic cylinder (10).

2. Limestone pulverizer for cement production according to claim 1, characterized in that: the size of the crushing pipe on the outer wall of the crushing roller (5) is consistent with that of the crushing rotating shaft (3), and the distance between the crushing rotating shafts (3) is less than 50 mm.

3. Limestone pulverizer for cement production according to claim 1, characterized in that: and the included angle between the blanking plate (4) and the horizontal plane is 30 degrees.

4. Limestone pulverizer for cement production according to claim 1, characterized in that: the top of the grinding plate (9) is in an inward concave arc shape.

5. Limestone pulverizer for cement production according to claim 1, characterized in that: and a gray cast iron base (11) is fixedly arranged at the bottom of the supporting leg (13).

6. Limestone pulverizer for cement production according to claim 1, characterized in that: the feeding port (1) is funnel-shaped, and the size of the bottom of the feeding port (1) is consistent with that of the top of the box body (2).

7. Limestone pulverizer for cement production according to claim 1, characterized in that: the discharge port (12) is arranged in the center of the bottom of the box body (2), the discharge port (12) is in an inverted funnel shape, and the size of the bottom of the discharge port (12) is smaller than that of the bottom of the box body (2).