CN213825100U

CN213825100U - A hierarchical reducing mechanism for limestone production

Info

Publication number: CN213825100U
Application number: CN202022135036.4U
Authority: CN
Inventors: 闫浩
Original assignee: Anhui Hengjin Mining Co ltd
Current assignee: Anhui Hengjin Mining Co ltd
Priority date: 2020-09-25
Filing date: 2020-09-25
Publication date: 2021-07-30
Anticipated expiration: 2030-09-25

Abstract

The utility model discloses a hierarchical reducing mechanism for limestone production relates to building stones field of handling, including quick-witted case, first rubbing crusher and second rubbing crusher, quick-witted incasement is equipped with first rubbing crusher and second rubbing crusher, first rubbing crusher top is equipped with feed inlet and feed back mouth, first rubbing crusher below is equipped with first sieve and second sieve, the bottom department of first sieve is equipped with screw conveyer, screw conveyer extends to the feed back mouth, the second rubbing crusher is located the bottom of second sieve. Fixed ring shape sieve when having replaced the primary crushing with first sieve that can vibrate, the sieve shake has reduced the condition of limestone card on the sieve, and the limestone that first sieve did not pass through falls into the opening of screw conveyer bottom in, carries to the feed back mouth through the conveyer, hits the bits of broken glass once more, has increased ejection of compact granule degree of consistency, has reduced the tup wearing and tearing that repeated crushing leads to, improves tup life.

Description

A hierarchical reducing mechanism for limestone production

Technical Field

The utility model relates to a building stones field of handling, concretely relates to a hierarchical reducing mechanism for limestone production.

Background

The lime stone needs to carry out shredding at the in-process of production, and crushing equipment commonly used has hammer mill, and hammer mill is rotatory at kibbling in-process through rotor drive tup, strikes the lime stone of coming the material, and the lime stone bumps the baffle again and further smashes, because the outside of rotor can be equipped with annular sieve, at the in-process of striking, extrudes the lime stone and discharges in the notch of sieve to realize the screening.

If the lime stone is once only poured into too much, the sieve comes too late to discharge the lime stone that has hit garrulous, the condition of repeated hammering appears for the wearing and tearing of tup, and the lime stone of card on the sieve also can block the rotor sometimes, influences production, so generally can enlarge the aperture of sieve in the use for improve the ejection of compact rate, reduce the tup wearing and tearing and block the probability of rotor. But this can make the lime stone particle size of ejection of compact inhomogeneous, influence crushing efficiency, the consumption that has increaseed the machine.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a hierarchical reducing mechanism for limestone production to solve the problem of mentioning in the above-mentioned background art.

The utility model provides a hierarchical reducing mechanism for limestone production, includes quick-witted case, first rubbing crusher and second rubbing crusher, quick-witted incasement is equipped with first rubbing crusher and second rubbing crusher, first rubbing crusher top is equipped with feed inlet and feed back mouth, first rubbing crusher below is equipped with first sieve and second sieve, first sieve and second sieve fixed connection, the bottom department of first sieve is equipped with screw conveyer, screw conveyer extends to the feed back mouth, the second rubbing crusher is located the bottom of second sieve, the second rubbing crusher outside is equipped with the ring baffle, the bottom of ring baffle is equipped with a plurality of blanking notches, be equipped with the vibration exciter between first sieve and the second sieve, first sieve passes through spring coupling with the second sieve at quick-witted incasement.

Preferably, the machine case is internally provided with a left baffle, a right baffle and a partition plate, the first pulverizer is positioned between the left baffle and the right baffle, and the bottom of the machine case inclines to the lower right and is provided with a discharge hole.

Preferably, the feed inlet is located between the right baffle and the partition plate, and the feed back port is located between the left baffle and the partition plate.

Preferably, the shell of the screw conveyor is fixedly connected with the left baffle, an opening facing the right side is formed in the bottom of the shell, a material guide plate is arranged outside the opening, and the first sieve plate extends into the material guide plate.

Preferably, the second screen deck has a screen aperture diameter smaller than the screen aperture diameter of the first screen deck.

The utility model has the advantages that:

in order to solve repeated hammering and accord with the lime stone of smashing the particle size, the solid fixed ring shape sieve when having replaced the primary crushing with the first sieve that can vibrate, the sieve shake has reduced the condition of lime stone card on the sieve, hits garrulous lime stone granule and falls into the second sieve through first sieve on, further screens, accords with the lime stone of size standard, and the sieve mesh through the second sieve is discharged.

Limestone which does not pass through the first sieve plate falls into the opening at the bottom of the screw conveyor and is conveyed to the feed back port through the conveyor, so that the limestone is crushed again, repeated crushing is avoided, limestone which does not pass through the second sieve plate falls into the second crusher to be crushed again, particles of the lime block at the moment are smaller, the limestone which is not crushed again is not easy to be blocked in the annular baffle, and the limestone which is crushed again is discharged through the blanking notch.

Through screening and smashing many times, reduced repeated smashing, increased ejection of compact granule degree of consistency, improved production efficiency, reduced the tup wearing and tearing that repeated smashing leads to, improve tup life.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of a part of the structure of the present invention.

In the figure: 1-case, 1 a-feed inlet, 1 b-feed back, 1 c-discharge outlet, 2-first pulverizer, 3-second pulverizer, 4-first sieve plate, 5-second sieve plate, 6-screw conveyor, 61-shell, 61 a-opening, 62-guide plate, 7-annular baffle, 71-blanking notch, 8-left baffle, 9-right baffle, 10-baffle, 11-vibration exciter and 12-spring.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

As shown in fig. 1 to 2, a classifying and crushing apparatus for limestone production includes a casing 1, a first crusher 2 and a second crusher 3, a first crusher 2 and a second crusher 3 are arranged in the case 1, a feed inlet 1a and a feed back port 1b are arranged above the first crusher 2, a first sieve plate 4 and a second sieve plate 5 are arranged below the first pulverizer 2, the first sieve plate 4 is fixedly connected with the second sieve plate 5, a screw conveyor 6 is arranged at the bottom end of the first sieve plate 4, the screw conveyor 6 extends to the feed back port 1b, the second crusher 3 is positioned at the bottom end of the second sieve plate 5, an annular baffle 7 is arranged outside the second crusher 3, the bottom of annular baffle 7 is equipped with a plurality of blanking notches 71, be equipped with vibration exciter 11 between first sieve 4 and the second sieve 5, first sieve 4 passes through spring 12 with second sieve 5 and connects in quick-witted case 1. The first sieve 4 of vibration has reduced the condition of limestone card on the sieve, and the limestone that is not smashed completely is screened to first sieve 4, then carries to feed back mouth 1b by screw conveyer 6 and smashes again, has avoided the problem of tup accelerated wear that the repeated crushing of kibbling limestone brought, has also reduced the condition of sieve card material simultaneously.

In this embodiment, a left baffle 8, a right baffle 9 and a partition plate 10 are arranged in the case 1, the first pulverizer 2 is located between the left baffle 8 and the right baffle 9, and the bottom of the case 1 is inclined to the lower right and is provided with a discharge hole 1 c. Left baffle 8 increases the lime stone striking probability with right baffle 9, improves crushing efficiency.

In this embodiment, the feeding opening 1a is located between the right baffle 9 and the partition plate 10, and the feeding back opening 1b is located between the left baffle 8 and the partition plate 10.

In this embodiment, the housing 61 of the screw conveyor 6 is fixedly connected to the left baffle 8, an opening 61a facing to the right is formed in the bottom of the housing 61, a material guiding plate 62 is disposed outside the opening 61a, and the first screen plate 4 extends into the material guiding plate 62. The material guide plate 62 is used for concentrating limestone at the opening 61a, so that feeding by the screw conveyor is facilitated, and the stone materials on the screen plates can be reduced from falling into the second pulverizer 3 when the first screen plate 4 extends into the material guide plate 62.

In this embodiment, the second screening deck 5 has a smaller screening diameter than the first screening deck 4.

The working process and the principle thereof are as follows:

when the device is used, limestone is poured from the feeding hole 1a, the limestone slides into the first pulverizer 2 along the partition plate 10, the first pulverizer 2 hammers the limestone, the struck limestone collides with the left baffle plate and the right baffle plate 9 and is further pulverized and falls on the limestone on the first sieve plate 4, the first sieve plate 4 is connected in the case 1 through the spring 12, so that the first sieve plate 4 starts high-frequency vibration with small left amplitude under the driving of the vibration exciter 11, the limestone smaller than the sieve meshes of the first sieve plate 4 falls on the second sieve plate 5, the rest limestone with larger size vibrates along the sieve plate, the limestone is guided by the guide plate 62 and accumulated to the opening 61a at the bottom of the screw conveyor 6, because the second sieve plate 5 extends into the guide plate 62, the limestone which does not accord with the size of secondary crushing is prevented from falling into the second pulverizer 3, the screw conveyor 6 of the first sieve plate 4 conveys the limestone to rise, when the limestone reaches the top feed back port 1b, the limestone slides down the left baffle 8 into the first crusher 2 and is crushed again.

On the lime stone that passes through from first sieve 4 fell into second sieve 5, and on the same reason, the vibrations of second sieve 5 made the lime stone that accords with standard size, directly fell into quick-witted case 1's bottom, because the slope of discharge gate 1c of quick-witted case 1 bottom, lime stone discharge machine case 1, the lime stone that fails to pass through second sieve 5 enters into second rubbing crusher 3 along second sieve 5 and carries out the regrinding. The pulverized limestone passes through the discharge slot 71 and is discharged through the discharge port 1 c.

Based on the above: fix the annular sieve when having replaced the primary crushing with first sieve 4 that can vibrate, the sieve shake has reduced the condition of limestone card on the sieve, hits garrulous limestone particles and falls into second sieve 5 through first sieve 4 on, further screens, accords with the limestone of size standard, discharges through the sieve mesh of second sieve 5.

Limestone which does not pass through the first sieve plate 4 falls into the opening 61a at the bottom of the screw conveyor 6 and is conveyed to the feed back port 1b through the conveyor to be crushed again, so that repeated crushing is avoided, limestone which does not pass through the second sieve plate 5 falls into the second crusher 3 to be crushed again, particles of lime blocks at the moment are small, the limestone is not easy to block in the annular baffle, and the crushed limestone is discharged through the blanking notch 71.

It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of the invention or which are equivalent to the scope of the invention are embraced by the invention.

Claims

1. The utility model provides a hierarchical reducing mechanism for limestone production which characterized in that: comprises a case (1), a first pulverizer (2) and a second pulverizer (3), wherein the case (1) is internally provided with the first pulverizer (2) and the second pulverizer (3), a feed inlet (1a) and a feed back port (1b) are arranged above the first pulverizer (2), a first sieve plate (4) and a second sieve plate (5) are arranged below the first pulverizer (2), the first sieve plate (4) is fixedly connected with the second sieve plate (5), a spiral conveyor (6) is arranged at the bottom end of the first sieve plate (4), the spiral conveyor (6) extends to the feed back port (1b), the second pulverizer (3) is positioned at the bottom end of the second sieve plate (5), an annular baffle (7) is arranged at the outer side of the second pulverizer (3), a plurality of blanking notches (71) are arranged at the bottom of the annular baffle (7), and a vibration exciter (11) is arranged between the first sieve plate (4) and the second sieve plate (5), the first sieve plate (4) and the second sieve plate (5) are connected in the case (1) through springs (12).

2. A classifying and crushing apparatus for limestone production as claimed in claim 1, wherein: be equipped with left baffle (8), right baffle (9) and baffle (10) in quick-witted case (1), first rubbing crusher (2) are located between left baffle (8) and right baffle (9), the bottom below slope to the right side of quick-witted case (1), and are equipped with discharge gate (1 c).

3. A classifying and crushing apparatus for limestone production as claimed in claim 2, wherein: feed inlet (1a) is located between right baffle (9) and baffle (10), feed back mouth (1b) is located between left baffle (8) and baffle (10).

4. A classifying and crushing apparatus for limestone production as claimed in claim 1, wherein: the shell (61) of the spiral conveyor (6) is fixedly connected with the left baffle (8), an opening (61a) towards the right side is formed in the bottom of the shell (61), a material guide plate (62) is arranged on the outer side of the opening (61a), and the first sieve plate (4) extends into the material guide plate (62).

5. A classifying and crushing apparatus for limestone production as claimed in claim 1, wherein: the diameter of the sieve holes of the second sieve plate (5) is smaller than that of the sieve holes of the first sieve plate (4).