CN212418648U

CN212418648U - Ore screening and grading plant is used in production of food level calcium carbonate

Info

Publication number: CN212418648U
Application number: CN202020876479.6U
Authority: CN
Inventors: 王群星
Original assignee: Yichang Dengcheng Calcium Carbonate Development Co ltd
Current assignee: Yichang Dengcheng Calcium Carbonate Development Co ltd
Priority date: 2020-05-22
Filing date: 2020-05-22
Publication date: 2021-01-29
Anticipated expiration: 2030-05-22

Abstract

The ore screening and grading device for food-grade calcium carbonate production comprises a plurality of screens, wherein the screens are all fixed in a screen fixing frame and are arranged in parallel, and the aperture of the screen on the upper layer in two adjacent screens is larger than that of the screen on the lower layer; the screen fixing frame is slidably arranged on the discharging bin and is obliquely and downwards arranged; a plurality of discharging channels are arranged in the discharging bin, and the discharging channels are used for conveying and guiding the screened materials; the vibration driving device is installed on the outer wall of the discharging bin and used for driving the screen fixing frame to move in a reciprocating mode. The utility model discloses can realize multistage screening, whole device simple structure, equipment low in manufacturing cost.

Description

Ore screening and grading plant is used in production of food level calcium carbonate

Technical Field

The utility model belongs to food level calcium carbonate production facility field, in particular to food level is ore screening and grading plant for calcium carbonate production.

Background

In the production process of food-grade calcium carbonate, large ores need to be crushed into small broken stones (also called small ores), and qualified small ores are screened out by a screening device. The existing screening device generally adopts a drum-type screening machine, only primary screening can be completed, the drum-type screening mechanism is complex in structure, and the manufacturing cost of equipment is high. Therefore, there is a need for a device that is simple in construction and capable of performing multiple screening stages.

Disclosure of Invention

In view of the technical problem that the background art exists, the utility model provides a food level is ore screening and grading plant for calcium carbonate production can realize multi-stage screening, whole device simple structure, and equipment low in manufacturing cost.

In order to solve the technical problem, the utility model discloses following technical scheme has been taken and has been realized:

the ore screening and grading device for food-grade calcium carbonate production comprises a plurality of screens, wherein the screens are all fixed in a screen fixing frame and are arranged in parallel, and the aperture of the screen on the upper layer in two adjacent screens is larger than that of the screen on the lower layer; the screen fixing frame is slidably arranged on the discharging bin and is obliquely and downwards arranged; a plurality of discharging channels are arranged in the discharging bin, and the discharging channels are used for conveying and guiding the screened materials; the vibration driving device is installed on the outer wall of the discharging bin and used for driving the screen fixing frame to move in a reciprocating mode.

In a preferred scheme, the vibration driving device is arranged at one end, inclined downwards, of the screen fixing frame and comprises a motor, the motor drives the eccentric rotating roller to rotate through a belt and a belt pulley, two ends of the eccentric rotating roller are fixed on a bottom plate through bearing seats, the bottom plate is connected with the outer wall of the discharging bin, and the motor is arranged on the bottom plate; the eccentric roller is used for driving the screen fixing frame to move in a reciprocating mode.

In a preferred scheme, a rotary drum support is arranged on the outer wall of the screen fixing frame, a rotary drum is mounted on the rotary shaft support, the rotary drum is parallel to the eccentric rotary roller, and the rotary drum is in contact connection with the eccentric rotary roller.

In the preferred scheme, the screen fixing frame is connected with the discharging bin through a sliding rail and a roller, the roller is arranged at the bottom edge of the screen fixing frame, and the sliding rail is arranged at the top edge of the screen fixing frame.

In a preferred scheme, the number of the screens is two, the two screens are an upper screen and a lower screen respectively, the lower ends of the upper screen and the lower screen are discharge ends, and the discharge end of the upper screen is longer than that of the lower screen; a first partition plate, a second partition plate and a third partition plate are arranged in the discharge bin, a first channel is formed between the first partition plate and the second partition plate, a second channel is formed between the second partition plate and the third partition plate, and the first channel is used for conveying materials which are not sieved off by the upper-layer sieve mesh; the second channel is used for conveying and guiding materials which are not screened out by the lower-layer screen; and a third channel is formed between the upper surface of the third partition plate and the lower-layer screen mesh and is used for conveying and guiding the materials screened by the lower-layer screen mesh.

In a preferable scheme, the bottoms of the first channel, the second channel and the third channel are provided with feed openings.

In a preferable scheme, the feed openings of the first channel and the second channel are positioned at the bottom of the discharge bin, and the feed opening of the third channel is positioned at the side part of the discharge bin.

In a preferable scheme, a baffle is arranged above the first channel, the baffle is arranged on the inner wall of the screen fixing frame, and the lower edge of the baffle is positioned in the middle of the inlet of the first channel.

This patent can reach following beneficial effect:

the ore after crushing is thrown into from the upper end of the screen, and the screen fixing frame is driven by the vibration driving device to move back and forth in the process of rolling down, so that the screening effect is improved. Every discharging channel corresponds defeated one kind of ore of leading, if the quantity of screen cloth is N, then discharging channel's number is N +1, is equipped with the clearance between the lower extreme of screen cloth and the screen cloth fixed frame inner wall, and every screen cloth lower extreme is used for discharging the ore that does not sieve and falls the screen cloth of lower floor from the screen cloth on upper strata, and multistage screening can be accomplished to this technical scheme. Among this technical scheme, if do not set up eccentric commentaries on classics roller, screen cloth fixed frame can the downward landing of direct slope, and the screen cloth fixed frame slope in this scheme sets up, as long as guarantee eccentric commentaries on classics roller and screen cloth fixed frame contact and be connected like this, eccentric commentaries on classics roller just can drive screen cloth fixed frame reciprocating motion at the pivoted in-process, does not adopt any link mechanism, and this design simple structure does benefit to and reduces the input cost.

Drawings

The invention will be further explained with reference to the following figures and examples:

FIG. 1 is a first three-dimensional structure diagram of the present invention;

FIG. 2 is an enlarged view of FIG. 1 at A;

FIG. 3 is a cross-sectional view of the present invention;

FIG. 4 is a second three-dimensional structural diagram of the present invention;

fig. 5 is a side view of the present invention.

In the figure: the device comprises a screen fixing frame 1, a discharging bin 2, a motor 3, an eccentric rotating roller 4, a bearing seat 5, a bottom plate 6, a rotating drum 7, a roller 8, an upper screen 91, a lower screen 92, a first partition plate 10, a second partition plate 11, a third partition plate 12, a first channel 13, a second channel 14, a third channel 15 and a baffle 16.

Detailed Description

A preferred scheme is as shown in fig. 1 to 5, the ore screening and classifying device for producing food grade calcium carbonate comprises a plurality of screens, wherein the screens are all fixed in a screen fixing frame 1 and are arranged in parallel, and the aperture of the screen on the upper layer in two adjacent screens is larger than that of the screen on the lower layer; the screen fixing frame 1 is slidably arranged on the discharging bin 2, and the screen fixing frame 1 is obliquely arranged downwards; a plurality of discharging channels are arranged in the discharging bin 2 and are used for conveying and guiding screened materials; the outer wall of the discharging bin 2 is provided with a vibration driving device which is used for driving the screen fixing frame 1 to reciprocate.

The ore after crushing is thrown into from the upper end of the screen, and the vibrating driving device drives the screen fixing frame 1 to move back and forth in the process of rolling down, so that the screening effect is improved. This technical scheme can accomplish multistage screening, and every discharging channel corresponds defeated one kind ore of leading, if the quantity of screen cloth is N, then discharging channel's number is N + 1. As shown in fig. 3, a gap is provided between the lower end of each screen for discharging unscreened ore and the inner wall of the screen fixing frame 1, and the ore passing through the screen holes may fall from the upper screen to the lower screen.

Furthermore, the vibration driving device is arranged at one end of the screen fixing frame 1 which is inclined downwards, the vibration driving device comprises a motor 3, the motor 3 drives an eccentric rotating roller 4 to rotate through a belt and a belt pulley, two ends of the eccentric rotating roller 4 are fixed on a bottom plate 6 through a bearing seat 5, the bottom plate 6 is connected with the outer wall of the discharging bin 2, and the motor 3 is arranged on the bottom plate 6; the eccentric roller 4 is used for driving the screen fixing frame 1 to reciprocate. In this technical scheme, if do not set up eccentric commentaries on classics roller 4, screen cloth fixed frame 1 can the downward landing of direct slope, and screen cloth fixed frame 1 slope in this scheme sets up, so long as guarantee that eccentric commentaries on classics roller 4 is connected with the contact of screen cloth fixed frame 1, and eccentric commentaries on classics roller 4 just can drive screen cloth fixed frame 1 reciprocating motion at the pivoted in-process, and this design simple structure does benefit to and reduces the input cost.

Further, the outer wall of the screen fixing frame 1 is provided with a rotary drum support, a rotary drum 7 is mounted on the rotary shaft support, the rotary drum 7 is arranged in parallel with the eccentric rotary roller 4, and the rotary drum 7 is in contact connection with the eccentric rotary roller 4. The rotating drum 7 is matched with the eccentric rotating roller 4 for use, so that the friction force in the rotating process of the eccentric rotating roller 4 can be reduced, and the stability of the operation of the equipment is improved.

Further, as shown in fig. 4, the screen fixing frame 1 is connected with the discharging bin 2 through a slide rail and a roller 8, the roller 8 is arranged at the bottom edge of the screen fixing frame 1, and the slide rail is arranged at the top edge of the screen fixing frame 1.

Further, as shown in fig. 3, the number of the screens is two, the two screens are an upper screen 91 and a lower screen 92, the lower ends of the upper screen 91 and the lower screen 92 are discharge ends, and the discharge end of the upper screen 91 is longer than the discharge end of the lower screen 92; a first partition plate 10, a second partition plate 11 and a third partition plate 12 are arranged in the discharge bin 2, a first channel 13 is formed between the first partition plate 10 and the second partition plate 11, a second channel 14 is formed between the second partition plate 11 and the third partition plate 12, and the first channel 13 is used for conveying and guiding materials which are not sieved out by the upper-layer sieve mesh 91; the second channel 14 is used for guiding the materials which are not sieved by the lower layer screen 92; a third channel 15 is formed between the upper surface of the third partition 12 and the lower screen 92, and the third channel 15 is used for guiding the material screened by the lower screen 92. The first partition plate 10, the second partition plate 11 and the third partition plate 12 are all obliquely arranged partition plates.

Further, the bottoms of the first channel 13, the second channel 14 and the third channel 15 are all provided with feed openings. Preferably, the feed openings of the first channel 13 and the second channel 14 may be shaped as funnel-shaped; the feed opening of the third channel 15 can extend beyond the outer wall of the outlet bin 2.

Further, the feed openings of the first channel 13 and the second channel 14 are positioned at the bottom of the discharging bin 2, and the feed opening of the third channel 15 is positioned at the side of the discharging bin 2.

Further, as shown in fig. 3, a baffle 16 is arranged above the first channel 13, the baffle 16 is arranged on the inner wall of the screen fixing frame 1, and the lower edge of the baffle 16 is positioned in the middle of the inlet of the first channel 13. Because screen cloth fixed frame 1 is reciprocating motion to upper screen cloth 91 will be big apart from the clearance of first passageway 13 entry, in order to guarantee that the ore can all enter into first passageway 13, consequently set up baffle 16, baffle 16 can separate the ore that upper screen cloth 91 was not sieved and keep off, makes the ore get into first passageway 13 smoothly, has also avoided the ore to drop the clearance department between screen cloth fixed frame 1 and the play feed bin 2 simultaneously.

The working principle of the whole device is as follows:

the ore after crushing is thrown into from the upper end of the screen, and the vibrating driving device drives the screen fixing frame 1 to move back and forth in the process of rolling down, so that the screening effect is improved. The unscreened ore from the upper screen 91 will be discharged from the first channel 13, the screened ore from the upper screen 91 will fall onto the lower screen 92, the unscreened ore from the lower screen 92 will be discharged from the second channel 14, and the screened ore from the lower screen 92 will fall onto the third partition 12, i.e. into the third channel 15. The whole process realizes multi-stage screening.

Claims

1. The utility model provides a production of food level calcium carbonate is with ore screening and grading plant, includes the screen cloth, its characterized in that: the screen cloth fixing frame (1) is characterized in that the screen cloth fixing frame (1) is provided with a plurality of screen cloths, the screen cloths are all fixed in the screen cloth fixing frame (1), the plurality of screen cloths are arranged in parallel, and the aperture of the screen cloth on the upper layer in two adjacent screen cloths is larger than that of the screen cloth on the lower layer; the screen fixing frame (1) is slidably arranged on the discharging bin (2), and the screen fixing frame (1) is obliquely and downwards arranged; a plurality of discharging channels are arranged in the discharging bin (2), and the discharging channels are used for conveying and guiding screened materials; the outer wall of the discharging bin (2) is provided with a vibration driving device, and the vibration driving device is used for driving the screen fixing frame (1) to move in a reciprocating manner.

2. The apparatus of claim 1, wherein the apparatus comprises: the vibration driving device is arranged at one end of the screen fixing frame (1) which is inclined downwards, the vibration driving device comprises a motor (3), the motor (3) drives an eccentric rotating roller (4) to rotate through a belt and a belt pulley, two ends of the eccentric rotating roller (4) are fixed on a bottom plate (6) through a bearing seat (5), the bottom plate (6) is connected with the outer wall of the discharging bin (2), and the motor (3) is arranged on the bottom plate (6); the eccentric roller (4) is used for driving the screen fixing frame (1) to move in a reciprocating mode.

3. The apparatus of claim 2 for screening and classifying ores for producing food grade calcium carbonate, wherein: the outer wall of the screen fixing frame (1) is provided with a rotary drum support, a rotary drum (7) is mounted on the rotary shaft support, the rotary drum (7) and the eccentric rotary roller (4) are arranged in parallel, and the rotary drum (7) is in contact connection with the eccentric rotary roller (4).

4. The apparatus of claim 3 for screening and classifying ores for producing food grade calcium carbonate, wherein: the screen fixing frame (1) is connected with the discharging bin (2) through a sliding rail and a roller (8), the roller (8) is arranged at the bottom edge of the screen fixing frame (1), and the sliding rail is arranged at the top edge of the screen fixing frame (1).

5. The apparatus of claim 1, wherein the apparatus comprises: the number of the screens is two, the two screens are an upper screen (91) and a lower screen (92), the lower ends of the upper screen (91) and the lower screen (92) are discharge ends, and the discharge end of the upper screen (91) is longer than that of the lower screen (92); a first partition plate (10), a second partition plate (11) and a third partition plate (12) are arranged in the discharging bin (2), a first channel (13) is formed between the first partition plate (10) and the second partition plate (11), a second channel (14) is formed between the second partition plate (11) and the third partition plate (12), and the first channel (13) is used for conveying materials which are not sieved out by the upper-layer screen mesh (91); the second channel (14) is used for conveying the unscreened materials of the lower screen (92); a third channel (15) is formed between the upper surface of the third clapboard (12) and the lower layer screen mesh (92), and the third channel (15) is used for conveying materials screened by the lower layer screen mesh (92).

6. The apparatus of claim 5 for screening and classifying ores for producing food grade calcium carbonate, wherein: and feed openings are formed at the bottoms of the first channel (13), the second channel (14) and the third channel (15).

7. The apparatus of claim 6 for screening and classifying ores for producing food grade calcium carbonate, wherein: the feed openings of the first channel (13) and the second channel (14) are positioned at the bottom of the discharge bin (2), and the feed opening of the third channel (15) is positioned at the side part of the discharge bin (2).

8. The apparatus of claim 6 or 7, wherein the apparatus comprises: a baffle (16) is arranged above the first channel (13), the baffle (16) is arranged on the inner wall of the screen fixing frame (1), and the lower edge of the baffle (16) is positioned in the middle of the inlet of the first channel (13).