CN213611961U

CN213611961U - A coarse and fine-grained shaker feeding and classifying device

Info

Publication number: CN213611961U
Application number: CN202022647962.XU
Authority: CN
Inventors: 郑其方; 刘殿文; 申培伦; 彭蓉; 苏超; 李江丽
Original assignee: Kunming University of Science and Technology
Current assignee: Kunming University of Science and Technology
Priority date: 2020-11-16
Filing date: 2020-11-16
Publication date: 2021-07-06
Anticipated expiration: 2030-11-16

Abstract

The utility model discloses a ore feeding and classifying device for a coarse and fine-grained shaker, which comprises a feeding pipe, a collecting box, a coarse-grained discharging pipe, a backflushing water pipe, and a fine-grained discharging pipe; One end is connected to the silo, the other end of the feeding pipe extends into the collecting box, the collecting box is a box without a cover, the fine-grained discharge pipe is connected with the upper side of the collecting box, and the coarse-grained discharge pipe The lower side of the collection box is connected, one end of the backflush water pipe is connected to the bottom of one side of the collection box, the other end of the backflush water pipe is connected to the external water source, the backflush water pipe mouth is located at the bottom of one side of the collection box, and the water flow enters from the side The box body forms turbulent flow, which is conducive to the loose classification of the ore pulp in the collecting box, and prevents the coarse-grained ore from being flushed directly into the fine-grained discharge pipe by the backwash water; the grading device of the utility model has a simple structure and a small footprint. , The bottom of the box is provided with backwash water to avoid the entrainment of fine-grained ore in the coarse-grained ore, reducing the sorting efficiency of the shaker, and the classification effect is better.

Description

Thick and thin particle size table feeding and classifying device

Technical Field

The utility model relates to a thick and thin grain size shaking table gives ore classification device belongs to mineral processing technique mining machinery equipment field.

Background

The classification is an important preparation operation in the mineral separation production of mines. In the table sorting operation, the mineral aggregate is classified into coarse fraction and fine fraction, and the mineral aggregate respectively enters a coarse fraction table and a fine fraction table for sorting, so that the table sorting efficiency can be greatly improved; in the ore grinding operation, qualified particle size can be prevented from entering an ore grinding machine for regrinding to improve the ore grinding efficiency when the pre-classification is carried out, and the over-grinding can be avoided to improve the particle size composition of ore materials when the control classification is carried out, so that the separation of the next operation is facilitated; for mines in areas with high clay content, the ore material can be deslimed by classification.

In the field production process, the commonly used grading equipment comprises a spiral classifier, a hydrocyclone, a vibrating screen, a mud removing hopper and the like. The hydrocyclone is classification equipment which is widely applied, has the advantages of high classification efficiency, low classification lower limit, no transmission part, stability, simple structure, small occupied area and the like, and is widely applied to industries such as mines, petroleum and water conservancy. The ore pulp enters the hydrocyclone at a high speed along the tangential direction from the pulp inlet pipe, the outer wall of the cylinder limits the ore pulp to do descending rotational flow movement from top to bottom, coarse particles in the outer rotational flow move along the direction of the outer wall of the centrifugal cylinder and are pushed by the fed ore pulp, and the ore particles move downwards along the outer wall of the cylinder to the underflow port to be discharged; the fine particles gradually enter the conical section downwards, the inner diameter is gradually reduced, the rotation speed of the ore pulp is gradually increased, the ore pulp is in eddy motion and becomes a low-pressure area when approaching to the axis, and the ore pulp rotates upwards and is discharged from the overflow port.

During the production process of the hydrocyclone, enough height difference and pressure intensity need to be fed into the hydrocyclone by a pump, the sand settling nozzle needs to be replaced periodically during management and maintenance, the production cost is high, coarse particles can run fine when the ore feeding pressure is too strong, fine particles can run coarse when the ore feeding pressure is insufficient, and field management is not easy to benefit. The device has simple structure, good thickness grading effect, no transmission device, no need of ore feeding pressure and low production cost.

Disclosure of Invention

Reselect shaking table coarse and fine grain level classification efficiency poor to the mine production scene, lead to shaking table separation efficiency poor, lie in overcoming the not enough of prior art, the utility model aims to provide a coarse and fine grain level shaking table gives ore deposit grading plant, the utility model discloses a set up the backwash water pipe, make fine grain level mineral get into the fine grain level under the impulsive force of backwash water and arrange the material pipe to realize the classification of coarse and fine grain level.

The technical scheme of the utility model is that: a coarse and fine particle grade table feeding and grading device comprises a feeding pipe, a material collecting box, a coarse particle grade discharging pipe, a back flushing pipe and a fine particle grade discharging pipe;

the one end intercommunication feed bin of feeder pipe, the other end of feeder pipe stretches into in the case that gathers materials, the case that gathers materials is uncovered box, the fine grain level is arranged the pipe and is communicate with the upper portion side of gathering the workbin, the coarse grain level is arranged the pipe and is communicated with the lower part side of gathering the workbin, the one end of backwash water pipe and one side bottom intercommunication of the case that gathers materials, the other end and the external water source of backwash water pipe are connected, the backwash water mouth of pipe is located a collection workbin side end, rivers get into the box by the side and form the turbulent flow, be favorable to the ore pulp loose classification in the case that gathers materials, the coarse grain level ore has been avoided being gone into the.

The material collecting box is arranged at a fixed position through a connecting piece.

The top of case that gathers materials still is equipped with the support, and the one end of support is connected with the top of case that gathers materials, and the other end of support is fixed with the feed pipe, and the feed pipe is unstable when preventing to give the ore deposit.

The connecting piece is connected with the fixed plate including a supporting plate and the fixed plate, the fixed plate is connected with the fixed position through a bolt, and the supporting plate is fixedly connected with the outer side face of the material collecting box.

The material collecting box is of a funnel-shaped structure and is formed by welding steel plates.

The feeding pipe is provided with a valve I, the fine-grain discharging pipe is provided with a valve II, the coarse-grain discharging pipe is provided with a valve III, and the backwashing water pipe is provided with a valve IV.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the utility model discloses simple structure, area is less, and the thickness is hierarchical effectual, does not have transmission, need not to give ore deposit pressure, low in production cost.

(2) The utility model discloses grading plant bottom of the box portion is provided with the backwash water pipe, avoids fine fraction ore smuggleing secretly to reduce shaking table sorting efficiency in coarse fraction ore, and grading effect is better.

(3) The utility model discloses recoil water pipe mouth is located work bin one side bottom, and rivers are got into the box body by the side and are formed the turbulent flow, are favorable to the ore pulp loose classification in the work bin, have avoided coarse fraction ore to be gone into fine fraction row's material pipe by the straight face of backwash water.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic structural view of the connecting member of the present invention;

the reference numbers in the figures: 1-feeding pipe, 2-collecting box, 3-coarse fraction discharging pipe, 4-back flushing pipe, 5-fine fraction discharging pipe and 6-bracket; 7-valve I; 8-valve II; 9-valve III; 10-valve IV; 11-a connector; 11-1 supporting plates and 11-2 fixing plates.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and embodiments, which are only used for describing the present invention in detail, and the scope of the present invention is not limited by the description.

As shown in fig. 1 and fig. 2, the device for classifying the coarse and fine particle size by using the shaking table according to the present embodiment includes a feeding pipe 1, a collecting box 2, a coarse particle size discharging pipe 3, a back flushing water pipe 4, and a fine particle size discharging pipe 5;

one end of the feeding pipe 1 is communicated with the storage bin, the other end of the feeding pipe 1 extends into one half position of the material collecting box 2, the material collecting box 2 is a box body with a uncovered funnel-shaped structure and is formed by welding steel plates, one end of the fine grain grade discharging pipe 5 is communicated with one side surface of the upper part of the material collecting box 2, and the fine fraction is arranged the pipe 5 and is located three quarters of the height of the case 2 that gathers materials, the other end that the pipe 5 was arranged to the fine fraction feeds through with the ore feeding groove of fine fraction shaking table operation, the one end that the pipe 3 was arranged to the coarse fraction feeds through with the lower part other side of the case 2 that gathers materials, the pipe 3 was arranged to the coarse fraction is located one quarter of the height of the case 2 that gathers materials, the other end that the pipe 3 was arranged to the coarse fraction feeds through with the ore feeding groove of coarse fraction shaking table operation, the one end of the water pipe 4 that backflushs is linked together with the one side bottom of the case 2 that gathers materials, the other end and the external water source of the water pipe 4 that backflush are.

The top of case 2 that gathers materials still is equipped with support 6, and the one end of support 6 is connected with the top of case 2 that gathers materials, and the other end of support 6 is fixed with feed pipe 1.

The connecting piece 11 comprises a supporting and protecting plate 11-1 and a fixing plate 11-2, the supporting and protecting plate 11-1 is connected with the fixing plate 11-2, the fixing plate 11-2 is connected with a fixing position through a bolt, and the supporting and protecting plate 11-1 is fixedly connected with the outer side face of the material collecting box 2.

The feeding pipe 1 is provided with a valve I7, the fine-grain discharging pipe 5 is provided with a valve II 8, the coarse-grain discharging pipe 3 is provided with a valve III 9, and the backwashing water pipe 4 is provided with a valve IV 10.

The working process of the utility model is as follows:

take a cassiterite table concentrator from a certain old Yunnan mine as an example:

the material collecting box 2 of the utility model is fixedly arranged in a plant selecting machine through a connecting piece 11, then a valve IV 10 on a backwashing water pipe 4 is opened to ensure that backwashing water overflows the lower part of the material collecting box 2, a valve III 9 on a coarse fraction discharging pipe 3 is opened, and the height of the liquid level of the backwashing water is controlled by adjusting the valve IV 10 according to the water quantity in the material collecting box 2; opening a valve II 8 on the fine-grained discharge pipe 5, adjusting a valve IV 10 according to the height of the backwash water liquid level, and controlling the height of the backwash water liquid level to be consistent with the height of the fine-grained discharge pipe 5; opening a valve I7 of a raw ore feeding pipe 1, allowing ore pulp to enter a grading device, properly adjusting a valve IV 10 of a back flushing pipe 4 and a valve III 9 of a coarse fraction discharging pipe 3 according to the height of the liquid level of the ore pulp, and controlling the liquid level of the ore pulp to be consistent with the height of a fine fraction discharging pipe 5; fine-grained mineral aggregate discharged from the fine-grained discharge pipe 5 is connected to a fine-grained table concentrator for reselection, and coarse-grained mineral aggregate discharged from the coarse-grained discharge pipe 3 is connected to a coarse-grained table concentrator for reselection.

Through the utility model relates to a thick and thin grade shaking table gives ore grading plant, has retrieved the old certain mine thick and thin grade cassiterite of Yunnan, obtains the final tin concentrate that final grade is 43.27%, 20.91% final tin middlings, and the effect is better.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A coarse and fine particle grade table feeding and grading device is characterized by comprising a feeding pipe (1), a material collecting box (2), a coarse particle grade discharging pipe (3), a back flushing pipe (4) and a fine particle grade discharging pipe (5);

the one end intercommunication feed bin of feed pipe (1), the other end of feed pipe (1) stretches into in case (2) that gathers materials, it is uncovered box to gather materials case (2), fine fraction is arranged row material pipe (5) and is gathered the upper portion side intercommunication of case (2), coarse fraction is arranged row material pipe (3) and is gathered the lower part side intercommunication of case (2), the one end of backwash water pipe (4) and one side bottom intercommunication of case (2) that gathers materials, the other end and the external water source of backwash water pipe (4) are connected, it installs in fixed position department through connecting piece (11) to gather materials case (2).

2. The apparatus of claim 1, wherein the table feed classifier comprises: the top of the material collecting box (2) is also provided with a support (6), one end of the support (6) is connected with the top of the material collecting box (2), and the other end of the support (6) fixes the feeding pipe (1).

3. The apparatus of claim 1, wherein the table feed classifier comprises: the connecting piece (11) comprises a supporting plate (11-1) and a fixing plate (11-2), the supporting plate (11-1) is connected with the fixing plate (11-2), the fixing plate (11-2) is connected with a fixed position through a bolt, and the supporting plate (11-1) is fixedly connected with the outer side face of the material collecting box (2).

4. The apparatus of claim 1, wherein the table feed classifier comprises: the material collecting box (2) is of a funnel-shaped structure.

5. The apparatus of claim 1, wherein the table feed classifier comprises: a valve I (7) is arranged on the feeding pipe (1), a valve II (8) is arranged on the fine-grain-level discharging pipe (5), a valve III (9) is arranged on the coarse-grain-level discharging pipe (3), and a valve IV (10) is arranged on the backwashing water pipe (4).