CN213855687U

CN213855687U - Aluminum hydroxide scab removing device

Info

Publication number: CN213855687U
Application number: CN202021923614.4U
Authority: CN
Inventors: 曹金龙; 申文慧; 张继伟; 池清泉; 张向南; 杜金岭; 李兴阳
Original assignee: Chinalco Mining Corp
Current assignee: Chinalco Mining Corp
Priority date: 2020-09-04
Filing date: 2020-09-04
Publication date: 2021-08-03
Anticipated expiration: 2030-09-04

Abstract

The utility model discloses an aluminum hydroxide scar removing device, which comprises a screen box shell, wherein the top of the screen box shell is provided with an inlet pipe, one side of the bottom of the screen box shell is provided with a discharging pipe, one side of the screen box shell is provided with an overflow pipe and a movable door, channel steel is arranged around the inner cavity of the bottom of the screen box shell, the channel steel is provided with a screening device, and the bottom surface of the screen box shell inclines towards one side of the discharging pipe; the aluminum hydroxide scar removing device can effectively remove large particle scars, the screen is convenient to detach and replace, the occupied space is small, the structure is simple, the work is reliable, the installation, the operation and the maintenance are convenient, and the aluminum hydroxide scar removing device is suitable for popularization and use.

Description

Aluminum hydroxide scab removing device

Technical Field

The utility model relates to a technical field is got rid of to the scab, especially relates to an aluminium hydroxide scab remove device.

Background

At present, most of decomposition technologies adopted by the Bayer process for producing alumina are seed crystal decomposition technologies, main equipment is equipment such as a paddle stirring type decomposition tank and a cyclone classifier, and due to the following problems, the aluminum hydroxide slurry prepared in the process contains a small amount of scar particles with the diameter exceeding the standard, so that the product quality is influenced.

1. In the bottom and side wall of the seed precipitation tank, there are dead stirring areas or areas with weak stirring capability, and the aluminum hydroxide deposition and scab formation can occur after long-term operation.

2. Due to the continuous reduction of the ore quality, the content of organic matters and oxalate in the system is continuously increased, so that the scab generation speed is accelerated.

3. The discharge chute for various materials running in the decomposition area is still returned to the decomposition chute, and scabs in the discharge chute can enter the product to influence the product quality.

The formation and the entry of impurities are reduced by fine control in the production process, but the generation of aluminum hydroxide scabs is inevitable, and the traditional aluminum hydroxide scab removing method has high cost, inconvenient operation, poor effect and inconvenient use.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the above problem and providing a can be to the effective removal that the large granule scabbed, screen cloth convenient to detach and change, and occupation space is little, simple structure, reliable operation, the convenient aluminium hydroxide scab remove device of installation operation maintenance of being convenient for.

In order to achieve the above purpose, the technical scheme of the utility model is that: the utility model provides an aluminium hydroxide remove device that scars, includes sieve case casing, the top of sieve case casing is equipped with the inlet pipe, bottom one side of sieve case casing is equipped with the discharging pipe, one side of sieve case casing is equipped with overflow pipe and dodge gate, be equipped with the channel-section steel around the bottom inner chamber of sieve case casing, be equipped with the screening device on the channel-section steel, the bottom surface of sieve case casing inclines to discharging pipe one side.

Preferably, the screening device comprises a screen, upper-layer flat iron and lower-layer flat iron, the screen is arranged between the upper-layer flat iron and the lower-layer flat iron, the screen is detachably connected between the upper-layer flat iron and the lower-layer flat iron, and the lower-layer flat iron is detachably connected with the channel steel.

Preferably, the bottom of the feeding pipe is provided with a distributor.

Preferably, the overflow pipe is higher than the distributor in level.

Preferably, the upper layer flat iron and the lower layer flat iron are both provided with reinforcing ribs for increasing mechanical strength.

The utility model discloses an aluminum hydroxide scab removing device, which comprises a screen box shell, wherein the top of the screen box shell is provided with a feeding pipe, one side of the bottom of the screen box shell is provided with a discharging pipe, one side of the screen box shell is provided with an overflow pipe and a movable door, channel steel is arranged around the inner cavity of the bottom of the screen box shell, the channel steel is provided with a screening device, and the bottom surface of the screen box shell inclines to one side of the discharging pipe; the aluminum hydroxide scar removing device can effectively remove large particle scars, the screen is convenient to detach and replace, the occupied space is small, the structure is simple, the work is reliable, the installation, the operation and the maintenance are convenient, and the aluminum hydroxide scar removing device is suitable for popularization and use.

Drawings

Fig. 1 is a schematic structural view of the aluminum hydroxide scar removing device of the present invention.

Fig. 2 is a top view of the screening device of the present invention.

Fig. 3 is a left side view of the middle screening device of the present invention.

In the figure: 1. a sieve box housing; 2. an overflow pipe; 3. a feed pipe; 4. a distributing device; 5. a movable door; 6. a screening device; 61. screening a screen; 62. upper layer flat iron; 63. the lower layer of flat iron; 64. reinforcing ribs; 7. channel steel; 8. And (4) discharging the pipe.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. The attached drawings are simplified schematic diagrams, and merely illustrate the basic structure of the present invention in a schematic manner, and thus show only the components related to the present invention.

Referring to fig. 1-3, an aluminum hydroxide scar removing device comprises a screen box shell 1, wherein a feeding pipe 3 is arranged at the top of the screen box shell 1, a discharging pipe 8 is arranged at one side of the bottom of the screen box shell 1, an overflow pipe 2 and a movable door 5 are arranged at one side of the screen box shell 1, channel steel 7 is arranged around an inner cavity at the bottom of the screen box shell 1, a screening device 6 is arranged on the channel steel 7, the bottom surface of the screen box shell 1 inclines towards one side of the discharging pipe 8, the screening device 6 comprises a screen 61, upper-layer flat iron 62 and lower-layer flat iron 63, the screen 61 is arranged between the upper-layer flat iron 62 and the lower-layer flat iron 63, the screen 61 is detachably connected between the upper-layer flat iron 62 and the lower-layer flat iron 63 through bolts, the lower-layer flat iron 63 is detachably connected with the channel steel 7, a distributing device 4 is arranged at the bottom of the feeding pipe 3, and the overflow pipe 2 is higher than the distributing device 4 in horizontal height, and reinforcing ribs 64 for increasing the mechanical strength are arranged on the upper-layer flat iron 62 and the lower-layer flat iron 63.

The screening device 6 adopts a flat screen type design, so that large aluminum hydroxide scabs are discharged from the upper part of the screen 61 or manually cleaned; the aluminium hydroxide of qualified granularity sees through screen cloth 61 and falls into bottom chute pipeline, gets into the slurry groove, and the rethread pumping is sent to next process, and screening device 6 adopts detachable movable steel frame construction subassembly, places in sieve case casing 1, and the coming material of screening device 6 top plays even cloth and the purpose that alleviates the ground paste impact force through distributor 4 of inlet pipe 3 below, extension screen cloth 61 life when improving the cloth homogeneity, one side of sieve case casing 1 is equipped with overflow pipe 2, reaches drainage material to other grooves under the accident situation, avoids taking place the mesh of emerging the accident, and sieve case casing 1 opposite side installation dodge gate 5 is convenient for clear up screen cloth 61 scab or change screening device 6, sieve case casing 1 bottom designs into the inclined plane, and the low side ejection of compact ensures that the material is not sedimentary.

This novel aluminium hydroxide is scarred remove device when using, the aluminium hydroxide material gets into in sieve case casing 1 and through the even cloth of distributing device 4 from inlet pipe 3, overflow pipe 2 prevents to overflow, and when the material fell to screening device 6 on, accessible screen cloth 61 filtering large granule was scarred, guarantees product quality, opens dodge gate 5 and clears away the scab that filters out or change screening device 6 again, screening device 6 can dismantle, and screen cloth 61 also can dismantle between upper band iron 62 and lower floor's band iron 63, convenience simple to use.

The utility model discloses an aluminium hydroxide scaling remove device can be to the effective removal that the large granule was scarred, screen cloth convenient to detach and change, and occupation space is little, simple structure, reliable operation, and the installation operation maintenance of being convenient for is convenient for.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims

1. The utility model provides an aluminium hydroxide remove device that scars, includes sieve case casing (1), the top of sieve case casing (1) is equipped with inlet pipe (3), bottom one side of sieve case casing (1) is equipped with discharging pipe (8), its characterized in that: one side of sieve case casing (1) is equipped with overflow pipe (2) and dodge gate (5), be equipped with channel-section steel (7) around the bottom inner chamber of sieve case casing (1), be equipped with on channel-section steel (7) and screen out device (6), the bottom surface of sieve case casing (1) inclines to discharging pipe (8) one side.

2. The aluminum hydroxide scar removing device according to claim 1, characterized in that: screening device (6) include screen cloth (61), upper band iron (62) and lower floor band iron (63), screen cloth (61) are established between upper band iron (62) and lower floor band iron (63), screen cloth (61) can dismantle between upper band iron (62) and lower floor band iron (63) and be connected, lower floor band iron (63) can dismantle with channel-section steel (7) and be connected.

3. The aluminum hydroxide scar removing device according to claim 1, characterized in that: the bottom of the feeding pipe (3) is provided with a distributor (4).

4. The aluminum hydroxide scar removing device according to claim 1, characterized in that: the horizontal height of the overflow pipe (2) is higher than that of the distributing device (4).

5. The aluminum hydroxide scar removing device according to claim 2, characterized in that: and reinforcing ribs (64) for increasing the mechanical strength are arranged on the upper layer flat iron (62) and the lower layer flat iron (63).