CN216520956U - Sedimentation flocculant conveying device - Google Patents

Abstract

In order to solve the problems that the flow meter is difficult to clean in the process of preparing the sedimentation flocculant and the like, the utility model provides a sedimentation flocculant conveying device, which comprises a plurality of groups of conveying devices and backwashing devices, wherein each group of conveying devices consists of a screw pump, a sedimentation tank and a conveying pipe connected between the screw pump and the sedimentation tank, a second switch valve, an electromagnetic flowmeter and a flow regulating valve are sequentially arranged on the material conveying pipe from the outlet of the screw pump to the direction between the settling tanks, the backwashing device comprises a high-pressure gas storage tank and a gas supply main pipe connected between the gas outlet of the high-pressure gas storage tank and a plurality of groups of sedimentation flocculant preparation production devices, a plurality of gas supply branch pipes are arranged on the gas supply main pipe and are respectively connected with a plurality of groups of material conveying pipes, and the air supply branch pipes are connected between the second switch valve and the electromagnetic flow meter, each group of air supply branch pipes is provided with a first switch valve, and in addition, the air supply main pipe at the air outlet of the high-pressure air storage tank is provided with a main switch valve.

Description

Sedimentation flocculant conveying device

Technical Field

The utility model relates to the technical field of alumina production, in particular to a sedimentation flocculant conveying device.

Background

Taking an alumina production process and a sedimentation flocculant preparation system as an example, the qualified flocculant is prepared, and the prepared flocculant is directly fed into a discharge barrel of a sedimentation tank through a flow meter by a screw pump and is directly mixed with slurry, so that the production capacity of the sedimentation tank is improved, and the production process index is prevented from being influenced by a turbidity running phenomenon.

The run-out refers to that the overflow suspended matters of the settling tank seriously exceed the index requirement range and the clarity is poor.

The main characteristics are as follows: the floating matter is seriously deviated from the index requirement, and the supernatant layer disappears.

The reasons for this are: (1) the accumulated mud is serious, and the bottom flow is blocked; (2) the granularity of the red mud is too fine; (3) the feeding amount of the mud is large, and a mud layer rises; (4) the washing liquid amount is small, and the concentration of diluted ore pulp is high; (5) the feeding amount is too large; (6) the flocculant addition amount is small (the flowmeter displays larger and smaller actually).

The treatment scheme is as follows: (1) enlarging the bottom flow, and poking the bottom flow by using high-pressure water back flushing; (2) adjusting the granularity of ore grinding; (3) properly increasing the addition amount of the flocculating agent and the sludge discharge amount; (4) adjusting the feeding amount of washing liquid, and reducing the concentration of diluted ore pulp; (5) properly adjusting the feeding amount; (6) confirming the accuracy of the flowmeter and increasing the flocculating agent amount.

Therefore, the flocculant flowmeter plays a crucial role in the alumina production process, so the accuracy of the flocculant flowmeter must be ensured, the existing cleaning mode is to detach the electromagnetic flowmeter for cleaning and then mount the electromagnetic flowmeter, the cleaning and maintenance efficiency is low, and the leakage of process liquid is very easy to cause damage to field operators in the detaching process.

Disclosure of Invention

In order to solve the problems, the utility model provides a sedimentation flocculant conveying device, which adopts the following technical scheme:

the utility model provides a sedimentation flocculating agent conveyor, its characterized in that includes multiunit conveyor, anti-belt cleaning device, and every group conveyor comprises screw pump, subsider and the conveying pipeline of connecting between the two, from the screw pump export on the conveying pipeline to the direction between the subsider has set gradually second ooff valve, electromagnetic flowmeter and flow control valve, anti-belt cleaning device includes high pressure gas holder, connects the air feed person in charge between high pressure gas holder gas outlet and multiunit sedimentation flocculating agent preparation apparatus for producing, the air feed is responsible for and is provided with a plurality of air feed branch pipes and links to each other with the multiunit conveying pipeline respectively to air feed branch connects between second ooff valve and electromagnetic flowmeter, all is provided with first ooff valve on every group air feed branch pipe, and in addition, the air feed person in charge of high pressure gas holder gas outlet department is provided with the master switch valve.

Preferably, a filter is arranged between the switching main valve and the air outlet of the high-pressure air storage tank.

Preferably, the main switch valve, the second switch valve, the flow regulating valve and the first switch valve are all solenoid valves.

The utility model has the beneficial effects that: can carry out quick clearance, drying to the electromagnetic flow meter through high-pressure air, need not to dismantle the flowmeter, wash the flow timing moreover, through opening and closing of each ooff valve, the multiunit subsides each other not influence between the flocculating agent conveyor, avoids wasing the flow timing and causes the influence to other production lines.

Drawings

FIG. 1 is a schematic view of the structure of the present invention

The device comprises a high-pressure gas storage tank 1, a gas supply main pipe 2, a filter 3, a main switch valve 4, a gas supply branch pipe 5, a first switch valve 6, a screw pump 7, a material conveying pipe 8, a settling tank 9, a second switch valve 10, an electromagnetic flowmeter 11 and a flow regulating valve 12.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description of the present invention, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

The conveying device for the sedimentation flocculant shown in fig. 1 mainly comprises three groups of conveying devices and a backwashing device connected with the conveying devices, wherein each group of conveying devices consists of a screw pump 7, a conveying pipe 8 and a sedimentation tank 9 which are sequentially connected, the conveying pipe 8 is sequentially provided with a second switch valve 10, an electromagnetic flowmeter 11 and a flow regulating valve 12 in the flowing direction of the flocculant, and the flocculant enters a lower charging barrel of the sedimentation tank 9 through the screw pump 7, the second switch valve 10, the electromagnetic flowmeter 11 and the flow regulating valve 12 and is mixed with slurry; the anti-belt cleaning device is by high pressure gas holder 1, the air feed is responsible for 2 and air feed branch pipe 5 and is constituteed, high pressure gas holder 1 is by the high-pressure gas station air feed, the air feed is responsible for 2 and links to each other with 1 gas outlet of high pressure gas holder, the air feed is responsible for 2 and has set gradually filter 3 and switch main valve 4 along the gas flow direction, air feed branch pipe 5 is provided with three groups, link to each other with three material conveying pipelines 8 of group respectively, and air feed branch pipe 5 one end is responsible for 2 with the air feed that is located 4 gas outlets one side of switch main valve, the air feed branch pipe other end is then connected on the material conveying pipeline between second ooff valve 10 and electromagnetic flowmeter 11.

The working principle of the device is as follows: when the electromagnetic flowmeter 11 on a certain set of conveying pipeline 8 needs to be cleaned, the first switch valves 6 on the other two sets of gas supply branch pipes 5 and the second switch valves 10 on the set of conveying pipelines 8 are firstly closed, the flow regulating valves 12 on the set of conveying pipelines 8 are opened, the main switch valve 4 is finally opened, the electromagnetic flowmeter 11 is washed by high-pressure gas in the high-pressure gas storage tank 1 and is sprayed out through the flow regulating valves 12, the high-pressure air consumption can be regulated by the flow regulating valves 12, the cleaning effect is improved, and the cost is reduced.

The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications can be made without departing from the principles of the utility model and these modifications are to be considered within the scope of the utility model.

Claims (3)

1. The utility model provides a sedimentation flocculating agent conveyor, its characterized in that includes multiunit conveyor, anti-belt cleaning device, and every group conveyor comprises screw pump, subsider and the conveying pipeline of connecting between the two, from the screw pump export on the conveying pipeline to the direction between the subsider has set gradually second ooff valve, electromagnetic flowmeter and flow control valve, anti-belt cleaning device includes high pressure gas holder, connects the air feed person in charge between high pressure gas holder gas outlet and multiunit sedimentation flocculating agent preparation apparatus for producing, the air feed is responsible for and is provided with a plurality of air feed branch pipes and links to each other with the multiunit conveying pipeline respectively to air feed branch connects between second ooff valve and electromagnetic flowmeter, all is provided with first ooff valve on every group air feed branch pipe, and in addition, the air feed person in charge of high pressure gas holder gas outlet department is provided with the master switch valve.

2. The flocculant conveying device according to claim 1, wherein a filter is arranged between the main on-off valve and an air outlet of the high-pressure air storage tank.

3. The sedimentation flocculant conveying apparatus according to claim 1, wherein the master switch valve, the second switch valve, the flow regulating valve, and the first switch valve are all solenoid valves.

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