CN218686670U

CN218686670U - Filter pressing system of plate-and-frame filter press

Info

Publication number: CN218686670U
Application number: CN202222392723.3U
Authority: CN
Inventors: 李文福
Original assignee: Jinan Yuxing Chemical Co Ltd
Current assignee: Jinan Yuxing Chemical Co Ltd
Priority date: 2022-09-09
Filing date: 2022-09-09
Publication date: 2023-03-24
Anticipated expiration: 2032-09-09

Abstract

The utility model discloses a plate and frame filter press filter-pressing system, plate and frame filter press I, plate and frame filter press II, plate and frame filter press III, plate and frame filter press IV loop through the pipe connection, and plate and frame filter press all connects the sedimentation tank, and the sedimentation tank is connected with the circulation tank. The plate and frame filter presses can be used independently or used in series, each plate and frame filter press is connected with the sedimentation tank, and water filtered out by the medium pressure of the plate and frame filter presses overflows into the sedimentation tank. And water enters the circulating pool through the sedimentation effect of the sedimentation pool. The utility model discloses equipment is simple, through thickening the pipeline, changes high-pressure pump and low-pressure pump into frequency conversion high-pressure pump, sets up simultaneously and decides feed pressure and increase feeding time delay and have obvious effect to the filter cake solid content improvement, and slow feeding time is longer, and the effect is showing more.

Description

Filter pressing system of plate-and-frame filter press

Technical Field

The utility model relates to a filter-pressing system, concretely relates to plate and frame filter press filter-pressing system.

Background

The plate-frame filter press plays an important role in the treatment process of titanium white wastewater, and the solid content of red gypsum is improved after water is removed. However, the existing water treatment workshop has 6 semi-automatic partition plate filter presses, three low-pressure sludge dewatering pumps and one high-pressure sludge dewatering pump, and a blowing system is provided, the red mud solid content of the boss frame is still unsatisfactory, the plate frame adopts a feeding mode of firstly using the low-pressure pump and then using the high-pressure pump, the feeding pressure is unstable and cannot be delayed, along with the prolonging of the using time of the filter cloth, the water permeability of the filter cloth is weakened, the solid content is gradually reduced, and if the filter cloth is frequently replaced, the material cost is high.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a plate frame pressure filter press filtration system, this system improve the red mud solid content of boss frame, reduce red gypsum treatment cost.

The utility model discloses a realize through following technical scheme:

the utility model provides a plate and frame filter press filter-pressing system, plate and frame filter press I, plate and frame filter press II, plate and frame filter press III, plate and frame filter press IV loop through the pipe connection, and plate and frame filter press all connects the sedimentation tank, and the sedimentation tank is connected with the circulation pond. The plate and frame filter presses can be used independently or used in series, each plate and frame filter press is connected with the sedimentation tank, and water filtered out by the medium pressure of the plate and frame filter presses overflows into the sedimentation tank. And water enters the circulating pool through the sedimentation effect of the sedimentation pool.

Wherein, the plate-and-frame filter press I, the plate-and-frame filter press II, the plate-and-frame filter press III and the plate-and-frame filter press IV are provided with a variable-frequency high-pressure pump and a blowing device.

Wherein the diameter of the pipeline is 300mm. The diameter of an original pipeline is 159mm, the diameter is thin, the feeding pressure of the high-pressure pump is set to be 0.8MPa, the pressure can be unstable during squeezing, the use of a variable-frequency high-pressure pump cannot be met, and meanwhile, feeding delay cannot be matched. The diameter of the pipeline is changed into 300mm, meanwhile, the high-pressure pump is used for setting the feeding pressure to be 0.8MPa, the squeezing pressure to be 0.8MPa, the feeding delay to be 120s and the squeezing delay to be 120s-180s, and therefore the solid content of a squeezed filter cake is improved.

Wherein, the circulating tank is connected with the circulating pump. And the water in the circulating pool is secondarily utilized through a circulating pump.

The beneficial effects of the utility model

The utility model discloses equipment is simple, through thickening the pipeline, changes high-pressure pump and low-pressure pump into frequency conversion high-pressure pump, sets up simultaneously and decides feed pressure and increase the feeding time delay and improve to the filter cake solid content and have obvious effect, and slow feeding time is longer, and the effect is showing more.

Drawings

The present invention will be further explained with reference to the accompanying drawings.

FIG. 1 is a system diagram of the present invention;

in the figure: 1 plate-and-frame filter press I, 2 plate-and-frame filter press II, 3 plate-and-frame filter press III, 4 plate-and-frame filter press IV, 5 pipelines, 6, a blowing device, 7 sedimentation tank, 8 circulating tank, 9 variable-frequency high-pressure pump and 10 circulating pump.

Detailed Description

For ease of description, spatially relative terms, such as "upper," "lower," "left," "right," and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatial terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "lower" can encompass both an orientation of upper and lower. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

The attached figure 1 is the device diagram of the utility model.

The utility model provides a plate and frame filter press filter-pressing system, plate and frame filter press I1, plate and frame filter press II 2, plate and frame filter press III 3, plate and frame filter press IV 4 loop through pipeline 5 and connect, and plate and frame filter press all connects sedimentation tank 7, and sedimentation tank 7 is connected with circulation tank 8. The plate and frame filter presses can be used independently or used in series, each plate and frame filter press is connected with the sedimentation tank, and water filtered out by the medium pressure of the plate and frame filter presses overflows into the sedimentation tank. And water enters the circulating pool through the sedimentation effect of the sedimentation pool. The circulating pool 8 is connected with a circulating pump 10. And the water in the circulating pool is secondarily utilized through a circulating pump.

And the plate-and-frame filter press I1, the plate-and-frame filter press II 2, the plate-and-frame filter press III 3 and the plate-and-frame filter press IV 4 are provided with a variable-frequency high-pressure pump 9 and a blowing device 6.

The diameter of the pipe 5 is 300mm. The diameter of the pipeline is changed into 300mm, meanwhile, the high-pressure pump sets the feeding pressure to be 0.8MPa, the squeezing pressure to be 0.8MPa, the feeding delay time to be 120s, and the squeezing delay time to be 120s-180s, so that the solid content of a squeezed filter cake is improved.

The test process comprises the following steps:

1. and (2) firstly opening 1 low-pressure sludge dewatering pump of the old plate frame according to normal operation until the pressure is 0.25-0.3MPa, then opening 1 low-pressure sludge dewatering pump again until the pressure is 0.5-0.55MPa, stopping the operation of the two low-pressure sludge dewatering pumps, simultaneously opening 1 high-pressure sludge dewatering pump until the pressure is 0.8MPa, immediately stopping the high-pressure pump, sequentially blowing and pre-loosening the machine when a water outlet nozzle of the plate frame does not flow water, normally unloading the machine after the water is drained, and then taking an intermediate filter cake to detect the solid content of the intermediate filter cake.

2. The new plate frame simulates an old plate frame, the equipment parameters are changed into that the feeding pressure is changed into 0.8MPa, the squeezing pressure is 0.8MPa, air is blown, and then the solid content of the intermediate filter cake is detected.

3. The new frame was squeezed slowly for a longer time to see if there was an effect on the solids content in the simulated slow feed process.

TABLE 1

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Remarking: the group data of the new plate frame 1 is feeding pressure of 0.8MPa, squeezing pressure of 0.8MPa, feeding delay of 120s and squeezing delay of 120s. In a similar way, the new plate frame 2 groups of data feed pressure, the squeezing pressure and the feed delay are the same, and the squeezing delay is changed into 180s.

1. According to the table I, the average value of the solid contents of the old plate frame is 50.663%, the average value of the solid contents of the two groups of the new plate frames is 53.63%, through comparative analysis, the solid content of the new plate frame is improved by about 2% -3% compared with the solid content of the old plate frame, and therefore the slow feeding ratio and the fast feeding ratio can reach 0.8MPa, and the expected effect can be achieved by improving the solid contents.

2. According to table one, the average value of the first group of the new plate frames is 52.92%, the average value of the second group of data is 54.33%, the same ratio is improved by 1.41%, and the longer the slow feeding time is, the more remarkable the solid content is improved in the experimental process.

3. In the experimental process, the filter cake dropping condition is observed on site, and the filter cake forming is improved to some extent.

The above detailed description of the embodiments of the present invention is only used as an example, and the present invention is not limited to the above described embodiments, and the modifications of the present invention are also within the scope of the present invention.

Claims

1. The utility model provides a plate and frame filter press filter-pressing system which characterized in that, plate and frame filter press I (1), plate and frame filter press II (2), plate and frame filter press III (3), plate and frame filter press IV (4) loop through pipeline (5) and connect, and plate and frame filter press all connects sedimentation tank (7), and sedimentation tank (7) are connected with circulation pond (8).

2. The filter pressing system of a plate and frame filter press according to claim 1, wherein the plate and frame filter press I (1), the plate and frame filter press II (2), the plate and frame filter press III (3) and the plate and frame filter press IV (4) are provided with a variable frequency high pressure pump (9) and a blowing device (6).

3. A filter-press system according to claim 1, characterised in that the diameter of the pipe (5) is 300mm.

4. A filter-press system according to claim 1, characterised in that the circulation tank (8) is connected to a circulation pump (10).