CN110626645A - Filtrate storage tank for phosphating slag treatment system - Google Patents

Abstract

The invention discloses a filtrate storage tank for a phosphating slag treatment system. The upper end of the filtrate tank body is provided with a liquid inlet, and the lower end of the filtrate tank body is provided with a liquid outlet. The liquid inlet and the liquid outlet are all connected to the inside of the filtrate tank body. The side is equipped with a filtrate external circulation filtering device. The present invention is provided with a filtrate external circulation filtering device on the side of the filtrate tank body, and the filtrate in the filtrate storage tank is subjected to external circulation filtering through the filtrate external circulation filtering device to filter out the filtrate contained in the filtrate. A small amount of impurities, the lower filtrate and the upper filtrate filtrate are stirred under the action of external circulation to prevent the filtrate from standing and stratifying. The ultrasonic liquid level detection device can conveniently detect the filtrate liquid level in the storage tank.

Description

Filtrate storage tank for phosphating slag treatment system

【Technical field】

The invention relates to the technical field of phosphating slag treatment, in particular to the technical field of phosphating slag filtrate storage tank.

【Background technique】

Phosphating is a commonly used surface treatment technology, which is widely used in industries such as automobiles, chemicals, ships, aerospace and household appliances. During the phosphating process, along with the phosphating film-forming reaction, phosphating slag precipitates will continue to be produced. Phosphating slag belongs to hazardous waste. In the "National List of Hazardous Wastes", phosphating slag is acidic and mainly contains iron, zinc and phosphate radicals; at the same time, it also contains a certain amount of calcium, potassium and nickel according to the type of phosphating solution used. Plasma. If the phosphating slag is directly discharged into the soil, the phosphate and other substances in it will be eroded by weathering, rain and snow leaching, and surface flow, which will cause soil acidification or other reactions, and some trace metal substances may also be in the soil. Accumulation occurs. If phosphating slag enters rivers, lakes or oceans with natural precipitation or surface runoff, it will pollute surface water. Excessive phosphorus may cause eutrophication of water bodies; if it seeps into the ground with surface runoff, it will pollute groundwater. Therefore, if the phosphating slag is not treated and discharged into the environment, it will cause serious pollution to the soil and water bodies. During the treatment of the phosphating slag, it is often necessary to separate the solid and liquid of the phosphating slag to facilitate the extraction of the phosphating slag. However, the existing separation equipment is not completely separated, and the filtrate after solid-liquid separation may still contain solid residues, and the reaction between the phosphating residue and flocculant and other drugs is too slow, resulting in the possibility that the subsequent filtrate may still contain solid residues. The filtrate storage tank cannot effectively separate the filtrate from the sediment, and the existing filtrate storage tank is inconvenient to detect the internal liquid level height, resulting in unclear filtrate content in the filtrate storage tank.

【Content of invention】

The purpose of the present invention is to solve the problems in the prior art, and to propose a filtrate storage tank for a phosphating slag treatment system, which can carry out external circulation filtration of the filtrate in the filtrate storage tank, and filter out a small amount of impurities contained in the filtrate. Stirring under the action of circulation prevents the filtrate from standing and stratifying, and can conveniently detect the liquid level of the filtrate in the storage tank.

In order to achieve the above object, the present invention proposes a filtrate storage tank for a phosphating slag treatment system, including a filtrate tank body, a liquid inlet, a liquid outlet, several supporting feet, a filtrate external circulation filter device, an ultrasonic liquid level detection device, Control panel, the upper end of the filtrate tank body is provided with a liquid inlet, the lower end of the filtrate tank body is provided with a liquid outlet, and the liquid inlet and outlet are connected with the inside of the filtrate tank body. One side of the filtrate tank body is provided with a filtrate external circulation filter device, and the side wall of the filtrate tank body away from the filtrate external circulation filter device is provided with an ultrasonic liquid level detection device, and the lower end of the filtrate tank body is provided with several Supporting feet, the front of the filtrate tank body is provided with a control panel, the control panel is connected to the filtrate external circulation filter device for control, and the control panel is connected to the ultrasonic liquid level detection device for data communication.

As a preference, the filtrate external circulation filtering device includes an external circulation pipeline, a circulating water pump, a filtrate filtration device, and a three-way joint, the upper end of the external circulation pipeline communicates with the upper end of the side wall of the filtrate tank body, and the lower end of the external circulation pipeline It communicates with the side of the liquid outlet, and the lower end of the outer circulation pipe is connected to the liquid outlet through a three-way joint. The outer circulation pipe is provided with a circulating water pump, and the upper end of the said circulating water pump is equipped with a filtrate filtration device.

Preferably, the circulation direction of the filtrate in the external circulation pipeline is from the liquid outlet end to the communication end between the upper end of the external circulation pipeline and the side wall of the filtrate tank body.

As a preference, several pipe support rods are provided on the side of the external circulation pipe, and the other ends of the pipe support rods are fixedly connected to the side of the filtrate tank body.

As a preference, the ultrasonic liquid level detection device includes a liquid level pipe, a first connecting pipe, a second connecting pipe, and an ultrasonic liquid level gauge, the liquid level pipe is vertically arranged on the side of the filtrate tank body, and the The upper end of the liquid level pipe is horizontally provided with a first connecting pipe, and the lower end of the liquid level pipe is horizontally provided with a second connecting pipe. The end is connected, and the upper end of the liquid level tube is provided with an ultrasonic liquid level gauge, and the ultrasonic liquid level gauge is connected with the control panel for data communication.

As a preference, an electric control valve is provided on the liquid outlet, and the control panel is connected to the electric control valve.

Beneficial effects of the filtrate storage tank used in the phosphating slag treatment system of the present invention: the present invention arranges a filtrate external circulation filter device on the side of the filtrate tank body, and performs external circulation filtration on the filtrate in the filtrate storage tank through the filtrate external circulation filter device , filter out a small amount of impurities contained in the filtrate, the lower filtrate and the upper filtrate filtrate are stirred under the action of external circulation to prevent the filtrate from standing and stratifying, and the ultrasonic liquid level detection device can conveniently detect the liquid level of the filtrate in the storage tank.

The features and advantages of the present invention will be described in detail with reference to the accompanying drawings.

【Description of drawings】

Fig. 1 is a schematic structural view of a filtrate storage tank for a phosphating slag treatment system according to the present invention.

In the figure: 1-Filtrate tank body, 2-Liquid inlet, 3-Liquid outlet, 4-Support feet, 5-Filtrate external circulation filter device, 6-Ultrasonic liquid level detection device, 7-Control panel, 8-Electricity Control valve, 51-external circulation pipeline, 52-circulating water pump, 53-filtrate filter device, 54-tee joint, 55-pipe support rod, 61-level pipe, 62-first connecting pipe, 63-second connection Tube, 64-ultrasonic liquid level gauge.

【Detailed ways】

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described here are only used to explain the present invention, and are not intended to limit the scope of the present invention. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concept of the present invention.

Referring to Fig. 1, a filtrate storage tank for a phosphating slag treatment system according to the present invention includes a filtrate tank body 1, a liquid inlet 2, a liquid outlet 3, several supporting feet 4, a filtrate external circulation filter device 5, and an ultrasonic liquid level probe Device 6, control panel 7, the upper end of the filtrate tank body 1 is provided with a liquid inlet 2, the lower end of the filtrate tank body 1 is provided with a liquid outlet 3, and the liquid inlet 2 and the liquid outlet 3 are both It communicates with the inside of the filtrate tank body 1, the side of the filtrate tank body 1 is provided with a filtrate external circulation filter device 5, and the side wall of the filtrate tank body 1 away from the filtrate external circulation filter device 5 is provided with an ultrasonic wave The liquid level detection device 6, the lower end of the filtrate tank body 1 is provided with a number of support feet 4, the front of the filtrate tank body 1 is provided with a control panel 7, and the control panel 7 is connected to the filtrate external circulation filter device 5 , the control panel 7 is connected with the ultrasonic liquid level detection device 6 for data communication, and the filtrate external circulation filtering device 5 includes an external circulation pipeline 51, a circulating water pump 52, a filtrate filtering device 53, and a three-way joint 54. The upper end of the outer circulation pipeline 51 communicates with the upper end of the side wall of the filtrate tank body 1, the lower end of the outer circulation pipeline 51 communicates with the side of the liquid outlet 3, and the lower end of the outer circulation pipeline 51 communicates with the liquid outlet 3 through a tee Joint 54 is connected, and described external circulation pipe 51 is provided with circulating water pump 52, and described circulating water pump 52 upper end is provided with the filtrate filtration device 53 that can cooperate with it, and the filtrate circulation direction in described external circulation pipe 51 is by The 3 ends of the liquid outlet are transported to the upper end of the outer circulation pipeline 51 and the side wall of the filtrate tank body 1. The side wall of the outer circulation pipeline 51 is provided with a number of pipeline support rods 55, and the other end of the pipeline support rod 55 is connected to the filtrate The side of the tank body 1 is fixedly connected, and the ultrasonic liquid level detection device 6 includes a liquid level pipe 61, a first connecting pipe 62, a second connecting pipe 63, and an ultrasonic liquid level gauge 64. The liquid level pipe 61 is vertical Located on the side of the filtrate tank body 1, the upper end of the liquid level pipe 61 is horizontally provided with a first connecting pipe 62, and the lower end of the liquid level pipe 61 is horizontally provided with a second connecting pipe 63, and the first connecting pipe 63 is horizontally provided. 62. The other end of the second connecting pipe 63 communicates with the upper and lower ends of the side wall of the filtrate tank body 1 respectively. The upper end of the liquid level pipe 61 is provided with an ultrasonic liquid level gauge 64, and the ultrasonic liquid level gauge 64 is connected to the control panel 7 Data communication connection, the liquid outlet 3 is provided with an electric control valve 8, and the control panel 7 is connected with the electric control valve 8 for control.

Working process of the present invention:

During the working process of the filtrate storage tank for the phosphating slag treatment system of the present invention, the filtrate is introduced into the filtrate tank body 1 through the liquid inlet 2, the control panel 7 controls the electric control valve 8 to close, and the circulating water pump 52 transfers the filtrate tank body 1 The liquid at the bottom is transported to the upper end of the filtrate tank body 1 through the external circulation pipeline 51, and is filtered by the filtrate filter device 53. The ultrasonic liquid level detection device 6 can detect the liquid level height in the filtrate tank body 1, which is displayed by the control panel 7. When needed When the filtrate is discharged, the electric control valve 8 is opened through the control panel 7 .

The above-mentioned embodiment is an illustration of the present invention, not a limitation of the present invention, and any solution after a simple transformation of the present invention belongs to the protection scope of the present invention.

Claims (6)

1. The utility model provides a phosphorization sediment is filtrating holding vessel for processing system which characterized in that: comprises a filtrate tank body (1), a liquid inlet (2), a liquid outlet (3), a plurality of supporting legs (4), a filtrate outer circulation filtering device (5), an ultrasonic liquid level detection device (6) and a control panel (7), wherein the liquid inlet (2) is arranged at the upper end of the filtrate tank body (1), the liquid outlet (3) is arranged at the lower end of the filtrate tank body (1), the liquid inlet (2) and the liquid outlet (3) are both communicated with the interior of the filtrate tank body (1), the filtrate outer circulation filtering device (5) is arranged at the side edge of one side of the filtrate tank body (1), the ultrasonic liquid level detection device (6) is arranged at the side wall of one side of the filtrate tank body (1) far away from the filtrate outer circulation filtering device (5), the plurality of supporting legs (4) are arranged at the lower end of the filtrate tank body (1), the control panel (7) is arranged on the, control panel (7) and filtrating extrinsic cycle filter equipment (5) control connection, control panel (7) and ultrasonic wave visit liquid level device (6) data communication connection.

2. The filtrate storage tank for the phosphated slag processing system as claimed in claim 1, wherein: filtrate extrinsic cycle filter equipment (5) include extrinsic cycle pipeline (51), circulating water pump (52), filtrating filter equipment (53), three way connection (54), extrinsic cycle pipeline (51) upper end and filtrating jar body (1) lateral wall upper end intercommunication, extrinsic cycle pipeline (51) lower extreme and liquid outlet (3) side intercommunication, extrinsic cycle pipeline (51) lower extreme and liquid outlet (3) between be connected through three way connection (54), extrinsic cycle pipeline (51) on be equipped with circulating water pump (52), circulating water pump (52) upper end be equipped with can rather than complex filtrating filter equipment (53).

3. The filtrate storage tank for the phosphated slag processing system as claimed in claim 2, wherein: the filtrate in the external circulation pipeline (51) is conveyed to the upper end of the external circulation pipeline (51) from the liquid outlet (3) end and communicated with the side wall of the filtrate tank body (1).

4. The filtrate storage tank for the phosphated slag processing system as claimed in claim 2, wherein: the side of the external circulation pipeline (51) is provided with a plurality of pipeline supporting rods (55), and the other ends of the pipeline supporting rods (55) are fixedly connected with the side of the filtrate tank body (1).

5. The filtrate storage tank for the phosphated slag processing system as claimed in claim 1, wherein: liquid level device (6) are visited to ultrasonic wave include liquid level pipe (61), first connecting pipe (62), second connecting pipe (63), ultrasonic wave level gauge (64), liquid level pipe (61) vertically locate filtrate tank body (1) side, liquid level pipe (61) upper end transversely be equipped with first connecting pipe (62), liquid level pipe (61) lower extreme transversely be equipped with second connecting pipe (63), first connecting pipe (62), second connecting pipe (63) other end respectively with filtrate tank body (1) lateral wall both ends intercommunication from top to bottom, liquid level pipe (61) upper end be equipped with ultrasonic wave level gauge (64), ultrasonic wave level gauge (64) and control panel (7) data communication be connected.

6. The filtrate storage tank for the phosphated slag processing system as claimed in claim 1, wherein: the liquid outlet (3) on be equipped with electric control valve (8), control panel (7) and electric control valve (8) control connection.