Phosphoric acid washing device

Abstract

The utility model relates to the technical field of phosphoric acid treatment, in particular to a phosphoric acid washing device which comprises a sedimentation tank, a material injection pipe is fixedly connected to one side of the sedimentation tank, a material discharge pipe is fixedly connected to the other side of the sedimentation tank, a filter screen is fixedly connected to the tail end in the material discharge pipe, and a washing assembly is arranged on one side of the sedimentation tank. The washing assembly comprises a washing tower, an input pipe is fixedly connected to the top of one side of the washing tower, a liquid conveying pipe is fixedly connected to the top end of the washing tower, a liquid discharging pipe is fixedly connected to the bottom of one side of the washing tower, a spiral liquid guiding frame is installed in the washing tower, and a spraying pipe is fixedly connected to the interior of the washing tower; a plurality of through holes are formed in the spraying pipe, and a water pump is arranged between the sedimentation tank and the washing tower, according to the scheme, by designing the washing assembly, when phosphoric acid is subjected to washing treatment, spraying washing can be conducted after liquid sedimentation, meanwhile, the spraying washing effect can be improved during spraying, and therefore the quality of phosphoric acid after impurity treatment is effectively improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of phosphoric acid treatment, in particular to a phosphoric acid washing device. BACKGROUND

[0002] Phosphoric acid washing is mainly for removing impurities in the phosphoric acid. In the production process of the phosphoric acid, for example, through a wet-process phosphoric acid production process, some insoluble impurities (such as silicon dioxide) and metal ions (such as calcium, magnesium, iron and aluminum) and other organic impurities in the ore will be mixed into the phosphoric acid. The impurities will affect the quality of the phosphoric acid and have an adverse effect on the subsequent production of products taking the phosphoric acid as a raw material, such as production of ammonium phosphate fertilizer, lithium iron phosphate and other materials. The purity of the phosphoric acid can be improved through washing.

[0003] However, in the current phosphoric acid washing treatment, the washing agent is usually directly sprayed in the phosphoric acid liquid. Although this method is relatively convenient to operate, the phosphoric acid washing effect is poor, thereby affecting the quality of the phosphoric acid after impurity treatment. Therefore, in order to solve the above problems, the application provides a phosphoric acid washing device. CONTENT OF THE INVENTION

[0004] In order to solve the problem that the current spraying method affects the quality of the phosphoric acid after impurity treatment, the application provides a phosphoric acid washing device.

[0005] The application provides a phosphoric acid washing device, which comprises a sedimentation tank, one side of the sedimentation tank is fixedly connected with a feeding pipe, the other side of the sedimentation tank is fixedly connected with a discharging pipe, the inner end of the discharging pipe is fixedly connected with a filter screen, one side of the sedimentation tank is provided with a washing assembly, the washing assembly comprises a washing tower, one side of the top of the washing tower is fixedly connected with an input pipe, the top end of the washing tower is fixedly connected with a liquid conveying pipe, the bottom of one side of the washing tower is fixedly connected with a liquid discharging pipe, a spiral liquid guide frame is installed in the washing tower, and a spraying pipe is fixedly connected in the washing tower.

[0006] Preferably, the washing tower is arranged at one side of the sedimentation tank, and the washing tower is provided with supporting legs at the bottom.

[0007] Preferably, the spraying pipe is vertically arranged in the washing tower, and the spraying pipe is arranged at the middle position of the washing tower.

[0008] Preferably, the top end of the spiral liquid guide frame is arranged below the input pipe, and the spraying pipe is arranged on the inner side of the spiral liquid guide frame.

[0009] Preferably, the sedimentation tank, the washing tower and the water pump are in communication through pipelines.

[0010] In summary, the application has the following beneficial technical effects:

[0011] By designing the washing assembly, when the phosphoric acid washing treatment is performed, the liquid is injected into the inside of the sedimentation tank through the injection pipe, the liquid is precipitated in the inside of the sedimentation tank, the liquid precipitated in the inside of the sedimentation tank is input into the inside of the washing tower through the water pump and the pipeline, at this time, the liquid flows in the inside of the spiral liquid guide frame, then the washed liquid is injected into the inside of the spray pipe through the liquid delivery pipe, the liquid is sprayed out through the plurality of through holes on the spray pipe, so that the liquid flowing in the inside of the spiral liquid guide frame is continuously sprayed, finally, the liquid in the inside of the spiral liquid guide frame flows into the inside of the washing tower and is discharged through the liquid discharge pipe; compared with the prior art, the design can precipitate the liquid and then perform spray washing, and can improve the spray washing effect when spraying, so that the quality after the phosphoric acid impurity treatment is effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 is the overall structure schematic diagram of the sedimentation tank in the embodiment of the application;

[0013] Figure 2 is the internal structure schematic diagram of the sedimentation tank in the embodiment of the application;

[0014] Figure 3 is the overall structure schematic diagram of the washing tower in the embodiment of the application;

[0015] Figure 4 is the internal structure schematic diagram of the washing tower in the embodiment of the application;

[0016] Figure 5 is the overall structure schematic diagram of the device in the embodiment of the application.

[0017] Mark explanation: 1, sedimentation tank; 2, injection pipe; 3, discharge pipe; 4, filter screen; 5, washing tower; 6, support leg; 7, input pipe; 8, liquid delivery pipe; 9, liquid discharge pipe; 10, spiral liquid guide frame; 11, spray pipe; 12, through hole; 13, water pump; 14, pipeline. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings Figure 1 - Figure 5 The application is further described in detail.

[0019] Embodiment:

[0020] A phosphoric acid washing device is used for phosphoric acid washing treatment, referring to Figure 1 - Figure 2, including a sedimentation tank 1, the liquid is precipitated through the sedimentation tank 1, the sedimentation tank 1 is fixedly connected with a feeding pipe 2 on one side, the other side of the sedimentation tank 1 is fixedly connected with a discharge pipe 3, the inside end of the discharge pipe 3 is fixedly connected with a filter screen 4, the discharged liquid is filtered through the filter screen 4, the sedimentation tank 1 is provided with a washing assembly on one side, the phosphoric acid is washed through the washing assembly, so as to remove the impurities in the phosphoric acid.

[0021] When processing, the liquid is injected into the inside of the sedimentation tank 1 through the feeding pipe 2, so that the liquid is precipitated in the inside of the sedimentation tank 1, then the precipitated liquid is discharged through the discharge pipe 3, and filtered through the filter screen 4, and then the phosphoric acid is washed through the washing assembly.

[0022] Referring to Figure 3 - Figure 5 The washing assembly comprises a washing tower 5, the washing tower 5 is arranged on one side of the sedimentation tank 1, the washing tower 5 is provided with supporting legs 6 at the bottom, the washing tower 5 is fixedly connected with an input pipe 7 on one side of the top, the liquid after precipitation is conveniently injected into the inside of the washing tower 5 through the input pipe 7, the washing tower 5 is fixedly connected with a liquid conveying pipe 8 at the top end, the liquid for spraying washing is conveniently input through the liquid conveying pipe 8, the washing tower 5 is fixedly connected with a liquid discharge pipe 9 on one side of the bottom, the liquid after washing is conveniently discharged through the liquid discharge pipe 9, the washing tower 5 is internally provided with a spiral liquid guiding frame 10, the input liquid is guided through the spiral liquid guiding frame 10, on the one hand, the flow rate of the liquid is reduced, and on the other hand, the subsequent spraying washing is facilitated, so that the effect of spraying washing is effectively improved, the top end of the spiral liquid guiding frame 10 is arranged below the input pipe 7, so that the liquid input by the input pipe 7 flows in the inside of the spiral liquid guiding frame 10, the washing tower 5 is fixedly connected with a spraying pipe 11 in the inside, the liquid conveying pipe 8 and the spraying pipe 11 are in communication, so that the liquid in the inside of the liquid conveying pipe 8 can flow into the inside of the spraying pipe 11, the spraying pipe 11 is vertically arranged in the inside of the washing tower 5, and the spraying pipe 11 is arranged at the middle position of the washing tower 5, the spraying pipe 11 is arranged in the inside of the spiral liquid guiding frame 10, a plurality of through holes 12 are formed in the spraying pipe 11, a water pump 13 is arranged between the sedimentation tank 1 and the washing tower 5, the sedimentation tank 1, the washing tower 5 and the water pump 13 are in communication through a pipeline 14, the liquid after precipitation in the inside of the sedimentation tank 1 is conveniently input into the inside of the washing tower 5 through the water pump 13 and the pipeline 14;

[0023] When washing, the liquid after precipitation in the inside of the sedimentation tank 1 is input into the inside of the washing tower 5 through the water pump 13 and the pipeline 14, so that the liquid is conveyed from the input pipe 7 to the inside of the spiral liquid guiding frame 10, at this time, the liquid flows in the inside of the spiral liquid guiding frame 10, then the liquid after washing is injected into the inside of the spraying pipe 11 through the liquid conveying pipe 8, the liquid is sprayed out through the plurality of through holes 12 of the spraying pipe 11, so that the liquid flowing in the inside of the spiral liquid guiding frame 10 is continuously sprayed, finally, the liquid in the inside of the spiral liquid guiding frame 10 flows into the inside of the washing tower 5, and then is discharged through the liquid discharge pipe 9.

[0024] The working principle of the phosphoric acid washing device is as follows: during processing, liquid is injected into the inside of the sedimentation tank 1 through the injection pipe 2, so that the liquid is precipitated in the inside of the sedimentation tank 1, and then the liquid precipitated in the inside of the sedimentation tank 1 is input into the inside of the washing tower 5 through the water pump 13 and the pipeline 14, so that the liquid is transported from the input pipe 7 to the inside of the spiral liquid guide frame 10, at this time, the liquid flows in the inside of the spiral liquid guide frame 10, then the washed liquid is injected into the inside of the spray pipe 11 through the liquid conveying pipe 8, and the liquid is sprayed out through the multiple through holes 12 on the spray pipe 11, so that the liquid flowing in the inside of the spiral liquid guide frame 10 is continuously sprayed, finally, the liquid in the inside of the spiral liquid guide frame 10 flows into the inside of the washing tower 5, and then is discharged through the liquid discharge pipe 9.

[0025] The above describes an exemplary embodiment of the phosphoric acid washing device provided by the present disclosure with reference to the preferred embodiment, however, those skilled in the art can understand that various modifications and changes can be made to the above specific embodiment without departing from the concept of the present disclosure, and various technical features and structures proposed by the present disclosure can be combined without departing from the protection scope of the present disclosure, and the protection scope of the present disclosure is determined by the appended claims.

Claims

1. A phosphoric acid washing plant comprising a sedimentation basin (1), characterized in that: The sedimentation tank (1) one side is fixedly connected with injection pipe (2), the sedimentation tank (1) the other side is fixedly connected with discharge pipe (3), the discharge pipe (3) inside end is fixedly connected with filter screen (4), the sedimentation tank (1) one side is equipped with washing assembly, the washing assembly includes washing tower (5), the washing tower (5) one side top is fixedly connected with input pipe (7), the washing tower (5) top is fixedly connected with infusion tube (8), the washing tower (5) one side bottom is fixedly connected with drain pipe (9), the washing tower (5) inside is installed with spiral liquid guide frame (10), the washing tower (5) inside is fixedly connected with spray pipe (11), the spray pipe (11) is opened with a plurality of through holes (12), the sedimentation tank (1) with washing tower (5) between being equipped with water pump (13).

2. A phosphoric acid washing device according to claim 1, characterized in that: The washing tower (5) is arranged on one side of the sedimentation tank (1), and the washing tower (5) is provided with supporting legs (6) at the bottom.

3. A phosphoric acid washing device according to claim 1, characterized in that: The spray pipe (11) is vertically arranged in the washing tower (5), and the spray pipe (11) is arranged at the middle position of the washing tower (5).

4. A phosphoric acid washing device according to claim 1, characterized in that: The top end of the spiral liquid guide frame (10) is arranged below the input pipe (7), and the spray pipe (11) is arranged inside the spiral liquid guide frame (10).

5. A phosphoric acid washing device according to claim 1, characterized in that: The sedimentation tank (1), the washing tower (5) and the water pump (13) are communicated through the pipeline (14).

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