Salt mud treatment system

Abstract

The utility model relates to a salty mud treatment system. The system comprises a salty mud pit, a plate-and-frame filter press, a water distribution pit and a spiral conveyer, the salt mud pit is connected with an inlet of the plate-and-frame filter press through a pipeline, a stirring device is arranged in the salt mud pit, a guide hopper is arranged below the plate-and-frame filter press, the guide hopper is connected with a spiral conveyor, a water outlet of the plate-and-frame filter press is connected with a water distribution pit, and the water distribution pit is connected with a water outlet of the plate-and-frame filter press. The scaling and blocking phenomena of equipment such as a heat exchanger are reduced by adopting a mode of mechanically stirring the salty mud through the stirring device, and meanwhile, the salty mud is directly conveyed to a transport vehicle by arranging the spiral conveyor, so that the field operation environment is improved.

Description

Technical Field

[0001] This utility model relates to the field of chemical production technology, and in particular to a salt mud treatment system. Background Technology

[0002] Salt sludge generated during potassium hydroxide production is a type of waste. Its treatment is of great significance for environmental protection and can also be recycled for reuse. Currently, the salt sludge treatment system uses compressed air bubbling agitation. The sludge is in long-term and large-area contact with air, which easily produces barium carbonate (in the potassium hydroxide production process, in order to control sulfate in the brine, a certain amount of barium chloride is added during brine treatment, and barium chloride produces barium carbonate when it comes into large-area contact with air). This causes scaling and blockage in equipment such as heat exchangers. In addition, when the salt sludge is discharged, it is directly piled up on site, resulting in a harsh working environment. Utility Model Content

[0003] The purpose of this invention is to provide a salt mud treatment system to overcome the shortcomings of the prior art. By using a stirring paddle to mechanically stir the salt mud, the scaling and clogging of equipment such as heat exchangers can be reduced. At the same time, by setting up a screw conveyor, the salt mud can be directly transported to the transport vehicle, thereby improving the on-site working environment.

[0004] According to the present invention, a salt mud treatment system includes a salt mud pit, a plate and frame filter press, a water distribution pit, and a screw conveyor. The salt mud pit is connected to the inlet of the plate and frame filter press via a pipe. A stirring device is installed in the salt mud pit. A guide hopper is provided below the plate and frame filter press and is connected to the screw conveyor. The outlet of the plate and frame filter press is connected to the water distribution pit.

[0005] In one embodiment, a salt mud pump is installed on the pipeline between the salt mud pit and the plate and frame filter press.

[0006] In one embodiment, a pressure relief pipe is provided on the pipeline between the salt mud pump and the plate and frame filter press, and the outlet of the pressure relief pipe is connected to the salt mud pit.

[0007] In one embodiment, a pressure regulating valve is provided on the pipeline between the salt mud pump and the plate and frame filter press.

[0008] In one embodiment, the stirring device includes a stirring motor, stirring blades, and stirring shaft.

[0009] In one embodiment, two stirring shafts are provided in the salt mud pit.

[0010] In one embodiment, the screw conveyor includes a drain flange and a sludge discharge port.

[0011] In one embodiment, the sludge discharge port of the screw conveyor is connected to a transport vehicle.

[0012] In one embodiment, the plate and frame filter press further includes a water washing inlet.

[0013] Compared with the prior art, the advantages of this utility model are as follows:

[0014] First, a stirring device is installed in the salt mud pit. The stirring paddle is used to mechanically stir the salt mud instead of using compressed air for bubbling. This reduces the amount of barium chloride used, effectively controls the generation of barium carbonate, and reduces the blockage of equipment such as heat exchangers caused by scaling. Furthermore, after using the stirring paddle for mechanical stirring, the generation of potassium chloride dust is reduced because there is no compressed air to purge, thereby reducing environmental pollution and mitigating the corrosion of equipment by potassium chloride dust.

[0015] Secondly, by setting up screw conveyors, the salt mud can be directly transported to the transport vehicles, reducing the labor intensity of operators, preventing the salt mud from piling up on the production site, and improving the on-site working environment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a salt mud treatment system proposed in this utility model.

[0017] Illustrations: 1. Salt mud pit; 2. Plate and frame filter press; 3. Water distribution pit; 4. Screw conveyor; 5. Feed hopper; 6. Salt mud pump; 7. Pressure relief pipe; 8. Pressure regulating valve; 9. Agitator motor; 10. Agitator blades; 11. Agitator shaft; 12. Drainage flange; 13. Sludge discharge port; 14. Water washing inlet. Detailed Implementation

[0018] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples.

[0019] In the description of this utility model, it should be understood that if terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0020] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical signal connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0021] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this invention are for illustrative purposes only and do not represent the only possible implementation.

[0022] Reference Figure 1 , Figure 1 This diagram illustrates the structure of a salt mud treatment system according to an embodiment of the present invention. The system includes a salt mud pit 1, a plate and frame filter press 2, a water distribution pit 3, and a screw conveyor 4. The salt mud pit 1 is connected to the inlet of the plate and frame filter press 2 via a pipe. A stirring device is installed in the salt mud pit 1. A guide hopper 5 is located below the plate and frame filter press 2 and is connected to the screw conveyor 4. The outlet of the plate and frame filter press 2 is connected to the water distribution pit 3. The stirring device includes a stirring motor 9, stirring blades 10, and stirring shafts 11. Two stirring shafts 11 are installed in the salt mud pit 1. Using mechanical stirring with stirring blades replaces compressed air bubbling, reducing the amount of barium chloride used, effectively controlling the generation of barium carbonate, and reducing clogging of heat exchangers and other equipment due to scaling. Furthermore, the absence of compressed air purging after mechanical stirring reduces the generation of potassium chloride dust, thereby reducing environmental pollution and mitigating the corrosion of equipment by potassium chloride dust.

[0023] In one embodiment, a salt mud pump 6 is further provided on the pipeline between the salt mud pit 1 and the plate and frame filter press 2, and the salt mud in the salt mud pit 1 is pumped to the plate and frame filter press 2 for dewatering.

[0024] In one embodiment, a pressure relief pipe 7 is further provided on the pipeline between the salt mud pump 6 and the plate and frame filter press 2, and the outlet of the pressure relief pipe 7 is connected to the salt mud pit 1.

[0025] In one embodiment, a pressure regulating valve 8 is further provided on the pipeline between the salt mud pump 6 and the plate and frame filter press 2.

[0026] In one embodiment, the screw conveyor 4 further includes a drainage flange 12 and a mud discharge port 13. The mud discharge port 13 of the screw conveyor 4 is connected to a transport vehicle to directly transport the salt mud to the transport vehicle, thereby reducing the labor intensity of the operator, preventing the salt mud from piling up on the production site, and improving the on-site working environment.

[0027] In one embodiment, the plate and frame filter press 2 further includes a water washing inlet 14, and an air inlet is provided next to the water washing inlet 14. The water washing inlet and air inlet provided in the plate and frame filter press 2 can ensure that the water flow and air flow fully penetrate the salt mud under constant pressure, without blind spots, and save energy.

[0028] In operation, the present invention uses a salt mud pump 6 to pump the salt mud in the salt mud pit 1 to a plate and frame filter press 2 for dewatering. The dewatered dry salt mud enters the screw conveyor 4 through the guide hopper 5 and is directly transported to the transport vehicle through the mud discharge port 13 of the screw conveyor 4. The wastewater after filtration by the plate and frame filter press 2 flows to the water distribution pit 3 for recycling.

[0029] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A salt mud treatment system, characterized in that, The system includes a salt mud pit, a plate and frame filter press, a water distribution pit, and a screw conveyor. The salt mud pit is connected to the inlet of the plate and frame filter press via a pipeline. A stirring device is installed in the salt mud pit. A guide hopper is located below the plate and frame filter press and is connected to the screw conveyor. The outlet of the plate and frame filter press is connected to the water distribution pit.

2. The salt mud treatment system according to claim 1, characterized in that: A salt mud pump is installed on the pipeline between the salt mud pit and the plate and frame filter press.

3. The salt mud treatment system according to claim 2, characterized in that: A pressure relief pipe is installed on the pipeline between the salt mud pump and the plate and frame filter press, and the outlet of the pressure relief pipe is connected to the salt mud pit.

4. The salt mud treatment system according to claim 2, characterized in that: A pressure regulating valve is installed on the pipeline between the salt mud pump and the plate and frame filter press.

5. The salt mud treatment system according to claim 1, characterized in that: The stirring device includes a stirring motor, stirring blades, and stirring shaft.

6. The salt mud treatment system according to claim 5, characterized in that: Two stirring shafts are installed in the salt mud pit.

7. The salt mud treatment system according to claim 1, characterized in that: The screw conveyor includes a drainage flange and a sludge discharge port.

8. The salt mud treatment system according to claim 7, characterized in that, The sludge discharge port of the screw conveyor is connected to the transport vehicle.

9. The salt mud treatment system according to claim 1, characterized in that: The plate and frame filter press also includes a water washing inlet.

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