A front-end pipeline layout structure for online discharge of brine mud from raw brine tanks

Abstract

This utility model discloses a front-end pipeline arrangement structure for online sludge removal from raw brine tanks, belonging to the field of heat pump salt production technology. Its features include: a raw brine tank body, sludge removal pipes, and auxiliary pipes connected to the sludge removal pipes at the front end; at least two sludge removal pipes and a corresponding number of auxiliary pipes form a sludge removal pipe group. The sludge removal pipes and auxiliary pipes of the sludge removal pipe group penetrate the tank wall from the outside of the raw brine tank body and form a Y-shaped distribution on the inside of the raw brine tank body. The sludge removal pipe groups are evenly distributed circumferentially on the raw brine tank body, and the inner openings of all the sludge removal pipes of the sludge removal pipe groups are evenly distributed circumferentially on the inside of the raw brine tank body. This front-end pipeline arrangement structure exhibits excellent performance in terms of structural rationality, sludge removal effect, system maintainability, and operational safety, and is a key technical support for achieving efficient online sludge removal from raw brine tanks.

Description

Technical Field

[0001] This utility model belongs to the field of heat pump salt production technology, and in particular relates to a front-end pipeline arrangement structure for online salt sludge discharge from the original brine tank. Background Technology

[0002] In the well and mine salt production industry, for enterprises using non-purified calcium sulfate-type brine heat pump salt production processes, the raw brine typically does not require purification. Instead, caustic soda solution is added directly to the original brine tank to adjust the pH to weakly alkaline before it is sent to the salt production system. During this process, impurities in the brine react with the caustic soda to form salt sludge, which gradually settles at the bottom of the original brine tank. As the system operates for an extended period, the salt sludge accumulates, reducing the effective volume of the original brine tank. This affects the storage space and transportation efficiency of the brine, and also makes it easy for the salt sludge to be carried into subsequent systems by the brine, negatively impacting the long-term stable operation of the heat pump salt production system and product quality. To maintain the effective storage space of the original brine tank, ensure the stability of the raw brine quality, and ensure the normal operation of the system, it is necessary to clean the salt sludge at the bottom of the tank regularly. Currently, the removal of salt sludge at the bottom of the original brine tank is mainly done manually offline. This method requires isolating the target original brine tank from the system and draining the brine before cleaning. During the cleaning period, the target original brine tank cannot be used, reducing effective production time and significantly affecting the continuity of salt production. Because the salt mud is mostly gelatinous or slurry-like, it is difficult to clean, requires a lot of manpower, and is labor-intensive. During manual cleaning, workers need to enter the tanks and work in a humid, hot, and oxygen-deficient environment, which is harsh and poses certain safety hazards. In addition, this method also has a significant environmental impact. The original brine tanks need to be cleaned approximately every six months, with each cleaning removing up to 600 tons of salt mud. During the cleaning process, the salt mud is easily scattered everywhere, polluting the surrounding environment and interfering with the operation of other equipment. If it is not handled properly in a timely manner, it may also cause secondary pollution and increase environmental protection costs.

[0003] To address the problems of production interruption, high labor intensity, and environmental pollution caused by manual offline cleaning of salt sludge, our company has designed an online salt sludge removal system and method for raw brine tanks. By installing pipes inside the raw brine tanks to suction and remove salt sludge, the system enables regular online cleaning and discharge of the bottom salt sludge, ensuring the continuity and stability of the salt production process. To further improve the system's sludge discharge efficiency and operational performance, it is necessary to optimize the pipe structure within the raw brine tanks to better suit the distribution characteristics and flow patterns of the salt sludge, thereby achieving efficient and reliable online sludge removal. Utility Model Content

[0004] To address the problem that the salt mud at the bottom of the original brine tank is difficult to clean efficiently, affecting the long-term stable operation of the system, this utility model proposes a front-end pipeline layout structure for online salt mud discharge from the original brine tank by optimizing the internal mud suction pipeline structure to achieve efficient and reliable online discharge of salt mud.

[0005] This utility model is implemented as follows: a front-end pipeline arrangement structure for online salt sludge removal from a raw brine tank, characterized in that: it includes a raw brine tank body, a salt sludge removal pipe, and an auxiliary pipe connected to the salt sludge removal pipe at its front end; at least two salt sludge removal pipes and a corresponding number of auxiliary pipes form a group of salt sludge removal pipes, the salt sludge removal pipes and auxiliary pipes of the group of salt sludge removal pipes penetrate the tank wall of the raw brine tank from the outside and form a Y-shaped distribution on the inside of the raw brine tank body, the group of salt sludge removal pipes is evenly distributed circumferentially on the raw brine tank body, and the inner openings of all the salt sludge removal pipes of the group of salt sludge removal pipes are evenly distributed circumferentially on the inside of the raw brine tank body.

[0006] In the above technical solution, preferably, the salt discharge mud pipe is located on a horizontal plane near the bottom of the original brine barrel, the inner opening of the salt discharge mud pipe is vertically downward, and the salt discharge mud pipe is connected to the bottom of the original brine barrel through a bracket.

[0007] In the above technical solution, preferably, the auxiliary pipe is arranged in a one-to-one correspondence with the salt discharge mud pipe, the auxiliary pipe extends in a parallel direction to the corresponding salt discharge mud pipe, and the inner end of the auxiliary pipe is connected to the part of the auxiliary pipe near the pipe opening.

[0008] In the above technical solution, preferably, the inner opening of the salt discharge mud pipe is formed with a flared structure, and the ends of the salt discharge mud pipe and the auxiliary pipe located on the outside of the original brine tank are provided with flanges.

[0009] In the above technical solution, preferably, a radial separating member is provided between the two sets of salt sludge discharge pipe groups, forming a salt sludge discharge zone between the radial separating members, and a set of the salt sludge discharge pipe groups is arranged in the salt sludge discharge zone. This structure effectively realizes zoned sludge discharge and uniform coverage, improving sludge discharge efficiency and thoroughness. The separating member can guide the salt sludge to concentrate and deposit in the target area, reducing blind spots and dead zones. At the same time, each zone can operate independently, enhancing the reliability and fault tolerance of the system, facilitating maintenance and management, and providing a structural foundation for the subsequent realization of intelligent sludge discharge control.

[0010] In the above technical solution, preferably, the radial separating member forms a wedge-shaped slope on both sides corresponding to the salt sludge discharge zone. This structure makes the bottom of the corresponding salt sludge discharge zone inclined, which helps guide the salt sludge to flow naturally along the slope to the suction inlet of the salt sludge discharge pipe assembly, improving the collection efficiency and discharge effect of the salt sludge. The wedge-shaped slope design not only reduces the retention and accumulation dead zones of salt sludge in the zone, but also reduces the suction load on the discharge pipe, which helps to achieve a faster and more thorough sludge discharge process. At the same time, it optimizes the fluid flow path and further improves the sludge discharge efficiency and operational stability of the entire system.

[0011] The online sludge removal pipeline layout structure proposed in this utility model has many advantages, including optimized structure, improved function, and significant sludge removal effect.

[0012] This structure integrates a sludge discharge pipe and auxiliary pipes at the bottom of the original brine tank, creating a sludge discharge pathway as well as an input channel for cleaning media and saturated brine. This effectively achieves coordinated operation of sludge discharge and cleaning, improving the overall system efficiency. By arranging a Y-shaped pipeline structure inside the original brine tank, the outer openings of the sludge discharge pipe and auxiliary pipes are centrally located for easy unified control and maintenance. Simultaneously, the inner suction ports of the pipelines are evenly distributed in the bottom area of ​​the tank, fully covering the sludge deposition area and enhancing the comprehensiveness and thoroughness of sludge discharge.

[0013] Furthermore, this structure optimizes the direction and location of pipeline extensions, balancing the dual requirements of a compact structure and dispersed sludge suction inlets. This allows the entire system to achieve a wide distribution of sludge suction inlets without occupying additional space, reducing the risk of local blockages or dead zones in sludge discharge, and enhancing the system's adaptability and operational stability. The overall pipeline layout is logically clear, facilitating installation and maintenance, and helps improve sludge discharge efficiency, shorten discharge time, reduce the frequency of manual intervention, and ensure the long-term continuous operation of the original brine tank.

[0014] In summary, this front-end pipeline layout structure demonstrates excellent performance in terms of structural rationality, sludge removal effect, system maintainability, and operational safety, and is a key technical support for achieving efficient online removal of brine sludge from the original brine tank. Attached Figure Description

[0015] Figure 1 This is a top view of the structure of this utility model;

[0016] Figure 2 This is a side view showing the arrangement of the salt discharge pipe, auxiliary pipe, and radial partition component in this utility model;

[0017] Figure 3 This is a schematic diagram of the outer structure of the original brine barrel in this utility model. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model.

[0019] To address the problem of inefficiently cleaning the salt sludge at the bottom of the original brine tank, which affects the long-term stable operation of the system, this utility model provides a front-end pipeline layout structure for online salt sludge removal from the original brine tank. To further illustrate the structure of this utility model, a detailed description is provided below in conjunction with the accompanying drawings:

[0020] Please see Figures 1-3 A front-end pipeline arrangement structure for online salt sludge removal from a raw brine tank is disclosed, comprising a raw brine tank body 1, a salt sludge removal pipe 2, and an auxiliary pipe 3 connected to the salt sludge removal pipe at its front end. The raw brine tank body is a vertical cylindrical structure. The salt sludge removal pipe and auxiliary pipe mentioned in this technical solution are integrated and installed on the raw brine tank body. The salt sludge removal pipe is used to remove salt sludge from inside the raw brine tank, and the auxiliary pipe is used to clean the salt sludge removal pipe or to introduce saturated brine into the salt sludge removal pipe. The salt sludge removal pipe and auxiliary pipe can be made of corrosion-resistant stainless steel to adapt to the high-salt and highly corrosive brine environment. The interface between the salt sludge removal pipe and the raw brine tank body can be connected by sealing gaskets and bolts.

[0021] At least two salt discharge mud pipes and a corresponding number of auxiliary pipes form a salt discharge mud pipe group. The auxiliary pipes are arranged one-to-one with the salt discharge mud pipes, extending parallel to their corresponding salt discharge mud pipes. The inner ends of the auxiliary pipes are interconnected near the openings of the salt discharge mud pipes. In this embodiment, specifically, two salt discharge mud pipes and two auxiliary pipes form a salt discharge mud pipe group. The correspondingly connected auxiliary pipes extend parallel to the salt discharge mud pipes in the same direction. The salt discharge mud pipes and auxiliary pipes of the salt discharge mud pipe group penetrate the wall of the original brine tank from the outside and form a Y-shaped distribution on the inside of the original brine tank. The salt discharge mud pipe groups are evenly distributed circumferentially on the original brine tank, and the inner openings of the salt discharge mud pipes in all salt discharge mud pipe groups are evenly distributed circumferentially on the inside of the original brine tank. In this embodiment, specifically, three sets of salt discharge mud pipes are evenly distributed circumferentially around the original brine tank. Each set of discharge mud pipes extends inward from the tank wall to form a parallel section 2-1 and a bifurcated section 2-2; that is, two discharge mud pipes extend parallel for a period and then bend to form a Y-shaped bifurcation. Furthermore, except for the portion of the inner pipe opening extending vertically downwards, the entire discharge mud pipe is positioned on a horizontal plane near the bottom of the original brine tank. The inner pipe opening faces vertically downwards, and the discharge mud pipe is connected to the bottom of the original brine tank via a bracket. The inner pipe opening of the discharge mud pipe forms a flared structure 2-3, preferably with a flaring angle of 30°-60°. This structure helps to expand the suction range, increase the efficiency of salt mud collection, and reduce the risk of pipe blockage. Flanges 2-4 are provided at the ends of the discharge mud pipes and auxiliary pipes located on the outer side of the original brine tank. The auxiliary pipes are fixed to the corresponding discharge mud pipes via welded brackets. A sealing ring is provided at the flange connection to prevent leakage. The support can be a metal beam, which is fixed to the bottom of the original brine tank by welding or bolting. The support material is the same as the pipeline material or has the same anti-corrosion properties, which can stably support the pipeline and prevent loosening caused by vibration during operation.

[0022] A radial partition 4 is provided between the two sets of salt discharge mud pipes, forming a salt discharge mud partition. A set of salt discharge mud pipes is installed within each partition. The radial partition forms a wedge-shaped slope on both sides of the salt discharge mud partition. The inner opening of the salt discharge mud pipe is located near the lowest point of the partition formed by the radial partition. Combined with the guiding effect of the wedge-shaped slope, the salt mud flows naturally to the suction inlet under its own weight, improving discharge efficiency and reducing manual intervention. The slope of the wedge-shaped slope can be adjusted according to the physical properties of the salt mud (viscosity, density), with a preferred slope angle of 10°-30°, ensuring smooth flow of the salt mud under gravity without occupying too much space at the bottom of the container. Considering the brine environment, corrosion-resistant materials or coatings, such as epoxy coatings or stainless steel composite layers, can be used on the slope to extend the structure's lifespan. Furthermore, shallow guide channels or guide ribs are machined on the wedge-shaped slope to plan the flow direction of the salt mud, guiding it to flow towards the salt mud discharge pipe and avoiding lateral diffusion or unintended accumulation of the salt mud. To improve the efficiency of directional flow of salt mud, a small electromagnetic vibrator or pneumatic vibration source is installed below the slope. It can be activated periodically to disturb the adhering salt mud, which is particularly suitable for environments with highly viscous or agglomerated salt mud.

[0023] In actual operation, the sludge removal system is started periodically. The valves corresponding to the sludge removal pipe assembly are opened, and a negative pressure pump or self-priming pump performs sludge suction on the sludge removal pipe assembly. At the same time, saturated brine or cleaning solution is injected into the sludge removal pipes through auxiliary pipes to flush the inner walls of the pipes or prevent sludge blockage. After the operation is completed, the valves can be closed, and the system returns to normal operation.

[0024] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A front-end pipeline arrangement structure for on-line salt mud discharge of a raw brine tank, characterized by: It includes a raw brine barrel, a salt discharge mud pipe, and an auxiliary pipe whose front end is connected to the salt discharge mud pipe; at least two salt discharge mud pipes and a corresponding number of auxiliary pipes form a group of salt discharge mud pipes. The salt discharge mud pipes and auxiliary pipes of the group of salt discharge mud pipes penetrate the barrel wall of the raw brine barrel from the outside and form a Y-shaped distribution on the inside of the raw brine barrel. The group of salt discharge mud pipes is evenly distributed in the circumferential direction of the raw brine barrel, and the inner openings of the salt discharge mud pipes of all the groups of salt discharge mud pipes are evenly distributed in a ring on the inside of the raw brine barrel.

2. The online salt mud discharge front-end pipeline arrangement structure of the crude brine tank according to claim 1, characterized in that: The salt discharge pipe is located on a horizontal plane near the bottom of the original brine barrel, with the inner opening of the pipe facing vertically downwards. The salt discharge pipe is connected to the bottom of the original brine barrel via a bracket.

3. The pipeline layout structure for online discharge of brine mud from the original brine tank according to claim 2, characterized in that: The auxiliary pipe is provided in a one-to-one correspondence with the salt discharge mud pipe. The auxiliary pipe extends in a direction parallel to the corresponding salt discharge mud pipe, and the inner end of the auxiliary pipe is connected to the part of the auxiliary pipe near the pipe opening.

4. The pipeline layout structure for online discharge of brine mud from the original brine tank according to claim 3, characterized in that: The inner opening of the salt discharge mud pipe is flared, and the ends of the salt discharge mud pipe and the auxiliary pipe located on the outside of the original brine tank are provided with flanges.

5. The pipeline layout structure for online salt mud discharge from the original brine tank according to claim 4, characterized in that: A radial separation member is provided between the two sets of salt discharge mud pipe groups, and a salt discharge mud partition is formed between the radial separation members. A set of the salt discharge mud pipe groups is provided in the salt discharge mud partition.

6. The pipeline layout structure for online salt sludge discharge from the original brine tank according to claim 5, characterized in that: The radial dividing member forms a wedge-shaped slope on both sides corresponding to the salt drainage mud partition.

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