Sodium cyanide storage tank

A technology for sodium cyanide and storage tanks, which is applied in the direction of tank cars, transport passenger cars, railway car body parts, etc., which can solve the problems of pressure vessel category promotion, waste of space, and high cost, and achieve reduction of storage costs, simplification of manufacturing processes, and equipment structure stable effect

Inactive Publication Date: 2014-01-22

天津市化工设计院

5 Cites 0 Cited by

AI-Extracted Technical Summary

Problems solved by technology

The disadvantages are: it is greatly affected by external environmental factors, the cost is high, and it wastes space; in addition, at low temperatures, it is necessary to increase the insulation thickness to maintain the temperature, which increases th...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine

Method used

As shown in accompanying drawing 1, the present invention intends to set up heat-tracing half-pipe jacket 1 on conventional storage tank outer wall, is specifically welded half-pipe jacket on the equipment body 4 within the range of equipment charging coefficient, in half-pipe The uppermost end and the lowermost end of the jacket are respectively welded to the jacket upper port 2 and the jacket lower port 3; as shown in Figure 2a, the half pipe is cut with a stainless steel pipe with a diameter of 50 mm to 125 mm, and a gap is left between adjacent half pipes 1 Quantitative clearance, so as to facilitate the welding operation during the processing of the half-pipe jacket of the equipment. As shown in accompanying drawing 3a, weld the half-pipe jacket end blocking plate 8 at the uppermost and lowermost half-pipe jacket ends 7 of the outer wall half-pipe jacket of the equipment, and use it to connect the half-pipe jacket end 7 to the equipment body The sealed connection of the heat exchange medium is welded near the blocking plate with the heat exchange medium inlet and outlet 6 with a diameter of 25mm to 80mm, so as to feed different heat exchange medium. As shown in attached drawings 2b and 3b, the welding joints of half pipe and equipment body welding place 5, half pipe and blocking plate welding place 9, equipment body and blocking plate welding place 10, etc. are all welded by argon arc welding and require full welding Permeable, and carry out hydrostatic test at 1.25 times the design pressure to ensure the safety and reliability of the structure.

I...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine

Abstract

The invention discloses a sodium cyanide storage tank. Half-pipejackets are arranged on the external wall of the sodium cyanide water solution storage tank; upper ends of half-pipes are 100 to 500 mm lower than a highest liquid level of materials; lower ends of the half-pipes are 100 to 500 mm or more apart from a device base plate; the half-pipes are directly welded to a device body; two ends of the half-pipe jackets are respectively welded to a tail end blocking plate; heat exchange medium inlet and outlet pipes with the diameter of 25 to 80 mm are arranged at two ends of the half-pipes. According to the tank for storing sodium cyanide water solution, when the environmental temperature is too low, the half-pipe jacket can be heated through steam or hot water; when the environmental temperature is too high, low temperature cooling water is utilized inside the half-pipe jacket to remove heat of the solution; temperature of the solution inside the sodium cyanide storage tank is controlled by controlling the outside to add different heat exchange mediums, the temperature of the sodium cyanide water solution is maintained to be at 0 to 25 DEG C, and the purpose of safely and stably storing the sodium cyanide water solution is achieved.

Application Domain

Tank wagons

Technology Topic

Sodium cyanideAqueous solution +4

Image

Examples

Experimental program(1)

Example Embodiment

[0031] Hereinafter, the present invention will be further described in detail according to the drawings:

[0032] As attached figure 1 As shown, the present invention intends to add a heat tracing half-pipe jacket 1 on the outer wall of a conventional storage tank. Specifically, a half-pipe jacket is welded on the equipment body 4 within the range of the equipment charging coefficient, and the half pipe jacket is at the top and bottom of the half pipe jacket. The lower ends are respectively welded to the upper port 2 of the jacket and the lower port 3 of the jacket; as attached Figure 2a The half pipe shown is cut with a stainless steel pipe with a diameter of 50 mm to 125 mm, and a certain amount of gap is left between adjacent half pipes 1 to facilitate the welding operation during the processing of the equipment half pipe jacket. As attached Figure 3a As shown, the half-pipe jacket end blocking plates 8 are welded at the uppermost and lowermost half-pipe jacket ends 7 of the equipment outer wall half pipe jacket respectively, and the half pipe jacket ends 7 are sealed to connect with the equipment body. The heat exchange medium inlet and outlet 6 with a diameter of 25mm~80mm are respectively welded near the blocking plate to pass in different heat exchange media. As attached Figure 2b , Attached Figure 3b The welded joints of the half pipe and the equipment body weld 5, the half pipe and the blocking plate weld 9, the equipment body and the blocking plate weld 10, etc. are all welded by argon arc welding and require full penetration, and the design pressure is 1.25 times Carry out hydraulic test to ensure the safety and reliability of the structure.

[0033] As attached figure 1 Shown: The heat transfer medium in the half pipe jacket 1 needs to be selected according to the ambient temperature. Generally, when the ambient temperature is too high, the cooling medium must be introduced, and when the ambient temperature is too low, the heating medium must be introduced , And pay attention to the flow direction of the heat exchange medium. When steam is used, the upper port 2 of the jacket needs to enter and the lower port 3 of the jacket flows out; when hot water or cooling water is used, the upper port 2 of the jacket needs to flow out and the lower port 3 of the jacket enters. . As attached Figure 4 As shown, the traditional full-jacketed heat tracing sodium cyanide storage tank is welded with a full jacket 11 within the charging coefficient range of the outer wall of the equipment body, and the upper mouth of the welded jacket 2 is connected to the highest and lowest point of the jacket. Lower mouth 3;. Compared with the traditional full-jacketed structure, the half-pipe jacket has a more stable and reliable equipment structure, and can effectively avoid the increase in equipment pressure category due to the gas phase space in the full jacket and increase the subsequent supervision costs.

[0034] In the actual storage of sodium cyanide, we used the figure 1 In the equipment shown in Figure 2 (a, b) and Figure 3 (a, b), a half pipe jacket 1 is added to the outer wall of the equipment body 4 of the storage tank, and the half pipe is cut by a stainless steel pipe with a diameter of 80 mm. The equipment has a straight cylinder height of 8 meters and a half pipe total height of 5 meters. The upper end of the half pipe is 500mm below the maximum liquid level of the material. The lower end of the half pipe is 200mm from the bottom of the equipment. The half pipe is directly welded to the equipment body. The structure is stable and reliable; the half pipe jacket The upper and lower half pipe jacket ends 7 of the range are welded with jacket upper port 2 and jacket lower port 3, and the diameter of the pipe is 50mm for passing the heat exchange medium. When the ambient temperature is too low, 90°C hot water is used in the half-pipe jacket 1 to heat, and when the ambient temperature is too high, 7°C low-temperature cooling water is used in the half-pipe jacket 1 to take away the heat of the solution. In practice, the cost is saved, the equipment manufacturing process is simplified, the equipment structure is more stable, and the operation is flexible, making the storage of the sodium cyanide aqueous solution safer and controllable. In actual operation, the temperature of the solution can be guaranteed to be around 20°C, which is very Good storage effect.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine

Login to view more

PUM

Property	Measurement	Unit
Diameter	50.0 ~ 125.0	mm
Diameter	25.0 ~ 80.0	mm
tensile		MPa
Particle size		Pa
strength	10

Description & Claims & Application Information

We can also present the details of the Description, Claims and Application information to help users get a comprehensive understanding of the technical details of the patent, such as background art, summary of invention, brief description of drawings, description of embodiments, and other original content. On the other hand, users can also determine the specific scope of protection of the technology through the list of claims; as well as understand the changes in the life cycle of the technology with the presentation of the patent timeline. Login to view more.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine

Login to view more