Water quenching device for molten waste salt

Abstract

The utility model relates to the technical field of water quenching equipment, and particularly discloses a molten waste salt water quenching device which comprises a box body, a slag baffle and a liquid inlet pipe, the box body is provided with an overflowing cavity, the overflowing cavity is communicated with the liquid inlet pipe, one side face of the overflowing cavity is provided with a nozzle, the middle of the liquid inlet pipe is connected with the slag baffle, and the lower end of the slag baffle extends to the position above the nozzle. The device is convenient for carrying out water quenching on the fused salt discharged from the chute of the chlorination furnace.

Description

TECHNICAL FIELD

[0001] The utility model relates to water quenching equipment technical field, specifically a kind of water quenching device of molten waste salt. BACKGROUND

[0002] Vanadium-titanium magnetite with high calcium and magnesium impurity content, there are still a large amount of calcium and magnesium impurities in titanium slag after high-temperature smelting, which cannot meet the requirements of the furnace charge for boiling chlorination, and it is more suitable to directly use molten salt chlorination method to treat the titanium slag. The molten salt chlorination process is to add high-titanium slag, petroleum coke and other materials into molten industrial salt, and introduce chlorine gas for reaction to produce titanium tetrachloride flue gas, thereby preparing titanium tetrachloride. Waste molten salt needs to be discharged regularly, and new NaCl and KCl molten salt is heated. Currently, waste molten salt is treated by mixing with quicklime and then filling in a slag yard. Since this method is used, if the waste salt is washed by rainwater and appears to be dissolved and seeped, environmental problems such as soil salinization and surface erosion may still occur. Moreover, with the continuous expansion of the scale, more chlorinated waste salt will inevitably be produced, and the treatment of waste salt has become a necessary requirement for long-term production.

[0003] According to the current scientific research achievements and practical applications, it is confirmed that the waste salt is an extremely valuable resource and energy source. Since the waste salt contains 80% of soluble chlorides, a water treatment method is considered to be used for resource comprehensive utilization after water quenching. The existing water treatment method is not easy to scatter, and the water quenching effect is not good. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims to provide a kind of water quenching device of molten waste salt, it is convenient to water quench molten salt discharged from chlorination furnace chute, promote molten waste salt water quenching, improve its dissolution efficiency.

[0005] The purpose of the utility model can be achieved by the following technical solutions:

[0006] A kind of water quenching device of molten waste salt, including box, dam board and liquid inlet pipe, the box has overflow cavity, overflow cavity is communicated with liquid inlet pipe, the side of overflow cavity has nozzle, the middle part of liquid inlet pipe is connected with the middle part of dam board, and the lower end of dam board extends to the upper side of nozzle.

[0007] In further solutions, the dam board is inclined on the box.

[0008] In further solutions, the liquid inlet pipe is inserted into one end of the dam board.

[0009] In further solutions, the nozzle is a plurality of waist-shaped holes.

[0010] In further solutions, a plurality of waist-shaped holes are arranged side by side on the side of the box.

[0011] Further, the inlet pipe is connected with a flange at the upper end and fixedly connected with the box at the lower end.

[0012] Further, the flange is connected with a delivery pump and a switch valve in sequence through a pipeline.

[0013] Further, the back side of the slag baffle plate opposite to the box is arranged below a chute of the chlorination furnace for discharging the molten waste salt.

[0014] Further, the bottom of the box is welded on a slag flushing tank for recycling the molten waste salt after water quenching.

[0015] Further, the water quenching device is made of titanium material with temperature resistance and corrosion resistance.

[0016] The water quenching device has the advantages that:

[0017] The slag baffle plate of the water quenching device can effectively quickly scatter the high-temperature waste salt at 700-720 DEG C, and the molten waste salt is quickly flushed into the slag flushing tank for dissolution through water spraying of the nozzle, so that the molten waste salt is prevented from being re-stacked after being scattered, the waste salt water after dissolution can be used for related recycling process, and the device is safe and reliable.

[0018] The stable box structure and large flow cross section are convenient to manufacture, low in cost, easy to install, and high in water quenching treatment continuity.

[0019] The spray hole is reasonably designed, the molten salt is effectively broken, the explosion is avoided, and the safe operation of production is ensured.

[0020] The device is made of titanium material and has high temperature resistance and corrosion resistance. DRAWINGS

[0021] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced as follows, and obviously, the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0022] Figure 1 is a front view of a water quenching device for molten waste salt in the embodiments of the present application;

[0023] Figure 2 is a left view of a water quenching device for molten waste salt in the embodiments of the present application;

[0024] In the figure: 1. Box body; 2. Slag baffle; 3. Liquid inlet pipe; 4. Nozzle; 5. Flange. DETAILED DESCRIPTION

[0025] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] like Figure 1 As shown, a water quenching device for molten waste salt includes a housing 1, a slag retaining plate 2, and a liquid inlet pipe 3. The housing 1 has a flow cavity connected to the flow cavity with the liquid inlet pipe 3. A nozzle 4 is provided on one side of the flow cavity. The middle of the liquid inlet pipe 3 is connected to the middle of the slag retaining plate 2, and the lower end of the slag retaining plate 2 extends above the nozzle 4. The shape and structure of the nozzle 4 can be adjusted according to the injection speed and flow rate, and the height of the slag retaining plate 2 can be adapted.

[0027] Its working principle or implementation method is that the box 1 of the water quenching device is arranged inside the water quenching slag flushing pool, and the bottom is welded to the pool, or welded to the pool body through a bracket, or directly supported on the pool through a bracket. When the high-temperature waste salt of 700-720°C falls from the outlet of the furnace chute and falls onto the slag retaining plate 2, the slag retaining plate 2 can effectively and quickly break up the high-temperature waste salt of 700-720°C. The water sprayed by the nozzle 4 can quickly flush the broken-up molten waste salt into the slag flushing pool for dissolution, preventing it from re-accumulating after being broken up. The dissolved waste brine can be used for related recovery processes, and the device is safe and reliable.

[0028] Based on the above operating principle, several structures or embodiments are provided. The housing 1 is a hexahedron composed of six panels, with a closed bottom and sides. This provides a large water flow area, ensuring a consistent spray angle, sufficient water flow, preventing material accumulation and blockage, and ensuring the dispersion of molten salt, while reducing material consumption and investment. All panels are rectangular titanium, facilitating cleaning, installation, and replacement.

[0029] like Figure 2 As shown, the slag blocking plate 2 is placed obliquely on the box body 1. The slag blocking plate 2 is located on the top of the box body 1 and is composed of a panel. It can block the molten salt coming out of the chute over a large area and protect the injection hole of the box body 1 from being blocked by flying slag.

[0030] The liquid inlet pipe 3 is inserted into one end of the slag retaining plate 2. It is welded to the top plate of the tank 1. Its upper end is connected to a flange 5, and its lower end is fixed to the tank 1. The flange 5 is connected to a delivery pump and an on-off valve via pipes. This arrangement ensures that the water quenching device can be replaced if damaged during use without affecting the overall system operation.

[0031] The nozzle 4 is a plurality of waist-shaped holes. The plurality of waist-shaped holes are arranged side by side on the side of the box 1. The opening range is arranged greater than the range of the falling point of the molten salt in the chute; the opening size is calculated according to the required flow and the outlet pressure of the pump after the process water slag ratio, and the jet velocity is controlled to be greater than 15 m / s, and the opening height is determined according to the liquid level of the water quenching and slag flushing tank and the falling point height after the molten salt is scattered.

[0032] The side of the slag baffle 2 away from the box 1 is arranged below the chute for discharging the molten waste salt in the chlorination furnace.

[0033] The bottom of the box 1 is welded on the slag flushing tank for recycling the molten waste salt after water quenching.

[0034] The material of the water quenching device is titanium material which is resistant to temperature and corrosion. Because the on-site environment is severely corrosive, and the PH value of the dissolved salt water after water quenching is about 0.7, the whole water quenching device adopts titanium material, which can resist corrosion.

[0035] Reinforcing ribs can be arranged between the box 1 and the back of the slag baffle 2, further improving the service life of the slag baffle 2 and the like.

[0036] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0037] The basic principles, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A water quenching device for molten waste salt, characterized in that: The invention comprises a box body (1), a slag retaining plate (2) and a liquid inlet pipe (3); the box body (1) has a flow cavity, the flow cavity is connected to the liquid inlet pipe (3), a side surface of the flow cavity is provided with a nozzle (4), the middle portion of the liquid inlet pipe (3) is connected to the middle portion of the slag retaining plate (2), and the lower end of the slag retaining plate (2) extends to above the nozzle (4).

2. The water quenching device for molten waste salt according to claim 1, characterized in that: The slag blocking plate (2) is placed obliquely on the box body (1).

3. The water quenching device for molten waste salt according to claim 1, characterized in that: The liquid inlet pipe (3) is inserted into one end of the slag blocking plate (2).

4. The water quenching device for molten waste salt according to claim 1, characterized in that: The nozzles (4) are multiple groups of waist-shaped holes.

5. The water quenching device for molten waste salt according to claim 4, characterized in that: A plurality of groups of waist-shaped holes are arranged side by side on the side of the box body (1).

6. The water quenching device for molten waste salt according to claim 1, characterized in that: The upper end of the liquid inlet pipe (3) is connected to a flange (5), and the lower end is fixedly connected to the box body (1).

7. The water quenching device for molten waste salt according to claim 6, characterized in that: The flange (5) is sequentially connected to a delivery pump and a switch valve via pipelines.

8. The water quenching device for molten waste salt according to claim 1, characterized in that: The side of the slag retaining plate (2) facing away from the box body (1) is correspondingly arranged below the chute for discharging molten waste salt in the chlorination furnace.

9. The water quenching device for molten waste salt according to claim 1, characterized in that: The bottom of the box (1) is welded to a slag flushing pool for recovering molten waste salt after water quenching.

10. The water quenching device for molten waste salt according to claim 1, characterized in that: The water quenching device is made of heat-resistant and corrosion-resistant titanium.

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