Heating and vaporizing device for recovering phosphorus sludge
By designing a heating and vaporization device for recovering sludge phosphorus and utilizing the volatility of phosphorus and the heating of yellow phosphorus smelting tail gas, the recovery problem in sludge phosphorus treatment and utilization was solved, and efficient phosphorus recovery and environmental protection were achieved.
Patent Information
- Application Number
- CN202422279268.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-19
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2034-09-19
AI Technical Summary
The treatment and utilization of sludge phosphorus is difficult to achieve efficient recovery and there is a risk of environmental pollution, which affects the economic and environmental benefits of yellow phosphorus production.
A heating and vaporization device for recovering sludge phosphorus is designed. The low volatilization temperature of phosphorus is used to heat the sludge phosphorus to make it volatilize, and the phosphorus vapor is recovered through cooling through a spray tower. The yellow phosphorus smelting tail gas is used as the heating source, and the converter rotation speed is controlled by sensors and ring gears to prevent the feed pipe from being blocked.
The rapid and efficient recovery of phosphorus in sludge phosphorus is achieved, the risk of environmental pollution is reduced, and the economic and environmental benefits of yellow phosphorus production are improved.
Smart Images

Figure CN223412450U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical direction of yellow phosphorus production, and specifically relates to a heating and vaporization device for recovering sludge phosphorus. Background Art
[0002] Muddy phosphorus is a major byproduct of yellow phosphorus production and a hazardous solid waste in the phosphorus chemical industry. Muddy phosphorus is produced during the currently common electrothermal process for yellow phosphorus production, accounting for approximately 7-15% of the product. The muddy phosphorus contains between 20-70% elemental phosphorus, making it a highly valuable recovery material. The treatment and utilization of muddy phosphorus is a crucial issue in yellow phosphorus production. It not only impacts phosphorus recovery and production costs in industrial production but, more importantly, can cause significant environmental pollution. Consequently, nearly all domestic yellow phosphorus manufacturers are exploring the treatment and utilization of muddy phosphorus to achieve optimal environmental, economic, and social benefits. Utility Model Content
[0003] The purpose of the present invention is to provide a device for heating and vaporizing recovered sludge phosphorus in response to existing technical problems, so as to solve the problems raised in the above background technology.
[0004] In order to solve the above technical problems, the utility model provides the following technical solutions: a device for heating and vaporizing recovered mud phosphorus, comprising a base, a converter, refractory bricks, and a phosphorus receiving tank, characterized in that: symmetrical supporting wheels are provided on the upper part of the base, a converter is provided on the upper part of the supporting wheels, the left side of the converter is connected to a drive motor through a gearbox, a feed pipe is provided at the center position of the right side of the converter, a slag discharge port is provided on the right side of the converter, refractory bricks are installed along the lower part of the converter, a fireproof cover is provided on the top of the refractory bricks, a burner is provided at the center position corresponding to the bottom of the converter, the burner is connected to a fan through a pipe, a condenser is provided on the upper part of the phosphorus receiving tank, the condensers are connected in series with each other, and a nozzle is provided on the top of the condenser.
[0005] Preferably, an air collecting hood is provided on the base.
[0006] Preferably, a gear ring is provided on the left side of the converter, and an inductor is provided near the gear ring.
[0007] Preferably, an anti-blocking rod is provided at the center of the feed pipe.
[0008] Compared with the prior art, the beneficial effect achieved by the present invention is that the device can quickly and efficiently heat the phosphorus contained in the sludge phosphorus into phosphorus vapor, and precipitate the phosphorus by washing, thereby achieving the purpose of phosphorus recovery. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:
[0010] Figure 1 This is the overall structural diagram of the utility model;
[0011] Figure 2 This is a schematic diagram of the converter structure of the present utility model. DETAILED DESCRIPTION
[0012] The following is a non-limiting detailed description of the technical solution of the present invention in conjunction with preferred embodiments and their accompanying drawings. Obviously, the described embodiments are only a portion of the embodiments of the present invention, and not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.
[0013] like Figure 1-Figure 2 The utility model applies to a heating and vaporization device for recovering mud phosphorus, which includes a base 4, a converter 16, refractory bricks 8, and a phosphorus receiving tank 12, and is characterized in that: symmetrical supporting wheels 9 are provided on the upper part of the base 4, a converter 16 is provided on the upper part of the supporting wheel 9, the left side of the converter 16 is connected to the drive motor 3 through a gearbox, a feed pipe 10 is provided at the center position of the right side of the converter 16, a slag discharge port 15 is provided on the right side of the converter 16, refractory bricks 8 are installed along the lower part of the converter 16, a fireproof cover 17 is provided on the top of the refractory bricks 8, a burner 7 is provided at the center position of the bottom of the converter 16, the burner 7 is connected to the fan 5 through a pipeline, a condenser 13 is provided on the upper part of the phosphorus receiving tank 12, the condensers 13 are connected in series with each other, a nozzle 14 is provided on the upper part of the condenser 13, an air collecting hood 1 is provided on the base 4, a gear ring 6 is provided on the left side of the converter 16, an inductor 2 is provided near the gear ring 6, and an anti-blocking rod 11 is provided at the center position of the feed pipe 10.
[0014] The working principle of the entire utility model is to utilize the low volatilization temperature of phosphorus to heat the mud phosphorus to make the phosphorus volatilize, and then use a spray tower to cool the vapor phosphorus for recovery. The principle is simple and the recovery efficiency is high.
[0015] The combustion material used by the burner 7 is mainly derived from the tail gas produced by yellow phosphorus smelting. The tail gas is used as a heating source to heat the converter 17. The cooperation between the sensor 2 and the ring gear 6 enables the central control room to easily understand the rotation speed of the converter 16 and effectively adjust the speed of the drive motor 3. Of course, an anti-blocking rod 11 is designed at the center position of the feed pipe 10. When the feeding is not smooth or the pressure fluctuates significantly, the anti-blocking rod 11 is inserted into the feed pipe 10 for reciprocating motion, thereby keeping the feed pipe 10 unobstructed and the feeding stable and reliable. At the same time, the same design is adopted for the exhaust pipe to keep the pipeline unobstructed.
[0016] In the description of the present invention, it should be understood that the terms "up", "down", "front", "back", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present invention.
[0017] Finally, it should be pointed out that the above embodiments are intended only to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art will appreciate that modifications may be made to the technical solutions described in the above embodiments, or that some of the technical features may be replaced with equivalents. Such modifications or replacements do not deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.
Claims
1. A device for heating and vaporizing phosphorus recovery mud, comprising a base (4), a converter (16), refractory bricks (8), and a phosphorus receiving tank (12), characterized in that: A symmetrical supporting wheel (9) is provided on the upper part of the base (4), a converter (16) is provided on the upper part of the supporting wheel (9), the left side of the converter (16) is connected to the driving motor (3) through a gearbox, a feeding pipe (10) is provided at the center position of the right side of the converter (16), a slag discharge port (15) is provided on the right side of the converter (16), refractory bricks (8) are installed along the lower part of the converter (16), a fireproof cover (17) is provided on the top of the refractory bricks (8), a burner (7) is provided at the center position of the bottom of the converter (16), the burner (7) is connected to the fan (5) through a pipeline, a condenser (13) is provided on the upper part of the phosphorus receiving tank (12), the condensers (13) are connected in series with each other, and a nozzle (14) is provided on the upper part of the condenser (13).
2. The device for heating and vaporizing sludge phosphorus recovery according to claim 1, characterized in that: A gas collecting hood (1) is provided on the base (4).
3. The device for heating and vaporizing sludge phosphorus recovery according to claim 1, characterized in that: A gear ring (6) is provided on the left side of the converter (16), and an inductor (2) is provided near the gear ring (6).
4. The device for heating and vaporizing sludge phosphorus recovery according to claim 1, characterized in that: An anti-blocking rod (11) is provided at the center of the feed pipe (10).