A water collecting chamber for phosphorus ammonium tail gas dust liquid separation

Abstract

The utility model discloses a kind of water collecting chambers for phosphorus-ammonium tail gas dust liquid separation, belong to phosphorus-ammonium production tail gas treatment equipment technical field, including water collecting chamber body, the inside of water collecting chamber body is provided with horizontal baffle, and water collecting chamber body is separated into two layers by horizontal baffle, upper layer is separated into third chamber and fourth chamber by second vertical baffle, lower layer is divided into first chamber and second chamber by first vertical baffle, and upper layer inner wall is provided with cooling assembly, the side of water collecting chamber body is provided with recovery assembly, phosphorus-ammonium tail gas is processed by this water collecting chamber, can effectively remove dust and droplet in tail gas, greatly reduce the phenomenon that tail gas chimney carries dust and foam, reduce the pollution to atmosphere environment, meet the increasingly stringent environmental protection requirement, while, useful material in tail gas, such as phosphorus-ammonium etc. are recycled, reduce the waste of production raw materials, improve the utilization of resources, thereby reduce production cost.

Description

Technical Field

[0001] This utility model relates to the technical field of tail gas treatment equipment for ammonium phosphate production, and more specifically to a water collection chamber for separating dust and liquid in ammonium phosphate tail gas. Background Technology

[0002] Fertilizer tail gas refers to the gas emitted during the production of ammonium phosphate (i.e., ammonium phosphate). Fertilizer is mainly used in the production of fertilizers, and its production process involves chemical reactions such as acid hydrolysis of phosphate rock and ammonia absorption.

[0003] During the production of ammonium phosphate, exhaust gas containing a large amount of ammonium phosphate dust and liquid droplets is generated. If this exhaust gas is directly emitted through a chimney, the dust and liquid droplets will cause serious air pollution and fail to meet environmental emission requirements. At the same time, the ammonium phosphate component in the exhaust gas is a valuable production raw material. Existing technologies lack effective treatment devices to recover it, resulting in the waste of ammonium phosphate resources, increased production costs, and difficulty in effectively solving the problem of dust and droplets carried by exhaust gas chimneys. It is impossible to balance environmental and economic benefits. Utility Model Content

[0004] The purpose of this invention is to solve the problem of dust and foam carried in exhaust gas chimneys, and to provide a water collection chamber for separating dust and liquid in ammonium phosphate exhaust gas.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A water collection chamber for separating ammonium phosphate tail gas dust and liquid includes a water collection chamber body. The interior of the water collection chamber body is provided with a horizontal partition, which divides the interior of the water collection chamber body into upper and lower layers. The upper layer is divided into a third chamber and a fourth chamber by a second vertical partition, and the lower layer is divided into a first chamber and a second chamber by a first vertical partition. A cooling component is provided on the inner wall of the upper layer. A recovery component is provided on one side of the water collection chamber body. An air inlet connected to an ammonium phosphate tail gas emission pipe is provided on one side of the bottom of the water collection chamber body, and an air outlet connected to a chimney is provided on one side of the top of the water collection chamber body.

[0006] As a further description of the above technical solution, a baffle is provided in the first chamber, and a transverse adsorption plate fixed to one side of the first vertical partition is provided on the top of the baffle.

[0007] As a further description of the above technical solution, the bottom of the first vertical partition is fixedly connected to a longitudinal adsorption plate fixed to the bottom of the inner cavity of the water collection chamber, and a through groove is opened on one side of the bottom of the horizontal partition, and a filter plate is fixedly connected in the through groove.

[0008] As a further description of the above technical solution, the cooling component includes cooling channels provided in the inner walls of the third and fourth chambers, a water inlet pipe connected to the water inlet end of the cooling channel, and a water outlet pipe connected to the water outlet end of the cooling channel. The water inlet pipe is equipped with a flow control valve.

[0009] As a further description of the above technical solution, the recycling component includes a drain pipe fixedly connected to one side of the water collection chamber body, and a recycling pool disposed on one side of the water collection chamber body, wherein the fourth chamber is connected to the recycling pool through the drain pipe.

[0010] As a further description of the above technical solution, the horizontal partition is inclined toward the drain pipe, and the inclination angle is 5-10°.

[0011] As a further description of the above technical solution, both the transverse adsorption plate and the longitudinal adsorption plate are made of polypropylene.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: The treatment of ammonium phosphate tail gas in this water collection chamber effectively removes dust and droplets, greatly reducing the phenomenon of dust and mist carried by the tail gas chimney, thus reducing pollution to the atmospheric environment and meeting increasingly stringent environmental protection requirements. At the same time, it also recovers useful substances in the tail gas, such as ammonium phosphate, reducing the waste of production raw materials, improving resource utilization, thereby reducing production costs, ensuring maximum dust-liquid separation efficiency, and achieving efficient recovery of ammonium phosphate resources and tail gas purification, thus balancing environmental protection and economic benefits. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of a water collection chamber for separating ammonium phosphate tail gas dust and liquid.

[0014] Figure 2 This is a schematic diagram of the internal cooling component structure of a water collection chamber body for separating ammonium phosphate tail gas dust and liquid.

[0015] Figure 3 This is a schematic diagram of the internal structure of the water collection chamber body of a water collection chamber for separating ammonium phosphate tail gas dust and liquid.

[0016] Reference numerals: 1. Water collection chamber body; 2. Cooling component; 21. Water inlet pipe; 22. Cooling channel; 23. Water outlet pipe; 3. Air inlet; 4. Air outlet; 5. Recovery component; 51. Drain pipe; 52. Recovery tank; 6. Horizontal partition; 7. First vertical partition; 8. Second vertical partition; 9. Baffle; 10. Horizontal adsorption plate; 11. Vertical adsorption plate; 12. First chamber; 13. Second chamber; 14. Third chamber; 15. Fourth chamber; 16. Filter plate. Detailed Implementation

[0017] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the disclosure of the utility model more thorough and comprehensive.

[0018] This utility model provides a water collection chamber for separating phosphate ammonium tail gas dust and liquid. Please refer to [reference needed]. Figures 1-3 As shown, the device includes a water collection chamber body 1. A horizontal partition 6 is installed inside the water collection chamber body 1, dividing the interior of the water collection chamber body 1 into upper and lower layers. The upper layer is divided into a third chamber 14 and a fourth chamber 15 by a second vertical partition 8. The lower layer is divided into a first chamber 12 and a second chamber 13 by a first vertical partition 7. A baffle 9 is installed inside the first chamber 12. A transverse adsorption plate 10 is fixed to one side of the first vertical partition 7 at the top of the baffle 9. The bottom of the first vertical partition 7 is fixedly connected to... A longitudinal adsorption plate 11 is fixed to the bottom of the inner cavity of the water collection chamber body 1. Both the transverse adsorption plate 10 and the longitudinal adsorption plate 11 are made of polypropylene. A through groove is opened on one side of the bottom of the horizontal partition 6, and a filter plate 16 is fixedly connected in the through groove. A cooling component 2 is provided on the upper inner wall. A recovery component 5 is provided on one side of the water collection chamber body 1. An air inlet 3 connected to the phosphorus ammonium tail gas emission pipe is provided on one side of the bottom of the water collection chamber body 1. An air outlet 4 connected to the chimney is provided on one side of the top of the water collection chamber body 1.

[0019] In this embodiment, the ammonium phosphate exhaust gas enters the first chamber 12 of the water collection chamber body 1 through the air inlet 3. As the airflow passes through the baffle 9 and the transverse adsorption plate 10, the exhaust gas velocity decreases. Most of the dust passes below the transverse adsorption plate 10 and moves towards the bottom of the second chamber 13, partially settling. When it passes the longitudinal adsorption plate 11, the airflow further descends and turns 180° into the second chamber 13. The dust in the airflow tilts downwards and impacts under the inertia of gravity, causing the larger dust particles to be further impacted by gravity and the obstruction of the longitudinal adsorption plate 11. The exhaust gas, after being treated in the lower first chamber 12 and second chamber 13, enters the corresponding upper third chamber 14 through the connecting holes of the filter plate 16 on the horizontal partition, and then enters the fourth chamber 15. The third chamber 14 and the fourth chamber 15 are condensation chambers, which cause the water vapor and ammonium phosphate components in the exhaust gas to condense into droplets. The droplets fall to the bottom of the upper corresponding chamber under the action of gravity, and flow to the drain pipe 51 under the guidance of the inclined horizontal partition 6 structure. The exhaust gas enters the recycling tank 52 for recycling through the drain pipe 51, and is discharged into the chimney through the exhaust port 4.

[0020] Furthermore, the cooling component 2 includes a cooling channel 22 provided on the inner wall of the third chamber 14 and the fourth chamber 15, a water inlet pipe 21 connected to the water inlet end of the cooling channel 22, and a water outlet pipe 23 connected to the water outlet end of the cooling channel 22. The water inlet pipe 21 is equipped with a flow control valve. In use, cooling water is introduced into the cooling channel 22 through the water inlet pipe 21, and the flow control valve is used to adjust the flow rate of the cooling water to control the cooling rate. This causes the exhaust gas to be cooled down under the action of the cooling component 2 on the inner wall of the third chamber 14 and the fourth chamber 15, and the water vapor and ammonium phosphate components in it condense into droplets. The purified exhaust gas is discharged through the exhaust port 4.

[0021] Furthermore, the recycling component 5 includes a drain pipe 51 fixedly connected to one side of the water collection chamber body 1, and a recycling tank 52 disposed on one side of the water collection chamber body 1. The fourth chamber 15 is connected to the recycling tank 52 through the drain pipe 51. The horizontal partition 6 is inclined toward the drain pipe 51 at an angle of 5-10°. In use, the inclined setting of the horizontal partition 6 facilitates the condensed water droplets to slide down through the horizontal partition 6 into the drain pipe 51 and into the recycling tank 52. The ammonium phosphate solution in the recycling tank 52 continuously accumulates. When the ammonium phosphate density in the recycling tank 52 reaches the set value, the valve is opened, and the high-concentration ammonium phosphate solution is transported to the ammonium phosphate production system for recycling through the recycling pipeline.

[0022] The working principle of this utility model is as follows: During use, the phosphate exhaust gas enters the first chamber 12 of the water collection chamber body 1 through the air inlet 3. When the airflow passes through the baffle 9 and the horizontal adsorption plate 10, the exhaust gas velocity decreases. Most of the dust passes below the horizontal adsorption plate 10 and moves towards the bottom of the second chamber 13, where it partially settles. When it passes through the vertical adsorption plate 11, the airflow further descends and turns 180° into the second chamber 13. The dust in the airflow tilts and impacts downwards under the inertia of gravity, causing the larger dust-liquid media to fall off under the obstruction of gravity and the vertical adsorption plate 11. The exhaust gas, after being treated by the lower first chamber 12 and the second chamber 13, enters the corresponding upper third chamber 14 through the connecting holes of the filter plate 16 on the horizontal partition, and then passes through the second vertical partition. The obstruction at 8 further reduces the wind speed and increases the residence time of the exhaust gas in the upper layer. Cooling water is introduced into the cooling channel 22 through the water inlet pipe 21. The flow rate of the cooling water is adjusted by the flow control valve to control the cooling rate. The exhaust gas temperature is reduced by the cooling components 2 on the inner walls of the third chamber 14 and the fourth chamber 15. The water vapor and ammonium phosphate components in the exhaust gas condense into droplets. The droplets fall to the bottom of the corresponding upper chamber under the action of gravity. Under the guidance of the inclined horizontal baffle 6 structure, they flow to the drain pipe 51 and enter the recovery tank 52 through the drain pipe 51. The ammonium phosphate solution in the recovery tank 52 accumulates continuously. When the ammonium phosphate density in the recovery tank 52 reaches the set value, the valve is opened, and the high-concentration ammonium phosphate solution is transported to the ammonium phosphate production system for recycling through the recovery pipeline. The treated exhaust gas enters the chimney for emission through the exhaust port 4.

[0023] The present invention has been described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvement made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, shall be within the protection scope of the present invention.

Claims

1. A water collection chamber for separating phosphate ammonium tail gas dust and liquid, characterized in that: The system includes a water collection chamber body (1), which is equipped with a horizontal partition (6) inside. The horizontal partition (6) divides the interior of the water collection chamber body (1) into upper and lower layers. The upper layer is divided into a third chamber (14) and a fourth chamber (15) by a second vertical partition (8). The lower layer is divided into a first chamber (12) and a second chamber (13) by a first vertical partition (7). A cooling component (2) is provided on the inner wall of the upper layer. A recovery component (5) is provided on one side of the water collection chamber body (1). An air inlet (3) connected to a phosphorus ammonium tail gas emission pipe is provided on one side of the bottom of the water collection chamber body (1). An air outlet (4) connected to a chimney is provided on one side of the top of the water collection chamber body (1).

2. A water collecting chamber for phosphorus ammonium tail gas dust liquid separation according to claim 1, characterized in that: A baffle (9) is provided in the first chamber (12), and a transverse adsorption plate (10) fixed on one side of the first vertical partition (7) is provided on the top of the baffle (9).

3. A water collecting chamber for phosphorus ammonium tail gas dust liquid separation according to claim 1, characterized in that: The bottom of the first vertical partition (7) is fixedly connected to a longitudinal adsorption plate (11) fixed to the bottom of the inner cavity of the water collection chamber body (1). A through groove is opened on one side of the bottom of the horizontal partition (6), and a filter plate (16) is fixedly connected in the through groove.

4. The water collecting chamber for separating phosphorus ammonium tail gas dust and liquid according to claim 1, characterized in that: The cooling component (2) includes a cooling channel (22) with the inner walls of the third chamber (14) and the fourth chamber (15), an inlet pipe (21) connected to the inlet end of the cooling channel (22), and an outlet pipe (23) connected to the outlet end of the cooling channel (22). The inlet pipe (21) is equipped with a flow control valve.

5. A water collection chamber for use in the separation of phosphonamidite tail gas dust according to claim 1, characterized in that: The recycling assembly (5) includes a drain pipe (51) fixedly connected to one side of the water collection chamber body (1) and a recycling pool (52) disposed on one side of the water collection chamber body (1). The fourth chamber (15) and the recycling pool (52) are connected through the drain pipe (51).

6. A water collection chamber for use in the separation of phosphonamidite tail gas dust according to claim 1, characterized in that: The horizontal partition (6) is inclined toward the drain pipe (51) at an angle of 5-10°.

7. A water collection chamber for use in the separation of phosphonium tail gas dust from a liquid according to claim 2, characterized in that: Both the transverse adsorption plate (10) and the longitudinal adsorption plate (11) are made of polypropylene.

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