Flue gas cooling and dedusting treatment system

Abstract

The utility model provides a flue gas cooling and dedusting treatment system which comprises a washing tower and a venturi dust remover, the venturi dust remover is communicated with the bottom of the washing tower, and flue gas enters from the venturi dust remover, is washed by the washing tower and is discharged; a flue gas inlet of the venturi dust remover is provided with a volute spray head, and a baffle plate is arranged in the volute spray head. The utility model has the beneficial effects that the novel venturi cooling dust remover is additionally arranged at the front end of the primary washing tower, and a baffle plate structure is additionally arranged at the outlet of the venturi pipeline, so that efficient cooling and primary dust removal of flue gas are realized. The baffle plates can effectively disperse and slow down the flow velocity of flue gas, so that the flue gas is in full contact with a cooling medium, the temperature is quickly reduced, and the damage of high temperature to follow-up equipment is reduced; meanwhile, the special structure can promote inertial separation of particulate matters, and the dust removal burden of the first-stage washing tower is relieved.

Description

Technical Field

[0001] The utility model relates to the field of chemical equipment, in particular to a flue gas cooling and dust removal processing system. Background Art

[0002] The difficulty and complexity of handling the high-temperature and high-dust flue gas generated by the polycarbonate salt incinerator during operation cannot be ignored. This flue gas characteristic poses a major challenge to the subsequent scrubber system, which is specifically manifested in the following aspects:

[0003] First, the high concentration of dust particles in the high-temperature flue gas can easily cause erosion and deposition on the packing layer inside the scrubber during high-speed flow. Over time, these dust particles will gradually accumulate to form a dense blockage layer, which seriously hinders the smooth flow of flue gas. This not only causes the pressure inside the scrubber to increase, but may also cause local overheating or corrosion, further aggravating the wear and aging of the equipment.

[0004] Secondly, the blockage of the packing layer will significantly reduce the washing efficiency. The original intention of the design of the scrubber is to effectively remove pollutants in the flue gas through full contact between the packing layer and the scrubbing liquid. However, once the packing layer is blocked, the scrubbing liquid will be difficult to penetrate and evenly distribute to the entire packing layer, resulting in a significant reduction in the washing effect. This not only fails to effectively remove dust particles and harmful gases in the flue gas, but may also cause waste of scrubbing liquid and environmental pollution.

[0005] Furthermore, the shortening of the scrubber operation cycle has a profound impact on the overall stability and economy of the incinerator system. Frequent shutdowns for cleaning and replacement of fillers not only increase maintenance costs and manpower input, but may also affect the execution of production plans and the continuous supply of products due to excessive downtime. In addition, frequent equipment start-ups and stops may also cause fluctuations in key parameters such as the furnace temperature and combustion efficiency of the incinerator, further affecting the stability and reliability of the system.

[0006] Therefore, in order to solve the problem of high temperature and high dust content flue gas generated by polycarbonate salt incinerator, we need to take a series of comprehensive measures to explore and implement efficient flue gas dust removal technology. This will not only help improve the overall operating efficiency and stability of the incinerator, but also effectively extend the life of the equipment and reduce maintenance costs. Utility Model Content

[0007] The utility model aims to provide a flue gas cooling and dust removal system to solve the problem that the flue gas generated by the polycarbonate salt incinerator is high in temperature and contains a large amount of smoke dust.

[0008] To achieve the above purpose, the utility model provides a flue gas cooling and dust removal processing system, including a washing tower and a venturi dust collector, the venturi dust collector is connected to the bottom of the washing tower, the flue gas enters from the venturi dust collector, enters the washing tower for washing and is discharged;

[0009] A volute nozzle is arranged at the smoke inlet of the Venturi dust collector, and a baffle is arranged inside the volute nozzle.

[0010] Furthermore, the volute nozzle and the washing tower are provided with a washing water inlet pipe.

[0011] Furthermore, a washing water spray disc is arranged inside the washing tower, and the washing water spray disc is arranged at the end of the washing water inlet pipe.

[0012] Furthermore, a packing layer is provided between the washing water spraying disc and the smoke inlet of the washing tower (1).

[0013] Furthermore, water stop valves are respectively provided at the positions where the washing water inlet pipe is connected to the volute nozzle and the washing tower.

[0014] As a preferred solution, the baffles are arranged equidistantly, and the spacing between adjacent baffles is 50 mm.

[0015] Furthermore, a smoke outlet is arranged at the top of the washing tower.

[0016] The beneficial effects of the utility model are:

[0017] 1. The utility model adds a new type of Venturi cooling dust collector at the front end of the first-stage washing tower, and adds a baffle structure at the outlet of the Venturi pipe, so as to achieve efficient cooling and preliminary dust removal of the flue gas. The baffle can not only effectively disperse and slow down the flue gas flow rate, so that the flue gas can fully contact with the cooling medium, quickly reduce the temperature, and reduce the damage of high temperature to subsequent equipment; at the same time, its special structure can also promote the inertial separation of particulate matter and reduce the dust removal burden of the first-stage washing tower.

[0018] 2. The utility model redesigns the spray system in the tower, optimizes the configuration of the packing layer, and adjusts key components such as the gas distribution plate, so that the gas-liquid contact in the washing tower is more uniform and sufficient, and the washing efficiency and dust removal effect are improved. These improvement measures not only enhance the washing tower's ability to capture particulate matter, but also reduce equipment wear caused by local overheating or uneven flushing, thereby significantly extending the service life of the washing tower. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to make the content of the utility model easier to understand, the utility model is further described in detail according to specific embodiments and in conjunction with the accompanying drawings.

[0020] Figure 1A schematic structural diagram of the utility model.

[0021] The reference numerals in the accompanying drawings are:

[0022] 1. Scrubber; 2. Venturi dust collector; 3. Volute nozzle; 4. Baffle; 5. Scrubber water inlet pipe; 6. Scrubber water spray disc; 7. Packing layer; 8. Flue gas outlet; 9. Water stop valve. DETAILED DESCRIPTION

[0023] To illustrate the features of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments.

[0024] Example:

[0025] See also Figure 1 The embodiment of the utility model provides a flue gas cooling and dust removal treatment system, including a washing tower 1 and a venturi dust collector 2. The venturi dust collector 2 is connected to the bottom of the washing tower 1. The flue gas enters from the venturi dust collector 2, passes through the washing tower 1 for washing and is discharged; a volute nozzle 3 is provided at the flue gas inlet of the venturi dust collector 2, and a baffle 4 is provided inside the volute nozzle 3. The baffles 4 are equidistantly arranged, and the spacing between adjacent baffles 4 is 50 mm. In this embodiment, a new type of venturi cooling dust collector is added to the front end of the first-level washing tower, and a baffle structure is added at the outlet of the venturi pipe, so as to realize efficient cooling and preliminary dust removal of the flue gas. The baffle can not only effectively disperse and slow down the flow rate of the flue gas, so that the flue gas is fully in contact with the cooling medium, quickly reduce the temperature, and reduce the damage of high temperature to subsequent equipment; at the same time, its special structure can also promote the inertial separation of particulate matter and reduce the dust removal burden of the first-level washing tower.

[0026] The device is provided with a washing water inlet pipe 5 at the volute nozzle 3 and the washing tower 1. A water stop valve 9 is respectively provided at the position where the washing water inlet pipe 5 connects the volute nozzle 3 and the washing tower 1, so as to control the water inlet amount of the washing water and realize the continuous supply of the washing water. A washing water spraying disc 6 is provided inside the washing tower 1, and the washing water spraying disc 6 is provided at the end of the washing water inlet pipe 5. A packing layer 7 is provided between the washing water spraying disc 6 and the smoke inlet of the washing tower 1, and a smoke outlet 8 is provided at the top of the washing tower 1. By redesigning the spraying system in the tower, optimizing the configuration of the packing layer, and adjusting key components such as the gas distribution plate, the gas-liquid contact in the washing tower is made more uniform and sufficient, and the washing efficiency and dust removal effect are improved. These improvement measures not only enhance the ability of the washing tower to capture particulate matter, but also reduce the equipment wear caused by local overheating or uneven flushing, thereby significantly extending the service life of the washing tower.

[0027] The above embodiments and drawings are only used to illustrate the technical solution of the utility model, and are not intended to limit the utility model. The utility model is described in detail with reference to the preferred embodiments. It should be understood by ordinary technicians in this field that the changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the utility model do not deviate from the purpose of the utility model and should also fall within the scope of protection of the claims of the utility model. Other related technical structures not fully disclosed in the utility model are prior art in the field.

Claims

1. A flue gas cooling and dust removal system, characterized in that: It comprises a washing tower (1) and a venturi dust collector (2), wherein the venturi dust collector (2) is connected to the bottom of the washing tower (1), and the flue gas enters from the venturi dust collector (2), passes through the washing tower (1), is washed, and is discharged; It is characterized in that A volute nozzle (3) is provided at the flue gas inlet of the Venturi dust collector (2), and a baffle (4) is provided inside the volute nozzle (3).

2. The flue gas cooling and dust removal system according to claim 1 is characterized in that: The volute nozzle (3) and the washing tower (1) are provided with a washing water inlet pipe (5).

3. The flue gas cooling and dust removal system according to claim 2 is characterized in that: A washing water spraying disc (6) is arranged inside the washing tower (1), and the washing water spraying disc (6) is arranged at the end of the washing water inlet pipe (5).

4. The flue gas cooling and dust removal system according to claim 3 is characterized in that: A packing layer (7) is arranged between the washing water spraying disc (6) and the smoke inlet of the washing tower (1).

5. The flue gas cooling and dust removal system according to claim 2 is characterized in that: Water stop valves (9) are respectively provided at the positions where the washing water inlet pipe (5) is connected to the volute nozzle (3) and the washing tower (1).

6. The flue gas cooling and dust removal system according to claim 1 is characterized in that: The baffles (4) are arranged at equal intervals, and the spacing between adjacent baffles (4) is 50 mm.

7. The flue gas cooling and dust removal system according to claim 1 is characterized in that: A flue gas outlet (8) is provided at the top of the scrubbing tower (1).

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