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Cyclone reactor and dual-alkali desulphurization and dedusting process

A desulfurization and dedusting, reactor technology, applied to chemical instruments and methods, separation methods, settling tanks, etc., can solve the problems of thickening of circulating fluid, fouling of dedusting and desulfurization towers, etc., and achieve simple structure and good use effect

Inactive Publication Date: 2013-01-02
GONGYI LIANGHUI ENVIRONMENTAL PROTECTION MACHINERY EQUIP FACTORY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003]This invention aims at the existing flue gas desulfurization and dust removal process, which can not fully react to the wastewater solution and cause Ca(OH)2 in the circulating water To solve the problem of thickening of the circulating fluid and fouling of the dust removal and desulfurization tower, a cyclone reactor and a desulfurization and dust removal process using the cyclone reactor are provided

Method used

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  • Cyclone reactor and dual-alkali desulphurization and dedusting process
  • Cyclone reactor and dual-alkali desulphurization and dedusting process
  • Cyclone reactor and dual-alkali desulphurization and dedusting process

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Embodiment 1

[0025] Embodiment 1: see Figure 4 and Figure 5 , The cyclone reactor includes a cylinder body 1, and a sewage liquid inlet 2 is arranged at the lower end of the cylinder body 1, and the sewage liquid inlet 2 is connected to the interior of the cylinder body 1 along a tangent. A liquid outlet 3 is arranged on the upper part of the cylinder 1, and a circulating fluid inlet 4 is arranged on the top of the cylinder 1. At the same time, an automatic feeding device is arranged on the top of the cylinder body 1 .

[0026] The automatic feeding device includes a support pipe 6 communicating with the barrel 1, and the support pipe 6 can be located on the upper side of the circulation liquid inlet, or can be adjacent to the circulation liquid inlet. The upper end of the support tube 6 is provided with a hopper 9, and the hopper 9 is filled with Ca(OH) 2 Dust12. The middle part of the support pipe 6 is horizontally equipped with a rotating shaft 7 through a bearing, and a shifting ...

Embodiment 2

[0027] Example 2: see figure 1 , a dual-alkali desulfurization and dedusting process. The NaOH solution in the rich solution pool is pumped to the top of the dedusting and desulfurizing tower through the desulfurizing pump, and enters the inner cavity from the top of the dedusting and desulfurizing tower to form a spray shape. The NaSO formed after reacting with the original flue gas 3 and Na 2 SO 4After the sewage solution, it is discharged from the sewage outlet at the bottom of the dedusting desulfurization tower; the original flue gas enters the inner cavity through the bottom of the dedusting desulfurization tower, and after reacting with the sprayed lye, the clean gas is discharged from the top of the dedusting desulfurization tower. The clean gas discharge port of the dedusting and desulfurization tower is provided with a bypass pipe and a valve, and the bypass pipe leads part of the original flue gas back to the flue gas inlet.

[0028] NaSO 3 and Na 2 SO 4 The s...

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Abstract

The invention brings forward a cyclone reactor and a dual-alkali desulphurization and dedusting process. The cyclone reactor is used in the process, power generated by using a difference between a high water level and a low water level allows sewage to enter into the inner cavity of the cyclone reactor along the bottom of the cyclone reactor and to form upward rotational flow, then the sewage is discharged, and therefore, the purpose of power-free full stirring is achieved. In cyclic process, continuous quantitative feeding is carried out by an automatic feeding apparatus according to sulfur content in original flue gas, so the purpose of full reaction of NaSO3 and Na2SO4 in sewage to produce deposition is achieved. Limitation of blanking amount of the automatic feeding apparatus can be realized through adjusting of the rotating speed of a motor, and the cyclone reactor has a simple structure and a good usage effect.

Description

technical field [0001] The invention belongs to the technical field of flue gas desulfurization and dust removal, and in particular relates to a cyclone reactor and a double-alkali desulfurization and dust removal process. Background technique [0002] For the desulfurization and dust removal treatment of the original flue gas, the reverse absorption method of spraying lye in the dust removal and desulfurization tower is usually used at present. The traditional way is to use Ca(OH) 2 SO in lye and raw flue gas 2 Ca(SO3) is generated after the reaction 2 and CaSO 2 Precipitation due to the presence of Ca(OH) in the solution 2 , Ca (SO 3 ) 2 and CaSO 4 Suspended and precipitated particles cause the dust removal and desulfurization tower to fail to work normally due to serious fouling. Absorption of SO by double alkali method 2 The essence of the method is to treat SO with NaOH solution 2 Absorb to generate NaSO 3 and Na 2 SO 4 Sewage solution, when using the react...

Claims

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Application Information

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IPC IPC(8): B01D53/78B01D53/50B01D21/02
Inventor 李学良
Owner GONGYI LIANGHUI ENVIRONMENTAL PROTECTION MACHINERY EQUIP FACTORY