CN215505650U

CN215505650U - Novel gypsum rotational flow system

Info

Publication number: CN215505650U
Application number: CN202121655463.3U
Authority: CN
Inventors: 宫超; 罗树林; 张国斌; 于涛
Original assignee: Huaneng Yimin Coal and Electricity Co Ltd
Current assignee: Huaneng Yimin Coal and Electricity Co Ltd
Priority date: 2021-07-21
Filing date: 2021-07-21
Publication date: 2022-01-14
Anticipated expiration: 2031-07-21

Abstract

A novel gypsum rotational flow system. The gypsum cyclone station in the prior art has poor separation effect, can not reduce the density of gypsum slurry quickly, and can block the gap of the filter cloth of the vacuum belt conveyor. The utility model comprises the following components: swirler entry header tank (4), swirler entry header tank left end install manometer A (2), manometer B (3) respectively, swirler entry header tank right-hand member install in proper order through the valve respectively and be equipped with the son A of whirl (5), the son B of whirl (7), the son C of whirl (9), the son A of whirl go up the export and be connected with overflow header tank (1) through the pipeline, the son A of whirl under exit linkage dirt mouth A (6), dirt mouth A pass through the pipeline and be connected with underflow header tank (11), dirt mouth A be the cylinder structure, its inner diameter size is 21-26mm, swirler entry header tank bottom install the inlet tube, the inner diameter of inlet tube be 100 mm. The utility model is used for a novel gypsum rotational flow system.

Description

Novel gypsum rotational flow system

Technical Field

The utility model relates to the technical field of coal power plant equipment, in particular to a novel gypsum rotational flow system.

Background

Two-stage dewatering system is generally taken in the discharge of wet flue gas desulfurization system gypsum thick liquid, one-level dewatering system is gypsum thick liquid whirl station, second grade dewatering system is vacuum belt feeder system, gypsum comprehensive utilization produces after the gypsum thick liquid dehydration, worsen because of the gypsum thick liquid quality when desulfurization system, gypsum dewatering system can't normally discharge the gypsum, lead to gypsum thick liquid density sharp increase, threaten desulfurization system safe operation, the gypsum whirl station separation effect of prior art is poor at present, gypsum thick liquid density can not be reduced fast, make vacuum belt feeder filter cloth space block up.

Disclosure of Invention

The utility model aims to provide a novel gypsum rotational flow system, which can quickly reduce the density of gypsum slurry in an absorption tower system and finish the quality adjustment of the gypsum slurry in a short time.

The above purpose is realized by the following technical scheme:

a novel gypsum rotational flow system, which comprises: swirler entry header tank, swirler entry header tank left end install manometer A, manometer B respectively, swirler entry header tank right-hand member install whirl son A, whirl son B, whirl son C respectively through the valve in proper order, whirl son A go up the export and be connected with the overflow header tank through the pipeline, whirl son A under the exit linkage dirt sand nozzle A, dirt sand nozzle A pass through the pipeline and be connected with the underflow header tank, dirt sand nozzle A be the cylinder structure, its internal diameter size is 21-26mm, swirler entry header tank bottom install the inlet tube, the internal diameter of inlet tube be 100mm, pressure sensor connection control system.

The novel gypsum rotational flow system is characterized in that an upper outlet of the rotational flow element B is connected with the overflow header through a pipeline, a lower outlet of the rotational flow element B is connected with a dust and sand nozzle B, and the dust and sand nozzle B is connected with the underflow header through a pipeline.

The novel gypsum rotational flow system is characterized in that an upper outlet of the rotational flow sub C is connected with the overflow header through a pipeline, a lower outlet of the rotational flow sub C is connected with the dust and sand nozzle C, and the dust and sand nozzle C is connected with the underflow header through a pipeline.

Has the advantages that:

1. the novel gypsum rotational flow station can quickly reduce the density of gypsum slurry, completes the quality adjustment of the gypsum slurry in a short time, effectively improves the gypsum rotational flow separation effect, and avoids the gap blockage of filter cloth of a vacuum belt conveyor.

2. The side wall of the cyclone inlet liquid collecting box is provided with 3 groups of outlet pipes, the outlet pipes are provided with valves to be connected with the cyclone, the number of the operated cyclone is controlled by the valves, the outlet of the cyclone is divided into an overflow pipe and an underflow pipe, the underflow pipe is connected with a sand settling nozzle and enters the underflow collecting box of the gypsum cyclone through a dust and sand nozzle, wherein the overflow collecting box of the gypsum cyclone is required to be recycled in a desulfurization system, the cost is saved, and the underflow collecting box of the gypsum cyclone quickly enters a vacuum belt conveyor for dehydration and discharge, thereby improving the working efficiency.

3. The dust sand nozzle A, the dust sand nozzle B and the dust sand nozzle C are all of cylindrical structures, the inner diameter size of the dust sand nozzle A, the dust sand nozzle B and the dust sand nozzle C is 21-26mm, the dust sand nozzle A, the dust sand nozzle B and the dust sand nozzle C are enlarged by 3-5mm compared with a common dust sand nozzle, the underflow flow is increased, the distribution ratio of the overflow of a cyclone to the underflow slurry is changed, and the dust sand nozzle A, the dust sand nozzle B and the dust sand nozzle C are formed by the steps of 1: 3 to 1: and 4, gypsum can be discharged out quickly after the underflow flow is increased, the density of gypsum slurry of the absorption tower system is reduced, and the quality adjustment of the gypsum slurry is completed in a short time.

Description of the drawings:

FIG. 1 is a schematic structural diagram of the present invention.

Wherein: 1. overflow collection box, 2, pressure gauge A, 3, pressure sensor, 4, cyclone inlet collection box, 5, cyclone A, 6, dust and sand nozzle A, 7, cyclone B, 8, dust and sand nozzle B, 9, cyclone C, 10, dust and sand nozzle C, 11, and underflow collection box.

The specific implementation mode is as follows:

example 1:

a novel gypsum rotational flow system, which comprises: swirler entry collection liquid tank 4, swirler entry collection liquid tank left end install manometer A2, manometer B3 respectively, swirler entry collection liquid tank right-hand member install the son A5 of whirl, the son B7 of whirl, the son C9 of whirl respectively through the valve in proper order, the son A of whirl go up the export and be connected with overflow collection box 1 through the pipeline, the son A of whirl under exit linkage dirt sand mouth A6, dirt sand mouth A pass through the pipeline and be connected with underflow collection box 11, dirt sand mouth A be the cylinder structure, its inner diameter size is 21-26mm, swirler entry collection liquid tank bottom install the inlet tube, the internal diameter of inlet tube be 100mm, pressure sensor connection control system.

Example 2:

according to the novel gypsum rotational flow system of embodiment 1, the upper outlet of the rotational flow element B is connected with the overflow header through a pipeline, the lower outlet of the rotational flow element B is connected with a dust and sand nozzle B8, and the dust and sand nozzle B is connected with the underflow header through a pipeline.

Example 3:

according to the novel gypsum rotational flow system of embodiment 1, the upper outlet of the rotational flow element C is connected with the overflow header through a pipeline, the lower outlet of the rotational flow element C is connected with a dust and sand nozzle C10, and the dust and sand nozzle C is connected with the underflow header through a pipeline.

The novel gypsum rotational flow system realizes solid-liquid separation under the action of centrifugal force, gypsum slurry is pumped into a liquid collecting tank at the inlet of a cyclone by a gypsum discharge pump, the liquid collecting tank is externally connected with three rotational flow pieces, high-pressure gypsum slurry enters the rotational flow pieces and then rotates at high speed in the rotational flow pieces to generate centrifugal force, smaller particulate matters enter an overflow tank of the gypsum cyclone, larger particulates enter a rear flow tank of the gypsum cyclone, wherein the upper outlet (overflow) and the lower outlet (rear flow) of the rotational flow pieces can regulate flow, the caliber of a dust and sand nozzle at the lower outlet of the rotational flow pieces is increased, the flow of the lower outlet is changed, the quality of slurry regulation is realized, the dust and sand nozzle is arranged below the rotational flow pieces in the gypsum cyclone, the caliber of the dust and sand nozzle is 21-26mm, and the volume distribution of the upper opening and the lower opening of the rotational flow pieces can be changed;

the gypsum cyclone station is structurally characterized in that an inlet liquid collecting tank of a cyclone is arranged, 1 pressure gauge is arranged on the liquid collecting tank, a pressure sensor (connected with a control system) is arranged, an inlet pipe is arranged below the liquid collecting tank, outlet pipes (generally 3 in number) are arranged on the four walls of the liquid collecting tank, valves are arranged on the outlet pipes and connected with cyclone, the operation number of the cyclone is controlled through the valves, the outlet of the cyclone is divided into an overflow pipe and a bottom flow pipe, the overflow pipe is connected to an overflow collecting tank of the gypsum cyclone, the bottom flow pipe is connected with a sand settling nozzle and enters the bottom flow collecting tank of the gypsum cyclone through the sand settling nozzle, wherein the overflow collecting tank of the gypsum cyclone needs to be collected back into a desulfurization system for reuse, and the bottom flow collecting tank of the gypsum cyclone enters a vacuum belt conveyor for dehydration and discharge;

the gypsum rotational flow station changes and designs the sand settling nozzle into a novel sand settling nozzle, the inner diameter of the novel sand settling nozzle is enlarged by 3-5mm compared with that of a common sand settling nozzle, the flow rate of bottom flow is increased, the distribution proportion of cyclone overflow and bottom flow slurry is changed, and the gypsum rotational flow station is formed by the steps of 1: 3 to 1: and 4, gypsum can be discharged outside quickly after the underflow flow is increased, the density of gypsum slurry of the absorption tower system is reduced, the quality adjustment of the gypsum slurry is completed in a short period, and when the gypsum slurry of the absorption tower is recovered to be normal, the gypsum cyclone station is replaced by the original gypsum cyclone station.

Claims

1. A novel gypsum rotational flow system, which comprises: swirler entry header tank, characterized by: the cyclone inlet liquid collecting tank left end install manometer A, pressure sensor respectively, cyclone inlet liquid collecting tank right-hand member install whirl son A, whirl son B, whirl son C respectively through the valve in proper order, whirl son A go up the export and be connected with the overflow collection case through the pipeline, whirl son A under the exit linkage dirt sand nozzle A, dirt sand nozzle A pass through the pipeline and be connected with the underflow collection case, dirt sand nozzle A be the cylinder structure, its internal diameter size is 21-26mm, cyclone inlet liquid collecting tank bottom install the inlet tube, the internal diameter of inlet tube be 100mm, pressure sensor connection control system.

2. The new gypsum cyclone system of claim 1, wherein: the upper outlet of the cyclone B is connected with the overflow header through a pipeline, the lower outlet of the cyclone B is connected with a dust and sand nozzle B, and the dust and sand nozzle B is connected with the underflow header through a pipeline.

3. The new gypsum cyclone system of claim 1, wherein: the upper outlet of the cyclone C is connected with the overflow header through a pipeline, the lower outlet of the cyclone C is connected with a dust and sand nozzle C, and the dust and sand nozzle C is connected with the underflow header through a pipeline.