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Novel lower-pressure-drop distribution plate applicable to multilayered bed

A distribution plate and multi-layer bed technology, applied in separation methods, dispersed particle separation, chemical instruments and methods, etc., can solve problems such as difficult operation, high energy consumption, and high requirements for booster fans, and reduce the pressure drop of multi-layer beds , fully responsive effect

Pending Publication Date: 2016-07-13
BEIJING SPC ENVIRONMENT PROTECTION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The large pressure drop brings operational difficulties, high requirements for the booster fan for flue gas entering the multi-layer bed reaction tower, and high energy consumption

Method used

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  • Novel lower-pressure-drop distribution plate applicable to multilayered bed
  • Novel lower-pressure-drop distribution plate applicable to multilayered bed
  • Novel lower-pressure-drop distribution plate applicable to multilayered bed

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] The distribution plate of the present invention is installed in the flue gas purification reaction tower, and the distribution plate is arranged in multiple layers to form multiple beds, such as Figures 1a-1d As shown, four new types of low-pressure drop distribution plates suitable for multi-layer beds, each type of distribution plate includes screen hole 1, overflow weir 2, material drop port 3, large hole nozzle 4 and its matching air cap 5, flange edge 6 and flange hole 7. The distribution plate is an incomplete circular plate, the gap is the material drop port 3, and the overflow weir 2 perpendicular to the distribution plate is arranged on the edge of the gap, and the large hole nozzles 4 are evenly distributed on the board and are equipped with a wind cap 5, and there are 5 large hole nozzles A sieve hole 1 is set in the gap, and the edge of the distribution plate is a flange edge 6 with a flange hole 7. Multiple distribution plates are installed on the wall of...

Embodiment 2

[0043] Such as figure 2 As shown, the distribution plate of the present invention is applied to a cross-flow multi-layer bed, and the cross-flow multi-layer bed includes: a flue gas inlet pipe 13, a flue gas outlet pipe 14, a spiral feed pipe 15, a feed bin 16, and a discharge pipe 17. The semicircle distribution plate 8, the single circular segment distribution plate 9 and the bottom circular distribution plate 10. The silo 16 is connected to the spiral feed pipe 15, the flue gas outlet pipe 14 and the spiral feed pipe 15 are connected to the highest layer of the tower, and the semicircle distribution plate 8 and multiple single circular segment shapes are installed in the tower from top to bottom through the flange connection. The distribution plate 9 and the circular distribution plate 10, when placing the distribution plates of each layer, make the discharge openings 3 of each distribution plate staggered left and right, and the discharge pipe 17 is connected to the botto...

Embodiment 3

[0046] Such as image 3 As shown, the distribution plate of the present invention is applied to a concentrated-diffusion flow type multilayer bed. Concentrated diffusion flow type multi-layer bed mainly includes: flue gas inlet pipe 13, flue gas outlet pipe 14, spiral feeding pipe 15, silo 16, discharge pipe 17, circular distribution plate 10, symmetrical circular segment distribution plate 11 , The hole-shaped distribution plate 12.

[0047] The silo 16 is connected to the spiral feed pipe 15, the flue gas outlet pipe 14 and the spiral feed pipe 15 are connected to the highest layer of the tower, and the flange is used to connect the top-to-bottom symmetrical circular segmented distribution plate 11 and the notched hole-shaped distribution plate in the tower 12 are installed staggeredly, the last layer is a circular distribution plate 10, and the discharge pipe 17 is connected to the bottom layer of the bed.

[0048] The flue gas enters the reaction tower through the flue g...

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Abstract

The invention discloses a novel lower-pressure-drop distribution plate applicable to a multilayered bed. The novel lower-pressure-drop distribution plate comprises sieve holes (1), an overflowing weir (2), a material dropping hole (3), large-hole nozzles (4) and matched air caps (5) thereof, a flange edge (6) and flange holes (7), wherein the distribution plate is an incomplete round plate and a notch is the material dropping hole (3); the overflowing weir (2) vertical to the distribution plate is arranged at the edge of the notch; the large-hole nozzles (4) are uniformly distributed on the plate and are matched with the air caps (5); air cap small holes (18) are uniformly distributed in the air caps (5); the sieve holes (1) are formed among the large-hole nozzles at intervals; and the edge of the distribution plate is the flange edge (6) and is provided with the flange holes (7). With the adoption of the novel lower-pressure-drop distribution plate, the pressure drop of the multilayered bed can be effectively reduced, and gas-liquid flowing is disordered; the contact area between flue gas and a solid purifying agent is large, and a gas flowing path is long, so that enough gas retention time is guaranteed; and the flue gas is in sufficient reaction with the solid purifying agent, and the novel lower-pressure-drop distribution plate has operational flexibility.

Description

technical field [0001] The invention relates to the field of dry flue gas purification, and is a distribution plate device capable of effectively reducing bed pressure drop inside a multilayer bed reaction tower. Background technique [0002] The traditional plate tower is a kind of graded contact mass transfer equipment used in gas-liquid or liquid-liquid system. It consists of a cylindrical tower body and a number of trays installed horizontally in the tower at a certain distance. Widely used in rectification and absorption, some types are also used for extraction, and can also be used as a reactor for gas-liquid phase reaction process. The tray of the plate tower, also known as the tray, is the part where the gas-liquid two-phase contact is placed in the plate tower, and is mainly composed of a gas channel, an overflow weir, and a downcomer. There are many forms of gas channels, which have a decisive impact on the performance of the tray and are also the main sign to dis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J8/08B01J8/12B01D53/83
CPCB01D53/83B01J8/002B01J8/08B01J8/12B01D2259/128B01D2258/0283B01J2208/00938B01J2208/00884B01J2208/00769B01J2208/00539
Inventor 左嫣然姚常斌高永军张开元
Owner BEIJING SPC ENVIRONMENT PROTECTION TECH
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