盐酸降膜吸收塔
By designing a hydrochloric acid falling film absorption tower and utilizing liquid and gas distributors to increase the contact area and time, the problem of low efficiency in existing hydrochloric acid absorption towers was solved, and efficient hydrochloric acid recovery was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZIBO TIANDAN CHEM CO LTD
- Filing Date
- 2025-08-20
- Publication Date
- 2026-07-17
AI Technical Summary
In existing hydrochloric acid absorption towers, the contact area and time between hydrogen chloride gas and the absorption liquid are small, resulting in low hydrochloric acid absorption efficiency and requiring multiple cycles of treatment.
A hydrochloric acid falling film absorption tower was designed, comprising a liquid distributor, a gas distributor, and a falling film assembly. The absorbent is dispersed by umbrella-shaped nozzles, the contact time is extended by arc-shaped tubes, and a jacket is installed on the outside of the tower to control the temperature and improve the contact efficiency.
This increases the contact area and time between hydrogen chloride gas and the absorbent, improves the hydrochloric acid absorption efficiency, reduces the waste of hydrogen chloride gas, and lowers production costs.
Smart Images
Figure CN224506682U_ABST
Abstract
Claims
1. A falling film absorption column with hydrochloric acid, comprising a column body (1), characterized in that, The lower part of the tower body (1) is connected to an adsorption tower (3), and the side of the adsorption tower (3) away from the tower body (1) is connected to a fan (2). The lower part of the tower body (1) is provided with a gas distributor (4), which is connected to the adsorption tower (3). The tower body (1) above the gas distributor (4) is provided with a falling film assembly (6), which includes several arc-shaped tubes (601) spaced apart. The upper part of the tower body (1) is provided with a liquid distributor (7), which has several nozzles at the top. The outer side of the tower body (1) is provided with a jacket (101) and a jacket (102).
2. The falling film hydrochloride absorption column according to claim 1, characterized in that The nozzle is arranged in an umbrella shape, with a hollow tube (701) in the middle and an arc-shaped cover plate (702) on the top of the hollow tube (701). The outer wall of the hollow tube (701) is fixedly connected to the arc-shaped cover plate (702).
3. The falling film hydrochloride absorption column according to claim 1, characterized in that An adsorption layer (8) is provided on the inner wall of the tower body (1) above the liquid distributor (7).
4. The falling film hydrochloride absorption column according to claim 1, characterized in that The gas distributor (4) is arranged in a disc shape. A gas chamber (401) is provided at the center of the gas distributor (4). A dispersion plate (402) is provided on the outside of the gas chamber (401). Several grid plates (403) are arranged at intervals inside the dispersion plate (402).
5. The falling film hydrochloride absorption column according to claim 4, characterized in that Several grid plates (403) are arranged vertically around each other, and the pipes on the adsorption tower (3) pass through the dispersion plate (402) and are connected to the gas chamber (401).
6. The falling film hydrochloride absorption column of claim 1, wherein, The falling film assembly (6) is fixedly installed on the inner wall of the tower body (1).
7. The falling film hydrochloride absorption column according to claim 1, characterized in that The arc-shaped tube (601) includes several bent tubes arranged in a blade shape, and the bent tubes are connected end to end. A connecting port (602) is provided at the connection of the bent tubes connected end to end. The several arc-shaped tubes (601) are connected to each other.
8. The falling film hydrochloride absorption column of claim 1, wherein, Jacket 1 (101) is located above Jacket 2 (102), and the top height of Jacket 2 (102) is level with the height of the gas distributor (4).
9. The falling film hydrochloride absorption column according to claim 8, characterized in that A water inlet is provided at the lower part of the first jacket (101), and a water outlet is provided at the upper part of the first jacket (101). A water inlet is provided at the lower part of the second jacket (102), and a water outlet is provided at the upper part of the second jacket (102).
10. The falling film hydrochloride absorption column of claim 1, wherein, A buffer tank (9) is connected to the top of the tower body (1), and an outlet pipe (5) is provided at the bottom of the tower body (1). A concentration monitor (501) is provided on the outlet pipe (5).