CN-120586612-B - Novel dry deacidification reaction device

Abstract

The invention discloses a novel dry deacidification reaction device which comprises a shell and an adsorbent spraying component arranged on the outer side wall of the shell, wherein the shell comprises an outer cylinder and an inner cylinder sleeved in the outer cylinder, the adsorbent spraying component comprises a mounting pipe and a spraying pipe which is arranged on the periphery of the mounting pipe and penetrates through the mounting pipe, the lower end of the mounting pipe is connected with the spraying pipe through a reducing joint, the spraying pipe is obliquely downwards arranged on the outer side wall of an inner cylinder short joint, and the spraying pipes are obliquely arranged on the periphery of the mounting pipe.

Inventors

• DING JIN
• LIU HUAN
• ZHAO BING
• XIE YANMING

Assignees

• 中节能兆盛环保有限公司

Dates

Publication Date

20260508

Application Date

20250711

Claims (2)

1. 1. A dry deacidification reaction device is characterized by comprising a shell (1) and an adsorbent injection assembly (2) arranged on the outer side wall of the shell (1), wherein the shell (1) comprises an outer cylinder (10) and an inner cylinder (11) sleeved in the outer cylinder (10), the top end of the outer cylinder (10) is connected with a top plate (12) through bolts, the bottom end of the outer cylinder (10) is sequentially connected with a connecting elbow (100), an eccentric reducing pipe (101) and an outer cylinder short joint (102), one end, far away from the eccentric reducing pipe (101), of the outer cylinder short joint (102) is connected with a flue gas outlet flange (103), the inner cylinder (11) comprises an inner cylinder upper section (110), a first concentric reducing pipe (111) connected with the bottom end of the inner cylinder upper section (110), an inner cylinder lower section (112) connected with the bottom end of the first concentric reducing pipe (111) and penetrating through the connecting elbow (100), a second concentric reducing pipe (113) connected with the bottom end of the second concentric reducing pipe (112), a short joint (114) connected with the bottom end of the second concentric reducing pipe (113), and an air inlet elbow (114), the gas inlet elbow (115) is connected with a flue gas inlet flange (116), the upper section (110) of the inner cylinder is fixedly connected with the inner wall of the outer cylinder (10) through a bracket (117), a gap is formed between the top end of the upper section (110) of the inner cylinder and the top plate (12), and the diameter of the lower section (112) of the inner cylinder is smaller than that of the upper section (110) of the inner cylinder; the adsorbent spraying assembly (2) comprises a mounting pipe (20) and a plurality of spraying pipes (21) which are equidistantly distributed in the circumferential direction of the mounting pipe (20) and penetrate through the mounting pipe (20), wherein the lower end of the mounting pipe (20) is connected with a spraying pipe (201) through a reducing joint (200), the spraying pipe (201) is obliquely downwards arranged on the outer side wall of an inner cylinder short joint (114), each spraying pipe (21) is obliquely arranged in the circumferential direction of the mounting pipe (20), and one end of the spraying pipe (21) positioned in the mounting pipe (20) is lower than one end positioned outside the mounting pipe (20); The inner bottom of the mounting pipe (20) is provided with a rotational flow impeller (22), the rotational flow impeller (22) comprises an outer sleeve (220) sleeved at the inner bottom of the mounting pipe (20), an inner sleeve (221) sleeved in the outer sleeve (220) and a plurality of curved-surface fan blades (222) distributed between the inner sleeve (221) and the outer sleeve (220) at equal intervals; The adsorbent spraying assembly (2) further comprises a reciprocating swinging member (23) arranged outside the mounting pipe (20), wherein the reciprocating swinging member (23) comprises a first motor (230) arranged at the top end of the mounting pipe (20), a lifting disc (231) arranged at the top end of the mounting pipe (20) and connected with the first motor (230), a plurality of push rods (232) distributed on the lower bottom surface of the lifting disc (231) at equal intervals and respectively connected with the spraying pipes (21) in a one-to-one correspondence manner, the output end of the first motor (230) is connected with a swinging cam (2300), swinging arms (233) movably hinged with the lower bottom surface of the lifting disc (231) are rotatably clamped on the swinging cam (2300), follower sleeves (2320) slidably clamped with the spraying pipes (21) at corresponding positions are movably hinged at the bottom ends of the push rods (232), a righting sleeve (2321) slidably clamped with the push rods (232) is arranged on the upper end surface of the mounting pipe (20), the spraying pipes (21) are respectively rotatably clamped with the spraying pipes (21), and the sealing sleeves (210) are respectively connected with the spraying pipes (20); The novel flue gas guide device is characterized in that a flue gas guide seat (3) is arranged on the lower bottom surface of the top plate (12), a cylindrical structure is arranged on the flue gas guide seat (3), an arc-shaped guide cavity (30) is formed in the lower bottom surface of the flue gas guide seat (3) from inside to outside, a rotary sleeve (4) is rotatably clamped on the upper end surface of the inner wall of the outer cylinder (10), a plurality of follow-up blades (40) are obliquely arranged on the inner wall of the rotary sleeve (4), and a scraping plate (41) which is adaptive to the arc-shaped guide cavity (30) is arranged at the top end of the rotary sleeve (4).
2. 2. The dry deacidification reaction device according to claim 1, wherein the horizontal section of the air inlet elbow (115) is connected with an ash collecting bin (5), and a plurality of inclined plates (50) are equidistantly distributed at the top end of the ash collecting bin (5).

Description

Novel dry deacidification reaction device Technical Field The invention relates to the technical field of flue gas treatment equipment, in particular to a novel dry deacidification reaction device. Background The original environmental protection equipment in the waste incineration power generation industry can not meet the emission standard requirement. Acid gas cleaning processes are classified into dry, semi-dry and wet depending on whether water is added or not and the dry and wet of deacidified products. Obviously, only the semi-dry deacidification system cannot guarantee that the fume emission reaches the environmental protection target, and the dry deacidification system technology can be a good supplement of the semi-dry deacidification system. The technological principle of the dry deacidification system is that harmful substances in the flue gas of the garbage incinerator after incineration mainly exist in the form of gas, a dry treatment process of flue gas purification is carried out by adopting a lime slaking spraying device, lime slaking dry powder is sprayed into an inlet flue of a dust remover, a stable and efficient reaction bed is formed on the surface of a dust remover bag, the removal of the harmful substances is realized, the harmful gases in the flue gas and the slaked lime completely react to form solid calcium chloride, calcium sulfite, calcium sulfate and other attachments, the solid calcium chloride, the calcium sulfite, the calcium sulfate and the attachments are attached to dust or are condensed into fine particles, and the dust is collected by a bag filter. However, when large flue gas flow enters the deacidification reaction tower, the air flow is required to be uniformly distributed, a large amount of circulating ash in the circulating fluidized bed falls from the bottom of the deacidification reaction tower, so that the reaction tower is easily blocked, and meanwhile, the reaction between the flue gas and the adsorption agent is insufficient due to the limitation of the tower height, so that the deacidification effect of the flue gas is influenced. Disclosure of Invention Aiming at the technical problems, the invention provides a novel dry deacidification reaction device. The novel dry deacidification reaction device comprises a shell and an adsorbent injection assembly arranged on the outer side wall of the shell, wherein the shell comprises an outer cylinder and an inner cylinder sleeved in the outer cylinder, the top end of the outer cylinder is connected with a top plate through a bolt, the bottom end of the outer cylinder is sequentially connected with a connecting elbow, an eccentric reducing pipe and an outer cylinder short joint, one end of the outer cylinder short joint, which is far away from the eccentric reducing pipe, is connected with a flue gas outlet flange, the inner cylinder comprises an inner cylinder upper section, a first concentric reducing pipe connected to the bottom end of the inner cylinder upper section, an inner cylinder lower section connected to the bottom end of the first concentric reducing pipe and penetrating through the connecting elbow, a second concentric reducing pipe connected to the bottom end of the inner cylinder lower section and an inner cylinder short joint connected to the bottom end of the second concentric reducing pipe, the bottom end of the inner cylinder short joint is connected with an air inlet elbow, the air inlet flange is connected to the air inlet elbow, the inner cylinder upper section is fixedly connected with the inner wall of the outer cylinder through a bracket, a gap is formed between the top end of the inner cylinder upper section and the top plate, and the diameter of the inner cylinder lower section is smaller than that of the inner cylinder upper section; The adsorbent spraying assembly comprises a mounting tube and a plurality of spraying tubes which are distributed in the circumferential direction of the mounting tube at equal intervals and penetrate through the mounting tube, wherein the lower end of the mounting tube is connected with a spraying tube through a reducing joint, the spraying tube is obliquely downwards arranged on the outer side wall of an inner tube short joint, each spraying tube is obliquely arranged in the circumferential direction of the mounting tube, and one end of each spraying tube positioned in the mounting tube is lower than one end positioned outside the mounting tube. Further, the inner bottom of the mounting pipe is provided with a rotational flow impeller, and the rotational flow impeller comprises an outer sleeve sleeved at the inner bottom of the mounting pipe, an inner sleeve sleeved in the outer sleeve and a plurality of curved-surface fan blades distributed between the inner sleeve and the outer sleeve at equal intervals; The high-pressure adsorbent drives the rotational flow impeller to rotate when passing through the curved fan blades between the inner sleeve and the out