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CN-224222309-U - Harmless treatment device for acid gangue

CN224222309UCN 224222309 UCN224222309 UCN 224222309UCN-224222309-U

Abstract

The utility model provides an acid gangue harmless treatment device which comprises a crushing box, a dust removing box, an acid removing box, a neutralizing box, a screw device, a control panel, a switch and a bottom column. The device comprises a crushing box, a dust collection pipe, a neutralization box, a control panel, a neutralizing box, a spiral device, a control panel and 4 bottom posts, wherein the crushing box is arranged at the rear upper part of a harmless treatment device and is connected with the dust collection box through the dust collection pipe, the dust collection box is arranged right in front of the crushing box, the acid removal box is arranged below the crushing box and is connected with the neutralization box through a feed pipe, the neutralization box is arranged below the dust collection box and right in front of the acid removal box, the spiral device is arranged at the rear of the crushing box and is used for realizing transfer of coal gangue from the crushing box to the spiral device through the transfer platform, the control panel is arranged at the rear lower part of the crushing box, the switch is arranged at the right side of the control panel, and the whole device is supported by the 4 bottom posts. This device has accelerated acid gangue's deacidification process through setting up into water, aeration equipment and agitating unit in the deacidification case to with the heat energy recycle who produces in this process, still utilize the dust removal case to avoid the loss of dust and gas simultaneously, realize acid gangue innocent treatment.

Inventors

  • CAO SHAN
  • WANG TIANYU
  • XU WANRU
  • MAO HONGLIANG

Assignees

  • 美丽华夏生态环境科技有限公司

Dates

Publication Date
20260512
Application Date
20250507

Claims (8)

  1. 1. The acid gangue harmless treatment device is characterized by comprising a crushing box (1), a dust collection box (2), an acid removal box (3), a neutralization box (4), a screw device (5), a control panel (6), a switch (7) and a bottom column (8), wherein the crushing box (1) is arranged at the rear upper part of the harmless treatment device, the dust collection box (2) is connected with the dust collection box (2) through a dust collection pipe (21), the dust collection box (2) is arranged right in front of the crushing box (1), the acid removal box (3) is arranged below the crushing box (1), the neutralization box (4) is arranged below the dust collection box (2), the screw device (5) is arranged at the rear of the crushing box (1), the control panel (6) is arranged at the rear lower part of the crushing box (1), the switch (7) is arranged at the right side of the control panel (6), and the whole device is supported by the 4 bottom columns (8).
  2. 2. The harmless treatment device for acidic coal gangue, which is described in claim 1, is characterized in that a first filter screen (12), a second filter screen (13), a protective guard (14), a drainage plate (15), a smashing device (16), a connecting plate (17) and an intelligent opening plate (18) are arranged in a box body of the smashing box (1), a feed inlet (11) is formed in the left portion of the top end of the smashing box (1), the first filter screen (12) is located below the feed inlet (11) and is inclined, the left end of the first filter screen (12) is fixed to the box wall of the smashing box (1) and the right end of the first filter screen is connected with the second filter screen (13) through the connecting plate (17), the drainage plate (15) is located below the first filter screen (12), the smashing device (16) comprises smashing teeth (161), a rotating shaft (162) and a gear (163), the smashing device (16) is located on the right side inside the smashing box (1) and is fixed to the box wall of the smashing box (1), the second filter screen (13) is located below the smashing device (16) and is connected with the intelligent opening plate (182) through the second filter screen (18) and the intelligent opening plate (181), the opening and closing plate (181) is positioned at the bottom of the crushing box (1) and isolates the crushing box (1) from the acid removal box (3), and the pressure sensor (182) is arranged in the middle of the opening and closing plate (181) and is connected with the control panel (6).
  3. 3. The harmless treatment device for the acid coal gangue is characterized in that guard rails (14) are arranged on the left and the right of the first filter screen (12) and the second filter screen (13).
  4. 4. The harmless treatment device for the acid gangue is characterized in that a dust collection pipe (21), a dust collection net (22), a dust collection brush (23), dust collection equipment (24), a dust scraping plate (25) and a dust outlet pipe (26) are arranged in a dust collection box (2), the dust collection pipe (21) is arranged at the rear end of the top of the dust collection box (2), the dust collection net (22) is installed in the middle of the dust collection box (2) and is inclined from the top to the bottom, the dust collection brush (23) is arranged at the top end of the dust collection net (22), the dust collection equipment (24) is arranged in front of the dust collection net (22), the dust collection equipment (24) comprises a rotating shaft (241) and blades (242), the dust scraping plate (25) is arranged on the left side of the dust collection box (2), one side of the dust scraping plate (25) is tightly attached to the dust collection net (22) and the other side of the dust collection plate is tightly attached to the inner wall of the dust collection box (2), and the dust outlet pipe (26) is arranged at the rear end of the right side of the dust collection box (2) and is connected with an acid collection box (3).
  5. 5. The harmless treatment device for the acid coal gangue is characterized in that a water inlet (31), a stirring device (32), an aeration device (33), a movable scraper (34), a water outlet (35), a discharge port (36), a storage battery (37), a thermoelectric conversion device (38) and a heat conducting pipe (39) are arranged on the acid removal box (3), the water inlet (31) is arranged above the left side of the acid removal box (3), the stirring device (32) is arranged inside the acid removal box (3), the stirring device (32) comprises stirring blades (321), a stirring shaft (322) and a stirring motor (323), the right end of the stirring shaft (322) is connected with the stirring motor (323), the left end of the stirring shaft is fixed on the acid removal box (3), the aeration device (331) comprises an air pump (331), an air inlet pipe (332) and an air vent (333), the air pump (331) is arranged outside the left side of the acid removal box (3), the stirring device is characterized by comprising an air inlet pipe (332), wherein the air inlet pipe (332) is arranged in the stirring shaft (322) at the left side of the stirring shaft (322), ventilation holes (333) are uniformly distributed on stirring blades (321), the movable scraping plate (34) is arranged at the left side of the acid removal box (3), the storage battery (37) and the thermoelectric conversion device (38) are arranged at the rear side of the outside of the acid removal box (3), the left side of the thermoelectric conversion device (38) is connected with the storage battery (37), the right side of the thermoelectric conversion device is connected with a heat conducting pipe (39), the heat conducting pipe (39) is arranged at the right rear side of the inside of the acid removal box (3), the water outlet (35) is arranged at the rear of the acid removal box (3), and the discharge hole (36) is arranged below the right side of the acid removal box (3).
  6. 6. The harmless treatment device for the acid coal gangue is characterized in that a water inlet pipe (41), a water inlet pipe (42), an inclined plate (43), a filter screen (44), a water outlet pipe (45) and a water outlet pipe (46) are arranged on the neutralization tank (4), the water inlet pipe (41) is arranged at the top end of the right side of the neutralization tank (4), the water inlet pipe (42) is arranged above the right side of the neutralization tank (4), the inclined plate (43) is arranged in the neutralization tank (4), the right end of the inclined plate is arranged below the water inlet pipe (42), the surfaces of the filter screen (44) are uneven, the filter screen (44) is arranged on the front side and the rear side of the inclined plate (43), the water outlet pipe (45) is arranged below the left side of the neutralization tank (4), and the water outlet pipe (46) is arranged below the water outlet pipe (45).
  7. 7. The harmless treatment device for the acid coal gangue is characterized in that the spiral device (5) comprises spiral blades (51), a rotating shaft (52), an upper transfer platform (53) and a lower transfer platform (54), the lower ends of the spiral blades (51) are connected with a second filter screen (13) in the crushing box (1) through the lower transfer platform (54), and the upper ends of the spiral blades (51) are connected with a feed inlet (11) at the top end of the crushing box (1) through the upper transfer platform (53).
  8. 8. The harmless treatment device for the acid gangue is characterized in that the control panel (6) comprises a display screen (61) and control keys (62).

Description

Harmless treatment device for acid gangue Technical Field The utility model relates to a device for treating coal gangue, in particular to a device for innocent treatment of acidic coal gangue. Background Gangue is a byproduct produced in the coal mining and washing processes, and has low carbon content, low heat value and higher hardness than coal. Because the gangue treatment process is complex, and the research on the comprehensive utilization of the gangue in China starts relatively late, more than 35% of the gangue is accumulated and stored around a mining area, and serious harm is caused to the environment, especially acidic gangue. The acid gangue contains a large amount of pyrite (FeS 2), and the pyrite is exposed to air and water environment due to the lattice property of the pyrite, so that surface oxidation reaction is easy to occur to generate acid substances, and meanwhile, under the condition of low pH, heavy metals in the acid gangue particles are dissolved to form wastewater with strong acidity and heavy metal toxicity. In addition, the oxidation reaction of pyrite is an exothermic reaction, heat is accumulated under the condition that acid gangue is greatly accumulated, and spontaneous combustion can be initiated after the heat reaches the ignition point of the acid gangue, so that serious consequences are caused. The treated gangue can be used as building materials, roadbeds, soil amendments and the like, but the acid-producing and heat-releasing characteristics of the acidic gangue limit the scope of resource reuse. The concentrated acid coal gangue acid removal treatment is less studied at the present stage, wherein the device disclosed in the invention patent of a coal gangue recycling device and a using method thereof (patent number CN 118663673A) mixes the coal gangue with sulfuric acid solution before crushing to realize preliminary sulfur removal, then the coal gangue and the sulfuric acid solution are crushed together to reduce dust generation, and the crushed coal gangue and sulfuric acid solution are stirred to continuously remove sulfur, but a large amount of heat generated by mixing the coal gangue and the sulfuric acid solution in the whole process can reduce the service life of the device, and heat energy is not utilized. Disclosure of Invention In order to solve the problems, the invention discloses an innocent treatment device for acid gangue, which aims to reduce the content of pyrite in the acid gangue, reduce the possibility of acid production of the acid gangue and collect and utilize heat energy generated in the reaction process of the pyrite. The utility model provides a device for innocent treatment of acidic gangue, which comprises a crushing box, a dust removing box, an acid removing box, a neutralizing box, a screw device, a control panel, a switch and a bottom column. The device comprises a crushing box, a neutralization box, a screw device, a control panel, a switch, a control panel and 4 bottom posts, wherein the crushing box is arranged at the rear upper part of a harmless treatment device and is connected with a dust removal box through a dust collection pipe, the dust removal box is arranged right in front of the crushing box, the acid removal box is arranged below the crushing box and is connected with the neutralization box through a feed pipe, the neutralization box is arranged below the dust removal box and right in front of the acid removal box, the screw device is arranged behind the crushing box, the control panel is arranged at the rear lower part of the crushing box, the switch is arranged on the right side of the control panel, and the whole device is supported by the 4 bottom posts. Wherein the first filter screen, the second filter screen, the guard rail, the drainage plate, the smashing device, the connecting plate and the intelligent opening plate are arranged in the box body of the smashing box. The feed inlet is positioned at the left part of the top end of the crushing box. The first filter screen is positioned below the feed inlet and is inclined, the left end of the first filter screen is fixed on the wall of the crushing box, the right end of the first filter screen is connected with the second filter screen through a connecting plate, and the drainage plate is positioned below the first filter screen. The crushing device comprises crushing teeth, a rotating shaft and a gear, wherein the crushing device is positioned on the right side inside the crushing box, and the right end of the crushing device is fixed on the wall of the crushing box. The second filter screen is arranged below the crushing device, is inclined and is connected with the spiral device through the lower transfer platform. And guard rails are arranged on the left and the right of the first filter screen and the second filter screen. The intelligent opening and closing plate comprises an opening and closing plate and a pressure sensor, wherein the opening and closing plat