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CN-121972120-A - Front end desulfurization and dearsenification treatment device for phosphorus chemical industry

CN121972120ACN 121972120 ACN121972120 ACN 121972120ACN-121972120-A

Abstract

The invention relates to the technical field of desulfurization and dearsenization, and discloses a desulfurization and dearsenization treatment device at the front end of a phosphorus chemical industry, which comprises a reaction tank provided with a PH regulator and a temperature controller, wherein the top of the reaction tank is provided with a cover plate, and the bottom of the cover plate is provided with a conditioner storage tank. According to the invention, through the structural design that the diameter of the surface layer push plate is smaller than that of the deep layer push plate, the stirring shaft moves up and down when rotating by combining with the guide block, the deep spraying amount of the conditioning agent is higher than that of the surface layer, the requirements of high concentration and more intense reaction of phosphorite particles caused by gravity in the deep layer of the reaction tank are accurately matched, the complexing effect of deep calcium ions and iron ions is enhanced, meanwhile, the spraying amount is automatically increased when the spray head moves from the outer layer to the inner layer by utilizing the sliding fit of the regulating rod and the cam groove, the requirements of a core area with high stirring intensity and more sufficient reaction in the inner layer are adapted, the problems of precipitation and package or low reaction efficiency caused by insufficient local conditioning agent are effectively avoided, and the uniform and efficient desulfurization and dearsenization reaction is ensured.

Inventors

  • WANG XIANQIN
  • LU CHANGYONG
  • CHEN GUOYONG
  • YANG XING
  • WU ZEBO

Assignees

  • 贵州福泉川东化工有限公司

Dates

Publication Date
20260505
Application Date
20251230

Claims (10)

  1. 1. The utility model provides a phosphorus chemical industry front end desulfurization dearsenification processing apparatus, is including installing pH regulator and temperature controller's retort (1), its characterized in that: The top of the reaction tank (1) is provided with a cover plate (12), the bottom of the cover plate (12) is provided with a conditioner storage tank (14), the bottom of the conditioner storage tank (14) is rotated to form a stirring shaft (15), the stirring shaft (15) is vertically provided with two groups of stirring rods (151), the side wall of each stirring rod (151) is inserted with an adjusting rod (152), the adjusting rod (152) is provided with a spray head (153), and the bottom of the reaction tank (1) is provided with a driving motor (16) for driving the stirring shaft (15) to rotate; The side wall of the conditioner storage tank (14) is provided with a wavy guide block (2), the stirring shaft (15) is in sliding connection with the guide block (2), the guide block (2) is used for enabling the stirring shaft (15) to move up and down in the rotating process, the conditioner storage tank (14) is provided with an inserting rod (23), the inserting rod (23) is inserted into a communicating cavity (24) formed in the stirring shaft (15), the inserting rod (23) is provided with a surface push plate (232) and a deep push plate (233) which are arranged in the communicating cavity (24) in a sliding manner, the diameter of the surface push plate (232) is smaller than that of the deep push plate (233), and the stirring shaft (15) extrudes the composite conditioner to be sprayed in the vertical movement, and the surface spraying amount is lower than the deep spraying amount; The adjusting rod (152) is in sliding connection with the cam groove (311) arranged at the bottom of the cover plate (12), the cam groove (311) is used for adjusting the horizontal position of the spray head, and when the spray head moves from the outer layer to the inner layer, the adjusting rod (152) synchronously retracts to squeeze the cavity, so that the spraying amount of the inner layer is increased.
  2. 2. The phosphorous chemical front end desulfurization and dearsenization processing device according to claim 1, characterized in that, four supporting legs (11) are installed to retort (1) bottom, install strengthening rib (111) through the bolt between adjacent supporting legs (11), and strengthening rib (111) are the back font, slipmat is installed to supporting leg (11) bottom, install observation window (112) on retort (1), observation window (112) are convenient for observe inside reaction condition.
  3. 3. The phosphorous chemical front end desulfurization and dearsenization treatment device according to claim 1, characterized in that a pair of hanging rings (121) are installed on the cover plate (12), anti-slip grooves are formed on the surfaces of the pair of hanging rings (121), mounting lugs (122) are installed on the side walls of the cover plate (12), and the mounting lugs (122) are connected with the side walls of the reaction tank (1) through bolt screwing.
  4. 4. The phosphorous chemical front end desulfurization and dearsenization treatment device according to claim 1, characterized in that a desulfurizing agent feeding pipe (13) is installed at one end of the reaction tank (1), a dearsenization agent feeding pipe (131) is installed at the other end of the reaction tank (1), a discharge pipe (132) is installed at the bottom of the reaction tank (1), and valves are installed on the desulfurizing agent feeding pipe (13), the dearsenization agent feeding pipe (131) and the discharge pipe (132).
  5. 5. The phosphorous chemical front end desulfurization and dearsenization processing device according to claim 1, characterized in that, feed gate (141) is installed through bolt screwing at conditioner holding vessel (14) top, install handle (142) on feed gate (141), (15) stirring rod (151) and regulation pole (152) inside be hollow state, install the check valve on regulation pole (152), and the inlet interconnect of check valve export and shower nozzle (153), stirring board (154) are installed to regulation pole (152) lateral wall, install sealed pad (156) between stirring rod (151) and regulation pole (152).
  6. 6. The phosphorous chemical front end desulfurization and dearsenization processing device according to claim 1, characterized in that the output end of the driving motor (16) movably penetrates through the bottom of the reaction tank (1), a supporting plate (161) is installed at the tail end of the output end of the driving motor (16), a cross-shaped inserting shaft (162) is installed at the rotation center of the supporting plate (161), a connecting cover (155) is installed at the bottom of the stirring shaft (15), a groove matched with the cross-shaped inserting shaft (162) is formed in the connecting cover (155), and the cross-shaped inserting shaft (162) is inserted into the groove.
  7. 7. The phosphorous chemical front end desulfurization and dearsenization processing device according to claim 1, characterized in that, install sliding sleeve (21) on (15) stirring shaft, and sliding sleeve (21) set up in conditioner holding vessel (14) export outside, be provided with sealing block (213) between sliding sleeve (21) and conditioner holding vessel (14), and sealing block (213) are rubber material, connecting block (211) is installed at sliding sleeve (21) top, gyro wheel (212) are installed in connecting block (211) lateral wall rotation, and gyro wheel (212) and guide block (2) surface sliding connection.
  8. 8. The phosphorous chemical front end desulfurization and dearsenization processing device according to claim 7, characterized in that, slide (22) is installed to sliding sleeve (21) lateral wall, movable through installs gag lever post (221) on slide (22), slide (224) are installed at gag lever post (221) top, slide rail (225) sliding connection of seting up on slide (224) lateral wall and conditioner holding vessel (14), cup joint and be provided with spacing spring (223) on gag lever post (221), spacing spring (223) one end joint is on slide (224), spacing spring (223) other end joint is on slide (22), limiting plate (222) are installed to gag lever post (221) bottom.
  9. 9. The phosphorous chemical front end desulfurization and dearsenization processing device according to claim 1, characterized in that, link (231) is installed at inserted bar (23) top, link (231) interconnect with conditioner holding vessel (14) inside wall, offered extrusion chamber (242) on intercommunication chamber (24) outside deep push pedal (233), and extrusion chamber (242) diameter is greater than intercommunication chamber (24), be provided with communicating pipe (241) between extrusion chamber (242) lateral wall and the intercommunication chamber (24) of setting outside top layer push pedal (232), communicating pipe (241) are used for guiding the conditioner flow.
  10. 10. The phosphorous chemical front end desulfurization and dearsenization processing device according to claim 1, characterized in that, mounting board (31) is installed through the bolt to apron (12) bottom, mounting board (31) central point puts the welding and is provided with locating plate (3), cam slot (311) are seted up on locating plate (3), install slide bar (32) on adjusting lever (152), and slide bar (32) slip setting is in cam slot (311), movable run-through is provided with locating lever (321) on slide bar (32), and locating lever (321) lateral wall and (15) lateral wall interconnect.

Description

Front end desulfurization and dearsenification treatment device for phosphorus chemical industry Technical Field The invention belongs to the technical field of desulfurization and dearsenization, and particularly relates to a desulfurization and dearsenization treatment device at the front end of a phosphorus chemical industry. Background The phosphorus chemical industry is used as a key basic industry of national economy, phosphorite is used as a core raw material in the production, and harmful impurities such as sulfur, arsenic and the like associated with natural phosphorite can cause the problems of subsequent equipment corrosion, catalyst poisoning, substandard product quality, environmental pollution and the like, so that the front-end desulfurization and dearsenization treatment is an essential link of the phosphorus chemical industry production. The existing phosphorous chemical front-end desulfurization and dearsenization technology is a traditional step-by-step treatment mode or a part of an integrated device, and has the problems that the distribution of a conditioning agent is rough and the demand of regional reaction in a reaction tank cannot be adapted, wherein the conditioning agent is sprayed in a fixed flow manner, the distribution characteristics of high concentration and more severe reaction of deep phosphorite particles formed by the action of gravity in the reaction tank cannot be matched, the ion release amount in the deep region is large but insufficient for complexation of the conditioning agent, compact CaSO 4 is easy to form to deposit and wrap phosphorite particles, the follow-up dearsenization reaction is hindered, the spray head is designed in a uniform flow manner, the demand of a core region with large inner layer stirring intensity and more sufficient reaction is difficult to be adapted, the inner layer is used as a reaction key region, the insufficient supply of the conditioning agent can cause that oxidizing ions such as Fe 3 + are not effectively shielded, S 2 -in the oxidation dearsenization agent is oxidized, the dearsenization efficiency is reduced, and meanwhile, the local reaction is uneven, and the medicament is wasted. The present invention has been made in view of this. Disclosure of Invention In order to solve the technical problems, the invention adopts the basic conception of the technical scheme that: the front end desulfurization and dearsenification treatment device for the phosphorus chemical industry comprises a reaction tank provided with a PH regulator and a temperature controller. The top of the reaction tank is provided with a cover plate, the bottom of the cover plate is provided with a conditioner storage tank, the bottom of the conditioner storage tank is rotated to form a stirring shaft, two groups of stirring rods are vertically arranged on the stirring shaft, the side wall of each stirring rod is inserted with an adjusting rod, a spray head is arranged on the adjusting rod, and the bottom of the reaction tank is provided with a driving motor for driving the stirring shaft to rotate; The side wall of the conditioner storage tank is provided with a wavy guide block, the stirring shaft is in sliding connection with the guide block, the guide block is used for enabling the stirring shaft to move up and down in the rotating process, the conditioner storage tank is provided with an inserting rod, the inserting rod is inserted into a communicating cavity formed in the stirring shaft, the inserting rod is provided with a surface layer push plate and a deep push plate which are arranged in the communicating cavity in a sliding manner, the diameter of the surface layer push plate is smaller than that of the deep push plate, the stirring shaft vertically moves to extrude the composite conditioner to spray out, and the surface layer spraying amount is lower than the deep spraying amount; The adjusting rod is slidably connected with the cam groove arranged at the bottom of the cover plate, the cam groove is used for adjusting the horizontal position of the spray head, and when the spray head moves from the outer layer to the inner layer, the adjusting rod synchronously retracts the extrusion chamber, so that the spraying amount of the inner layer is increased. As a preferred implementation mode of the invention, four supporting legs are arranged at the bottom of the reaction tank, reinforcing ribs are arranged between adjacent supporting legs through bolts and are in a shape like a Chinese character 'hui', anti-slip pads are arranged at the bottoms of the supporting legs, and observation windows are arranged on the reaction tank and are convenient for observing internal reaction conditions. As a preferred implementation mode of the invention, the cover plate is provided with a pair of hanging rings, the surfaces of the pair of hanging rings are provided with anti-skid grooves, the side wall of the cover plate is provided with mounting lugs, and the mounting l