Environment-friendly ammonium sulfate fertilizer production system

Abstract

The invention discloses an environment-friendly ammonium sulfate fertilizer production system, and relates to the technical field of tail gas treatment and chemical fertilizer manufacturing, one side of the top end of a whole support limiting frame is clamped with a material receiving concentration box, the top end of the material receiving concentration box is provided with a constant-temperature washing tower, and the inner side of the constant-temperature washing tower is provided with a plurality of repeated reaction cavities at equal intervals; an absorption discharge cavity is formed in the top end of the inner side of the constant-temperature washing tower, a plurality of rows of limiting sleeves are connected to the inner side of the repeated reaction cavity in a clamped mode, and dispersion spraying heads are connected to the top of the side end of the acid liquid injection pipe frame at equal intervals through adapters. The stability of ammonium sulfate production by tail gas deamination is improved and the conditions of resource waste and environmental pollution are reduced through multi-section separation, small-amount continuous mixing reaction and control of full reaction treatment of ammonia gas and dilute sulphuric acid in the tail gas.

Description

Technical Field

[0001] The invention relates to the technical field of tail gas treatment and fertilizer manufacturing, and in particular to an environmentally friendly ammonium sulfate fertilizer production system. Background Art

[0002] Ammonium sulfate is an inorganic substance, colorless crystals or white granules, odorless, decomposes above 280°C, soluble in water, insoluble in ethanol and acetone. Ammonium sulfate is mainly used as a fertilizer and is suitable for general soil and crops. The main production methods of ammonium sulfate fertilizer include coking plant by-product method, synthetic ammonia plant by-product method, direct neutralization method, gypsum method, etc. In the production of chemical fertilizers, ammonium sulfate is mainly used to produce quick-acting nitrogen fertilizers, physiological acid fertilizers, sulfur fertilizers, etc.

[0003] The patent with application number CN202220464410.1 mentions "an ammonia absorption tower for ammonium sulfate production". The patent uses a liquid collector set on one side of the liquid level tube to place the liquid collection bottle used to collect samples inside the positioning groove and push it with force to separate the sealing ring and the positioning rod. Under the action of the internal pressure of the absorption tower, the ammonia-containing solution flows out through the through hole opened in the limit plate. After the collection is completed, the positioning rod and the sealing ring are re-engaged and sealed under the dual action of the spring and the internal liquid pressure, thereby preventing the leakage of the ammonia-containing liquid.

[0004] However, when the existing technology is used to wash ammonia in tail gas, it is impossible to effectively control the reaction between ammonia and dilute sulfuric acid, which can easily lead to excessive ammonia, low deamination efficiency, or excessive dilute sulfuric acid causing the product to become ammonium bisulfate, which greatly affects the stability of tail gas deamination and the stability of the product, resulting in waste of resources and environmental pollution. Summary of the Invention

[0005] The present invention provides an environmentally friendly ammonium sulfate fertilizer production system, which can effectively solve the problem proposed in the above background technology that when the existing technology is used to wash ammonia in tail gas, the reaction between ammonia and dilute sulfuric acid cannot be effectively controlled, and excessive ammonia and low deamination efficiency or excessive dilute sulfuric acid cause the product to become ammonium bisulfate, which greatly affects the stability of tail gas deamination and the stability of the product, resulting in resource waste and environmental pollution.

[0006] To achieve the above object, the present invention provides the following technical solutions: an environmentally friendly ammonium sulfate fertilizer production system, comprising a whole support and limit frame, wherein a plurality of cleaning components are provided on the top of the whole support and limit frame;

[0007] The multiple washing and consolidation components include a material collecting and concentrating tank;

[0008] A material collecting and concentrating box is clamped on one side of the top of the whole support and limiting frame, and a constant temperature washing tower is installed on the top of the material collecting and concentrating box;

[0009] A number of repeated reaction chambers are equidistantly arranged inside the constant temperature washing tower, and an absorption and exhaust chamber is arranged at the top end inside the constant temperature washing tower;

[0010] A number of rows of limiting sleeves are clamped inside the repeated reaction chamber, and a dispersed porous rack is installed inside the number of rows of limiting sleeves;

[0011] A number of concentrated upper row pipe racks penetrate through the bottom ends of two of the repeated reaction chambers at equal intervals, and an injection operation pipe penetrates through the side end of one of the repeated reaction chambers;

[0012] An acid liquid injection pipe rack is penetrated and connected to the side end of the constant temperature washing tower corresponding to the position of the repeated reaction chamber, and a number of dispersed spray heads are connected to the top of the side end of the acid liquid injection pipe rack through adapters at equal intervals.

[0013] According to the above technical solution, one end of the concentrated upper row pipe rack and one end of the injection operation pipe are both penetrated and sleeved in the middle of the bottom end of the dispersed porous rack. The longitudinal section of the concentrated upper row pipe rack is Y-shaped, and the dispersed spray head is placed inside the repeated reaction chamber.

[0014] According to the above technical solution, a gas detector is installed at the top end inside the repeated reaction chamber, an intercepting net plate is installed near the gas detector inside the repeated reaction chamber, and a return treatment pipe is penetrated and connected to the side end of the constant temperature washing tower corresponding to the position of the repeated reaction chamber; <000​​​​​​​​​​​​​​​​A swing motor is installed on the top inner side of the material receiving and concentrating box through a motor seat, and a swing processing frame is clamped on the output shaft of the swing motor;

[0021] A pressure-controlled treatment pipe is passed through one side of the top of the material receiving and concentrating box, and a pressure-controlled pump is installed at the position of the pressure-controlled treatment pipe on the top of the material receiving and concentrating box through a motor base;

[0022] An air pressure detector is embedded in one side of the top of the material receiving and concentrating box, and an exhaust treatment pipe is passed through the other side of the top of the material receiving and concentrating box;

[0023] The other side of the top of the whole support limit frame is symmetrically clamped with a lifting hydraulic cylinder, and the tops of the two lifting hydraulic cylinders are installed with lifting load-bearing blocks;

[0024] A switching motor is installed on the top of the lifting load-bearing block through a motor seat, and a switching operating frame is installed on the output shaft of the switching motor;

[0025] Positioning electromagnets are symmetrically embedded in the inner side of the switching operation frame, a load-bearing crystallization plate is symmetrically clamped in the inner side of the switching operation frame, and a plurality of crystallization processing ropes are equidistantly installed on the bottom end of the load-bearing crystallization plate.

[0026] According to the above technical solution, the centralized upper pipe rack, injection operation pipe, acid injection pipe rack, U-shaped injection pipe, liquid separation external discharge pipe, inlet and outlet matching pipe, reciprocating temperature control pipe and exhaust treatment pipe are all installed with a linkage control valve at one end, and the centralized upper pipe rack, injection operation pipe, return treatment pipe, U-shaped injection pipe and exhaust treatment pipe are all installed inside with an injection fan;

[0027] One end of the reciprocating temperature control tube is installed through one end of the temperature control circulation box, one end of the reciprocating temperature control tube is connected to one end of the booster pump through an adapter, and the swing processing frame is rotatably installed on the inner side of the material receiving and concentrating box.

[0028] According to the above technical solution, one end of the exhaust treatment pipe is installed through one end of the temperature-controlled circulation box, and the positioning electromagnet is magnetically connected to the load-bearing crystallization plate;

[0029] The input ends of the gas detector, booster pump, hot and cold temperature controller, swing motor, pressure control pump, air pressure detector, lifting hydraulic cylinder, switching motor, positioning electromagnet, linkage control valve and injection blower are all electrically connected to the output end of the external controller;

[0030] The input end of the external controller is electrically connected to the output end of the external power supply.

[0031] According to the above technical solution, a material removal and filtering component is provided at the top of the whole support limit frame;

[0032] The stripping and filtering assembly includes an inlet and outlet electric slide rail;

[0033] An in-and-out electric slide rail is symmetrically installed on one side of the top of the whole support limit frame, and an in-and-out positioning plate is installed on the top of the in-and-out electric slide rail through a slide rail seat;

[0034] A fixed electromagnet is embedded in the top of the in-and-out positioning plate, and a collection and processing box is magnetically mounted on the top of the fixed electromagnet;

[0035] One end of the collection and processing box is clamped with an isolation electric slide rail, and the top of the isolation electric slide rail is installed with an isolation blocking plate through a slide rail seat;

[0036] A press-off electric slide rail is symmetrically mounted on the inner side of the collection and processing box, and a press-off processing plate is mounted on one end of the press-off electric slide rail through a slide rail seat;

[0037] A discharge electric slide rail is embedded at one end of the inner side of the collecting and processing box, and a discharge scraper is installed at one end of the discharge electric slide rail through a slide rail seat;

[0038] A dissolution treatment box is installed at one end of the whole support limit frame, and the collection and treatment box and one end of the dissolution treatment box are connected to a press-fit sealing cover through a spring hinge. A sealing electromagnet is clamped at the position of the press-fit sealing cover corresponding to the collection and treatment box and one end of the dissolution treatment box.

[0039] According to the above technical solution, a hot liquid input pipe is passed through one side of the top of the dissolution treatment box, a dissolution motor is installed in the middle of the top of the dissolution treatment box through a motor seat, and a mixing and stirring frame is clamped on the output shaft of the dissolution motor;

[0040] The top of the dissolution treatment box is connected with an external discharge operation pipe, and the top of the dissolution treatment box corresponds to the top of the external discharge operation pipe and is equipped with an external discharge pump through a motor base;

[0041] One end of the dissolution treatment box is clamped with a double-cavity filtrate box, and one end of the double-cavity filtrate box is installed with a vacuum filter;

[0042] A limiting mesh plate is installed in the middle of the inner side of the double-cavity filtrate box, an adsorption mesh cage is installed on the top of the limiting mesh plate, and a cooling condenser is clamped at a position away from the adsorption mesh cage on the inner side of the double-cavity filtrate box;

[0043] The top of the in-and-out positioning plate fits with the bottom of the collection and processing box, the isolation blocking plate is slidably sleeved on one end of the collection and processing box, and the pressing and stripping processing plate and the discharge scraper are both placed inside the collection and processing box.

[0044] According to the above technical solution, one end of the external discharge operation tube is inserted and installed in one end of the double-chamber filtrate box, and the press-fit sealing cover is magnetically combined with the sealing electromagnet;

[0045] The input ends of the in-and-out electric slide rail, fixed electromagnet, isolation electric slide rail, pressing and removing electric slide rail, discharge electric slide rail, sealing electromagnet, dissolution motor, external discharge pump, vacuum filter and cooling condenser are all electrically connected to the output end of the external controller.

[0046] Compared with the prior art, the present invention has the following beneficial effects:

[0047] 1. There are multiple washing components. The intake speed of the tail gas is controlled by the injection operation pipe, dispersed porous rack, linkage control valve and injection fan. The tail gas is dispersed and processed by coordinating small hole intake, large hole diversion and small hole hedging. At this time, the amount and speed of the injected dilute sulfuric acid are controlled by the acid injection pipe rack, dispersed spray head, acid storage tank, booster pump and linkage control valve. The sprayed dilute sulfuric acid is used to form a rain curtain. The rain curtain contacts the tail gas and slows down the rising speed of ammonia in the tail gas by increasing the contact area, increasing the contact effect, and using a small amount of dilute sulfuric acid to continuously flush the reaction. The concentration of ammonia flowing to the top is detected by the gas detector, and the return treatment is used. The pipe and injection fan drive the high-concentration ammonia at the top to flow back to the bottom to achieve cyclic reaction treatment, and use multi-chamber segmented treatment to increase the reaction time and control the reaction amount. The repeated reaction chamber at the top uses excessive dilute sulfuric acid to treat the small amount of ammonia remaining in the tail gas to achieve full deamination treatment. The absorption and exhaust cavity, U-shaped injection pipe, inlet and outlet matching pipe, linkage control valve and injection fan are used to extract the tail gas and inject it into the water to achieve water-soluble deamination and improve the deamination effect. Through multi-stage separation of a small amount of continuous mixed reaction, the full reaction treatment of ammonia and dilute sulfuric acid in the tail gas is controlled, the stability of the tail gas deamination to produce ammonium sulfate is improved, and the waste of resources and environmental pollution are reduced.

[0048] 2. The ammonium sulfate solution and ammonium bisulfate solution are separated by the liquid separation external discharge pipe, and separated and collected in conjunction with the material receiving and concentrating box and the separation and collection box. The material receiving and concentrating box is heated and cooled by the hot and cold temperature controllers. The internal pressure of the material receiving and concentrating box is controlled by the pressure control treatment pipe and the pressure control pump to achieve temperature control and concentration treatment, and the unsaturated ammonium sulfate solution is concentrated into a supersaturated solution. The switching operation frame, the load-bearing crystallization plate and the crystallization treatment rope are driven by the lifting hydraulic cylinder and the switching motor to insert them into the inner side of the material receiving and concentrating box. At this time, the cooling and crystallization guiding treatment are used to achieve rapid crystallization of the ammonium sulfate solution, ensuring the stability of continuous production and continuous treatment.

[0049] 3. Through the control of air intake speed, exhaust speed and exhaust hedging, the process includes circulating linked air intake and exhaust, repeated washing reaction with a small amount of dilute sulfuric acid, sufficient deammoniation treatment of excess dilute sulfuric acid, water-soluble ammonia absorption treatment, segmented separation and discharge treatment, low-pressure medium-temperature thermal evaporation concentration and normal-pressure low-temperature guided crystallization, which effectively solves the problem in the prior art that the reaction between ammonia and dilute sulfuric acid cannot be controlled during washing of ammonia in tail gas, resulting in unstable products and incomplete ammonia reaction. The process reduces the amount of dilute sulfuric acid used while avoiding excessive discharge of ammonia, thereby avoiding environmental pollution caused by direct discharge of ammonia, while ensuring product stability, reducing resource waste and improving the speed and stability of ammonium sulfate production.

[0050] 4. A stripping and filtering assembly is provided. The in-and-out positioning plate and the collection and processing box are moved by the in-and-out electric slide rail, and the pressing and stripping processing plate is moved and inserted into the top of the side end of the crystallization processing rope. The pressing and stripping electric slide rail drives the pressing and stripping processing plate to press and separate the ammonium sulfate crystals bonded to the side end of the crystallization processing rope. The discharge electric slide rail drives the discharge scraper to push the ammonium sulfate crystals into the inside of the dissolution processing box. Finally, after the ammonium sulfate crystals are pushed into the dissolution processing box, the crystallized ammonium sulfate crystals are pressed, stripped and crushed by inserting the downward pressing stripping treatment and moving the discharge treatment, which is convenient for subsequent crystal dissolution and purification treatment, and improves the convenience of subsequent treatment;

[0051] Hot water is injected into the dissolution treatment box through the hot liquid input pipe, and the dissolution motor and the mixing stirring frame are used to promote the mixing and dissolution of ammonium sulfate crystals and hot water. The ammonium sulfate solution is then extracted by the external discharge pump and the external discharge operation pipe and injected into the inner side of the double-cavity filtrate box. The activated carbon adsorbent and the limiting mesh plate in the adsorption cage are used to remove the slag from the solution. The vacuum filter is used for vacuum filtration, and the cooling condenser is used for cooling crystallization to improve the purity of ammonium sulfate and ensure the speed and stability of subsequent granulation.

[0052] In summary, through the cooperation of multiple washing components and stripping and filtration components, and the use of multi-stage reaction treatment, multi-stage discharge treatment, concentrated crystallization production, hot melt stirring treatment, interception adsorption slag removal and vacuum filtration treatment, the full reaction generation and purification treatment of ammonium sulfate is achieved, the purity of ammonium sulfate is improved, the stability of product production and the stability of subsequent granulation are guaranteed, and the ammonia in the tail gas is removed through full absorption reaction, avoiding the occurrence of environmental pollution caused by direct discharge of ammonia-containing tail gas, thereby improving the steady protection of the environment during tail gas treatment and fertilizer production. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0054] In the attached figure:

[0055] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0056] Figure 2 It is a schematic structural diagram of the multi-point washing and knotting assembly of the present invention;

[0057] Figure 3 Schematic diagram of the installation structure of the injection operation pipe of the present invention;

[0058] Figure 4 This is a schematic diagram of the installation structure of the centralized upper pipe rack of the present invention;

[0059] Figure 5 It is a schematic diagram of the installation structure of the acid storage box of the present invention;

[0060] Figure 6 Schematic diagram of the installation structure of the load-bearing crystallization plate of the present invention;

[0061] Figure 7 It is a structural schematic diagram of the material removal, filtration and washing assembly of the present invention;

[0062] Figure 8 It is a schematic diagram of the installation structure of the entry and exit positioning plate of the present invention;

[0063] Figure 9 It is a schematic diagram of the installation structure of the fixed electromagnet of the present invention;

[0064] Figure 10 It is a schematic diagram of the installation structure of the efflux pump of the present invention;

[0065] Numbers in the figure: 1, whole support limit frame;

[0066] 2. Multiple washing and consolidation components; 201. Material collecting and concentrating box; 202. Constant temperature washing tower; 203. Repeated reaction chamber; 204. Absorption and effluent chamber; 205. Multi-row limit sleeves; 206. Dispersed porous rack; 207. Centralized upper pipe rack; 208. Injection operation pipe; 209. Acid injection pipe rack; 210. Dispersed spray head; 211. Gas detector; 212. Intercepting mesh plate; 213. Return processing pipe; 214. U-shaped injection pipe; 215. Liquid separation and effluent pipe; 216. Inlet and outlet matching pipe; 217. Temperature control circulation chamber; 218. Reciprocating temperature control pipe; 2 19. Acid storage tank; 220. Temperature-controlled circulation tank; 221. Booster pump; 222. Separation and collection tank; 223. Hot and cold temperature controller; 224. Swing motor; 225. Swing processing rack; 226. Pressure-controlled processing pipe; 227. Pressure-controlled pump; 228. Air pressure detector; 229. Exhaust processing pipe; 230. Lifting hydraulic cylinder; 231. Lifting load-bearing block; 232. Switching motor; 233. Switching operation rack; 234. Positioning electromagnet; 235. Load-bearing crystallization plate; 236. Crystallization processing rope; 237. Linkage control valve; 238. Injection fan;

[0067] 3. Dematerialization and filtration components; 301. Inlet and outlet electric slide rails; 302. Inlet and outlet positioning plates; 303. Fixed electromagnets; 304. Collection and processing box; 305. Isolation electric slide rails; 306. Isolation blocking plates; 307. Pressing and stripping electric slide rails; 308. Pressing and stripping processing plates; 309. Discharge electric slide rails; 310. Discharge scrapers; 311. Dissolution processing box; 312. Pressing and sealing cover; 313. Sealing electromagnets; 314. Hot liquid input pipes; 315. Dissolution motors; 316. Mixing and stirring racks; 317. External discharge operation pipes; 318. External discharge pumps; 319. Double-chamber filtrate box; 320. Vacuum filter; 321. Limiting mesh plates; 322. Adsorption mesh cages; 323. Cooling condensers. DETAILED DESCRIPTION

[0068] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0069] Example: Figure 1-10 As shown, the present invention provides a technical solution, an environmentally friendly ammonium sulfate fertilizer production system, comprising a whole support and limit frame 1, a top of which is provided with multiple washing components 2;

[0070] The multi-point washing assembly 2 includes a material collecting and concentrating box 201, a constant temperature washing tower 202, a repeated reaction chamber 203, an absorption and discharge chamber 204, a multi-row limit sleeve 205, a dispersed porous rack 206, a centralized upper pipe rack 207, an injection operation pipe 208, an acid injection pipe rack 209, a dispersed spray head 210, a gas detector 211, an interception mesh plate 212, a return processing pipe 213, a U-shaped injection pipe 214, a liquid separation and discharge pipe 215, an inlet and outlet matching pipe 216, a temperature control circulation chamber 217, a reciprocating temperature control pipe 218, Acid storage tank 219, temperature-controlled circulation tank 220, booster pump 221, separation and collection tank 222, hot and cold temperature controller 223, swing motor 224, swing processing frame 225, pressure-controlled processing pipe 226, pressure-controlled pump 227, air pressure detector 228, exhaust processing pipe 229, lifting hydraulic cylinder 230, lifting load-bearing block 231, switching motor 232, switching operation frame 233, positioning electromagnet 234, load-bearing crystallization plate 235, crystallization processing rope 236, linkage control valve 237 and injection blower 238;

[0071] A material collecting and concentrating box 201 is clamped on one side of the top of the whole support and limiting frame 1, and a constant temperature washing tower 202 is installed on the top of the material collecting and concentrating box 201;

[0072] A plurality of repeated reaction chambers 203 are equidistantly provided inside the constant temperature washing tower 202, and an absorption and discharge chamber 204 is provided at the top of the constant temperature washing tower 202;

[0073] Multiple rows of limiting sleeves 205 are clamped on the inner side of the repeated reaction chamber 203, and a dispersed porous frame 206 is installed inside the multiple rows of limiting sleeves 205;

[0074] Several centralized upper-row pipe racks 207 are equidistantly passed through the inner bottom ends of two repeated reaction chambers 203. The longitudinal cross-section of the centralized upper-row pipe rack 207 is Y-shaped, which realizes a steady linkage between accelerated intake and decelerated exhaust, thereby improving the stability of internal air pressure control. An injection operation pipe 208 is passed through the side end of one repeated reaction chamber 203. One end of the centralized upper-row pipe rack 207 and one end of the injection operation pipe 208 are both inserted and sleeved into the middle of the bottom end of the dispersed porous rack 206 to realize intake connection, perform segmented treatment on the injected exhaust gas and ammonia, and realize gas deceleration and dispersed contact treatment.

[0075] An acid injection pipe rack 209 is connected to the side of the constant temperature scrubber 202 at the position corresponding to the repeated reaction chamber 203. A dispersed spray head 210 is connected to the top of the side of the acid injection pipe rack 209 at equal distances through an adapter. The dispersed spray head 210 is placed inside the repeated reaction chamber 203 to achieve steady spray mixing and ensure stable treatment of tail gas scrubbing and deammonification.

[0076] A gas detector 211 is installed at the top of the inner side of the repeated reaction chamber 203. An interception screen 212 is installed at the inner side of the repeated reaction chamber 203 near the gas detector 211. A return processing pipe 213 is connected to the side end of the constant temperature washing tower 202 corresponding to the position of the repeated reaction chamber 203. The longitudinal cross-section of the return processing pipe 213 is U-shaped to ensure the stability of the circulation linkage.

[0077] A U-shaped injection pipe 214 is connected to the bottom of the inner side of the absorption and discharge chamber 204. Several liquid separation and discharge pipes 215 are connected to the side of the constant temperature washing tower 202 at equal intervals. The bottom end of one of the liquid separation and discharge pipes 215 passes through the top of the material receiving and concentrating tank 201 to achieve steady liquid separation and discharge processing and ensure steady recovery of the ammonium sulfate solution. Inlet and outlet matching pipes 216 are connected to the top and side of the constant temperature washing tower 202.

[0078] A temperature control circulation chamber 217 is provided at the side of the constant temperature washing tower 202 near the repeated reaction chamber 203, and a reciprocating temperature control pipe 218 is symmetrically connected through the side of the temperature control circulation chamber 217;

[0079] One end of the whole support limit frame 1 is sleeved with an acid storage box 219, and a temperature control circulation box 220 is installed on the top of the acid storage box 219. One end of the reciprocating temperature control tube 218 is installed through one end of the temperature control circulation box 220 to achieve steady temperature control circulation processing and improve the stability of temperature control. One end of the acid storage box 219 and the temperature control circulation box 220 are both installed with a booster pump 221 through a motor base. One end of the acid injection pipe rack 209 is connected to one end of the booster pump 221 through an adapter. One end of one of the reciprocating temperature control tubes 218 is connected to one end of the booster pump 221 through an adapter to achieve steady liquid injection processing;

[0080] Several separation and collection boxes 222 are installed at equal distances at the top of the whole support and limiting frame 1 near the material collecting and concentrating box 201. Hot and cold temperature controllers 223 are installed inside the material collecting and concentrating box 201 and the temperature control circulation box 220.

[0081] A swing motor 224 is installed on the top of the inner side of the material collecting and concentrating box 201 through a motor base. The output shaft of the swing motor 224 is clamped with a swing processing frame 225. The swing processing frame 225 is rotatably installed on the inner side of the material collecting and concentrating box 201 to achieve stirring and thermal evaporation treatment to ensure the concentration speed of ammonium sulfate.

[0082] A pressure control pipe 226 is passed through one side of the top of the collecting and concentrating box 201. A pressure control pump 227 is installed at the position of the pressure control pipe 226 on the top of the collecting and concentrating box 201 through a motor base.

[0083] An air pressure detector 228 is embedded in one side of the top of the collecting and concentrating box 201. An exhaust treatment pipe 229 is passed through the other side of the top of the collecting and concentrating box 201. One end of the exhaust treatment pipe 229 is installed through one end of the temperature-controlled circulation box 220 to improve the stability of the concentrated exhaust.

[0084] A lifting hydraulic cylinder 230 is symmetrically connected to the other side of the top of the whole support limit frame 1, and a lifting load-bearing block 231 is installed on the top of the two lifting hydraulic cylinders 230;

[0085] A switching motor 232 is installed on the top of the lifting load-bearing block 231 through a motor seat, and a switching operating frame 233 is installed on the output shaft of the switching motor 232;

[0086] A positioning electromagnet 234 is symmetrically embedded in the inner side of the switching operation frame 233, and a load-bearing crystallization plate 235 is symmetrically clamped on the inner side of the switching operation frame 233. The positioning electromagnet 234 is magnetically connected to the load-bearing crystallization plate 235 to achieve a stable fixed position for positioning crystallization and improve the crystallization speed. A number of crystallization processing ropes 236 are equidistantly installed at the bottom end of the load-bearing crystallization plate 235.

[0087] The centralized upper pipe rack 207, injection operation pipe 208, acid injection pipe rack 209, U-shaped injection pipe 214, liquid separation and discharge pipe 215, inlet and outlet matching pipe 216, reciprocating temperature control pipe 218 and exhaust treatment pipe 229 are all installed with a linkage control valve 237 at one end. The centralized upper pipe rack 207, injection operation pipe 208, return treatment pipe 213, U-shaped injection pipe 214 and exhaust treatment pipe 229 are all installed inside with an injection fan 238.

[0088] For stable operation of the equipment, the input terminals of the gas detector 211, booster pump 221, hot and cold temperature controller 223, swing motor 224, pressure control pump 227, air pressure detector 228, lifting hydraulic cylinder 230, switching motor 232, positioning electromagnet 234, linkage control valve 237 and injection blower 238 are all electrically connected to the output terminal of the external controller;

[0089] The input end of the external controller is electrically connected to the output end of the external power supply.

[0090] A material removal and filtering component 3 is provided at the top of the whole support and limiting frame 1;

[0091] The stripping and filtering assembly 3 includes an inlet and outlet electric slide 301, an inlet and outlet positioning plate 302, a fixed electromagnet 303, a collection and processing box 304, an isolation electric slide 305, an isolation blocking plate 306, a pressing and stripping electric slide 307, a pressing and stripping processing plate 308, a discharge electric slide 309, a discharge scraper 310, a dissolution processing box 311, a pressing and sealing cover 312, a sealing electromagnet 313, a hot liquid input pipe 314, a dissolution motor 315, a mixing and stirring frame 316, an external discharge operation pipe 317, an external discharge pump 318, a double-chamber filtrate box 319, a vacuum filter 320, a limiting mesh plate 321, an adsorption mesh cage 322 and a cooling condenser 323;

[0092] An in-and-out electric slide rail 301 is symmetrically installed on one side of the top of the whole support limit frame 1, and an in-and-out positioning plate 302 is installed on the top of the in-and-out electric slide rail 301 through the slide rail seat;

[0093] A fixed electromagnet 303 is embedded at the top of the entry and exit positioning plate 302, and a collection and processing box 304 is magnetically mounted on the top of the fixed electromagnet 303;

[0094] An isolation electric slide rail 305 is clamped on one end of the collection and processing box 304, and an isolation blocking plate 306 is installed on the top of the isolation electric slide rail 305 through a slide rail seat;

[0095] A press-off electric slide rail 307 is symmetrically mounted on the inner side of the collection and processing box 304, and a press-off processing plate 308 is mounted on one end of the press-off electric slide rail 307 through a slide rail seat;

[0096] A discharge electric slide 309 is embedded at one end of the inner side of the collection and processing box 304. A discharge scraper 310 is installed at one end of the discharge electric slide 309 through a slide seat. The top of the entry and exit positioning plate 302 is in contact with the bottom of the collection and processing box 304. The isolation blocking plate 306 is slidably sleeved on one end of the collection and processing box 304. The pressure-off processing plate 308 and the discharge scraper 310 are both placed inside the collection and processing box 304, realizing steady discharge and removal processing, and realizing the recovery of the crystallized ammonium sulfate.

[0097] A dissolution treatment box 311 is installed at one end of the whole support limit frame 1. The collection and treatment box 304 and one end of the dissolution treatment box 311 are connected to a press-fit sealing cover 312 through a spring hinge. A sealing electromagnet 313 is clamped at the position of the press-fit sealing cover 312 at one end of the collection and treatment box 304 and the dissolution treatment box 311. The press-fit sealing cover 312 and the sealing electromagnet 313 are magnetically combined to ensure the stability of the magnetic fixation;

[0098] A hot liquid feeding pipe 314 is passed through one side of the top of the dissolution treatment box 311. A dissolution motor 315 is installed in the middle of the top of the dissolution treatment box 311 through a motor seat. The output shaft of the dissolution motor 315 is clamped with a mixing and stirring frame 316.

[0099] The top of the dissolution treatment box 311 is connected to an external operation pipe 317, and the top of the dissolution treatment box 311 corresponds to the top of the external operation pipe 317 and an external pump 318 is installed through a motor base;

[0100] One end of the dissolution treatment box 311 is connected to a double-chamber filtrate box 319, and one end of the external discharge operation pipe 317 is inserted and installed at one end of the double-chamber filtrate box 319 to achieve steady liquid discharge processing. A vacuum filter 320 is installed at one end of the double-chamber filtrate box 319;

[0101] A limiting mesh plate 321 is installed in the middle of the inner side of the double-cavity filtrate box 319, an adsorption mesh cage 322 is installed on the top of the limiting mesh plate 321, and a cooling condenser 323 is clamped at a position away from the adsorption mesh cage 322 on the inner side of the double-cavity filtrate box 319;

[0102] In order to ensure the stable operation of the equipment, the input ends of the in-and-out electric slide 301, the fixed electromagnet 303, the isolation electric slide 305, the pressing and removing electric slide 307, the discharge electric slide 309, the sealing electromagnet 313, the dissolution motor 315, the external discharge pump 318, the vacuum filter 320 and the cooling condenser 323 are all electrically connected to the output end of the external controller.

[0103] The working principle and use process of the present invention are as follows: when the tail gas after washing and desulfurization is subjected to ammonia adsorption treatment, the staff injects dilute sulfuric acid with a concentration of 20% to 30% into the inner side of the acid storage tank 219, and injects the water used for temperature control into the inner side of the temperature control circulation box 220. At this time, the hot and cold temperature controller 223 is used to heat the water to 80°C. The hot water in the temperature control circulation box 220 is extracted by the booster pump 221 and the reciprocating temperature control pipe 218, and the hot water is injected into the inner side of the temperature control circulation chamber 217. The constant temperature washing tower 202 is temperature-controlled by the circulation of hot water to ensure that the internal temperature is always between 70°C and 80°C. At the same time, the temperature of the water in the temperature control circulation box 220 is adjusted to ensure that the internal temperature is constant, to avoid excessively high or low temperature from having a significant impact on the reaction speed and solubility, and to improve the reaction speed and solubility.

[0104] After the temperature adjustment is completed, the exhaust gas is extracted by the injection operation pipe 208 and the injection blower 238, and the exhaust gas is injected into the dispersed porous frame 206 along the injection operation pipe 208. The exhaust gas is diverted by the dispersed porous frame 206. When the exhaust gas is injected into the dispersed porous frame 206, the air flow space increases and the air flow rate decreases. When the exhaust gas is discharged, due to the restriction of the exhaust holes, the air flow is accelerated and collided with each other, forming turbulence, thereby slowing down the air flow rate, thereby reducing the exhaust gas discharge speed and the uniformity of exhaust gas dispersion.

[0105] At this time, the booster pump 221 and the acid injection pipe rack 209 extract the dilute sulfuric acid inside the acid storage tank 219, and the dilute sulfuric acid is injected into the pipe rack 209 and the dispersion spray head 210 along the acid solution, and the dilute sulfuric acid is sprayed upward to form a rain curtain of dilute sulfuric acid. When the ammonia tail gas enters the first repeated reaction chamber 203, the injection amount of dilute sulfuric acid is controlled according to the ammonia content ratio in the tail gas. At this time, the ammonia is excessive and the dilute sulfuric acid is less. The dilute sulfuric acid and the ammonia react fully to produce ammonium sulfate. The tail gas continues to flow upward, passes through the interception mesh plate 212 to slow down and condense, and then flows upward to the position of the gas detector 211. The gas detector 211 is used to detect the ammonia content in the rising tail gas. When the ammonia concentration is high, the tail gas at the top is circulated and discharged to the bottom by the injection fan 238 and the return treatment pipe 213. At this time, the tail gas reacts with the dilute sulfuric acid again to produce ammonium sulfate.

[0106] When the ammonia concentration is low, the linkage control valve 237 closes the injection operation pipe 208, and at the same time, the linkage control valve 237 opens the centralized upper pipe rack 207. At this time, the injection fan 238 and the centralized upper pipe rack 207 extract the ammonia in the first repeated reaction chamber 203 and inject it into the inner side of the dispersed porous rack 206 to realize the discharge of ammonia. At this time, the dispersed spray head 210 in the second repeated reaction chamber 203 sprays the dilute sulfuric acid, and controls the amount of dilute sulfuric acid according to the ammonia content to generate ammonium sulfate again. At the same time, the gas detector 211 in the first repeated reaction chamber 203 continuously detects the ammonia at the top of the interior. When the ammonia concentration is lower than the detection value, the injection operation pipe 208 is opened and the centralized upper pipe rack 207 is closed. During the reaction process, the ammonia flows upward along the bottom of the repeated reaction chamber 203 and eventually flows to the position of the gas detector 211 for re-detection. When the ammonia content is excessive, the top ammonia is driven to circulate back to the bottom through the return processing pipe 213 and the injection blower 238. At this time, the ammonia flows upward again and reacts with the dilute sulfuric acid again to produce ammonium sulfate. Through the internal circulation of ammonia and the internal control of the spraying amount of dilute sulfuric acid, the steady production of ammonium sulfate is achieved, while avoiding the occurrence of ammonium bisulfate due to excessive dilute sulfuric acid.

[0107] When the ammonia content in the second repeated reaction chamber 203 is low, the centralized upper pipe rack 207 in the third repeated reaction chamber 203 is opened, and the injection fan 238 is used to discharge the tail gas into the third repeated reaction chamber 203. At this time, the ammonia still flows upward from the bottom. At this time, an excess of dilute sulfuric acid is injected into the third repeated reaction chamber 203 through the dispersed spray head 210 box, so that the ammonia contained in the interior is fully reacted to generate ammonium bisulfate, and the gas detector 211 is used to detect ammonia. The return processing pipe 213 and the injection fan 238 drive the internal ammonia to circulate, thereby repeatedly reacting the ammonia and removing it. When the ammonia content in the third repeated reaction chamber 203 is lower than the detection value, water is injected into the absorption and discharge chamber 204 through the inlet and outlet matching pipe 216, and the U-shaped injection pipe 214 is opened through the linkage control valve 237 to inject the tail gas into the water. By utilizing the property that ammonia is easily soluble in water, the very small amount of ammonia remaining in the tail gas is fully absorbed, thereby achieving full purification of the tail gas and producing ammonium sulfate and ammonium bisulfate. Finally, the tail gas is discharged through the inlet and outlet matching pipe 216. The multi-stage reaction is used to fully deammonify and absorb the ammonia to remove the ammonia in the tail gas, avoiding environmental pollution caused by direct discharge of ammonia, and converting the polluted gas into nitrogen fertilizer to achieve resource recovery.

[0108] The liquid separation and external discharge pipe 215 at the position of the repeated reaction chamber 203 is opened by the linkage control valve 237, and the ammonium sulfate solution is discharged into the material collection and concentration box 201, and the ammonium bisulfate solution is discharged into the inner side of the separation and collection box 222 to realize the solution external discharge treatment. The ammonium sulfate solution is heated by the hot and cold temperature controller 223. At this time, the pressure in the material collection and concentration box 201 is reduced by cooperating with the pressure control treatment pipe 226 and the pressure control pump 227. The pressure is reduced and the temperature is increased by evaporation treatment. By controlling the internal pressure, the solution is continuously evaporated at 70°C to avoid the situation where the temperature is too high and ammonium sulfate is separated. 2 drives the switching operation frame 233 to rotate along the lifting load-bearing block 231, and the load-bearing crystallization plate 235 is magnetically fixed by the positioning electromagnet 234. The lifting hydraulic cylinder 230 drives the lifting load-bearing block 231 and the switching operation frame 233 to move downward, and the crystallization processing rope 236 is placed inside the material receiving and concentrating box 201. The switching operation frame 233 and the load-bearing crystallization plate 235 are used to seal the material receiving and concentrating box 201 to ensure the stability of the pressure control process. During the thermal evaporation process, the exhaust treatment pipe 229 and the injection fan 238 extract the evaporated water vapor inside and inject it into the temperature-controlled circulation box 220;

[0109] The swing motor 224 drives the swing processing frame 225 to rotate and promote the solution stirring treatment, so as to achieve sufficient thermal evaporation of the solution and convert the unsaturated ammonium sulfate solution into a supersaturated ammonium sulfate solution. When the solution is supersaturated, the solution begins to crystallize under the guidance of the crystallization treatment rope 236. At this time, the temperature in the material collection and concentration box 201 is controlled by the hot and cold temperature controller 223 to reduce it to 10°C, thereby improving the efficiency and amount of crystallization. After the crystallization is completed, the lifting hydraulic cylinder 230 and the switching motor 232 drive the load-bearing crystallization plate 235 to rotate and move to the position of the collection and processing box 304, so that the crystallization treatment rope 236 can be replaced, thereby ensuring the stability and efficiency of continuous crystallization and achieving steady production of ammonium sulfate.

[0110] When the crystallization processing rope 236 with ammonium sulfate piled thereon rotates and moves to the position of the collection processing box 304, the collection processing box 304 is placed on the top of the in-and-out positioning plate 302, and the collection processing box 304 and the in-and-out positioning plate 302 are magnetically fixed by the fixed electromagnet 303. The in-and-out electric slide 301 drives the in-and-out positioning plate 302 and the collection processing box 304 to move, and the pressing and removing processing plate 308 is moved and inserted into the top of the side end of the crystallization processing rope 236. The isolation electric slide 305 drives the isolation blocking plate 306 to move to seal the collection processing box 304, and the pressing and removing electric slide 307 drives the pressing and removing processing plate 308 to move up and down along the collection processing box 304 to press the sulfur bonded to the side end of the crystallization processing rope 236. The ammonium sulfate crystals are pressed and separated, and the ammonium sulfate crystals are pressed into the inner side of the collection and processing box 304. After the discharge is completed, the discharge electric slide 309 drives the discharge scraper 310 to move along the collection and processing box 304, pushing the ammonium sulfate crystals into the inner side of the dissolution processing box 311. During the pushing process, the two pressed sealing covers 312 rotate along the collection and processing box 304 and the dissolution processing box 311 respectively. Finally, after the ammonium sulfate crystals are pushed into the dissolution processing box 311, the pressed sealing cover 312 is reset under the action of the spring hinge. At this time, the pressed sealing cover 312 is magnetically fixed by the sealing electromagnet 313 to achieve steady discharge processing, ensure that the crystallized ammonium sulfate is quickly discharged, and improve the stability of the material cleaning;

[0111] Hot water at a temperature of 70°C is injected into the dissolution treatment box 311 through the hot liquid input pipe 314. The dissolution motor 315 drives the mixing and stirring frame 316 to rotate, promoting the mixing and dissolution of the ammonium sulfate crystals and the hot water, and dissolving the ammonium sulfate crystals containing some impurities into ammonium sulfate solution. At this time, the ammonium sulfate solution in the dissolution treatment box 311 is extracted by the external discharge pump 318 and the external discharge operation pipe 317, and the ammonium sulfate solution is injected into the inner side of the double-chamber filtrate box 319. The activated carbon adsorbent in the adsorption mesh cage 322 removes the phenols, tar and other colored substances contained in the solution. The fine particles contained in the solution are then screened and removed by the limiting mesh plate 321 to achieve steady filtration treatment. At this time, the vacuum filter 320 is used to extract and filter the liquid, and the liquid is discharged to the cooling condenser 323 for cooling and crystallization treatment, thereby improving the purity of the ammonium sulfate and ensuring the speed and stability of subsequent granulation.

[0112] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An environmentally friendly ammonium sulfate fertilizer production system, comprising an integral support and limiting frame (1), characterized in that: At the top of the integral support and limit frame (1), there are multiple washing and cleaning components (2); The multiple washing and cleaning components (2) include a material collection and concentration tank (201); One side of the top of the integral support and limit frame (1) is clamped with a material collection and concentration tank (201), and a constant temperature washing tower (202) is installed on the top of the material collection and concentration tank (201); A number of repeated reaction chambers (203) are equidistantly arranged inside the constant temperature washing tower (202), and an absorption and exhaust chamber (204) is arranged at the top inside the constant temperature washing tower (202); Multiple rows of limit sleeves (205) are clamped inside the repeated reaction chamber (203), and a dispersion porous frame (206) is installed inside the multiple rows of limit sleeves (205); A number of concentrated upper row pipe frames (207) penetrate through the bottom ends of two of the repeated reaction chambers (203) at equal intervals, and an injection operation pipe (208) penetrates through the side end of one of the repeated reaction chambers (203); An acid solution injection pipe frame (209) is connected through the side end of the constant temperature washing tower (202) corresponding to the position of the repeated reaction chamber (203), and a number of dispersion spray heads (210) are connected to the top of the side end of the acid solution injection pipe frame (209) at equal intervals through adapters; 2. The environmentally friendly ammonium sulfate fertilizer production system according to claim 1, characterized in that: One end of the concentrated upper row pipe frame (207) and one end of the injection operation pipe (208) are both sleeved through the middle of the bottom end of the dispersion porous frame (206). The longitudinal section of the concentrated upper row pipe frame (207) is Y-shaped, and the dispersion spray heads (210) are placed inside the repeated reaction chamber (203); 3. The environmentally friendly ammonium sulfate fertilizer production system according to claim 1, characterized in that: A gas detector (211) is installed at the top inside the repeated reaction chamber (203), an intercepting net plate (212) is installed inside the repeated reaction chamber (203) near the gas detector (211), and a return treatment pipe (213) is connected through the side end of the constant temperature washing tower (202) corresponding to the position of the repeated reaction chamber (203); A U-shaped injection pipe (214) penetrates through the bottom end inside the absorption and exhaust chamber (204), a number of liquid separation exhaust pipes (215) penetrate through the side end of the constant temperature washing tower (202) at equal intervals, and inlet and outlet matching pipes (216) penetrate through the top and the top of the side end of the constant temperature washing tower (202); A temperature control circulation chamber (217) is arranged at the side end of the constant temperature washing tower (202) near the repeated reaction chamber (203), and reciprocating temperature control pipes (218) penetrate through the side ends of the temperature control circulation chamber (217) symmetrically; One end of the integral support and limit frame (1) is sleeved with an acid solution storage tank (219), a temperature control circulation tank (220) is installed on the top of the acid solution storage tank (219), and a booster pump (221) is installed at one end of both the acid solution storage tank (219) and the temperature control circulation tank (220) through a motor seat; 4. The environmentally friendly ammonium sulfate fertilizer production system according to claim 3, characterized in that: One end of the acid solution injection pipe frame (209) is connected to one end of the booster pump (221) through an adapter. The longitudinal section of the return treatment pipe (213) is C-shaped, and the bottom end of one of the liquid separation exhaust pipes (215) penetrates through the top of the material collection and concentration tank (201).

5. The environmentally friendly ammonium sulfate fertilizer production system according to claim 3, characterized in that: Several separation and collection boxes (222) are installed at equal intervals at the top of the integral support and limiting frame (1) near the material collecting and concentrating box (201), and hot and cold temperature controllers (223) are installed inside the material collecting and concentrating box (201) and the temperature control circulation box (220); A swing motor (224) is installed on the top inner side of the material collecting and concentrating box (201) via a motor seat, and a swing processing frame (225) is clamped on the output shaft of the swing motor (224); A pressure-controlled treatment pipe (226) is passed through one side of the top of the material collecting and concentrating box (201), and a pressure-controlled pump (227) is installed at a position of the top of the material collecting and concentrating box (201) corresponding to the pressure-controlled treatment pipe (226) via a motor base; An air pressure detector (228) is embedded and installed on one side of the top of the material receiving and concentrating box (201), and an exhaust treatment pipe (229) is passed through the other side of the top of the material receiving and concentrating box (201); A lifting hydraulic cylinder (230) is symmetrically clamped on the other side of the top of the whole support limit frame (1), and a lifting load-bearing block (231) is installed on the top of the two lifting hydraulic cylinders (230); A switching motor (232) is mounted on the top of the lifting load-bearing block (231) via a motor seat, and a switching operating frame (233) is mounted on the output shaft of the switching motor (232); A positioning electromagnet (234) is symmetrically embedded in the inner side of the switching operation frame (233), a load-bearing crystallization plate (235) is symmetrically clamped in the inner side of the switching operation frame (233), and a plurality of crystallization processing ropes (236) are equidistantly installed at the bottom end of the load-bearing crystallization plate (235).

6. The environmentally friendly ammonium sulfate fertilizer production system according to claim 5, characterized in that: One end of the centralized upper pipe rack (207), injection operation pipe (208), acid injection pipe rack (209), U-shaped injection pipe (214), liquid separation external discharge pipe (215), inlet and outlet matching pipe (216), reciprocating temperature control pipe (218) and exhaust treatment pipe (229) is equipped with a linkage control valve (237), and the inner side of the centralized upper pipe rack (207), injection operation pipe (208), return treatment pipe (213), U-shaped injection pipe (214) and exhaust treatment pipe (229) is equipped with an injection fan (238); One end of the reciprocating temperature control tube (218) is installed through one end of the temperature control circulation box (220), one end of the reciprocating temperature control tube (218) is connected to one end of the booster pump (221) through an adapter, and the swing processing frame (225) is rotatably installed on the inner side of the material receiving and concentrating box (201).

7. The environmentally friendly ammonium sulfate fertilizer production system according to claim 6, characterized in that: One end of the exhaust treatment pipe (229) is installed through one end of the temperature-controlled circulation box (220), and the positioning electromagnet (234) is magnetically connected to the load-bearing crystallization plate (235); The input ends of the gas detector (211), the booster pump (221), the hot and cold temperature controller (223), the swing motor (224), the pressure control pump (227), the air pressure detector (228), the lifting hydraulic cylinder (230), the switching motor (232), the positioning electromagnet (234), the linkage control valve (237) and the injection blower (238) are all electrically connected to the output end of the external controller; The input end of the external controller is electrically connected to the output end of the external power supply.

8. The environmentally friendly ammonium sulfate fertilizer production system according to claim 7, characterized in that: A material removal and filtering assembly (3) is provided at the top of the integral support and limiting frame (1); The stripping and filtering assembly (3) includes an inlet and outlet electric slide rail (301); An in-and-out electric slide rail (301) is symmetrically mounted on one side of the top of the whole support limit frame (1), and an in-and-out positioning plate (302) is mounted on the top of the in-and-out electric slide rail (301) via a slide rail seat; A fixed electromagnet (303) is embedded in the top of the entry and exit positioning plate (302), and a collection and processing box (304) is magnetically mounted on the top of the fixed electromagnet (303); One end of the collection and processing box (304) is clamped with an isolation electric slide rail (305), and the top end of the isolation electric slide rail (305) is mounted with an isolation blocking plate (306) via a slide rail seat; A press-off electric slide rail (307) is symmetrically mounted on the inner side of the collection and processing box (304), and a press-off processing plate (308) is mounted on one end of the press-off electric slide rail (307) via a slide rail seat; A discharge electric slide rail (309) is embedded at one end of the inner side of the collection and processing box (304), and a discharge scraper (310) is installed at one end of the discharge electric slide rail (309) via a slide rail seat; A dissolution treatment box (311) is installed at one end of the whole support limit frame (1), and one end of the collection and treatment box (304) and the dissolution treatment box (311) are connected to a press-fit sealing cover (312) through a spring hinge, and a sealing electromagnet (313) is clamped at a position corresponding to the press-fit sealing cover (312) at one end of the collection and treatment box (304) and the dissolution treatment box (311).

9. The environmentally friendly ammonium sulfate fertilizer production system according to claim 8, characterized in that: A hot liquid feeding pipe (314) is passed through one side of the top of the dissolution treatment box (311), a dissolution motor (315) is installed in the middle of the top of the dissolution treatment box (311) through a motor seat, and a mixing and stirring frame (316) is clamped on the output shaft of the dissolution motor (315); The top of the dissolution treatment box (311) is connected to an external discharge operation pipe (317), and the top of the dissolution treatment box (311) corresponds to the top of the external discharge operation pipe (317) and is equipped with an external discharge pump (318) via a motor base. A double-chamber filtrate box (319) is clamped to one end of the dissolution treatment box (311), and a vacuum filter (320) is installed at one end of the double-chamber filtrate box (319); A limiting mesh plate (321) is installed in the middle of the inner side of the double-cavity filtrate box (319), an adsorption mesh cage (322) is installed at the top of the limiting mesh plate (321), and a cooling condenser (323) is clamped at a position away from the adsorption mesh cage (322) on the inner side of the double-cavity filtrate box (319); The top end of the entry and exit positioning plate (302) is fitted with the bottom end of the collection and processing box (304), the isolation blocking plate (306) is slidably sleeved on one end of the collection and processing box (304), and the pressing and stripping processing plate (308) and the discharge scraper (310) are both placed on the inner side of the collection and processing box (304).

10. The environmentally friendly ammonium sulfate fertilizer production system according to claim 9, characterized in that: One end of the external discharge operation tube (317) is inserted and installed in one end of the double-cavity filtrate box (319), and the press-fit sealing cover (312) and the sealing electromagnet (313) are magnetically combined; The input ends of the in-and-out electric slide rail (301), the fixed electromagnet (303), the isolation electric slide rail (305), the pressing and releasing electric slide rail (307), the discharge electric slide rail (309), the sealing electromagnet (313), the dissolution motor (315), the external discharge pump (318), the vacuum filter (320) and the cooling condenser (323) are all electrically connected to the output end of the external controller.

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