Seawater desalination device using waste heat of cooling tower of power plant

Abstract

The invention discloses a seawater desalination device using waste heat of a cooling tower of a power plant, and relates to the technical field of seawater desalination, a treatment integration frame is clamped to the inner side of an integration desalination box, a plurality of special-shaped liquid inlet barrels are clamped to the top end of the inner side of the treatment integration frame at equal intervals, and feeding conical hoppers are welded to the bottom ends of the special-shaped liquid inlet barrels; according to the seawater desalination and recovery device, seawater is preheated, so that seawater desalination and recovery and seawater preheating preparation treatment are realized, the heating speed of seawater can be increased during subsequent seawater heating and evaporation, and the seawater desalination and recovery device has the advantages that the seawater desalination and recovery efficiency is improved, and the seawater desalination and recovery efficiency is improved. Multiple groups of special-shaped liquid inlet barrels and backflushing special-shaped barrels are matched with one another, so that repeated heat exchange between hot water and seawater is realized, series desalination treatment is realized, an additional heat source does not need to be added in the treatment process, heat in flowing is subjected to continuous and sufficient heat treatment, and the seawater desalination speed and the desalination amount are increased.

Description

Technical Field

[0001] The present invention relates to the technical field of seawater desalination, and specifically to a seawater desalination device using the waste heat of a power plant cooling tower. Background Art

[0002] Seawater desalination is the technology of producing fresh water by desalinating seawater. It is an open-source incremental technology for water resource utilization, which can increase the total amount of fresh water, and is not affected by time, space and climate. It can ensure stable water supply such as drinking water for coastal residents and makeup water for industrial boilers. Seawater desalination methods include seawater freezing method, electrodialysis method, distillation method, reverse osmosis method, and ammonium carbonate ion exchange method. Using the waste heat of a power plant cooling tower for seawater desalination is an efficient and energy-saving solution, which can improve the energy utilization efficiency and alleviate the shortage of fresh water resources at the same time.

[0003] The patent with the application number 201910092350.8 mentions "a heat pump seawater desalination device using the waste heat of a power plant cooling tower". This patent uses heat pump technology to collect the steam evaporated from seawater to produce fresh water, and utilizes marine energy. The heat pump evaporator absorbs heat from the steam condensation, and then heats the heating return water at the condenser end to supply heat to the central heating pipe network, or heats the circulating water of the power plant to increase the water supply temperature, fully recovering and utilizing the waste heat and saving energy.

[0004] However, when using the waste heat of a power plant to desalinate seawater, the existing technology requires a large amount of additional energy during the treatment, reducing the recovery rate of heat resources. And it fails to effectively utilize the heat flowing during the desalination process for continuous heat treatment of seawater. At the same time, due to the low waste heat temperature, it is impossible to generate thermal steam from seawater under normal pressure, resulting in a reduction in the seawater desalination speed, greatly affecting the seawater desalination effect and increasing the desalination cost. Summary of the Invention

[0005] The present invention provides a seawater desalination device using the waste heat of a power plant cooling tower, which can effectively solve the problems mentioned in the above background art that when using the waste heat of a power plant to desalinate seawater, the existing technology requires a large amount of additional energy during the treatment, reducing the recovery rate of heat resources, and it fails to effectively utilize the heat flowing during the desalination process for continuous heat treatment of seawater. At the same time, due to the low waste heat temperature, it is impossible to generate thermal steam from seawater under normal pressure, resulting in a reduction in the seawater desalination speed, greatly affecting the seawater desalination effect and increasing the desalination cost.

[0006] To achieve the above object, the present invention provides the following technical solution: A seawater desalination device using the waste heat of a power plant cooling tower, including an integrated desalination tank, and a series-connected seawater-blocking component is arranged inside the integrated desalination tank; The series-connected seawater-blocking component includes a treatment integration frame; Inside the integrated dilution tank, a processing and integration frame is snap-fitted. At the inner top of the processing and integration frame, several special-shaped liquid inlet barrels are snap-fitted at equal intervals. At the bottom end of the special-shaped liquid inlet barrel, an input conical hopper is welded. Inside the processing and integration frame, several backflush special-shaped barrels are snap-fitted at equal intervals. At the bottom end of the backflush special-shaped barrel, a condensation limiting hopper is welded. Inside the special-shaped liquid inlet barrel, a multi-tube heat exchange frame is snap-fitted. Inside the multi-tube heat exchange frame, several bottom-round flow guide blocks are snap-fitted at equal intervals. In the middle of the top of the multi-tube heat exchange frame, an outer discharge positioning pipe is connected through. Inside the multi-tube heat exchange frame, exhaust gas orientation pipes are connected through at equal intervals. Inside the backflush special-shaped barrel, a multi-tube condensation frame is snap-fitted. Inside the multi-tube condensation frame, several upper limit blocking hoppers are snap-fitted at equal intervals. At the top of both the special-shaped liquid inlet barrel and the backflush special-shaped barrel, a series-connected exhaust pipe is snap-fitted.

[0007] According to the above technical solution, the longitudinal sections of the special-shaped liquid inlet barrel and the backflush special-shaped barrel are both T-shaped. The longitudinal sections of the multi-tube heat exchange frame and the multi-tube condensation frame are I-shaped. The exhaust gas orientation pipe is placed inside the special-shaped liquid inlet barrel.

[0008] According to the above technical solution, several acceleration impact hoppers are snap-fitted at equal intervals inside the series-connected exhaust pipe. At the inner top of the backflush special-shaped barrel, a special-shaped double-pass frame is welded. Inside the special-shaped double-pass frame, a blocking inclined block is welded. At the bottom end of the input conical hopper, a heat injection treatment pipe is installed. At the bottom end of the special-shaped liquid inlet barrel, a bottom inlet input pipe is connected through. One end of the bottom inlet input pipe far from the input conical hopper is connected through to a relay linkage barrel. At the top of the relay linkage barrel, an outer discharge linkage pipe is connected through. At the side end of the series-connected exhaust pipe, a relay heat exchange barrel is snap-fitted. At the top of the side ends of the special-shaped liquid inlet barrel and the backflush special-shaped barrel, a vacuum pump is installed through a motor seat. At the position corresponding to the vacuum pump on the side ends of the special-shaped liquid inlet barrel and the backflush special-shaped barrel, an air inlet and outlet pipe is connected through. One of the special-shaped liquid inlet barrels has a hot water outer discharge pipe connected through at the top. At the position corresponding to the hot water outer discharge pipe on the top of the processing and integration frame, a relay linkage box is snap-fitted.

[0009] According to the above technical solution, one end of the relay linkage box is connected through to a spray pipe rack. At the bottom end of the spray pipe rack, several spray treatment heads are installed at equal intervals through a swivel joint. On one side of the top of the processing and integration frame, a porous collection box is installed. On the side end of the porous collection box, several air blowing treatment holes are opened at equal intervals. The bottom inlet input pipe is embedded and installed inside the special-shaped liquid inlet barrel. One end of the outer discharge linkage pipe is installed through the top of the side end of the backflush special-shaped barrel. One end of the vacuum pump is connected to one end of the air inlet and outlet pipe through a swivel joint.

[0010] According to the above technical solution, a load-bearing fixed block is rotatably connected to the inner bottom end of the porous collection box. One end of the load-bearing fixed block is provided with a lifting electric push rod. One end of the lifting electric push rod is clamped with a lifting swing block. The top of the side end of the lifting swing block is rotatably connected with a lifting linkage frame. The side end of the lifting linkage frame is rotatably connected with a diversion inclined plate; A number of air intake restriction boxes are equidistantly installed on the side end of the porous collection box. A number of cooling fans are equidistantly embedded and installed inside the air intake restriction box; A hollow replacement box is clamped to the inner top end of the integrated desalination box. A communicating exhaust pipe penetrates through the bottom of the side end of the hollow replacement box. An interception condensate hopper is clamped inside the communicating exhaust pipe. The condensate restriction hopper, the relay heat exchange barrel and the side end of the hollow replacement box are all penetrated and connected with a seawater inlet and outlet pipe rack; One end of the hot water discharge pipe is installed through the top end of the relay linkage box. The diversion inclined plate is rotatably installed on the side end of the porous collection box. The longitudinal section of the hollow replacement box is triangular.

[0011] According to the above technical solution, the top end of the discharge positioning pipe is connected with a discharge communicating pipe. The bottom end of the discharge communicating pipe is penetrated and connected with a linkage buffer barrel. The bottom end of the linkage buffer barrel is penetrated and connected with a matching water injection pipe. Control valves are embedded and installed on the side ends of the exhaust orientation pipe and the air inlet and outlet pipe; A booster pump is installed through a motor seat at the positions corresponding to the heat injection treatment pipe, the bottom inlet input pipe, the spray pipe rack and the matching water injection pipe on the side end of the treatment integration frame.

[0012] According to the above technical solution, both the relay linkage barrel and the linkage buffer barrel are clamped to the side end of the treatment integration frame; The input ends of the vacuum pump, the lifting electric push rod, the cooling fan, the control valve and the booster pump are all electrically connected to the output end of an external controller; The input end of the external controller is electrically connected to the output end of an external power supply.

[0013] According to the above technical solution, a slag cleaning and discharging assembly is arranged on the side end of the integrated desalination box; The slag cleaning and discharging assembly includes an exhaust operation hopper; The exhaust operation hopper penetrates through the top end of the integrated desalination box. Reciprocating electric slide rails are symmetrically clamped to the inner bottom of the exhaust operation hopper. One end of the reciprocating electric slide rails is installed with a reciprocating scrubbing box through a slide rail seat; A number of alignment electric push rods are equidistantly installed at the bottom end of the reciprocating scrubbing box. A slag scraping and processing plate is installed at the top ends of the plurality of alignment electric push rods. Extraction hoses penetrate through the bottom end of the reciprocating scrubbing box symmetrically. A vacuum cleaner is clamped at the position corresponding to the extraction hoses at one end of the integrated desalination box; Both ends of the integration and desalination box are symmetrically installed with inlet and outlet electric push rods. One end of each inlet and outlet electric push rod is clamped with an inlet and outlet operation box. Intercepting net plates are clamped inside the exhaust operation hopper, inside the inlet and outlet operation box, and at one end of the air intake restriction box. The bottom end of the special-shaped liquid inlet bucket is connected through a slag discharge treatment pipe, and the bottom end of the slag discharge treatment pipe is connected through a centralized treatment box; Intercepting net plates are clamped inside the special-shaped liquid inlet bucket, the backwashing special-shaped bucket, the relay linkage box, and the linkage buffer bucket. A slag cleaning reciprocating scraper is installed on the side end of the slag cleaning electric slide rail through a slide rail seat. A liquid discharge centralized bucket is clamped at the bottom end of the condensation restriction hopper. Outer discharge treatment pipes penetrate through the side ends of the centralized treatment box, the porous collection box, the liquid discharge centralized bucket, and the relay linkage box. A limiting valve is embedded at one end of the slag discharge treatment pipe and the outer discharge treatment pipe.

[0014] According to the above technical solution, the top end of the slag scraping treatment plate slides and fits with the bottom end of the intercepting net plate. One end of the vacuum cleaner is connected to one end of the extraction hose through a connector. The longitudinal section of the slag scraping treatment plate is L-shaped.

[0015] According to the above technical solution, the inlet and outlet operation box is sleeved and connected with the centralized treatment box. The cross section of the slag cleaning reciprocating scraper is circular; The input ends of the reciprocating electric slide rail, the alignment electric push rod, the vacuum cleaner, the inlet and outlet electric push rod, the slag cleaning electric slide rail, and the limiting valve are all electrically connected to the output end of an external controller.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: The structure of the present invention is scientific and reasonable, and it is safe and convenient to use: 1. A series-connected desalination and dilution component is provided. Hot water is injected into the multi-tube heat exchanger from the bottom through the input conical hopper, the booster pump, and the hot injection treatment pipe. The bottom circular flow guide block forms a flow splitting and counter-flushing of the liquid flow, prolonging the residence time of the liquid flow. The bottom inlet input pipe and the booster pump are used to inject seawater into the special-shaped liquid inlet bucket. The internal air pressure is reduced to between 0.05 and 0.2 bar by the vacuum pump and the inlet and outlet air pipes, so that the seawater boils to generate hot steam at 30°C to 60°C. The exhaust is directed to the backwashing special-shaped bucket and the multi-tube condensation rack through the exhaust direction pipe and the series-connected exhaust pipe. Seawater is injected into the backwashing special-shaped bucket through the seawater inlet and outlet pipe rack and the booster pump. By increasing the air pressure in the backwashing special-shaped bucket, the hot steam forms condensed water, and the heat is introduced into the seawater for preheating treatment of the seawater, thereby realizing the desalination recovery of seawater and the preparation treatment of seawater preheating. This enables the subsequent heating and evaporation of seawater to increase its heating speed. By using multiple groups of special-shaped liquid inlet buckets and backwashing special-shaped buckets in cooperation, repeated heat exchange between hot water and seawater is achieved, realizing series-connected desalination treatment. This eliminates the need to add additional heat sources during the treatment process, and continuously and fully performs heat treatment on the flowing heat, improving the speed and quantity of seawater desalination.

[0017] 2. The hot water is sprayed and discharged externally through a relay linkage box, a booster pump, a spray pipe rack, and a spray treatment head. In cooperation with an air intake restriction box and a cooling fan, the external air flow is driven to flow, and the sprayed water is directly blown to cool down. The lifting electric push rod, the lifting swing block, and the lifting linkage frame drive the diversion inclined plate to rotate to change the air inlet direction. In cooperation with a hollow replacement box, a communicating exhaust pipe, and an interception lower condensate hopper, the air flow velocity is controlled. At the same time, the heat blown out is absorbed by seawater to realize seawater preheating treatment. At the same time, the water vapor in the blown-out air flow is intercepted to realize water reflux and seawater preheating treatment, making full use of the heat, increasing the seawater temperature while reducing water resource waste, and ensuring the subsequent seawater desalination speed; 3. By simultaneously feeding water at the bottom in two steps, the contact area is increased, and in cooperation with a diversion and flow limiting device, the water flow velocity and the hot steam flow velocity are limited. Utilizing different pressure environments, the seawater evaporation and distilled water condensation are processed in sections, increasing the speed of seawater desalination into fresh water. In cooperation with the direct blowing of wind to take away heat, and through an interception preheating component to intercept heat for preheating low-temperature seawater. By combining three-stage preheating and one-step low-pressure thermal distillation, continuous heating and desalination of seawater are realized. In cooperation with three-stage series thermal distillation, continuous heat exchange between hot water and seawater is realized, effectively solving the situation in the prior art that a large amount of additional energy is required for seawater desalination treatment, reducing the heat resource recovery rate, and at the same time avoiding the situation that seawater cannot generate hot steam under normal pressure, resulting in a reduction in the water separation speed and affecting the desalination effect and efficiency. The seawater desalination speed is effectively increased, and the desalination cost is reduced.

[0018] 4. A slag cleaning and external discharge assembly is provided. The reciprocating electric slide rail drives the reciprocating scrubbing box to move. In cooperation with the positioning electric push rod, the slag scraping treatment plate is driven to rise and fit to the bottom end of the interception net plate. The impurities at the position of the reciprocating scrubbing box are sucked by a vacuum cleaner and an extraction hose to realize the cleaning treatment of the exhaust position in the exhaust operation hopper, reducing the situation that the distilled water and the reflux water are polluted by the falling of impurities. The slag cleaning electric slide rail drives the slag cleaning reciprocating scraper to move, scraping off and separating the salt substance precipitates remaining on the surfaces of the special-shaped liquid inlet barrel, the backwashing special-shaped barrel, the relay linkage box, and the linkage buffer barrel. In cooperation with the external discharge treatment pipe, liquid discharge treatment is realized, discharging the seawater and salt impurities with a higher concentration. In cooperation with the inlet and outlet electric push rod to drive the inlet and outlet operation box, the concentration of seawater is controlled during the seawater desalination process, avoiding the situation that excessive salt precipitates adhere to the side end of the device due to too high concentration, and avoiding the situation that the device is accelerated in corrosion due to too high concentration, increasing the service life of the device. At the same time, the high-concentration seawater is recycled, enabling the resources to be fully utilized, and effectively reducing the occurrence of resource waste.

[0019] In summary, by the mutual cooperation of the series-connected fresh water blocking components and the slag cleaning and discharging components, through the multi-stage slag cleaning cooperation and the control of the seawater salt content, and by using the continuously flowing and interconnected seawater for mutual treatment, the waste heat of the power plant and the seawater can fully exchange heat, improving the speed and effect of seawater desalination, and avoiding the situation of accelerating the corrosion rate of the device due to seawater desalination and concentration, thereby effectively ensuring the efficiency of seawater desalination. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings are used to provide a further understanding of the present invention, and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention, and do not constitute a limitation to the present invention.

[0021] In the drawings: Figure 1 is a schematic three-dimensional structure diagram of the present invention; Figure 2 is a schematic structure diagram of the series-connected fresh water blocking components of the present invention; Figure 3 is a schematic installation structure diagram of the processing integration frame of the present invention; Figure 4 is a schematic installation structure diagram of the special-shaped double-pass frame of the present invention; Figure 5 is a schematic installation structure diagram of the backflush special-shaped barrel of the present invention; Figure 6 is a schematic installation structure diagram of the relay linkage box of the present invention; Figure 7 is a schematic installation structure diagram of the lifting swing block of the present invention; Figure 8 is a schematic structure diagram of the slag cleaning and discharging components of the present invention; Figure 9 is a schematic installation structure diagram of the extraction hose of the present invention; Figure 10 is a schematic installation structure diagram of the incoming and outgoing electric push rods of the present invention; Reference numerals in the figure: 1, integrated desalination tank; 2. Series-connected fresh water interception assembly; 201. Processing and integration frame; 202. Special-shaped liquid inlet bucket; 203. Feeding conical hopper; 204. Backflush special-shaped bucket; 205. Condensation limiting hopper; 206. Multi-tube heat exchange frame; 207. Bottom circular flow guide block; 208. Outer discharge positioning pipe; 209. Exhaust gas orientation pipe; 210. Multi-tube condensation frame; 211. Upper limit blocking hopper; 212. Series-connected exhaust pipe; 213. Accelerated impact hopper; 214. Special-shaped double-pass frame; 215. Blocking inclined block; 216. Heat injection treatment pipe; 217. Bottom inlet feeding pipe; 218. Relay linkage bucket; 219. Outer discharge linkage pipe; 220. Relay heat exchange bucket; 221. Seawater inlet and outlet pipe frame; 222. Vacuum pump; 223. Inlet and outlet gas pipe; 224. Hot water outer discharge pipe; 225. Relay linkage box; 226. Spray pipe frame; 227. Spray treatment head; 228. Porous collection box; 229. Wind blowing treatment hole; 230. Load-bearing fixed block; 231. Lifting electric push rod; 232. Lifting swing block; 233. Lifting linkage frame; 234. Flow guide inclined plate; 235. Air inlet limiting box; 236. Cooling fan; 237. Hollow replacement box; 238. Series-connected exhaust pipe; 239. Outer discharge series-connected pipe; 240. Linkage buffer bucket; 241. Matching water injection pipe; 242. Intercepting lower condensation hopper; 243. Control valve; 244. Booster pump; 3. Slag cleaning and outer discharge assembly; 301. Exhaust operation hopper; 302. Reciprocating electric slide rail; 303. Reciprocating brushing box; 304. Alignment electric push rod; 305. Slag scraping treatment plate; 306. Extraction hose; 307. Vacuum cleaner; 308. Inlet and outlet electric push rod; 309. Inlet and outlet operation box; 310. Intercepting net plate; 311. Slag discharge treatment pipe; 312. Centralized treatment box; 313. Slag cleaning electric slide rail; 314. Slag cleaning reciprocating scraper; 315. Liquid discharge centralized bucket; 316. Outer discharge treatment pipe; 317. Limit valve. Detailed implementation mode

[0022] The preferred embodiments of the present invention will be 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.

[0023] Embodiment: As Figures 1-10 shown, the present invention provides a technical solution, a seawater desalination device for the waste heat of a power plant cooling tower, including an integrated desalination tank 1, and a series-connected fresh water interception assembly 2 is arranged inside the integrated desalination tank 1; The series-connected desalination assembly 2 includes a processing and integration frame 201, a special-shaped liquid inlet barrel 202, an input conical hopper 203, a backflush special-shaped barrel 204, a condensation limiting hopper 205, a multi-tube heat exchange frame 206, a bottom circular guide block 207, an outer discharge positioning pipe 208, an exhaust gas orientation pipe 209, a multi-tube condensation frame 210, an upper limit blocking hopper 211, a series-connected exhaust pipe 212, an acceleration impact hopper 213, a special-shaped double-pass frame 214, a blocking inclined block 215, a hot injection treatment pipe 216, a bottom inlet input pipe 217, a relay linkage barrel 218, an outer discharge linkage pipe 219, a relay heat exchange barrel 220, a seawater inlet and outlet pipe frame 221, a vacuum pump 222, an inlet and outlet gas pipe 223, a hot water outer discharge pipe 224, a relay linkage box 225, a spray pipe frame 226, a spray treatment head 227, a porous collection box 228, a wind blowing treatment hole 229, a load-bearing fixed block 230, a lifting electric push rod 231, a lifting swing block 232, a lifting linkage frame 233, a guide inclined plate 234, an air inlet limiting box 235, a cooling fan 236, a hollow replacement box 237, a series-connected exhaust pipe 238, an outer discharge series-connected pipe 239, a linkage buffer barrel 240, a matching water injection pipe 241, an interception lower condensation hopper 242, a control valve 243, and a booster pump 244; The processing and integration frame 201 is clamped inside the integrated desalination tank 1. A number of special-shaped liquid inlet barrels 202 are equidistantly clamped at the top end inside the processing and integration frame 201. The longitudinal sections of the special-shaped liquid inlet barrel 202 and the backflush special-shaped barrel 204 are both T-shaped, realizing the bottom sedimentation treatment of salt substances in seawater and the centralized treatment of impurities. The bottom end of the special-shaped liquid inlet barrel 202 is welded with an input conical hopper 203. A number of backflush special-shaped barrels 204 are equidistantly clamped at the position inside the processing and integration frame 201 close to the special-shaped liquid inlet barrel 202. The bottom end of the backflush special-shaped barrel 204 is welded with a condensation limiting hopper 205; The multi-tube heat exchange frame 206 is clamped inside the special-shaped liquid inlet barrel 202. A number of bottom circular guide blocks 207 are equidistantly clamped inside the multi-tube heat exchange frame 206. The middle part of the top end of the multi-tube heat exchange frame 206 is connected through and penetrated with an outer discharge positioning pipe 208. A number of exhaust gas orientation pipes 209 are equidistantly connected through and penetrated inside the multi-tube heat exchange frame 206. The exhaust gas orientation pipe 209 is placed inside the special-shaped liquid inlet barrel 202, realizing the stable discharge of hot steam; The multi-tube condensation frame 210 is clamped inside the backflush special-shaped barrel 204. The longitudinal sections of the multi-tube heat exchange frame 206 and the multi-tube condensation frame 210 are I-shaped, ensuring the stability of heat exchange and clamping limit. A number of upper limit blocking hoppers 211 are equidistantly clamped inside the multi-tube condensation frame 210. The series-connected exhaust pipes 212 are clamped at the top ends of both the special-shaped liquid inlet barrel 202 and the backflush special-shaped barrel 204. A number of acceleration impact hoppers 213 are equidistantly clamped inside the series-connected exhaust pipe 212. The top end inside the backflush special-shaped barrel 204 is welded with a special-shaped double-pass frame 214. The blocking inclined block 215 is welded inside the special-shaped double-pass frame 214; At the bottom end of the input conical hopper 203, a hot injection treatment pipe 216 is installed. At the bottom end of the special-shaped liquid inlet barrel 202, a bottom inlet input pipe 217 is connected through penetration. One end of the bottom inlet input pipe 217 away from the input conical hopper 203 is connected through penetration to a relay linkage barrel 218. At the top end of the relay linkage barrel 218, an outer discharge linkage pipe 219 is connected through penetration. The bottom inlet input pipe 217 is embedded and installed inside the special-shaped liquid inlet barrel 202. One end of the outer discharge linkage pipe 219 is installed through penetration at the top of the side end of the backwash special-shaped barrel 204, realizing the distributed injection of hot water and seawater, avoiding mutual interference, and improving the treatment effect and efficiency. At the side end of the series exhaust pipe 212, a relay heat exchange barrel 220 is clamped; At the top of the side ends of the special-shaped liquid inlet barrel 202 and the backwash special-shaped barrel 204, a vacuum pump 222 is installed through a motor base. One end of the vacuum pump 222 is connected to one end of the air inlet and outlet pipe 223 through a rotary joint to ensure the stability of the internal air pressure control. At the position corresponding to the vacuum pump 222 on the side ends of the special-shaped liquid inlet barrel 202 and the backwash special-shaped barrel 204, the air inlet and outlet pipe 223 is connected through penetration. At the top end of one of the special-shaped liquid inlet barrels 202, a hot water outer discharge pipe 224 is connected through penetration. One end of the hot water outer discharge pipe 224 is installed through penetration at the top end of the relay linkage box 225, realizing the hot water outer discharge treatment and improving the stability of the linkage connection. At the position corresponding to the hot water outer discharge pipe 224 on the top end of the treatment integration frame 201, a relay linkage box 225 is clamped; One end of the relay linkage box 225 is connected through penetration to a spray pipe rack 226. At the bottom end of the spray pipe rack 226, a number of spray treatment heads 227 are installed equidistantly through rotary joints. On one side of the top end of the treatment integration frame 201, a porous collection box 228 is installed. A number of air blowing treatment holes 229 are equidistantly opened on the side end of the porous collection box 228; At the inner bottom end of the porous collection box 228, a load-bearing fixed block 230 is rotationally connected. One end of the load-bearing fixed block 230 is installed with a lifting electric push rod 231. One end of the lifting electric push rod 231 is clamped with a lifting swing block 232. At the top of the side end of the lifting swing block 232, a lifting linkage frame 233 is rotationally connected. At the side end of the lifting linkage frame 233, a diversion inclined plate 234 is rotationally connected. The diversion inclined plate 234 is rotationally installed at the side end of the porous collection box 228, realizing a steady rotation linkage and controlling the position and speed of air inlet and outlet; A number of air inlet restriction boxes 235 are equidistantly installed on the side end of the porous collection box 228. A number of cooling fans 236 are equidistantly embedded and installed inside the air inlet restriction boxes 235. At the top end of the inner side of the integrated desalination box 1, a hollow replacement box 237 is clamped. The longitudinal section of the hollow replacement box 237 is triangular, realizing the interception treatment of the discharged water vapor and reducing water resource waste. At the bottom of the side end of the hollow replacement box 237, a through exhaust pipe 238 is connected through penetration. Inside the through exhaust pipe 238, an intercepted lower condensation hopper 242 is clamped. The condensation restriction hopper 205, the relay heat exchange barrel 220, and the hollow replacement box 237 are all connected through penetration to a seawater inlet and outlet pipe rack 221; Two of the special-shaped liquid inlet barrels 202 are each connected through the top end with an external discharge connecting pipe 239. The bottom end of the external discharge connecting pipe 239 is connected through penetration with a linkage buffer barrel 240. The relay linkage barrel 218 and the linkage buffer barrel 240 are both clamped to the side end of the processing and integration frame 201 to achieve support positioning and limitation. The bottom end of the linkage buffer barrel 240 is connected through penetration with a matching water injection pipe 241. Control valves 243 are embedded and installed on the side ends of the exhaust orientation pipe 209 and the air inlet and outlet pipe 223. A booster pump 244 is installed through a motor base at the position on the side end of the processing and integration frame 201 corresponding to the hot injection treatment pipe 216, the bottom inlet input pipe 217, the spray pipe rack 226, and the matching water injection pipe 241; For the stable operation of the device, the input ends of the vacuum pump 222, the lifting electric push rod 231, the cooling fan 236, the control valve 243, and the booster pump 244 are all electrically connected to the output end of an external controller; The input end of the external controller is electrically connected to the output end of an external power supply.

[0024] A slag cleaning and external discharge assembly 3 is arranged on the side end of the integrated desalination tank 1; The slag cleaning and external discharge assembly 3 includes an exhaust operation hopper 301, a reciprocating electric slide rail 302, a reciprocating brushing box 303, a positioning electric push rod 304, a slag scraping treatment plate 305, an extraction hose 306, a vacuum cleaner 307, an inlet and outlet electric push rod 308, an inlet and outlet operation box 309, an interception net plate 310, a slag discharge treatment pipe 311, a centralized treatment tank 312, a slag cleaning electric slide rail 313, a slag cleaning reciprocating scraper 314, a liquid discharge centralized barrel 315, an external discharge treatment pipe 316, and a limiting valve 317; An exhaust operation hopper 301 is connected through penetration with the top end of the integrated desalination tank 1. Reciprocating electric slide rails 302 are symmetrically clamped to the inner bottom of the exhaust operation hopper 301. One end of the reciprocating electric slide rail 302 is installed with a reciprocating brushing box 303 through a slide rail seat. A number of positioning electric push rods 304 are equidistantly installed at the bottom end of the reciprocating brushing box 303. A slag scraping treatment plate 305 is installed at the top ends of the multiple positioning electric push rods 304. Extraction hoses 306 are symmetrically connected through penetration with the bottom end of the reciprocating brushing box 303. A vacuum cleaner 307 is clamped at the position on one end of the integrated desalination tank 1 corresponding to the extraction hoses 306; At both ends of the integrated desalination tank 1, inlet and outlet electric push rods 308 are symmetrically installed. One end of the inlet and outlet electric push rod 308 is clamped with an inlet and outlet operation box 309. Inside the exhaust operation hopper 301, inside the inlet and outlet operation box 309, and one end of the air inlet restriction box 235, an interception net plate 310 is clamped. The top end of the slag scraping treatment plate 305 is slidably attached to the bottom end of the interception net plate 310. One end of the vacuum cleaner 307 is connected to one end of the extraction hose 306 through a connector. The longitudinal section of the slag scraping treatment plate 305 is L-shaped, realizing stable slag scraping treatment and ensuring the cleaning treatment of the exhaust position. The bottom end of the special-shaped liquid inlet barrel 202 is connected through a slag discharge treatment pipe 311. The bottom end of the slag discharge treatment pipe 311 is connected through a centralized treatment box 312. The inlet and outlet operation box 309 is sleeved and connected with the centralized treatment box 312, realizing the interception treatment of seawater and impurities; Inside the special-shaped liquid inlet barrel 202, the backflush special-shaped barrel 204, the relay linkage box 225, and the linkage buffer barrel 240, a slag cleaning electric slide rail 313 is clamped. The side end of the slag cleaning electric slide rail 313 is installed with a slag cleaning reciprocating scraper 314 through a slide rail seat. The cross-section of the slag cleaning reciprocating scraper 314 is circular, ensuring the stability of slag cleaning. The bottom end of the condensation restriction hopper 205 is clamped with a liquid discharge centralized barrel 315. The side ends of the centralized treatment box 312, the porous collection box 228, the liquid discharge centralized barrel 315, and the relay linkage box 225 are all connected through an external discharge treatment pipe 316. One end of the slag discharge treatment pipe 311 and the external discharge treatment pipe 316 is embedded with a restriction valve 317; For the stable operation of the device, the input ends of the reciprocating electric slide rail 302, the alignment electric push rod 304, the vacuum cleaner 307, the inlet and outlet electric push rod 308, the slag cleaning electric slide rail 313, and the restriction valve 317 are all electrically connected to the output end of an external controller.

[0025] The working principle and usage process of the present invention: When using the waste heat of the power plant cooling tower to desalinate seawater, seawater is injected into the inner sides of the relay heat exchange barrel 220 and the backflush special-shaped barrel 204 through the booster pump 244 and the seawater inlet and outlet pipe rack 221. The seawater enters the external discharge linkage pipe 219 along the backflush special-shaped barrel 204 and is discharged into the inner side of the relay linkage barrel 218. Then, seawater is injected between the special-shaped liquid inlet barrel 202 and the multi-tube heat exchange rack 206 through the booster pump 244 and the bottom inlet input pipe 217, realizing the filling of seawater in the special-shaped liquid inlet barrel 202, the backflush special-shaped barrel 204, the relay linkage barrel 218, and the relay heat exchange barrel 220. At this time, the air in the special-shaped liquid inlet barrel 202 and the backflush special-shaped barrel 204 is extracted by the vacuum pump 222 and the inlet and outlet air pipes 223, making the internal environment of the special-shaped liquid inlet barrel 202 and the backflush special-shaped barrel 204 form a low-pressure environment, and controlling the pressure between 0.05 and 0.2 bar. At this time, the boiling point of seawater is between 30°C and 60°C; Meanwhile, high-temperature cooling water from the power plant is injected into the inner side of the input conical hopper 203 by the booster pump 244 and the hot injection treatment pipe 216. The high-temperature water flows into the inner side of the multi-tube heat exchange rack 206 along the input conical hopper 203, and finally flows into the inner side of the linkage buffer barrel 240 along the outer discharge connection pipe 239. At this time, the high-temperature water is injected into the inner sides of the second input conical hopper 203 and the multi-tube heat exchange rack 206 by the booster pump 244 and the matching water injection pipe 241 to achieve continuous injection treatment of the high-temperature water. During the hot water injection process, a conical backwash area is formed between the bottom circular guide block 207 and the multi-tube heat exchange rack 206. When the water flow reaches the conical backwash area, the water flow will be blocked and refluxed, and the two water flows impact each other, slowing down the flow rate of the water flow. The temperature in the hot water is exchanged to the inside of the seawater through the multi-tube heat exchange rack 206. At this time, the seawater will gradually boil under the low-pressure environment, causing the water in the seawater to undergo thermal evaporation under the low-pressure environment. The control valve 243 is used to open the exhaust orientation pipe 209, and the hot steam is discharged into the inner sides of the special-shaped liquid inlet barrel 202 and the exhaust orientation pipe 209 along the special-shaped liquid inlet barrel 202 and the exhaust orientation pipe 209 to achieve the external discharge of the hot steam and the internal pressure control treatment; At this time, since the air pressure in the backwash special-shaped barrel 204 is also between 0.05 and 0.2 bar, the high-pressure hot steam impacts and enters the inner side of the backwash special-shaped barrel 204 through the series exhaust pipe 212. The matching acceleration impact hopper 213 performs a large-orifice intake and small-hole treatment on the air flow to increase the outlet speed. The hot steam impacts the special-shaped double-pass rack 214 and the blocking inclined block 215 to disperse the air flow, causing the directional air flow to form a turbulent flow. The turbulent flows impact each other to reduce the air flow velocity. At the same time, the air flow flows along the multi-tube condensation rack 210. At this time, the upper limit blocking hopper 211 decelerates the air flow. When the air flow reduces its flow, the heat is transferred to the seawater located in the backwash special-shaped barrel 204 through the multi-tube condensation rack 210. At this time, the air pressure of the seawater is in the normal pressure state, so the seawater will not boil and undergo thermal evaporation. However, the heat dissipated by the steam will preheat the seawater to achieve the preheating treatment of the seawater and make full use of the heat. At the same time, the temperature of the hot steam decreases and condensation occurs. The condensed water drips into the inner side of the condensation limiting hopper 205 along the multi-tube condensation rack 210 and flows into the inner side of the liquid discharge concentration barrel 315 along the condensation limiting hopper 205 to achieve the rapid collection treatment of distilled water during seawater desalination, and preheat the seawater using the heat to achieve full heat treatment; When a certain amount of heat is absorbed from the hot water at the position of the first special-shaped liquid inlet bucket 202, the hot water flows into the linkage buffer bucket 240 along the external drainage connection pipe 239. The booster pump 244 and the cooperating water injection pipe 241 extract the hot water in the linkage buffer bucket 240 and inject the hot water back into the inner side of the special-shaped liquid inlet bucket 202. By repeating the above operations, a part of the heat of the hot water is absorbed by the seawater again, realizing the re-absorption of waste heat and the low-pressure thermal evaporation treatment of seawater. Finally, the hot water injects the treated waste hot water into the inner side of the relay linkage box 225 along the hot water external drainage pipe 224, realizing the full treatment of the hot water and the centralized treatment of the treated hot water; The booster pump 244 and the spray pipe rack 226 extract the hot water in the relay linkage box 225, and the hot water sprays downward along the spray pipe rack 226 and the spray treatment head 227. At this time, the cooling fan 236 and the air intake restriction box 235 drive the air flow into the inner side of the porous collection box 228. The air flow follows the air blowing treatment holes 229, and the air flow of the wind directly blows the atomized water, taking away the heat on the water surface. The air flow flows and impacts the inner side of the hollow replacement box 237. At this time, the seawater inlet and outlet pipe rack 221 injects seawater into the hollow replacement box 237. When the air flow carrying heat contacts the surface of the hollow replacement box 237, the seawater absorbs heat again, and the external exhaust treatment and the diversion restriction treatment are carried out by using the connection exhaust pipe 238 and the intercepting lower condensate hopper 242 to slow down the air flow velocity, realizing the full cooling and condensation recovery of the water vapor. Finally, the air flow is exhausted along the exhaust operation bucket 301, realizing the air flow circulation treatment and ensuring the full cooling treatment of the hot water. At this time, part of the water vapor containing impurities in the air flow is intercepted, and the water vapor will condense and drip downward after the heat is reduced, realizing the reflux treatment and reducing the waste of water resources. During the air intake process, the lifting electric push rod 231 drives the lifting swing block 232 and the lifting linkage frame 233 to push the diversion inclined plate 234 to rotate and swing along the porous collection box 228, driving the lifting electric push rod 231 to rotate by cooperating with the load-bearing fixed block 230, guiding the air flow to directly blow the atomized water, so as to fully cool and treat it, and the cooled water enters the inner side of the porous collection box 228, and the return water flows back along the external drainage treatment pipe 316, realizing the water flow reflux treatment; When the device is in use, the reciprocating electric slide rail 302 drives the reciprocating scrubbing box 303 to reciprocate along the exhaust operation hopper 301. The alignment electric push rod 304 drives the slag scraping treatment plate 305 to rise and fit to the bottom end of the interception net plate 310. The impurities at the position of the reciprocating scrubbing box 303 are extracted by the vacuum cleaner 307 and the extraction hose 306, realizing the cleaning treatment of the exhaust position. The slag cleaning electric slide rail 313 drives the slag cleaning reciprocating scraper 314 to reciprocate along the special-shaped liquid inlet barrel 202, the backwashing special-shaped barrel 204, the relay linkage box 225 and the linkage buffer barrel 240, scraping and removing the residual salt substances precipitated on their surfaces. At this time, the restriction valve 317 opens the slag discharge treatment pipe 311, discharging the seawater with a higher concentration and salt impurities into the inner side of the inlet and outlet operation box 309. The interception net plate 310 intercepts and separates the seawater and impurities, and the seawater is discharged externally through the external discharge treatment pipe 316, realizing the control of the seawater concentration during the seawater desalination process, avoiding the excessive salt precipitation attaching to the side end of the device due to too high concentration, and avoiding the situation of accelerated corrosion of the device due to too high concentration, improving the service life of the device. The inlet and outlet electric push rod 308 drives the inlet and outlet operation box 309 to move along the centralized treatment box 312, facilitating the staff to quickly clean the slag.

[0026] Finally, it should be noted that the above are only the preferred examples of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A seawater desalination device using waste heat from a power plant cooling tower, comprising an integrated desalination tank (1), characterized in that: A series desalination blockage assembly (2) is arranged inside the integrated desalination tank (1); The series interception assembly (2) comprises a processing integration frame (201); The integrated desalination box (1) has an integrated processing frame (201) clamped on the inside, a plurality of special-shaped liquid inlet barrels (202) are clamped on the top of the inside of the integrated processing frame (201) at equal distances, and a conical inlet bucket (203) is welded on the bottom of the special-shaped liquid inlet barrel (202); A plurality of recoil-shaped barrels (204) are equidistantly clamped on the inner side of the processing integration frame (201), and a coagulation limiting bucket (205) is welded to the bottom end of each recoil-shaped barrel (204); A multi-tube heat exchange rack (206) is clamped on the inner side of the special-shaped liquid inlet barrel (202), and a plurality of bottom circular guide blocks (207) are clamped on the inner side of the multi-tube heat exchange rack (206) at equal intervals; An outer row positioning pipe (208) is connected through the middle of the top of the multi-tube heat exchange rack (206), and an exhaust directional pipe (209) is connected through the inner side of the multi-tube heat exchange rack (206) at equal intervals. A multi-tube condensation rack (210) is clamped on the inner side of the recoil special-shaped barrel (204), and a plurality of upper limit blocking buckets (211) are clamped on the inner side of the multi-tube condensation rack (210) at equal intervals; The top ends of the special-shaped liquid inlet barrel (202) and the special-shaped recoil barrel (204) are both clamped with exhaust pipes (212) in series.

2. The desalination device for seawater using waste heat from a power plant cooling tower according to claim 1, characterized in that: The longitudinal sections of the special-shaped liquid inlet barrel (202) and the recoil special-shaped barrel (204) are both T-shaped, the longitudinal sections of the multi-tube heat exchange rack (206) and the multi-tube condensation rack (210) are I-shaped, and the exhaust directional pipe (209) is placed inside the special-shaped liquid inlet barrel (202).

3. The desalination device for seawater using waste heat from a power plant cooling tower according to claim 1, characterized in that: A plurality of accelerating impact buckets (213) are equidistantly connected to the inner side of the series exhaust pipe (212); a special-shaped double-through frame (214) is welded to the inner top end of the recoil special-shaped barrel (204); and a blocking inclined block (215) is welded to the inner side of the special-shaped double-through frame (214); A hot injection treatment pipe (216) is installed at the bottom end of the injection cone bucket (203); a bottom inlet injection pipe (217) is connected through the bottom end of the special-shaped liquid inlet barrel (202); a relay linkage barrel (218) is connected through the end of the bottom inlet injection pipe (217) away from the injection cone bucket (203); an external exhaust linkage pipe (219) is connected through the top end of the relay linkage barrel (218); and a relay heat exchange barrel (220) is clamped at the side end of the series exhaust pipe (212); A vacuum pump (222) is installed at the top of the side ends of the special-shaped liquid inlet barrel (202) and the special-shaped recoil barrel (204) through a motor seat, and an inlet and outlet air pipe (223) is connected through the side ends of the special-shaped liquid inlet barrel (202) and the special-shaped recoil barrel (204) at positions corresponding to the vacuum pump (222); A hot water discharge pipe (224) is connected through the top of one of the special-shaped liquid inlet barrels (202), and a relay linkage box (225) is clamped at the top of the processing integration frame (201) at a position corresponding to the hot water discharge pipe (224).

4. The seawater desalination device using waste heat from a power plant cooling tower according to claim 3, characterized in that: One end of the relay linkage box (225) is connected through a spray pipe rack (226), and a plurality of spray treatment heads (227) are equidistantly mounted on the bottom end of the spray pipe rack (226) via an adapter. A multi-porous collection box (228) is mounted on one side of the top end of the treatment integration frame (201), and a plurality of air blowing treatment holes (229) are equidistantly opened on the side end of the multi-porous collection box (228); The bottom inlet pipe (217) is embedded and installed inside the special-shaped liquid inlet barrel (202), one end of the external discharge linkage pipe (219) is installed through the top of the side end of the recoil special-shaped barrel (204), and one end of the vacuum pump (222) is connected to one end of the inlet and outlet pipes (223) via an adapter.

5. The seawater desalination device using waste heat from a power plant cooling tower according to claim 4, characterized in that: The bottom inner end of the porous collecting box (228) is rotatably connected to a load-bearing fixed block (230), one end of the load-bearing fixed block (230) is mounted with a lifting electric push rod (231), one end of the lifting electric push rod (231) is clamped with a lifting swing block (232), the top of the side end of the lifting swing block (232) is rotatably connected to a lifting linkage frame (233), and the side end of the lifting linkage frame (233) is rotatably connected to a guide inclined plate (234); A plurality of air intake limiting boxes (235) are equidistantly mounted on the side end of the porous collection box (228), and a plurality of cooling fans (236) are equidistantly embedded and mounted inside the air intake limiting boxes (235); The top inner side of the integrated desalination box (1) is clamped with a hollow replacement box (237), the bottom side of the hollow replacement box (237) is penetrated and connected with a series exhaust pipe (238), the inner side of the series exhaust pipe (238) is clamped with an intercepting lower condensation bucket (242), and the condensation limiting bucket (205), the relay heat exchange barrel (220) and the side end of the hollow replacement box (237) are penetrated and connected with a seawater inlet and outlet pipe rack (221); One end of the hot water discharge pipe (224) is installed through the top of the relay linkage box (225), the guide inclined plate (234) is rotatably installed on the side end of the porous collection box (228), and the longitudinal section of the hollow replacement box (237) is triangular.

6. The seawater desalination device using waste heat from a power plant cooling tower according to claim 5, characterized in that: The top end of the external discharge positioning pipe (208) is connected to an external discharge serial pipe (239), the bottom end of the external discharge serial pipe (239) is connected to a linkage buffer barrel (240), the bottom end of the linkage buffer barrel (240) is connected to a matching water injection pipe (241), and the side ends of the exhaust directional pipe (209) and the inlet and outlet pipes (223) are embedded with control valves (243); A booster pump (244) is installed at the side end of the processing integration frame (201) corresponding to the hot injection processing pipe (216), the bottom inlet pipe (217), the spray pipe frame (226) and the matching water injection pipe (241) through a motor seat.

7. The seawater desalination device using waste heat from a power plant cooling tower according to claim 6, characterized in that: The relay linkage barrel (218) and the linkage buffer barrel (240) are both clamped on the side end of the processing integration frame (201); The input ends of the vacuum pump (222), the lifting electric push rod (231), the cooling fan (236), the control valve (243) and the booster pump (244) 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 seawater desalination device using waste heat from a power plant cooling tower according to claim 7, characterized in that: The side end of the integrated desalination tank (1) is provided with a slag removal and discharge assembly (3); The slag removal and external discharge component (3) comprises an exhaust operation bucket (301); The top of the integrated desalination box (1) is connected through an exhaust operation bucket (301), the bottom of the inner side of the exhaust operation bucket (301) is symmetrically clamped with a reciprocating electric slide rail (302), and one end of the reciprocating electric slide rail (302) is installed with a reciprocating scrubbing box (303) through a slide rail seat; A plurality of aligning electric push rods (304) are equidistantly mounted on the bottom end of the reciprocating scrubbing box (303), a plurality of aligning electric push rods (304) are mounted on the top ends of the plurality of aligning electric push rods (304), an extraction hose (306) is symmetrically connected through the bottom end of the reciprocating scrubbing box (303), and a vacuum cleaner (307) is clamped at one end of the integrated desalination box (1) at a position corresponding to the extraction hose (306); Both ends of the integrated desalination box (1) are symmetrically mounted with inlet and outlet electric push rods (308), one end of the inlet and outlet electric push rods (308) is clamped with an inlet and outlet operation box (309), the inner side of the exhaust operation bucket (301), the inner side of the inlet and outlet operation box (309) and one end of the air intake restriction box (235) are all clamped with interception mesh plates (310), the bottom end of the special-shaped liquid inlet barrel (202) is penetrated and connected with a slag discharge processing pipe (311), and the bottom end of the slag discharge processing pipe (311) is penetrated and connected with a centralized processing box (312); The inner sides of the special-shaped liquid inlet barrel (202), the recoil special-shaped barrel (204), the relay linkage box (225) and the linkage buffer barrel (240) are all clamped with a slag cleaning electric slide rail (313); the side end of the slag cleaning electric slide rail (313) is installed with a slag cleaning reciprocating scraper (314) through a slide rail seat; the bottom end of the condensation limiting bucket (205) is clamped with a drainage concentration barrel (315); the side ends of the centralized processing box (312), the porous collection box (228), the drainage concentration barrel (315) and the relay linkage box (225) are all penetrated and connected with an external discharge processing pipe (316); and one end of the slag discharge processing pipe (311) and the external discharge processing pipe (316) is embedded with a limiting valve (317).

9. The seawater desalination device using waste heat from a power plant cooling tower according to claim 8, characterized in that: The top end of the scraping plate (305) is slidably fitted with the bottom end of the intercepting mesh plate (310), one end of the vacuum cleaner (307) is connected to one end of the extraction hose (306) via an adapter, and the longitudinal section of the scraping plate (305) is L-shaped.

10. The seawater desalination device using waste heat from a power plant cooling tower according to claim 8, characterized in that: The inlet and outlet operation box (309) is sleeve-connected with the centralized processing box (312), and the cross section of the slag-cleaning reciprocating scraper (314) is circular; The input ends of the reciprocating electric slide rail (302), the alignment electric push rod (304), the dust collector (307), the in-and-out electric push rod (308), the slag cleaning electric slide rail (313) and the limiting valve (317) are all electrically connected to the output end of the external controller.

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