Power plant desulfurization wastewater treatment device

Abstract

The utility model discloses a desulfurization wastewater treatment device for a power plant. The desulfurization wastewater treatment device comprises a device shell, a pair of pipeline retention blocks and a flue gas coiling pipeline, the utility model relates to the technical field of power plant waste water treatment, the device realizes efficient solidification treatment of desulfurization waste water through a reciprocating condensation cleaning structure, the waste water is firstly subjected to precipitation treatment, then is fed into an atomization desulfurization assembly, is uniformly atomized and is released into a device shell, and in the process, natural heat energy contained in flue gas is utilized to realize efficient solidification treatment of the desulfurization waste water. Sulfides in the solution are effectively evaporated and solidified on the outer surface of the flue gas coiling pipeline; in order to ensure the cleanness and efficient heat transfer of the outer surface of the flue gas coiled pipeline, the pair of scraping and cleaning rollers can brush and clean the outer surface of the flue gas coiled pipeline continuously in a reciprocating manner, so that the phenomenon of sulfide caking is effectively prevented, and the problem that the heat transfer efficiency is reduced due to overlarge caking is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to power plant wastewater treatment technical field, concretely is a power plant desulfurization wastewater treatment device. BACKGROUND

[0002] Coal-fired power generation is still the leading energy in China, but its emission of sulfur oxide flue gas seriously threatens the environment, for this, most power plants adopt wet desulfurization process, add limestone to absorb sulfur dioxide, but produce desulfurization wastewater rich in suspended solids, easy to scale ions and heavy metals, and direct discharge will seriously pollute water area, so China requires power plant to realize desulfurization wastewater "zero discharge", current part power plant adopts air preheater front end high temperature flue gas flushing atomization device, effectively avoids the condensation slagging problem caused by temperature difference, however, the atomization wastewater directly contacts with high temperature flue gas, makes flue gas impurities and wastewater evaporation sulfide mixed, is difficult to separate and reuse, not only reduces the processing efficiency, but also increases the sulfide recovery difficulty, in view of the limitation of prior art, optimizing desulfurization wastewater treatment device, improving processing efficiency and sulfide recovery rate, for protecting ecological environment and improving power plant economic benefit has great significance, through technical innovation, realizes the efficient treatment and resource utilization of desulfurization wastewater, is the key problem to be solved urgently at present, for the above problems, there may be technical means to solve in prior art, but the case wants to provide a kind of alternative or replacement technical scheme. CONTENT OF UTILITY MODEL

[0003] To realize the above object, the utility model is realized through the following technical scheme: a power plant desulfurization wastewater treatment device, it includes: device shell, a pair of pipeline retaining block and flue gas coiled pipeline, a pair of pipeline retaining block is installed on the device shell respectively, and a pair of pipeline retaining block is sleeved on the outer side of flue gas coiled pipeline, flue gas coiled pipeline is installed in the device shell, and reciprocating condensation cleaning structure is installed on the device shell, reciprocating condensation cleaning structure includes: scraping cleaning power bin, scraping cleaning power motor, scraping transmission rod, rod circulating guide groove, displacement cladding frame, displacement guide shuttle, auxiliary sliding sleeve, guide auxiliary sliding rod, water vapor discharge pipeline, guide magnet, transmission magnet, link installation plate and a pair of scraping cleaning roller;

[0004] The scraping power bin is mounted on the device shell, the scraping power motor is mounted in the scraping power bin, the scraping power bin is connected with the scraping transmission rod, the scraping transmission rod is provided with the upper rod circulating guide groove, the scraping transmission rod is inserted into the displacement covering frame, the displacement covering frame is mounted on the auxiliary sliding sleeve, the displacement covering frame is connected with the guide magnet, the guide magnet is opposite to the transmission magnet, the displacement guide shuttle is mounted on the displacement covering frame through the rotating shaft, and the displacement guide shuttle is inserted into the upper rod circulating guide groove.

[0005] It should be noted that, in the above, the high-temperature flue gas generated by the generator set first flows into the flue gas coiled pipe in the device shell through the flue gas coiled pipe at the pipe retaining block on one side, and then flows back into the desulfurization and denitrification tower from the other end. The high-temperature flue gas heats the flue gas coiled pipe, causing the surface of the flue gas coiled pipe in the device shell to be in a high-temperature state. The desulfurization wastewater passes through the atomizing desulfurization assembly and is sprayed into the device shell. After contacting the high-temperature flue gas coiled pipe, the desulfurization wastewater rapidly completes evaporation. The water evaporates and is discharged from the water vapor discharge pipe. The sulfides in the desulfurization wastewater become solid and fall into the hot evaporation tank or adhere to the outer surface of the flue gas coiled pipe, completing the rapid evaporation treatment of the desulfurization wastewater. At the same time of desulfurization and solidification, the scraping power bin in the scraping power motor rotates, thereby driving the scraping transmission rod to rotate. At this time, the displacement guide shuttle in the displacement covering frame is limited and guided by the upper rod circulating guide groove on the scraping transmission rod, so that the displacement covering frame reciprocates on the scraping transmission rod with the assistance of the guide auxiliary sliding rod and the auxiliary sliding sleeve. The guide magnet corresponds to the transmission magnet below through the magnet, thereby driving the connection installation plate and the pair of scraping rollers thereon to constantly brush the outer surface of the flue gas coiled pipe in the device shell through the bristles arranged on the scraping rollers, thereby preventing the agglomeration from being too large. After the sulfide solid is accumulated to a certain extent, it can be conveniently treated through the closable sulfide removal port arranged on the device shell. The split-type closing door arranged on the device shell can facilitate engineers to maintain and repair the flue gas coiled pipe in the device shell.

[0006] Preferably, the atomizing desulfurization assembly comprises a plurality of spray chimneys, water mist transmission pipelines, industrial atomizers, liquid delivery pipes, and wastewater sedimentation tanks.

[0007] A plurality of said spray chimneys are respectively mounted on said device shell, and a plurality of said spray chimneys are respectively connected with said water mist transmission pipeline, said industrial atomizer is connected with said water mist transmission pipeline, said liquid delivery pipe is connected with said industrial atomizer, and said wastewater precipitation tank is connected with said liquid delivery pipe;

[0008] It should be noted that, in the above, the desulfurization wastewater is precipitated in the wastewater precipitation tank, the supernatant is input into the industrial atomizer through the liquid delivery pipe, the supernatant is atomized, and the atomized supernatant is sprayed upward through the water mist transmission pipeline and the plurality of spray chimneys connected therewith, and after contacting the outer surface of the flue gas coiled pipeline in a high-temperature state, the atomized supernatant is rapidly evaporated, the water vapor after evaporation is discharged through the water vapor discharge pipeline, and the sulfides in the desulfurization wastewater become solid and fall into the device shell or adhere to the outer surface of the flue gas coiled pipeline. In addition, there is a certain distance between the plurality of spray chimneys and the flue gas coiled pipeline in the device shell, which avoids the problem of condensation slag caused by too high temperature difference, and eliminates the need to clean and prevent blockage.

[0009] Preferably, a maintenance access is arranged on the cleaning power bin.

[0010] Preferably, a double-leaf closure door is arranged on the device shell.

[0011] Preferably, bristles are arranged on the cleaning roller.

[0012] Preferably, a closable sulfide removal opening is arranged on the device shell.

[0013] Beneficial effects

[0014] The utility model provides a kind of power plant desulfurization wastewater treatment device. With the following beneficial effects, compared with prior art: the device is realized by reciprocating condensation cleaning structure The efficient solidification treatment of desulfurization wastewater, wastewater is first subjected to precipitation treatment, then is sent into atomization desulfurization component, is evenly atomized and released into device shell, in this process, with the natural heat energy contained in flue gas, sulfides in solution are effectively evaporated and solidified on the outer surface of flue gas coiled pipeline;To ensure the cleanliness and efficient heat transfer of the outer surface of flue gas coiled pipeline, a pair of cleaning roller reciprocates uninterruptedly and brushes the outer surface of flue gas coiled pipeline, effectively preventing the occurrence of sulfide caking phenomenon, thereby avoiding the problem of reduced heat transfer efficiency caused by too large caking;Through this series of automatic processing procedures, the device not only significantly improves the treatment efficiency of desulfurization wastewater, but also realizes the high automation and efficiency of the entire processing process, providing a new solution for the environmental protection treatment of desulfurization wastewater. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1The utility model discloses a power plant desulfurization wastewater treatment device's main view structural diagram.

[0016] Figure 2 The utility model discloses a power plant desulfurization wastewater treatment device's scrape clean kong structure diagram.

[0017] Figure 3 For Figure 1 The partial enlarged view of "A" in the middle.

[0018] In the drawing: 1, device shell, 2, pipeline retention block, 3, flue gas coiled pipeline, 4, scrape clean power bin, 5, scrape clean power motor, 6, scrape clean transmission rod, 7, rod circulation guide groove, 8, displacement cladding frame, 9, displacement guide shuttle, 10, auxiliary sliding sleeve, 11, guide auxiliary sliding rod, 12, water vapor discharge pipeline, 13, guide magnet, 14, transmission magnet, 15, link installation plate, 16, scrape clean kong, 17, spray chimney, 18, water mist transmission pipeline, 19, industrial atomizer, 20, infusion tube, 21, wastewater sedimentation tank body. DETAILED DESCRIPTION

[0019] Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor belong to the range of the utility model protection.

[0020] Through the personnel of the art, all electrical components in the case and its adaptation power are connected through the wire, and should be according to actual situation, select suitable controller and encoder, to meet the control demand, specific connection and control order, should refer to the working principle in the following, the working order of each electrical component is completed, and its detailed connecting means is the public known technology in the art, the following mainly introduces the working principle and process, and does not make the explanation of electrical control.

[0021] EMBODIMENT

[0022] The utility model will be specifically described below in combination with the drawings, such as Figures 1-3The utility model discloses a power plant desulfurization wastewater treatment device, including: device shell 1, a pair of pipeline retaining block 2 and flue gas coiled pipeline 3, a pair of pipeline retaining block 2 are installed on device shell 1 respectively, and a pair of pipeline retaining block 2 are sleeved on the outside of flue gas coiled pipeline 3, flue gas coiled pipeline 3 is installed in device shell 1, and reciprocating condensation cleaning structure is installed on device shell 1, and reciprocating condensation cleaning structure includes: scraping power bin 4, scraping power motor 5, scraping transmission rod 6, on-rod circulation guide groove 7, displacement cladding frame 8, displacement guide shuttle 9, auxiliary sliding sleeve 10, guide auxiliary sliding rod 11, water vapor discharge pipeline 12, guide magnet 13, transmission magnet 14, link installation plate 15 and a pair of scraping roller 16, scraping power bin 4 is installed on device shell 1, and scraping power motor 5 is installed in scraping power bin 4, and scraping power bin 4 is connected with scraping transmission rod 6, on-rod circulation guide groove 7 is set up on scraping transmission rod 6, and scraping transmission rod 6 is inserted on displacement cladding frame 8, displacement cladding frame 8 is installed on auxiliary sliding sleeve 10, and displacement cladding frame 8 is connected with guide magnet 13, and guide magnet 13 is opposite to transmission magnet 14, and displacement guide shuttle 9 is installed on displacement cladding frame 8 through pivot, and displacement guide shuttle 9 is inserted on on-rod circulation guide groove 7, auxiliary sliding sleeve 10 is sleeved on guide auxiliary sliding rod 11, and guide auxiliary sliding rod 11 is installed on device shell 1, and water vapor discharge pipeline 12 is inserted on device shell 1, and magnet displacement sliding slot is set up on device shell 1, and transmission magnet 14 is movably inserted on device shell 1 through magnet displacement sliding slot, and transmission magnet 14 is connected with link installation plate 15, and a pair of scraping roller 16 are installed on link installation plate 15 respectively, and atomizing desulfurization assembly is installed on device shell 1, and atomizing desulfurization assembly includes: a plurality of spray chimneys 17, water mist transmission pipeline 18, industrial atomizer 19, infusion tube 20 and wastewater sedimentation tank 21, a plurality of spray chimneys 17 are installed on device shell 1 respectively, and a plurality of spray chimneys 17 are connected with water mist transmission pipeline 18 respectively, industrial atomizer 19 is connected with water mist transmission pipeline 18, infusion tube 20 is connected with industrial atomizer 19, and wastewater sedimentation tank 21 is connected with infusion tube 20.

[0023] According to the drawings Figures 1-3It is concluded that the high-temperature flue gas generated by the generator set first flows into the flue gas coiled pipe 3 in the device housing 1 through the flue gas coiled pipe 3 at the pipe retaining block 2 on one side, and flows back into the desulfurization and denitrification tower from the other end. The high-temperature flue gas heats the flue gas coiled pipe 3, so that the surface of the flue gas coiled pipe 3 in the device housing 1 is in a high-temperature state. The desulfurization wastewater passes through the atomization desulfurization assembly and is sprayed into the device housing 1. After contacting the high-temperature flue gas coiled pipe 3, the desulfurization wastewater is rapidly evaporated. The water evaporates and is discharged from the water vapor discharge pipe 12. The sulfides in the desulfurization wastewater become solid and fall into the hot evaporation tank or adhere to the outer surface of the flue gas coiled pipe 3, thereby completing the rapid evaporation treatment of the desulfurization wastewater. While the desulfurization solidification is being performed, the cleaning power bin 4 in the cleaning power motor 5 rotates, thereby causing the cleaning transmission rod 6 to be rotated. At this time, the displacement guide shuttle 9 in the displacement covering frame 8 is limited and guided by the rod upper circulating guide groove 7 on the cleaning transmission rod 6, so that the displacement covering frame 8 reciprocates on the cleaning transmission rod 6 with the assistance of the auxiliary guide sliding rod 11 and the auxiliary sliding sleeve 10. The guide magnet 13 corresponds to the transmission magnet 14 below through the magnet, so that the connection mounting plate 15 and the pair of cleaning rollers 16 thereon are constantly brushed on the outer surface of the flue gas coiled pipe 3 in the device housing 1 through the brush on the cleaning roller 16, thereby preventing the agglomeration from being too large. After the sulfides are accumulated to a certain degree, they can be conveniently treated through the closable sulfide removal port provided on the device housing 1. The split type closing door provided on the device housing 1 can facilitate engineers to overhaul and maintain the flue gas coiled pipe 3 in the device housing 1. The desulfurization wastewater is precipitated in the wastewater precipitation tank body 21. The supernatant is input into the industrial atomizer 19 through the liquid delivery pipe 20. The supernatant is atomized and sprayed upward through the water mist delivery pipe 18 and the plurality of spray chimneys 17 connected thereto. After contacting the outer surface of the flue gas coiled pipe 3 in a high-temperature state, the supernatant is rapidly evaporated. The water vapor after evaporation is discharged from the water vapor discharge pipe 12. The sulfides in the desulfurization wastewater become solid and fall into the device housing 1 or adhere to the outer surface of the flue gas coiled pipe 3. In addition, there is a certain distance between the plurality of spray chimneys 17 and the flue gas coiled pipe 3 in the device housing 1, which avoids the problem of condensation slag caused by too high temperature difference and saves the trouble of cleaning and preventing blockage.

[0024] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A power plant desulfurization wastewater treatment apparatus comprising: The device shell, a pair of pipe retaining blocks and a flue gas coiled pipe, a pair of pipe retaining blocks are respectively installed on the device shell, and a pair of pipe retaining blocks are sleeved outside the flue gas coiled pipe, the flue gas coiled pipe is installed in the device shell, and a reciprocating condensation cleaning structure is installed on the device shell, characterized in that the reciprocating condensation cleaning structure comprises a cleaning power bin, a cleaning power motor, a cleaning transmission rod, a circulating guide groove on the rod, a displacement covering frame, a displacement guide shuttle, an auxiliary sliding sleeve, a guide auxiliary sliding rod, a water vapor discharge pipe, a guide magnet, a transmission magnet, a connecting installation plate and a pair of cleaning rollers. The cleaning power bin is installed on the device shell, the cleaning power motor is installed in the cleaning power bin, the cleaning power bin is connected with the cleaning transmission rod, the circulating guide groove on the rod is arranged on the cleaning transmission rod, the cleaning transmission rod is inserted into the displacement covering frame, the displacement covering frame is installed on the auxiliary sliding sleeve, the displacement covering frame is connected with the guide magnet, the guide magnet is opposite to the transmission magnet, the displacement guide shuttle is installed on the displacement covering frame through a rotating shaft, the displacement guide shuttle is inserted into the circulating guide groove on the rod, the auxiliary sliding sleeve is sleeved on the guide auxiliary sliding rod, the guide auxiliary sliding rod is installed on the device shell, the water vapor discharge pipe is inserted into the device shell, the device shell is provided with a magnet displacement sliding groove, the transmission magnet is movably inserted into the device shell through the magnet displacement sliding groove, the transmission magnet is connected with the connecting installation plate, a pair of cleaning rollers are respectively installed on the connecting installation plate, and an atomizing desulfurization assembly is installed on the device shell.

2. A power plant desulfurization wastewater treatment device according to claim 1, characterized in that, The atomizing desulfurization assembly comprises a plurality of spray chimneys, a water mist transmission pipe, an industrial atomizer, a liquid conveying pipe and a wastewater sedimentation tank. A plurality of spray chimneys are respectively installed on the device shell, and a plurality of spray chimneys are respectively connected with the water mist transmission pipe, the industrial atomizer is connected with the water mist transmission pipe, the liquid conveying pipe is connected with the industrial atomizer, and the wastewater sedimentation tank is connected with the liquid conveying pipe.

3. A power plant desulfurization wastewater treatment device according to claim 2, characterized in that, A maintenance access is arranged on the cleaning power bin.

4. A power plant desulfurization wastewater treatment device according to claim 3, characterized in that, A split type closing door is arranged on the device shell.

5. A power plant desulfurization wastewater treatment device according to claim 4, characterized in that, Brushes are arranged on the cleaning roller.

6. A power plant desulfurization wastewater treatment device according to claim 5, characterized in that, A closable sulfide removal port is arranged on the device shell.

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