CN115448404B - Low-temperature flue gas evaporation concentration treatment device for acidic wastewater - Google Patents
Low-temperature flue gas evaporation concentration treatment device for acidic wastewater Download PDFInfo
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- CN115448404B CN115448404B CN202211192419.2A CN202211192419A CN115448404B CN 115448404 B CN115448404 B CN 115448404B CN 202211192419 A CN202211192419 A CN 202211192419A CN 115448404 B CN115448404 B CN 115448404B
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/16—Treatment of water, waste water, or sewage by heating by distillation or evaporation using waste heat from other processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
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Abstract
The invention provides an acidic wastewater low-temperature flue gas evaporation concentration treatment device which comprises a tower body, wherein an access door is arranged on the outer wall of the bottom of the tower body, a demister, an upper spray pipe, an upper grid plate, a lower spray pipe, a lower grid plate, a filter plate and a cloth cover are sequentially arranged in the tower body at intervals from top to bottom, and a smoke outlet pipe is arranged at the top end of the tower body; the area between the lower grid plate and the filter plate is an air guide cavity, and an inclined downward flow guide baffle plate is arranged in the air guide cavity; the side of the tower body is provided with a 7-shaped liquid collecting groove, the inner top of the liquid collecting groove is communicated with the air guide cavity, and the inner bottom of the liquid collecting groove is a liquid storage cavity. The double-layer grid plate is added in the hollow tower, and the double-layer spray pipes are arranged, so that sufficient specific surface area can be provided for gas-liquid two-phase contact, strong mass transfer is formed, the absorption efficiency is high, gas distribution is uniform under the conditions of high spray density and large free cross section area, the gas-liquid contact is ensured to be uniform, and the local flow break condition can not occur.
Description
Technical Field
The invention relates to the technical field of acid wastewater treatment equipment, in particular to an acid wastewater low-temperature flue gas evaporation concentration treatment device.
Background
In the production of chemical products, the acidic wastewater is concentrated through low-temperature absolute dry flue gas, so that the energy consumption of an acidic wastewater treatment system can be reduced, and the treatment efficiency of the system can be improved;
the traditional evaporation tower works as follows: the low-temperature flue gas moves upwards in a dispersing way through the grid plate, meanwhile, the acidic wastewater is sprayed out in a dispersing way through the spray pipe, and the atomized and sprayed acidic wastewater is uniformly contacted with the dispersed flue gas, so that the moisture in the wastewater is evaporated, and the acid liquor is concentrated;
however, the current evaporation tower has limited concentration capability, and the concentrated liquid often does not reach the standard, and the reason is mainly as follows:
1. because the temperature of the flue gas is not high, at most two grid plates and a group of spray pipes are arranged in the existing evaporation tower, the contact times of wastewater and the flue gas are at most two stages, the heat exchange efficiency of liquid after the secondary concentration is limited, and the liquid often does not reach the standard;
2. because the particle impurities in the flue gas are excessive, the grid plate is easy to block, the flow is reduced, the amount of the upward floating and dispersing flue gas is reduced, and the heat exchange efficiency of the flue gas and the liquid is further reduced;
in summary, there is a need for an evaporative concentration device that is efficient in concentration and filters flue gases.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the low-temperature flue gas evaporation and concentration treatment device for the acid wastewater, and solves the problems in the background art.
In order to achieve the above purpose, the invention is realized by the following technical scheme:
the low-temperature flue gas evaporation concentration treatment device for the acid wastewater comprises a tower body, wherein an access door is arranged on the outer wall of the bottom of the tower body, a foam remover, an upper spray pipe, an upper grid plate, a lower spray pipe, a lower grid plate, a filter plate and a cloth cover are sequentially arranged in the tower body from top to bottom at intervals, a smoke outlet pipe is arranged at the top end of the tower body, a smoke inlet pipe is arranged on the side wall of the tower body, and the smoke inlet pipe is positioned at the bottom of the cloth cover; the area between the lower grid plate and the filter plate is an air guide cavity, and an inclined downward flow guide baffle plate is arranged in the air guide cavity;
the side of the tower body is provided with a 7-shaped liquid collecting tank, the top of the inside of the liquid collecting tank is communicated with the air guide cavity, the bottom of the inside of the liquid collecting tank is provided with a liquid storage cavity, the flow guide baffle plate extends obliquely to the upper part of the liquid storage cavity, the bottom of the liquid collecting tank is vertically communicated with the liquid outlet pipe, the area between the bottom of the flow guide baffle plate and the filter plate is provided with a first air guide channel, the area between the top of the flow guide baffle plate and the lower grid plate is provided with a second air guide channel, and the first air guide channel and the second air guide channel are of U-shaped structures;
the atomized acid liquor contacts with the flue gas which is scattered and floats upwards by the upper grid plate to be concentrated for the first time;
the atomized acid liquid contacts with the flue gas which is scattered and floated by the lower grid plate to carry out secondary concentration;
the acid liquid flowing downwards along the guide baffle contacts with the smoke in the second air guide channel for three times of concentration.
Further, an acid liquor concentration sensor is arranged outside the liquid outlet pipe, a liquid extracting pump is arranged at the top of the liquid collecting tank, an inlet of the liquid extracting pump is communicated to the liquid storage cavity through the liquid extracting pipe, an outlet of the liquid extracting pump is connected to the liquid inlet pipe in parallel through the liquid outlet pipe, and an outlet of the liquid inlet pipe is communicated to the upper spray pipe;
the acid liquid concentration sensor is used for detecting the acid liquid concentration of the liquid storage tank, and when the acid liquid concentration is too high, the liquid extracting pump extracts the acid liquid to the upper spray pipe for four times of concentration.
Furthermore, the outer edge of the cloth cover is embedded into the fixed ring frame, slots are symmetrically formed in the outer wall of the fixed ring frame, the studs penetrate through the tower body from outside to inside, and the inner end of the stud is screwed into the slots; the top surface of the fixed ring frame is connected with a lifting component, and the lifting component is used for driving the fixed ring frame to move up and down.
Further, the fixed ring frame is characterized in that a fixed ring groove is formed in the inner wall of the fixed ring frame, connecting rings which are vertically arranged are distributed on the outer edge annular array of the cloth cover, a plurality of storage holes are formed in the inner extension of the fixed ring groove, each storage hole corresponds to one connecting ring, and a retaining ring assembly is arranged in the storage hole and connected with the connecting rings in a buckling mode.
Further, the buckle assembly includes bracing piece, buckle, and the one end of bracing piece is fixed in perpendicularly and accomodates downthehole, the other end is equipped with the sleeve pipe, and the sleeve pipe is quarter circular arc tubular structure, and the buckle level sets up, and the buckle slides and runs through the sleeve pipe, and the buckle has the open end and the articulated end of relative setting, and the vertical adjusting column that installs of top surface of fixed ring frame is used for driving the buckle and rotates, under the cloth cover installed state: the open end is arranged in the sleeve, and the hinged end is arranged in the connecting ring; under the cloth cover disassembly state: the open end is arranged in the connecting ring, and the hinged end is arranged in the sleeve.
Further, the sectional area of the cloth cover is larger than the inner sectional area of the fixed ring frame, and the cloth cover is arranged in a loose and sagging state; the supporting rod is of a horizontal elastic telescopic structure, and the adjusting column is of a vertical elastic telescopic structure.
Further, a guide frame is arranged at the center of the bottom surface of the filter plate, a guide rod is vertically arranged at the outer edge of the bottom surface of the filter plate, and the guide rod penetrates through the fixed ring frame in a sliding manner; the hoisting assembly comprises a traction motor, a winding wheel, a first traction rope and a second traction rope; the traction motor is arranged on the tower body, the output end of the traction motor is connected with the winding wheel, the outer wall of the winding wheel is wound with a first traction rope, the first traction rope penetrates through the tower body and the guide frame, the outer end of the first traction rope is connected with a plurality of second traction ropes, and the bottom ends of the second traction ropes are buckled in an annular mode and are connected with the surface of the fixed ring frame.
Further, a concentrated solution cleaning assembly is arranged on the surface of the flow guide partition plate, and comprises a floating scraping plate, a cleaning traction assembly and a resetting traction assembly; the top of water conservancy diversion baffle is located in vertical slip of floating scraper blade, and clearance traction assembly is connected to one side of floating scraper blade, and traction assembly resets is connected to another side, and the top of floating scraper blade is laminated with the bottom surface of grid tray down all the time, and the bottom is laminated with the surface of water conservancy diversion baffle all the time, and floating scraper blade is used for the concentrated impurity of grid tray bottom surface, water conservancy diversion baffle surface under the synchronous clearance.
The invention provides an acidic wastewater low-temperature flue gas evaporation concentration treatment device. Compared with the prior art, the method has the following beneficial effects:
1. the double-layer grid plate is added in the hollow tower, and the double-layer spray pipe is arranged, so that sufficient specific surface area can be provided for gas-liquid two-phase contact, strong mass transfer is formed, the absorption efficiency is high, gas distribution is uniform under the conditions of high spray density and large free cross section area, the gas-liquid contact is ensured to be uniform, and the condition of local flow interruption cannot occur;
2. a filter plate and a cloth cover are arranged at the inlet of the flue gas, the cloth cover can be used for efficiently filtering the flue gas, and the filter plate can be used for filtering the flue gas for the second time;
3. in order to prevent concentrated liquid from directly falling onto the filter plate and the cloth cover and facilitate subsequent output and cleaning of the concentrated liquid, the embodiment adopts a staggered design mode of the tower body and the 7-shaped liquid collecting tank, so that the air supply structure is separated from the liquid storage structure, the middle separation is carried out by arranging the guide baffle plates to form a U-shaped air guide structure, the concentrated liquid output by the upper layer of grid plates and the lower layer of grid plates is dripped onto the guide baffle plates, and then the concentrated liquid is output into the liquid storage cavity along the guide baffle plates; meanwhile, the concentrated solution output along the flow guide partition plate can be contacted with the smoke just input by the second air guide channel, so that the concentration for three times is realized, and the acid liquor treatment effect of the evaporation tower is improved.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 shows a schematic diagram of a low-temperature flue gas evaporation concentration treatment device for acidic wastewater;
FIG. 2 shows a schematic view of the connection structure of the lifting assembly and the cloth cover of the invention;
FIG. 3 shows an enlarged schematic view of the structure at A of FIG. 2;
FIG. 4 shows a schematic cross-sectional structure of a retaining ring frame of the present invention;
FIG. 5 shows a schematic representation of the structure of the adjusting column of the present invention;
FIG. 6 shows a schematic view of the connection structure among the sleeve, the snap ring and the connecting ring according to the invention;
FIG. 7 shows a schematic view of the baffle layout structure of the present invention;
FIG. 8 shows a schematic diagram of a concentrate cleaning assembly of the present invention;
the figure shows: 1. a tower body; 11. a smoke inlet pipe; 12. a baffle plate; 13. a lower grid plate; 14. a lower spray pipe; 15. an upper grid plate; 16. a spray pipe is arranged; 161. a liquid inlet pipe; 17. a demister; 18. a smoke outlet pipe; 19. an access door; 2. a cloth cover; 21. a connecting frame; 211. a connecting ring; 3. a filter plate; 31. a guide rod; 32. a guide frame; 4. a liquid collecting tank; 41. a first air guide channel; 42. the second air guide channel; 421. a guide plate; 43. a liquid storage cavity; 44. a liquid outlet pipe; 5. a liquid pump; 51. a liquid suction pipe; 52. a liquid outlet pipe; 6. a lifting assembly; 61. a traction motor; 62. a winding wheel; 63. a first traction rope; 64. a second traction rope; 7. fixing the ring frame; 71. a slot; 72. a vertical hole; 73. a receiving hole; 74. a fixed ring groove; 75. a stud; 76. an adjusting column; 77. a support rod; 771. a sleeve; 78. a clasp ring; 781. a center column; 8. a concentrate cleaning assembly; 81. a floating scraper; 811. a lower scraping box; 8111. a slide block; 812. an upper scraping plate; 82. a third traction rope; 83. a fourth traction rope; 84. cleaning a traction roller; 85. resetting the traction roller; 86. and a guide rail.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention are clearly and completely described, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
In order to solve the technical problems in the background technology, the following acid wastewater low-temperature flue gas evaporation and concentration treatment device is provided:
referring to fig. 1, the low-temperature flue gas evaporation and concentration treatment device for acidic wastewater provided by the invention comprises a tower body 1, wherein an access door 19 is arranged on the outer wall of the bottom of the tower body 1, a demister 17, an upper spray pipe 16, an upper grid plate 15, a lower spray pipe 14, a lower grid plate 13, a filter plate 3 and a cloth cover 2 are sequentially arranged in the tower body 1 at intervals from top to bottom, a smoke outlet pipe 18 is arranged at the top end of the tower body 1, a smoke inlet pipe 11 is arranged on the side wall of the tower body 1, and the smoke inlet pipe 11 is positioned at the bottom of the cloth cover 2; the area between the lower grid plate 13 and the filter plate 3 is an air guide cavity, and an inclined downward flow guide partition plate 12 is arranged in the air guide cavity; the side of the tower body 1 is provided with a 7-shaped liquid collecting tank 4, the top of the inside of the liquid collecting tank 4 is communicated with an air guide cavity, the bottom of the inside of the liquid collecting tank 4 is a liquid storage cavity 43, a flow guide baffle 12 extends obliquely above the liquid storage cavity 43, the bottom of the liquid collecting tank 4 is vertically communicated with a liquid outlet pipe 44, the area between the bottom of the flow guide baffle 12 and the filter plate 3 is a first air guide channel 41, the area between the top of the flow guide baffle 12 and the lower grid plate 13 is a second air guide channel 42, and the first air guide channel 41 and the second air guide channel 42 are of U-shaped structures; the atomized acid liquor contacts with the dispersed and floated smoke of the upper grid plate 15 for concentration for the first time; the atomized acid liquor contacts with the dispersed and floated smoke of the lower grid plate 13 for secondary concentration; the acid flowing downward along the baffle 12 is concentrated three times by contacting with the flue gas in the second air guide channel 42.
The double-layer grid plate is added in the hollow tower, and the double-layer spray pipe is arranged, so that sufficient specific surface area can be provided for gas-liquid two-phase contact, strong mass transfer is formed, the absorption efficiency is high, gas distribution is uniform under the conditions of high spray density and large free cross section area, the gas-liquid contact is ensured to be uniform, and the condition of local flow interruption cannot occur;
a filter plate 3 and a cloth cover 2 are arranged at the inlet of the flue gas, the cloth cover 2 can be used for efficiently filtering the flue gas, and the filter plate 3 can be used for filtering the flue gas for the second time;
in order to prevent concentrated liquid from directly falling onto the filter plate 3 and the cloth cover 2, and influence the filtering effect of the filter plate 3 and the cloth cover 2, and facilitate the subsequent output and cleaning of the concentrated liquid, in this embodiment, the air supply structure and the liquid storage structure are separated by adopting a dislocation design mode of the tower body 1 and the 7-shaped liquid collecting tank 4, and a U-shaped air guide structure is formed by arranging the guide partition 12 for middle blocking, so that the concentrated liquid output by the upper grid 15 and the lower grid 13 drops onto the guide partition 12, and then the concentrated liquid is output into the liquid storage cavity 43 along the guide partition 12; meanwhile, the concentrated solution output along the flow guide partition plate 12 can be contacted with the smoke just input by the second air guide channel 42, so that the concentration is realized for three times, and the acid liquor treatment effect of the evaporation tower is improved.
As an improvement of the above technical solution, an acid solution concentration sensor is installed outside the liquid outlet pipe 44, a liquid pump 5 is installed at the top of the liquid collecting tank 4, an inlet of the liquid pump 5 is communicated to the liquid storage cavity 43 through a liquid pump pipe 51, an outlet of the liquid pump 5 is connected in parallel to a liquid inlet pipe 161 through a liquid return pipe 52, and an outlet of the liquid inlet pipe 161 is communicated to the upper spray pipe 16;
the acid liquid concentration sensor is used for detecting the acid liquid concentration of the liquid storage tank, and when the acid liquid concentration is too high, the liquid extracting pump 5 extracts the acid liquid to the upper spray pipe 16 for four times of concentration, so that the treatment effect of the corresponding acid liquid is further improved.
Example two
After the cloth cover 2 is used for a period of time, excessive dust and impurities are accumulated on the cloth cover 2, so that the smoke flow is prevented from being influenced, disassembly and cleaning are needed, the cloth cover 2 is convenient for workers to clean and replace, and the following is provided on the basis of the embodiment:
as shown in fig. 1-2, the outer edge of the cloth cover 2 is embedded into the fixed ring frame 7, slots 71 are symmetrically formed on the outer wall of the fixed ring frame 7, studs 75 penetrate through the tower body 1 from outside to inside, and the inner end of the studs 75 is screwed into the slots 71; the top surface of the fixed ring frame 7 is connected with a lifting component 6, and the lifting component 6 is used for driving the fixed ring frame 7 to move up and down.
The fixed ring frame 7 can clamp and position the cloth cover 2, the lifting component 6 can drive the fixed ring frame 7 and the cloth cover 2 to move upwards, and when the fixed ring frame moves to a designated position, the fixed ring frame 7 can be positioned by screwing the stud 75; when the cloth cover 2 needs to be cleaned and replaced, the lifting assembly 6 is rotated, so that the fixed ring frame 7 and the cloth cover 2 move downwards to the access door 19, and then a worker can open the access door 19 to clean the cloth cover 2.
As shown in fig. 3 and fig. 4, the inner wall of the fixed ring frame 7 is provided with a fixed ring groove 74, the outer edge of the cloth cover 2 is annularly arranged with vertically arranged connecting rings 21, the fixed ring groove 74 is internally provided with a plurality of receiving holes 73 in an extending manner, each receiving hole 73 corresponds to one connecting ring 21, a retaining ring 78 assembly is arranged in each receiving hole 73, and the retaining ring 78 assembly is buckled and connected with the connecting ring 21; the buckle 78 subassembly includes bracing piece 77, buckle 78, and the one end of bracing piece 77 is fixed in perpendicularly and accomodates in the hole 73, and the other end is equipped with sleeve pipe 771, and sleeve pipe 771 is quarter circular arc tubular structure, and buckle 78 level sets up, and buckle 78 slides and runs through sleeve pipe 771, and buckle 78 has relative open end and the articulated end that sets up, and adjusting column 76 is vertically installed to the top surface of fixed ring frame 7, and adjusting column 76 is used for driving buckle 78 and rotates, under the cloth cover 2 installation status: the open end is placed in the sleeve 771, and the hinged end is placed in the connecting ring 21; the cloth cover 2 is disassembled: the open end is placed in the connecting ring 21, and the hinged end is placed in the sleeve 771;
a retaining ring 78 is reserved in the fixed ring frame 7 and is used for being buckled and connected with the connecting ring 21 of the cloth cover 2, so that when the cloth cover is assembled, a worker pushes the connecting ring 21 inwards, the connecting ring 21 passes through the opening end of the retaining ring 78 and is clamped into the connecting ring 21, the assembly and the positioning are realized, and when the cloth cover is required to be disassembled, the worker pulls the connecting ring 21 outwards forcibly;
in order to support the connecting ring 21 so that the retaining ring 78 is kept in a horizontal state, the retaining ring 78 is supported by designing a support rod 77 and a sleeve 771, so that the connection stability is ensured;
when the flue gas blows upwards, the cloth cover 2 can be subjected to upward thrust, in order to prevent the connecting ring 21 from being stressed to be separated from the retaining ring 78, the retaining ring 78 can be driven to rotate by adopting the adjusting column 76, so that when the cloth cover 2 is used, the open end can be rotationally embedded into the sleeve 771, and the connecting ring 21 directly pulls the hinged end, so that the open end has an opening trend, but the open end can be restrained and positioned by the sleeve 771, so that the open end cannot be opened, the retaining ring 78 is separated from the sleeve 771, and the connecting ring 21 cannot be separated from the retaining ring 78; when the cloth cover 2 needs to be removed, the adjusting column 76 can be rotated to enable the open end to be placed in the connecting ring 21, so that a worker can pull the cloth cover 2 forcefully; the two modes are switched simply and conveniently, so that the connection strength among the sleeve 771, the retaining ring 78 and the connecting ring 21 can be ensured during use, and the disassembly is simple and convenient.
As shown in fig. 4-6, the cross-sectional area of the cloth cover 2 is larger than the inner cross-sectional area of the fixed ring frame 7, and the cloth cover 2 is arranged in a loose and sagging state; the supporting rod 77 is of a horizontal elastic telescopic structure, and the adjusting column 76 is of a vertical elastic telescopic structure;
in order to increase the filtering area of the cloth cover 2 in a limited area, the reserved area of the cloth cover 2 is designed to be larger; meanwhile, as the inner stroke of the tower body 1 is longer, in order to enable the smoke to normally flow out from the top end, the wind force of the smoke is larger, and if the cloth cover 2 and the retaining ring 78 are directly connected in a hard mode, the cloth cover 2 moves upwards under large wind force, the connecting ring 21 can be pulled, and the joint of the connecting ring 21 and the cloth cover 2 is easy to tear; the support rods 77 with the horizontal elastic telescopic structure can realize flexible connection, so that the tensile force can be overcome; because the retaining ring 78 needs to float horizontally, the adjusting column 76 cannot be fixedly connected with the retaining ring 78, and the adjusting column 76 adopting the vertical elastic telescopic structure can be pushed down to enable the adjusting column 76 to be inserted into the central column 781 at the center of the retaining ring 78 when the cloth cover 2 is disassembled, so that rotation adjustment is realized.
As shown in fig. 1 and 2, a guide frame 32 is arranged at the center of the bottom surface of the filter plate 3, a guide rod 31 is vertically arranged at the outer edge of the bottom surface of the filter plate 3, and a vertical hole 72 is formed in the guide rod 31 in a sliding manner penetrating through the fixed ring frame 7; the hoisting assembly 6 comprises a traction motor 61, a winding wheel 62, a first traction rope 63 and a second traction rope 64; the tower body 1 is located to traction motor 61, and winding wheel 62 is connected to traction motor 61's output, and the outer wall winding of winding wheel 62 has first haulage rope 63, and first haulage rope 63 runs through tower body 1, leading truck 32, and the outer end of first haulage rope 63 is connected with a plurality of second haulage ropes 64, and the bottom of a plurality of second haulage ropes 64 is the surface of annular lock connection solid fixed ring frame 7.
The guide rod 31 can restrict and guide the fixed ring frame 7 which moves vertically, so that the fixed ring frame 7 can accurately enter a designated position; the traditional cloth cover 2 is replaced and cleaned in a manner that a worker needs to climb to the top to finish, and the fixed ring frame 7 can be driven to move up and down through the traction motor 61, the first traction rope 63 and the second traction rope 64, so that the cloth cover 2 is convenient and efficient to detach and replace, and the worker can directly operate at the access door 19 without climbing operation.
Example III
After the baffle plate 12 and the lower grid plate 13 are used for a period of time, a plurality of liquid impurities can be gathered on the surfaces, and the following structural design is provided for cleaning the impurities:
as shown in fig. 7 and 8, the surface of the baffle 12 is provided with a concentrated solution cleaning assembly 8, and the concentrated solution cleaning assembly 8 comprises a floating scraping plate 81, a cleaning traction assembly and a resetting traction assembly; the top of baffle 12 is located in vertical slip of floating scraper blade 81, and clearance traction assembly is connected to one side of floating scraper blade 81, and reset traction assembly is connected to the other side, and the top of floating scraper blade 81 is laminated with the bottom surface of grid tray 13 all the time, and the bottom is laminated with the surface of baffle 12 all the time, and floating scraper blade 81 is used for the concentrated impurity of synchronous clearance grid tray 13 bottom surface, baffle 12 surface down.
The floating scraping plate 81 can be driven to move along the guide baffle 12 through the cleaning traction assembly and the reset traction assembly, so that the lower grid plate 13 and the guide baffle 12 are cleaned synchronously, the cleaning efficiency is high, and impurities in cleaning are directly discharged into the liquid storage cavity 43, so that the impurities can be directly extracted subsequently.
The floating scraper 81 comprises a lower scraper box 811 and an upper scraper 812, a spring is embedded in the lower scraper box 811, the bottom of the upper scraper 812 is embedded in the lower scraper box 811 in a sliding manner, the top end of the upper scraper 812 is in a blade shape, the top end of the upper scraper 812 is attached to the lower grid plate 13, the bottom end of the lower scraper box 811 is in a blade shape, and the lower scraper box 811 is attached to the flow guide baffle 12; while the floating scraper 81 moves, the compressed springs are reset gradually, so that the upper scraper 812 and the lower scraper 811 are driven to be opened gradually, and the upper scraper 812 and the lower scraper 811 are ensured to be attached to the guide baffle 12 and the lower grid plate 13;
the cleaning traction assembly comprises a third traction rope 82 and a cleaning traction roller 84, and the resetting traction assembly comprises a fourth traction rope 83 and a resetting traction roller 85;
the both sides face of scraping box 811 down is equipped with slider 8111, slider 8111 slides and imbeds in guide rail 86, slider 8111 is located to downward guide rail 86 of slope, slider 8111 is connected to one end of third haulage rope 82, the other end runs through guide rail 86, water conservancy diversion baffle 12, tower 1 in proper order, the other end of third haulage rope 82 winds in clearance pull roll 84 outer wall, guide rail 86 is run through to one end of fourth haulage rope 83, tower 1 and tip winding are on reset pull roll 85, slider 8111 is connected to the other end of fourth haulage rope 83, the motor is all connected to the tip of clearance pull roll 84, reset pull roll 85.
The working principle and the using flow of the invention are as follows:
when the flue gas is concentrated:
the oven-dried flue gas enters the lower part of the cloth cover 2 through the flue gas inlet pipe 11, then the flue gas blows the cloth cover 2 and is filtered by the cloth cover 2, and when the cloth cover 2 is supported, the cloth cover 2 drives the connecting ring 21 and the retaining ring 78 to move outwards, so that the supporting rod 77 is lengthened;
then the flue gas passes through the filter plate 3, then passes through the lower grid plate 13 in a dispersing way through the first air guide channel 41 and the second air guide channel 42, the acid liquor sprayed by the upper spray pipe 16 is contacted with the flue gas, then the flue gas continuously floats upwards and passes through the upper grid plate 15 in a dispersing way, the acid liquor sprayed by the upper spray pipe 16 is contacted with the flue gas, and finally the flue gas is discharged from the flue gas outlet pipe 18;
the evaporated and concentrated liquid is discharged along the guide baffle plate 12, and the concentrated acid liquid is accumulated in the liquid storage cavity 43;
when cleaning operation,:
the studs 75 are unscrewed, the first traction rope 63 and the second traction rope 64 below the traction motor 61, the fixed ring frame 7 moves downwards to the access door 19 along the guide rod 31, then a worker opens the access door 19 and rotates the adjusting posts 76, so that the open ends of the retaining rings 78 rotate to the connecting rings 21 to pull out the cloth cover 2, and the cloth cover 2 is convenient to take off for replacement; turning the adjustment post 76 again to rotate the open end of the clasp 78 into the sleeve 771;
the traction motor 61 drives the fixed ring frame 7 to lift up to the filtering position, and the stud 75 is screwed on;
the reset traction roller 85 works, and the third traction rope 82 drives the floating scraping plate 81 to move, so that the lower grid plate 13 and the flow guide partition plate 12 are cleaned synchronously, and the concentrated solution is discharged to the liquid storage cavity 43.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (3)
1. Acid waste water low temperature flue gas evaporation concentration processing apparatus, its characterized in that: the novel tower comprises a tower body, wherein an access door is arranged on the outer wall of the bottom of the tower body, a foam remover, an upper spray pipe, an upper grid plate, a lower spray pipe, a lower grid plate, a filter plate and a cloth cover are sequentially arranged in the tower body from top to bottom at intervals, a smoke outlet pipe is arranged at the top end of the tower body, a smoke inlet pipe is arranged on the side wall of the tower body, and the smoke inlet pipe is positioned at the bottom of the cloth cover; the area between the lower grid plate and the filter plate is an air guide cavity, and an inclined downward flow guide baffle plate is arranged in the air guide cavity;
the side of the tower body is provided with a 7-shaped liquid collecting tank, the top of the inside of the liquid collecting tank is communicated with the air guide cavity, the bottom of the inside of the liquid collecting tank is provided with a liquid storage cavity, the flow guide baffle plate extends obliquely to the upper part of the liquid storage cavity, the bottom of the liquid collecting tank is vertically communicated with the liquid outlet pipe, the area between the bottom of the flow guide baffle plate and the filter plate is provided with a first air guide channel, the area between the top of the flow guide baffle plate and the lower grid plate is provided with a second air guide channel, and the first air guide channel and the second air guide channel are of U-shaped structures;
the atomized acid liquor contacts with the flue gas which is scattered and floats upwards by the upper grid plate to be concentrated for the first time;
the atomized acid liquid contacts with the flue gas which is scattered and floated by the lower grid plate to carry out secondary concentration;
the acid liquid flowing downwards along the guide baffle contacts with the smoke in the second air guide channel to be concentrated for three times;
the outer edge of the cloth cover is embedded into the fixed ring frame, slots are symmetrically formed in the outer wall of the fixed ring frame, the studs penetrate through the tower body from outside to inside, and the inner end of the stud is screwed into the slots; the top surface of the fixed ring frame is connected with a lifting assembly, and the lifting assembly is used for driving the fixed ring frame to move up and down;
the inner wall of the fixed ring frame is provided with a fixed ring groove, the outer edge of the cloth cover is annularly provided with connecting rings which are vertically arranged in an array, the fixed ring groove is internally provided with a plurality of storage holes in an extending mode, each storage hole corresponds to one connecting ring, the inside of each storage hole is provided with a buckle ring assembly, and the buckle ring assembly is in buckling connection with the connecting ring;
an acid liquor concentration sensor is arranged outside the liquid outlet pipe, a liquid extracting pump is arranged at the top of the liquid collecting tank, an inlet of the liquid extracting pump is communicated to the liquid storage cavity through the liquid extracting pipe, an outlet of the liquid extracting pump is connected to the liquid inlet pipe in parallel through the liquid outlet pipe, and an outlet of the liquid inlet pipe is communicated to the upper spray pipe;
the acid liquid concentration sensor is used for detecting the acid liquid concentration of the liquid storage tank, and when the acid liquid concentration is too high, the liquid extracting pump extracts the acid liquid to the upper spray pipe for four times of concentration;
the buckle assembly comprises a supporting rod and a buckle, wherein one end of the supporting rod is vertically fixed in a storage hole, the other end of the supporting rod is provided with a sleeve, the sleeve is of a quarter circular arc tubular structure, the buckle is horizontally arranged, the buckle slides through the sleeve, the buckle is provided with an opening end and a hinged end which are oppositely arranged, the top surface of a fixed ring frame is vertically provided with an adjusting column, the adjusting column is used for driving the buckle to rotate, and the cloth cover is arranged in a state that: the open end is arranged in the sleeve, and the hinged end is arranged in the connecting ring; under the cloth cover disassembly state: the open end is arranged in the connecting ring, and the hinged end is arranged in the sleeve;
the sectional area of the cloth cover is larger than the inner sectional area of the fixed ring frame, and the cloth cover is arranged in a loose sagging state; the supporting rod is of a horizontal elastic telescopic structure, and the adjusting column is of a vertical elastic telescopic structure.
2. The acidic wastewater low-temperature flue gas evaporation and concentration treatment device according to claim 1, wherein: a guide frame is arranged at the center of the bottom surface of the filter plate, a guide rod is vertically arranged at the outer edge of the bottom surface of the filter plate, and the guide rod penetrates through the fixed ring frame in a sliding manner; the hoisting assembly comprises a traction motor, a winding wheel, a first traction rope and a second traction rope; the traction motor is arranged on the tower body, the output end of the traction motor is connected with the winding wheel, the outer wall of the winding wheel is wound with a first traction rope, the first traction rope penetrates through the tower body and the guide frame, the outer end of the first traction rope is connected with a plurality of second traction ropes, and the bottom ends of the second traction ropes are buckled in an annular mode and are connected with the surface of the fixed ring frame.
3. The acidic wastewater low-temperature flue gas evaporation and concentration treatment device according to claim 1, wherein: the surface of the flow guide partition plate is provided with a concentrated solution cleaning assembly, and the concentrated solution cleaning assembly comprises a floating scraping plate, a cleaning traction assembly and a resetting traction assembly; the top of water conservancy diversion baffle is located in vertical slip of floating scraper blade, and clearance traction assembly is connected to one side of floating scraper blade, and traction assembly resets is connected to another side, and the top of floating scraper blade is laminated with the bottom surface of grid tray down all the time, and the bottom is laminated with the surface of water conservancy diversion baffle all the time, and floating scraper blade is used for the concentrated impurity of grid tray bottom surface, water conservancy diversion baffle surface under the synchronous clearance.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211192419.2A CN115448404B (en) | 2022-09-28 | 2022-09-28 | Low-temperature flue gas evaporation concentration treatment device for acidic wastewater |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211192419.2A CN115448404B (en) | 2022-09-28 | 2022-09-28 | Low-temperature flue gas evaporation concentration treatment device for acidic wastewater |
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| CN115448404A CN115448404A (en) | 2022-12-09 |
| CN115448404B true CN115448404B (en) | 2023-10-20 |
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Citations (6)
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|---|---|---|---|---|
| US2161110A (en) * | 1935-05-16 | 1939-06-06 | Babcock & Wilcox Co | Method of and apparatus for burning waste liquor |
| CN206881364U (en) * | 2017-07-05 | 2018-01-16 | 河北慧之源科技服务有限公司 | Circulating absorption tower and integrated fume processing unit |
| CN107694311A (en) * | 2017-09-26 | 2018-02-16 | 华北理工大学 | It is a kind of to be used for the purifier containing sour gas |
| CN207581397U (en) * | 2017-08-25 | 2018-07-06 | 金川集团股份有限公司 | A kind of acid waste water concentrates adiabatic evaporation tower |
| CN111138016A (en) * | 2019-12-31 | 2020-05-12 | 江苏利保科技股份有限公司 | Zero-emission low-energy-consumption concentration tower |
| CN212881832U (en) * | 2020-06-24 | 2021-04-06 | 威海蓝创环保设备有限公司 | Spray tower convenient to retrieve waste liquid and circulation sprays |
-
2022
- 2022-09-28 CN CN202211192419.2A patent/CN115448404B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2161110A (en) * | 1935-05-16 | 1939-06-06 | Babcock & Wilcox Co | Method of and apparatus for burning waste liquor |
| CN206881364U (en) * | 2017-07-05 | 2018-01-16 | 河北慧之源科技服务有限公司 | Circulating absorption tower and integrated fume processing unit |
| CN207581397U (en) * | 2017-08-25 | 2018-07-06 | 金川集团股份有限公司 | A kind of acid waste water concentrates adiabatic evaporation tower |
| CN107694311A (en) * | 2017-09-26 | 2018-02-16 | 华北理工大学 | It is a kind of to be used for the purifier containing sour gas |
| CN111138016A (en) * | 2019-12-31 | 2020-05-12 | 江苏利保科技股份有限公司 | Zero-emission low-energy-consumption concentration tower |
| CN212881832U (en) * | 2020-06-24 | 2021-04-06 | 威海蓝创环保设备有限公司 | Spray tower convenient to retrieve waste liquid and circulation sprays |
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| Publication number | Publication date |
|---|---|
| CN115448404A (en) | 2022-12-09 |
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