Lead smelting tail gas treatment equipment and method

Abstract

The present invention relates to the technical field of waste gas treatment, and discloses a lead smelting tail gas treatment device, comprising: a cooling mechanism, a reflux mechanism is arranged on the top of the cooling mechanism, a mixing and wetting mechanism is arranged between the cooling mechanism and the reflux mechanism, a particle interception mechanism is installed inside the cooling mechanism, and a filling mechanism is arranged inside the bottom of the particle interception mechanism. The lead smelting tail gas treatment device and method can wet and settle the tail gas by using steam through the mixing and wetting mechanism in conjunction with an external steam generator during use, and intercept the solid particles attached to the inner wall of the filter pad cylinder through the rotating particle interception mechanism, filter out the solid particles in the tail gas, ensure that many solid particles will not be attached when the waste liquid is cleaned, facilitate the waste liquid cleaning, avoid the solid particles from being deposited in the subsequent pipeline, avoid the pipeline from being easily blocked, and facilitate the subsequent reaction of the gas-liquid mixture.

Description

Technical Field

[0001] The present invention relates to the technical field of waste gas treatment, and in particular to a lead smelting tail gas treatment device and method. Background Art

[0002] There are two methods for smelting lead: pyrometallurgy and hydrometallurgy. Currently, pyrometallurgy is the main method in the world. Pyrometallurgy basically adopts sintering roasting - blast furnace smelting process, accounting for 85-90% of the total lead production. The second is reaction smelting method, and its equipment can be hearth furnace, short kiln, electric furnace or vortex furnace. Precipitation smelting is rarely used. Lead refining mainly adopts pyrometallurgy, followed by electrolytic refining. For the difficult-to-sort lead-zinc sulfide mixed concentrate, a closed blast furnace smelting method that produces lead and zinc at the same time is generally used.

[0003] During lead smelting, a lot of exhaust gas is usually produced. These gases contain many smoke particles and toxic gases, which need to be treated. Generally, the lead exhaust gas is directly introduced into the treatment device for chemical reaction treatment using solvents. In this method, solid particles and harmful gases are not separated during treatment, so that many insoluble solid particles are also brought into the solvent, so that solid particles are mixed in the gas-liquid mixture, which has a certain impact on the subsequent waste liquid cleaning and is prone to cause pipeline blockage. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a lead smelting tail gas treatment device and method, which solves the problems mentioned in the above background.

[0005] The present invention provides the following technical solution: a lead smelting tail gas treatment device, comprising: a cooling mechanism, a reflux mechanism is arranged on the top of the cooling mechanism, a mixing and wetting mechanism is arranged between the cooling mechanism and the reflux mechanism, a particle interception mechanism is installed inside the cooling mechanism, and a filling mechanism is arranged inside the bottom of the particle interception mechanism.

[0006] Preferably, the cooling mechanism includes an upper frame shell, a heat-conducting shell, a lower frame shell, a cooling ring, a spiral cooling channel, an upper support ring, a first sliding sealing ring and an air-liquid discharge external interface, the heat-conducting shell is fixedly connected between the upper frame shell and the lower frame shell, the cooling ring is fixedly sleeved on the surface of the heat-conducting shell, the spiral cooling channel passes through the interior of the cooling ring, and water pipe joints are provided at both ends of the spiral cooling channel, the upper support ring is fixedly connected to the inner wall of the lower frame shell, the first sliding sealing ring is fixedly connected to the inner wall of the upper support ring, and the air-liquid discharge external interface is arranged on the surface of the lower frame shell.

[0007] Preferably, the cooling mechanism also includes a cover shell, a lower support ring, a second sliding seal ring, a sealing strip, a flip cover and an electromagnetic lock, the cover shell is fixedly connected to the bottom of the lower frame shell, the lower support ring is fixedly connected to the inside of the cover shell, the second sliding seal ring is fixedly connected to the inner wall of the lower support ring, the sealing strip is fixedly installed on the lower surface of the lower support ring, the flip cover is rotatably connected to the lower surface of the cover shell, and the electromagnetic lock is fixedly installed between the cover shell and the flip cover.

[0008] Preferably, the reflux mechanism includes a top guide block, a third sliding seal ring, a reflux cylinder, a first reflux joint, a guide hole and a reflux pipe, the top guide block is fixedly connected to the inner wall of the top of the upper frame shell, the third sliding seal ring is fixedly connected to the inside of the top guide block, the reflux cylinder is fixedly inserted into the inside of the top guide block, the reflux pipe is fixedly installed on the top of the reflux cylinder through the first reflux joint, and the guide hole is opened inside the top guide block.

[0009] Preferably, the mixing and wetting mechanism includes a mixing barrel, a feed port, a steam guide hood, a steam joint, a smoke guide hood, a smoke joint and a second return joint. The mixing barrel is fixedly inserted into the inside of the guide hole. The number of the feed ports is two, and the feed ports are opened on the surface of the mixing barrel, and the inner wall of the feed port is tangent to the inner wall of the mixing barrel. The steam guide hood and the smoke guide hood are both fixedly connected to the surface of the mixing barrel, and the steam guide hood and the smoke guide hood are respectively connected to the two feed ports, the steam joint is fixedly connected to the surface of the steam guide hood, the smoke joint and the second return joint are both fixedly connected to the surface of the smoke guide hood, and the smoke guide hood is fixedly connected to the return pipe through the second return joint.

[0010] Preferably, the mixing and wetting mechanism also includes a pump cylinder, a ventilation frame, an air pump and a one-way valve, the pump cylinder is fixedly connected to the inside of the mixing cylinder, the ventilation frame is integrally arranged on the surface of the pump cylinder, the air pump is fixedly installed at one end of the pump cylinder, and the one-way valve is fixedly installed inside the pump cylinder.

[0011] Preferably, the particle interception mechanism includes a bottom extension cylinder, a top extension cylinder, a centrifugal fan blade, a driven wheel, a rotating motor, a driving wheel and a synchronous belt, the bottom extension cylinder is rotatably connected to the inside of the lower support ring through a bearing, the top extension cylinder is rotatably connected to the inside of the top guide block through a bearing, and the surface of the bottom extension cylinder is slidingly connected to the surface of the first sliding seal ring and the surface of the second sliding seal ring respectively, the surface of the top extension cylinder is slidingly connected to the surface of the third sliding seal ring, the centrifugal fan blade is fixedly connected between the bottom extension cylinder and the top extension cylinder, the driven wheel is fixedly sleeved on the surface of the bottom extension cylinder, the rotating motor is fixedly installed on the surface of the lower frame shell, the driving wheel is fixedly installed on the output end of the rotating motor, and the synchronous belt is installed between the driven wheel and the driving wheel.

[0012] Preferably, the particle interception mechanism further comprises a supporting filter screen and a filter cushion cylinder, wherein the supporting filter screen is fixedly installed between the bottom extension cylinder and the top extension cylinder, and the filter cushion cylinder is movably connected to the inside of the bottom extension cylinder.

[0013] Preferably, the filling mechanism includes a filling seat, a groove, a sealing ring and a ball. The filling seat is movably arranged inside the bottom extension tube, the groove is opened at the bottom of the filling seat, the sealing ring is fixedly sleeved on the surface of the filling seat, the sealing ring is fixedly sleeved on the surface of the filling seat, and the surface of the sealing ring is slidably connected to the inner wall of the bottom extension tube, and the ball is rollingly connected to the inner wall of the bottom of the filling seat.

[0014] A method for treating lead smelting tail gas, comprising:

[0015] Step S1: connect the steam joint to the steam output end of the steam generator through a pipeline, connect the flue gas joint to the external exhaust gas exhaust pipe through a pipeline, connect the gas-liquid exhaust external interface to the input end of the subsequent exhaust gas treatment device through a pipeline, and connect the cooling ring to the external condensate inlet pipe and the external condensate drain pipe through a water pipe joint;

[0016] Step S2: Slide the filling seat into the bottom extension tube;

[0017] Step S3: close the flip cover and lock the electromagnetic lock;

[0018] Step S4: starting the rotary motor to rotate the particle interception mechanism;

[0019] Step S5: start the steam generator, open the valve of the external exhaust gas discharge pipe, open the valve of the external condensate water inlet pipe, and start the air pump to humidify the exhaust gas;

[0020] Step S6: After use, turn off the rotating motor, turn off the steam generator, close the external exhaust gas exhaust pipe valve and turn off the air pump, open the electromagnetic lock, unfold the flip cover, take out the filling seat, clean the filter pad cylinder, and finally close the external condensate inlet pipe valve.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The lead smelting tail gas treatment equipment and method, through the cooling mechanism, reflux mechanism, mixing and wetting mechanism, particle intercepting mechanism and filling mechanism, can use steam to wet and settle the tail gas through the mixing and wetting mechanism in cooperation with an external steam generator when in use, and intercept solid particles and attach them to the inner wall of the filter pad cylinder through the rotating particle intercepting mechanism, filter out solid particles in the tail gas, ensure that many solid particles will not be attached when the waste liquid is cleaned, facilitate the waste liquid cleaning, avoid the solid particles from being deposited in the subsequent pipeline, avoid the pipeline from being easily blocked, and facilitate the subsequent reaction of the gas-liquid mixture.

[0023] The lead smelting tail gas treatment equipment and method, through the upper frame shell, heat-conducting shell, lower frame shell, cooling ring, spiral cooling channel, upper support ring, first sliding seal ring and gas-liquid discharge external interface, can achieve water cooling inside the heat-conducting shell by continuously introducing tap water into the spiral cooling channel during use, ensure rapid cooling and condensation of steam, and ensure rapid aggregation and falling of solid particles and liquid droplets after fusion.

[0024] The lead smelting tail gas treatment equipment and method can conveniently open the flip cover after use to clean particles attached to the inside of the filter pad cylinder through the provided cover, lower support ring, second sliding seal ring, sealing strip, flip cover and electromagnetic lock.

[0025] The lead smelting tail gas treatment equipment and method, through the top guide block, the third sliding seal ring, the reflux cylinder, the first reflux joint, the guide hole and the reflux pipe, can make some smoke and dust particles that are difficult to settle inside the filter pad cylinder flow back to the mixing cylinder for re-mixing, thereby ensuring that they are humidified and weighted, and then settled.

[0026] The lead smelting tail gas treatment equipment and method, through the provided mixing cylinder, feed port, steam guide hood, steam joint, smoke guide hood, smoke joint, second reflux joint, pump air cylinder, ventilation rack, air pump and one-way valve, can make steam and tail gas spirally advance continuously inside the mixing cylinder during use, so that the two are fully mixed, ensure the wet weight increase of solid particles, and ensure subsequent adhesion and sedimentation.

[0027] The lead smelting tail gas treatment equipment and method, through the arranged bottom extension cylinder, top extension cylinder, centrifugal fan blades, driven wheel, rotating motor, driving wheel, synchronous belt, supporting filter screen and filter pad cylinder, can utilize the supporting filter screen and filter pad cylinder to isolate and filter out solid particles in the tail gas during use, so as to facilitate subsequent treatment.

[0028] The lead smelting tail gas treatment equipment and method can fill the interior of the bottom extension tube through the filling seat when in use, thereby avoiding a large amount of steam condensate remaining, by means of the provided filling seat, groove, sealing ring and ball. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the structure of the present invention;

[0030] Figure 2 It is a side sectional view of the present invention;

[0031] Figure 3 This is a schematic diagram of the internal explosion structure of the present invention;

[0032] Figure 4 It is a top cross-sectional view of the present invention;

[0033] Figure 5 This is a schematic diagram of the structure of the mixing and wetting mechanism of the present invention;

[0034] Figure 6 It is a cross-sectional view of the mixing and wetting mechanism of the present invention;

[0035] Figure 7 This is a schematic diagram of the internal explosion structure of the mixing and wetting mechanism of the present invention;

[0036] Figure 8 It is a schematic diagram of the filling mechanism structure of the present invention;

[0037] Fig. 9 It is a schematic diagram of the structure of the particle interception mechanism of the present invention;

[0038] Fig.10 It is a schematic diagram of the explosion structure at the position of the supporting filter screen of the present invention.

[0039] In the figure: 101, upper frame shell; 102, heat-conducting shell; 103, lower frame shell; 104, cooling ring; 105, spiral cooling channel; 106, upper support ring; 107, first sliding seal ring; 108, gas-liquid discharge external interface; 109, cover shell; 110, lower support ring; 111, second sliding seal ring; 112, sealing strip; 113, flip cover; 114, electromagnetic lock; 201, top guide block; 202, third sliding seal ring; 203, reflux cylinder; 204, first reflux joint; 205, guide hole; 206, reflux pipe; 301, mixing cylinder; 302 , feed inlet; 303, steam guide hood; 304, steam joint; 305, flue gas guide hood; 306, flue gas joint; 307, second reflux joint; 308, pump air cylinder; 309, ventilation rack; 310, air pump; 311, one-way valve; 401, bottom extension cylinder; 402, top extension cylinder; 403, centrifugal fan blade; 404, driven wheel; 405, rotating motor; 406, driving wheel; 407, synchronous belt; 408, supporting filter; 409, filter pad cylinder; 501, filling seat; 502, groove; 503, sealing ring; 504, ball bearing. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] See also Figure 1-10A lead smelting tail gas treatment equipment comprises: a cooling mechanism, a reflux mechanism is arranged on the top of the cooling mechanism, a mixing and wetting mechanism is arranged between the cooling mechanism and the reflux mechanism, a particle interception mechanism is installed inside the cooling mechanism, and a filling mechanism is arranged inside the bottom of the particle interception mechanism. Through the provided cooling mechanism, reflux mechanism, mixing and wetting mechanism, particle interception mechanism and filling mechanism, the tail gas can be wetted and settled by steam through the mixing and wetting mechanism in cooperation with an external steam generator during use, and the solid particles can be intercepted and attached to the inner wall of the filter pad cylinder 409 through the rotating particle interception mechanism, and the solid particles in the tail gas are filtered out, so as to ensure that many solid particles will not be attached to the waste liquid during cleaning, facilitate the cleaning of the waste liquid, avoid the deposition of solid particles in the subsequent pipeline, avoid the pipeline from being easily blocked, and facilitate the subsequent reaction of the gas-liquid mixture.

[0042] The cooling mechanism includes an upper frame shell 101, a heat-conducting shell 102, a lower frame shell 103, a cooling ring 104, a spiral cooling channel 105, an upper support ring 106, a first sliding seal ring 107 and an air-liquid discharge external interface 108. The heat-conducting shell 102 is fixedly connected between the upper frame shell 101 and the lower frame shell 103. The cooling ring 104 is fixedly sleeved on the surface of the heat-conducting shell 102. The spiral cooling channel 105 runs through the interior of the cooling ring 104, and both ends of the spiral cooling channel 105 are provided with water pipe joints. The upper support ring 106 is fixedly connected to the inner of the lower frame shell 103. The first sliding sealing ring 107 is fixedly connected to the inner wall of the upper support ring 106, and the gas-liquid discharge external interface 108 is arranged on the surface of the lower frame shell 103. Through the upper frame shell 101, the heat-conducting shell 102, the lower frame shell 103, the cooling ring 104, the spiral cooling channel 105, the upper support ring 106, the first sliding sealing ring 107 and the gas-liquid discharge external interface 108, the water cooling inside the heat-conducting shell 102 can be achieved by continuously introducing tap water into the spiral cooling channel 105 during use, so as to ensure the rapid cooling and condensation of steam and the rapid aggregation and falling of solid particles and liquid droplets after fusion.

[0043] Among them; the cooling mechanism also includes a cover shell 109, a lower support ring 110, a second sliding seal ring 111, a sealing strip 112, a flip cover 113 and an electromagnetic lock 114, the cover shell 109 is fixedly connected to the bottom of the lower frame shell 103, the lower support ring 110 is fixedly connected to the inside of the cover shell 109, the second sliding seal ring 111 is fixedly connected to the inner wall of the lower support ring 110, the sealing strip 112 is fixedly installed on the lower surface of the lower support ring 110, the flip cover 113 is rotatably connected to the lower surface of the cover shell 109, and the electromagnetic lock 114 is fixedly installed between the cover shell 109 and the flip cover 113. By setting the cover shell 109, the lower support ring 110, the second sliding seal ring 111, the sealing strip 112, the flip cover 113 and the electromagnetic lock 114, it is convenient to open the flip cover 113 after use to clean the particles attached to the inside of the filter pad cylinder 409.

[0044] Among them; the reflux mechanism includes a top guide block 201, a third sliding seal ring 202, a reflux cylinder 203, a first reflux joint 204, a guide hole 205 and a reflux pipe 206, the top guide block 201 is fixedly connected to the inner wall of the top of the upper frame shell 101, the third sliding seal ring 202 is fixedly connected to the inside of the top guide block 201, the reflux cylinder 203 is fixedly plugged into the inside of the top guide block 201, the reflux pipe 206 is fixedly installed on the top of the reflux cylinder 203 through the first reflux joint 204, and the guide hole 205 is opened in the top guide block 201. Through the top guide block 201, the third sliding seal ring 202, the reflux cylinder 203, the first reflux joint 204, the guide hole 205 and the reflux pipe 206, some smoke particles that are difficult to settle in the filter pad cylinder 409 can be refluxed to the mixing cylinder 301 for re-mixing, ensuring that they are humidified and weighted, and then settled.

[0045] Among them; the mixing and wetting mechanism includes a mixing barrel 301, a feed port 302, a steam guide hood 303, a steam joint 304, a smoke guide hood 305, a smoke joint 306 and a second reflux joint 307, the mixing barrel 301 is fixedly inserted into the inside of the guide hole 205, the number of the feed ports 302 is two, and the feed ports 302 are opened on the surface of the mixing barrel 301, and the inner wall of the feed port 302 is tangent to the inner wall of the mixing barrel 301, the steam guide hood 303 and the smoke guide hood 305 are both fixedly connected to the surface of the mixing barrel 301, and the steam guide hood 303 and the smoke guide hood 305 are respectively connected to the two feed ports 302, the steam joint 304 is fixedly connected to the surface of the steam guide hood 303, the smoke joint 306 and the second reflux joint 307 are both fixedly connected to the surface of the smoke guide hood 305, and the smoke guide hood 305 is fixedly connected to the reflux pipe 206 through the second reflux joint 307.

[0046] Among them, the mixing and wetting mechanism also includes a pump cylinder 308, a ventilation rack 309, an air pump 310 and a one-way valve 311. The pump cylinder 308 is fixedly connected to the inside of the mixing cylinder 301, the ventilation rack 309 is integrally arranged on the surface of the pump cylinder 308, the air pump 310 is fixedly installed at one end of the pump cylinder 308, and the one-way valve 311 is fixedly installed inside the pump cylinder 308. Through the arranged mixing cylinder 301, feed port 302, steam guide hood 303, steam joint 304, flue gas guide hood 305, flue gas joint 306, second reflux joint 307, pump cylinder 308, ventilation rack 309, air pump 310 and one-way valve 311, the steam and exhaust gas can be continuously spirally advanced inside the mixing cylinder 301 during use, so that the two are fully mixed, thereby ensuring the wetting and weight increase of solid particles and ensuring subsequent adhesion and sedimentation.

[0047] Among them; the particle interception mechanism includes a bottom extension cylinder 401, a top extension cylinder 402, a centrifugal fan blade 403, a driven wheel 404, a rotating motor 405, a driving wheel 406 and a synchronous belt 407, the bottom extension cylinder 401 is rotatably connected to the inside of the lower support ring 110 through a bearing, the top extension cylinder 402 is rotatably connected to the inside of the top guide block 201 through a bearing, and the surface of the bottom extension cylinder 401 is slidingly connected to the surface of the first sliding seal ring 107 and the surface of the second sliding seal ring 111 respectively, the surface of the top extension cylinder 402 is slidingly connected to the surface of the third sliding seal ring 202, the centrifugal fan blade 403 is fixedly connected between the bottom extension cylinder 401 and the top extension cylinder 402, the driven wheel 404 is fixedly sleeved on the surface of the bottom extension cylinder 401, the rotating motor 405 is fixedly installed on the surface of the lower frame shell 103, the driving wheel 406 is fixedly installed at the output end of the rotating motor 405, and the synchronous belt 407 is installed between the driven wheel 404 and the driving wheel 406.

[0048] Among them; the particle interception mechanism also includes a supporting filter 408 and a filter pad cylinder 409, the supporting filter 408 is fixedly installed between the bottom extension cylinder 401 and the top extension cylinder 402, and the filter pad cylinder 409 is movably connected to the inside of the bottom extension cylinder 401. Through the arrangement of the bottom extension cylinder 401, the top extension cylinder 402, the centrifugal fan blades 403, the driven wheel 404, the rotating motor 405, the driving wheel 406, the synchronous belt 407, the supporting filter 408 and the filter pad cylinder 409, the supporting filter 408 and the filter pad cylinder 409 can be used to isolate and filter out solid particles in the exhaust gas during use, which is convenient for subsequent processing.

[0049] Among them; the filling mechanism includes a filling seat 501, a groove 502, a sealing ring 503 and a ball 504, the filling seat 501 is movably arranged inside the bottom extension tube 401, the groove 502 is opened at the bottom of the filling seat 501, the sealing ring 503 is fixedly sleeved on the surface of the filling seat 501, the sealing ring 503 is fixedly sleeved on the surface of the filling seat 501, and the surface of the sealing ring 503 is slidingly connected to the inner wall of the bottom extension tube 401, and the ball 504 is rollingly connected to the inner wall of the bottom of the filling seat 501. Through the setting of the filling seat 501, the groove 502, the sealing ring 503 and the ball 504, the inside of the bottom extension tube 401 can be filled through the filling seat 501 when in use, avoiding a large amount of steam condensate water residue.

[0050] A method for treating lead smelting tail gas, comprising:

[0051] Step S1: connect the steam connector 304 to the steam output end of the steam generator through a pipeline, connect the flue gas connector 306 to the external exhaust gas exhaust pipe through a pipeline, connect the gas-liquid exhaust external interface 108 to the input end of the subsequent exhaust gas treatment device through a pipeline, and connect the cooling ring 104 to the external condensate water inlet pipe and the external condensate water drain pipe through a water pipe docking joint;

[0052] Step S2: Slide the filling seat 501 into the bottom extension tube 401;

[0053] Step S3: closing the flip cover 113 and locking the electromagnetic lock 114;

[0054] Step S4: Start the rotating motor 405 to rotate the particle interception mechanism. When the rotating motor 405 is started, the rotating motor 405 drives the driving wheel 406. The driving wheel 406 drives the driven wheel 404 through the synchronous belt 407. The driven wheel 404 drives the bottom extension cylinder 401, so that the support filter 408 and the filter pad cylinder 409 rotate at high speed. The rotation of the support filter 408 drives the centrifugal blades 403 to revolve at high speed. The rotation of the centrifugal blades 403 generates negative pressure from the center to the periphery, so that the exhaust gas forms a trend of continuously flowing outward from the middle of the filter pad cylinder 409.

[0055] Step S5: Start the steam generator, open the valve of the external exhaust gas discharge pipe, open the valve of the external condensate inlet pipe, start the air pump 310 to humidify the exhaust gas. After the steam generator, the valve of the external exhaust gas discharge pipe and the air pump 310 are opened, the air pump 310 continuously pumps air into the guide hole 205 through the pump cylinder 308. When the high-speed airflow enters the guide hole 205, a negative pressure area is formed, so that water vapor and exhaust gas are continuously inhaled. During inhalation, the exhaust gas and water vapor enter the mixing cylinder 301 from the two feed ports 302 respectively. After entering, the two gas spirally move forward along the inner wall of the mixing cylinder 301, so that the two gas continuously collide and mix. The mixed flue gas mixes with the high-speed airflow and spirally descends along the guide hole 205 again. When descending, it enters the filter pad cylinder 409 and is attracted to the periphery by the negative pressure. At the same time, the solid particles in the flue gas The solid particles are wetted and collide with each other to adhere to the inner surface of the filter pad cylinder 409. Some solid particles that are not completely wetted float inside the filter pad cylinder 409 and are easily attracted by the negative pressure from the second reflux joint 307, so as to flow back to the mixing cylinder 301 for wetting again. After the smoke is attracted to the periphery, the solid particles will adhere to the inner surface of the filter pad cylinder 409. The gas is pumped by the negative pressure through the filter pad cylinder 409 to the upper frame shell 101, the heat-conducting shell 102 and the lower frame shell 103. The liquid is thrown outward by the centrifugal action of the filter pad cylinder 409 to the upper frame shell 101, the heat-conducting shell 102 and the lower frame shell 103, and then cooled by the cooling ring 104 to condense the water vapor. Then the gas-liquid mixture is discharged from the gas-liquid discharge external interface 108 to the subsequent processing device for chemical treatment or recovery.

[0056] Step S6: After use, turn off the rotating motor 405, turn off the steam generator, close the external exhaust gas exhaust pipe valve and turn off the air pump 310, open the electromagnetic lock 114, unfold the flip cover 113, take out the filling seat 501, clean the filter pad cylinder 409, and finally close the external condensate inlet pipe valve.

[0057] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lead smelting tail gas treatment equipment, characterized in that: include: A cooling mechanism, wherein a reflux mechanism is disposed on the top of the cooling mechanism, a mixing and wetting mechanism is disposed between the cooling mechanism and the reflux mechanism, a particle interception mechanism is installed inside the cooling mechanism, and a filling mechanism is disposed inside the bottom of the particle interception mechanism; The reflux mechanism comprises a top guide block (201), a third sliding seal ring (202), a reflux cylinder (203), a first reflux joint (204), a guide hole (205) and a reflux pipe (206); the top guide block (201) is fixedly connected to the inner wall at the top of the upper frame shell (101); the third sliding seal ring (202) is fixedly connected to the inside of the top guide block (201); the reflux cylinder (203) is fixedly plugged into the inside of the top guide block (201); the reflux pipe (206) is fixedly installed on the top of the reflux cylinder (203) via the first reflux joint (204); and the guide hole (205) is provided inside the top guide block (201); The mixing and wetting mechanism comprises a mixing cylinder (301), a feed port (302), a steam guide hood (303), a steam joint (304), a smoke guide hood (305), a smoke joint (306) and a second reflux joint (307); the mixing cylinder (301) is fixedly plugged into the interior of the flow guide hole (205); the number of the feed ports (302) is two, and the feed ports (302) are provided on the surface of the mixing cylinder (301); the inner wall of the feed port (302) is tangent to the inner wall of the mixing cylinder (301); the steam guide hood ( The steam guide hood (303) and the smoke guide hood (305) are both fixedly connected to the surface of the mixing barrel (301), and the steam guide hood (303) and the smoke guide hood (305) are respectively connected to the two feed ports (302), the steam joint (304) is fixedly connected to the surface of the steam guide hood (303), the smoke joint (306) and the second return joint (307) are both fixedly connected to the surface of the smoke guide hood (305), and the smoke guide hood (305) is fixedly connected to the return pipe (206) via the second return joint (307).

2. A lead smelting tail gas treatment equipment according to claim 1, characterized in that: The cooling mechanism comprises an upper frame shell (101), a heat-conducting shell (102), a lower frame shell (103), a cooling ring (104), a spiral cooling channel (105), an upper support ring (106), a first sliding seal ring (107) and a gas-liquid discharge external interface (108); the heat-conducting shell (102) is fixedly connected between the upper frame shell (101) and the lower frame shell (103); the cooling ring (104) is fixedly sleeved on the surface of the heat-conducting shell (102); the spiral cooling channel (105) runs through the interior of the cooling ring (104); and water pipe joints are provided at both ends of the spiral cooling channel (105); the upper support ring (106) is fixedly connected to the inner wall of the lower frame shell (103); the first sliding seal ring (107) is fixedly connected to the inner wall of the upper support ring (106); and the gas-liquid discharge external interface (108) is provided on the surface of the lower frame shell (103).

3. A lead smelting tail gas treatment equipment according to claim 2, characterized in that: The cooling mechanism further comprises a cover shell (109), a lower support ring (110), a second sliding seal ring (111), a sealing strip (112), a flip cover (113) and an electromagnetic lock (114); the cover shell (109) is fixedly connected to the bottom of the lower frame shell (103); the lower support ring (110) is fixedly connected to the inside of the cover shell (109); the second sliding seal ring (111) is fixedly connected to the inner wall of the lower support ring (110); the sealing strip (112) is fixedly installed on the lower surface of the lower support ring (110); the flip cover (113) is rotatably connected to the lower surface of the cover shell (109); and the electromagnetic lock (114) is fixedly installed between the cover shell (109) and the flip cover (113).

4. A lead smelting tail gas treatment equipment according to claim 1, characterized in that: The mixing and wetting mechanism further comprises a pump cylinder (308), a ventilation frame (309), an air pump (310) and a one-way valve (311); the pump cylinder (308) is fixedly connected to the interior of the mixing cylinder (301); the ventilation frame (309) is integrally arranged on the surface of the pump cylinder (308); the air pump (310) is fixedly mounted on one end of the pump cylinder (308); and the one-way valve (311) is fixedly mounted inside the pump cylinder (308).

5. The lead smelting tail gas treatment equipment according to claim 3, characterized in that: The particle interception mechanism comprises a bottom extension cylinder (401), a top extension cylinder (402), a centrifugal fan blade (403), a driven wheel (404), a rotating motor (405), a driving wheel (406) and a synchronous belt (407); the bottom extension cylinder (401) is rotatably connected to the inside of the lower support ring (110) via a bearing; the top extension cylinder (402) is rotatably connected to the inside of the top guide block (201) via a bearing; and the surface of the bottom extension cylinder (401) is slidably connected to the surface of the first sliding seal ring (107) and the surface of the second sliding seal ring (111). The surface of the top extension tube (402) is slidably connected to the surface of the third sliding seal ring (202); the centrifugal blade (403) is fixedly connected between the bottom extension tube (401) and the top extension tube (402); the driven wheel (404) is fixedly sleeved on the surface of the bottom extension tube (401); the rotating motor (405) is fixedly mounted on the surface of the lower frame shell (103); the driving wheel (406) is fixedly mounted on the output end of the rotating motor (405); and the synchronous belt (407) is mounted between the driven wheel (404) and the driving wheel (406).

6. A lead smelting tail gas treatment equipment according to claim 5, characterized in that: The particle interception mechanism further comprises a supporting filter screen (408) and a filter cushion cylinder (409); the supporting filter screen (408) is fixedly mounted between the bottom extension cylinder (401) and the top extension cylinder (402); and the filter cushion cylinder (409) is movably connected inside the bottom extension cylinder (401).

7. A lead smelting tail gas treatment equipment according to claim 6, characterized in that: The filling mechanism comprises a filling seat (501), a groove (502), a sealing ring (503) and a ball (504); the filling seat (501) is movably arranged inside the bottom extension tube (401); the groove (502) is opened at the bottom of the filling seat (501); the sealing ring (503) is fixedly sleeved on the surface of the filling seat (501); the sealing ring (503) is fixedly sleeved on the surface of the filling seat (501); the surface of the sealing ring (503) is slidably connected to the inner wall of the bottom extension tube (401); and the ball (504) is rollingly connected to the inner wall of the bottom of the filling seat (501).

8. A method for treating lead smelting tail gas based on the lead smelting tail gas treatment equipment according to any one of claims 1 to 7, characterized in that: include: Step S1: connecting the steam connector (304) to the steam output end of the steam generator through a pipeline, connecting the flue gas connector (306) to the external exhaust gas discharge pipe through a pipeline, connecting the gas-liquid discharge external interface (108) to the input end of the subsequent exhaust gas treatment device through a pipeline, and connecting the cooling ring (104) to the external condensate water inlet pipe and the external condensate water discharge pipe through a water pipe docking joint; Step S2: Sliding the filling seat (501) into the bottom extension tube (401); Step S3: closing the flip cover (113) and locking the electromagnetic lock (114); Step S4: starting the rotating motor (405) to rotate the particle interception mechanism; Step S5: starting the steam generator, opening the valve of the external exhaust gas discharge pipe, opening the valve of the external condensate water inlet pipe, and starting the air pump (310) to humidify the exhaust gas; Step S6: After use, turn off the rotating motor (405), turn off the steam generator, close the valve of the external exhaust gas exhaust pipe and turn off the air pump (310), open the electromagnetic lock (114), unfold the flip cover (113), take out the filling seat (501), clean the filter pad cylinder (409), and finally close the valve of the external condensate inlet pipe.

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