Equipment for removing hydrogen sulfide from tail gas

Abstract

The utility model relates to the technical field of hydrogen sulfide removal, in particular to tail gas hydrogen sulfide removal equipment which comprises a desulfurization box, a top plate is fixedly installed on the upper surface of the desulfurization box, the upper surface of the top plate is communicated with a gas outlet pipe, and the side wall of the desulfurization box is communicated with a spraying pipe, a solution water injection pipe, a water inlet pipe and a gas inlet pipe. A control screen and an observation window are fixedly mounted on the surface of the desulfurization box, a replacement mechanism is arranged on the surface of the gas outlet pipe and comprises a reserved groove formed in the side wall of the gas outlet pipe, a rotating shaft is rotatably mounted on the upper surface of the top plate, and a rotating plate is fixedly mounted on the side wall of the rotating shaft. According to the device, the replacement mechanism is arranged, and the activated carbon particles at the position of the gas outlet pipe are regularly replaced, so that the secondary removal work of tail gas containing hydrogen sulfide at the position of the gas outlet pipe is improved, and the removal efficiency of the tail gas containing hydrogen sulfide at the position of the gas outlet pipe is improved to a certain extent.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrogen sulfide removal, in particular to a device for removing hydrogen sulfide from tail gas. Background Art

[0002] Removing hydrogen sulfide means separating or degrading hydrogen sulfide from gas or liquid containing hydrogen sulfide gas to achieve the purpose of removing hydrogen sulfide. Common methods for removing hydrogen sulfide include: absorption method, oxidation method, adsorption method, and biological method. The specific method for removing hydrogen sulfide depends on factors such as the source, concentration, and medium to be treated of hydrogen sulfide. The appropriate desulfurization method can be selected according to the specific situation.

[0003] A Chinese patent with publication number CN220026608U discloses a tail gas hydrogen sulfide removal device, including a desulfurization box, a spraying mechanism, a demister, an observation window, an operating screen and a moving wheel, wherein the spraying mechanism is fixedly installed in the desulfurization box, the demister is fixedly installed in the desulfurization box, the observation window is connected to one side of the desulfurization box, the operating screen is fixedly installed on the desulfurization box and is on the same side as the observation box, and the moving wheel is fixedly installed below the desulfurization box, wherein the spraying mechanism is fixedly installed on the upper part of the desulfurization box, the demister is fixedly installed in the desulfurization box below the spraying mechanism, and the observation window is connected to one side of the desulfurization box and is located above the demister. By using the demister and the spraying mechanism, the service life of the equipment is increased, the corrosion of the equipment by hydrogen sulfide gas is avoided, and the safety of the equipment is improved.

[0004] The existing related technologies often have the following defects: in the actual use of the existing desulfurization box, after the exhaust gas is removed by spraying, a small amount of hydrogen sulfide impurities are still contained inside. The traditional solution is to use activated carbon adsorption to remove hydrogen sulfide for a secondary time. However, the activated carbon particles located at the outlet pipe are not convenient for the staff to replace them regularly, thereby reducing the efficiency of the secondary removal of hydrogen sulfide.

[0005] Therefore, the utility model provides a device for removing hydrogen sulfide from tail gas. Utility Model Content

[0006] The utility model aims to solve the shortcoming in the prior art that it is inconvenient to regularly replace activated carbon particles located at the outlet pipe, and proposes a tail gas hydrogen sulfide removal device.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a tail gas hydrogen sulfide removal equipment, including a desulfurization box, a top plate is fixedly installed on the upper surface of the desulfurization box, the upper surface of the top plate is connected with an air outlet pipe, the side wall of the desulfurization box is connected with a spray pipe, a solution water injection pipe, a water inlet pipe and an air inlet pipe, a control screen and an observation window are fixedly installed on the surface of the desulfurization box, the surface of the air outlet pipe is provided with a replacement mechanism, the replacement mechanism includes a reserved groove opened on the side wall of the air outlet pipe, a rotating shaft is rotatably installed on the upper surface of the top plate, a rotating plate is fixedly installed on the side wall of the rotating shaft, a circular hole with the same size as the inner diameter of the air outlet pipe is opened on the surface of the rotating plate, a fixing strip is fixedly installed on the inner side of the circular hole, a screw is connected to the internal thread of the fixing strip, a lower mesh plate is fixedly installed on the lower end of the screw, a rotating block is fixedly installed on the upper end of the screw, and an upper mesh plate is placed above the rotating block.

[0008] The effect achieved by the above components is: after the rotating plate is rotated out from the inner side of the reserved groove, the upper mesh plate located above the rotating block can be opened. After the upper mesh plate is opened, the rotating block can be rotated, and the rotating block will drive the screw to open the lower mesh plate from the lower side of the rotating plate, so that the saturated activated carbon particles on the lower mesh plate after use can be pulled out, and the pulled out activated carbon particles can fall into the hopper for centralized treatment, and then they can be exported through the nozzle position of the fixed pipe, and then the rotating block is rotated again to seal the lower mesh plate under the rotating plate. At this time, new activated carbon particles can be replaced between the lower mesh plate and the rotating plate.

[0009] Preferably, elastic rings with annular structures are glued to both sides of the rotating plate.

[0010] The effect achieved by the above components is that by arranging the elastic ring on the inner side of the reserved groove, the tightness of the rotating plate rotated into the inner side of the reserved groove for use can be improved.

[0011] Preferably, two fixing rods are fixedly connected to the side wall of the top plate, and one end of the two fixing rods close to each other is fixedly connected to a fixing pipe, and the upper end of the fixing pipe is connected to the hopper.

[0012] The effect achieved by the above components is that the activated carbon particles can fall into the hopper for centralized treatment and then can be discharged through the nozzle position of the fixed pipe.

[0013] Preferably, a positioning plate is fixedly connected to the upper surface of the top plate, a sliding pin is slidably connected to the inside of the positioning plate, a clamping block is fixedly connected to the end side of the sliding pin, a first spring is sleeved on the side wall of the sliding pin, two ends of the first spring are respectively fixedly connected to the clamping block and the positioning block, and a plurality of clamping grooves are evenly opened on the side wall of the rotating shaft, and the size of the clamping grooves is matched with the size of the clamping block.

[0014] The effect achieved by the above-mentioned components is: by rotating the rotating shaft, the rotating shaft will drive the rotating plate to rotate into the inner side of the reserved groove. At this time, the sliding pin is loosened, and the clamping block will be inserted into the inner side of the reserved groove under the elastic force of the first spring on the positioning plate, thereby realizing the fixed installation of the rotating plate rotated into the inner side of the reserved groove.

[0015] Preferably, a collecting structure is provided on the outer side of the fixed tube, and the collecting structure comprises a collecting bag sleeved on the lower port position of the fixed tube.

[0016] The effect achieved by the above components is that the exported waste activated carbon particles will be introduced into the interior of the collecting bag, thereby realizing the fixed installation of the collecting bag.

[0017] Preferably, a slide plate is slidably connected to the side wall of the fixing rod, a cone rod is fixedly connected to the surface of the slide plate, and a plug hole is provided on the outer side of the fixing tube.

[0018] The effect achieved by the above components is: driving the cone rod to be inserted into the inner side of the collecting bag, and then passing through the collecting bag and being inserted into the inner side of the insertion hole, so as to realize the fixing work of the collecting bag.

[0019] Preferably, a fixing ring is fixedly connected to the outer side of the fixing rod, a second spring is sleeved on the surface of the fixing rod, and two ends of the second spring are fixedly connected to the fixing ring and the slide plate respectively.

[0020] The effect achieved by the above components is that the slide plate is driven by the elastic force of the second spring on the fixing ring to drive the cone rod to insert into the inner side of the collecting bag.

[0021] In summary:

[0022] 1. In the utility model, the activated carbon particles that are pulled out can fall into the hopper for centralized treatment, and then can be exported through the pipe mouth position of the fixed pipe, and then the rotating block is rotated again to seal the lower mesh plate under the rotating plate. At this time, new activated carbon particles can be replaced between the lower mesh plate and the rotating plate. By setting up a replacement mechanism and regularly replacing the activated carbon particles at the outlet pipe position, the secondary removal of the exhaust gas containing hydrogen sulfide at the outlet pipe position is improved, and the removal efficiency of the exhaust gas containing hydrogen sulfide at the outlet pipe position is improved to a certain extent.

[0023] 2. In the utility model, the two slides are pulled toward the side away from each other, and the lower end of the fixed tube is covered with the collecting bag. At this time, the slide is released, and the slide is driven by the elastic force of the second spring on the fixed ring to drive the cone rod to insert into the inner side of the collecting bag, and then pass through the collecting bag and insert into the inner side of the insertion hole, so as to realize the fixing of the collecting bag. By setting the collecting structure, the fixing and supporting work of the bag mouth of the collecting bag is facilitated, thereby facilitating the collection of the waste activated carbon particles guided out from the pipe mouth of the fixed tube, and improving the efficiency of the centralized treatment of the waste activated carbon particles to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0025] Figure 2 This is a schematic structural diagram of the utility model from another angle;

[0026] Figure 3 It is a partial structural schematic diagram of the replacement mechanism in the utility model;

[0027] Figure 4 For the utility model Figure 2 Schematic diagram of the local structure;

[0028] Figure 5 For the utility model Figure 3 A magnified image of point A;

[0029] Figure 6 For the utility model Figure 4 Enlarged view of point B.

[0030] Legend: 1. Desulfurization box; 2. Observation window; 3. Control panel; 4. Top plate; 5. Exhaust pipe; 6. Replacement mechanism; 601. Rotating shaft; 602. Fixed pipe; 603. Rotating plate; 604. Reserved slot; 605. Upper screen; 606. Elastic ring; 607. Fixed rod; 608. Hopper; 609. Lower screen; 610. Fixed bar; 611. Screw; 612. Rotating block; 613. Positioning plate; 614. Sliding pin; 615. Block; 616. First spring; 7. Collection structure; 71. Collection bag; 72. Slide plate; 73. Conical rod; 74. Socket; 75. Fixed ring; 76. Second spring; 8. Spraying pipe; 9. Solution water injection pipe; 10. Water inlet pipe; 11. Inlet pipe. DETAILED DESCRIPTION

[0031] Reference Figure 1 As shown, the utility model provides a technical solution: a tail gas hydrogen sulfide removal device, comprising a desulfurization box 1, a top plate 4 is fixedly installed on the upper surface of the desulfurization box 1, the upper surface of the top plate 4 is connected with an outlet pipe 5, the side wall of the desulfurization box 1 is connected with a spraying pipe 8, a solution injection pipe 9, a water inlet pipe 10 and an air inlet pipe 11, a control panel 3 and an observation window 2 are fixedly installed on the surface of the desulfurization box 1, a replacement mechanism 6 is provided on the surface of the outlet pipe 5, and a collecting structure 7 is provided on the outer side of the fixed pipe 602.

[0032] The specific configuration and function of the replacement mechanism 6 and the collection structure 7 will be described in detail below.

[0033] Reference Figure 1-Figure 5As shown, in this embodiment: the replacement mechanism 6 includes a reserved groove 604 opened on the side wall of the air outlet pipe 5, a rotating shaft 601 is rotatably installed on the upper surface of the top plate 4, a rotating plate 603 is fixedly installed on the side wall of the rotating shaft 601, a circular hole with the same size as the inner diameter of the air outlet pipe 5 is opened on the surface of the rotating plate 603, a fixing bar 610 is fixedly installed on the inner side of the circular hole, a screw 611 is connected to the internal thread of the fixing bar 610, a lower mesh plate 609 is fixedly installed on the lower end of the screw 611, a rotating block 612 is fixedly installed on the upper end of the screw 611, and an upper mesh plate 605 is placed above the rotating block 612. After rotating the rotating plate 603 out of the inner side of the reserved groove 604, the upper plate 605 located above the rotating block 612 can be opened. After opening the upper plate 605, the rotating block 612 can be rotated, and the rotating block 612 will drive the screw 611 to open the lower mesh plate 609 from the lower side of the rotating plate 603, so that the activated carbon particles saturated after use on the lower mesh plate 609 can be pulled out, and the pulled out activated carbon particles can fall into the hopper 608 for centralized treatment, and then can be exported through the nozzle position of the fixed pipe 602, and then the rotating block 612 is rotated again to block the lower mesh plate 609 under the rotating plate 603, and new activated carbon particles can be replaced between the lower mesh plate 609 and the rotating plate 603. The two sides of the rotating plate 603 are glued with an elastic ring 606 of an annular structure. By setting the elastic ring 606 on the inner side of the reserved groove 604, the tightness of the rotating plate 603 inside the reserved groove 604 can be improved.

[0034] The side wall of the top plate 4 is fixedly connected to two fixed rods 607, and the ends of the two fixed rods 607 close to each other are fixedly connected to the fixed pipe 602, and the upper end of the fixed pipe 602 is connected to the hopper 608. The activated carbon particles can fall into the hopper 608 for centralized treatment, and then can be exported through the nozzle position of the fixed pipe 602. The upper surface of the top plate 4 is fixedly connected to a positioning plate 613, and the interior of the positioning plate 613 is slidably connected to a sliding pin 614, and the end side of the sliding pin 614 is fixedly connected to a block 615, and the side wall of the sliding pin 614 is sleeved with a first spring 616, and the two ends of the first spring 616 are respectively fixedly connected to the block 615 and the positioning block, and the side wall of the rotating shaft 601 is evenly provided with a plurality of slots, and the size of the slots is adapted to the size of the block 615. Rotate the rotating shaft 601, and the rotating shaft 601 will drive the rotating plate 603 to rotate into the inner side of the reserved groove 604. At this time, release the sliding pin 614, and the block 615 will be inserted into the inner side of the reserved groove 604 under the elastic force of the first spring 616 on the positioning plate 613, so as to realize the fixed installation of the rotating plate 603 rotated into the inner side of the reserved groove 604.

[0035] Reference Figure 1-Figure 2 and Figure 4 as well as Figure 6As shown, specifically, the collecting structure 7 includes a collecting bag 71 sleeved on the lower end of the fixing pipe 602. The discharged waste activated carbon particles are introduced into the interior of the collecting bag 71, so that the fixing and installation of the collecting bag 71 can be realized.

[0036] The side wall of the fixed rod 607 is slidably connected with a slide plate 72, the surface of the slide plate 72 is fixedly connected with a cone rod 73, and the outer side of the fixed tube 602 is provided with an insertion hole 74. The cone rod 73 is driven to insert into the inner side of the collection bag 71, and then passes through the collection bag 71 and inserts into the inner side of the insertion hole 74, so as to achieve the fixing of the collection bag 71. The outer side of the fixed rod 607 is fixedly connected with a fixing ring 75, and the surface of the fixed rod 607 is covered with a second spring 76, and the two ends of the second spring 76 are fixedly connected to the fixing ring 75 and the slide plate 72 respectively. The slide plate 72 is driven by the elastic force of the second spring 76 on the fixing ring 75 to drive the cone rod 73 to insert into the inner side of the collection bag 71.

[0037] Working principle: when it is necessary to replace the activated carbon adsorption particles on the inner side of the outlet pipe 5, first pull the sliding pin 614. When the block 615 is pulled out from the inner side of the card slot on the rotating shaft 601, the rotating shaft 601 can be rotated, and the rotating shaft 601 will drive the rotating plate 603 to rotate. After the rotating plate 603 is rotated out from the inner side of the reserved slot 604, the net plate 605 located above the rotating block 612 can be opened. After the net plate 605 is opened, the rotating block 612 can be rotated. The rotating block 612 will drive the screw 611 to open the lower mesh plate 609 from the lower side of the rotating plate 603, and the activated carbon particles saturated after use on the lower mesh plate 609 can be pulled out. The pulled out activated carbon particles can fall into the hopper 608 for centralized treatment, and then can be exported through the nozzle position of the fixed pipe 602. Then, the rotating block 612 is rotated again to seal the lower mesh plate 609 under the rotating plate 603. At this time, the lower mesh plate 609 and the rotating plate 603, and then replace the new activated carbon particles. After the activated carbon particles are replaced, the net plate 605 can be covered on the top of the rotating block 612. At this time, the rotating shaft 601 can be rotated, and the rotating shaft 601 will drive the rotating plate 603 to rotate into the inner side of the reserved groove 604. At this time, the sliding pin 614 is released, and the block 615 is inserted into the inner side of the reserved groove 604 by the elastic force of the first spring 616 on the positioning plate 613, thereby realizing the fixed installation of the rotating plate 603 inside the reserved groove 604. By arranging the elastic ring 606 on the inner side of the reserved groove 604, the tightness of the rotating plate 603 inside the reserved groove 604 can be improved. By arranging the replacement mechanism 6 and regularly replacing the activated carbon particles at the position of the outlet pipe 5, the secondary removal of the exhaust gas containing hydrogen sulfide at the position of the outlet pipe 5 is improved, and the removal efficiency of the exhaust gas containing hydrogen sulfide at the position of the outlet pipe 5 is improved to a certain extent.

[0038] The two slide plates 72 are pulled toward the side away from each other, and the lower end of the fixed tube 602 is covered with the collecting bag 71. At this time, the slide plate 72 is released, and the slide plate 72 is driven by the elastic force of the second spring 76 on the fixing ring 75 to drive the cone rod 73 to insert into the inner side of the collecting bag 71, and then pass through the collecting bag 71 and insert into the inner side of the insertion hole 74, so as to realize the fixing of the collecting bag 71, and the discharged waste activated carbon particles will be introduced into the interior of the collecting bag 71, thereby realizing the fixing and installation of the collecting bag 71, and the activated carbon particles discharged at the pipe mouth of the fixed tube 602 will fall into the interior of the collecting bag 71 for centralized treatment. By setting the collecting structure 7, the fixing and supporting work of the bag mouth of the collecting bag 71 is facilitated, thereby facilitating the collection of the waste activated carbon particles discharged at the pipe mouth of the fixed tube 602, and improving the efficiency of the centralized treatment of the waste activated carbon particles to a certain extent.

[0039] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

Claims

1. A device for removing hydrogen sulfide from tail gas, comprising a desulfurization box (1), characterized in that: A top plate (4) is fixedly mounted on the upper surface of the desulfurization box (1), and the upper surface of the top plate (4) is connected to an air outlet pipe (5). The side wall of the desulfurization box (1) is connected to a spray pipe (8), a solution water injection pipe (9), a water inlet pipe (10) and an air inlet pipe (11). A control panel (3) and an observation window (2) are fixedly mounted on the surface of the desulfurization box (1). A replacement mechanism (6) is provided on the surface of the air outlet pipe (5). The replacement mechanism (6) includes a reserved groove (604) provided on the side wall of the air outlet pipe (5). The upper surface of the top plate (4) is rotatably mounted. A rotating shaft (601) is provided, a rotating plate (603) is fixedly mounted on the side wall of the rotating shaft (601), a circular hole having the same inner diameter as the air outlet pipe (5) is opened on the surface of the rotating plate (603), a fixing bar (610) is fixedly mounted on the inner side of the circular hole, a screw rod (611) is connected to the inner thread of the fixing bar (610), a lower mesh plate (609) is fixedly mounted on the lower end of the screw rod (611), a rotating block (612) is fixedly mounted on the upper end of the screw rod (611), and an upper mesh plate (605) is placed above the rotating block (612).

2. The tail gas hydrogen sulfide removal equipment according to claim 1, characterized in that: Elastic rings (606) with an annular structure are glued to both sides of the rotating plate (603).

3. The tail gas hydrogen sulfide removal equipment according to claim 1, characterized in that: Two fixing rods (607) are fixedly connected to the side wall of the top plate (4); one end of the two fixing rods (607) close to each other is fixedly connected to a fixing pipe (602); and the upper end of the fixing pipe (602) is connected to a hopper (608).

4. The tail gas hydrogen sulfide removal equipment according to claim 1, characterized in that: A positioning plate (613) is fixedly connected to the upper surface of the top plate (4), a sliding pin (614) is slidably connected inside the positioning plate (613), a clamping block (615) is fixedly connected to the end side of the sliding pin (614), a first spring (616) is sleeved on the side wall of the sliding pin (614), and two ends of the first spring (616) are respectively fixedly connected to the clamping block (615) and the positioning block, and a plurality of clamping grooves are evenly formed on the side wall of the rotating shaft (601), and the size of the clamping grooves is adapted to the size of the clamping block (615).

5. The tail gas hydrogen sulfide removal equipment according to claim 3, characterized in that: A collection structure (7) is provided on the outside of the fixed tube (602), and the collection structure (7) comprises a collection bag (71) sleeved on the lower port of the fixed tube (602).

6. The tail gas hydrogen sulfide removal equipment according to claim 3, characterized in that: A slide plate (72) is slidably connected to the side wall of the fixed rod (607), a cone rod (73) is fixedly connected to the surface of the slide plate (72), and an insertion hole (74) is provided on the outer side of the fixed tube (602).

7. The tail gas hydrogen sulfide removal equipment according to claim 6, characterized in that: A fixing ring (75) is fixedly connected to the outer side of the fixing rod (607), a second spring (76) is sleeved on the surface of the fixing rod (607), and two ends of the second spring (76) are respectively fixedly connected to the fixing ring (75) and the slide plate (72).

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