COSCR denitration, carbon removal and noise reduction device

Abstract

The utility model belongs to the technical field of tail gas treatment, and discloses a COSCR denitration, carbon removal and noise reduction device which comprises a tail gas channel, a tail gas pre-treatment mechanism, a carbon removal and noise reduction mechanism and a carbon removal and noise reduction mechanism. The tail gas pretreatment mechanism comprises two groups of gas filtering plates which are obliquely arranged in the tail gas channel, a plurality of groups of filtering holes are formed in the plate surfaces of the two groups of gas filtering plates in a penetrating manner, and a shake-off ball is arranged on one side of each gas filtering plate. And large particles mixed in the tail gas can be effectively filtered. Large particles mixed in tail gas are not prone to entering a catalytic carrier to cause blockage and affect the tail gas treatment efficiency, a ball pushing rod arranged in the tail gas pretreatment mechanism can push a shake-off ball to make the shake-off ball impact a gas filter plate, and therefore the large particles blocked in filter holes can be removed, rapid cleaning of the filter holes is achieved, and the service life of the filter holes is prolonged. Unsmooth ventilation caused by blockage of large particles in the filter holes is avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to tail gas treatment technical field, especially relate to a COSCR denitration carbon removal and noise reduction device. BACKGROUND

[0002] The COSCR denitration carbon removal and noise reduction device is a key equipment in the field of industrial tail gas treatment, which effectively reduces nitrogen oxides, carbon particles and noise in tail gas that harm the environment, reduces the pollution of tail gas to the atmospheric environment, and helps enterprises to meet the environmental emission standards.

[0003] However, the COSCR denitration carbon removal and noise reduction device has a large number of large particle impurities when in use. When the tail gas enters the device, these large particle impurities lack effective pre-filtering interception mechanism, so they will follow the airflow and hit the catalytic carrier. The internal pore structure of the catalytic carrier is fine and complex, which is originally designed to provide sufficient reaction surface area to promote efficient chemical reaction of denitration and carbon removal. However, the invasion of large particle impurities fills the internal pores of the catalytic carrier, which accumulates over time and blocks the airflow channel, resulting in reduced tail gas treatment efficiency.

[0004] In view of this, the present application provides a COSCR denitration carbon removal and noise reduction device to solve the above problems. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies in the prior art, the utility model aims to provide a COSCR denitration carbon removal and noise reduction device, which can effectively filter the large particles mixed in the tail gas when the tail gas enters the tail gas channel. The push ball rod equipped in the tail gas pretreatment mechanism can push the shaking ball to impact the filter plate, so that the large particles blocked in the filter hole can be removed, the filter hole can be quickly cleaned, and the problems in the above background technology can be solved.

[0006] The present application specifically adopts the following technical solutions to achieve the above purposes:

[0007] The application discloses a COSCR denitration and decarbonization and noise reduction device, which comprises a tail gas channel, a catalytic shell fixedly connected to the rear of the tail gas channel through a wind guide frame, a catalytic carrier installed in the catalytic shell, and a tail gas pretreatment mechanism arranged in the tail gas channel.

[0008] When the push ball rod is forced to move forward, the push ball rod can push the shaking ball to hit the filter plate, the shaking ball can shake off the large particles blocked in the filter hole, and the large particles are prevented from being blocked in the filter hole to cause poor ventilation.

[0009] As a preferred embodiment, the outer side of the cam is provided with a fixed frame, a center guide rod is fixedly installed in the stand frame, one end of the push ball rod penetrates through the center guide rod, and the diameters of the filter holes of the two groups of filter plates gradually decrease from left to right.

[0010] When the tail gas passes through the two groups of filter plates in sequence in the tail gas channel, the diameters of the filter holes of the two groups of filter plates gradually decrease from left to right, the large particles in the tail gas can pass through the filter holes with different diameters, and efficient secondary fine filtration is realized.

[0011] As a preferred embodiment, the outer side of the cam is provided with a fixed frame, a center guide rod is fixedly installed in the stand frame, one end of the push ball rod penetrates through the center guide rod, and the diameters of the filter holes of the two groups of filter plates gradually decrease from left to right.

[0012] When the push ball rod is pushed, the forward thrust of the push ball rod also drives the linkage rod to move forward, the linkage rod slides linearly along the guide hole along the path defined by the guide rod, and the long spring is pulled to be stretched.

[0013] As a preferred embodiment, the outer side of the cam is provided with a fixed frame, a center guide rod is fixedly installed in the stand frame, one end of the push ball rod penetrates through the center guide rod, and the diameters of the filter holes of the two groups of filter plates gradually decrease from left to right.

[0014] As a preferred implementation, a plurality of groups of ventilation holes are formed in the catalytic carrier, the inner and outer surfaces of the catalytic carrier are attached with a catalyst layer, one side of the catalytic shell is fixedly provided with an air outlet cylinder, the catalyst layer is a metal oxide catalyst, one side of the catalytic shell is fixedly provided with a support, and a fan is installed in the air guide frame.

[0015] Through the above technical solution, the metal oxide catalyst is used for tail gas denitration mainly through a selective catalytic reduction reaction, ammonia is used as a reducing agent, nitrogen oxides react with ammonia to generate nitrogen and water, and the variable valence state of metal ions can also remove nitrogen oxides through an oxidation-reduction reaction. Carbon removal is that carbon particles in the tail gas are oxidized under the action of the catalyst, the catalyst reduces the carbon oxidation reaction activation energy, carbon and active oxygen species react to generate carbon dioxide, and carbon particle oxidation energy provides active sites and heat for denitration, and through the synergistic effect, the denitration and carbon removal of the tail gas are realized.

[0016] As a preferred implementation, the tail gas passage is composed of an inner layer of metal material, a sound insulation layer, and an outer layer of metal material, the sound insulation layer with a honeycomb hole structure is arranged between the inner layer and the outer layer, and the sound insulation layer is made of sound insulation cotton.

[0017] Through the above technical solution, the sound insulation layer has good sound insulation effect, and the design of the sound insulation layer can block the noise generated in the denitration and carbon removal process, so that sound insulation and noise reduction are realized.

[0018] As a preferred implementation, a large particle treatment mechanism is arranged below the tail gas passage, the large particle treatment mechanism comprises a guide box fixed below the tail gas passage, a discharge port is formed in the lower surface of the tail gas passage, a guide plate with a right angle structure is fixedly installed on one side below the guide box, and an inlet is arranged on one side below the guide plate.

[0019] Through the above technical solution, when the large particles are shaken off, the particles that are shaken off and fall can fall downward and fall into the guide box through the discharge port. The particles entering the guide box slide to the inlet under the guidance of the guide plate and then fall into the forming cavity.

[0020] As a preferred implementation, a bottom box is fixedly installed below the guide box, a forming cavity is formed in one side of the inside of the bottom box, a hydraulic cylinder is installed on the other side of the inside of the bottom box, a pressing plate is arranged on one side of the inside of the forming cavity, the hydraulic cylinder is fixedly connected with the pressing plate through a piston rod, a material taking box door is hingedly connected on the rear side of one side of the bottom box, and the position of the material taking box door corresponds to the position of the forming cavity.

[0021] Through the above technical solution, the hydraulic cylinder is started, the hydraulic cylinder drives the piston rod to move forward, and the loose and accumulated particles in the forming cavity are extruded into compacted materials by the pressing plate.

[0022] The beneficial effects of the present application are as follows:

[0023] 1. The tail gas pretreatment mechanism can effectively filter the mixed large particles in the tail gas when the tail gas just enters the tail gas passage, so that the mixed large particles in the tail gas are not easy to enter the catalytic carrier, thereby preventing the catalytic carrier from being blocked by the accumulation of large particles and affecting the tail gas treatment efficiency.

[0024] 2. The large particle treatment mechanism is provided, and the large particles cleaned after the tail gas filtration can fall into the forming cavity. In this process, the power provided by the hydraulic cylinder drives the pressing plate to move in the forming cavity, the pressing plate applies pressure to the accumulated large particles in the forming cavity, so that the large particles are tightly adhered and then extruded into a regular and compact shape, facilitating the subsequent collection and storage of the large particles. Since the carbon content in the tail gas is high, the formed large particles can be easily burned and utilized. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0026] Figure 1 It is a whole structure schematic diagram of the present application of a COSCR denitration and carbon removal noise reduction device.

[0027] Figure 2 It is a structure schematic diagram of the present application of a COSCR denitration and carbon removal noise reduction device in the tail gas passage front view.

[0028] Figure 3 It is a structure schematic diagram of the present application of a COSCR denitration and carbon removal noise reduction device in the tail gas and treatment mechanism.

[0029] Figure 4 It is a structure schematic diagram of the present application of a COSCR denitration and carbon removal noise reduction device in the tail gas and treatment mechanism. Figure 3

[0030] Figure 5 It is a structure schematic diagram of the present application of a COSCR denitration and carbon removal noise reduction device in the tail gas and treatment mechanism.

[0031] ​Figure 6 It is a structure schematic view of the air guide frame and the fan in the COSCR denitration and carbon removal noise reduction device.

[0032] Figure 7 It is a structure schematic view of the side view section of the large particle processing mechanism in the COSCR denitration and carbon removal noise reduction device.

[0033] Figure 8 It is a structure schematic view of the side view section of the tail gas passage in the COSCR denitration and carbon removal noise reduction device.

[0034] In the figure, 1, tail gas passage; 11, inner layer; 12, sound insulation layer; 13, outer layer; 2, large particle processing mechanism; 21, material guide box; 22, discharge port; 23, material guide plate; 24, feeding port; 25, forming cavity; 26, bottom box; 27, hydraulic cylinder; 28, pressure applying plate; 3, air guide frame; 4, catalytic shell; 5, air outlet cylinder; 6, support; 7, tail gas pretreatment mechanism; 71, motor; 72, fixed frame; 73, air filter plate; 74, vertical frame; 75, connecting rod; 76, short spring; 77, connecting plate; 78, rotating shaft; 79, cam; 710, wheel frame; 711, rotating wheel; 712, ball pushing rod; 713, central guide rod; 714, linkage rod; 715, guide rod; 716, long spring; 717, falling ball; 8, catalytic carrier; 9, fan. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0036] Please refer to Figures 1 to 8The application discloses a COSCR denitration and decarbonization and noise reduction device, which comprises a tail gas channel 1, a catalytic shell 4 fixedly connected to the rear of the tail gas channel 1 through a wind guide frame 3, a catalytic carrier 8 installed in the catalytic shell 4, and a tail gas pretreatment mechanism 7 arranged in the tail gas channel 1.

[0037] When the push ball rod 712 is forced to move forward, the push ball rod 712 can push the shock ball 717 to hit the filter plate 73, and the shock ball 717 can shake off the large particles blocked in the filter holes, so that the large particles are prevented from being blocked in the filter holes and causing poor ventilation.

[0038] The outer side of the cam 79 is provided with a fixed frame 72, the inner side of the vertical frame 74 is fixedly provided with a center guide rod 713, one end of the push ball rod 712 penetrates through the center guide rod 713, and the diameters of the two groups of filter holes gradually decrease from left to right.

[0039] The tail gas passes through the two groups of filter plates 73 in sequence in the tail gas channel 1, the diameters of the filter holes of the two groups of filter plates 73 gradually decrease from left to right, the large particles in the tail gas can pass through the filter holes with different diameters, and efficient secondary fine filtration is realized.

[0040] One side of the wheel frame 710 is provided with a linkage rod 714, the linkage rod 714 is fixedly connected with the push ball rod 712, a group of guide holes are arranged at the upper end and the lower end of the linkage rod 714 respectively, a guide rod 715 is arranged in each guide hole, one end of the guide rod 715 is fixedly connected with the vertical frame 74, the other end of the guide rod 715 is fixedly connected with the fixed frame 72, two groups of long springs 716 are arranged on one side of the linkage rod 714, the long springs 716 are located outside the guide rod 715, one end of the long spring 716 is fixedly connected with the linkage rod 714, and the other end of the long spring 716 is fixedly connected with the fixed frame 72.

[0041] When the push ball rod 712 is pushed, the forward thrust of the push ball rod 712 also drives the linkage rod 714 to move forward, the linkage rod 714 slides linearly along the guide holes along the path defined by the guide rod 715, and the long spring 716 is pulled and stretched.

[0042] The motor 71 is installed above the tail gas passage 1, the output shaft of the motor 71 is fixedly connected with the rotating shaft 78, and the fixed frame 72 and the vertical frame 74 are fixedly connected with the inner wall of the tail gas passage 1.

[0043] A plurality of groups of ventilation holes are arranged in the catalytic carrier 8, and a catalyst layer is attached to the inner and outer surfaces of the catalytic carrier 8; the catalytic shell 4 is fixedly installed with an air outlet cylinder 5 on one side; the catalyst layer is a metal oxide catalyst; the catalytic shell 4 is fixedly installed with a support 6 on one side; and a fan 9 is installed in the air guide frame 3.

[0044] The metal oxide catalyst is mainly used for the denitration of tail gas through a selective catalytic reduction reaction, in which ammonia is used as a reducing agent to make nitrogen oxides react with ammonia to generate nitrogen and water; and the variable valence state of metal ions can also remove nitrogen oxides through an oxidation-reduction reaction. The carbon removal is that carbon particles in the tail gas are oxidized under the action of the catalyst, the catalyst reduces the carbon oxidation reaction activation energy, makes the carbon and active oxygen species react to generate carbon dioxide, and the carbon particle oxidation energy provides active sites and heat for the denitration, and through the synergistic effect, the denitration and carbon removal of the tail gas are realized.

[0045] The tail gas passage 1 is composed of an inner layer 11, a sound insulation layer 12 and an outer layer 13 made of metal, the sound insulation layer 12 with a honeycomb hole structure is arranged between the inner layer 11 and the outer layer 13, and the sound insulation layer 12 is made of sound insulation cotton.

[0046] The sound insulation layer 12 has good sound insulation effect, and in the tail gas treatment process, the design of the sound insulation layer 12 can block the noise generated in the denitration and carbon removal process, so as to realize sound insulation and noise reduction.

[0047] The tail gas passage 1 is provided below with a large particle treatment mechanism 2, which comprises a guide box 21 fixed below the tail gas passage 1, a lower discharge port 22 is arranged on the lower surface of the tail gas passage 1, a guide plate 23 with a right angle structure is fixedly installed on one side below the guide box 21, and an inlet 24 is arranged on one side below the guide plate 23.

[0048] When the large particles are shaken off, the particles that are shaken off and fall can fall downward and fall into the guide box 21 through the lower discharge port 22. The particles entering the guide box 21 slide to the inlet 24 under the guidance of the guide plate 23, and then fall into the forming cavity 25.

[0049] The bottom box 26 is fixedly installed below the guide box 21, a forming cavity 25 is arranged on one side in the bottom box 26, a hydraulic cylinder 27 is installed on the other side in the bottom box 26, a pressing plate 28 is arranged on one side in the forming cavity 25, the hydraulic cylinder 27 is fixedly connected with the pressing plate 28 through a piston rod, a material taking box door is hingedly connected on one side at the back of the bottom box 26, and the position of the material taking box door corresponds to the position of the forming cavity 25.

[0050] The hydraulic cylinder 27 is started, and the hydraulic cylinder 27 drives the piston rod to advance, and drives the pressing plate 28 to extrude the loose and accumulated particles into compacted materials in the forming cavity 25.

[0051] In specific use, the working principle of the utility model is as follows:

[0052] In the tail gas treatment, the fan 9 is started, and the fan 9 generates suction force to guide the tail gas into the tail gas channel 1. The tail gas will pass through two groups of filter plates 73 in turn, the filter hole diameters of the two groups of filter plates 73 decrease from left to right, and the large particles in the tail gas can pass through the filter holes with different diameters to realize efficient secondary fine filtration. Through this step, the tail gas is purified, and the risk of subsequent catalytic carrier 8 blockage caused by mixing of large particles is reduced. The tail gas that successfully passes through the secondary filtration of the filter plate 73 is guided into the catalytic carrier 8 under the continuous action of the fan 9. The catalytic carrier 8 has a metal oxide catalyst layer, so that the tail gas can realize denitration and carbon removal when contacting and reacting with the catalyst layer, complete tail gas purification, and finally be discharged outward through the air outlet 5. In the tail gas treatment process, the design of the sound insulation layer 12 can block the noise generated in the denitration and carbon removal link to achieve sound insulation and noise reduction.

[0053] When the tail gas filtration is completed, due to the inclined installation mode of the filter plate 73, the large particles attached to the surface thereof will slide downward under the action of gravity. In order to ensure that the filter hole remains unblocked, the motor 71 is started, and the motor 71 can drive the rotating shaft 78 to rotate, and then drive the cam 79 to rotate. When the cam 79 rotates, the protruding part thereof will press the rotating wheel 711, and the rotating wheel 711 not only can smoothly contact and rotate with the cam 79, but also can transmit the thrust to the push ball rod 712 through the wheel frame 710. The push ball rod 712 is suddenly thrust forward under the force, pushes the falling ball 717 to hit the filter plate 73, the filter plate 73 is impacted and synchronously displaced forward, and the connecting plate 77 stretches the short spring 76. At the same time, the forward thrust of the push ball rod 712 also drives the linkage rod 714 to move forward, the linkage rod 714 slides along the guide hole along the path defined by the guide rod 715, and stretches and stretches the long spring 716. When the protruding part of the cam 79 rotates away and is separated from the rotating wheel 711, the long spring 716 and the short spring 76 immediately rebound, and drive the filter plate 73 and the falling ball 717 to return to the original position, respectively. Such a cycle is repeated, the falling ball 717 can continuously shake and fall the large particles blocked in the filter hole, avoid the large particles blocked in the filter hole to cause poor ventilation, and realize rapid cleaning of the large particles.

[0054] The large particles shaken off and dropped can drop downward and fall into the guide box 21 through the discharge port 22. The large particles entering the guide box 21 are guided by the guide plate 23 and slide to the inlet 24 and then fall into the forming cavity 25. When the large particles in the forming cavity 25 accumulate to a certain amount, the hydraulic cylinder 27 is started, the hydraulic cylinder 27 drives the piston rod to advance, and the pressing plate 28 is driven to press the loose accumulated large particles in the forming cavity 25 into compacted material. Subsequently, the material taking box door is opened, and the formed material can be taken out. Since the large particles in the tail gas are rich in carbon elements, this feature makes the formed material have good combustion utilization value.

[0055] The above merely describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A COSCR denitrification, carbon removal, and noise reduction device, comprising: The exhaust gas passage (1) is fixedly connected to the rear of the exhaust gas passage (1) by a guide frame (3) and a catalyst shell (4) is installed inside the catalyst shell (4). The exhaust gas passage (1) is characterized by having an exhaust gas pretreatment mechanism (7). The exhaust gas pretreatment mechanism (7) includes two sets of inclined filter plates (73) installed in the exhaust gas passage (1). A set of filter holes is opened through the plate surface of the two sets of filter plates (73). A shaking ball (717) is provided on one side of the filter plate (73). A pusher rod (712) is installed in the middle of the shaking ball (717). A wheel frame (710) is fixedly connected to the rear end of the pusher rod (712). A rotating wheel (711) is installed in the wheel frame (710). A cam (79) is provided on one side of the rotating wheel (711). A rotating shaft (78) is installed in the middle of the cam (79). Each of the two sets of air filter plates (73) is provided with a vertical frame (74) behind it. A set of short springs (76) is installed at each of the four corners of one side of the vertical frame (74). The front end of the short springs (76) is fixedly connected to a connecting rod (75) through a connecting plate (77). The front end of the connecting rod (75) is fixedly connected to the air filter plate (73).

2. The COSCR denitrification, decarbonization, and noise reduction device as described in claim 1, characterized in that: The cam (79) is provided with a fixed frame (72) on the outside, and a central guide rod (713) is fixedly installed inside the upright frame (74). One end of the push rod (712) passes through the central guide rod (713), and the aperture of the two sets of filter holes decreases from left to right.

3. The COSCR denitrification, decarbonization, and noise reduction device as described in claim 2, characterized in that: A linkage rod (714) is provided on one side of the wheel frame (710). The linkage rod (714) is fixedly connected to the push rod (712). A set of guide holes is provided at both the upper and lower ends of the linkage rod (714). A guide rod (715) is provided in the guide hole. One end of the guide rod (715) is fixedly connected to the upright frame (74), and the other end of the guide rod (715) is fixedly connected to the fixed frame (72). Two sets of long springs (716) are installed on one side of the linkage rod (714). The long springs (716) are located outside the guide rods (715). One end of the long springs (716) is fixedly connected to the linkage rod (714), and the other end of the long springs (716) is fixedly connected to the fixed frame (72).

4. The COSCR denitrification, decarbonization, and noise reduction device as described in claim 3, characterized in that: An electric motor (71) is installed above the exhaust gas passage (1). The output shaft of the electric motor (71) is fixedly connected to the rotating shaft (78). The fixed frame (72) and the upright frame (74) are both fixedly connected to the inner wall of the exhaust gas passage (1).

5. The COSCR denitrification, decarbonization, and noise reduction device as described in claim 4, characterized in that: The catalyst carrier (8) has multiple sets of ventilation holes. The catalyst carrier (8) has a catalyst layer attached to both its inner and outer surfaces. An exhaust pipe (5) is fixedly installed on one side of the catalyst shell (4). A bracket (6) is fixedly installed on one side of the catalyst shell (4). A fan (9) is installed inside the air guide frame (3).

6. The COSCR denitrification, decarbonization, and noise reduction device as described in claim 1, characterized in that: The exhaust gas passage (1) is composed of an inner layer (11) of metal, a sound insulation layer (12) and an outer layer (13) of metal. A honeycomb-structured sound insulation layer (12) is provided between the inner layer (11) and the outer layer (13). The material of the sound insulation layer (12) is sound insulation cotton.

7. The COSCR denitrification, decarbonization, and noise reduction device as described in claim 6, characterized in that: The exhaust gas channel (1) is provided with a large particulate matter treatment mechanism (2). The large particulate matter treatment mechanism (2) includes a guide box (21) fixed below the exhaust gas channel (1). The exhaust gas channel (1) has a discharge port (22) on its lower surface. A guide plate (23) with a right angle structure is fixedly installed on one side below the guide box (21). A feed port (24) is provided on one side below the guide plate (23).

8. The COSCR denitrification, decarbonization, and noise reduction device as described in claim 7, characterized in that: A bottom box (26) is fixedly installed below the guide box (21). A molding cavity (25) is opened on one side of the bottom box (26). A hydraulic cylinder (27) is installed on the other side of the bottom box (26). A pressure plate (28) is provided on one side of the molding cavity (25). The hydraulic cylinder (27) is fixedly connected to the pressure plate (28) through a piston rod. A material picking box door is movably connected to the rear side of the bottom box (26) through a hinge. The position of the material picking box door corresponds to the position of the molding cavity (25).

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