Ultralow-temperature moving bed deacidification and denitration integrated reactor

Abstract

The invention relates to the technical field of reactor equipment, and provides an ultralow-temperature moving bed deacidification and denitration integrated reactor which comprises a reactor and a reaction bed in the reactor, a smoke inlet pipe is mounted through a limiting box above the reactor, and a pretreatment unit is arranged in the limiting box; the fixed frame and the upper closing frame above form a combined structure, the inner side of the fixed frame is provided with a circular through hole which is in butt joint with the smoke inlet pipe, and the inner side of the fixed frame, which is close to the upper end area, is provided with filter cloth which is used for intercepting dust particles contained in smoke so as to prevent the reaction bed from being blocked. Pretreatment can be carried out before deacidification and denitration of flue gas, particle impurities contained in the flue gas are fully removed, a reaction bed is effectively prevented from being blocked, the flue gas purification quality is ensured, in addition, the filtering mechanism can be cleaned in real time so as to maintain the impurity intercepting effect during long-time use, and the service life of the flue gas is prolonged. And finally, components in the pretreatment unit can be assembled, disassembled and replaced at any time, stable sealing is ensured during the period, air leakage is prevented, and the safety performance is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of reactor equipment, and more specifically, to an ultra-low temperature moving bed deacidification and denitration integrated reactor. Background Art

[0002] With the continuous development and progress of industrial technology, a large amount of flue gas will be generated in the process of industrial production. The flue gas contains a large amount of harmful components such as nitrate and acid. When it is directly discharged into the air or enters the next process, it is easy to cause serious impact. It is necessary to deacidify and denitrate the flue gas in time;

[0003] The deacidification and denitrification reactor is a device used to simultaneously remove acidic and nitrogen oxide pollutants from flue gas. This process is carried out at a relatively low temperature, has a high purification rate, and does not cause secondary pollution to the environment.

[0004] At present, in the actual application of the reactor, it is found that the reaction bed has a purification effect on harmful gases, but when encountering dust particles in the flue gas, it is very easy to get blocked, which not only affects the deacidification and denitrification effects, but also reduces the service life of the equipment, bringing difficulties to the subsequent deacidification and denitrification operations;

[0005] In order to solve the above problems, the present application proposes an ultra-low temperature moving bed deacidification and denitrification integrated reactor. Summary of the invention

[0006] The object of the present invention is to provide an ultra-low temperature moving bed deacidification and denitrification integrated reactor to solve the problems raised in the above-mentioned background technology.

[0007] The purpose of the present invention can be achieved through the following technical solutions:

[0008] An ultra-low temperature moving bed deacidification and denitration integrated reactor, comprising: a reactor and a reaction bed inside the reactor, a smoke inlet pipe is installed through a limit box above the reactor, and a pretreatment unit is arranged inside the limit box; a fixed frame forms a combined structure with an upper frame above, and a circular through hole is provided inside the smoke inlet pipe, and a filter cloth is installed on the inner side of the fixed frame adjacent to the upper end area to intercept dust particles contained in the flue gas to prevent clogging of the reaction bed; an extension pipe is located at the lower end of the smoke inlet pipe, and a fracture is opened inside the extension pipe for installing the circular structure inside the fixed frame, and the end face of the fracture is provided with a A sealed sealing gasket; an upper shaft frame, located at the center of the filter cloth, with an upper sealing frame and a lower sealing frame respectively arranged on the outer sides of its upper and lower ends, the upper sealing frame is provided with a brush plate inside, which is used to clean dust particles and store them inside the lower sealing frame; a sealing belt, located in the area of ​​the end away from the opening inside the limit box, used to seal the fracture when replacing the fixed frame and its components; a sliding seat, located on the front and rear inner walls of the limit box, with a slider slidably installed inside it, and a spring telescopic rod is provided inside the front and rear sides of the limit box to connect the slider, which is used to drive it to slide as the fixed frame is pulled out.

[0009] As a further optimization of the present invention, an adapter ring frame is sleeved on the outer side of the fixing frame, which is clamped by the upper frame to form a rotatable installation, and its outer side is a toothed structure that meshes with the gear on the left side of the fixing frame.

[0010] As a further optimization of the present invention, an inner ring frame is provided above the adapter ring frame for mounting an end of the upper sealing frame and the lower sealing frame away from the upper shaft frame.

[0011] As a further optimization of the present invention, pressure blocks are provided on both sides of the lower end of the brush plate, and the guide slopes on both sides of the bottom thereof press the filter cloth so that particles pass through the gaps thereof and fall into the interior of the lower sealing frame.

[0012] As a further optimization of the present invention, a transfer plate is further provided at the center of the filter cloth for rotatably mounting the upper and lower parts of the upper shaft frame, and the upper and lower parts of the upper shaft frame are connected as a whole by bolts.

[0013] As a further optimization of the present invention, a winding roller is provided inside the right end of the limit box, and the sealing belt is driven to be wound and released through a blocking pad on the rear side of the limit box.

[0014] As a further optimization of the present invention, a positioning roller is provided at the front end of the sliding block, and the movable end of the sealing belt is mounted through a blocking pad on the outer side thereof.

[0015] As a further optimization of the present invention, the sealing belt located at the right end of the limiting box is pulled upward by the support rod in the limiting box, so that the sealing belt is tightly attached to the sealing pad to form a seal after being unfolded.

[0016] As a further optimization of the present invention, the slide seat is tilted upward from right to left, and the elastic deformation of the blocking pad provides offset distance compensation when the positioning roller contacts the left side of the sealing pad, thereby ensuring the tight release of the sealing belt and the sealing pad.

[0017] As a further optimization of the present invention, when the reactor does not have an inlet sealing function, the sealing belt is installed in a vertically symmetrical distributed manner to seal the lower opening of the fracture.

[0018] Beneficial effects of the present invention:

[0019] The present invention installs a pretreatment unit at the flue gas inlet, so that dust particles in the flue gas can be intercepted by the filter cloth before entering the reaction bed, so as to prevent the flue gas from containing a large amount of dust particles to block the reaction bed, thereby ensuring its operation quality and extending its service life, and reducing the maintenance and replacement frequency, so as to save the equipment operation cost;

[0020] After the dust particles are intercepted, the gears are used to drive the upper sealing frame to rotate, and the dust particles are pressed into the lower sealing frame for storage through the guide slope, achieving a real-time cleaning effect, so that it can maintain a stable filtering effect during long-term operation. At the same time, the relative surfaces of the upper sealing frame and the lower sealing frame are always kept sealed during the rotation to prevent smoke from entering the interior;

[0021] The present invention utilizes the sealing of the stored particles and cooperates with the reverse force of the spring telescopic rod to directly draw the gear toward the opening of the limit box. At this time, the positioning roller drives the sealing belt to seal the fracture, so that the smoke inside the upper and lower ends of the smoke inlet pipe is blocked to prevent overflow. The replacement operation can be directly carried out, the operation is simple and convenient to use, and at the same time, the sealing of the smoke during the replacement operation is guaranteed to ensure safety performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 It is a schematic diagram of the overall appearance structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the internal structure of the upper end of the reactor of the present invention;

[0025] Figure 3 It is a schematic diagram of the internal structure of the limit box of the present invention;

[0026] Figure 4 It is a structural schematic diagram of the connection part between the smoke inlet pipe and the limit box of the present invention;

[0027] Figure 5 It is a schematic diagram of the structure of the fixing frame and its internal parts of the present invention;

[0028] Figure 6 It is a structural schematic diagram of the connection part between the upper shaft frame and the filter cloth of the present invention;

[0029] Figure 7 It is a schematic structural diagram of the connection part between the sealing belt and the limit box of the present invention;

[0030] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0031] In the figure: 100, reactor; 200, pretreatment unit;

[0032] 101. smoke inlet pipe; 102. limit box; 103. reaction bed;

[0033] 201, fixed frame; 202, upper shaft frame; 203, sealing belt; 204, extension tube; 205, slide seat;

[0034] 2011, upper frame; 2012, adapter ring frame; 2013, filter cloth; 2014, gear; 2015, inner ring frame;

[0035] 2021, upper sealing frame; 2022, lower sealing frame; 2023, brush plate; 2024, pressing block; 2025, guide slope; 2026, transfer plate;

[0036] 2031, winding roller; 2032, positioning roller; 2033, blocking pad;

[0037] 2041, fracture; 2042, sealing gasket;

[0038] 2051, slider; 2052, spring telescopic rod. DETAILED DESCRIPTION

[0039] 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.

[0040] See also Figure 1-7 The present invention provides an embodiment of an ultra-low temperature moving bed deacidification and denitration integrated reactor:

[0041] Specifically, an ultra-low temperature moving bed deacidification and denitration integrated reactor includes: a reactor 100 and a reaction bed 103 inside the reactor 100, a smoke inlet pipe 101 is installed through a limit box 102 above the reactor 100, and a pretreatment unit 200 is provided inside the limit box 102;

[0042] The fixing frame 201 forms a combined structure with the upper closing frame 2011 above, and the inner side is a circular through hole connected to the smoke inlet pipe 101. The inner side of the fixing frame 201 is adjacent to the upper end area and is installed with a filter cloth 2013 for intercepting dust particles contained in the smoke to prevent clogging of the reaction bed 103.

[0043] The extension tube 204 is located at the lower end of the smoke inlet tube 101, and has a cutout 2041 therein for mounting the circular structure inside the fixing frame 201. A sealing gasket 2042 is provided on the end surface of the cutout 2041;

[0044] The upper shaft frame 202 is located at the center of the filter cloth 2013, and an upper sealing frame 2021 and a lower sealing frame 2022 are respectively provided on the outer sides of the upper and lower ends thereof. A brush plate 2023 is provided inside the upper sealing frame 2021 to clean dust particles and store them inside the lower sealing frame 2022;

[0045] The sealing tape 203 is located in the region of the inner end of the limiting box 102 away from the opening, and is used to form a seal on the fracture 2041 when the fixing frame 201 and its components are replaced;

[0046] The slide seat 205 is located on the front and rear inner walls of the limit box 102, and a slider 2051 is slidably installed inside it. Spring telescopic rods 2052 are provided inside the front and rear sides of the limit box 102 to connect the slider 2051, which is used to drive it to slide following the withdrawal of the fixing frame 201.

[0047] The present embodiment provides a reaction device that can pre-treat flue gas to prevent clogging. The pre-interception effect of the filter cloth 2013 is used to ensure that no dust particles remain after the flue gas passes through, so as to ensure that the subsequent deacidification and denitrification reactions proceed stably. In addition, the upper sealing frame 2021 and the lower sealing frame 2022 are used to collect dust particles in real time to maintain the long-term use quality of the filter cloth 2013. Finally, after a certain period of adaptation, the fixing frame 201 can be directly pulled out, and the port 2041 can be sealed by the sealing belt 203, so as to achieve the effect of convenient replacement of the internal components of the pretreatment unit 200, while avoiding flue gas leakage to ensure safety performance.

[0048] Furthermore, an adapter ring frame 2012 is sleeved on the outer side of the fixed frame 201, and the outer side of the lower end thereof is a protruding annular structure, which is clamped inside by the upper frame 2011 to form a rotating installation, and the outer side of the protruding annular structure is a toothed structure that meshes with the gear 2014 on the left side of the fixed frame 201, and is driven to rotate by the micro motor on the left side of the fixed frame 201.

[0049] Furthermore, an inner ring frame 2015 is provided above the adapter ring frame 2012 for mounting an end of the upper sealing frame 2021 and the lower sealing frame 2022 away from the upper shaft frame 202 , and at the same time, the upper sealing frame 2021 is used to transmit the rotational power to the adapter ring frame 202 .

[0050] Furthermore, pressure blocks 2024 are provided on both sides of the lower end of the brush plate 2023, and the guide slopes 2025 on both sides of the bottom thereof press against the filter cloth 2013 so that particles pass through the gaps thereof and fall into the interior of the lower sealing frame 2022, thereby effectively preventing dust particles from gathering above the filter cloth 2013 and ensuring a stable filtering effect during subsequent use.

[0051] Furthermore, a transfer plate 2026 is provided at the center of the filter cloth 2013 for rotatably mounting the upper and lower parts of the upper shaft frame 202. The upper and lower parts of the upper shaft frame 202 are connected as a whole by bolts, so that the upper sealing frame 2021 and the lower sealing frame 2022 rotate simultaneously to ensure that the two openings are aligned with each other.

[0052] Furthermore, a winding roller 2031 is provided inside the right end of the limiting box 102 , and the sealing belt 203 is driven to be wound and released through a blocking pad 2033 on the rear side inside the limiting box 102 .

[0053] Furthermore, a positioning roller 2032 is provided at the front end of the slider 2051, and the movable end of the sealing belt 203 is installed through the blocking pad 2033 on the outer side thereof.

[0054] Furthermore, the sealing belt 203 located at the right end of the limit box 102 is pulled upward by the support rod in the limit box 102, so that the sealing belt 203 is tightly fitted with the sealing gasket 2042 to form a seal after being unfolded, ensuring that the external force is stable during sealing and avoiding looseness and leakage.

[0055] Furthermore, the slide 205 is tilted upward from right to left, and the elastic deformation of the blocking pad 2033 provides offset distance compensation when the positioning roller 2032 contacts the left side of the sealing pad 2042, thereby ensuring that the sealing belt 203 and the sealing pad 2042 are tightly released.

[0056] Furthermore, when the reactor 100 does not have an inlet sealing function, the sealing belt 203 is installed in a vertically symmetrical distributed manner to seal the lower opening of the fracture 2041 .

[0057] It can be understood that the present invention can perform pretreatment on the flue gas before deacidification and denitrification, fully remove the particulate impurities it contains, effectively prevent the clogging of the reaction bed 103, so as to ensure the quality of its flue gas purification. In addition, the filter mechanism can be cleaned in real time to maintain the impurity interception effect during long-term use. Finally, the components in the pretreatment unit 200 can be assembled, disassembled and replaced at any time, and ensure that the seal is stable during this period to prevent leakage and ensure safety performance.

[0058] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "around" and the like indicate orientation or positional relationship, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0059] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An ultra-low temperature moving bed deacidification and denitration integrated reactor, characterized in that: include: The reactor (100) and the reaction bed (103) therein are provided with a smoke inlet pipe (101) through a limiting box (102) above the reactor (100), and a pretreatment unit (200) is provided inside the limiting box (102); The fixing frame (201) forms a combined structure with the upper closing frame (2011) above, and has a circular through hole on the inner side thereof connected to the smoke inlet pipe (101). A filter cloth (2013) is installed on the inner side of the fixing frame (201) adjacent to the upper end area thereof, and is used to intercept dust particles contained in the smoke to prevent clogging of the reaction bed (103); The extension tube (204) is located at the lower end of the smoke inlet tube (101), and is provided with a fracture (2041) inside thereof for mounting the circular structure inside the fixing frame (201), and the end surface of the fracture (2041) is provided with a sealing gasket (2042); An upper shaft frame (202) is located at the center of the filter cloth (2013), and an upper sealing frame (2021) and a lower sealing frame (2022) are respectively provided on the outer sides of the upper and lower ends thereof, and a brush plate (2023) is provided inside the upper sealing frame (2021) for cleaning dust particles and storing them inside the lower sealing frame (2022); A sealing strip (203) is located in a region of the interior of the limiting box (102) away from the end of the opening and is used to form a seal on the fracture (2041) when the fixing frame (201) and its components are replaced; The slide seat (205) is located on the inner walls of the front and rear sides of the limit box (102), and a slider (2051) is slidably installed inside the slide seat (205). The front and rear sides of the limit box (102) are provided with spring telescopic rods (2052) connected to the slider (2051) to drive it to slide along with the withdrawal of the fixing frame (201).

2. The ultra-low temperature moving bed deacidification and denitration integrated reactor according to claim 1, characterized in that: The outer side of the fixing frame (201) is sleeved with an adapter ring frame (2012), which is clamped by the upper frame (2011) to form a rotatable installation, and the outer side of the adapter ring frame is a toothed structure that meshes with a gear (2014) on the left side of the fixing frame (201).

3. The ultra-low temperature moving bed deacidification and denitration integrated reactor according to claim 2, characterized in that: A filter cloth (2013) is provided above the adapter ring frame (2012) for mounting an end of the upper sealing frame (2021) and a lower sealing frame (2022) away from the upper shaft frame (202).

4. The ultra-low temperature moving bed deacidification and denitration integrated reactor according to claim 1, characterized in that: Pressing blocks (2024) are provided on both sides of the lower end of the brush plate (2023), and the guide slopes (2025) on both sides of the bottom thereof press against the filter cloth (2013) so that particles pass through the gaps therein and fall into the interior of the lower sealing frame (2022).

5. The ultra-low temperature moving bed deacidification and denitration integrated reactor according to claim 1, characterized in that: A transfer plate (2026) is also provided at the center of the filter cloth (2013) for rotatably mounting the upper and lower parts of the upper shaft frame (202), wherein the upper and lower parts of the upper shaft frame (202) are connected as one by bolts.

6. The ultra-low temperature moving bed deacidification and denitration integrated reactor according to claim 1, characterized in that: A winding roller (2031) is provided inside the right end of the limit box (102), and the sealing belt (203) is driven to be wound and released through a blocking pad (2033) at the rear side of the limit box (102).

7. The ultra-low temperature moving bed deacidification and denitration integrated reactor according to claim 1, characterized in that: The front end of the slider (2051) is provided with a positioning roller (2032), and the movable end of the sealing belt (203) is installed through the blocking pad (2033) on the outside thereof.

8. The ultra-low temperature moving bed deacidification and denitration integrated reactor according to claim 1, characterized in that: The sealing belt (203) located at the right end of the limiting box (102) is pulled upward by the support rod in the limiting box (102), so that the sealing belt (203) is tightly attached to the sealing pad (2042) to form a seal after being unfolded.

9. The ultra-low temperature moving bed deacidification and denitration integrated reactor according to claim 1, characterized in that: The slide seat (205) is tilted upward from right to left, and provides offset distance compensation when the positioning roller (2032) contacts the left side of the sealing pad (2042) through the elastic deformation of the blocking pad (2033), thereby ensuring close contact between the sealing belt (203) and the sealing pad (2042).

10. The ultra-low temperature moving bed deacidification and denitration integrated reactor according to claim 1, characterized in that: When the reactor (100) does not have an inlet sealing function, the sealing belt (203) is installed in a vertically symmetrical distributed manner and is used to seal the lower opening of the fracture (2041).

Images