A honeycomb protective cover for a catalyst unit

Abstract

The utility model discloses a honeycomb protective cover for a catalyst unit, which belongs to the technical field of protective covers, and includes a fixed plate, wherein the inner wall of the fixed plate is equipped with a plurality of cross bars, the outer surface of the cross bars is equipped with vertical bars, the ends of the vertical bars are connected to the fixed plate, and the interior of the fixed plate is equipped with a plurality of fixed frames, wherein the plurality of fixed frames are separated by cross bars and vertical bars, and the inner wall of the fixed frame is equipped with a honeycomb steel mesh. The honeycomb protective cover for a catalyst unit described in the utility model is provided with each honeycomb steel mesh separately, and each can be removed separately, and only the damaged honeycomb steel mesh needs to be removed, and other intact honeycomb steel meshes do not need to be replaced, thereby achieving the effect of reducing costs, thereby solving the problem that when the protective cover is partially damaged, the entire protective cover needs to be replaced, which is costly, and the protective cover cannot be disassembled and replaced, resulting in high costs.

Description

Technical Field

[0001] The utility model relates to the technical field of protective covers, in particular to a honeycomb protective cover for a catalyst unit. Background Art

[0002] SCR denitrification technology is a selective catalytic reduction technology that can efficiently denitrify flue gas. It can use reducing agents such as ammonia or urea to reduce nitrogen oxides in flue gas into nitrogen and water, thereby achieving the purpose of reducing atmospheric pollutant emissions. SCR technology has a high denitrification efficiency of more than 90%, and has no by-products and does not form secondary pollution. It has been widely used in thermal power generation, cement production, glass manufacturing, steel smelting and other industries.

[0003] During the operation of the SCR denitration catalyst, due to the scouring and corrosion of fly ash particles in the flue gas, the windward end of the catalyst unit is often susceptible to wear and damage, resulting in an increase in the flue gas pressure drop and a decrease in the denitration efficiency. Generally, the windward end is protected. After searching, a honeycomb protective cover for the catalyst unit with announcement number CN204799108U includes a panel, and the panel is provided with honeycomb openings matching the windward surface of the catalyst unit. The four sides of the panel are movably connected with side panels respectively. The protective cover is provided on the windward surface of the catalyst unit to ensure that when the flue gas pressure drop in the denitration system remains unchanged, the windward surface of the catalyst unit is protected from or less directly scourged and corroded by fly ash, thereby extending the service life of the SCR catalyst and reducing the operating cost.

[0004] The above scheme protects the windward end by setting up a honeycomb protective cover, thereby solving the problem of damage to the windward end of the catalyst unit. A honeycomb protective cover for a catalyst unit with announcement number CN206911125U further optimizes the above scheme, and solves the problem of inconvenient installation and disassembly through the cooperation of a slot, a block and a slider.

[0005] However, when the protective cover is partially damaged, the entire protective cover needs to be replaced, which is very costly. The protective cover cannot be disassembled and replaced, resulting in high costs. In order to solve this technical problem, the utility model proposes a honeycomb protective cover for a catalyst unit. Utility Model Content

[0006] The main purpose of the utility model is to provide a honeycomb protective cover for a catalyst unit, which can effectively solve the problems mentioned in the background technology.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0008] A honeycomb protective cover for a catalyst unit comprises a fixing plate, a plurality of cross bars are installed on the inner wall of the fixing plate, vertical bars are installed on the outer surface of the cross bars, the ends of the vertical bars are connected to the fixing plate, a plurality of fixing frames are arranged inside the fixing plate, the plurality of fixing frames are separated by cross bars and vertical bars, a honeycomb steel mesh is installed on the inner wall of the fixing frame, a limiting mechanism is arranged on the side of the fixing frame, a self-locking mechanism is arranged on the upper and lower parts of the fixing frame, and a removal mechanism is arranged on one side of the self-locking mechanism.

[0009] Preferably, sliding blocks are fixedly connected to both sides of the fixed frame, and round rods are fixedly connected to the upper surface and the lower surface of the fixed frame.

[0010] Preferably, the limiting mechanism comprises a sliding groove, a rotating groove is provided on one side of the sliding groove, and the sliding groove and the rotating groove are both opened inside the vertical rod.

[0011] Preferably, the outer surface of the sliding block is slidably connected to the sliding groove, and the outer surface of the sliding block is also slidably connected to the rotating groove.

[0012] Preferably, the self-locking mechanism includes a rectangular groove, which is opened inside the cross bar, and the inner wall of the rectangular groove is slidably connected with a bevel block, one side of the bevel block is fixedly connected with a spring, and one end of the spring away from the bevel block is fixedly connected to the cross bar.

[0013] Preferably, the dismantling mechanism includes a circular groove, which is opened in the cross bar between two rectangular grooves, and a rotating rod is arranged inside the circular groove, and the outer surface of the rotating rod is rotatably connected to the cross bar, and a knob is fixedly connected to one end of the rotating rod.

[0014] Preferably, a pull rope is fixedly connected to the outer surface of the rotating rod, and one end of the pull rope away from the rotating rod is fixedly connected to the inclined block.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] In the utility model, by setting components such as cross bars and dismantling mechanisms, when a honeycomb steel mesh is damaged, the dismantling mechanism drives the self-locking mechanism to release the fixation of the honeycomb steel mesh, and then rotates the honeycomb steel mesh to a horizontal state, so that the honeycomb steel mesh can be removed in the limiting mechanism. Each honeycomb steel mesh is separately set and each can be removed separately. Only the damaged honeycomb steel mesh needs to be removed, and there is no need to replace other intact honeycomb steel meshes, thereby achieving the effect of reducing costs, thereby solving the problem that when the protective cover is partially damaged, the entire protective cover needs to be replaced, which is costly, and the protective cover cannot be disassembled and replaced, resulting in high costs.

[0017] In the utility model, by arranging components such as a limit mechanism and a self-locking mechanism, the knob allows the pull rope to be wound around the outer surface, so that the inclined block no longer restricts the round rod, and the sliding block is rotated to a horizontal state, so that the sliding block slides outward at the sliding groove, thereby achieving the effect of easy disassembly. During installation, the sliding block is rotated inside the groove, and the round rod is blocked by the inclined block, thereby fixing the fixed frame and the honeycomb steel mesh, thereby achieving the effect of easy installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of a honeycomb protective cover for a catalyst unit of the utility model;

[0019] Figure 2 This is a schematic diagram of the three-dimensional structure of a honeycomb steel mesh in a honeycomb protective cover for a catalyst unit of the utility model;

[0020] Figure 3 It is a cross-sectional view of a neutral rod of a honeycomb protective cover for a catalyst unit of the utility model;

[0021] Figure 4 It is a three-dimensional structural schematic diagram of a round rod in a honeycomb protective cover for a catalyst unit of the utility model;

[0022] Figure 5 The utility model is a cross-sectional view of a cross bar in a honeycomb protective cover for a catalyst unit.

[0023] In the figure: 1. fixed plate; 2. cross bar; 3. vertical bar; 4. fixed frame; 5. honeycomb steel mesh; 6. limit mechanism; 601. sliding groove; 602. rotating groove; 7. self-locking mechanism; 701. rectangular groove; 702. inclined block; 703. spring; 8. removal mechanism; 801. round groove; 802. rotating rod; 803. knob; 804. pull rope; 9. round rod; 10. sliding block. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0025] like Figure 1-5 As shown, a honeycomb protective cover for a catalyst unit includes a fixed plate 1, the inner wall of the fixed plate 1 is installed with a plurality of cross bars 2, the outer surface of the cross bars 2 is installed with vertical bars 3, the ends of the vertical bars 3 are connected to the fixed plate 1, there are multiple vertical bars 3, the multiple vertical bars 3 are separated by multiple cross bars 2, only the upper surface of the uppermost vertical bar 3 and the lower surface of the lowermost vertical bar 3 are connected to the fixed plate 1, a plurality of fixed frames 4 are arranged inside the fixed plate 1, the multiple fixed frames 4 are separated by the cross bars 2 and the vertical bars 3, and the inner wall of the fixed frame 4 is installed with a honeycomb steel mesh 5.

[0026] A limiting mechanism 6 is provided on the side of the fixed frame 4. The limiting mechanism 6 is provided inside the vertical rod 3 and is located on the side of the fixed frame 4. Two limiting mechanisms 6 are provided on each fixed frame 4. The limiting mechanism 6 at the edge is provided inside the fixed plate 1. The connection method is the same as the connection method between the vertical rods 3. The limiting mechanism 6 includes a sliding groove 601. A rotating groove 602 is provided on one side of the sliding groove 601. The sliding groove 601 is connected to the rotating groove 602. The sliding groove 601 and the rotating groove 602 are both opened inside the vertical rod 3.

[0027] The upper and lower parts of the fixed frame 4 are both provided with self-locking mechanisms 7, which are arranged inside the cross bar 2. The self-locking mechanisms 7 in the top row are arranged inside the fixed plate 1, and the connection method is the same as the connection method between the cross bars 2. Their positions are located on the upper and lower sides of the fixed frame 4. Each fixed frame 4 corresponds to four self-locking mechanisms 7. The upper and lower surfaces of the fixed frame 4 are fixedly connected with round rods 9. The number of round rods 9 is the same as the number of self-locking mechanisms 7. The self-locking mechanism 7 includes a rectangular groove 701, and the rectangular groove 701 is opened. Located inside the cross bar 2, the inner wall of the rectangular groove 701 is slidably connected with an inclined block 702, one side of the inclined block 702 is provided with an inclined surface, one side of the inclined block 702 is fixedly connected with a spring 703, and the end of the spring 703 away from the inclined block 702 is fixedly connected to the cross bar 2, the whole spring 703 and a part of the inclined block 702 are located inside the rectangular groove 701, and a dismantling mechanism 8 is provided on one side of the self-locking mechanism 7. The number of the dismantling mechanism 8 is half of the self-locking mechanism 7, and the dismantling mechanism 8 is arranged between the two self-locking mechanisms 7.

[0028] The dismantling mechanism 8 includes a circular groove 801, which is opened in the cross bar 2 between the two rectangular grooves 701. A rotating rod 802 is arranged inside the circular groove 801. The outer surface of the rotating rod 802 is rotatably connected to the cross bar 2. One end of the rotating rod 802 is fixedly connected to a knob 803. The outer surface of the knob 803 is roughened. The outer surface of the rotating rod 802 is fixedly connected to a pull rope 804. The end of the pull rope 804 away from the rotating rod 802 is fixedly connected to the inclined block 702. There are two pull ropes 804, which can be connected to two inclined blocks 702 at the same time.

[0029] Sliding blocks 10 are fixedly connected to both sides of the fixed frame 4, and two sliding blocks 10 are respectively arranged on each fixed frame 4. The outer surface of the sliding block 10 is slidably connected to the sliding groove 601, and the outer surface of the sliding block 10 is also slidably connected to the rotating groove 602. The sliding block 10 is a flat block with different heights and widths. The thickness of the sliding groove 601 is greater than the width of the sliding block 10, but less than the height of the sliding block 10. When the sliding block 10 is in a horizontal state, it can slide through. When the sliding block 10 is in a vertical state, it can be blocked. The sliding block 10 can rotate inside the rotating groove 602.

[0030] It should be noted that in actual use, the device protects the catalyst unit through multiple honeycomb steel meshes 5. When a honeycomb steel mesh 5 is damaged, the knobs 803 above and below the damaged honeycomb steel mesh 5 are twisted, and the knobs 803 drive the pull rope 804 to wrap the pull rope 804 around the outer surface of the rotating rod 802. The pull rope 804 drives the inclined block 702 to slide into the inside of the rectangular groove 701, so that the inclined block 702 is away from the round rod 9, so that it no longer restricts the round rod 9, and then the honeycomb steel mesh 5 is rotated to make the fixed frame 4 drive the sliding block 10 to rotate inside the rotating groove 602, and the honeycomb steel mesh 5 is rotated to a horizontal state, thereby driving the sliding block 10 to rotate to a horizontal state, and pulling the fixed frame 4 to make the sliding block 10 slide outward at the sliding groove 601, so that the honeycomb steel mesh 5 is removed, achieving the effect of easy disassembly. At the same time, each honeycomb steel mesh 5 is separately arranged, and each can be removed separately. It is only necessary to remove the damaged honeycomb steel mesh 5, and there is no need to replace other intact honeycomb steel meshes 5, thereby achieving the effect of reducing costs.

[0031] During installation, first slide the sliding block 10 horizontally into the rotating groove 602, and rotate the fixed frame 4 90 degrees to drive the round rod 9 to squeeze the inclined block 702, so that the inclined block 702 moves toward the inside of the rectangular groove 701. When the round rod 9 passes over the inclined block 702, the inclined block 702 is reset under the action of the spring 703 to block the round rod 9, and then block the sliding block 10 through the rotating groove 602, thereby fixing the fixed frame 4 and the honeycomb steel mesh 5, thereby achieving the effect of facilitating installation.

[0032] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A honeycomb protective cover for a catalyst unit, comprising a fixing plate (1), characterized in that: The inner wall of the fixed plate (1) is installed with a plurality of cross bars (2), the outer surface of the cross bars (2) is installed with vertical bars (3), the ends of the vertical bars (3) are connected to the fixed plate (1), a plurality of fixed frames (4) are arranged inside the fixed plate (1), the plurality of fixed frames (4) are separated by the cross bars (2) and the vertical bars (3), a honeycomb steel mesh (5) is installed on the inner wall of the fixed frame (4), a limiting mechanism (6) is arranged on the side of the fixed frame (4), the upper and lower parts of the fixed frame (4) are both provided with self-locking mechanisms (7), and a dismantling mechanism (8) is arranged on one side of the self-locking mechanism (7).

2. The honeycomb protective cover for a catalyst unit according to claim 1, characterized in that: Both sides of the fixed frame (4) are fixedly connected with sliding blocks (10), and the upper surface and the lower surface of the fixed frame (4) are fixedly connected with round rods (9).

3. The honeycomb protective cover for a catalyst unit according to claim 2, characterized in that: The limiting mechanism (6) comprises a sliding groove (601), a rotating groove (602) is provided on one side of the sliding groove (601), and both the sliding groove (601) and the rotating groove (602) are arranged inside the vertical rod (3).

4. The honeycomb protective cover for a catalyst unit according to claim 3, characterized in that: The outer surface of the sliding block (10) is slidably connected to the sliding groove (601), and the outer surface of the sliding block (10) is also slidably connected to the rotating groove (602).

5. The honeycomb protective cover for a catalyst unit according to claim 4, characterized in that: The self-locking mechanism (7) comprises a rectangular groove (701), wherein the rectangular groove (701) is provided inside the cross bar (2), an inner wall of the rectangular groove (701) is slidably connected to an inclined block (702), a side surface of the inclined block (702) is fixedly connected to a spring (703), and an end of the spring (703) away from the inclined block (702) is fixedly connected to the cross bar (2).

6. The honeycomb protective cover for a catalyst unit according to claim 5, characterized in that: The dismantling mechanism (8) comprises a circular groove (801), the circular groove (801) being opened in the cross bar (2) at a position between the two rectangular grooves (701), a rotating rod (802) being arranged inside the circular groove (801), the outer surface of the rotating rod (802) being rotatably connected to the cross bar (2), and one end of the rotating rod (802) being fixedly connected to a knob (803).

7. The honeycomb protective cover for a catalyst unit according to claim 6, characterized in that: A pull rope (804) is fixedly connected to the outer surface of the rotating rod (802), and one end of the pull rope (804) away from the rotating rod (802) is fixedly connected to the inclined block (702).

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