Chemical plant waste gas treatment equipment

Abstract

The invention belongs to the technical field of waste gas treatment, and discloses chemical plant waste gas treatment equipment which comprises a tower body and a plurality of mounting frames slidably extending into the tower body, and limiting assemblies are arranged in the mounting frames; the limiting assembly comprises a plurality of supporting blocks vertically and slidably connected into the mounting frame and a plurality of limiting blocks slidably penetrating through the side wall of the mounting frame, second springs are fixedly connected between the bottoms of the supporting blocks and the mounting frame, and a plurality of through grooves are formed in the side wall of the mounting frame; and the multiple limiting blocks are slidably connected into the multiple through grooves correspondingly, multiple third springs are transversely and fixedly mounted between the inner sides of the multiple limiting blocks and the mounting frame, and the ends, close to the outer side of the mounting frame, of the multiple limiting blocks are provided with third slopes in sliding fit with the tower body. When the filter screen and the filler structure are mounted, the filter screen and the filler structure only need to extend into the mounting frame in a sliding mode, automatic limiting can be achieved, operation is easy, and efficiency is high.

Description

Technical Field

[0001] The invention belongs to the technical field of waste gas treatment, and in particular relates to waste gas treatment equipment for a chemical plant. Background Art

[0002] Waste gas treatment in chemical plants is often carried out through a scrubber. The scrubber is provided with a filter layer, a scrubber layer and a demisting layer from bottom to top. Fillers are stacked in the scrubber layer and the demisting layer. The fillers are placed in a random pile between the filler support net and the filler pressure net. The filler in the scrubber layer allows the liquid spraying downward and the gas rising to fully contact the gas-liquid phase to achieve adsorption or reaction to achieve purification. The filler in the demisting layer is used to capture the droplets attached to the gas to achieve drying. The filter layer filters the particulate waste adsorbed by the spray liquid through the filter screen to avoid clogging the liquid pump to achieve liquid circulation. The filter screen, the filler support net and the pressure net in the scrubber of the existing waste gas treatment equipment are directly fixed in the tower by multiple bolts, which is troublesome to operate and has low efficiency. When replacing and repairing, the operator needs to drill into the tower to operate, which has safety hazards. In addition, the spray liquid and the adsorbed impurities are easily attached to the filler in a fixed state, resulting in clogging of the filler layer, which makes the cleaning frequency of the filler layer high, affecting the waste gas treatment efficiency. Summary of the invention

[0003] The object of the present invention is to provide a waste gas treatment device for a chemical plant, so as to solve the problems of the inconvenient installation of the filter screen and the packing layer and the high cleaning frequency of the packing layer in the existing waste gas treatment device for a chemical plant.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A waste gas treatment device for a chemical plant, comprising a tower body and a plurality of installation frames slidingly extending into the tower body, wherein each of the plurality of installation frames is provided with a limit assembly, and the plurality of installation frames are, from bottom to top, a filter frame, a washing frame and a demisting frame, wherein a filter screen is installed in the limit assembly in the filter frame, and a packing structure is installed in the limit assembly in the washing frame and the demisting frame respectively;

[0006] The limit assembly includes multiple support blocks vertically slidably connected to the installation frame and multiple limit blocks sliding through the side walls of the installation frame, multiple bottoms of the support blocks are fixedly connected to the installation frame with a second spring, multiple through slots are provided on the side walls of the installation frame, multiple limit blocks are respectively slidably connected to the multiple through slots, multiple third springs are horizontally fixedly installed between the inner sides of the limit blocks and the installation frame, multiple limit blocks are provided with a third inclined surface slidingly matched with the tower body at one end close to the outer side of the installation frame, multiple limit blocks are provided with a second inclined surface at the other end, multiple limit blocks have their ends located at the top of the second inclined surface with protrusions fixedly installed, and multiple protrusions have their tops provided with a first inclined surface.

[0007] Preferably, a rotating rod is rotatably connected in the installation frame, and a plurality of rotating blocks are fixedly installed on the rotating rod. A plurality of the limit blocks are each provided with a groove on the top. The plurality of rotating blocks are located one by one above the plurality of grooves, and the ends of the rotating blocks are rotatably extended into the grooves and rotatably interfere with the side walls of the grooves.

[0008] Preferably, a pressure rod is slidably connected in the installation frame, a first spring is fixedly connected between the bottom of the pressure rod and the installation frame, a sliding groove is provided on the pressure rod, a pull rod is fixedly installed on one side of the rotating rod, and one end of the pull rod is slidably fitted in the sliding groove.

[0009] Preferably, it also includes an exhaust pipe passing through and fixed on the top of the tower body and an air intake pipe passing through and fixed on one side of the tower body, wherein the air intake pipe is located between the filter frame and the washing frame, and a nozzle is fixedly provided in the tower body between the washing frame and the demisting frame, and a plurality of atomizing nozzles are fixedly installed at the bottom of the nozzle.

[0010] Preferably, a water tank is fixedly installed on one side of the tower body, and the water tank is communicated with the bottom of the tower body, and a liquid pump and a liquid infusion tube are connected in sequence between the water tank and the spray pipe.

[0011] Preferably, two racks are symmetrically fixedly installed on both sides of the plurality of installation frames, and a plurality of gears respectively meshingly connected with the plurality of racks are rotatably provided on the tower body.

[0012] Preferably, the filler structure includes a support mesh, a pressure mesh, and a filler filled between the support mesh and the pressure mesh.

[0013] Preferably, a rotating shaft is rotatably provided on the tower body above the washing frame and the demisting frame, and a plurality of cams are fixedly mounted on the two rotating shafts, and the bottoms of the plurality of cams intermittently interfere with the top of the pressing net.

[0014] Preferably, a cleaning rack is slidably provided in the tower body above the filter frame, a plurality of connecting rods are rotatably connected between the two sides of the cleaning rack and the tower body, a plurality of brushes are fixedly installed at the bottom of the cleaning rack, and the bottoms of the plurality of brushes extend to the top of the filter screen.

[0015] Preferably, a turntable is rotatably provided in the tower body, an eccentric rod is fixedly installed at an eccentric position of the turntable, a guide groove is provided on one of the connecting rods, and the eccentric rod is slidably fitted in the guide groove.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] (1) The present invention provides an installation frame and a limit assembly. When installing a filter or a packing structure, it is only necessary to slide the filter or the packing structure into the installation frame and move the top of the filter or the packing structure to the bottom of the protrusion. Then, when the installation frame slides into the tower body, the tower body pushes the limit block to move through the third inclined surface, so that the second inclined surface on the limit block pushes the filter or the packing structure to push the support block downward and compress the second spring until the top of the filter or the packing structure moves to the bottom of the limit block. At this time, the end of the limit block contacts the inner wall of the tower body and cannot move. In this way, the filter or the packing structure is installed and limited in the installation frame. The operation is simple and efficient. In addition, the sliding installation frame does not require the operator to enter the tower for operation, which is safer.

[0018] (2) The present invention is provided with a protrusion, and the setting of the protrusion can pre-tighten the filter screen or the packing structure. During installation, the filter screen or the packing structure is pushed to the bottom of the protrusion. Under the elastic force of the third spring, the protrusion moves to the top of the filter screen or the packing structure for limiting, so that the subsequent limiting block can push the filter screen or the packing structure through the second inclined surface to achieve further limiting, thereby avoiding that the second inclined surface of the limiting block cannot conflict with the top of the filter screen or the packing structure when the filter screen or the packing structure is too thick, thereby facilitating the installation of filter screens or packing structures of different thicknesses and increasing the practicality of the equipment.

[0019] (3) The present invention is provided with a rotating block and a groove. When the filter or filler structure is taken out, the installation frame slides from the tower body, and the limit block moves outward under the elastic force of the third spring, so that the top of the filter or filler structure contacts the bottom of the protrusion. Then, the pressure rod is pressed down to make the slide groove drive the end of the pull rod to move downward, thereby driving the rotating rod to rotate, and then the rotating block is rotated, so that the rotating block pushes the side wall of the groove at the top of the limit block, so that the limit block continues to move outward and drives the protrusion to shrink into the through groove of the installation frame. At this time, the second spring and the support block lift the filter or filler structure upward for easy removal, which is simple to operate and highly efficient.

[0020] (4) The present invention is provided with a rotating shaft and a cam. The rotation of the rotating shaft drives the cam to rotate. When the outermost side of the cam rotates downward, the outermost side of the cam pushes the packing structure to press down the support block and the second spring. When the outermost side of the cam rotates upward, the elastic force of the second spring causes the packing structure to rise, thereby causing the packing structure to reciprocate up and down, realizing the vibration of the packing structure, so that impurities in the exhaust gas are captured by the spray liquid and then fall quickly, avoiding long-term attachment to the surface of the packing, thereby ensuring the gas passing efficiency, thereby reducing the shutdown frequency for cleaning and improving the exhaust gas treatment efficiency.

[0021] (5) The present invention is provided with a cleaning frame and a brush. When the turntable rotates, the eccentric rod is driven to rotate, thereby driving the corresponding connecting rod to make a fan-shaped reciprocating motion in the tower body through the guide groove, thereby driving the cleaning frame to make a fan-shaped reciprocating motion, so that the brush can reciprocate and clean the surface of the filter screen, thereby avoiding clogging of the filter screen and improving efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A perspective view of the present invention;

[0023] Figure 2 is a first cross-sectional view of the present invention;

[0024] Figure 3 is a second cross-sectional view of the present invention;

[0025] Figure 4 It is a stereogram of the installation frame assembly of the present invention;

[0026] Figure 5 It is a cross-sectional view of the assembly of the demisting frame of the present invention;

[0027] Figure 6 It is a three-dimensional diagram of the washing frame assembly of the present invention;

[0028] Figure 7 It is a cross-sectional view of the washing frame assembly of the present invention;

[0029] Figure 8 A three-dimensional diagram of the filter frame assembly of the present invention;

[0030] Fig. 9 It is a cross-sectional view of the filter frame assembly of the present invention;

[0031] Fig.10 for Fig. 9 A magnified image of point A;

[0032] Fig.11 It is a first cross-sectional view of a partial assembly of the limit block of the present invention;

[0033] Fig.12 A second cross-sectional view of a partial assembly of the limit block of the present invention;

[0034] Fig.13 A third cross-sectional view showing a partial assembly of the stop block of the present invention;

[0035] Fig.14 It is a stereogram of the assembly of the rotating rod of the present invention;

[0036] Fig.15 for Fig.14 The enlarged view of point B;

[0037] In the figure: 1-tower body, 2-filter frame, 3-washing frame, 4-demist frame, 5-exhaust pipe, 6-water tank, 7-gear, 8-pressure rod, 9-intake pipe, 10-connecting rod, 11-eccentric rod, 12-turntable, 13-rotating shaft, 14-cam, 15-pressing net, 16-supporting net, 17-spray pipe, 18-cleaning frame, 19-brush, 20-liquid pump, 21-filter screen, 22-support block, 23-limiting block, 24-rack, 25-first spring, 26-chute, 27-pull rod, 28-rotating rod, 29-rotating block, 30-groove, 31-first inclined plane, 32-bump, 33-second inclined plane, 34-second spring, 35-third inclined plane, 36-third spring. DETAILED DESCRIPTION

[0038] 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.

[0039] See also Figure 1-Figure 15 As shown, the present invention provides the following technical solutions:

[0040] A waste gas treatment device for a chemical plant, comprising a tower body 1 and a plurality of installation frames slidingly extending into the tower body 1, wherein each of the plurality of installation frames is provided with a limit assembly, and the plurality of installation frames are sequentially a filter frame 2, a washing frame 3 and a demisting frame 4 from bottom to top, a filter screen 21 is installed in the limit assembly in the filter frame 2, and a packing structure is installed in the limit assembly in the washing frame 3 and the demisting frame 4 respectively;

[0041] The limiting assembly includes a plurality of support blocks 22 vertically slidably connected to the installation frame and a plurality of limit blocks 23 slidingly passing through the side walls of the installation frame, a second spring 34 is fixedly connected between the bottom of the plurality of support blocks 22 and the installation frame, a plurality of through grooves are provided on the side walls of the installation frame, the plurality of limit blocks 23 are respectively slidably connected to the plurality of through grooves, a plurality of third springs 36 are transversely fixedly installed between the inner sides of the plurality of limit blocks 23 and the installation frame, a third inclined surface 35 slidably matched with the tower body 1 is provided at one end of the plurality of limit blocks 23 close to the outer side of the installation frame, a second inclined surface 33 is provided at the other end of the plurality of limit blocks 23, a protrusion 32 is fixedly installed at the end of the plurality of limit blocks 23 located at the top of the second inclined surface 33, and a first inclined surface 31 is provided at the top of the plurality of protrusions 32.

[0042] Based on the above disclosed structure, when installing the filter and filler structure:

[0043] When installing the filter 21 in the filter frame 2, the filter 21 is placed in the filter frame 2 and the filter 21 is pressed down. In the initial state of the third spring 36, the limit block 23 is located in the through groove and the protrusion 32 is located outside the through groove. The bottom of the filter 21 contacts the first inclined surface 31 at the top of the protrusion 32. The filter 21 pushes the protrusion 32 to move into the through groove through the first inclined surface 31. At the same time, the limit block 23 stretches the third spring 36. The bottom of the filter 21 presses down the support block 22 and compresses the second spring 34 until the top of the filter 21 moves to the bottom of the protrusion 32. At this time, the elastic force of the third spring 36 causes the limit block 23 to drive the protrusion 32 to slide out of the through groove, so that the filter 21 is moved to the bottom of the second spring 34. Under the action of elastic force, the top of the filter screen 21 contacts the bottom of the protrusion 32, and then the filter screen frame 2 slides into the tower body 1. The inner wall of the tower body 1 pushes the limit block 23 to slide toward the inner side of the filter screen frame 2 through the third inclined surface 35. At the same time, the second inclined surface on the limit block 23 pushes the filter screen 21 to move downward and pushes the support block 22 to press the second spring 34 until the outer side of the limit block 23 is completely retracted in the through groove. At this time, the top of the filter screen 21 moves to the bottom of the limit block 23, so that the filter screen 21 is clamped between the support block 22 and the limit block 23 through the second spring 34, so that it is limited in the filter screen frame 2 and slides into the tower body 1. The installation operation is simple and the efficiency is high.

[0044] When the packing structure is installed in the washing frame 3 and the demisting frame 4, the packing structure preferably includes a support net 16 and a pressing net 15 and a packing filled between the support net 16 and the pressing net 15. Based on this, the support net 16 is first slidably installed in the washing frame 3 and the demisting frame 4 from the top, and the support net 16 shrinks the protrusion 32 in the through groove through the first inclined surface 31, so that the support net 16 moves to the bottom of the limit block 23, and the support net 16 continues to move downward so that the bottom of the support net 16 is supported on multiple support blocks 22, and then the packing is placed on the support net 16 in a piled manner, and then the pressing net 15 is installed on the top of the packing, and the pressing net 15 slides from the top of the washing frame 3 and the demisting frame 4 so that the protrusion 32 shrinks in the through groove through the first inclined surface 31, and at the same time the limit block 23 stretches the third spring 36, and the pressing net 15 pushes the support net 16 through the packing to press the support block 22 and compress the second spring 34 until the pressing net 1 The top of the pressing net 15 moves to the bottom of the protrusion 32, at this time, the elastic force of the third spring 36 makes the limit block 23 drive the protrusion 32 to slide out of the through groove, so that under the elastic force of the second spring 34, the top of the pressing net 15 contacts the bottom of the protrusion 32, and then the washing frame 3 and the defogger frame 4 slide into the tower body 1, and the inner wall of the tower body 1 pushes the limit block 23 to slide toward the inner side of the washing frame 3 and the defogger frame 4 through the third inclined surface 35. At the same time, the second inclined surface on the limit block 23 pushes the pressing net 21 to move downward and pushes the support block 22 to press the second spring 34 through the filler and the support net 16 until the outer side of the limit block 23 is completely retracted in the through groove. At this time, the top of the pressing net 15 moves to the bottom of the limit block 23, so that the filler structure is clamped between the support block 22 and the limit block 23 through the second spring 34, so as to be limited in the washing frame 3 and the defogger frame 4, and slide into the tower body 1, the installation operation is simple and the efficiency is high.

[0045] In addition, two racks 24 are symmetrically fixedly installed on both sides of the multiple installation frames, and multiple gears 7 are rotatably provided on the tower body 1 and are respectively meshed and connected with the multiple racks 24. As mentioned above, the multiple installation frames are the filter frame 2, the washing frame 3 and the demisting frame 4, respectively. When the multiple gears 7 are driven to rotate respectively, the gears 7 are meshed and transmitted with the racks 24, so that the multiple racks 24 respectively drive the corresponding filter frame 2, the washing frame 3 and the demisting frame 4 to move, thereby reducing the labor intensity of the workers and improving the installation efficiency. Moreover, based on the sliding structure of the installation frame, the installation of the filter screen 21 and the packing structure can be carried out outside the tower body 1, and the operator does not need to enter the tower body 1, and the working environment is safer.

[0046] In addition, an exhaust pipe 5 is fixedly passed through the top of the tower body 1, an air intake pipe 9 is fixedly passed through one side of the tower body 1, the air intake pipe 9 is located between the filter frame 2 and the washing frame 3, a nozzle 17 is fixedly provided in the tower body 1 between the washing frame 3 and the demisting frame 4, and a plurality of atomizing nozzles are fixedly installed at the bottom of the nozzle 17; a water tank 6 is fixedly installed on one side of the tower body 1, and the water tank 6 is connected to the bottom of the tower body 1, and a liquid pump 20 and a liquid infusion tube are connected in sequence between the water tank 6 and the nozzle 17. Based on this, after the filter screen 21 and the packing structure are installed through the above process, the liquid pump 20 is started to pass the spray liquid in the water tank into the nozzle 17 through the liquid infusion pipe, and sprayed downward from the multiple atomizing nozzles at the bottom of the nozzle 17, and then the waste gas in the chemical plant is passed into the tower body 1 through the air inlet pipe 9. The waste gas gradually rises in the tower body 1 and passes through the packing structure in the washing frame 3. When the gas rises between the packings, the spray liquid descends in the packing, so that the waste gas and the spray liquid are fully contacted and reacted, so that the impurities in the waste gas are purified and adsorbed, and then the impurities fall with the droplets and gradually pass through the packing. The structure falls onto the filter 21, and the filter 21 separates the droplets and impurity particles to prevent the particles from falling into the bottom of the tower body 1, thereby preventing impurities from entering the water tank 6 and clogging the liquid pump, thereby realizing the circulation of the spray liquid. At the same time, the purified exhaust gas continues to rise until it enters and passes through the packing structure in the demisting frame 4, wherein some of the gas will carry some small droplets into the packing in the demisting frame 4, and when the gas carrying small droplets passes through the packing in the demisting frame 4, the small droplets are captured by the surface of the packing, thereby drying the purified exhaust gas and preventing the droplets from interfering with the static ring process of the subsequent equipment.

[0047] In addition, a liquid inlet pipe and a liquid outlet pipe are provided on the water tank 6. If the spray liquid participates in the reaction and is consumed, it can be replenished through the liquid inlet pipe to ensure the circulation of the spray liquid.

[0048] As mentioned above, regarding the disassembly of the filter screen 21 and the packing structure, it is preferred to have the following structure:

[0049] A rotating rod 28 is rotatably connected in the installation frame, and a plurality of rotating blocks 29 are fixedly installed on the rotating rod 28. A groove 30 is formed on the top of each of the plurality of limit blocks 23. The plurality of rotating blocks 29 are correspondingly located above the plurality of grooves 30, and the ends of the rotating blocks 29 are rotatably extended into the grooves 30 and rotatably contact the side walls of the grooves 30.

[0050] A pressure rod 8 is slidably connected in the installation frame, a first spring 25 is fixedly connected between the bottom of the pressure rod 8 and the installation frame, a slide groove 26 is provided on the pressure rod 8, a pull rod 27 is fixedly installed on one side of the rotating rod 28, and one end of the pull rod 27 is slidably fitted in the slide groove 26.

[0051] As can be seen from the above, when the filter screen 21 is disassembled, the filter screen frame 2 is slid out of the tower body 1. After the limit block 23 is moved out of the tower body 1, the limit block 23 moves outward along the through slot under the elastic force of the third spring 36 until the third spring 36 restores its initial length. At this time, the protrusion 32 is located outside the through slot. At the same time, the support block 22 pushes the filter screen 21 upward under the elastic force of the second spring 34, so that the top of the filter screen 21 contacts the bottom of the protrusion 32. At this time, the pressing rod 8 makes the pressing rod 8 moves downward and compresses the first spring 25, the slide groove 26 on the pressure rod 8 drives one end of the pull rod 27 to move downward, so that the pull rod 27 drives the rotating rod 28 to rotate, and then drives the rotating block 29 to rotate around the axis of the rotating rod 28, so that the rotating block 29 rotates and extends into the groove 30 on the limit block 23, and the side of the rotating block 29 pushes the side wall of the groove 30, thereby pushing the limit block to continue to move outward, so that the protrusion 32 is completely retracted in the through groove, and the filter screen 21 can be directly taken out from the top at this time;

[0052] Similarly, when disassembling the packing structure, the washing frame 3 and the demisting frame 4 are slid out of the tower body 1. After the limit block 23 is moved out of the tower body 1, the limit block 23 moves outward along the through groove under the elastic force of the third spring 36 until the third spring 36 restores its initial length. At this time, the protrusion 32 is located outside the through groove. At the same time, the support block 22 pushes the support net 16 upward under the elastic force of the second spring 34, so that the top of the packing pushes the pressing net 15 to contact the bottom of the protrusion 32. At this time, the pressing rod 8 moves down and The first spring 25 is compressed, and the slide groove 26 on the pressure rod 8 drives one end of the pull rod 27 to move downward, so that the pull rod 27 drives the rotating rod 28 to rotate, and then drives the rotating block 29 to rotate around the axis of the rotating rod 28, so that the rotating block 29 rotates and extends into the groove 30 on the limit block 23, and the side of the rotating block 29 pushes the side wall of the groove 30, thereby pushing the limit block to continue to move outward, so that the protrusion 32 is completely retracted in the through groove, and the pressing net 15 can be directly taken out from the top, and then the filler on the supporting net 16 can be taken out and replaced;

[0053] In addition, after disassembly, the pressure plate 8 is released, and the pressure plate 8 moves upward under the elastic force of the first spring 25, so that the slide groove 26 pushes one end of the pull rod 27 to move upward, thereby driving the rotating rod 28 to rotate in the opposite direction, so that the rotating block 29 rotates upward and moves out of the groove 30. At the same time, the limit block 23 is reset under the elastic force of the third spring 36, which is convenient for the direct installation of the filter screen 21 or the packing structure next time.

[0054] In addition, a rotating shaft 13 is rotatably provided above the washing frame 3 and the demisting frame 4 on the tower body 1 , and a plurality of cams 14 are fixedly mounted on the two rotating shafts 13 , and the bottoms of the plurality of cams 14 intermittently abut against the top of the pressing net 15 . Based on this, when the equipment is started, the two rotating shafts 13 are driven to rotate, and the two rotations respectively drive the multiple cams 14 to rotate. When the outermost side of the cam 14 contacts the top of the pressing net 15 and rotates downward, the cam 14 pushes the pressing net 15 to move downward, thereby driving the support net 16 to press the support block 22 and compress the second spring 34 through the filler, so that the packing structure moves downward as a whole. As the cam 14 continues to rotate, when the outermost side of the cam 14 contacts the top of the pressing net 15 and rotates upward, the elastic force of the second spring 34 causes the support block 22 to push the support net 16 to move upward, and drives the pressing net 15 to move upward through the filler, so that the packing structure moves upward as a whole. When the outermost side of the cam 14 does not contact the top of the pressing net 15, the packing structure is restricted between the limit block 23 and the support block 22, thereby realizing intermittent up and down reciprocating motion of the packing structure, thereby realizing the up and down vibration of the packing structure, so that the spray liquid drives the impurities to move downward quickly, ensures the smoothness of the packing structure, reduces the shutdown frequency of the packing structure, and improves the waste gas treatment efficiency.

[0055] In addition, a cleaning rack 18 is slidably provided above the filter frame 2 in the tower body 1, and a plurality of connecting rods 10 are rotatably connected between the two sides of the cleaning rack 18 and the tower body 1, and a plurality of brushes 19 are fixedly installed at the bottom of the cleaning rack 18, and the bottoms of the plurality of brushes 19 extend to the top of the filter screen 21; a turntable 12 is rotatably provided in the tower body 1, and an eccentric rod 11 is fixedly installed at an eccentric position of the turntable 12, and a guide groove is opened on one of the connecting rods 10, and the eccentric rod 11 slides in the guide groove. Based on this, when the equipment is started, the turntable 12 is driven to rotate, thereby driving the eccentric rod 11 to make eccentric rotation around the rotating shaft of the turntable 12, and at the same time, the eccentric rod 11 slides in the guide groove on the corresponding connecting rod 10, so that the connecting rod 10 makes a fan-shaped reciprocating motion around one end of the connecting rod 10, thereby driving the cleaning frame 18 to make a fan-shaped reciprocating motion in the tower body 1, so that the brush 19 at the bottom of the cleaning frame 18 cleans the top of the filter screen 21 back and forth, avoiding clogging of the filter screen, reducing the frequency of replacement and cleaning, and improving efficiency.

[0056] In addition, the two rotating shafts 13 and the shaft of the turntable 12 can be connected by belt transmission, so that they can be driven by a driving motor, thereby reducing the manufacturing cost of the equipment.

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

Claims

1. A chemical plant waste gas treatment equipment, characterized in that: It comprises a tower body (1) and a plurality of installation frames which slide into the tower body (1), wherein each of the plurality of installation frames is provided with a limit assembly, and the plurality of installation frames are, from bottom to top, a filter frame (2), a washing frame (3) and a demisting frame (4), wherein a filter screen (21) is installed in the limit assembly in the filter frame (2), and a packing structure is installed in the limit assembly in the washing frame (3) and the demisting frame (4); The limiting assembly comprises a plurality of support blocks (22) vertically slidably connected to the installation frame and a plurality of limit blocks (23) slidably penetrating the side wall of the installation frame; a second spring (34) is fixedly connected between the bottom of the plurality of support blocks (22) and the installation frame; a plurality of through slots are provided on the side wall of the installation frame; the plurality of limit blocks (23) are respectively slidably connected to the plurality of through slots; a plurality of third springs (36) are transversely fixedly installed between the inner side of the plurality of limit blocks (23) and the installation frame; a third inclined surface (35) slidably matched with the tower body (1) is provided at one end of the plurality of limit blocks (23) close to the outer side of the installation frame; a second inclined surface (33) is provided at the other end of the plurality of limit blocks (23); a protrusion (32) is fixedly installed at the end of the plurality of limit blocks (23) located at the top of the second inclined surface (33); and a first inclined surface (31) is provided at the top of the plurality of protrusions (32).

2. A chemical plant waste gas treatment equipment according to claim 1, characterized in that: A rotating rod (28) is rotatably connected in the installation frame, and a plurality of rotating blocks (29) are fixedly mounted on the rotating rod (28). A plurality of the limit blocks (23) are each provided with a groove (30) on the top, and the plurality of rotating blocks (29) are correspondingly located above the plurality of grooves (30), and the ends of the rotating blocks (29) are rotatably extended into the grooves (30) and rotatably abut against the side walls of the grooves (30).

3. A chemical plant waste gas treatment equipment according to claim 2, characterized in that: A pressure rod (8) is slidably connected in the installation frame, a first spring (25) is fixedly connected between the bottom of the pressure rod (8) and the installation frame, a sliding groove (26) is provided on the pressure rod (8), a pull rod (27) is fixedly installed on one side of the rotating rod (28), and one end of the pull rod (27) is slidably fitted in the sliding groove (26).

4. The waste gas treatment equipment for a chemical plant according to claim 1, characterized in that: It also includes an exhaust pipe (5) passing through and fixed to the top of the tower body (1) and an air intake pipe (9) passing through and fixed to one side of the tower body (1), wherein the air intake pipe (9) is located between the filter frame (2) and the washing frame (3), and a nozzle (17) is fixedly provided in the tower body (1) between the washing frame (3) and the demisting frame (4), and a plurality of atomizing nozzles are fixedly installed at the bottom of the nozzle (17).

5. A chemical plant waste gas treatment equipment according to claim 4, characterized in that: A water tank (6) is fixedly mounted on one side of the tower body (1), and the water tank (6) is in communication with the bottom of the tower body (1). A liquid pump (20) and a liquid infusion tube are sequentially connected between the water tank (6) and the spray pipe (17).

6. The waste gas treatment equipment for a chemical plant according to claim 1, characterized in that: Two racks (24) are symmetrically fixedly installed on both sides of the plurality of installation frames, and a plurality of gears (7) which are respectively meshed and connected with the plurality of racks (24) are rotatably provided on the tower body (1).

7. The waste gas treatment equipment for a chemical plant according to claim 1, characterized in that: The filler structure comprises a support net (16), a pressing net (15), and a filler filled between the support net (16) and the pressing net (15).

8. The waste gas treatment equipment for a chemical plant according to claim 7, characterized in that: A rotating shaft (13) is rotatably provided on the tower body (1) above the washing frame (3) and the demisting frame (4), and a plurality of cams (14) are fixedly mounted on the two rotating shafts (13). The outermost sides of the plurality of cams (14) intermittently abut against the top of the pressing net (15).

9. The waste gas treatment equipment for a chemical plant according to claim 1, characterized in that: A cleaning frame (18) is slidably provided in the tower body (1) above the filter frame (2); a plurality of connecting rods (10) are rotatably connected between the two sides of the cleaning frame (18) and the tower body (1); a plurality of brushes (19) are fixedly mounted at the bottom of the cleaning frame (18); the bottoms of the plurality of brushes (19) extend to the top of the filter screen (21).

10. A chemical plant waste gas treatment equipment according to claim 9, characterized in that: A rotating disk (12) is rotatably arranged in the tower body (1), an eccentric rod (11) is fixedly installed at an eccentric position of the rotating disk (12), a guide groove is provided on one of the connecting rods (10), and the eccentric rod (11) is slidably fitted in the guide groove.

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