Vertical PP spray tower and construction method thereof

Abstract

The invention relates to the technical field of PP spray towers, in particular to a vertical PP spray tower and a construction method thereof. Comprising a spray tower body, a water pumping port, a waste inlet and an exhaust port, the exhaust port is formed in the upper end of the spray tower body, the water pumping port and the waste inlet are formed in the lower end of the spray tower body, an upper-layer filler plate and a bottom-layer filler plate are sequentially installed on the inner side of the upper end of the spray tower body from top to bottom, and a transmission assembly is installed at the lower end of the bottom-layer filler plate; the bottom layer filler plate comprises a plate body, a fixing shaft is fixedly connected to the middle of the plate body in a penetrating mode, clockwork springs are installed on the outer sides of the two ends of the fixing shaft correspondingly, and buffering pads are arranged at the upper ends and the lower ends of the two sides of the plate body correspondingly. And intermittent knocking or vibration is automatically carried out on the filler plate, and the mechanical impact can effectively shake off hardened materials attached to the surface of the filler, so that blockage is prevented.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of PP spray tower, in particular to a vertical PP spray tower and a construction method thereof. BACKGROUND

[0002] The vertical PP spray tower is a vertical cylindrical waste gas treatment equipment with polypropylene (PP) as the tower body material: the waste gas enters from the bottom, is uniformly sprayed by the nozzle at the top of the tower, and is in countercurrent contact with the absorbing liquid flowing downward along the multilayer PP filler (such as a Pall ring or a hollow ball), so as to complete the mass transfer process of absorption, neutralization or cooling, etc., the purified gas is discharged after dehydration by a demister at the top of the tower, and the absorbing liquid is continuously recycled by a corrosion-resistant pump in the bottom circulating water tank; the vertical PP spray tower has the characteristics of corrosion resistance, low resistance, small occupation, convenient installation and maintenance, and can simultaneously remove various acidic, alkaline or water-soluble pollutants, and is widely used in tail gas treatment in electronic, chemical, electroplating and other industries. The traditional spray tower will be blocked when the filler layer is hardened, thereby affecting the treatment efficiency, and the operation is unstable, frequent shutdown maintenance is required, therefore, the vertical PP spray tower and the construction method thereof are provided for solving the above problems. SUMMARY

[0003] The purpose of the present application is to provide a vertical PP spray tower and a construction method thereof to solve the problem that the traditional spray tower will be blocked when the filler layer is hardened, thereby affecting the treatment efficiency, and the operation is unstable, frequent shutdown maintenance is required.

[0004] To achieve the above-mentioned purpose, the present application provides the following technical scheme: A vertical PP spray tower and a construction method thereof, comprising a spray tower main body, a water pumping port, a waste gas inlet port and an exhaust port, the upper end of the spray tower main body is provided with the exhaust port, the lower end of the spray tower main body is provided with the water pumping port and the waste gas inlet port, the upper end of the spray tower main body is sequentially provided with an upper layer of filler plate and a bottom layer of filler plate from top to bottom, and the bottom layer of filler plate is provided with a transmission assembly at the lower end; the bottom layer of filler plate comprises a plate body, a fixed shaft is fixedly connected through the plate body, a clock spring is arranged at the outer side of the two ends of the fixed shaft, a buffer pad is arranged at the upper and lower ends of the two sides of the plate body, a limiting plate is fixedly connected at the end of the buffer pad away from the plate body, and the limiting plate is fixedly connected between the one side of the limiting plate and the spray tower main body; the transmission assembly is arranged at the lower end of the inner side of the spray tower main body, and a separation unit is arranged at the middle of the lower end of the inner side of the spray tower main body.

[0005] As a further optimization of the present application, wherein: the inner side of the spray tower main body is provided with two groups of spray groups connected by a water supply pipeline, the two groups of spray groups are arranged on the upper layer of filler plate and the upper end of the bottom layer of filler plate respectively, and the upper end of the upper layer of filler plate and the bottom layer of filler plate is placed with filler.

[0006] As a further optimization of the present application, wherein: the separation unit comprises a separation rotating plate, the bottom end of the separation rotating plate is arc-shaped, and the bottom end of the separation rotating plate is fixedly connected with a rotating shaft which is exposed at both ends and penetrates through the separation rotating plate, a bottom sealing element is rotatably connected to one side of the lower end of the separation rotating plate, and the bottom end of the bottom sealing element is fixedly connected with the inner wall of the bottom end of the spray tower body.

[0007] As a further optimization of the present application, wherein: the transmission assembly comprises a U-shaped fixed frame, a top rod is slidably connected in the middle of the fixed frame, the top end of the top rod is arc-shaped, and the top end of the top rod is in close contact with one side of the lower end of the plate body, and the bottom end of the top rod is fixedly connected with a buoyancy plate by welding, and the buoyancy plate is arranged inside the fixed frame.

[0008] As a further optimization of the present application, wherein: the separation rotating plate is fixedly connected between one side of the middle and the moving end of the telescopic elbow, the lower side of the fixed end of the telescopic elbow is fixedly connected with the inner wall of the bottom end of the spray tower body, a return spring is installed on the outer side of the telescopic elbow, the upper end of the return spring is fixedly connected with the separation rotating plate, and the other end of the return spring is fixedly connected with the inner wall of the bottom end of the spray tower body.

[0009] As a further optimization of the present application, wherein: the separation rotating plate is fixedly connected with a vertical plate on both sides of the lower end, one side of the vertical plate is fixedly connected with the inner wall of the spray tower body, the other end of the vertical plate is fixedly connected with a sealing edge strip, there are two sealing edge strips, the sealing edge strip and the vertical plate correspond one-to-one, and the sealing edge strip is in close contact with both sides of the separation rotating plate.

[0010] As a further optimization of the present application, wherein: the lower end of the spray tower body is provided with an elastic clamping piece, there are two groups of elastic clamping pieces, and the elastic clamping pieces are arranged on the upper end of both sides of the separation rotating plate.

[0011] As a further optimization of the present application, wherein: the elastic clamping piece comprises a clamping plate, the clamping plate is L-shaped, a screw is rotatably connected to the upper end of the clamping plate, the screw is screw-connected between the bottom end and the upper end of the vertical plate, a blocking block is welded and fixed to the lower end of the end away from the screw, and the blocking block is arranged on one side of the upper end of the separation rotating plate.

[0012] As a further optimization of the present application, wherein: when the separation rotating plate and the bottom end of the spray tower body are in a 90° state, the upper end of the separation rotating plate and the top end of the fixed frame are arranged on the same horizontal plane, the waste inlet is arranged on the upper end of the fixed frame, and the water suction inlet is located at the lower end of the buoyancy plate.

[0013] As a further optimization of the present application, wherein: the method comprises the following steps: Step 1: from bottom to bottom, the spray tower body is assembled, in the process of assembly, the fixed frame arranged in the transmission assembly is welded and fixed or bolted at the bottom end of the spray tower body, and the separation unit is also installed in the process, and the installation is completed; Step 2: then the bottom filler plate and the external tower body positioned thereon are installed on the upper side of the bottom end of the spray tower, and are connected through a welding process, in the process of installation, the spray group is assembled correspondingly, finally the spray tower top end section, the upper filler plate and the spray group are assembled, and a complete spray tower is constructed; Step 3: after the construction is completed, the spray tower is connected with the external tail gas connecting pipeline, the circulating pump and the water pump exhaust pipeline, after the connection is completed, the filler is poured onto the upper filler plate and the upper end of the bottom filler plate through the maintenance window and the inspection window, and after the filler pouring is completed, the system is put into operation and use; Step 4: in the process of operation and use, the separation rotating plate separates the liquid medicine at the bottom end of the spray tower body into two parts, when the liquid surface of the liquid medicine close to the water pumping port is lowered to a certain degree, the separation rotating plate breaks through the barrier block under the pressure action of the liquid medicine on the other side, so that the liquid medicine is poured to the other side, at this time, the buoyancy plate moves upward quickly, and the top rod knocks the plate body, and when the liquid surfaces on both sides are flat, the separation rotating plate is reset under the action of the reset spring.

[0014] Compared with the prior art, the beneficial effects of the present application are: 1、in the present application, the transmission assembly driven by the water level difference and the movable bottom filler plate are designed, the system can automatically knock or vibrate the filler plate intermittently without interrupting the operation, the mechanical impact can effectively shake off the hardened material attached to the surface of the filler, prevent the blockage, ensure the smooth flow of gas-liquid and the high efficiency of the mass transfer process, and reduce the frequency of shutdown maintenance caused by blockage; 2、in the present application, the energy of the whole unblocking action comes from the fluctuation of the tower bottom liquid level, without additional external power sources such as motors and cylinders, the separation unit divides the tower bottom liquid pool into two parts, and the pressure difference generated by the liquid level drop on the water pumping side is used as the trigger mechanism, when the liquid level difference reaches the critical value, the system automatically completes a series of actions of “separation plate overturning→liquid level rapid balancing→buoyancy plate floating up→top rod knocking→separation plate resetting”. This design not only responds timely and reliably, but also completely eliminates the need for external energy consumption, realizes the self-sufficiency of energy and the intelligent self-control of the system; 3、The design of the separation unit in the application forms two areas of liquid at the bottom of the tower, which helps to prolong the residence time of the liquid in the tower, so that the reaction is more complete, and by adjusting the water level difference, the local flow channel is broken, the "channeling" phenomenon is avoided, the waste gas and fresh liquid are more uniformly contacted, thereby improving the removal rate of pollutants and the utilization efficiency of reagents, the design of the buffer pad and the limiting plate ensures the effectiveness and softness of the knocking action, which not only achieves the effect of clearing the blockage, but also avoids mechanical damage to the filler and the tower structure, prolonging the service life of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the application; Figure 2 is a schematic diagram of the overall structure of the application; Figure 1 is a schematic diagram of the overall structure of the application; Figure 3 is a schematic diagram of the overall structure of the application; Figure 1 is a schematic diagram of the overall structure of the application; Figure 4 is a schematic diagram of the overall structure of the application; Figure 5 is a schematic diagram of the overall structure of the application; Figure 4 is a schematic diagram of the overall structure of the application; Figure 6 is a schematic diagram of the overall structure of the application; Figure 7 is a schematic diagram of the overall structure of the application.

[0016] In the figure: 1, spray tower main body; 2, spray group; 3, upper layer filler plate; 4, bottom layer filler plate; 41, plate body; 42, limiting plate; 43, buffer pad; 44, fixed shaft; 45, clock spring; 5, separation unit; 51, separation rotating plate; 52, rotating shaft; 53, bottom sealing element; 6, transmission assembly; 61, fixed frame; 62, buoyancy plate; 63, top rod; 7, water suction port; 8, waste inlet; 9, exhaust port; 10, telescopic elbow; 11, return spring; 12, vertical plate; 13, elastic clamping piece; 131, clamping plate; 132, screw; 133, blocking block; 14, sealing edge strip. DETAILED DESCRIPTION

[0017] Please refer to Figures 1-7 , the application provides a technical solution: The utility model provides a kind of vertical PP spray tower and its construction method, including spray tower main body 1, pumping port 7, into waste port 8 and exhaust port 9, spray tower main body 1 upper end is equipped with exhaust port 9, and spray tower main body 1 lower end is equipped with pumping port 7 and into waste port 8, and spray tower main body 1 upper end inboard is successively equipped with upper layer filler plate 3 and bottom layer filler plate 4 from top to bottom, and bottom layer filler plate 4 lower end is equipped with transmission assembly 6;Bottom layer filler plate 4 includes plate body 41, and fixedly connected with fixed shaft 44 in plate body 41 middle, and fixed shaft 44 both ends outside are equipped with clockwork spring 45, and plate body 41 both sides upper and lower ends are equipped with buffer pad 43, and buffer pad 43 one end away from plate body 41 is fixedly connected with limiting plate 42, and limiting plate 42 one side is fixedly connected between spray tower main body 1;Transmission assembly 6 lower end is installed in spray tower main body 1 lower end inboard, and spray tower main body 1 inboard lower end middle is equipped with separation unit 5.

[0018] As the further implementation of the technical scheme of the present application, the spray tower main body 1 is provided with two groups of spray groups 2 connected by water supply pipes, and the two groups of spray groups 2 are arranged on the upper layer filler plate 3 and the bottom layer filler plate 4, respectively. The upper layer filler plate 3 and the bottom layer filler plate 4 are provided with fillers on the upper ends. Through the above arrangement, the effect of waste treatment can be ensured in cooperation with the fillers placed on the upper ends of the upper layer filler plate 3 and the bottom layer filler plate 4. As the further implementation of the technical scheme of the present application, the separation unit 5 includes a separation rotating plate 51, which is arc-shaped at the bottom end and is fixedly connected with a rotating shaft 52 at both ends exposed outside and penetrating through the separation rotating plate 51. A bottom sealing element 53 is rotatably connected to one side of the lower end of the separation rotating plate 51, and the bottom end of the bottom sealing element 53 is fixedly connected with the inner wall of the bottom end of the spray tower main body 1. Through the above arrangement, the water in the interior of the bottom end of the spray tower main body 1 can be divided into two parts by the separation rotating plate 51. As the further implementation of the technical scheme of the present application, the transmission assembly 6 includes a U-shaped fixed frame 61, a top rod 63 slidingly connected in the middle of the fixed frame 61, the top end of the top rod 63 being arc-shaped, and the top end of the top rod 63 being in close contact with one side of the lower end of the plate body 41. The bottom end of the top rod 63 is fixedly connected with a buoyancy plate 62. The buoyancy plate 62 is arranged inside the fixed frame 61. Through the above arrangement, the buoyancy in the water level difference adjustment process can be utilized for knocking and transmission. As the further implementation of the technical scheme of the present application, one side of the middle of the separation rotating plate 51 is fixedly connected with the moving end of the telescopic elbow pipe 10, the lower side of the fixed end of the telescopic elbow pipe 10 is fixedly connected with the inner wall of the bottom end of the spray tower main body 1, the outer side of the telescopic elbow pipe 10 is provided with a return spring 11, one end of the return spring 11 is fixedly connected with the separation rotating plate 51, and the other end of the return spring 11 is fixedly connected with the inner wall of the bottom end of the spray tower main body 1. Through the above arrangement, the separation rotating plate 51 can be reset after the water level difference adjustment is completed. As a further implementation of the present scheme, the lower end of the separation rotating plate 51 is fixedly connected with a vertical plate 12 on both sides, one side of the vertical plate 12 is fixedly connected with the inner wall of the spray tower body 1, and the other end of the vertical plate 12 is fixedly connected with a sealing edge 14, the sealing edge 14 is provided with two, and the sealing edge 14 and the vertical plate 12 correspond one by one, the sealing edge 14 is in close contact with both sides of the separation rotating plate 51, through the above setting, the separation rotating plate 51 can be further stably installed, and the sealing effect during the separation of the water level on both sides can be ensured; As a further implementation of the present scheme, the lower end of the spray tower body 1 is provided with an elastic clamping piece 13, the elastic clamping piece 13 is provided with two groups, and the elastic clamping piece 13 is arranged on the upper end of the separation rotating plate 51 on both sides, through the above setting, the stability of the device as a whole during actual use can be further improved; As a further implementation of the present scheme, the elastic clamping piece 13 comprises a clamping plate 131, the clamping plate 131 is provided in an L shape, a screw 132 is rotatably connected to the upper end of the clamping plate 131, the screw 132 is screw-connected between the bottom end and the upper end of the vertical plate 12, a blocking block 133 is welded and fixed to the lower side of the end of the clamping plate 131 away from the screw 132, and the blocking block 133 is arranged on one side of the upper end of the separation rotating plate 51, through the above setting, the water level difference can be adjusted at one time when the water level difference reaches a certain degree; As a further implementation of the present scheme, when the separation rotating plate 51 and the bottom end of the spray tower body 1 are in a 90° state, the upper end of the separation rotating plate 51 and the top end of the fixed frame 61 are arranged on the same horizontal plane, the waste inlet 8 is arranged on the upper end of the fixed frame 61, and the water suction inlet 7 is located at the lower end of the buoyancy plate 62, through the above setting, the waste gas can be more stably treated; As a further implementation of the present scheme, the following steps are included: Step 1: Assemble the spray tower body 1 from bottom to bottom, in the process of assembly, the fixed frame 61 arranged in the transmission assembly 6 is welded and fixed or fixed by bolts at the bottom end of the spray tower body 1, and the separation unit 5 is also installed in this process, and the installation is completed; Step 2: Then the bottom filler plate 4 and the positioning outside tower body are installed on the upper side of the spray tower bottom, and are connected by welding process, in the process of installation, the spray group 2 is correspondingly assembled, and finally the spray tower top section, the upper filler plate 3 and the spray group 2 are assembled, to build a complete spray tower; Step 3: After the completion of the construction, the spray tower is connected with the external tail gas connecting pipeline, the circulating pump and the water pump exhaust pipeline, after the connection is completed, the filler is installed on the upper end of the upper filler plate 3 and the bottom filler plate 4 through the maintenance window and the inspection window, after the filler installation is completed, the operation and use are put into operation; Step 4: During the running process, the separation turn plate 51 separates the liquid medicine at the bottom end of the spray tower body 1 into two parts, when the liquid level of the liquid medicine close to the water suction port 7 is lowered to a certain degree, the separation turn plate 51 breaks through the barrier block 133 under the pressure of the liquid medicine on the other side, so that the liquid medicine is poured to the other side, at this time the buoyancy plate 62 quickly moves up, and the top rod 63 knocks the plate body 41, when the liquid levels on both sides are the same, the separation turn plate 51 is reset under the action of the reset spring 11.

[0019] The principles and implementation manners of the present application are described by using specific examples in the present application, and the above examples are only used to help understand the method of the present application and its core idea. The above description is only the preferred implementation manner of the present application, and it should be pointed out that, due to the limited expression of the text, there are infinite specific structures, and for ordinary skilled persons in the technical field, some improvements, decorations or changes can be made without departing from the principles of the present application, and the above technical features can be combined in a proper way; the improvements, decorations, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the protection scope of the present application.

Claims

1. A vertical PP spray tower, comprising a spray tower body (1), a water inlet (7), a waste inlet (8), and a vent (9), characterized in that: The spray tower body (1) has an exhaust port (9) at the upper end, and the spray tower body (1) has a water inlet (7) and a waste inlet (8) at the lower end. The spray tower body (1) has an upper packing plate (3) and a bottom packing plate (4) installed from top to bottom on the inner side of the upper end. The bottom packing plate (4) has a transmission assembly (6) installed at the lower end. The bottom packing plate (4) includes a plate body (41), a fixed shaft (44) is fixedly connected through the middle of the plate body (41), and spring springs (45) are installed on the outer sides of both ends of the fixed shaft (44). Buffer pads (43) are provided at the upper and lower ends of both sides of the plate body (41). A limit plate (42) is fixedly connected to one end of the buffer pad (43) away from the plate body (41). One side of the limit plate (42) is fixedly connected to the spray tower body (1). The lower end of the transmission component (6) is installed on the inner side of the lower end of the spray tower body (1), and a partition unit (5) is installed in the middle of the lower end of the inner side of the spray tower body (1).

2. A vertical PP spray tower according to claim 1, characterized in that: The spray tower body (1) has two spray groups (2) connected by a water supply pipe installed on its inner side. The two spray groups (2) are respectively set on the upper layer packing plate (3) and the lower layer packing plate (4). The upper layer packing plate (3) and the lower layer packing plate (4) are both filled with packing material.

3. A vertical PP spray tower according to claim 1, characterized in that: The partition unit (5) includes a partition plate (51). The bottom end of the partition plate (51) is arc-shaped, and the bottom end of the partition plate (51) is fixedly connected to a rotating shaft (52) with both ends exposed on the outside and passing through the partition plate (51). A bottom seal (53) is rotatably connected to one side of the lower end of the partition plate (51). The bottom end of the bottom seal (53) is fixedly connected to the inner wall of the bottom end of the spray tower body (1).

4. A vertical PP spray tower according to claim 1, characterized in that: The transmission assembly (6) includes a U-shaped fixed frame (61), a top rod (63) is slidably connected in the middle of the fixed frame (61), the upper edge of the top rod (63) is arc-shaped, and the top of the top rod (63) is in close contact with one side of the lower end of the plate (41). A buoyancy plate (62) is welded and fixedly connected to the bottom end of the top rod (63), and the buoyancy plate (62) is set inside the fixed frame (61).

5. A vertical PP spray tower according to claim 3, characterized in that: The middle side of the dividing plate (51) is fixedly connected to the moving end of the telescopic bend (10), the lower side of the fixed end of the telescopic bend (10) is fixedly connected to the inner wall of the bottom end of the spray tower body (1), a return spring (11) is installed on the outside of the telescopic bend (10), the upper end of the return spring (11) is fixedly connected to the dividing plate (51), and the other end of the return spring (11) is fixedly connected to the inner wall of the bottom end of the spray tower body (1).

6. A vertical PP spray tower according to claim 3, characterized in that: The lower ends of the partition plate (51) are fixedly connected to the vertical plates (12). One side of the vertical plate (12) is fixedly connected to the inner wall of the spray tower body (1). The other end of the vertical plate (12) is fixedly connected to the sealing strip (14). There are two sealing strips (14). The sealing strips (14) and the vertical plates (12) correspond one to one. The sealing strips (14) are in close contact with both sides of the partition plate (51).

7. A vertical PP spray tower according to claim 1, characterized in that: The lower end of the spray tower body (1) is equipped with an elastic clip (13), and there are two sets of elastic clips (13). The elastic clips (13) are located on the upper ends of both sides of the partition plate (51).

8. A vertical PP spray tower according to claim 7, characterized in that: The elastic clip (13) includes a clip plate (131), which is L-shaped. A screw (132) is rotatably connected to the upper end of the clip plate (131). The bottom end of the screw (132) is spirally connected to the upper end of the upright plate (12). A blocking block (133) is welded and fixed to the lower side of the end of the clip plate (131) away from the screw (132). The blocking block (133) is located on one side of the upper end of the partition plate (51).

9. A vertical PP spray tower according to claim 3, characterized in that: When the bottom of the dividing plate (51) and the spray tower body (1) are at 90°, the top of the fixed frame (61) is set on the same horizontal plane. The waste inlet (8) is set on the upper end of the fixed frame (61), and the water inlet (7) is located at the lower end of the buoyancy plate (62).

10. A method for constructing a vertical PP spray tower according to any one of claims 1-9, characterized in that: Includes the following steps: Step 1: Assemble the main body (1) of the spray tower from bottom to bottom. During the assembly process, the fixing frame (61) set inside the conveying component (6) is welded and fixed or bolted to the bottom of the main body (1) of the spray tower. The partition unit (5) is also installed during this process to complete the installation. Step 2: Then install the bottom packing plate (4) and the external tower body that it positions on the upper side of the bottom of the spray tower and connect them by welding. During the installation process, assemble the spray group (2) accordingly. Finally, assemble the top section of the spray tower, the upper packing plate (3) and the spray group (2) to build a complete spray tower. Step 3: After the construction is completed, connect the spray tower to the external exhaust gas connection pipe, circulation pump, water pump exhaust pipe. After the connection is completed, the installation needs to put the packing material into the upper packing plate (3) and the lower packing plate (4) through the maintenance window and inspection window. After the packing material is put into the tower, it can be put into operation and use. Step 4: During operation, the dividing plate (51) divides the liquid at the bottom of the spray tower body (1) into two parts. When the liquid level of the part near the water inlet (7) drops to a certain level, the dividing plate (51) breaks through the barrier block (133) under the pressure of the liquid on the other side, causing the liquid to pour to the other side. At this time, the buoyancy plate (62) moves up quickly and controls the top rod (63) to strike the plate (41). When the liquid levels on both sides are level, the dividing plate (51) resets under the action of the reset spring (11).

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